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Selected AbstractsFractures and avascular necrosis before and after orthotopic liver transplantation: Long-term follow-up and predictive factors,HEPATOLOGY, Issue 4 2007Maureen M. J. Guichelaar With early posttransplant bone loss, orthotopic liver transplantation (OLT) recipients experience a high rate of fracturing and some avascular necrosis (AVN), but little is known about the incidence of and predictive factors for these skeletal complications. We studied 360 consecutive patients who underwent transplantation for primary biliary cirrhosis (PBC) and primary sclerosing cholangitis (PSC) and assessed both vertebral and nonvertebral (rib, pelvic, and femur) fractures in a protocolized fashion. Before OLT, 20% of the patients had experienced fracturing, and 1.4% of the patients had experienced AVN. Following OLT, there was a sharp increase in fracturing, with a 30% cumulative incidence of fractures at 1 year and 46% at 8 years after transplantation. In contrast to previous studies, there was a similar incidence of posttransplant vertebral and nonvertebral fractures. The greatest risk factors for posttransplant fracturing were pretransplant fracturing and the severity of osteopenia and posttransplant glucocorticoids. Nine percent of the liver recipients experienced AVN after OLT, and this correlated with pretransplant and posttransplant lipid metabolism, bone disease (bone mineral density and fracturing), and posttransplant glucocorticoids. A novel association between cholestasis and AVN was also identified, the mechanism for which is not known. Conclusion: Fortunately, recent years have seen an increase in the bone mass of liver recipients and, along with this, less fracturing and less AVN. Nonetheless, 25% of patients undergoing OLT for chronic cholestatic liver disease still develop de novo fractures after OLT; this situation demands an ongoing search for effective therapeutic agents for these patients. (HEPATOLOGY 2007.) [source] Impact of chronic advanced aortic regurgitation on the perioperative outcome of noncardiac surgeryACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 5 2010H.-C. LAI Background: Whether and how chronic advanced aortic regurgitation (AR) impacts the perioperative outcome of noncardiac surgery remains unclear. Methods: From November 1999 to December 2006, all patients undergoing noncardiac operations and ever examined by echocardiography within the last 6 months were screened. Those with chronic moderate,severe or severe AR were enrolled, provided they were not already trachea-intubated or aortic valve operated, and the surgery was not performed under local anesthesia. Case-matched subjects without significant AR served as controls. The perioperative outcomes of these patients were analyzed, and independent prognostic correlates were investigated by multivariate logistic regression analysis. Results: A total of 167 patients (male 131, mean age of 75 years) complying with the enrollment criteria were studied. Compared with the other 167 case-matched control peers, patients with advanced AR risked potential hazards of serious hemodynamic instability (0.6%) and circulatory collapse (1.2%) during surgery despite the similar incidence of overall cardiac adverse events, and were further distressed with more cardiopulmonary complications (16.2% vs. 5.4%, P=0.003) and in-hospital deaths (9% vs. 1.8%, P=0.008) post-operatively. Multivariate regression analysis confirmed the correlation of advanced AR with perioperative mortality, and identified depressed left ventricular function, renal dysfunction, high surgical risk, and lack of cardiac medication as predictors of in-hospital death. Conclusion: Chronic advanced AR complicates the perioperative outcome of noncardiac surgery as reflected by frequent cardiopulmonary morbidities and in-hospital deaths, especially when coexisting with specified high-risk clinical and surgical characteristics. [source] Two-Year Results of Once-Weekly Administration of Alendronate 70 mg for the Treatment of Postmenopausal OsteoporosisJOURNAL OF BONE AND MINERAL RESEARCH, Issue 11 2002R Rizzoli Abstract The aim of this study was to provide confirmation that once-weekly dosing with 70 mg of alendronate (seven times the daily oral dose) and twice-weekly dosing with 35 mg is equivalent to the 10-mg once-daily regimen and to gain more extensive safety experience with this new dosing regimen. Twelve hundred fifty-eight postmenopausal women (aged 42,95 years) with osteoporosis (bone mineral density [BMD] of either lumbar spine or femoral neck at least 2.5 SDs below peak young adult mean or prior vertebral or hip fracture) were assigned to receive oral once-weekly alendronate, 70 mg (n = 519); twice-weekly alendronate, 35 mg (n = 369); or daily alendronate 10 mg (n = 370) for a total of 2 years of double-blind experience. Mean BMD increases from