Research Topics
| A TorquatiSummaryAffiliation: Vanderbilt University Country: USA Publications
Research Grants
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Publications
Effect of gastric bypass operation on Framingham and actual risk of cardiovascular events in class II to III obesityAlfonso Torquati
Department of Surgery, Vanderbilt University, Nashville, TN 37232 2577, USA
J Am Coll Surg 204:776-82; discussion 782-3. 2007..The aim of this study was to determine the effect of gastric bypass operation on actual and Framingham risk of coronary heart disease (CHD) events in class II to III obesity...
Laparoscopic myotomy for achalasia: predictors of successful outcome after 200 casesAlfonso Torquati
Department of Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA
Ann Surg 243:587-91; discussion 591-3. 2006..Laparoscopic myotomy is the preferred treatment of achalasia. Our objectives were to assess the long-term outcome of esophageal myotomy and to identify preoperative factors influencing the outcome...
Heller myotomy vs Heller myotomy plus Dor fundoplication: cost-utility analysis of a randomized trialA Torquati
Department of Surgery, Vanderbilt University Medical School, Nashville, TN 37232, USA
Surg Endosc 20:389-93. 2006..The objective of this study was to estimate the cost-effectiveness of Heller myotomy plus Dor fundoplication compared with Heller alone in patients with achalasia...
Is Roux-en-Y gastric bypass surgery the most effective treatment for type 2 diabetes mellitus in morbidly obese patients?Alfonso Torquati
Department of Surgery, Vanderbilt University Medical School, Nashville, Tennessee 37232, USA
J Gastrointest Surg 9:1112-6; discussion 1117-8. 2005..Laparoscopic RYGBP resulted in significant resolution of T2DM. Peripheral fat distribution (smaller waist circumference) and absence of insulin treatment were independent and significant predictors of complete resolution of T2DM...
Predictors of early quality-of-life improvement after laparoscopic gastric bypass surgeryAlfonso Torquati
Department of Surgery, Vanderbilt University, Room D5219 MCN, Nashville, TN 37232, USA
Am J Surg 193:471-5. 2007..Therefore, the aim of this study was to assess the impact of patient demographics and comorbidities on short-term QOL improvement after laparoscopic gastric bypass (LGB) surgery...
A comparison of 399 open and 568 laparoscopic gastric bypasses performed during a 4-year periodN Sekhar
Department of Surgery, Vanderbilt University Medical Center, D 5219 MCN, Nashville, TN 37232, USA
Surg Endosc 21:665-8. 2007..The authors analyzed the short- and long-term results of this procedure compared with those for the same procedure using the laparotomy approach over the same period...
Long-term follow-up study of the Stretta procedure for the treatment of gastroesophageal reflux diseaseA Torquati
Department of Surgery, Vanderbilt University Medical Center, D-5219 MCN, Nashville, TN 37232, USA
Surg Endosc 18:1475-9. 2004..The treatment effect is durable beyond 2 years, and 56% of patients had discontinued their user of all antisecretory drugs...
Risk of secondary hyperparathyroidism after laparoscopic gastric bypass surgery in obese womenY Youssef
Department of Surgery, Vanderbilt University School of Medicine, D 5203 MCN, Nashville, Tennessee, 37232, United States
Surg Endosc 21:1393-6. 2007..The aims of our study were to evaluate the effects of laparoscopic gastric bypass on calcium and vitamin D metabolism, and to identify patients at high risk to develop secondary hyperparathyroidism (HPT)...
Long-term evaluation of patient satisfaction and reflux symptoms after laparoscopic fundoplication with Collis gastroplastyY K Youssef
Department of Surgery, Vanderbilt University School of Medicine, D-5203 MCN, Nashville, TN 37232-2577, USA
Surg Endosc 20:1702-5. 2006..Patient satisfaction, postoperative quality of life, and QOLRAD score improvement after this procedure are comparable with those observed in patients treated with Nissen fundoplication alone...
Endoscopic treatment modalities for gastroesophageal reflux diseaseR E Lutfi
Department of Surgery, Vanderbilt University School of Medicine, D 5203 MCN, Nashville, TN 37232-2577, USA
Surg Endosc 18:1299-315. 2004..With the available data from clinical trials, it is not possible to determine the best modality available, and the endoscopic treatment of choice is to be determined with further studies...
Predictors of success after laparoscopic gastric bypass: a multivariate analysis of socioeconomic factorsR Lutfi
Department of Surgery, Chicago Bariatric Institute, Chicago, IL 60640, USA
Surg Endosc 20:864-7. 2006..However, the degree of postoperative weight loss and metabolic improvement varies greatly among individuals. Our study is aimed to identify independent predictors of successful weight loss after LGB...
Laparoscopic fundoplication: 5-year follow-upM S Dassinger
Vanderbilt University, Nashville, Tennessee 37232-2577, USA
Am Surg 70:691-4; discussion 694-5. 2004..Laparoscopic fundoplication is an effective long-term treatment for GERD, resulting in high patient satisfaction, improved quality of life, and elimination of antisecretory medicines in the majority of patients...
