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| 1 | Protective effects of intravenous anesthetics on kidney tissue in obstructive jaundice显示文摘AIM:To evaluate the protective effects on kidney tissue of frequently used intravenous anesthetics(ketamine,propofol,thiopental,and fentanyl)in rats with obstructive jaundice.METHODS:There is an increased incidence of postoperative acute renal failure in patients with obstructive jaundice.Thirty-two Wistar-albino rats were randomly divided into four equal groups.Laparatomy was performed on each animal in the four groups and common bile ducts were ligated and severed on day 0.After 7 d,laparotomy was again performed using ketamine,propofol,thiopental,or fentanyl anesthesia whose antioxidative properties are well known in oxidative stress in a rat liver model of obstructive jaundice.After 2 h,the rats were sacrificed.Renal tissue specimens were analyzed for catalase,superoxide dismutase and malondialdehyde enzymes activities.All values are expressed as the mean±SD.P values less than 0.05 were considered statistically significant.RESULTS:All animals survived without complications until the end of the study.Enlargement in the bile duct and obstructive jaundice were observed in all rats.Catalase was found to be significantly lower in the fentanyl group than in the ketamine(P=0.039),propofol(P=0.012),and thiopental(P=0.001)groups.Superoxide dismutase activities were similar in all groups(P>0.05).Malondialdehyde was found to be significantly lower in the ketamine group than in the propofol(P=0.028),thiopental(P=0.002)and fentanyl(P=0.005)groups.Malondialdehyde was also lower in the fentanyl group than in the thiopental group(P=0.001).The results showed that obstructive jaundice sensitizes renal tissue to damage under the different anesthetics.CONCLUSION:Among the agents tested,ketamine and propofol generated the least amount of oxidative stres on renal tissues in this rat model of obstructive jaundice created by common bile duct ligation.The importance of free radical injury in renal tissue in obstructive jaundice under different intravenous anesthetics during hepatobiliary and liver transplant surgery should be considered for prevention of postoperative acute renal failure. | Sinan Hatipoglu Huseyin Yildiz Ertan Bulbuloglu Ismail Coskuner Ergul Belge Kurutas Filiz Hatipoglu Harun Ciralik Mehmet Sait Berhuni | 2014 | World Journal of Gastroenterology2014，20，12： | 9 |
| 2 | Acute right lower abdominal pain in women of reproductive age:Clinical clues显示文摘AIM:To study possible gynecological organ pathologies in the differential diagnosis of acute right lower abdominal pain in patients of reproductive age.METHODS:Following Clinical Trials Ethical Committee approval,the retrospective data consisting of physical examination and laboratory findings in 290 patients with sudden onset right lower abdominal pain who used the emergency surgery service between April2009 and September 2013,and underwent surgery and general anesthesia with a diagnosis of acute appendicitis were collated.RESULTS:Total data on 290 patients were obtained.Two hundred and twenty-four(77.2%)patients had acute appendicitis,whereas 29(10%)had perforated appendicitis and 37(12.8%)had gynecological organ pathologies.Of the latter,21(7.2%)had ovarian cyst rupture,12(4.2%)had corpus hemorrhagicum cyst rupture and 4(1.4%)had adnexal torsion.Defense,Rovsing’s sign,increased body temperature and increased leukocyte count were found to be statistically significant in the differential diagnosis of acute appendicitis and gynecological organ pathologies.CONCLUSION:Gynecological pathologies in women of reproductive age are misleading in the diagnosis of acute appendicitis. | Sinan Hatipoglu Filiz Hatipoglu Ruslan Abdullayev | 2014 | World Journal of Gastroenterology2014，20，14： | 8 |
| 3 | Effect of laparoscopic abdominal surgery on splanchnic circulation: Historical developments显示文摘With the developments in medical technology and increased surgical experience,advanced laparoscopic surgical procedures are performed successfully.Laproscopic abdominal surgery is one of the best examples of advanced laparoscopic surgery(LS).Today,laparoscopic abdominal surgery in general surgery clinics is the basis of all abdominal surgical interventions.Laparo scopica bdomina l surgery is associated with systemic and splanchnic hemodynamic alterations.Inadequate splanchnic perfusion in critically ill patients is associated with increased morbidity and mortality.The underlying pathophysiological mechanisms are still not well understood.With experience and with an increase inthe number and diversity of the resulting data,the pathophysiology of laparoscopic abdominal surgery is now better understood.The normal physiology and pathophysiology of local and systemic effects of laparoscopic abdominal surgery is extremely important for safe and effective LS.Future research projects should focus on the interplay between the physiological regulatory mechanisms in the splanchnic circulation(SC),organs,and diseases.In this review,we discuss the effects of laparoscopic abdominal surgery on the SC. | Sinan Hatipoglu Sami Akbulut Filiz Hatipoglu Ruslan Abdullayev | 2014 | World Journal of Gastroenterology2014，20，48： | 5 |