baseline (95% CI) at 24 months in the once-weekly, twice-weekly, and daily treatment groups, respectively, were 6.8% (6.4, 7.3), 7.0% (6.6, 7.5), and 7.4% (6.9, 7.8) at the lumbar spine and 4.1% (3.8, 4.5), 4.3% (3.9, 4.7), and 4.3% (3.9, 4.7) at the total hip. These increases in BMD as well as the BMD increases at the femoral neck, trochanter, and total body and the reductions of biochemical markers of bone resorption (urinary cross-linked N-telopeptides of type I collagen [NTx]) and bone formation (serum bone-specific alkaline phosphatase [BSAP]) were similar for the three dosing regimens. All treatment regimens were well tolerated with a similar incidence of upper gastrointestinal (GI) adverse experiences. The incidence rates of clinical fractures, captured as adverse experiences, were similar among the groups. The 2-year results confirm the conclusion reached after 1 year that once-weekly alendronate is therapeutically equivalent to daily dosing, providing patients with a more convenient dosing option that may potentially enhance adherence to therapy. [source] Clinical trial: lubiprostone in patients with constipation-associated irritable bowel syndrome , results of two randomized, placebo-controlled studiesALIMENTARY PHARMACOLOGY & THERAPEUTICS, Issue 3 2009D. A. DROSSMAN Summary Background, Effective treatments for irritable bowel syndrome with constipation (IBS-C) are lacking. Aim, To assess the efficacy and safety of lubiprostone in IBS-C. Methods, A combined analysis was performed among 1171 patients with a Rome II diagnosis of IBS-C in two phase-3 randomized trials of lubiprostone 8 mcg vs. placebo twice daily for 12 weeks. Using a balanced seven-point Likert scale ranging from significantly relieved (+3), to significantly worse (,3), patients responded on their electronic diary to the question: ,How would you rate your relief of IBS symptoms over the past week compared to how you felt before you entered the study?'. The primary efficacy endpoint was the percentage of overall responders. Results, Using an intent-to-treat analysis with last observation carried forward, a significantly higher percentage of lubiprostone-treated patients were considered overall responders compared with those treated with placebo (17.9% vs. 10.1%, P = 0.001). Patients treated with lubiprostone reported a similar incidence of adverse events to those treated with placebo. Conclusions, The percentage of overall responders based on patient-rated assessments of IBS-C symptoms was significantly improved in patients treated with lubiprostone 8 mcg twice daily compared to those treated with placebo. Lubiprostone was well tolerated with a favourable safety profile. [source] Cognitive dysfunction 1,2 years after non-cardiac surgery in the elderlyACTA ANAESTHESIOLOGICA SCANDINAVICA, Issue 10 2000H. Abildstrom Background: Postoperative cognitive dysfunction (POCD) is a well-recognised complication of cardiac surgery, but evidence of POCD after general surgery has been lacking. We recently showed that POCD was present in 9.9% of elderly patients 3 months after major non-cardiac surgery. The aim of the present study was to investigate whether POCD persists for 1,2 years after operation. Methods: A total of 336 elderly patients (median age 69 years, range 60,86) was studied after major surgery under general anesthesia. Psychometric testing was performed before surgery and at a median of 7, 98 and 532 days postoperatively using a neuropsychological test battery with 7 subtests. A control group of 47 non-hospitalised volunteers of similar age were tested with the test battery at the same intervals. Results: 1,2 years after surgery, 35 out of 336 patients (10.4%, CI: 7.2,13.7%) had cognitive dysfunction. Three patients had POCD at all three postoperative test sessions (0.9%). From our definition of POCD, there is only a 1:64 000 likelihood that a single subject would have POCD at all three test points by chance. Logistic regression analysis identified age, early POCD, and infection within the first three postoperative months as significant risk factors for long-term cognitive dysfunction. Five of 47 normal controls fulfilled the criteria for cognitive dysfunction 1,2 years after initial testing (10.6%, CI: 1.8,19.4%), i.e. a similar incidence of age-related cognitive impairment as among patients. Conclusion: POCD is a reversible condition in the majority of cases but may persist in approximately 1% of patients. [source] Isoflurane is associated with a similar incidence of emergence agitation/delirium as sevoflurane in young children , a randomized controlled studyPEDIATRIC ANESTHESIA, Issue 1 2007ROLAND RICHARD MEYER MD Summary Background:, Children may be agitated or even delirious especially when recovering from general anesthesia using volatile anesthetics. Many trials have focused on the newer agents sevoflurane and desflurane but for the widely used isoflurane