Endoscopic evaluation of the gastrojejunostomy in laparoscopic gastric bypass. A series of 340 patients without postoperative leakN Sekhar
Department of Surgery, Vanderbilt University Medical School, D-5219 MCN, Nashville, TN 37232, USA
Surg Endosc 20:199-201. 2006..Age >40 years was identified as an independent risk factor for intraoperative leak in this series...
Three year's experience with the Stretta procedure: did it really make a difference?R E Lutfi
Department of Surgery, Vanderbilt University Medical Center, D 5219 MCN, Nashville, TN 37232, USA
Surg Endosc 19:289-95. 2005..We present our 3-yr experience at Vanderbilt University using endoscopic radiofrequency energy (Stretta procedure) for GERD treatment...
Relief of dysphagia after laparoscopic Heller myotomy improves long-term quality of lifeYassar Youssef
Department of Surgery, Vanderbilt University School of Medicine, D 5203 MCN, Nashville, Tennessee 37232, USA
J Gastrointest Surg 11:309-13. 2007..The aim of the study was to assess the impact of residual dysphagia on QoL after laparoscopic Heller myotomy for achalasia...
Endoluminal GERD treatments: critical appraisal of current literature with evidence-based medicine instrumentsAlfonso Torquati
Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA
Surg Endosc 21:697-706. 2007..There is grade 1b and 2b evidence demonstrating that full-thickness plication is effective in reducing GERD symptoms, and acid exposure in the distal esophagus...
Endoscopic full-thickness plication for the treatment of gastroesophageal reflux disease: A randomized, sham-controlled trialRichard Rothstein
Section of Gastroenterology and Hepatology, Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire 03756, USA
Gastroenterology 131:704-12. 2006..The aim of this study was to determine the effectiveness of endoscopic full-thickness plication for the treatment of gastroesophageal reflux disease (GERD) in comparison with a sham procedure...
Internal hernia: postoperative complication of roux-en-Y gastric bypass surgeryAaron Eckhauser
Vanderbilt University Medical Center, Department of Surgery, 1116 21st Ave. South, D-5203 MCN, Nashville, TN 37232-2577, USA
Am Surg 72:581-4; discussion 584-5. 2006..General awareness of this condition and high clinical suspicion allow for prompt surgical intervention with decreased morbidity and mortality...
Weight, dietary and physical activity behaviors two years after gastric bypassHeidi J Silver
Department of Medicine, Vanderbilt Center for Human Nutrition, Vanderbilt University School of Medicine, Nashville, TN 37212, USA
Obes Surg 16:859-64. 2006....
Results of bariatric surgeryErik N Hansen
Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee 37232 2736 email
Annu Rev Nutr 26:481-511. 2006..Concomitant changes in adipocyte-derived hormones may provide mechanistic explanations to the observed improvements...
The current treatment of achalasiaWilliam O Richards
Department of Surgery, Vanderbilt University Medical School, Nashville, Tennessee, USA
Adv Surg 39:285-314. 2005
Heller myotomy versus Heller myotomy with Dor fundoplication for achalasia: a prospective randomized double-blind clinical trialWilliam O Richards
Department of Surgery, Vanderbilt University, Medical School, Nashville, Tennessee 37232, USA
Ann Surg 240:405-12; discussion 412-5. 2004..We sought to determine the impact of the addition of Dor fundoplication on the incidence of postoperative gastroesophageal reflux (GER) after Heller myotomy...
Paradigm shift in the management of gastroesophageal reflux diseaseWilliam O Richards
Department of Veteran Affairs Medical Center, Nashville, TN 37232, USA
Ann Surg 237:638-47; discussion 648-9. 2003..To compare the short-term results of the radiofrequency treatment of the gastroesophageal junction known as the Stretta procedure versus laparoscopic fundoplication (LF) in patients with gastroesophageal reflux disease (GERD)...
Experience with the optical access trocar for safe and rapid entry in the performance of laparoscopic gastric bypassBarry R Berch
General Surgery, Vanderbilt University Medical Center, Nashville, USA
Surg Endosc 20:1238-41. 2006..Our aim was to determine whether the optical access trocar can be used to establish a safe and rapid entry during laparoscopic gastric bypass...
Myotomy: follow-up study of 50 patientsBarry R Berch
Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, USA
J Gastrointest Surg 9:1326-31. 2005..Overall satisfaction was achieved in 94% of contacted patients. These results confirm that laparoscopic myotomy is an effective procedure with excellent long-term symptom resolution and overall satisfaction in patients with achalasia...
The endoscopic radiofrequency approach to management of GERDRami E Lutfi
Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee 37232, USA
Curr Opin Otolaryngol Head Neck Surg 12:191-6. 2004..SUMMARY: The Stretta procedure is an endoscopic, noninvasive modality for the treatment of gastroesophageal reflux disease. It should be considered in the treatment of reflux-related upper airway diseases...
Research Grants
- Impact of gastric bypass surgery on risk of CVD in type 2 diabetes mellitusAlfonso Torquati; Fiscal Year: 2007..Furthermore, they will serve as the baseline for future large scale longitudinal studies based on aggregate occurrence of severe cardiovascular events. ..
