Factors predicting in-hospital mortality in patients with cirrhosis hospitalized with gastro-esophageal variceal hemorrhage.

AIM: To identify factors at the time of admission that predict in-hospital mortality in patients with gastro-esophageal variceal hemorrhage. METHODS: Case records of patients admitted with gastro-esophageal variceal hemorrhage between January 1998 and October 2003 were retrospectively analyzed. Relevant clinical and laboratory parameters and their relationship to mortality, were studied. Clinical parameters assessed included Child-Pugh class, ascites, portosystemic encephalopathy (PSE) and occurrence of rebleed within 24 hours of esophago-gastroduodenoscopy. The laboratory parameters assessed were: hemoglobin, prothrombin time, serum bilirubin, creatinine and albumin. RESULTS: Of the 343 patients admitted during the study period, 30 (8.7%) died in hospital. Serum bilirubin (2.4 versus 1.6 mg/dL) and serum creatinine (2.1 vs 1.1 mg/dL) levels were higher among non-survivors than among survivors. Non-survivors were also more likely to suffer from PSE (53%) than survivors (17%), while re-bleeding within 24 hours of endoscopy occurred in 40% and 5% of these groups, respectively. On multivariate analysis, serum creatinine > 1.5 mg/dL at the time of admission (p < 0.001), serum bilirubin > 3 mg/dL (p < 0.001), presence of PSE (p = 0.003) and rebleed within 24 hours of endoscopy (p < 0.001) were significant predictors of mortality. CONCLUSION: Serum creatinine and bilirubin levels, presence of PSE and re-bleeding within 24 hours of initial endoscopy are independent predictors of mortality in patients with gastro-esophageal variceal bleeding.

Role of rapid urease test and histopathology in the diagnosis of Helicobacter pylori infection in a developing country.

BACKGROUND: The aim of this study was to determine the effect of commonly self-prescribed proton pump inhibitors (PPI) on the results of rapid urease test and histology for the diagnosis of H. pylori infection. METHODS: One hundred-nine consecutive patients with dyspeptic symptoms attending the endoscopy suite were enrolled in this study. Antrum biopsy specimens were collected at endoscopy for the rapid urease test (Pronto Dry, Medical Instrument Corp, France) and histopathology. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and like-hood ratio of a positive and negative of Pronto Dry test were compared against histology. The gold standard test for the diagnosis of H. pylori infection was histopathology. RESULTS: Sixty-one percent (66/109) patients were males with mean age of 43 +/- 14.1 years and age range 17-80 years. Fifty-two percent (57/109) were not on any medications while 48% (52/109) used PPI before presentation to the outpatients. Pronto Dry was positive in 40% (44/109) and negative in 60% (65/109). Histopathology was positive for H. pylori in 57% (62/109) and negative in 43% (47/109). The sensitivity, specificity, PPV, NPV and like-hood ratio of a positive and negative Pronto Dry test with and without PPI were 43.3%, 86.4%, 81.3%, 3.18, 0.656 and 52.8% vs 71.9%, 80%, 82.1%, 69%, 3.59 and 0.35. CONCLUSION: This study shows that the sensitivity, specificity, NPV and PPV of rapid urease test was reduced in patients who are on PPI. The exclusive use of the rapid urease test for the diagnosis of Helicobacter pylori cannot be recommended in patients with prior PPI use.