SivamainthanVithiananthanMDFACS, FICS, FASAMBS

Bariatric Surgery, Trauma Surgery & Surgical Critical Care, Minimally Invasive Surgery

Chief of Minimally Invasive and Bariatric Surgery at The Miriam Hospital, RI Director, Center for Bariatric Surgery at Rhode Island and Miriam Hospitals

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Office
195 Collyer St
Suite 302
Providence, RI 02904
Phone+1 401-793-5140

Fax+1 401-793-5171

Summary

Siva Vithiananthan, MD FACS FICS is a general surgeon with expertise in advanced laparoscopic surgery. He specializes in minimally invasive procedures including hernia repairs, splenectomies, adrenalectomies, gallbladder and biliary surgery, colon, stomach, anti reflux, motility-disorder related surgery and intestinal surgery, as well as gastric bypass, sleeve gastrectomy and lap-band procedures.

Prior to joining the staff at The Miriam Hospital, Vithiananthan was director for the Surgical Weight Loss Program at Winthrop University Hospital in Long Island, NY. In addition, he was Winthrop’s site director of the surgical residency and medical student program affiliated with the State University of New York (SUNY) at Stony Brook School of Medicine, where he also served as an assistant professor of clinical surgery.

Vithiananthan performed a fellowship in advanced laparoscopic surgery at New York Presbyterian Hospital, as well as a fellowship in surgical critical care at Hartford Hospital. He completed his residency in general surgery at Baystate Medical Center-Tufts University School of Medicine and earned his medical degree from Columbia University College of Physicians and Surgeons.
Vithiananthan has received several accolades for his commitment to the education of medical students and residents. He has published several professional papers and has been selected to present at a number of national meetings on bariatric and advanced laparoscopic surgery. His current research interests include the metabolic effects of surgical weight loss surgery and integrating advanced laparoscopic skills training in residency programs.

Education & Training

New York-Presbyterian HospitalPost-Doctoral Fellowship, 1999 - 2000
University of ConnecticutFellowship, Surgical Critical Care, 1998 - 1999
UMass Chan - BaystateResidency, Surgery, 1993 - 1998
Columbia University Vagelos College of Physicians and SurgeonsClass of 1993
State University of New York, College at FredoniaNo Degree, 1987 - 1988
University of JaffnaNo Degree, 1986 - 1987

Certifications & Licensure

OR State Medical License 2000 - Present
MA State Medical License 1994 - 2025
NY State Medical License 1999 - 2025
RI State Medical License 2007 - 2022
American Board of Surgery Surgery
American Board of Surgery Surgical Critical Care

Awards, Honors, & Recognition

Vice-President International College of Surgeons, US section
CMS Meaningful Use Stage 1 Certification All in One EMR, Medstreaming, 2013
Riesman Excellence in Teaching Award The Miriam Hospital, 2013
Dean’s Teaching Excellence Award Alpert Medical School of Brown University, 2010
Outstanding Attending of the Year (House staff nomination/presentation) Winthrop University Hospital/Stony Brook Integrated Residency, 2007
Outstanding Teaching Award Presented by Class of 2007 SUNY at Stony Brook School of Medicine, 2007
Aesculapius Award for Teaching (Dean of the Medical School’s highest award for teaching) SUNY at Stony Brook School of Medicine, 2006
Outstanding Teaching Award Presented by Class of 2005 SUNY at Stony Brook School of Medicine, 2005
Certificate of Appreciation for Contributions to Teaching SUNY at Stony Brook School of Medicine, 2003
Excellence in Teaching Award Presented by Class of 2003 SUNY at Stony Brook School of Medicine, 2003
America’s Top Surgeons Consumers’ Research Council of America, 2002
Fellow American College of Surgeons, 2000
Excellence in Teaching by a Resident Physician (Medical Student’s Nomination) Tufts University School of Medicine, 1996
Commendation, Committee on Trauma, Resident Research Day Competition American College of Surgeons Massachusetts, 1996
Finalist, Surgical Research Day Tufts University School of Medicine, 1995
International Peace Scholarship (2 Years Full Tuition) St. George's University School of Medicine, Grenada, 1990
Most Outstanding Student in Anatomy St. George's University School of Medicine, Grenada, 1990
Vice Chancellor's Commendation List (All Semesters) St. George's University School of Medicine, Grenada, 1990
Outstanding Achievement Award American Chemical Society, 1987
Dean’s List (All Semesters) State University of New York, College at Fredonia, 1987
Fredonia Engineering Society Award for Excellence State University of New York, College at Fredonia, 1987
International Youth in Achievement Award University of Jaffna, 1986
Committee Member Society of American Gastrointestinal and Endoscopic Surgeons ( SAGES)
Fellow (FACS) American College of Surgeons
member, American Society of Metabolic and Bariatric Surgery
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Publications & Presentations

