Acquisition of Helicobacter pylori infection and reinfection after its eradication are uncommon in Indian adults.

BACKGROUND: Eradication of Helicobacter pylori infection is known to decrease the recurrence rate of peptic ulcer disease. Data from India on the acquisition rate of H. pylori infection and reinfection after eradication are scant. AIM: To study the rates of acquisition of H. pylori infection and of reinfection after eradication in Indian adult patients. METHODS: We evaluated 116 consecutive patients with dyspepsia undergoing endoscopy. Sixty-four of them were H. pylori-positive on gastric antral biopsy (rapid urease test and histology). Patients diagnosed to have H. pylori infection were treated with a four-drug regimen (omeprazole, bismuth subcitrate, tetracycline, furazolidine) for 2 weeks; those failing H. pylori eradication were treated with a second regimen (lansoprazole, amoxycillin, secnidazole) for one week. Patients who were H. pylori-negative to begin with and those who had successful H. pylori eradication were followed up clinically and endoscopically every 3 months for a median of one year. RESULTS: Ninety-six patients (50 H. pylori-positive) were available for study; the other 20 were lost to follow up after the first endoscopy. Fifty of the 96 (52%) were H. pylori-positive; four of these 50 patients did not follow up after first treatment. The eradication rate with the four-drug regimen was 89.1% (41/46). Four of the 5 non-responders eradicated H. pylori with the second regimen. At the end of median one year follow-up (range 9-15 months), one of the 45 patients (2.4%) who eradicated the organism developed reinfection; none of the 46 patients who were initially H. pylori-negative acquired new infection. CONCLUSIONS: The risk of reinfection after eradication is low in Indian subjects at the end of one year. The rate of acquisition of new infection is also low in the adult population.

Predictors of response to pneumatic dilatation in achalasia cardia.

BACKGROUND: The role of esophageal laboratory testing in predicting response to balloon dilatation in patients with achalasia cardia has been evaluated in the West; data in Indian patients are scant. AIM: To study the predictors of response to pneumatic balloon dilatation in Indian patients with achalasia cardia. METHODS: Twenty-five patients with achalasia cardia who had earlier undergone esophageal manometry before balloon dilatation (Group A) were recalled for clinical evaluation. Another consecutive 25 patients with newly diagnosed achalasia (Group B) underwent esophageal manometry and isotope transit studies before and after dilatation. RESULTS: The overall symptom response to dilatation in the 50 patients at median (range) follow up of 26 (1-60) months was 64%. Pre-dilatation clinical and laboratory parameters did not predict outcome. All patients with 1-week post-dilatation lower esophageal sphincter (LES) basal pressure less than or equal to 10 mmHg and residual pressure less than 6 mmHg were asymptomatic at follow up. CONCLUSION: Post-dilatation LES basal pressure less than or equal to 10 mmHg and residual pressure less than 6 mmHg are predictors of symptom response to balloon dilatation in patients with achalasia cardia.

Jejunal stricture complicating acute mesenteric venous thrombosis secondary to protein C deficiency and factor V Leiden gene mutation.

We report a patient with high small intestinal obstruction due to ischemic stricture, secondary to acute mesenteric venous thrombosis. Tests done for hypercoagulability revealed dual etiology (protein C deficiency and factor V Leiden gene mutation). The patient underwent surgical resection and has been on anticoagulation treatment. At 2 years' follow up, she remains asymptomatic.

Profile of extrahepatic portal venous obstruction in Mumbai.

AIM OF THE STUDY: To study the clinical profile of extrahepatic portal venous obstruction (EHPVO) in a tertiary referral centre in Mumbai. METHODOLOGY: Retrospective analysis of records of 113 patients with EHPVO, treated between January 1984 and May 1996. RESULTS: Thirty eight of 54 (70.4%) patients in whom information was available were delivered at home. Eleven of the 50 (22%) had umbilical sepsis after birth. Median disease duration was 5 years (range 4 months-31 years), with age at initial presentation 13 (range 0.5-45) years; 24 (20%) patients presented after age 20 years. Eleven presenting initially with splenomegaly bled after 3 (1-14) years. Number of bleeding episodes per patient was 2.5 (1-12). 13 of 44 (29.6%) patients bled (first bleed or recurrence) after age 20 years. Twenty five (22.3%) had ascites at some time, 17/102 (16.7%) had hypersplenism, and hypoalbuminaemia was present in 20/103 (19.2%). Endoscopic sclerotherapy obliterated varices in 47/52 (90.4%) in 10.5 (3-40) sessions over 7 (1-100) months. Twenty three patients underwent surgery: devascularisation in 20 (with splenectomy in seven), distal lieno-renal shunt in two, and meso-caval shunt in one patient. Follow-up was available in 68 (60.2%) patients. Rebleeding after sclerotherapy occurred in 27/64 (42.2%), with median one (1-5) per patient; recurrence of varices was noted in 15/35 (42.9%) patients over 12 (3-39) months. Varices were present in 12 patients 163 (33-305) months after surgery. CONCLUSIONS: Home delivery and umbilical sepsis may be risk factors in the development of EHPVO. A significant number of patients present or continue to bleed from varices after age 20. Variceal sclerotherapy is effective for eradication of oesophageal varices.