Medicine

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Elective cholecystectomy is associated with increased morbidity and mortality in patients with severe Thalassemia: A retrospective case control study.
(Ferrata Storti Foundation, 2015) Premawardhena, A.; Fernando, R.; Kumarage, S.; Nishad, N.; de Silva, I.
BACKGROUND: Haemoglobin disorders including thalassemia and sickle cell disease are often complicated with gall stone formation. The co-existence of Gilbert's syndrome together with these diseases further increases the risk of gall bladder disease. Some of these patients develop symptomatic disease which necessitates surgical intervention. At present the timing of cholecystectomy for thalassemia is no different from that of the general population with the exception of removal of the gall bladder at the time of splenectomy. This is no longer the case in sickle cell disease where, laparoscopic cholecystectomy is recommended even in asymptomatic patients. This practice however has not been extended to other types of haemoglobin disorders. AIM(S): 1.To assess the perioperative complications of patients with thalassaemia during cholecytetomy and to compare it with non thalassaemics who undergo the procedure. 2. To see if there is enough evidence to recommend elective cholecystectomy for thalassaemics. METHOD(S): We retrospectively studied case notes of thalassemia patients who had cholecystectomy (cases) in two of the biggest thalassaemia centres in Sri Lanka and also of 62 non-thalassaemics (controls) with gall bladder disease who had been scheduled to have gall bladder surgery in the same hospitals and looked at their peri-operative complications. RESULT(S): 98 out of 540 (18%) thalassaemics in the two centres had gall stones. Mean age of cases was 26.8 (SD 10.9) years and of controls 47.5 (SD 19.7) years. 19 (19%) thalassaemics with gall stones had undergone cholecystectomy. Ten patients had cholecystectomy simultaneously with splenectomy. The majority of non-thalassaemic "controls" had laparoscopic cholecystectomy 53/55 (96.3%) whilst the patients with thalassaemia were mostly operated with laparotomy 13/19 (68%). There was a significant excess complications occurring in both early (42.11 vs. 18.1%) and late (31.5 vs. 12.7%) phases in the thalassaemic patients compared with the controls. Among the early complications, sepsis (10.5% vs. 1.8%) and liver abscess formation (5.2 vs. 0%) was significantly different in the groups, adversely affecting the thalassaemics. Recurrent abdominal pain was more common among the thalassaemics as a late complication (P<0.05). Six thalassaemic patients with gall stone disease died during this study, 5(5%) while awaiting surgery and 1(1%) after surgery. There were no deaths among the controls. Out of the deaths, 3 (50%) were directly attributable to gallstone disease. In all three septicemia precipitated heart failure. We found a significant increase of both early and late post-surgical complications in the thalassemia group and also increased mortality most of which was related to severe sepsis. Higher perioperative mortality and morbidity were seen among symptomatic thalassaemic patients with gall stone disease undergoing cholecystectomy. This seems to suggest a strong case for supporting elective cholecystectomy in thalassemics before they develop symptoms. SUMMARY AND CONCLUSION(S): We suggest that laparoscopic elective cholecystectomy be considered for non-sickle, thalassemia patients too who have asymptomatic gall bladder disease, in an attempt to reduce this morbidity and mortality.
Early predictors of severe dengue in adults
(Elsevier, 2012) Wijewantha, H.; Premaratna, R.; Mabharana, I.; Nishad, N.; de Silva, A.; de Silva, H.J.
BACKGROUND: Dengue is the main infectious disease causing high morbidity and mortality among adults in dengue endemic regions of Sri Lanka. Prediction of severe illness at an earlier stage of infection helps to arrive at management decisions. Studies to identify predictors of severe dengue in adults are sparse. METHODS: In order to identify predictors of severe dengue by the third day of illness, symptoms, signs and investigation results of first 3 days of illness between two groups A and B (defined below) were compared in a prospective cohort study of consecutive 117 adult patients (age>12 years) with serologically confirmed dengue admitted to the professorial medical unit, Colombo North Teaching Hospital, Ragama, Sri Lanka over 6 month from 1st of March 2011. Group A (Severe illness): development of ascites or pleural effusions (evidence of fluid leakage), compensated shock and profound shock (as defined by WHO guidelines for Dengue 2010), Group B: all others who did not fall into Group A. Severity of symptoms was assessed by a visual analogue scale, and rest of the clinical parameters, investigation results were documented prospectively. RESULTS: Of the 117 adults (95 males) mean age 31.95years (SD=13.34); 27 fell into Group A and 90 into group B. On the 3rd day of illness, mean Aspartate aminotransferase (AST); Group A 260 iu/L (SD=168.8) vs Group B-145 iu/L (SD=135.11) (p=0.005). Mean Alanine aminotransferase (ALT); Group A-247 iu/L (SD=161.5) vs Group B-105iu/L (SD-91.5) (p=0.002). None of the symptoms, signs and other investigations including platelet count, packed cell volume (PCV) and white blood cell count was significantly different. Analysis of the whole 117, pearson correlation test showed a positive correlation of AST(r=0.3) (p=0.038) and ALT(r=0.3) (P=0.045) with PCV and a negative correlation (r=-0.3) with platelet count (p=0.014). AST(r=0.25) and ALT (r=0.3) on day 3 was positively correlated with development of malena at any stage (p=0.05). CONCLUSION: Higher AST and ALT levels on 3rd day of dengue seems to be useful predictors of severe dengue. © 2012 Elsevier Inc.

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