PubMed

Associations of weather and air pollution with objective physical activity and sedentary time before and after bariatric surgery: a secondary analysis of a prospective...
Aurélie Baillot, Paquito Bernard, Jmii Nejm Eddine, J Graham Thomas, Leah M Schumacher
Environmental Research Communications. 2024-08-01
Associations of daily weight management-focused social support with weight loss, activity behaviors, and eating regulation in the context of metabolic and bariatric su...
Dale S Bond, Kathryn E Smith, Leah M Schumacher, Sivamainthan Vithiananthan, Daniel B Jones
Obesity Science & Practice. 2024-02-01
7 citations
Amputation Rates and Associated Social Determinants of Health in the Most Populous US Counties.
Daniel Kassavin, Lucas Mota, Claire A Ostertag-Hill, Monica Kassavin, David U Himmelstein
JAMA Surgery. 2024-01-01

Journal Articles

Ecological Momentary Assessment (EMA) of Recommended Postoperative Eating and Activity Behaviors
Thomas G; Bond, DS; Ryder BA; Leahey TM; Vithiananthan SV; Roye GD, Ring R, International Journal of Behavioral Medicine, 3/1/2013
Self-reported and objectively measured sedentary behaviors in bariatric surgery candidates
Bond DS, Thomas JG, Unick JL, Raynor HA, Vithiananthan S, Wing RR, Surgery for Obesity and Related Diseases, 1/1/2013
A Case-Controlled Matched-Pair Cohort Study of Single Incision and Conventional Laparoscopic Gastric Band Patients in a Single US Center with 1 year Follow-up
Vithiananthan S, Gero D, Zhang JY, Machan JT, Surgical Endoscopy, 7/26/2012
Effects of bariatric surgery on food cravings: do food cravings and the consumption of craved foods “normalize” after bariatric surgery?
Leahey TM, Bond DS, Raynor HA, Roye GD, Vithiananthan S, Ryder BA, Sax HC, Wing RR, Surgery for Obesity and Related Diseases, 2/1/2012
Comparison of two objective monitors for assessing physical activity and sedentary behavior in bariatric surgery patients
Unick JL, Bond DS, Jakicic JM, Vithiananthan S, Ryder BA, Roye GD, Pohl D, Sax HC, Wing RR, Obesity Surgery, 1/1/2012
Physical Activity and Quality of Life in Severely Obese Individuals Seeking Bariatric Surgery
Bond DS, Unick JS, Jakicic JM, Vithiananthan S,Trautvetter S, O'Leary K, Wing R, Health and Quality of Life Outcomes, 1/1/2012
Significant resolution of female sexual dysfunction after bariatric surgery
Bond DS, Wing RR, Vithiananthan S, Sax HC, Roye GD, Ryder BA, Pohl D, Giovanni, Surgery for Obesity and Related Diseases, 1/1/2011
Objective Assessment of Time Spent Being Sedentary in Bariatric Surgery Candidates
Bond DS, Unick JL, Jakicic JM, Vithiananthan S, Pohl D, Roye GD, Ryder BA, Sax HC, Giovanni J, Wing RR, Obesity Surgery, 1/1/2011
Pre- to Postoperative Physical Activity Changes in Bariatric Surgery Patients: Self Report vs Objective Measures
