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Biomedical subjects

V Sitaram

Publications and source records attributed to V Sitaram.

At least 19 recordsLinked to original sources

Post-cholecystectomy benign biliary stricture with portal hypertension: is a portosystemic shunt before hepaticojejunostomy necessary?

BACKGROUND: Portal hypertension develops in 15-20% of patients with benign bile duct stricture. Hepaticojejunostomy in such patients is associated with considerable morbidity and mortality. Preliminary portosystemic shunting has been suggested to reduce intra-operative bleeding. We present our experience without preliminary shunting in such patients. PATIENTS AND METHODS: Fourteen consecutive cases of biliary stricture with portal hypertension over a 13-year period (1989-2001) were retrospectively analysed. RESULTS: Thirteen patients were operated upon. One patient had a preliminary portosystemic shunt. In another patient, shunt was attempted. One stage hepaticojejunostomy was possible in 11 patients. There were no intra-operative deaths. Nine of the 13 survived and were available for follow-up. One patient had cholangitis. Another had jaundice related both to chronic liver disease and a strictured hepaticojejunostomy. The remaining 7 patients are asymptomatic and anicteric although alkaline phosphatase levels remain elevated in 5 of them. CONCLUSIONS: Hepaticojejunostomy without preliminary portosystemic shunting is possible in patients with portal hypertension and benign biliary stricture with acceptable morbidity and mortality rates.

Adolescent↗

Management of non-functioning neuroendocrine tumours of the pancreas.

Between 1982 and 1991, 20 patients of median age 44 (range 22-76) years were treated for non-functioning neuroendocrine tumours of the pancreas. Presenting features were obstructive jaundice (seven patients), abdominal pain (seven), weight loss (six), abdominal mass (eight) and severe haemorrhage (four). Gut hormone profiles were normal except for one patient who had a raised pancreatic polypeptide level. Contrast-enhanced computed tomography localized the tumour in 17 patients and visceral angiography in 14 of 15; all but three tumours were highly vascular. Ten patients underwent curative resection, and the remainder were managed palliatively by resection (four), bypass procedures (three) or biopsy alone (three). There were two postoperative deaths and seven early complications. Seven of the remaining 18 patients have died from disease a median of 16 (range 4-30) months after presentation. The 11 survivors, eight of whom had curative resections, have been followed for a median of 42 (range 7-72) months. Ten patients are asymptomatic but only five are free from disease. These tumours are seldom curable by radical surgery, but patients may remain free from symptoms for many years.

Adenoma, Islet Cell↗

Typhoid ileal perforations: a retrospective study.

This report examines the characteristics of 124 patients with typhoid ileal perforation treated over a 17-year period ending in 1986. Three adverse prognostic determinants were identified: prolonged fever/perforation interval, prolonged perforation/operation interval and multiple perforations. Simple closure was performed in 74 patients with a mortality of 31.1%, and trimming of the ulcer with closure in 38 patients with a 7.9% mortality.

Adolescent↗

First case of subcutaneous zygomycosis caused by Saksenaea vasiformis in India.

The first case of subcutaneous zygomycotic infection caused by Saksenaea vasiformis in a rice mill worker from India is described. The infection, confined to the man's left foot, showed multiple draining sinuses, inflammation, and intermittent low-grade fever following a crushing injury when a log fell on his foot. Histopathologic examination of two biopsy specimens, taken at 3-wk intervals, revealed the presence of broad, sparsely septate, branched, hyaline hyphae characteristic of a zygomycete. When they were grown on a nutritionally deficient medium, two cultures isolated from the biopsied tissues formed numerous, vase-shaped sporangia typical of S. vasiformis. Necrosis of the affected area led to amputation of the fore part of the foot. A split thickness graft was well accepted, and treatment with potassium iodide, following the graft, cured the infection.

Adult↗

Relentless progression of venous obstruction in a case of Budd-Chiari syndrome related to heterozygous protein C deficiency.

A 28-year-old man with heterozygous protein C deficiency presented with Budd-Chiari syndrome resulting from hepatic vein obstruction. Over the next 40 months, standard oral anticoagulant therapy and multiple percutaneous interventions aimed at relieving hepatic vein obstruction could not prevent progression of the disease ultimately to cirrhosis and death. Serial angiography provided unique documentation of the relentless progression of hepatic venous obstruction, which was related to the disease and to iatrogenic factors. Operative findings obtained during unsuccessful mesocaval shunt surgery revealed that venous disease in protein C deficiency can be far more extensive than is clinically anticipated. The ineffectiveness of therapy in this patient may be related to standard oral anticoagulant therapy being insufficient to offset the risk of recurrent thrombosis and progression to an advanced stage of vascular damage.

