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Significant Complications (significant + complications)
Selected AbstractsOxidative stress of the newborn in the pre- and postnatal period and the clinical utility of melatoninJOURNAL OF PINEAL RESEARCH, Issue 2 2009Eloisa Gitto Abstract:, Newborns, and especially those delivered preterm, are probably more prone to oxidative stress than individuals later in life. Also during pregnancy, increased oxygen demand augments the rate of production of reactive oxygen species (ROS) and women, even with normal pregnancies, experience elevated oxidative stress and lipid peroxidation compared with nonpregnant women. Also, there appears to be an increase in ROS generation in the placenta of pre-eclamptic women. In comparison with healthy adults, newborn infants have lower levels of plasma antioxidants such as vitamin E, ,-carotene, and sulphydryl groups, lower levels of plasma metal binding proteins including ceruloplasmin and transferrin, and reduced activity of erythrocyte superoxide dismutase. This review summarizes conditions of newborns where there is elevated oxidative stress. Included in this group of conditions is asphyxia, respiratory distress syndrome and sepsis and the review also summarizes the literature related to clinical trials of antioxidant therapies and of melatonin, a highly effective antioxidant and free radical scavenger. The authors document there is general agreement that short-term melatonin therapy may be highly effective and that it has a remarkably benign safety profile, even when neonates are treated with pharmacological doses. Significant complications with long-term melatonin therapy in children and adults also have not been reported. None of the animal studies of maternal melatonin treatment or in postnatal life have shown any treatment-related side effects. The authors conclude that treatment with melatonin might result in a wide range of health benefits, improved quality of life and reduced healthcare costs and may help reduce complications in the neonatal period. [source] Utilization rates, complications and costs of percutaneous liver biopsy: a population-based study including 4275 biopsiesLIVER INTERNATIONAL, Issue 5 2008Robert P. Myers Abstract Background: Liver biopsy is an important tool in the management of patients with liver disease. Because biopsy practices may be changing, we studied patterns of use in a large Canadian Health Region. We aimed to describe trends in biopsy utilization and the incidence and costs of complications from a population-based perspective. Methods: Administrative databases were used to identify percutaneous liver biopsies performed between 1994 and 2002. Significant complications were identified by reviewing medical records of patients hospitalized within 7 days of a biopsy and those with a diagnostic code indicative of a procedural complication. Analyses of biopsy rates employed Poisson regression. Results: Between 1994 and 2002, 3627 patients had 4275 liver biopsies (median 1 per patient; range 1,12). Radiologists performed the majority (90%), particularly during the latter years (1994 vs. 2002: 73 vs. 98%; P<0.0001). The overall annual biopsy rate was 54.8 per 100 000 population with a 41% (95% CI 23,61%) increase between 1994 and 2002. Annual increases were greatest in males and patients 30,59 years. Thirty-two patients (0.75%) had significant biopsy-related complications (1994,1997 vs. 1998,2002: 1.28 vs. 0.44%; P=0.003). Pain requiring admission (0.51%) and bleeding (0.35%) were most common. Six patients (0.14%) died; all had malignancies. The median direct cost of a hospitalization for complications was $4579 (range $1164,29 641). Conclusions: Liver biopsy rates are increasing likely owing to the changing epidemiology and management of common liver diseases. The similarity of the complication rate in our population-based study with estimates from specialized centres supports the safety of this important procedure. [source] Evaluation of a new percutaneous dilatational tracheostomy setANAESTHESIA, Issue 9 2001apparatus Percutaneous tracheostomy is a well established technique used primarily to assist weaning from mechanical ventilation on many intensive care units. We report our experiences of a total of 36 procedures performed with the new Blue RhinoÔ Percutaneous Tracheostomy Introducer Set developed by Ciaglia. The technique was successful in all cases and was simpler and quicker to perform than with the earlier Ciaglia percutaneous tracheostomy set. Difficulties were encountered when using ShileyÔ tracheostomy tubes. Significant complications included one posterior wall tear and one tracheal cartilage ring fracture. [source] Use of Intraoperative Botulinum Toxin in Facial ReconstructionDERMATOLOGIC SURGERY, Issue 2 2009TIMOTHY CORCORAN FLYNN MD BACKGROUND Botulinum toxin is a potent neuromodulator that temporarily relaxes muscles and can improve wound healing. OBJECTIVE This retrospective analysis assessed the use of intraoperative botulinum toxin type A or B in patients undergoing surgical reconstruction after Mohs micrographic surgery for treatment of skin cancer. The primary effect of intradermal botulinum toxin on wound healing was also studied. METHODS & MATERIALS Charts of patients who received intraoperative botulinum toxin type A (n=9) or B (n=9) in conjunction with reconstructive surgery after Mohs micrographic surgery were reviewed. Three volunteers also underwent dermal injections of botulinum toxin type A followed by erbium laser resurfacing. RESULTS Outcomes did not differ in patients treated with botulinum toxin type A and type B. Patients had excellent apposition of wound edges and smooth skin overlying soft tissue; no significant complications were noted. Healing of erbium laser ablation did not differ between botulinum toxin type A,treated skin and control skin. CONCLUSIONS Administration of botulinum toxin type A or B after reconstruction after Mohs micrographic surgery aided wound healing; botulinum toxin type A and botulinum toxin type B were equally effective. Intradermal botulinum toxin type A demonstrated no primary effect on healing of erbium laser,resurfaced skin. [source] Novel Face-Lift Suspension Suture and Inserting Instrument: Use of Large Anchors Knotted into a Suture with Attached Needle and Inserting Device Allowing for Single Entry Point Placement of Suspension Suture.DERMATOLOGIC SURGERY, Issue 3 2006Preliminary Report of 