Bond DS, Jakicic JM, Unick JL, Vithiananthan S, Pohl D, Roye GD, Ryder BA, Sax HC, Wing RR, Obesity, 1/1/2010
Objective quantification of physical activity in bariatric surgery candidates and normal-weight controls
Bond DS, Jakicic JM, Vithiananthan S, Thomas JG, Leahey TM, Sax HC, Pohl D, Roye GD, Ryder BA, Wing RR, Surgery for Obesity and Related Diseases, 1/1/2010
Prevalence and degree of sexual dysfunction in a sample of women seeking bariatric surgery
Bond DS, Vithiananthan S, Leahey TM, Thomas JG, Sax HC, Pohl D, Ryder BA, Roye GD, Giovanni J, Wing RR, Surgery for Obesity and Related Diseases, 11/1/2009
Differences in salivary habituation to repeated presentations of a taste stimulus in bariatric surgery candidates and normal-weight controls
Bond DS, Raynor HA, Vithiananthan S, Sax HC, Pohl D, Roye GD, Ryder BA, Wing RR, Obesity Surgery, 7/1/2009
Bariatric surgery for severe obesity: the role of patient behavior
Bond D, Leahey TM, Vithiananthan S, Ryder B, Medicine & Health R I, 2/1/2009
Volunteer Surgeon Experiences in the Wake of the 2004 Tsunami
Terima Kasih, Vithiananthan S. (contributing author), American College of Surgeons Bulletin, 1/1/2005
Hybrid laparoscopic flexure takedown and open procedure for rectal resection is associated with significantly shorter length of stay than equivalent open resection
Vithiananthan S, Cooper Z, Betten K, Stapleton GS, Carter J, Huang EH, Whelan RL, Diseases of the Colon and Rectum, 7/1/2001
Esophageal Doppler Monitor Correcting Pulmonary Artery Catheter Hemodynamic Data in The Presence of Tricuspid Regurgitation
Vithiananthan S, Evasovich M, Keating K, Chest, 1/1/1999
Extubation of the Difficult Airway over an Airway Exchange Catheter: Relationship between Catheter Size and Patient Tolerance
Mort T, Vithiananthan S, Critical Care Medicine, 1/1/1999
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Books/Book Chapters

The 5-Minute Clinical Consult
Chapter: Abdominal Pain, Lower.
Patel N, Vithiananthan SEditors: Domino F, et al.Lippincott, Williams & Wilkins, PhiladelphiaEdition 18th,2010
The 5-Minute Clinical Consult
Chapter: Abdominal Pain, Upper.
Patel N, Vithiananthan SEditors: Domino F, et al.Lippincott, Williams & Wilkins, PhiladelphiaEdition 18th,2010
Practical Gastroenterology
Chapter: Update on Laparoscopic Approach to Patients with Colon Cancer.
Vithiananthan S, Oh A, Whelan RLEditors: Melvin Schapiro.Shugar Publishing Inc., Westhampton Beach, NY2000
Problems in General Surgery
Chapter: An Analysis of the Endpoints of Resuscitation.
Vithiananthan SEditors: Civetta JM.Lippincott, Williams & Wilkins, Philadelphia2000
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Abstracts/Posters

