We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Original Investigation |

Video Ratings of Surgical Skill and Late Outcomes of Bariatric Surgery Online Only

Christopher P. Scally, MD1; Oliver A. Varban, MD1; Arthur M. Carlin, MD2; John D. Birkmeyer, MD3; Justin B. Dimick, MD, MPH1 ; for the Michigan Bariatric Surgery Collaborative
[+] Author Affiliations
1Center for Healthcare Outcomes and Policy, Department of Surgery, University of Michigan, Ann Arbor
2Department of Surgery, Henry Ford Hospital, Detroit, Michigan
3Dartmouth Hitchcock Medical Center, Hanover, New Hampshire
JAMA Surg. 2016;151(6):e160428. doi:10.1001/jamasurg.2016.0428.
Text Size: A A A
Published online

Importance  Measures of surgeons’ skills have been associated with variations in short-term outcomes after laparoscopic gastric bypass. However, the effect of surgical skill on long-term outcomes after bariatric surgery is unknown.

Objective  To study the association between surgical skill and long-term outcomes of bariatric surgery.

Design, Setting, and Participants  In this retrospective observational study, 20 surgeons performing bariatric surgery submitted videos; surgeons were ranked on their skill level through blinded peer video review and sorted into quartiles of skill. Outcomes of bariatric surgery were then examined at the patient level across skill levels. The patients (N = 3631) undergoing surgery with these surgeons had 1-year postoperative follow-up data available between 2006 and 2012. The study was conducted using the Michigan Bariatric Surgery Collaborative, a prospective clinical registry of 40 hospitals performing bariatric surgery in the state of Michigan.

Exposure  Surgeon skill level.

Main Outcomes and Measures  Excess body weight loss at 1 year; resolution of medical comorbidities (hypertension, sleep apnea, diabetes, and hyperlipidemia), functional status, and patient satisfaction.

Results  Surgeons in the top and bottom quartiles had each been practicing for a mean of 11 years. Peer ratings of surgical skill varied from 2.6 to 4.8 on a 5-point scale. There was no difference between the best (top 25%) and worst (bottom 25%) performance quartiles when comparing excess body weight loss (67.2% vs 68.5%; P = .86) at 1 year. There were no differences in resolution of sleep apnea (62.6% vs 62.0%; P = .77), hypertension (47.1% vs 45.4%; P = .73), or hyperlipidemia (52.3% vs 63.4%; P = .45). Surgeons with the lowest skill rating had patients with higher rates of diabetes resolution (78.8%) when compared with the high-skill group (72.8%) (P = .01).

Conclusions and Relevance  In contrast to its effect on early complications, surgical skill did not affect postoperative weight loss or resolution of medical comorbidities at 1 year after laparoscopic gastric bypass. These findings suggest that long-term outcomes after bariatric surgery may be less dependent on a surgeon’s operative skill and instead be driven by other factors. Operative technique was not assessed in this analysis and should be considered in future studies.

Figures in this Article


Place holder to copy figure label and caption
Figure 1.
Risk-Adjusted Excess Body Weight Loss at 1 Year, According to Quartile of Surgical Skill
Graphic Jump Location
Place holder to copy figure label and caption
Figure 2.
Risk-Adjusted Rate of Resolution of Medical Comorbidities, According to Quartile of Surgical Skill
Graphic Jump Location





You need to register in order to view this quiz.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.

See Also...
Related Multimedia

Author Interview

audio player

Articles Related By Topic
Related Collections

The Rational Clinical Examination: Evidence-Based Clinical Diagnosis
Age and Comorbidities

The Rational Clinical Examination: Evidence-Based Clinical Diagnosis
Age and Comorbidities