Yazar "Gedik, E." seçeneğine göre listele
Listeleniyor 1 - 6 / 6
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Bispectral Index Monitoring to Guide End-Tidal Isoflurane Concentration at Three Phases of Operation in Patients With End-Stage Liver Disease Undergoing Orthotopic Liver Transplantation(Elsevier Science Inc, 2011) Toprak, H. I.; Sener, A.; Gedik, E.; Ucar, M.; Karahan, K.; Aydogan, M. S.; Ersoy, M. O.It has been shown that anesthetic requirements during liver transplantation are inversely proportional to the degree of hepatic dysfunction. We investigate alterations during the three phases of requirements for intraoperative isoflurane within the target of 40 to 55 Bispectral Index (BIS) values concerning patients with end-stage liver disease who are undergoing liver transplantation. After faculty ethics committee approval, we studied 50 patients of (age range, 18 to 65 years) who were undergoing liver transplantation. After induction, we used isoflurane with air/oxygen (FiO(2) = 0.5%) for anesthestic maintenance. The isoflurane concentration was set within the range of 40 to 55 BIS values. Remifentanil (0.15 mu g/kg/min) was infused for analgesia and cisatracurium was administered via continuous infusion. After anesthetic induction, we inserted arterial, pulmonary artery, and central venous catheters. The heart rate, mean arterial pressure (MAP), mean pulmonary arterial pressure (MPAP), body temperature, BIS values, end-tidal isoflurane concentration (ETiso) and end-tidal carbon dioxide concentration (ETCO(2)) were recorded at 30-minute intervals during the dissection and neohepatic phases, at 15-minute intervals during the anhepatic phase. In addition, we calculated the cardiac index during the three phases. There was no difference in heart rates among the operative phases. In contrast, there were significant changes in MAP, MPAP, BIS, ETCO(2) and body temperature values. However, all of these parameters were in physiological ranges and clinically acceptable. The ETiso values were lowest in the anhepatic phase compared to other phases, but the differences were not clinically important. The ETiso values in the dissection and neohepatic phases were compared with the anhepatic phase higher 5% and 8.6% respectively. During liver transplantation, ETiso requirement for the anhepatic phase was lower compared with the other two phases within the range of 40 to 55 BIS values.Öğe The comparative effects of sevoflurane and propofol for electroconvulsive therapy(Lippincott Williams & Wilkins, 2004) Toprak, H. I.; Gedik, E.; Ozpolat, Z.; Ozturk, E.; Kaya, B.; Ersoy, M. O.[Abstract Not Available]Öğe Density matters most Reply(Wiley-Blackwell Publishing, Inc, 2010) Erdil, F.; Bulut, S.; Demirbilek, S.; Gedik, E.; Gulhas, N.; Ersoy, M. O.[Abstract Not Available]Öğe The effects of intrathecal levobupivacaine and bupivacaine in the elderly(Wiley-Blackwell Publishing, Inc, 2009) Erdil, F.; Bulut, S.; Demirbilek, S.; Gedik, E.; Gulhas, N.; Ersoy, M. O.P>The objective of this study was to compare the block durations and haemodynamic effects associated with intrathecal levobupivacaine or bupivacaine in elderly patients undergoing transurethral prostate surgery. Eighty patients were prospectively randomised to receive plain 1.5 ml levobupivacaine 0.5% (group levobupivacaine) or 1.5 ml plain bupivacaine 0.5% (group bupivacaine) in combination with fentanyl 0.3 ml (15 mu g) for spinal anaesthesia. The time to reach T10 and peak sensory block level, and to maximum motor block were significantly shorter in group bupivacaine compared to group levobupivacaine (p < 0.05). Peak sensory block level was also significantly higher in group bupivacaine. In group bupivacaine, mean arterial pressure was significantly lower than group levobupivacaine, starting from 10 min until 30 min after injection (p < 0.05). Hypotension and nausea were less common in group levobupivacaine than group bupivacaine (p < 0.05). Because of the better haemodynamic stability and fewer side-effects associated with levobupivacaine, it may be preferred for spinal anaesthesia in elderly patients.