Extracorporeal shock wave lithotripsy and endotherapy for pancreatic calculi—a large single center experience.

Aim Large pancreatic ductal calculi and pain are a feature of chronic calcific pancreatitis (CCP) in the tropics. This large single center study evaluates the role of extracorporeal shock wave lithotripsy (ESWL) in fragmentation of large pancreatic stones and relief of pain in patients with CCP. Methods Patients with CCP presenting with pain and large pancreatic duct (PD) calculi (>5 mm diameter) not amenable to extraction at routine endoscopic retrograde cholangio pancreatography (ERCP) were taken up for ESWL using a 3rd generation lithotripter. Stones in the head and body of pancreas were targeted at ESWL; 5,000 shocks were given per session. The calculi were fragmented to <3 mm size and then cleared by endotherapy. Pancreatic duct stents were deployed when indicated. A total of 1,006 patients underwent ESWL. Complete clearance was achieved in 762 (76%), partial clearance in 173 (17%) and unsuccessful in the rest. More than 962 (90%) of patients needed less than three sessions of ESWL. At 6 months, 711 (84%) of 846 patients who returned for follow up had significant relief of pain with a decrease in analgesic use. Complications were mild and minimal. Conclusion ESWL is an effective and safe modality for fragmentation of large PD calculi in patients with CCP.

Narrow band imaging cholangioscopy in hilar cholangiocarcinoma.

Per oral cholangioscopy has been developed as a diagnostic modality for evaluation of bile duct lesions. Per oral cholangioscope with narrow band imaging (NBI) system can provide good quality images of bile duct lesions. There is limited data on per oral cholangioscopy using NBI in biliary tract diseases. We report our experience of NBI cholangioscopy in hilar strictures.

Epidemiological and clinical profile of irritable bowel syndrome in India: report of the Indian Society of Gastroenterology Task Force.

AIMS: To study the profile of irritable bowel syndrome (IBS), and the frequency of such symptoms among the general population, in India. METHODS: In this prospective, multi-center study, data were obtained from 2785 patients with chronic lower gastrointestinal symptoms (complainants) with no alarm feature and negative investigations for organic causes visiting physicians at 30 centers, and from 4500 community subjects (non-complainants), using separate questionnaires. RESULTS: Most complainants were middle-aged (mean age 39.4 years) and male (1891; 68%). The common symptoms were: abdominal pain or discomfort (1958; 70%), abdominal fullness (1951; 70%); subjective feeling of constipation (1404 of 2656; 53%), or diarrhea (1252 of 2656, 47%), incomplete evacuation (2134; 77%), mucus with stools (1506; 54%), straining at stools (1271; 46%), epigastric pain (1364; 49%) and milk intolerance (906; 32%). Median stool frequency was similar in patients who felt they had constipation or those who felt they had diarrhea. Information to subtype symptoms using standard criteria was available in 1301 patients; of these, 507 (39%) had constipation-predominant IBS ( 3 <or= stools/week), 50 (4%) had diarrhea-predominant IBS (>3 stools/day) and 744 (57%) had indeterminate symptoms. Among non-complainants, most subjects reported daily defecation frequency of one (2520 [56%]) or two (1535 [34%]). Among non-complainants, 567 (12.6%) reported abdominal pain, 503 (11%) irregular bowel, 1030 (23%) incomplete evacuation, 167 (4%) mucus and 846 (18%) straining at stools; a combination of abdominal pain or discomfort relieved by defecation, and incomplete evacuation was present in 189/4500 (4.2%) community subjects. CONCLUSIONS: Most patients with IBS in India are middle-aged men, and have a sense of incomplete evacuation and mucus with stools. Abdominal pain or discomfort is frequent but not universal. Importantly, stool frequency was similar irrespective of whether the patients felt having constipation or diarrhea. Most (90%) non-complainant subjects had 1 or 2 stools per day; symptoms complex suggestive of IBS was present in 4.2% of community subjects.

Role of magnification endoscopy in the diagnosis and evaluation of suspected celiac disease: correlation with histology.

