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Sadiq S Sikora

Publications and source records attributed to Sadiq S Sikora.

27 records · Page 2Linked to original sources
PubMed2002

Early gallbladder cancer.

BACKGROUND: The majority of patients with gallbladder cancer (GBC) have advanced disease at the time of diagnosis and are unresectable. Longterm survival is usually seen in a subset of patients with early GBC (EGBC)-cancer confined to the mucosa (pT1a) and muscularis (pT1b). Management guidelines of EGBC are not yet defined and are controversial. The purpose of this article is to evaluate the diagnostic aspects and effects of resectional procedures on survival outcome in patients with EGBC. STUDY DESIGN: EGBC was defined as cancer confined to the mucosa (pT1a) or muscularis (pT1b) according to the TNM classification. Clinicopathological details and survival data of 14 patients who had EGBC were analyzed. There were 9 women and 5 men, with a mean age of 60 years. RESULTS: A definite preoperative diagnosis was possible in only three patients and three patients were diagnosed at operation; the majority of patients were diagnosed incidentally after cholecystectomy for associated gallstones. Two patients underwent extended cholecystectomy and 12 patients underwent simple cholecystectomy. Two patients had pT1a and 12 had pT1b lesions. Mean (SD) survival was 71.5 (12.2) months and median survival was 42 months. There were five treatment failures with locoregional recurrence and death; all with pT1b tumors were treated by simple cholecystectomy. Cumulative 1-, 3-, and 5-year survival was 92%, 68%, and 68% respectively [corrected]. CONCLUSIONS: Simple cholecystectomy is an adequate treatment only for mucosal GBC. Patients with pT1b tumors require extended cholecystectomy. Incidental GBC extending up to the muscularis merits early reoperation for completion of extended cholecystectomy, which offers the only chance of cure.

Adult↗
PubMed2002

Pancreatic abscess: 10 years experience.

BACKGROUND: Secondary infections of pancreatic and peripancreatic necrosis account for most of the deaths following acute pancreatitis. These infections occur in the form of 'infected pancreatic necrosis' and 'pancreatic abscess'. The latter is a rare complication of acute pancreatitis in comparison with the former. METHODS: Twenty-one patients with pancreatic abscess were managed over a 10-year period at a tertiary care centre in Northern India. The present report details the clinical profile, investigations performed and management strategy (surgery and intervention radiology) of these patients. The role of surgery and percutaneous catheter drainage (PCD) in the management of pancreatic abscess is discussed, with emphasis on the successful outcome seen in a properly selected group of patients managed by PCD. RESULTS: Of the 21 patients, 12 were managed by percutaneous intervention, nine were managed surgically (of these, two had a prior PCD) and two patients were managed conservatively. The overall mortality was 9.5% (2/21). Thus, percutaneous management was suitable for 57% patients, was successful in 83.3%, with a mortality of 8.3%. Surgical therapy alone was offered to 33% of patients, was successful in 85.7%, with a mortality of 14.2%. Complications were seen in four of the nine patients managed by percutaneous drainage alone and eight of the nine patients managed surgically. CONCLUSIONS: Pancreatic abscess is a potentially lethal complication in patients recovering from acute pancreatitis. Early diagnosis and prompt intervention with careful selection of patients based on computed tomography imaging for surgical or percutaneous radio-logical management, is met with a successful outcome in a majority of patients. The roles of surgery and PCD are complementary.

Abscess↗
PubMed2002

Tropical calcific pancreatitis: strong association with SPINK1 trypsin inhibitor mutations.