20 Cases with 6- to 12-Month Follow-Up BACKGROUND Various suspension suture techniques exist to elevate the mid-face, jowls, and neck. OBJECTIVE To assess safety and efficacy of a new suspension suture and inserting instrument with both standard and minimal incision (no-skin-excision) face-lifts. METHODS A new type of multianchor suspension suture assembled from commercially available 2-0 absorbable monofilament material, with 5 to 9 equally spaced knots through which are secured 7 to 9 mm bits of 0 thickness similar suture material, and an attached straightened needle, was used to elevate and suspend facial tissues to temporal or mastoid fascia. The suspension sutures are placed in the deep subcutaneous tissues, just above the superficial musculo aponeurotic system (SMAS), by use of a novel, blunt instrument, which does not require a second, distal exit point. The suspension suture distal end floats free. The proximal needle end is sutured to fascia. The suture was used on 20 patients. Fourteen of them underwent pure, "no-skin-excision," suspension lifts. Six had suspension suture elevation of the mid-face in conjunction with relatively conservative open lifts. Nine- to 12-month results were evaluated. RESULTS With open face-lifts, 9- to 12-month results are excellent with significant persistence of the correction initially achieved. Resulting scars remained fine line. There were no complications. With pure suspension lifts, initial results were impressive. By 6 months, correction started to fade. By 12 months 100% of initial correction for jowls, and 80 to 100% for mid-face, appeared lost. Recovery time was 2 to 4 days. There were no significant complications. CONCLUSION Large multianchor, absorbable monofilament sutures can safely and effectively enhance results of conservative lifts, with remarkable elevation of the mid-face not achievable with simple SMAS flaps. These suspension sutures can easily and safely achieve impressive, though relatively short-term results, with a minimal incision, "no-skin-excision" technique. [source] Complications from Injectable Polyacrylamide Gel, a New Nonbiodegradable Soft Tissue FillerDERMATOLOGIC SURGERY, Issue 12p2 2004Snehal P. Amin Background. Polyacrylamide gels, containing a hydrogel composed of polyacrylamide and water, are used for soft tissue augmentation and contour correction. There are no reports of significant complications after injection of this material into the face. Objective. We report an inflammatory reaction after injection of polyacrylamide gels for zygomatic facial augmentation. Methods. A retrospective chart review of single case is presented. Results. An inflammatory reaction at the sites of polyacrylamide gels injection was noted at 1 month after initial injection. Despite two ensuing courses of broad-spectrum antibiotics, the patient presented to us with persistent draining nodules. Intralesional steroid injections resulted in prompt resolution and no recurrence. Conclusion. Inflammatory reactions have been noted in patients receiving polyacrylamide gels for breast augmentation. Facial polyacrylamide gels injections may also be associated with an inflammatory reaction that responds to intralesional steroids. With increasing availability of a variety of soft tissue fillers, dermatologists should be aware of this delayed complication from polyacrylamide gels. [source] Surgical treatment of esophageal leiomyoma located near or at the esophagogastric junction via a thoracoscopic approachDISEASES OF THE ESOPHAGUS, Issue 2 2009Z. G. Li SUMMARY Esophageal leiomyoma can be enucleated safely and effectively by minimally invasive surgery. The laparoscopic approach has been a conventional option for this kind of tumor located near or at the esophagogastric (EG) junction. The aims of this study were to evaluate the surgical outcome of thoracoscopic resection of leiomyoma at the EG junction, and discuss factors affecting the incidence of postoperative gastroesophageal reflux. Fourteen patients who underwent thoracoscopic resection of esophageal leiomyoma located near or at the EG junction (<4 cm above the esophageal hiatus) from January 2002 to August 2007 were reviewed retrospectively. Tumor characteristics, surgical methods, and postoperative outcomes were evaluated. A left approach of video-assisted thoracoscopy was used in 13 patients; a right approach was used for the other patient, whose multiple tumors were located in the EG junction and mid-esophagus. Postoperative recovery was uneventful in all patients, with no mucosa leakage or other significant complications. Mean tumor size was 3.2 cm (1.2,6.0 cm). Of the 14 patients, two had serpiginous leiomyoma, two had multiple tumors, and the others had solitary tumors. Mean postoperative stay in hospital was 7 days (4,11 days). Postoperative dysphagia was not reported, although gastroesophageal reflux was noted in one patient. Thoracoscopic resection of esophageal leiomyomas near or at the EG junction is feasible, with a low prevalence of postoperative gastroesophageal reflux. [source] A cranial intercondylar arthroscopic approach to the caudal medial femorotibial joint of the horseEQUINE VETERINARY JOURNAL, Issue 1 2009T. Muurlink Summary Reason for performing study: Current noninvasive techniques for imaging the soft tissue structures of the stifle have limitations. Arthroscopy is commonly used for the investigation and treatment of stifle pain. Cranial and caudal arthroscopic approaches to the femorotibial joints are used. However, complete examination of the axial aspect of the medial femorotibial joint (MFTJ) is not possible currently. Objective: To develop a cranial approach to the caudal pouch of the MFTJ and to assess whether it would allow a more complete examination of the compartment and facilitate the caudomedial approach. Method: The regional anatomy was reviewed and the technique developed on cadavers. A series of nonrecovery surgeries were performed to evaluate the procedure, which was then used in 7 clinical cases. Advantages compared to existing techniques and complications encountered were recorded. Results: Successful entry into the caudal pouch of the MFTJ was achieved in 20 of 22 cadaver legs, 8 of 8 joints of nonrecovery surgery horses and 6 of 7 clinical cases operated. The caudal ligament of the medial meniscus could be visualised, along with other axial structures of the caudal joint pouch. The technique was used to facilitate a caudomedial approach