Bari-Active: a randomized controlled trial of a preoperative behavioral intervention to increase physical activity in bariatric surgery patients.
Bond DS, Trautvetter J, Thomas JG, Unick JL, Vithiananthan S, Jakicic JM, Pohl D, Giovanni J, Ryder BA, Roye GD, Wing RR, 30th Annual Meeting Meeting of the American Society for Metabolic and Bariatric Surgery; American Society of Metabolic and Bariatric Surgery (ASMBS)/Obesity Week, Atlanta, GA, 11/1/2013
Project HELP: A 5 Week Behavioral Intervention to Reduce Excessive Vomiting and Gastrointestinal Complications in Post-operative Lap-Band Patients.
Himes S, Leahy T, Vithiananthan S, Wing R, 30th Annual Meeting of the American Society for Metabolic and Bariatric Surgery, 11/1/2013
Less is More: Bariatric Surgery Related Weight Loss in Publicly Insured Patients and Duration of Mandated Preoperative Diet Program.
Maloominan KS, Roye GD, Ryder BA, Stiles SE, Armstrong KC, Vigneswaran H, Vithiananthan S, 30th Annual Meeting Meeting of the American Society for Metabolic and Bariatric Surgery, 11/1/2013
A brief physical activity intervention improves preoperative health-related quality of life in bariatric surgery patients: Results from the Bari-Active randomized cont...
Bond DS, Thomas JG, King WC, Trautvetter J, Vithiananthan S, Pohl D, Giovanni J, Ryder BA, Roye GD, Wing RR, 30th Annual Meeting Meeting of the American Society for Metabolic and Bariatric Surgery; American Society of Metabolic and Bariatric Surgery (ASMBS)/Obesity Week, Atlanta, GA, 11/1/2013
Time to Eliminate Long Duration Preoperative Medically Supervised Weight Loss: A Money Loser Without Clinical Benefits. Poster
Maloomian KS, Roye GD, Ryder BA, Metro SE, Armstrong KC, Rajadurai S, Vithiananthan S, 30th Annual Meeting Meeting of the American Society for Metabolic and Bariatric Surgery; American Society of Metabolic and Bariatric Surgery (ASMBS)/Obesity Week, Atlanta, GA, 11/1/2013
Comparison of exercise-related psychological factors in severely obese individuals seeking bariatric surgery vs. lifestyle treatment.
Unick JL, Bond DS, O’Leary KC, Trautvetter J, Pohl D, Ryder B, Vithiananthan S, Wing RR, 30th Annual Scientific Meeting of the Obesity Society, San Antonio, TX, 9/1/2012
Physical Activity and Quality of Life in Severely Obese Individuals Seeking Bariatric Surgery. Health and Quality of Life Outcomes
Bond DS, Unick JS, Jakicic JM, Vithiananthan S, Trautvetter S, O'Leary K, Wing R, 30th Annual Scientific Meeting of the Obesity Society, San Antonio, TX, 9/1/2012
Comparison of bariatric surgery candidates’ self reported and objectively-measured time spent in sedentary behaviors.
Bond DS, Thomas G, Unick JS, Raynor HA, Vithiananthan S, Trautvetter, Wing RW, 30th Annual Scientific Meeting of the Obesity Society, San Antonio, TX, 9/1/2012
A Matched Case-Controlled Study of Single Incision and Conventional Laparoscopic Adjustable Band Patients in a Single U.S. Center with 1 Year Follow-Up
Vithiananthan S, Zhang J, Gero D, SAGES, San Antonio, TX, 3/29/2012
Effective use of inferior vena cava filters in high-risk morbidly obese patients undergoing bariatric surgery.
Chong T, Sangisetty S, Vithiananthan S, Society of American Gastrointestinal and Endoscopic Surgeons Annual Meeting, San Diego, CA, 3/7/2012
Significant reduction in migraine headache frequency, pain severity, and disability in severely obese patients following bariatric surgery.
Bond DS, Wing RR, Nash JM, Vithiananthan S, Ryder BA, Roye GD, Pohl D, Sax HC, The Obesity Society Conference, Las Vegas, NV, 10/1/2010
Significant Resolution of Female Sexual Dysfunction (FSD) Following Bariatric Surgery
Bond D, Vithiananthan S, Thomas JG, Pohl D, Ryder B, Roye GD, Sax SC, Wing R, 27th Annual Meeting, The American Society for Metabolic and Bariatric Surgery, Las Vegas, NV, 6/26/2010