BACKGROUND & AIMS: Tropical calcific pancreatitis (TCP) is a chronic pancreatitis unique to developing countries in tropical regions. The cause of TCP is obscure. Whereas environmental factors, such as protein energy malnutrition and ingestion of cassava, have been implicated, a genetic predisposition to the disease also may be important. In the present study we report on mutations in the serine protease inhibitor, Kazal type 1 (SPINK1) gene in north Indian patients with TCP. METHODS: We studied 66 unrelated TCP patients (44 men, 49 with diabetes, and 6 with family history of TCP), 25 relatives, and 92 healthy control subjects. Samples were analyzed for SPINK1 variants (-53C>T, L14P, N34S, P55S, and 272T>C) and cationic trypsinogen (PRSS1) variants (A16V, K23R, N29I, and R122H) by melting curve analysis. RESULTS: Twenty-nine patients (44%) carried the N34S missense mutation, of whom 9 (14%) were homozygotes. In contrast, only 2 (2.2%) control subjects were N34S heterozygotes (prevalence ratio 20.2; 95% confidence interval 5.0-81.8; P < 0.0001 vs. TCP). The severity of pancreatitis did not differ between TCP patients with or without N34S, or among those heterozygous or homozygous for N34S. Among TCP patients with or without diabetes, the frequency of N34S carriers (43% vs. 47%) and N34S homozygotes (14% vs. 12%) was similar. CONCLUSIONS: TCP is highly associated with the SPINK1 N34S mutation. The high prevalence of N34S in TCP patients with and without diabetes suggests that these 2 subtypes have a similar genetic predisposition. The genetic predisposition to TCP resembles, at least in part, the idiopathic chronic pancreatitis found in industrialized countries.

Adult↗
PubMed2001

Prospective study of pancreatic b-cell and exocrine function following duct decompression in tropical calcific pancreatitis.

Tropical calcific pancreatitis (TCP) is a chronic, nonalcoholic pancreatitis, which is limited to developing countries. In this condition, surgical decompression of the pancreatic duct consistently leads to relief of abdominal pain. However, no data are available on the effect of such intervention on pancreatic function. The aim of the present study was to prospectively evaluate b-cell and exocrine function following ductal drainage in patients with TCP. We studied 14 consecutive TCP patients who underwent ductal decompression for abdominal pain (longitudinal pancreaticojejunostomyin 12 patients, endoscopic sphincterotomy and ductal stenting in 2 subjects). Six patients who refused similar intervention served as controls. Patients were evaluated prospectively (median follow-up 13 months) for pain score, fasting and oral glucose stimulated plasma C-peptide, serum trypsin, and fecal chymotrypsin. After intervention, 1 patient died 2 months after surgery, and 2 others were lost in follow-up. The pain score improved significantly following duct decompression (median 8.0 vs. 0, p < 0.01), while in the control group there was no change in pain score (7.0 vs. 7.0). There was no change in b-cell function after intervention (fasting plasma C-peptide [mean +/- SEM] 0.41 +/- 0.08 vs. 0.42 +/- 0.05 nmol/l; peak plasma C-peptide 2.24 +/- 0.20 vs. 2.32 +/- 0.24 nmol/l). Fecal chymotrypsin was diminished in all patients prior to intervention (1.9 +/- 0.7 U/g), and did not normalize after ductal drainage in any subject. Serum trypsin levels were variable, being elevated in 29% and diminished in 47% of subjects. All 4 subjects with elevated baseline trypsin levels had a sharp fall after intervention (1020 vs. 175 ng/ml). However, serum trypsin did not normalize after ductal drainage in any patient with a diminished baseline value. In conclusion, patients with TCP have significant reduction in abdominal pain after decompression of the main pancreatic duct. However, there is no significant change in b-cell function. A fall in elevated serum trypsin suggests that there may be relief of subclinical inflammation after intervention; however, there is no improvement in exocrine function after a follow-up of 1 year.

Abdominal Pain↗
PubMedDate not supplied

Morphological changes in bile ducts following preoperative biliary stenting.