little is known about its potential to generate agitation. We investigated the emergence characteristics of small children after sevoflurane or isoflurane with caudal anesthesia for postoperative pain control. Methods:, After institutional approval and parental consent, anesthesia was randomly performed with sevoflurane (n = 30) or isoflurane (n = 29) in children at the age of 3.8 ± 1.8 years during surgical interventions on the lower part of the body. After induction, all children received caudal anesthesia with bupivacaine (0.25%, 0.8 ml·kg,1). Postoperatively, the incidences of emergence agitation (EA) and emergence delirium (ED) were measured by a blinded observer using a ten point scale (TPS; EA = TPS > 5 ED = TPS > 7) as well as vigilance, nausea/vomiting and shivering. Results:, The two groups were comparable with respect to demographic data, duration of surgery and duration of anesthesia. There were also no differences in the period of time from the end of surgery until extubation, duration of stay in the PACU, postoperative vigilance and vegetative parameters. Incidence of EA was 30% (9/30) for sevoflurane and 34% (10/29) for isoflurane during the first 60 min in the PACU (P = 0.785). Likewise, the incidence of ED was not different between the groups (20% and 24%, respectively). Conclusions:, In our randomized controlled study, we found no difference in the incidence of EA or ED between sevoflurane and isoflurane. Therefore, the decision to use one or the other should not be based upon the incidence of EA or ED. [source] Biphasic insulin aspart vs. human insulin in adolescents with type 1 diabetes on multiple daily insulin injectionsPEDIATRIC DIABETES, Issue 1 2006Henrik Mortensen Abstract:, The aim was to compare clinical efficacy and safety of two treatment regimens: biphasic insulin aspart (BIAsp) injected at all three meals plus neutral protamine Hagedorn (NPH) insulin at bedtime vs. a human insulin regimen, premixed human insulin at breakfast and soluble insulin at lunch and dinner and NPH at bedtime. A total of 167 adolescents (80 males and 87 females) with type 1 diabetes was included in the trial (multinational, randomized, open-label, and parallel group). Each subject received either of two treatment regimens for a 4-month period. BIAsp was injected immediately before main meals, human insulin products 30 min before meals, and NPH at night. Glycemic control was monitored by eight-point evaluations (after 6 and 16 wks) and hemoglobin A1c (HbA1c) (after 2, 6, and 16 wks). Safety evaluations included adverse events and incidence of hypoglycemic episodes. HbA1c (mean ± SD) after 4 months on BIAsp (9.39 ± 0.14) was not significantly different from that with human insulin (9.30 ± 0.15). The average postprandial glucose increment in the BIAsp group was about half the increment in the human insulin group; the difference not statistically significant. The body mass index (BMI) increased in both groups, but significantly (p = 0.005) less in the BIAsp group. However, in males on BIAsp, the BMI decreased compared with those on human insulin (p = 0.007). No significant group differences were found for the rate of hypoglycemic episodes. We concluded that the BIAsp regimen was associated with similar glycemic control and similar incidence of hypoglycemic episodes as human insulin. However, the BIAsp regimen caused a significantly smaller increase in BMI, particularly in males, compared with the human insulin regimen. [source] Early Withdrawal of Calcineurin Inhibitors and Everolimus Monotherapy in de novo Liver Transplant Recipients Preserves Renal FunctionAMERICAN JOURNAL OF TRANSPLANTATION, Issue 10 2010M. Masetti We designed a randomized trial to assess whether the early withdrawal of cyclosporine (CsA) followed by the initiation of everolimus (Evr) monotherapy in de novo liver transplantation (LT) patients would result in superior renal function compared to a CsA-based immunosuppression protocol. All patients were treated with CsA for the first 10 days and then randomized to receive Evr in combination with CsA up to day 30, then either continued on Evr monotherapy (Evr group) or maintained on CsA with/without mycophenolate mofetil (CsA group) in case of chronic kidney disease (CKD). Seventy-eight patients were randomized (Evr n = 52; CsA n = 26). The 1-year freedom from efficacy failure in Evr group was 75% versus 69.2% in CsA group, p = 0.36. There was no statistically significant difference in patient survival between the two groups. Mean modification of diet in renal disease (MDRD) was significantly better in the Evr group at 12 months (87.7 ± 26.1 vs. 59.9 ± 12.6 mL/min; p < 0.001). The incidence of CKD stage ,3 (estimated glomerular filtration rate <60 mL/min) was higher in the CsA group at 1 year (52.2% vs. 15.4%, p = 0.005). The results indicate that early withdrawal of CsA followed by Evr monotherapy in de novo LT patients is