Ultravist(R) Test in Postoperative Small Bowel Obstruction

PURPOSE: To determine whether Ultravist(R) test can enable the surgeon to differentiate complete from partial small bowel obstruction in patients with adhesive small bowel obstruction and whether partial small bowel obstruction can be treated nonoperatively. METHODS: Ninety-two patients who had postoperative small bowel obstructions without any toxic signs underwent Ultravist(R) test. Ultravist(R) (40 ml) mixed with 40 ml of distilled water was administrated either orally or via nasogastric tube to each patient. Serial plain abdominal radiographs were taken 4, 6, and 8 hours later. RESULTS: A total of 58 patients (63%) whose contrast medium reached the colon within the first 8 hours were considered to have partial obstruction (test positive) and were successfully treated with intravenous hydration and nasogastric decompression. The remaining 34 patients (36.9%), in whom the contrast medium failed to reach the colon within the first 8 hours (test negative), were regarded as having complete obstruction. Twenty-three of those patients (67.6%) underwent surgery and the other 11 (32.4%) received conservative treatment. Adhesion bands with complete bowel obstruction were observed in all 23 surgical patients during laparotomy. All the patients with partial bowel obstruction were treated successfully with nonoperative methods. Positive Ultravist(R) test as an indicator for nonoperative treatment had a sensitivity of 84.5%, a specificity of 100%, an accuracy of 88% and a false negative rate of 12%. CONCLUSION: Ultravist(R) can be used to differentiate partial from complete intestinal obstruction. All patients with evidence of Ultravist(R) reaching the colon within 8 hours were treated successfully with non-operative methods.

Percutaneous Gallbladder Drainage for Delayed Laparoscopic Cholecystectomy in Patients with Acute Cholecystitis / 한국간담췌외과학회지

BACKGROUND/AIMS: It have been reported that operative mortality and morbidity rate rise significantly when emergency cholecystectomy is performed in critically ill patients with acute cholecystitis(AC), and many studies have also concluded that delayed or interval laparoscopic cholecystectomy(LC) in patients with AC demonstrated high conversion rate and complication rate compared with early LC. However, if the acutely inflamed gallbladder(GB) is decompressed by emergent percutaneous gallbladder drainage(PGBD), it may decrease the technical difficulty of LC allowing successful delayed LC or may decrease the wound complication of delayed open cholecystectomy, when the patient is in better condition. The purpose of this retrospective study was to assess the outcome of delayed cholecystectomy focused on LC following PGBD in patients with AC METHODS: A total of 181 patients with AC were divided into PGBD(n= 66) and non-PGBD group(n= 115), and each group were subdivided into PGBD-delayed LC(after 72 hours of admission, n= 32), PGBD-open cholecystectomy(n= 20), non-PGBD-early LC(within 72 hours of admission, n= 40), non- PGBD-delayed LC(n= 17), non PGBD-open cholecystectomy group(n= 58) and others. PGBD group had higher incidence of comorbidity compared with non-PGBD group. Outcomes of cholecystectomy was assessed by conversion rate and morbidity rate(chi2 test), LC time and hospital stay(median test) for LC, and morbidity for open cholecystectomy in PGBD group compared with those of non PGBD group. RESULTS: PGBD promptly relieved of symptom of AC in 94 % of patients and showed 3 % of technical failure and 4.5 % of complication rate. Compared with non PGBD-early and delayed LC group, the PGBD-delayed LC group showed longer LC time(median 110 min vs 82.5, p < 0.05, vs 95 min), a little lower conversion rate(12.5 % vs 22.5 % vs 17.6 %), similar morbidity rate(19% vs 17.5 % vs 29 %) and prolonged total hospital stay(median 12.5 days vs 7 days, p < 0.001, vs 10 days). In open cholecystectomy series, PGBD group showed lower morbidity rate compared with non PGBD group(5% vs 24 %, p < 0.05) CONCLUSION: Unlike to open cholecystectomy series, PGBD did not significantly improve the outcome of LC for AC as assessed by conversion and morbidity rate and hospital stay compared with non PGBD. Thus we can conclude that although PGBD is a safe and effective emergency procedure for AC, it should be limited to higher risk group such as elderly or critically ill patients and to acalculous cholecystitis.