Biomedical subjects
Publications and source records attributed to R N Kataria.
Liver biopsy rarely leads to complications in a non-cirrhotic liver. We describe here a case of a biliary cyst of the liver that developed after a liver biopsy. It was successfully treated with surgery.
We report three cases of primary cutaneous zygomycosis due to either Saksenaea vasiformis (two patients) or Apophysomyces elegans (one patient). Extensive surgical debridement helped two patients recover from their infections. The underlying disease in the one patient who died was diabetes mellitus. We reviewed the literature on primary cutaneous zygomycosis and found that S. vasiformis and A. elegans were the etiologic agents in 16 and 13 earlier cases, respectively.
We report a rare case of carcinosarcoma of parotid gland in a pleomorphic adenoma. The tumor showed two distinct heterologous components, a ductal carcinoma and an osteosarcoma. The latter has not been described so far in such tumors arising in pleomorphic adenoma of parotid gland.
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A case of villous adenoma of the ampulla of Vater in a 40 year old male is described. The clinical significance of this rare tumour is discussed and the relevant literature reviewed.
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A review of the literature concerning the causation of prolonged Q-T interval syndrome is presented. A fatal case, 50 years of age, with this rare entity is also reported, in whom a sudden cardiac arrest occurred 46 min after induction of anaesthesia. An outline for the successful anaesthetic management of patients with prolonged Q-T interval syndrome is suggested.
The anaesthetic management of two cases of insulinoma treated by distal pancreatectomy is presented. Stress is laid on pre-operative and intra-operative glucose administration in sufficiently high quantity. Pre-operative corticosteroid therapy is better avoided. Dextrose infusion should be stopped soon after removal of the tumour to prevent excessive hyperglycemic response in the postoperative period. Methyoxyflurane was used because it tends to raise the blood sugar level. Pancuronium bromide was preferred because of the stable cardiovascular conditions it produces.
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The serum levels of total immunoreactive insulin (IRI) and proinsulin-like component (PLC) in the fasting state and following the administration of insulin secretagogues in 5 patients with organic hyperinsulinism and age and sex matched normal subjects are reported. Diagnosis of organic hyperinsulinism could be established in all instances on the basis of the inappropriately high total serum IRI levels for the corresponding blood glucose values; such an abnormal relationship was not seen in normal subjects, and was further enhanced by insulin secretagogues. Unrestrained insulin secretion in organic hyperinsulinism was enhanced following the administration of glucose, tolbutamide, glucagon or amino acids; the last 2 stimuli are known to be ineffective in causing insulin secretion in the presence of hypoglycemia in normal subjects. Four patints had insulinomas and one probably had islet cell hyperplasia or abnormal function of islet cells. Chromatography of serum IRI to quantitate PLC is a useful adjunct to the diagnosis of organic hyperinsulinism as in the fasting state the proportion of PLC is always elevated, above the normal range of 5-22%. Following the administration of insulin secretagogues there was pronounced increase in total serum IRI in organic hyperinsulinism but the proportion of PLC generally decreased, suggesting thereby that mojor increase in IRI was due to release of stored granular IRI which is known to have a low proportion of PLC.
Parathyroid carcinoma is a rare cause of primary hyperparathyroidism and these tumours are usually hyperfunctional as opposed to other malignant endocrine tumors. Surgery is the only effective treatment while nonsurgical modalities yield poor results. We report a patient, who presented with palpable mass in the neck and severe hypercalcemia. He underwent debulking surgery and received allendronate, calcitonin, dacarbazine followed by in- situ alcohol instillation with some success.
A case of follicular variant of papillary thyroid carcinoma presenting with a right maxillary mass is described. This is perhaps the first instance of maxillary metastasis from papillary thyroid carcinoma.
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AIM: Perforation is the commonest complication of duodenal ulcer. Helicobacter pylori is found in 95% patients with duodenal ulcer. However, there is paucity of reports on prevalence of H. pylori infection in patients with duodenal ulcer perforation. We, therefore compared the incidence of H. pylori infection in patients with duodenal ulcer perforation with the incidence in patients having complicated duodenal ulcers and non-ulcer dyspepsia. PATIENTS AND METHODS: The study was conducted on 45 patients (complicated duodenal ulcer 15, duodenal ulcer perforation 15, non-ulcer dyspepsia 15). Per-operative punch antral biopsies were taken in patients with duodenal ulcer perforation whereas endoscopic punch biopsies of antrum were taken in patients with non-ulcer dyspepsia. The criteria for H. pylori positivity was i) growth of H. pylori on culture, ii) combination of rapid urease test (RUT) and Giemsa staining, combination of RUT and Gram stain being positive for H. pylori. RESULTS: While 9 of 15 cases with complicated duodenal ulcer, 7 of 15 cases with non-ulcer dyspepsia were positive for H. pylori, none of the patients with duodenal ulcer perforation tested positive for H. pylori (p < 0.000). All patients with perforated duodenal ulcer had histological gastritis (H. pylori -ve). Fourteen of 15 patients (9 H. pylori +ve, 5 H. pylori -ve) with complicated duodenal ulcer and 9 of 15 patients (7 H. pylori +ve) with non-ulcer dyspepsia had histological gastritis. CONCLUSION: Patients with duodenal ulcer perforation do not have H. pylori infection. H. pylori negative patients of duodenal ulcer may have more predilection for perforation.