Home About us Contact
|
Home About us Contact | ||
|
|
||
Operative Parameters (operative + parameter)
Selected AbstractsLaparoscopic radical prostatectomy: Transfer validityINTERNATIONAL JOURNAL OF UROLOGY, Issue 5 2010Tibet Erdogru Objectives: The impact of a formal fellowship training program on the independent practice of the trainees (i.e. transfer validity) has not been evaluated. We analyzed the transfer validity of a structured curriculum in an in-door as well as an out-door setting. Methods: After completing their training, two fourth generation laparoscopic surgeons who started at the same time compared operative parameters and oncological outcomes in their independent practice, prospectively analyzing the next 100 patients in each. One surgeon continued laparoscopic radical prostatectomy (LRP) in the same center of excellence (Group-In), whereas the other implemented the procedure in a separate academic center (Group-Out). Results: The demographics for both groups (Group-In vs Group-Out) were similar regarding age, prostate volume and preoperative prostate-specific antigen levels. Mean operation times (214.8 vs 224.2 min; P = 0.494) and estimated blood loss (472.4 vs 402.6 mL; P = 0.109) did not differ significantly in both groups as well as complication rate (20 vs 24%), median catheter time (8 vs 8.5 days) and continence rates at 12 months (95 vs 95.5%). According to the pathological stages, the rates of positive surgical margins were similar for pT2 (3.2 vs 4.3%) and pT3 (42.8 vs 45.2%), respectively. Conclusions: With a well designed, long-term preclinical and clinical fellowship training program, LRP techniques can be efficiently transferred from the center of excellence to other centers with no significant impact on surgical, functional and oncological outcomes. [source] Indications for laparoscopic adrenalectomy for non-functional adrenal tumor with hypertension: Usefulness of adrenocortical scintigraphyINTERNATIONAL JOURNAL OF UROLOGY, Issue 6 2006HIROFUMI IZAKI Aim:, Laparoscopic adrenalectomy is currently indicated for biochemically and clinically functional adrenal tumors and potentially malignant tumors of the adrenal glands. Non-functional adenomas greater than 5 cm in diameter of the adrenal gland are generally considered to represent potentially malignant tumors. The present study shows indications of laparoscopic adrenalectomy for non-functional adrenal tumors with hypertension in a retrospective fashion. Methods:, Between 1994 and 2004, 110 laparoscopic adrenalectomies were performed at Tokushima University Hospital. All 110 patients underwent detailed endocrinological examination before surgery. Medical and operative records of these 110 patients (57 men, 53 women), including operative parameters, histopathological findings and pre- and postoperative hypertension, were reviewed. Forty-five patients underwent laparoscopic adrenalectomy for non-functional adrenal tumors, and [131I]6,-iodomethyl-19-norcholest-5(10)-en-3,-ol (NP-59) scintigraphy was performed for patients with preoperative hypertension. Results:, Mean patient age was 55.0 years (range, 22,77 years). Mean maximum tumor diameter was 42 mm (range, 20,105 mm). All adrenal tumors were removed successfully by laparoscopic surgery. Hypertension was postoperatively improved in seven of the 11 patients with preoperative hypertension, without subclinical Cushing syndrome. Importantly, all patients who improved hypertension after adrenalectomy displayed strong accumulation in adrenal tumors with visualization of the contralateral gland on NP-59 scintigraphy. Conversely, blood pressure did not improve in four patients for whom scintigraphy yielded negative results. Conclusions:, The indication of laparoscopic adrenalectomy for non-functional adrenal tumors is generally considered for lesions more than 5 cm diameter. However, the present study suggests that laparoscopic surgery should be considered even in patients with tumors less than 5 cm in diameter, if both hypertension and accumulation in tumors on NP-59 scintigraphy are present. [source] Robot Assisted Laparoscopic Pyeloplasty: a review of the current statusTHE INTERNATIONAL JOURNAL OF MEDICAL ROBOTICS AND COMPUTER ASSISTED SURGERY, Issue 1 2007Ketul K. Shah Abstract Background Over the last decade minimally invasive endourologic and laparoscopic techniques have become the first line therapies for primary UPJ obstruction. Robotic assisted laparoscopic pyeloplasty for the correction of ureteropelvic junction has achieved outcomes comparable to those of open and laparoscopic techniques. We present a comprehensive review of the current literature of robotic assisted pyeloplasty. Methods We performed a systemic review of all the current literature examining demographic data, intra operative parameters and post-operative outcomes. Results In most published series in the literature, the operative time ranges from 122 to 300 minutes and the operative time ranges from 27 to 77 ml. Most series considers subjective improvement in the symptoms and improved drainage on post-operative diuretic renal scan as the measures of success. The reported success rates vary from 89 to 100%. Conclusion Robotic pyeloplasty is a feasible alternative to