BACKGROUND: Magnification endoscopy (ME), with 115-fold magnification, allows visualization of duodenal villi. We assessed the efficacy of ME for evaluation of villous atrophy. METHODS: ME and duodenal biopsy were done in 16 patients with suspected celiac disease and 16 control subjects undergoing endoscopy for reflux symptoms. The pathologist was unaware of the ME findings. RESULTS: Sensitivity, specificity and positive and negative predictive values for villous atrophy (partial or total) were 100%, 91%, 83% and 100%, respectively. Corresponding values for normal villous structure were 91%, 100%, 100% and 83%, respectively. There was significant concordance between the ME and histology findings. CONCLUSION: ME is a reliable technique to diagnose villous atrophy.

Capsule endoscopy in obscure gastrointestinal bleeding--an Indian experience.

BACKGROUND: Obscure gastrointestinal bleeding (OGIB) is a common indication for capsule endoscopy (CE). Reports on diagnostic yield of CE in this situation show a wide variation. We evaluated the diagnostic yield and clinical impact of CE in patients with OGIB. METHODS: We reviewed the medical records of patients with OGIB who underwent CE at our institution between June 2002 and October 2005. RESULTS: 154 patients (mean age 47 [SD 17] years; 117 men), including 74 with overt OGIB and 80 with occult OGIB, underwent CE. CE yielded positive findings in 57 of 74 patients (77%) with overt OGIB and 22 of 80 (27%) of those with occult OGIB (p < 0.0001); the overall positive diagnostic yield was 52%. NSAID-induced lesions (15%), angiodysplasias (14%) and aphthous ulcers (12%) were the most frequent findings. CE helped in planning further management in 79% of patients with overt OGIB and 26% of those with occult OGIB. CONCLUSION: CE is a useful diagnostic technique in patients with OGIB, especially those with overt OGIB.

Safety of therapeutic ERCP in pregnancy - an Indian experience.

INTRODUCTION: Only limited data are available regarding the safety of therapeutic ERCP in pregnancy. We report our experience with therapeutic ERCP in pregnant women. METHODS: Medical records of 18 pregnant women (first trimester 4, second 6, third 8) who underwent ERCP between July 1994 and December 2004 were reviewed. Patients and their families were contacted to assess the well being of mother and baby. RESULTS: All the women underwent therapeutic ERCP and biliary sphincterotomy for common bile duct (CBD) stones. In 4 patients, 10-Fr CBD stents were inserted; three of these four cases required mechanical lithotripsy after delivery. Median procedure time was 17 min and median fluoroscopy time was 8 seconds. One patient each developed mild post ERCP pancreatitis and post sphincterotomy bleed. One woman had a preterm delivery. At follow up after a median of 6 years, all the babies were healthy. CONCLUSION: Therapeutic ERCP can be performed safely in all the trimesters of pregnancy provided appropriate precautions are taken.

Rome I criteria are more sensitive than Rome II for diagnosis of irritable bowel syndrome in Indian patients.

AIM: To assess the utility and efficacy of Rome I and Rome II criteria for the diagnosis of irritable bowel syndrome (IBS) in India. METHODS: Patients referred with a diagnosis of IBS by general practitioners answered a questionnaire about clinical features, including those listed in the Rome I and Rome II criteria. All patients underwent investigations to determine the cause of their symptoms. Sensitivity, positive predictive value and percent agreement of final diagnosis with Rome I and II criteria were calculated. RESULTS: Among 138 patients studied, 6 patients had organic disease . Amongst 132 patients with functional bowel disease, Rome I criteria diagnosed more patients as IBS than Rome II criteria (110 [83.3%] vs. 41 [31.1%]); 36 patients fulfilled both the criteria. Of the patients positive by Rome I, 32.7% fulfilled Rome II criteria, and of those diagnosed by Rome II criteria, 87.8% fulfilled Rome I criteria. Seventeen patients did not fulfill either Rome I or Rome II criteria, and were classified as functional abdominal bloating, functional diarrhea or functional constipation. CONCLUSION: Rome I criteria are more sensitive than Rome II criteria for the diagnosis of IBS in the Indian population.