| 4 | Pancreatic extragastrointestinal stromal tumor:A case report and comprehensive literature review显示文摘AIM: To provide an overview of the literature on pan-creatic extragastrointestinal stromal tumors(EGISTs).METHODS: We report a case of pancreatic EGIST and review published studies on pancreatic EGIST ac-cessed via the PubMed, MEDlInE, Google Scholar, and Google databases. The keywords used were 'pancreas and GIST', 'pancreas and extra GIST', 'pancreas and gastrointestinal stromal tumor', and 'pancreas and ex-tragastrointestinal stromal tumor'. literature reviews and/or duplicate studies were excluded. The search included articles published in the English language be-tween January 1, 2000 and May 15, 2014.RESULTS: From our literature survey, 30 manuscripts on pancreatic EGISTs were considered, of which 27met the search criteria and three were excluded. The studies involved 30 patients(15 men, 15 women) with a mean age of 55.3 ± 14.3 years(range 30-84 years). The mean age of the male patients was 50.8 ± 13.7 years(range 30-84 years); that of the female patients was 59.9 ± 13.3 years(range 38-81 years). Tumor dimensions were obtained for 28 cases(mean 114.4 ± 78.6 mm; range 20-350 mm). Tumors were diagnosed incidentally in 23.3% of patients; abdominal discomfort and weight loss were the major complaints in symp-tomatic patients. Risk of aggressive behavior according to Fletcher criteria was determined in 25 of 30 patients(68%: high risk, 28%: intermediate risk, 4%: low risk). Histopathological examination revealed the presence of spindle cells in 96.1% of cases; CD117 and CD34 were present immunohistochemically in 96.6% and 84% of patients, respectively. The most common surgical pro-cedures were distal pancreatectomy with splenectomy(n = 9) and pancreaticoduodenectomy(n = 7). The to-tal follow-up period for the 28 patients ranged from 3-66 mo, during which locoregional or distant metastases were diagnosed in six patients and two patients died.CONCLUSION: Studies on EGISTs have only been published in the last decade. The lack of studies with large patient cohorts and long-term follow-up limits evidence-based commentary. In theory, each case should be assessed individually and further genetic and immunohistochemical studies are needed. | Sami Akbulut Rdvan Yavuz Emrah Otan Sinan Hatipoglu | 2014 | World Journal of Gastrointestinal Surgery2014，6，9： | 4 |
| 5 | Hydatid cyst of the pancreas:Report of an undiagnosed case of pancreatic hydatid cyst and brief literature review显示文摘AIM: To overview the literature on pancreatic hydatid cyst(PHC) disease, a disease frequently misdiagnosed during preoperative radiologic investigation.METHODS: PubMed, Medline, Google Scholar, and Google databases were searched to identify articles related to PHC using the following keywords: hydatid cyst, hydatid disease, unusual location of hydatid cyst, hydatid cyst and pancreas, pancreatic hydatid cyst, and pancreatic echinococcosis. The search included let-ters to the editor, case reports, review articles, original articles, meeting presentations and abstracts that had been published between January 2010 and April 2014 without any restrictions on language, journal, or country. All articles identified and retrieved which contained adequate information on the study population(including patient age and sex) and disease and treatment related data(such as cyst size, cyst location, and clinical man-agement) were included in the study; articles with in-sufficient demographic and clinical data were excluded. In addition, we evaluated a case of a 48-year-old fe-male patient with PHC who was treated in our clinic.RESULTS: A total of 58 patients, including our one new case,(age range: 4 to 70 years, mean ± SD: 31.4 ± 15.9 years) were included in the analysis. Twenty-nine of the patients were female, and 29 were male. The information about cyst location was available from studies involving 54 patients and indicated the follow-ing distribution of locations: pancreatic head(n = 21), pancreatic tail(n = 18), pancreatic body and tail(n = 8), pancreatic body(n = 5), pancreatic head and body(n = 1), and pancreatic neck(n = 1). Extra-pancreatic locations of hydatid cysts were reported in the studies involving 44 of the patients. Among these, no other focus than pancreas was detected in 32 of the patients(isolated cases) while 12 of the patients had hydatid cysts in extra-pancreatic sites(liver: n = 6, liver + spleen + peritoneum: n = 2, kidney: n = 1, liver + kidney: n = 1, kidney + peritoneum: n = 1 and liver + lung: n = 1). Serological information was available in the studies involving 40 patients, and 21 of those pa-tients were serologically positive and 15 were serologi-cally negative; the remaining 4 patients underwent no serological testing. Information about pancreatic cyst size was available in the studies involving 42 patients; the smallest cyst diameter reported was 26 mm and the largest cyst diameter reported was 180 mm(mean ± SD: 71.3 ± 36.1 mm). Complications were avail-able in the studies of 16 patients and showed the fol-lowing distribution: cystobiliary fistula(n = 4), cysto-pancreatic fistula(n = 4), pancreatitis(n = 6), and portal hypertension(n = 2). Postoperative follow-up data were available in the studies involving 48 patients and postoperative recurrence data in the studies of 51 patients; no cases of recurrence occurred in any patient for an average follow-up duration of 22.5 ± 23.1(range: 2-120) mo. Only two cases were reported as having died on fourth(our new case) and fifteenth days respectively. CONCLUSION: PHC is a parasitic infestation that is rare but can cause serious pancreato-biliary complica-tions. Its preoperative diagnosis is challenging, as its radiologic findings are often mistaken for other cystic lesions of the pancreas. | Sami Akbulut Ridvan Yavuz Nilgun Sogutcu Bulent Kaya Sinan Hatipoglu Ayhan Senol Firat Demircan | 2014 | World Journal of Gastrointestinal Surgery2014，6，10： | 1 |
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