Publications by authors named "Jai D Wig"

Article Synopsis
  • Surgical intervention is often necessary for patients with acute corrosive injuries, but it comes with high risks of complications and mortality, as shown in a study of 170 patients where 14% required emergency surgery.
  • The most common reasons for surgery were peritonitis and mediastinitis, with patients experiencing high post-operative mortality rates.
  • Despite the initial dangers, a significant number of survivors (72%) were able to undergo successful reconstructive surgeries during follow-up after the acute phase had passed.*
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Backgrounds/aims: The course of severe acute pancreatitis (SAP) complicated by hemorrhage is associated with poor outcome.

Methods: Twenty-four (13%) out of 183 cases of SAP had hemorrhagic complications- 12 intraabdominal & 12 intraluminal, 13 had major & 11 had minor and 16 had de-novo & 8 post-surgical bleeding. The mean duration of pancreatitis prior to bleeding was 27±27.

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 There is sparse data on the endoscopic management of caustic-induced gastric outlet obstruction (GOO). The present retrospective study aimed to define the response to endoscopic balloon dilatation (EBD) in such patients and their long-term outcome.  The data from symptomatic patients of caustic-induced GOO who underwent EBD at our tertiary care center between January 1999 and June 2014 were retrieved.

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We analyzed our experience with management of gastroduodenal artery (GDA) pseudoaneurysms associated with chronic pancreatitis using a multidisciplinary approach. We treated 10 patients with GDA pseudoaneurysms (all men, aged 24-62 year) who underwent treatment during April 1998 to December 2016. All had presented with recent hematemesis and/or melena.

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Back Ground: Metastatic deposits in spleen are rare owing to its physiological functions and sharp angle of splenic artery with coelic axis.

Case Report: We report a case of a 53year old male with clear cell carcinoma of left kidney. Isolated splenic metastasis was detected on a follow up PET CT scan 2 months post radical nephrectomy.

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The incidence of colorectal cancer (CRC) is increasing rapidly in Asian countries during the past few decades, but no comprehensive analysis has been done to find out the exact cause of this disease. In this study, we investigated the frequencies of mutations and expression pattern of K-ras, APC (adenomatosis polyposis coli) and p53 in tumor, adjoining and distant normal mucosa and to correlate these alterations with patients clinicopathological parameters as well as with the survival. Polymerase chain reaction (PCR)-restriction digestion was used to detect mutations in K-ras and PCR-SSCP (Single Strand Conformation Polymorphism) followed by DNA sequencing was used to detect mutations in APC and p53 genes.

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Objectives: The present study screened the SMAD4 gene in an Indian population of patients with pancreatic ductal adenocarcinoma (PDAC) for the presence of homozygous deletions and mutations. The effect of these genetic alterations on Smad4 protein expression and patient survival was also evaluated.

Methods: This study was conducted on surgically resected paired normal and tumor tissue samples of 25 consecutive patients with PDAC.

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Background: Biliary tract involvement in acute necrotizing pancreatitis is rare.

Case Report: We report a case of a 53-year-old man who had a pancreatic choledochal fistula complicating acute necrotizing pancreatitis. The fistula was suspected at computed tomography and confirmed at surgery.

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Background: Central venous access devices for chemotherapy are being used extensively in patients with cancer. Spontaneous fracture and migration of the catheter is uncommon. We present the uncommon occurrence of a fracture and spontaneous migration of the fragment into the internal jugular vein as a delayed complication of a central venous access catheter implanted for chemotherapy administration.

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Background: Smad4 is the common mediator of the tumor suppressive functions of TGF-beta. Smad6 and Smad7 are the antagonists of the TGF-beta pathway. This study investigates the differential protein expressions of Smad4, Smad6 and Smad7 in tumor as compared to normal tissue of pancreatic ductal adenocarcinoma (PDAC) and compares them with clinicopathological parameters and patient survival.

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Background: Spontaneous intramural intestinal hematoma in patients on oral anticoagulation therapy is rare.

Materials And Methods: Case report.

Results: We report a spontaneous intramural jejunal hematoma presenting with small bowel obstruction in a patient who was on oral anticoagulation therapy with acitrom following aortic valve replacement.