and allowed better triangulation within the joint space. Complications were minor and included puncture of the caudal joint capsule and scoring of the axial medial femoral condyle. Conclusions and potential relevance: It is possible to access the caudal pouch of the MFTJ arthroscopically using a cranial intercondylar approach. The technique has advantages when compared to existing techniques and is associated with few significant complications. A cranial approach to the caudal pouch of the MFTJ could complement existing techniques and be useful clinically. [source] Reconstruction of floor of mouth defects by the facial artery musculo-mucosal flap following cancer ablationHEAD & NECK: JOURNAL FOR THE SCIENCES & SPECIALTIES OF THE HEAD AND NECK, Issue 4 2008FRCSC, Tareck Ayad MD Abstract Background. The purpose of this study is to review our experience with the use of the facial artery musculo-mucosal (FAMM) flap for floor of mouth (FOM) reconstruction following cancer ablation to assess its reliability, associated complications, and functional results. Methods. This was a retrospective analysis of 61 FAMM flaps performed for FOM reconstruction from 1997 to 2006. Results. No total flap loss was observed. Fifteen cases of partial flap necrosis occurred, with 2 of them requiring revision surgery. We encountered 8 other complications, with 4 of them requiring revision surgery for an overall rate of revision surgery of 10% (6/61). The majority of patients resumed to a regular diet (85%), and speech was considered as functional and/or understandable by the surgeon in 93% of the patients. Dental restoration was successful for 83% (24/29) of the patients. Conclusion. The FAMM flap is well suited for FOM reconstruction because it is reliable, has few significant complications, and allows preservation of oral function. © 2007 Wiley Periodicals, Inc. Head Neck, 2008 [source] Cost-effective laparoscopic pyeloplasty: Single center experienceINTERNATIONAL JOURNAL OF UROLOGY, Issue 11 2003ASHOK KUMAR HEMAL Summary Objective:, Laparoscopic pyeloplasty (LPP) is a minimally invasive treatment option for ureteropelvic junction (UPJ) obstruction. We report here our experience of performing cost-effective LPP on 24 patients at a single center. Methods:, Between October 1999 and March 2002, LPP was performed in 24 patients (17 male, seven female; age range 8,51 years) including two patients who had failed previous endourologic treatments. In two patients with concomitant renal stones, laparoscopic pyelolithotomy was also performed. LPP was conducted in a cost-reductive manner by both transperitoneal (n = 12) and retroperitoneal (n = 12) access. To reduce the cost, an indigenous balloon to create the retroperitoneal space, reusable ports, ordinary polyglactin suture and intracorporeal free-hand suturing were employed. To reduce operative time, antegrade stenting was also performed in some cases. Results:, Laparoscopic Anderson,Hynes pyeloplasty was performed in 16, Foley Y,V pyeloplasty in five and Fenger pyeloplasty in three patients. One patient required conversion to open surgery due to tension at the anastomosis site during Anderson,Hynes pyeloplasty. The mean operating time, blood loss, analgesic (pethidine) requirement, duration of drain and hospital stay for the retroperitoneal and transperitoneal groups were 170.3 and 187.6 min, 102.2 and 145.9 mL, 125 and 136.4 mg, 2.1 and 2.5 days, and 3.4 and 4.3 days, respectively. No significant complications were encountered apart from prolonged ileus in three patients in the transperitoneal group. The mean follow-up period was 10.8 months with a range of 2,24 months. Postoperative renal scan was performed at 3 months in 21 patients, and 1 year in 11 patients. There was evidence of equivocal obstruction in one patient, but there were no obstructions in the remaining patients. Conclusion:, Although LPP is technically demanding, it is emerging as a viable, minimally invasive alternative to open pyeloplasty for UPJ obstruction with a success rate similar to that of open pyeloplasty. It allows the duplication of open surgery steps (unlike endoscopic procedures), thereby providing durable and sustained results. LPP can also be performed safely, effectively and efficiently in a cost-efficient manner. [source] Exclusive use of acid citrate dextrose for anticoagulation during extracorporeal photopheresis in patients with contraindications to heparin: An effective protocol,JOURNAL OF CLINICAL APHERESIS, Issue 2 2008Elena Nedelcu Abstract Extracorporeal photopheresis (ECP) routinely uses heparin for anticoagulation. For patients with contraindications to heparin, alternative anticoagulation using acid citrate dextrose (ACD-A) has been reported to be safe and effective. However, detailed ECP protocols that exclusively use ACD-A anticoagulation and minimize citrate toxicity have not yet been published. We report a protocol that completely replaces heparin with ACD-A for ECP, which was developed at the University of California, Los Angeles (UCLA), and our experience since its implementation. ECP was performed with the UVAR XTS photopheresis system using ACD-A and control of the rate of citrate infusion. Calcium gluconate solution was administered prophylactically and as needed for symptoms of citrate toxicity. The medical records of patients who underwent ECP using the ACD-A protocol between January 2003 and July 2006 were reviewed. The incidence and severity of citrate toxicity and the technical data for all procedures were analyzed. During this period, 94 ECP procedures were performed with ACD-A anticoagulation on five patients. All patients tolerated the procedures well without significant complications. Only minimal symptoms of citrate toxicity (grade 1) were observed in 24.5% of all procedures; symptoms resolved promptly following administration of additional calcium gluconate. In conclusion, an effective protocol for ECP using ACD-A anticoagulation exclusively in patients with contraindications to heparin employs continuous monitoring of flow rates and prophylactic administration of calcium gluconate to minimize citrate toxicity. J. Clin. Apheresis, 2008. Published 2008 Wiley-Liss, Inc. [source] Percutaneous Mitral Valve Repair for Mitral RegurgitationJOURNAL OF INTERVENTIONAL CARDIOLOGY, Issue 1 2003PETER C. BLOCK M.D. Mitral regurgitation (MR) associated with, ischemic, and degenerative (prolapse) disease, contributes to left ventricular (LV) dysfunction