laparoscopic pyeloplasty. Short-term results indicate equivalent outcomes with the laparoscopic procedure. Long-term studies are still needed to compare robotic and open pyeloplasty outcomes, and to define the role of robotic pyeloplasty in a cost prohibitive health care system. Copyright © 2007 John Wiley & Sons, Ltd. [source] QUADRAPOD MESH FOR POSTERIOR WALL RECONSTRUCTION IN ADULT INGUINAL HERNIASANZ JOURNAL OF SURGERY, Issue 3 2008Shih-Chung Wu Inguinal hernia repairs are the most frequently carried out operations worldwide, and open-mesh herniorrhaphies have gained wide acceptance for advantages of little tension, less pain and lower recurrence rates. Even so, potential drawbacks of original open-mesh repairs exist, and we accordingly make some modifications, suggesting a new ,quadrapod' marlex mesh as an alternative. From July 2002 to March 2004, we carried out 288 consecutive inguinal hernia repairs using quadrapod mesh in 273 patients, all of them were male and aged older than 35 years. Patient demographics, operative parameters, morbidity and outcomes were collected in detail. After surgery, patients were followed up every 6 months at one surgeon's clinic and any major abnormality was recorded. Mean age of the 273 patients was 58.7 years. Twenty-eight patients had recurrent hernias and 15 bilateral hernias. Mean surgical duration was 50.7 min. One patient suffered from major wound infection and needed prolonged hospitalization for parenteral antibiotics. Owing to old age and benign prostatic hyperplasia, 11 patients receiving spinal anaesthesia had temporary postoperative urine retention and needed short-term urinary catheter insertion. Most patients were discharged 1 day following surgery. Acute wound pain generally improved within days, and no patients complained of chronic pain or debility necessitating special interventions. With a mean follow up of 40.7 months, no case of recurrent herniation was detected to date. Open-mesh herniorrhaphy using quadrapod mesh provides a cheap, feasible and effective alternative choice in centres with limited resources. Preliminary results are encouraging, and a formal prospective study may be warranted. [source] Is it necessary to catheterise the bladder routinely before gynaecological laparoscopic surgery?AUSTRALIAN AND NEW ZEALAND JOURNAL OF OBSTETRICS AND GYNAECOLOGY, Issue 5 2005Kwok Keung TANG Abstract Background:, Catheterisation of the bladder was routinely performed before gynaecological laparoscopy, but such an established practice is not evidence based and may lead to an increase in postoperative urinary symptoms and urinary tract infection. Aims:, To compare routine urethral catheterisation and non-catheterisation before laparoscopic surgery with respect to bladder injury, postoperative urinary symptoms and urinary tract infection (UTI). Methods:, This was a prospective, double blind randomised study. All women undergoing gynaecological laparoscopy, both elective and emergency, were invited to participate in the study. Cases involving bladder dissection, second trimester pregnancy and those who could not void preoperatively were excluded. Patients were randomly allocated to catheterise group and non-catheterise group. Requirement of catheterisation in the non-catheterise group, bladder injury, postoperative catheterisation, urinary symptoms and UTI were studied. Results:, Two hundrend and seventy-nine women were recruited of whom 262 were suitable for final analysis. Each group contained 131 cases. Patient characteristics and operative parameters were comparable in both groups. There was no bladder injury. Four percent of the women in the non-catheterise group needed catheterisation and catheterisation was significantly associated with surgery longer than 90 min (P < 0.001). Postoperative UTI was insignificantly reduced in the non-catheterised group. When postoperative urinary symptoms and urinary tract infections were studied as a composite outcome, they were statistically significantly reduced in the non-catheterise group (P = 0.017). Conclusions:, The policy of non-catheterisation before gynaecological laparoscopic surgery is safe and feasible. Although the reduction in UTI is insignificant, the overall postoperative urinary problems (urinary symptoms or UTI) are reduced significantly. [source] Electrocarboxylation of Benzyl Halides through Redox Catalysis on the Preparative ScaleCHEMISTRY - A EUROPEAN JOURNAL, Issue 28 2006Onofrio Scialdone Dr. Abstract The electrocarboxylation of benzyl halides to the corresponding carboxylic acids through homogeneous charge-transfer catalysis was investigated both theoretically and experimentally to determine the influence of the operative parameters on the yield of the process and on the catalyst consumption. Theoretical considerations, based on fast kinetics of redox catalysis, were confirmed by the electrocarboxylation of 1-phenyl-1-chloroethane catalyzed by 1,3-benzenedicarboxylic acid dimethyl ester performed at a carbon cathode under different operative conditions. We obtained high yields of the target carboxylic acid and experienced a low catalyst consumption by operating with optimized [RX]bulk/[CO2]bulk and [RX]bulk/[catalyst] ratios. [source] | ||||||||||