Öğe Predictors of mortality in septic shock: findings for 57 patients diagnosed on admission to emergency or within 24 hours of admission to intensive care(Sage Publications Ltd, 2012) Yucel, N.; Togal, T.; Gedik, E.; Ertan, C.; Kayabas, U.; Akgun, F. S.; Bayindir, Y.Objective: To identify the risk factors that influence outcome for patients who are diagnosed with septic shock in the emergency department at presentation or within 24 hours after admission to intensive care unit. Methods: A retrospective study of 57 adult patients with septic shock was conducted between March 1, 2006 and August 31, 2009. Results: The patients were 23 males and 34 females with a median age of 67 years (20 to 92 years). Thirty-three (58%) of 57 patients died in hospital and 24 (42%) survived. Multivariate analysis identified low blood pH (OR <0.001; 95% CI <0.001-0.53) and low bicarbonate level (OR 0.81; 95% CI 0.70-0.95) at emergency department or intensive care unit admission as useful predictors of 3-day in-hospital mortality. Low blood pH (OR <0.001; 95% CI <0.001-0.05), low bicarbonate level (OR 0.75; 95% CIs 0.61-0.91), long duration of symptoms (OR 1.49; 95% CI 1.04-2.13), high MEDS score (OR 1.56; 95% CIs 1.06-2.30), and high SOFA score (OR 1.57; 95% CI 1.12-2.20) were risk factors for 14-day in-hospital mortality. Renal failure (OR 7.58; 95% CI 1.28-44.77), lower pulmonary tract infection (OR 3.58; 95% CI 1.10-11.58), high MEDS score (OR 1.42; 95% CI 1.05-1.93) and high APACHE II score (OR 1.34; 95% CI 1.13-1.60) were risk factors for 28-day in-hospital mortality. Conclusions: Several factors signaling poor short-term outcome for this patient group are low blood pH, low serum bicarbonate level, longer duration of symptoms lower respiratory tract infection and renal failure. MEDS and SOFA scores might be helpful in the ED to stratify patients with septic shock according to mortality risk. (Hong Kong j. emerg.med. 2012;19:375-386)Öğe Some Criteria to Attempt Second Side Safely in Planned Bilateral Simultaneous Percutaneous Nephrolithotomy Editorial Comment(Elsevier Science Inc, 2009) Ugras, M. Y.; Gedik, E.; Gunes, A.; Yanik, M.; Soylu, A.; Baydinc, C.Objectives: To determine the validity of some criteria that could guide in the decision to cancel or proceed with the second side of planned bilateral simultaneous percutaneous nephrolithotomy (bsPCNL). Methods: Patients with an indication for bilateral PCNL were enrolled in this study. The operation was stopped at the end of the initial side if operative time was >180 min, the hemoglobin level was <11 g/dL, the hemoglobin decrease was >3 g/dL, the systolic arterial pressure was <100 mm Hg, the arterial oxygen saturation was <95%, the arterial blood pH was <7.35, or the blood sodium was <128 mg/mL. The success and complication rates were compared in patients who underwent second side PCNL (group 1) and those for whom the procedure was stopped after the initial side (group 2). Results: Of 42 planned bsPCNLs, 12 were stopped after the initial side, with the cause being prolonged operative time in 7, hemoglobin decrease in 6, systolic arterial pressure decrease in 2, arterial oxygen saturation decrease in 2, pH decrease in 1, and sodium decrease in 1. Differences in patient characteristics, stone burdens, and overall success and complication rates were insignificant. Transfusion, postoperative urinary infection, and prolonged urine drainage rates were similar, but the total hospitalization time was significantly longer in group 2. One hydrothorax and one renal pelvic perforation occurred in group 2. The need for transfusion correlated positively with the number of nephrostomy tracts in group 2 (r = 0.895, P = .001). No such correlation was found in group 1. Conclusions: Despite the best of intentions, about 30% of anticipated bsPCNL cases might be limited to single-sided PCNL, depending on the intraoperative events. Our criteria seem reasonable, because similar success and complication rates were obtained with bilateral, separate-session PCNL and bsPCNL. These criteria can be considered in the decision making to omit the advantages of a single session for safety.