due to remodeling, and LV dilation, resulting in worsening of MR. Mitral valve (MV) surgical repair has provided improvement in survival, LV function and symptoms, especially when performed early. Surgical repair is complex, due to diverse etiologies and has significant complications. The Society for Thoracic Surgery database shows that operative mortality for a 1st repair is 2% and for re-do repair is 4 times that. Cardiopulmonary bypass and cardiac arrest are required. The attendant morbidity prolongs hospitalization and recovery. Alfieri simplified mitral repair using an edge-to-edge technique which subsequently has been shown to be effective for multiple etiologies of MR. The MV leaflers are typically brought together by a central suture producing a double orifice MV without stenosis. Umana reported that MR decreased from grade 3.6 +/,0.5 to0.8 +/,0.4 (P < 0.0001)and LV ejection fraction increased from 33 +/,13% to 45 +/,11%(P = 0.0156). In 121 patients, Maisano reported freedom from re-operation of 95 +/,4.8% with up to 6 year follow-up. Oz developed a MV "grasper" that is directly placed via a left ventriculotomy and coapts both leaflets which are then fastened by a graduated spiral screw. An in-vitro model using explanted human valves showed significant reduction in MR and in canine studies, animals followed by serial echo had persistent MV coaptation. At 12 weeks the device was endothelialized. These promising results have paved the way for a percutaneous or minimally invasive off pump mitral repair. Evalve has developed catheter-based technology, which, by apposing the edges of a regurgitant MV, results in edge-to-edge repair. Release of the device is done after echo and fluoroscopic evaluation under normal loading conditions. If the desired effect is not produced the device can be repositioned or retrieved. Animal studies show excellent healing, with incorporation of the device into the leaflets at 6,10 weeks with persistent coaptation. Another percutaneous approach has been to utilize the proximity of the coronary sinus (CS) to the mitral annulus (MA). Placement of a self-compressing device in the CS along the region of the posterior MA has, in canine models, reduced MR and addresses the issues of MA dilation and its contribution to MR. Ongoing studies are underway for both techniques. (J Interven Cardiol 2003;16:93,96) [source] From Disk Devices to Transcatheter Patches: The Evolution of Wireless Heart Defect OcclusionJOURNAL OF INTERVENTIONAL CARDIOLOGY, Issue 2 2001ELEFTHERIOS B. SIDERIS M.D. Since 1988, we have been using double-disk devices with several device generations and improving results. Our current disk device, "The ButtonSeal Centering on Demand Device", is a multipurpose device made of stainless steel and polyurethane. It has shown high occlusion rates and no significant complications in atrial septal defects (ASDs) up to 30 mm in diameter. It can be used according to the ASD anatomy both in large, single defects (centering) and in multiple fenestrations (noncentering). The ButtonSeal shares the same limitations as other disk devices, namely, the possibility of wire-related problems and the need for significant septal rim. The development of wireless balloon-delivered devices and patches addresses these problems and limitations. Both detachable balloon devices and patches were used experimentally in animals and in feasibility studies in humans. The results showed good occlusion rates and lack of wire-related complications. Both methods required a minimal rim and occluded more defects than the disk devices. The transcatheter patch method was safer and had only one disadvantage, which was the need for 48-hour balloon support. (J Interven Cardiol 2001;14:211,214) [source] Freehand iMRI-guided large-gauge core needle biopsy: A new minimally invasive technique for diagnosis of enhancing breast lesionsJOURNAL OF MAGNETIC RESONANCE IMAGING, Issue 6 2001Bruce L. Daniel MD Abstract The lack of reliable methods for minimally invasive biopsy of suspicious enhancing breast lesions has hindered the utilization of contrast-enhanced magnetic resonance imaging (MRI) for the detection and diagnosis of breast cancer. In this study, a freehand method was developed for large-gauge core needle biopsy (LCNB) guided by intraprocedural MRI (iMRI). Twenty-seven lesions in nineteen patients were biopsied using iMRI-guided LCNB without significant complications. Diagnostic tissue was obtained in all cases. Nineteen of the 27 lesions were subsequently surgically excised. Histopathologic analysis confirmed that iMRI-guided LCNB correctly distinguished benign lesions from malignancy in 18 of the 19 lesions. The histology revealed by core biopsy was partially discrepant with surgical biopsy in 2 of the other 19 lesions. Freehand iMRI-guided LCNB of enhancing breast lesions is promising. Larger studies are needed to determine the smallest lesion that can be sampled reliably and to precisely measure the accuracy of iMRI-guided LCNB as a minimally invasive tool to diagnose suspicious lesions found by breast MRI. J. Magn. Reson. Imaging 2001;13:896,902. © 2001 Wiley-Liss, Inc. [source] Safety of cesarean myomectomyJOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH (ELECTRONIC), Issue 5 2009Byung-Joon Park Abstract Aim:, To examine the safety and appropriateness of uterine myomectomy during cesarean section. Methods:, We conducted a retrospective analysis of 97 patients who underwent myomectomy during cesarean section and 60 patients who had uterine myomas, but underwent cesarean section only, between January 2000 and December 2007. Based on the patients' medical records, we conducted an analysis of the characteristics of the uterine myomas, hematologic changes that occurred between the preoperative and postoperative phases, complications, and length of hospital stay. Results:, Changes in hemoglobin values between the preoperative and postoperative phases, indicating the degree of intraoperative bleeding, were evaluated. There were no significant differences between the two groups (cesarean myomectomy group [1.2 ± 1.2 g/dL] versus control group [1.1 ± 1.3 g/dL]). There were no significant differences in the frequency of blood transfusion, incidence of postoperative fever, duration of surgery, and length of hospital stay between the two groups. In patients who received a blood transfusion intraoperatively, the increased amount was added to the hemoglobin changes between the