associated with an improvement in renal function, with a similar incidence of rejection and major complications. [source] Stroke and cancer: a reviewACTA NEUROLOGICA SCANDINAVICA, Issue 1 2009W. Grisold Stroke is a disabling disease and can add to the burden of patients already suffering from cancer. Several major mechanisms of stroke exist in cancer patients, which can be directly tumour related, because of coagulation disorders, infections, and therapy related. Stroke can also occur as the first sign of cancer, or lead to its detection. The classical literature suggests that stroke occurs more frequently in cancer patients than in the average population. More recent studies report a very similar incidence between cancer and non-cancer patients. However, there are several cancer-specific types and causes of stroke in cancer patients, which need to be considered in each patient. This review classifies stroke into ischaemic, haemorrhagic, cerebral venous thrombosis and other rarer types of cerebrovascular disease. Its aim is to identify the types of stroke most frequently associated with cancer, and give a practical view on the most common and most specific types of stroke. The diagnosis of the cause of stroke in cancer patients is crucial for treatment and prevention. Management of different stroke types will be briefly discussed. [source] Effect of nonionic radiocontrast agents on the occurrence of contrast-induced nephropathy in patients with mild-moderate chronic renal insufficiency: Pooled analysis of the randomized trialsCATHETERIZATION AND CARDIOVASCULAR INTERVENTIONS, Issue 3 2005Samin K. Sharma MD Abstract Contrast-induced nephropathy (CIN) is associated with high morbidity and mortality. The recent literature contains numerous clinical trials with similar design, endpoints, and patient populations, describing the nephrotoxic effects of various contrast agents, which are higher with ionic vs. nonionic contrast agents. The difference in the incidence of CIN with nonionic contrast agents may be due to the number of benzene rings (monomer vs. dimer), iodine content, osmolality, and viscosity of the individual contrast agents. We evaluated the recently published data from clinical studies with nonionic iodinated contrast agents in patients with preexisting chronic renal insufficiency (CRI) and report the results of pooled analysis of data from recent prospective independent studies of CIN with various nonionic contrast agents. Review of the recent literature revealed that the CIN incidence varies across the studies reviewed and the contrast agents used. The highest incidence of CIN was observed in studies using iohexol or ioxilan. Results of the pooled analysis of nonionic contrast agents (with more than one randomized study) showed a similar incidence of CIN after iodixanol and iopamidol in patients with preexisting CRI, while both agents showed a significantly lower incidence of CIN compared to iohexol. Since iodixanol is more expensive than iopamidol, this observation may be clinically relevant. © 2005 Wiley-Liss, Inc. [source] Liver transplantation in patients aged 65 and over: a case,control studyCLINICAL TRANSPLANTATION, Issue 5 2010R. Montalti Montalti R, Rompianesi G, Di Benedetto F, Ballarin R, Gerring RC, Busani S, De Pietri L, De Ruvo N, Iemmolo RM, Guerrini GP, Smerieri N, Gerunda GE. Liver transplantation in patients aged 65 and over: a case,control study. Clin Transplant 2010 DOI: 10.1111/j.1399-0012.2010.01230.x. © 2010 John Wiley & Sons A/S. Abstract:, Introduction:, The average age of patients undergoing liver transplantation (LT) is consistently increasing. The aim of this case,control study is to evaluate survival and outcome of patients ,65 yr compared to younger patients undergoing LT. Materials and methods:, From 10/00 to 4/08 we performed 330 primary LT, 31 (9.4%) of these were in patients aged 65,70. Following a case,control approach, we compared these patients with 31 patients aged between 41 and 64 yr and matched according to sex, LT indication, viral status, cadaveric/living donor, LT timing, and Model for End-Stage Liver Disease (MELD) score. Results:, There were no statistically significant differences in demographic and surgical donor characteristics. The mean MELD score was under 18 in both groups. Post-LT complications occurred with a similar incidence in the two groups. one-, three-, and five-yr survival was 83.9%, 80.6%, and 80.6%, respectively, for the elderly group, and 80.6%, 73.8%, and 73.8%, respectively, for the young group (p = 0.61). Discussion:, Patients aged between 65 and 70 with low MELD score who undergo LT have the same short- and middle-term survival expectancy, morbidity, and outcome quality as younger patients with the same indication and same pre-LT pathology severity, whatever they might be. Thus, chronological age alone should not deter LT workup in patients >65 and <70. [source] |