Preinductive use of clonidine and ketamine improves recovery and reduces postoperative pain after bariatric surgery

Background: In obese patients, concomitant use of clonidine and ketamine might be suitable to reduce the doses and minimize the undesired side effects of anesthetic and analgesic drugs. In this study, we evaluated the perioperative effects of administration of clonidine and ketamine in morbidly obese patients undergoing weight loss surgery at a university hospital in Rome, Italy. Methods: A total of 50 morbidly obese patients undergoing open biliopancreatic diversion for weight loss surgery were enrolled. The patients were randomly allocated into a study group (n = 23) receiving a slow infusion of ketamine-clonidine before anesthesia induction and a control group (n = 27) who received standard anesthesia. The hemodynamic profile, intraoperative end-tidal sevoflurane and opioid consumption, tracheal extubation time, Aldrete score, postoperative pain assessment by visual analog scale, and analgesic requirements were recorded. Results: The patients in the study group required less end-tidal sevoflurane, lower total doses of fentanyl (3.8 \uc2\ub1 0.3 \uce\ub3/kg actual body weight versus 5.0 \uc2\ub1 0.2 \uce\ub3/kg actual body weight, respectively; P <.05) and had a shorter time to extubation (15.1 \uc2\ub1 5 min versus 28.2 \uc2\ub1 6 min, P <.05). The Aldrete score was significantly better in the postanesthesia care unit in the study group. The study group consumed less tramadol than did the control group (138 \uc2\ub1 57 mg versus 252 \uc2\ub1 78 mg, P <.05) and had a lower visual analog scale score postoperatively during the first 6 hours. Conclusion: The preoperative administration of low doses of ketamine and clonidine at induction appears to provide early extubation and diminished postoperative analgesic requirements in morbidly obese patients undergoing open bariatric surgery. \uc2\ua9 2009 American Society for Metabolic and Bariatric Surgery

Polymyxin-B hemoperfusion in septic patients: analysis of a multicenter registry

Background: In 2010, the EUPHAS 2 collaborative group created a registry with the purpose of recording data from critically ill patients suffering from severe sepsis and septic shock treated with polymyxin-B hemoperfusion (PMX-HP) for endotoxin removal. The aim of the registry was to verify the application of PMX-HP in the daily clinical practice. Methods: The EUPHAS 2 registry involved 57 centers between January 2010 and December 2014, collecting retrospective data of 357 patients (297 in Europe and 60 in Asia) suffering from severe sepsis and septic shock caused by proved or suspected infection related to Gram negative bacteria. All patients received atleast one cycle of extracorporeal endotoxin removal by PMX-HP. Results: Septic shock was diagnosed in 305 (85.4&nbsp;%) patients. The most common source of infection was abdominal (44.0&nbsp;%) followed by pulmonary (17.6&nbsp;%). Gram negative bacteria represented 60.6&nbsp;% of the pathogens responsible of infection. After 72&nbsp;h from the first cycle of PMX-HP, some of the SOFA score components significantly improved with respect to baseline: cardiovascular (2.16&nbsp;\ub1&nbsp;1.77 from 3.32&nbsp;\ub1&nbsp;1.29, p&nbsp;&lt;&nbsp;0.0001), respiratory (1.95&nbsp;\ub1&nbsp;0.95 from 2.40&nbsp;\ub1&nbsp;1.06, p&nbsp;&lt;&nbsp;0.001) and renal (1.84&nbsp;\ub1&nbsp;1.77 from 2.23&nbsp;\ub1&nbsp;1.62, p&nbsp;=&nbsp;0.013). Overall 28-day survival rate was 54.5&nbsp;% (60.4&nbsp;% in abdominal and 47.5&nbsp;% in pulmonary infection). Patients with abdominal infection treated with PMX-HP within 24&nbsp;h from the diagnosis of septic shock had a 28-day survival rate of 64.5&nbsp;%. Patients showing a significantly cardiovascular improvement after PMX-HP had a 28-survival rate of 75&nbsp;% in comparison to the 39&nbsp;% of patients who did not (p&nbsp;&lt;&nbsp;0.001). Cox regression analysis found the variation of cardiovascular, respiratory and coagulation SOFA to be independent covariates for 28-day survival. In European patients were observed a higher 28-day (58.8 vs. 34.5&nbsp;%, p&nbsp;=&nbsp;0.003), ICU (59 vs. 36.7&nbsp;%, p&nbsp;=&nbsp;0.006) and hospital survival rate (53.2 vs. 35&nbsp;%, p&nbsp;=&nbsp;0.02) than in Asian patients. However, the two populations were highly heterogeneous in terms of source of infection and severity scores at admission. Conclusion: The EUPHAS 2 is the largest registry conducted outside Japan on the clinical use of PMX-HP in septic patients. Data analysis confirmed the feasibility of PMX-HP to treat septic patients in daily clinical practice, showing clinical benefits associated with endotoxin removal without significant adverse events related to the extracorporeal technique