preoperative and postoperative phases (adjusted value). The difference in the adjusted value of hemoglobin change did not reach statistical significance (cesarean myomectomy group [1.3 ± 1.2 g/dL] versus control group [1.2 ± 1.1 g/dL]). When the size of the uterine myoma exceeded 6 cm, the operative time was longer in the cesarean myomectomy group. Conclusion:, Cesarean myomectomy is a safe surgical option with no significant complications if performed by an experienced practitioner. [source] Multiple nodules of the scrotum: histopathological findings and surgical procedure.JOURNAL OF THE EUROPEAN ACADEMY OF DERMATOLOGY & VENEREOLOGY, Issue 6 2006A study of five cases Abstract Background, Multiple nodules of the scrotum are uncommonly reported. Their origin is controversial. Treatment is always surgical but the best procedure is still to be determined. Materials and methods, Five new cases are reported with description of the histopathological findings and surgical procedure. Results, Nodules of the scrotum were more frequent in patients with dark skin suggesting an ethnic susceptibility. No other predisposing factors were noted. Screening for disturbances of phosphate or calcium balance was negative. The following histopathological findings were observed: non-calcified epidermoid cysts (3 patients), calcified epidermoid cysts (1 patient) and nodular calcifications without epithelial or glandular structures (1 patient). Subtotal excisions of the scrotum wall using tumescent anaesthesia were performed in all patients without any significant complications. Cosmetic results were excellent. No new lesions were observed during the 1-year follow-up period. Conclusions, Most cases of multiple nodules of the scrotum are due to non-calcified epidermoid cysts. The term scrotal calcinosis is therefore probably abusively used by many authors. Some cases of nodular calcifications may be due to dystrophic calcification of epidermoid cysts, but calcifications may also occur without any visible epithelial or glandular structure. Subtotal excision of the scrotum wall is a safe and effective surgical procedure to treat multiple nodules of the scrotum. Cosmetic results are excellent and recurrences are rare. [source] Screening for intracranial aneurysms in autosomal dominant polycystic kidney diseaseNEPHROLOGY, Issue 4 2003Review Article SUMMARY: Screening patients with autosomal dominant polycystic kidney disease (ADPKD) for asymptomatic intracranial aneurysms has been proposed as a method of reducing the morbidity and mortality associated with aneurysm rupture. However, recent studies have shown lower spontaneous rupture rates of small aneurysms and higher risks of significant complications with interventions than previously reported. Risk-benefit analysis has not demonstrated any benefit of screening ADPKD patients without a history of subarachnoid haemorrhage (SAH) for intracranial aneurysms, and has suggested that screening might cause harm. [source] The feasibility and reliability of using circular electrode for sphincter of Oddi electromyography in anaesthetised rabbitsNEUROGASTROENTEROLOGY & MOTILITY, Issue 6 2009F. Chen Abstract, Sphincter of Oddi manometry (SOM) is the gold standard for assessing sphincter of Oddi dysfunction (SOD), but is considered a diagnostic sensitivity of 30,80% and associated with significant complications of pancreatitis. Electromyography (EMG) of sphincter of Oddi (SO) using a circular electrode (CE) may be useful in improving diagnostic accuracy and reducing complications. To evaluate the feasibility and reliability of the CE, we record myoelectric activity of SO in rabbits using the CE to compare with the traditional needle electrode (NE). The CE was prepared using a double-channel biogel catheter with two silver rings at the head of the catheter. The CE was then inserted into the lumen of the SO through the duodenal papilla, and myoelectric activity was recorded in the SO in 30 rabbits. An EMG recorded using an NE was performed at the same time, when the SO was in basal state, after injection of cholecystokinin and N-butylscopolamine bromide. Electromyographs recorded by the two methods were then evaluated. Satisfactory SO EMGs were acquired using the CE without any injury. Simultaneous recording revealed a very similar traces and one-to-one correspondence of SO spike bursts (SOSB). Linear regression analysis showed a significant direct correlation between the two methods for SOSB duration and amplitude. The results suggested that CE was comparable with NE in terms of recording efficacy. The CE also has advantages of easy fixation, accurate localisation, broad applicability and ease of achieving satisfactory outcomes without trauma, compared with the NE. [source] Atrial Linear Lesions: Feasibility Using CryoablationPACING AND CLINICAL ELECTROPHYSIOLOGY, Issue 3 2006KLAUS KETTERING Background: Long linear lesions are created in the left atrium to modify the atrial substrate, thereby curing atrial fibrillation. The creation of long linear left atrial lesions using radiofrequency (RF) ablation is time consuming and difficult. Furthermore, it might result in significant complications. Cryoablation might overcome some of the disadvantages of RF ablation. Therefore, the aim of our study was to assess whether the creation of a long linear lesion is possible using cryotherapy. Methods: A right atrial septal linear lesion was created in six pigs (median weight: 50 kg; range: 40,60 kg). The ablation procedure was performed with a 7-F Freezor cryocatheter. The nonfluoroscopic mapping system LocaLisa was used as a navigation tool. At each point, freezing was maintained at the lowest attainable temperature (,75°C) for 4 minutes. The CARTO system was used for the evaluation of the linear lesions. Furthermore, all animals were sacrificed immediately after the ablation procedure and a postmortem examination of the lesions was performed. Additionally, an analysis of the amplitudes of the intracardiac electrograms registered via the ablation catheter was performed before and after the ablation procedure. Results: A right atrial septal linear lesion could be created successfully in all six pigs. For the performance of this ablation line, a median number of 16 cryoapplications (range, 11,26) was necessary. The amplitudes of the intracardiac electrograms registered via the ablation catheter decreased significantly after ablation. The CARTO bipolar voltage map revealed very low