IntroductionRecords on gallstones and associated ailments in Sri Lankan community are scarce, despite frequent detection of gallstone disease. Identification of the chemical composition of gallstones in the local setting is important in defining aetiopathogenic factors which in turn are useful in implementing therapeutic and preventive strategies. This study aimed to describe the chemical composition of gallstones and the socio-demographic factors of a cohort of Sri Lankan patients with gallstone disease.Materials and MethodsData on clinical and socio-demographic factors, and gallstones removed at surgery were collected from patients with cholelithiasis admitted to Teaching Hospital, Peradeniya, Sri Lanka from May 2011 to December 2012. External and cross sectional morphological features of gallstones were recorded by naked eye observation. Compositional analysis was carried out by Fourier Transform Infrared Spectroscopy, X - ray Powder Diffraction, and Atomic Absorption Spectrophotometry. Scanning Electron Microscopy was used to identify the microstructure of gallstones.ResultsData of 102 patients were analyzed. Of them majority (n = 77, 76%) were females with a female: male ratio of 3:1. Mean age of the study group was 46.1±11.6 years. All the patients had primary gallbladder stones. According to the physical and chemical analysis, majority (n = 54, 53%) were pigment gallstones followed by mixed cholesterol gallstones (n = 38, 37%). Only 10 (9%) had pure cholesterol gallstones. Calcium bilirubinate, calcium carbonate and calcium phosphate were the commonest calcium salts identified in pigment gallstones and core of mixed cholesterol gallstones.ConclusionPresence of a pigment nidus in gallstones is a common feature in majority of Sri Lankan patients denoting the possible role of elevated unconjugated bilirubin in bile on the pathogenesis of GS. Hence it is imperative to explore this further to understand the aetiopathogenesis of GS among Sri Lankans.
BackgroundPathogenesis of gallstones (GS) is multifactorial and multiple genetic and environmental factors have been identified in different populations for different types of GS with varying prevalence. However the role of the each aetiological factor on the formation of mixed cholesterol and black pigment GS has not being addressed adequately. Hence in this study we attempted to compare known possible risk factors for mixed cholesterol and black pigment GS among two groups of patients with two types of GS.MethodsThe study was done on a cohort of patients with symptomatic GS admitted to the Teaching Hospital Peradeniya, Sri Lanka over a period of 18 months. Clinical and epidemiological data and physical parameters of the patients were recorded and surgically removed GS were analyzed chemically and physically to identify the type of GS. In addition lipid profile was done in all the patients with normal serum bilirubin levels.ResultsA total of 86 patients were included in the study. Mixed cholesterol GS was significantly common among females than males (χ2 test, p = 0.029). Mixed cholesterol GS was commonly seen among patients belonging to Moor ethnicity (χ2 test, p = 0.009). Majority of patients with mixed cholesterol GS had body mass index above 25 kg/m2 (χ2 test, p = 0.018). Black pigment GS were significantly common among patients with type II diabetes mellitus (Fisher’s exact test, p = 0.035). Further all the patients with chronic haemolytic anaemia and alcoholic cirrhosis had black pigment GS. Age, family history, Fasting Blood Glucose, dyslipidaemia, lipid profile, parity and use of oral contraceptive pills in females, smoking and alcohol intake in males did not differ significantly among patients in the two groups.ConclusionGender, ethnicity and body mass index can be used to predict the formation of mixed cholesterol GS and black pigment GS.