Trends in Junior Medical Students Knowledge and Attitudes Toward Obesity and Bariatric Surgery Followed Over 2 Years
Vithiananthan S, Zhang J, Grant S, Patel N, 27th Annual Meeting of the American Society for Metabolic and Bariatric Surgery, Las Vegas, NV, 6/26/2010
Trends in junior medical students knowledge and attitudes towards obesity and bariatric surgery followed over 2 years.
Zhang JY, Grant SB, Patel NK, Vithiananthan S, American Society for Metabolic and Bariatric Surgery Conference, Las Vegas, NV, 6/1/2010
Significant resolution of female sexual dysfunction following bariatric surgery. Paper Session
Bond DS, Vithiananthan S, Leahey TM, Thomas JG, Pohl D, Ryder BA, Roye GD, Giovanni J, Sax HC, Wing RR, The American Society for Metabolic and Bariatric Surgery, Las Vegas, NV, 6/1/2010
Bariatric surgery is not associated with long-term changes in food preferences. Poster Session
Leahey TM, Bond DS, Thomas JG, Raynor HA, Vithiananthan S, Roye GD, Pohl D, Ryder B, Sax, HC, Wing RR, The American Society for Metabolic and Bariatric Surgery, Las Vegas, NV, 6/1/2010
Evaluation of post-operative adherence to recommended eating and activity behaviors in patients’ natural environment via Ecological Momentary Assessment (EMA). Paper ...
Thomas JG, Bond DS, Leahey TM, Ryder B, Roye D, Vithiananthan S, Sax, HC, Pohl D, Wing RR, The American Society for Metabolic and Bariatric Surgery, Las Vegas, NV, 6/1/2010
Single site laparoscopy using standard laparoscopic re-usable instruments: Initial experience.
Vithiananthan, S, The International College of Surgeons US Section - 72nd Annual Surgical Update, Denver, CO, 5/1/2010
Do Food Cravings and The Consumption Of Craved Foods “Normalize” After Bariatric Surgery? Paper Session
Leahey TM, Bond DS, Thomas JG, Raynor H, Roye D, Pohl D, Vithiananthan S, Ryder B, Sax HC, Wing RR, Surg Obes Relat Dis; American Society of Metabolic and Bariatric Surgery Conference, Grapevine, TX, 6/1/2009
Prevalence and Degree of Sexual Dysfunction in Women Seeking Bariatric Surgery. Paper Session
Bond DS, Vithiananthan S, Sax HC, Pohl D, Ryder B, Leahey T, Thomas JG, Wing RR, Surg Obes Relat Dis; American Society of Metabolic and Bariatric Surgery Conference, Grapevine, TX, 6/1/2009
Internal Disinhibition Predicts Weight Loss Immediately Following Bariatric Surgery. Poster Session
Thomas JG, Bond DS, Pohl D, Roye D, Vithiananthan S, Ryder B, Leahey TM, Raynor H, Sax HC, Wing RR, Surg Obes Relat Dis; American Society of Metabolic and Bariatric Surgery Conference, Grapevine, TX, 6/1/2009
Objective Quantification of Amount and Intensity of Physical Activity in Bariatric Surgery Candidates and Age- And Sex-Matched Normal Weight Controls. Paper Session
Bond DS, Jakicic JM, Leahey TM, Thomas JG, Vithiananthan S, Pohl D, Roye D, Ryder B, Sax HC, Wing RR, Surg Obes Relat Dis; American Society of Metabolic and Bariatric Surgery Conference, Grapevine, TX, 6/1/2009
Evaluation Of Objectively-Measured And Self-Reported Pre- To Post-Operative Changes in Physical Activity Among Bariatric Surgery Patients.
Bond DS, Vithiananthan S, Sax HC, Pohl D, Ryder B, Leahey T, Thomas JG, Wing RR, Obesity; The Obesity Society Annual Scientific Meeting, Washington, DC (Oct, 2008), 1/1/2009
Characteristics of Patients Undergoing Routine Polysomnography Prior To Bariatric Surgery.
Anderson, J, Vithiananthan S, Groth M, Pollack S, Weinstein MD, Sleep Volume, 1/1/2003
A Case Controlled Study of Laparoscopic and Open Gastric Bypass: Lessons Learned From The Initial Experience. Podium Presentation
Vithiananthan S, Tame J, Olivero-Rivera L, Bessler M, Society of American Endoscopic and Gastrointestinal Surgeons (SAGES) Meeting, St. Louis, MO, 4/20/2001
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Lectures