potentials along the ablation line and showed a sharply demarcated ablation area at the septum in all pigs. Further analysis of the CARTO map revealed an incomplete conduction block in all cases. Most of the pigs had a small gap close to the fossa ovalis. The postmortem examination of 2,3,5-triphenyl-tetrazolium chloride-stained specimens showed sharply demarcated lesions without any ulcerations. There were no major complications during the procedure. Conclusions: The creation of long linear lesions using cryoablation is feasible and safe. Lesion characteristics are different and more favorable than those created by RF. However, the aim of creating a transmural lesion and a complete conduction block remains an unsolved problem even with current cryoablation techniques. Nevertheless, growing experience and technical improvements might overcome some of the current limitations of this new technique. [source] Periocular Hemangiomas: What Every Physician Should KnowPEDIATRIC DERMATOLOGY, Issue 1 2004Emily J. Ceisler M.D. Most hemangiomas remain asymptomatic and can be managed by close observation; however, immediate treatment is indicated for hemangiomas that may cause significant complications. Periocular hemangiomas warrant close evaluation and early, active treatment of those with the potential to threaten or permanently compromise vision. Herein we review the clinical features of periocular hemangiomas, differential diagnosis, possible ophthalmologic complications and sequelae, and therapeutic modalities. [source] Pediatric cardiothoracic domino transplantation: The psychological costs and benefitsPEDIATRIC TRANSPLANTATION, Issue 5 2004Jo Wray Abstract:, The first domino transplants were carried out in the UK in 1987, since which time 52 such procedures have been carried out involving patients within the paediatric cardiothoracic transplant programmes of Harefield and Great Ormond Street Hospitals. Although there are medical advantages in using domino organs , such as the ability for preoperative cross-matching, the heart not being subjected to the biochemical changes of brain death and less post-transplant coronary artery disease in the recipients of domino hearts compared with the recipients of hearts from cadaveric donors , the psychological sequelae for both donor and recipient have not been previously studied. The objective of this study was to identify the main psychological themes for patients involved in the domino programmes at the two hospitals, focusing on those situations where both patients were cared for in the same tertiary centre. Patients and their families were interviewed during routine outpatient clinic visits. Negative themes identified by patients included anxiety, guilt, resentment and anger if either patient had a poor outcome or suffered significant complications, disappointment and low self-esteem for potential donors whose heart was not used and recipient awareness of donor characteristics. Positive themes included gratefulness, comfort for the recipient that someone had not had to die for them directly and the benefit to the donor of giving their heart to another patient. In conclusion, domino transplantation has many medical advantages but there are significant negative psychological concomitants which need to be addressed within the multi-disciplinary management of these patients. [source] Feasibility and Outcome of Endoscopic Staple-Assisted Esophagodiverticulostomy for Zenker's Diverticulum,THE LARYNGOSCOPE, Issue 9 2001Erica R. Thaler MD Abstract Objectives/Hypothesis Endoscopic staple-assisted esophagodiverticulostomy (ESED) is a newly described method of surgically correcting Zenker's diverticulum. Initial reports on the ease and success of the surgery have been quite enthusiastic, making it seem the procedure of choice. We initiated the procedure in an algorithm of treatment of Zenker's diverticulum, to further explore the feasibility and outcome of this new technique. Study Design This is a case series of 23 patients with Zenker's diverticulum who have undergone surgical repair. For each patient, an attempt at ESED was made. If unsuccessful, an open approach was then taken. Results Seven of 23 patients (30%) were unable to be treated with ESED because of inability to expose the diverticulum or unfavorable anatomy of the diverticulum itself. Of the remaining 16 patients, ESED was successful in resolving the symptoms of diverticulum in 14 (87%). Two patients (13%) were somewhat improved but had persistent dysphagia. No significant complications occurred. All patients resumed oral diet within the first 24 hours after surgery. Conclusion Esophagodiverticulostomy is an excellent method of surgically correcting Zenker's diverticulum in many patients, but anatomical considerations may prevent its use, making open approaches of continued importance in a surgeon's armamentarium. [source] Increasing Use of the Scapula Osteocutaneous Free Flap ,THE LARYNGOSCOPE, Issue 9 2000Sean C. Coleman MD Abstract Objectives To determine the appropriate use of the scapula osteocutaneous free flap (SOFF) and to document donor site morbidity. Study Design Retrospective review and prospective physical therapy evaluation. Methods A computer database of all free flap procedures performed at a single institution was created. Specific clinical and operative details from cases involving a bone flap were extracted from the database. Rates of usage of the various osteocutaneous flaps were compared over four successive 2-year intervals (1992,1999). A single physical therapist performed a structured evaluation of the donor site. Results Overall, 64 bone flap procedures were performed, of which 24 (37.5%) were SOFF procedures. The SOFF utilization has increased from 6.6% to 63.6%, while fibula and iliac crest utilization has fallen significantly. This is in part because of the greater versatility of the SOFF, with the possibility of separate skin paddles and adequate bone length. The mean cutaneous area harvested with the SOFF was 110 cm2 (range, 48,200 cm2) compared with 55.4 cm2 (range, 25,102 cm2) and 77.6 cm2 (range, 50,120 cm2) for the fibula and iliac crest, respectively. Mean bone flap lengths were 8.37, 7.65, and 10.1 cm, respectively, for the SOFF, fibula, and iliac crest. Dual skin paddles were used in 50% of the SOFF procedures versus 2.8% for the fibula flap procedures. There were no significant complications of the donor site in any patient, and there was only one