BackgroundGallstones (GS) are formed as a result of impaired metabolic regulation of the human body. Abnormal lipid metabolism is partly responsible for the pathogenesis of GS mainly rich in cholesterol. Thus abnormalities of serum lipids would reflect the possibilities of the formation of cholesterol GS. This study aims to identify the significance of serum lipids on the development of GS disease.MethodsSerum lipid profiles were estimated in 73 patients with symptomatic GS, admitted to the Teaching Hospital, Peradeniya, Sri Lanka for GS removal surgeries from May 2011 to December 2012. Patients with normal serum bilirubin level and not being on lipid lowering drugs were recruited for the study. Serum lipid profile of each patient was analyzed by enzymatic kit assays and the chemical composition of GS was analyzed by Fourier Transform Infrared spectroscopy.ResultsOf the 73 patients, 37 (51%) had cholesterol GS while 36 (49%) had pigment GS. Serum lipid parameters of a majority of patients were within the normal range. Body mass index values of the patients with two types of GS were not significantly different (Two sample t test, p = 0.335). Out of the lipid parameters tested, only serum triglyceride concentration was significantly high in patients with cholesterol GS than that of pigment GS (Two sample t test, p = 0.038). None of the lipid parameters were significantly different between males and females (Two sample t test, p > 0.05). Compared to the patients with pigment GS who were aged below 50 years, mean total cholesterol and triglyceride concentrations were higher in the same age category patients with cholesterol GS.ConclusionAbnormal serum lipid profiles doesn’t seem to be an essential feature in patients with cholesterol GS. However when the two groups of patients with cholesterol and pigment GS with no significant difference of body mass indexes were compared, patients with cholesterol GS are more likely to have serum lipid parameters towards the undesirable cutoff levels of their respective normal ranges. However an effect of serum lipid concentrations on high incidence of GS among females has not been identified.
Background and AimThere is increasing prevalence of inflammatory bowel disease (IBD) in Asia, but Sri Lankan data on the state of epidemiology and clinical course of IBD are scarce.MethodsA hospital‐based study was done by recruiting IBD patients who permanently reside in the Central Province (population 2.57 million, 12.6% of Sri Lankan population) of Sri Lanka. Cases were confirmed by standard criteria and data were collected from health records and patient interviews at clinic visits and hospital admissions.ResultsThere were 200 cases of IBD; (ulcerative colitis [UC]—140, Crohn's disease [CD]—60, microscopic colitis—7). The crude prevalence rate of UC was 5.44/100 000 (95% CI 5.41–5.47/100 000) and CD was 2.33/100 000 (95% CI 2.31–2.35/100 000). Female to male ratios were 1:0.8 for UC but 1:1.5 for CD.Mean age at diagnosis was 42.0 and 31.9 years for UC and CD, respectively. One UC and one CD patient had positive family history of IBD. Among the UC patients, 60.7%, 24.3%, and 15% had proctitis, left sided, and extensive disease, respectively. At presentation, 62.1% of the UC patients have had moderately severe disease. 60% of the CD patients had only large bowel involvement and 80% had nonstricturing and nonpenetrating disease. Extra intestinal manifestations were present in 45.7% and 60.0% of UC and CD patients, respectively, in which peripheral arthralgia and arthritis being the commonest. 6.4% of UC and 23.3% of the CD patients (total of 23) required infliximab for induction of remission.ConclusionThe prevalence of IBD in the Central Province of Sri Lanka is lower than other Asian and Western populations. There is a predominance of male gender and isolated colonic disease in CD patients. UC patients have an equal gender distribution and a higher proportion of proctitis. CD needed induction with infliximab than UC.
Introduction. Free peritoneal perforation of pancreatic fluid collections is extremely rare and only few case reports exist in the literature. Many of these patients undergo emergency exploratory laparotomy due to sepsis and haemodynamic instability requiring sepsis control. The use of laparoscopic techniques in this circumstance is limited by the haemodynamic stability of the patient and the technical challenges. But effective laparoscopic management is associated with less morbidity to the patient. Case Presentation. A 28-year-old patient presented with worsening generalized abdominal pain with increased inflammatory markers. She required persistent inotropic support despite adequate fluid resuscitation. She had transient acute renal impairment and acute respiratory distress, which improved with noninvasive support. CECT (contrast-enhanced computed tomography) showed an infected pancreatic fluid collection with peritoneal free fluid. Aspiration of pelvic collection showed purulent fluid. Based on these clinical and imaging findings, she was diagnosed with a free peritoneal perforation of an infected pancreatic fluid collection. She underwent a laparoscopic drainage and necrosectomy of the infected pancreatic collection and peritoneal washout. She had a gradual recovery. All inotropes were omitted on the second day following surgery. She was sent to the ward from the ICU (intensive care unit) on the 4th postoperative day. Conclusion. The laparoscopic approach is a viable option in managing ruptured pancreatic fluid collections when patient and technical factors are supportive. It reduces surgical morbidity, thereby reducing the overall strain on physiological reserves. When opted for laparoscopic drainage, the procedure must be guided by imaging findings. Multidisciplinary participation is critical in the overall management.
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