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Pancreatic cancer is notorious for its late presentation, early and aggressive local invasion, metastatic potential, and poor outcome. It presents at a clinically advanced stage that precludes the possibility of surgical resection in most cases and shows constitutive resistance to chemotherapy and radiotherapy in others. As a result, mortality from this disease parallels its incidence rates.

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Background: Adult intussusception is infrequently encountered in Asians. The diagnosis is often late because of the variable presentation. The optimal treatment is not universally agreed upon.

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Objective: To compare neutral and positive enteral contrast media for MDCT enteroclysis (MDCTE) in various small bowel diseases.

Materials And Methods: 40 patients with suspicion of small bowel diseases were divided randomly into two equal groups. In one group, water was used as neutral enteral contrast and in other group, 2% water soluble iodinated contrast was used as positive enteral contrast.

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Context: Severe acute pancreatitis is associated with high mortality with infectious complications being the most common cause of mortality.

Objective: To analyze the prevalence and characteristics of pancreatic and extrapancreatic infection in patients with severe acute pancreatitis.

Design: Prospective study over a one-year period.

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Aim: To investigate p16 gene methylation and its expression in 30 patients with sporadic colorectal adenocarcinoma in a North Indian population.

Methods: Methylation specific polymerase chain reaction was used to detect p16 gene methylation and immunohistochemistry was used to study the p16 expression in 30 sporadic colorectal tumors as well as adjoining and normal tissue specimens.

Results: Aberrant promoter methylation of p16 gene was detected in 12 (40%) tumor specimens, whereas no promoter methylation was observed in adjoining and normal tissue.

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Context: Non-operative strategies are gaining preference in the management of patients with severe acute pancreatitis.

Objective: The present study was undertaken to evaluate the efficacy of a non-operative approach, including percutaneous drainage, in the management of severe acute pancreatitis.

Design: Prospective study.

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Background: To assess the feasibility and safety of a pancreas preserving operative technique in the management of isolated complete pancreatic neck transection following blunt abdominal trauma.

Methods: Two patients with isolated blunt fracture of the pancreatic neck underwent pancreas preserving procedure comprising of oversewing of the proximal pancreas and Roux-en-Y pancreatico jejunostomy to the distal remnant. A feeding jejunostomy tube was placed for postoperative nutritional support in these patients.

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Chemokines have been known to play a critical role in pathogenesis of chronic pancreatitis and acinar cell death. However, the role played by one of the CXC chemokines: CXCL10 in regulation of acinar cell death has remained unexplored. Hence, this study was designed to assess the role of CXCL10 promoting apoptosis in ex vivo cultured acinar cells.

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Context: To assess the feasibility and safety of a pancreas-preserving total duodenectomy in the management of severe duodenal injury caused by abdominal trauma.

Case Report: Two patients with both extensive injury of the duodenum and diffuse peritonitis underwent pancreas preserving total duodenectomy at our tertiary care centre. These two young male patients (age 20 and 22 years) presented 2 days and 6 hours respectively following blunt abdominal trauma.

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Background: Nutritional support in corrosive injury patients is traditionally achieved through total parenteral nutrition (TPN) or jejunostomy feeding (JF). There are no reports of nasoenteral tube feeding in patients with corrosive ingestion.

Objective: We report our experience with nasoenteral tube feeding (NETF) and compare the outcome of these patients with those undergoing JF.

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Context: The clinical course of severe acute pancreatitis may be complicated by organ failure.

Objective: We studied the incidence of organ failure and the correlation of the extent of necrosis and infective necrosis with organ failure.

Methods: The medical records of 161 patients with severe acute pancreatitis and persistent organ failure over a 4-year period were studied.

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Background: The gene promoter region of human telomerase reverse transcriptase (hTERT) contains binding sites for c-myc and E2F1 as well as CpG islands, suggesting regulation by genetic factors and epigenetically by methylation. Hence, the effect of the demethylating agent 5-azacytidine and silencing of c-MYC and E2F1 genes on its expression and consequently on telomerase activity were studied in pancreatic cancer-derived cell lines.

Methods: MIaPaCa-2 and PANC-1 cell lines were transfected with SiRNA against E2F1 and c-MYC genes separately as well as along with 5-azacytidine treatment.

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