flap failure (4.1%). Related to the SOFF, donor site morbidity was subjectively judged as "mild," for pain, mobility, and strength. There were no complaints of poor appearance of the donor site. Activities of daily living were judged as "not limited" or "limited a little" in the majority of patients. Objective measurements of range of motion revealed an average reduction of 1° to 12° in five different shoulder functions. Elbow and arm ranges of motion were not limited. Strength was minimally reduced in the shoulder, while the arm and forearm showed no reduction in strength. Conclusions The SOFF is a versatile osteocutaneous free flap that can be used for a multitude of reconstructive problems. This and its relative lack of significant donor site morbidity have caused its use to increase significantly. [source] Epidural anaesthesia as a complication of attempted brachial plexus blockade using the posterior approachANAESTHESIA, Issue 6 2006R. S. Gomez Summary We report a case of accidental epidural anaesthesia as a complication of attempted brachial plexus blockade using a posterior approach in a 31-year-old man scheduled to undergo elective shoulder surgery. The block was inserted with the patient in the lateral position before induction of general anaesthesia. On emergence from anaesthesia, the patient could breathe but could not move his arms. He had no pain sensation from the fifth cervical dermatome to the third thoracic dermatome bilaterally; this resolved 8 h after surgery and he was discharged well 2 days later. Although proponents of the posterior approach to the brachial plexus claim that its use is associated with a lower incidence of significant complications, this case proves that the technique is not devoid of potentially serious complications. [source] Randomized Clinical Trial of Propofol With and Without Alfentanil for Deep Procedural Sedation in the Emergency DepartmentACADEMIC EMERGENCY MEDICINE, Issue 9 2009James R. Miner MD Abstract Objectives:, The objectives were to compare the efficacy, occurrence of adverse events, and recovery duration of propofol with and without alfentanil for use in procedural sedation in the emergency department (ED). Methods:, This was a randomized nonblinded prospective trial of adult patients undergoing procedural sedation for painful procedures in the ED. Patients with pain before the procedure were given intravenous (IV) morphine sulfate until their pain was adequately treated at least 20 minutes before starting the procedure. Patients received 1 mg/kg propofol either with or without a supplemental dose of 10 ,g/kg alfentanil for deep procedural sedation. Doses, vital signs, nasal end-tidal CO2 (ETCO2), pulse oximetry, and bispectral electroencephalographic (EEG) analysis scores were recorded. Subclinical respiratory depression was defined as a change in ETCO2 of >10 mmHg, an oxygen saturation of <92% at any time, or an absent ETCO2 waveform at any time. Clinical events related to respiratory depression were noted during the procedure, including the addition of or increase in the flow rate of supplemental oxygen, the use of a bag-valve mask apparatus, airway repositioning, or stimulation to induce breathing. After the procedure, patients were asked if they experienced pain during the procedure or had recall of the procedure. Results:, A total of 150 patients were enrolled; 146 underwent sedation and were included in the analysis. Seventy-four patients received propofol, and 71 received propofol with alfentanil. No clinically significant complications were noted. Subclinical respiratory depression was seen in 24/74 patients in the propofol group and 30/71 patients in the propofol/alfentanil group (effect size = 9.8%, 95% CI = ,5.8% to 25.5%). Clinical signs of respiratory depression included an increase in supplemental oxygen use in 25 of the 74 propofol patients and 31 of the 71 propofol/alfentanil patients (effect size 9.9%, 95% CI = ,5.9% to 25.7%), the use of bag-valve mask apparatus in seven patients in the propofol group and 12 in the propofol/alfentanil group (effect size = 5.6%, 95% CI = ,3.5% to 18.4%), airway repositioning in 13 propofol patients and 20 propofol/alfentanil patients (effect size = 10.6%, 95% CI = ,3.0% to 24.2%), and stimulation to induce breathing in 11 propofol patients and 20 propofol/alfentanil patients (effect size = 13.3%, 95% CI = 0.1% to 26.5%). The total time of the procedure was longer for the alfentanil/propofol group (median = 11 minutes, range = 5,22 minutes) than for the propofol group (median = 9 minutes, range = 1 to 43 minutes; effect size = 1.93 minutes, 95% CI = 0.73 to 2.58, p = 0.02). Pain during the procedure was reported by 10 of the 74 patients in the propofol group and 7 of the 71 patients in the propofol/alfentanil group (effect size = 4.5%, 95% CI = ,6.8% to 14.1%). Recall of some part of the procedure was reported by 12 patients in the propofol group and 9 in the propofol/alfentanil group (effect size = 3.5%, 95% CI = ,7.9% to 15.0%). All procedures were successfully completed. Conclusions:, The use of supplemental alfentanil with propofol for procedural sedation did not result in a difference in reported pain or recall immediately after the procedure. There was an increase in the proportion of patients who required stimulation to induce respiration during the procedure in patients who received propofol with supplemental alfentanil. The addition of supplemental opioid to procedural sedation with propofol does not appear beneficial. [source] MALIGNANT PROGRESSION OF ANAL INTRA-EPITHELIAL NEOPLASIAANZ JOURNAL OF SURGERY, Issue 8 2006Angus J. M. Watson Background: Anal intra-epithelial neoplasia (AIN) is believed to be a precursor to squamous cell carcinoma of the anus. The risk of developing anal cancer in patients with AIN, although known to occur, has been thought to be relatively low. This study reviews our experience with AIN, reviewing the incidence and risk factors for development of invasive malignancy and the outcome of present management strategies. Methods: This study examined a cohort of 72 patients identified from a prospective database with AIN from a single institution between January 1996 and December 2004. A single pathologist examined all pathological specimens. Results: There were 72 patients (52 women) and the median age was 49 years (range, 18,81 years). We identified progression of AIN to invasive malignancy in eight patients despite undergoing