OBJECTIVES: To analyze the morphological changes in bile ducts following endobiliary stent insertion, and consequent technical problems encountered at surgery. METHODS: Data on bile duct morphology--gross (luminal diameter and wall thickness) and microscopic (histological changes in bile duct wall graded semiquantitatively)--and operative parameters related to bile duct dissection (grade of difficulty in dissection) were collected prospectively in 31 consecutive patients undergoing pancreatico-duodenectomy. These data were compared between patients who had undergone preoperative endoscopic biliary stent placement (n=17) and those who had not (n=14). RESULTS: Mean duration of stenting before surgery was 34 (range 10-120) days. Stented ducts were significantly narrower (luminal diameter 9 [7-12] mm vs. 17.5 [8-23] mm; p=0.0001) and had thicker walls (2.3 [1.3-3.5] mm vs. 1.85 [0.8-2.2] mm; p=0.004) compared to non-stented ones. On microscopy, stented ducts had advanced grades of submucosal gland hypertrophy, fibrosis and inflammatory cell infiltrate. Difficulty in bile duct dissection was encountered more often in patients who had been stented than in those without stents, though the difference was not statistically significant. CONCLUSION: Endobiliary stent placement results in significant morphological and fibroproliferative inflammatory changes in bile ducts, making dissection difficult.

Adult↗
PubMedDate not supplied

Spontaneous perforation--a rare complication of choledochal cyst.

We report a 2-year-old girl with spontaneous perforation of choledochal cyst. Preoperative diagnosis was possible by hepatobiliary scintigraphy. In view of emergency presentation and bile peritonitis, management was a staged procedure with peritoneal lavage and T-tube drainage of the biliary system, followed by excision of the cyst and Roux-en-Y hepatico-jejunostomy 3 months later.

Child, Preschool↗
PubMedDate not supplied

Surgical management of corrosive strictures of stomach.

BACKGROUND: Corrosive injuries of the upper aero-digestive tract are a frequent cause of morbidity in India. We report here our institution's experience in managing patients with corrosive strictures of the stomach. METHODS: Records of 28 patients who underwent definitive surgery for corrosive strictures of the stomach in our institution over a 15-year period were reviewed. RESULTS: The main presenting complaints were vomiting (75%), dysphagia (46%) and significant weight loss (100%). Pre-operative evaluation included barium and endoscopic studies. Most patients had antro-pyloric strictures (n=22); in 6 patients, however, near-total or total gastric involvement was observed. Thirteen (46%) patients had associated strictures of the esophagus; of these, 7 responded to esophageal dilation. Strictures of the stomach were managed with resectional procedures like distal gastrectomy (n=16), subtotal gastrectomy (1) or total gastrectomy (3) and esophagogastrectomy (1) in 21 (75%) patients. The remaining 7 patients underwent bypass procedures like gastrojejunostomy (5), stricturoplasty (1), and colonic bypass of esophagus and stomach (1). Three patients had entero-cutaneous fistulae in the postoperative period. One patient died in hospital of septicemia and malnutrition. CONCLUSIONS: In patients with corrosive strictures of the stomach, surgery, tailored according to the extent of gastric involvement and presence of associated esophageal strictures, gives excellent results.

Adolescent↗
PubMedDate not supplied

Xanthogranulomatous cholecystitis: differentiation from associated gall bladder carcinoma.

Xanthogranulomatous cholecystitis (XGC) is a destructive form of chronic cholecystitis. In some patients it coexists with gall bladder carcinoma (GBC) and is often difficult to differentiate between the two. Present study was performed with an aim to identify differentiating features of XGC and those of XGC with associated Gall bladder carcinoma (XGC ass. GBC). A retrospective analysis of prospectively maintained data of 4800 cholecystectomies performed from January 1988 to December 2003 was carried out. On histopathology 453 cholecystectomy specimens revealed XGC. These patients were divided into two groups, those with associated GBC (n=26) and those without GBC (n=427). Clinical, radiological and operative findings were compared in these two groups. P value of < 0.05 was considered statistically significant. The incidence of associated GBC in present series was 6%. XGC patients with associated GBC, at presentation were older than those with XGC alone and there was male preponderance. XGC patients with associated GBC were more likely to present with anorexia, weight loss, palpable lump and jaundice. Gall stones were present in majority of patients in both the groups. GB wall thickening, GB mass, enlarged abdominal lymph nodes may be found on imaging in both the groups but more so in patients with associated GBC. Both preoperative FNAC and peroperative FNAC/imprint cytology failed to reveal the associated GBC with XGC in some patients.

Adolescent↗