Surgeon directed endoscopic interventions during and after laparoscopic bariatric and revisional foregut surgery.
10/1/2013
Co-Moderator Proficiency in Laparoscopy Section
10/1/2013
Minimally invasive surgery fellowship and MIS privileges.
10/1/2013
Roundtable Laparoscopic Suturing, Preliminary Program
10/1/2013
Safe practice of advanced laparoscopic surgery: a dozen tips.
10/1/2013
Cost effective set up for single site surgery using traditional laparoscopic instruments.
10/1/2013
Laparoscopic suture training in a US Residency Program. Laparoscopic Sewing – Interdisciplinary Considerations Session
10/1/2013
Opening Remarks, (Physician Director)
Warwick, RI - 4/30/2013
Difficult Hernia/Foregut Cases.
Cincinnati, OH - 3/21/2013
GI interventions and Considerations in Bariatric surgery.
Providence, RI - 2/14/2013
Teaching Staff, Learning Center, Suturing Station
1/1/2013
“Posters of Distinction”, Abstract Session Moderator
San Diego, CA - 6/18/2012
MIS Bariatric Surgery: Present versus Future Options (Session Moderator)
International College of Surgeons, Atlanta, GA - 6/8/2012
Surgical Treatment of Morbid Obesity
Warwick, RI - 5/1/2012
“Posters of Distinction” Abstract Session Moderator
San Diego, CA - 1/1/2012
Minimally Invasive Surgery Session (Moderator)
Atlanta, GA - 1/1/2012
Surgery for Clostridium Difficile Colitis: A shift in paradigm.
Portland, OR - 6/10/2011
The Skinny on Bariatric Surgery
Providence, RI - 3/25/2011
The Skinny on Obesity Surgery: What to Expect in Post Op Patients in the Office Setting
Newport, RI - 3/4/2011
“Metabolic Surgery” Plenary Session Moderator
Orlando, FL - 1/1/2011
“Health Needs of Resettled Persons & Telemedicine for Developing Nations” Moderator
Woburn, MA - 1/1/2011
It’s Not Just Melting Fat.
Warwick, RI - 5/11/2010
Single Site Surgery: Initial Experience in Emergency and Elective Surgical Interventions Using Traditional Laparoscopic Instruments
International College of Surgeons, Denver, CO - 5/7/2010
“Sleeve Gastrectomy” Plenary Session Moderator
Las Vegas, NV - 1/1/2010
Reflections of a Surgeon's Experience During the Tsunami Medical Relief in Sri Lanka
International College of Surgeons, Montreal, Canada - 5/1/2009
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Other

"RI doctor on fewer younger obese kids" (TMH)
Vithiananthan S, WPRI-TV Chn. 12
http://wpri.com/2014/03/05/miriam-hospital-fewer-younger-kids-obese/
3/5/2014
Special Report on Weight Loss Surgery, Guest Surgeon
Vithiananthan S, WABC News, Up Close with Diana Williams
5/21/2005
Interview on Gastric Bypass Surgery for Weight Loss.
Vithiananthan S, News Channel 12, Cable Vision, Long Island, NY
2/20/2003
So You Want to Be a Doctor? Syllabus Week 7: MD Specialist Interview: Surgeon (Course Description)
Vithiananthan S, Brown University, Pre-College Program, On-line Course
http://www.brown.edu/ce/pre-college/online/md/
So You Want to Be a Doctor? Syllabus Week 7: MD Specialist Interview: Surgeon (Trailer)
Vithiananthan S, Brown University, Pre-College Program, On-line Course
http://www.brown.edu/ce/pre-college/online/md/video.php
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Professional Memberships

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