surveillance. Regression following treatment or biopsy was seen in 25 patients. Four patients required stomas for incontinence following treatment. Conclusion: This study has shown a high rate of progression to invasive malignancy (11%) with AIN despite surveillance. The patients at risk of developing squamous cell carcinoma were the immunocompromised and those with genital intra-epithelial field change. Treatment of AIN has significant complications and despite treatment, invasive cancers do occur. Decisions made for treatment of AIN can affect treatment choices if invasive malignancy develops. [source] Submental intubation in complex craniomaxillofacial traumaANZ JOURNAL OF SURGERY, Issue 5 2004Charles Davis The submental route for endotracheal intubation is an alternative to nasal intubation or tracheostomy in the surgical management of patients with complex craniomaxillofacial injuries. The critical indication for submental intubation is the requirement for intraoperative maxillomandibular fixation (MMF) in the presence of injuries that preclude nasal intubation and in a situation where a tracheostomy is not otherwise required. MMF to re-establish dental occlusion is essential for a normal functional result in dentate patients with fractures involving alveolar segments of the jaws. However, MMF precludes orotracheal intubation. Nasotracheal intubation is often used but is contraindicated in the presence of skull base fractures and will interfere with the access to certain fracture types. A tracheostomy has a high potential complication rate and in many patients, an alternative to the oral airway is not required beyond the perioperative period. A submental intubation has been used in 11 selected cases amongst 190 consecutively treated patients with craniomaxillofacial trauma over a 3-year period. These cases have been retrospectively reviewed and there have been no significant complications. The indications and technique used are described. Submental intubation is a simple and useful technique with low morbidity in selected cases of craniomaxillofacial trauma and the author's clinical experience with this technique is described. [source] A Novel Approach to Teaching PeriocardiocentesisACADEMIC EMERGENCY MEDICINE, Issue 2009Mara Aloi Pericardiocentesis can be a life-saving intervention but it is associated with significant complications if not performed appropriately. Periocardiocentesis should ideally be done under ultrasound guidance. However, in many community emergency departments (EDs) ultrasound is not routinely available, leaving the ED physician the anatomic approach. Emergency medicine residents need to achieve competence in this procedure using both techniques, but there are limited opportunities for residents to perform this procedure on live patients. Many residency programs teach this procedure using cadaver models. We have devised a model, made with readily available, inexpensive materials, that allows residents to practice pericardiocentesis using both the subxiphoid and parasternal approach in a setting that we feel is more life-like than with that using the dessicated tissue of routine cadaver models. Materials: Two racks of pork or beef ribs, wire, pericardiocentesis tray, Betadine, plastic baggies. The racks of ribs are wired together to make a thorax and are then covered with an opaque covering to simulate skin. One plastic bag is filled with Betadine and then placed within another plastic bag containing water, to simulate pericardial effusion. The bag-within-bag set-up is then secured on the under surface of the thorax. Residents can then practice either the parasternal or subxiphoid approach with the intent of aspirating clear fluid. Aspiration of dark-fluid represents cardiac penetration and is considered an unsuccessful procedure. Bags can be replaced as needed, but based on our experience, approximately 10 attempts were done before any significant leakage occurred. Total cost for the materials was less than $35. [source] Evolution of the complications of laparoscopic hysterectomy after a decade: A follow up of the Monash experienceAUSTRALIAN AND NEW ZEALAND JOURNAL OF OBSTETRICS AND GYNAECOLOGY, Issue 2 2009Jason J. TAN A retrospective review of medical records was performed to assess the incidence and types of significant complications encountered during laparoscopic hysterectomy which would affect the use of a laparoscopic approach versus other routes of hysterectomy. A total of 526 consecutive patients' medical data between January 1994 and August 2007 were reviewed. Two hundred and thirty-two laparoscopic-assisted vaginal hysterectomies and 294 total laparoscopic hysterectomies were performed at Monash Medical Centre, a Melbourne tertiary public hospital, and three Melbourne private hospitals, by or under the supervision of three surgeons. Sixteen significant complications occurred. There were two cases of ureteric fistula, two bladder injuries, two bowel obstructions, four postoperative haematomas, one case of a bladder fistula, four conversions to laparotomy and one superficial epigastric artery injury. Inpatient stay ranged from two to six days. Our complication and inpatient stay rates are consistent with the previously reported rates, although there has been a reduction of incidence of visceral injuries with experience and introduction of new equipment. [source] Complications of laparoscopic hysterectomy: the Monash experienceAUSTRALIAN AND NEW ZEALAND JOURNAL OF OBSTETRICS AND GYNAECOLOGY, Issue 3 2002J Tsaltas ABSTRACT A retrospective review of medical records was performed to assess the incidence and type of significant complications encountered during laparoscopic hysterectomy. Two hundred and sixty-five consecutive patients were reviewed between the years 1994 and August 2001. Two hundred and thirty-two laparoscopic vaginal hysterectomies and 33 total laparoscopic hysterectomies were performed. The operations were performed at Monash Medical Centre, a Melbourne tertiary public hospital, and two Melbourne private hospitals, by three surgeons. Ten significant complications occurred. There were two cases of ureteric fistula, two bladder injuries, two bowel obstructions, two postoperative haematomas, one case of a bladder fistula and one superficial epigastric artery injury. In-patient stay ranged from two to six days. Our complication and in-patient stay rates are consistent with previously reported rates. [source] | ||||||||||||||||||||||||||||