Biomedical subjects

Sachin Goel

Publications and source records attributed to Sachin Goel.

4 recordsLinked to original sources

PubMed2006

Predictors of cancer in patients with suspected pancreatic malignancy without a tissue diagnosis.

BACKGROUND: The aim of this study was to identify predictive factors for malignancy in patients undergoing surgery for suspected pancreatic cancer without a preoperative tissue diagnosis. METHODS: Patients were identified by International Classification of Diseases Ninth Revision and current procedural terminology codes, respectively, for pancreatic cancer and pancreaticoduodenectomy at a single tertiary referral center between January 1998 and May 2004. Data were collected retrospectively by chart review. Multivariate analysis of potential predictive factors was performed. RESULTS: A total of 150 patients underwent surgery for documented or suspected pancreatic malignancy; 102 did not have a preoperative tissue diagnosis of cancer. Of these, 75 had neoplastic disease at surgery. Average weight loss was greater for those with malignancy (13.5 vs. 4.8 lbs; P = .014) as was mean bilirubin (6.1 vs. 3.3 mg/dL; P = .006). In multivariate analysis, a combination of weight loss >20 lbs, bilirubin >3 mg/dL, and CA 19-9 >37 U/mL had both a specificity and positive predictive value of 100% for predicting malignancy regardless of bile duct abnormalities or mass lesions on endoscopic retrograde cholangiopancreatography or endoscopic ultrasound, respectively. The positive predictive value decreased to 89.5% when any 2 of these findings were present. The presence of a mass on CT or EUS alone had a sensitivity of 84%; however, no other single finding had a sensitivity >65%. CONCLUSIONS: In patients suspected of having a pancreatic malignancy, weight loss, hyperbilirubinemia, and increased CA 19-9 level may be predictive of a final cancer diagnosis. Surgical exploration should be considered in these patients even in the absence of a preoperative tissue diagnosis.

Bilirubin↗

PubMed2005

Acute pancreatitis in patients on chronic peritoneal dialysis: an increased risk?

OBJECTIVES: The primary aim of this study is to determine if patients with end-stage renal disease (ESRD) on peritoneal dialysis (PD) have a higher risk of developing acute pancreatitis (AP) than patients on hemodialysis (HD). The secondary aim is to compare the outcomes of AP between the two groups. METHOD: This is a retrospective case-control study. The study groups consisted of all patients initiated on HD and PD between January 1, 1998 and August 1, 2003. AP was identified using ICD-9 codes. Statistical analysis was carried out using Poisson regression, Kaplan-Meier curve, log-rank test, and Cox regression. RESULTS: One thousand two hundred and thirty-three and 160 eligible patients were identified in the HD and PD groups, respectively. Twenty-eight patients had AP. Eight patients were excluded as they had identifiable etiologies for AP. Of the remaining 20 patients with AP, 14 were in the HD group and 6 were in the PD group (p= 0.009). Incidence of AP was 18.4 per 1,000 person-years in the PD group and 6.5 per 1,000 person-years in the HD group (p= 0.033). Kaplan-Meier curves showed a significant difference in AP-free survival between the two groups (log-rank p= 0.026). Using time-dependent analysis, the hazard ratio for AP in PD patients after adjustment for age and sex was 3.94 (p= 0.006). There was no observed difference in length of hospital stay and ICU stay. All cases of AP were interstitial. There were no complications or deaths related to AP. CONCLUSION: PD is a risk factor for AP. There is no statistical difference in AP-related mortality and morbidity between HD and PD.

Acute Disease↗

PubMed2003

AltAVisT: comparing alternative multiple sequence alignments.

UNLABELLED: We introduce a WWW-based tool that is able to compare two alternative multiple alignments of a given sequence set. Regions where both alignments coincide are color-coded to visualize the local agreement between the two alignments and to identify those regions that can be considered to be reliably aligned. AVAILABILITY: http://bibiserv.techfak.uni-bielefeld.de/altavist/.

Color↗

PubMed2002

Case-control comparison of endoscopic gastroplication with laparoscopic fundoplication in the management of gastroesophageal reflux disease: early symptomatic outcomes.

Endoscopic gastroplication is a new technique in the management of gastroesophageal reflux disease. No comparisons of this technique with laparoscopic fundoplication have been done. Twenty-seven patients with symptoms of reflux disease were evaluated with upper endoscopy, esophageal manometry, and 24-hour esophageal pH monitoring, as well as a symptom severity questionnaire. Patients then underwent endoscopic gastroplication with use of the Bard Interventional Endoscopic Suturing System. Patients completed the symptom severity questionnaire 6 weeks after the procedure. These 27 patients were matched for age, gender, and pre-procedure symptom score with patients in a prospectively gathered database of laparoscopic antireflux operations. Twenty-one patients (78%) in the endoscopic gastroplication group were satisfied with their symptomatic outcome, 2 (7%) were neutral, and 4 (15%) were dissatisfied. In comparison, there were 26 satisfied patients (96%) in the laparoscopic group ( < 0.01). Median symptom scores improved similarly in both groups, with no statistically significant difference. The patients who were dissatisfied had a mean improvement in symptom score of 10, compared with 27 for the satisfied patients ( < 0.01). Endoscopic gastroplication is a viable alternative to laparoscopic fundoplication in selected patients. Nevertheless, approximately one quarter of patients will have no improvement, which is much more than those undergoing laparoscopic fundoplication.

Adult↗