Adult↗

Palliative gastrectomy in advanced gastric cancer: is it worthwhile?

BACKGROUND: Gastric cancer remains one of the leading causes of cancer-related deaths. Many patients present late, and therefore, resections are often palliative in nature. The aim of this study was to assess the feasibility of resectional operation and the survival advantage of surgical resection in advanced gastric cancer. The effectiveness of palliation and the quality of life following operation for gastric cancer were assessed. METHODS: One hundred and fifty-one patients who underwent operation for gastric cancer at a tertiary centre in South India during a 5-year period between 1999 and 2003, were included in this study. Four sites of tumour spread were used as indicators of incurability in these patients. These were unresectable primary tumour or macroscopic residual primary tumour (T+), unresectable lymph nodal metastasis (L+), unresectable liver metastasis (H+) and peritoneal metastasis (P+). The resectability rate and survival were assessed in relation to these four factors. RESULTS: The resectability rate decreased as the number of sites of tumour spread increased. The overall survival was significantly better in the subgroup of patients who had a resectional operation (total gastrectomy or subtotal gastrectomy), as opposed to the subgroup who had non-resectional operation (exploratory laparotomy or laparotomy with gastrojejunostomy) (P = 0.0003). This survival advantage of resectional operation disappeared when more than two sites of tumour spread were present. The quality of life was significantly better when a resection operation was carried out. CONCLUSION: In advanced gastric cancer, palliative resection has a survival advantage if the tumour spread is restricted to two or less sites. Patients who undergo resectional operation have better palliation of symptoms and their postoperative quality of life is significantly better.

Adenocarcinoma↗

Carcinoid tumor of common hepatic duct.

Primary carcinoid tumors of the biliary tract are extremely rare. We report a 36-year-old woman with recurrent acute cholangitis who was diagnosed to have a carcinoid in the common hepatic duct, with enlarged local nodes. She underwent local resection. I-131 metaiodobenzyl guanidine (MIBG) scanning postoperatively showed no uptake in the tumor bed.

Acute Disease↗

Surgical presentation of melioidosis in India.

BACKGROUND: Melioidosis, the disease caused by Burkholderia pseudomallei, is common in Southeast Asia. It has also been reported from India, where some investigators feel it is under-diagnosed and under-reported. We report our experience with melioidosis presenting as abscesses at unusual sites. METHODS: All consecutive patients with culture proven B. pseudomallei, who presented to a single surgical unit between 1995 and 1998, were evaluated. RESULTS: Three patients presented with splenic abscesses and one with a soft tissue abscess in the neck. One patient developed septicaemia. All patients responded favourably to ceftazidime and/or co-trimoxazole which was started as soon as the diagnosis was confirmed. CONCLUSION: Melioidosis is under-diagnosed in India, probably due to a low index of suspicion of this disease among clinicians. It should be considered as a possibility when abscesses are encountered at unusual sites. The pus must then be cultured to identify the causative agent.

Abscess↗

Duodenal ulcer perforation: have H2 receptor blockers reduced mortality?

Elective surgery for peptic ulcer is becoming rare with the use of more effective medical therapy. However, life threatening complications have not reduced in number. A retrospective study was carried out to compare perforation rates per 10,000 admissions, mortality rates from perforated duodenal ulcers per 10,000 admission and the proportion of patients with perforated duodenal ulcer who died, before and after the introduction of H2 receptor blockers in a large teaching hospital in South India. Perforation rates were not significantly different between the two periods under study. There was a small, but statistically significant (p = 0.047) drop in mortality per 10,000 admissions and a significant drop in proportion of patients with perforated ulcer who died (p = 0.028). Inspite of effective medical therapy, there is a subset of patients with duodenal ulcer who continue to perforate. Efforts should be directed towards identifying this subset and offering them early surgery. Mortality rates have not changed significantly.

Duodenal Ulcer↗

The abdominal cocoon and an effective technique of surgical management.

The Abdominal Cocoon is a very rare cause of small bowel obstruction. It is caused by encapsulation of the small bowel by a fibrous membrane. This tropical disease, seen in young females, has also been reported in males. This is one of the largest series of the Abdominal Cocoon, with five new patients (3 males and 2 females) being reported. The traditional surgical treatment of choice is by lysis of adhesions. All patients in this case series had small bowel intubation done in addition to adhesiolysis. Although small bowel intubation is an established procedure for various causes of recurrent small bowel obstruction, to our knowledge this is the first report of its use in the management of the Abdominal Cocoon. We report our surgical technique in the management of this rare disease.

Adolescent↗