October 14, 2020

Analysis Shows Dramatic Declines in Open Vascular Surgery Training in U.S.

Study of ACGME case log data spurs proposals to reverse the trend

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The advent of endovascular aneurysm repair (EVAR) in the 1990s increased demand for learning this technique and shifted focus away from open surgical procedures. As a case in point, a recent review of Medicare data (J Vasc Surg. 2018;67:1690-1697) revealed that open abdominal aortic aneurysm (AAA) repairs fell by 76% from 2003 to 2013 while EVAR volumes nearly doubled.

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The impact of this trend on training has been significant. At most academic medical centers, general surgery residents, vascular surgery fellows and vascular surgery integrated residents perform only a handful of open cases prior to completing their training program.

“If you have experience doing only five open aorta repairs, you’re not going to perform this surgery in your practice,” says Cleveland Clinic vascular surgeon Francis Caputo, MD.

A national concern

Surgeons nationwide recognize this lack of experience as a problem. Cleveland Clinic vascular surgeons and fellows recently teamed up with colleagues in two other states to examine the type and number of cases performed by surgical trainees nationwide from 2000 through 2018 as tracked by the Accreditation Council for Graduate Medical Education.

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Their findings, which focused on vascular surgery fellows and integrated residents as well as general surgery residents, were presented at the 2020 annual meeting of the Midwestern Vascular Surgical Society (MVSS), held virtually in September.

“We are seeing a general decline in open repair for all trainees in all areas of vascular surgery, including peripheral and cerebrovascular surgery, but what is most concerning is the drastic decline in open aortic aneurysm repair,” says Dr. Caputo, the study’s senior investigator. “The average number of femoral-popliteal bypass cases performed by vascular surgery trainees is in the single digits or low teens. The average number of open AAA repairs is just five to 10.”

How necessary does open repair remain?

The rise of EVAR has not obviated the need for open repair. In fact, 33% of AAA repairs performed at Cleveland Clinic between 2010 and 2014 were open surgeries, as reported by Cleveland Clinic staff last year (J Vasc Surg. 2019;70:921-926). On average, Cleveland Clinic vascular surgery residents perform 60 to 80 aortic surgeries per year during training, including 20 to 30 primary open AAA repairs.

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“Open aortic surgery is still necessary in a large number of patients,” notes Cleveland Clinic Vascular Surgery Chair Sean Lyden, MD, a co-author of the study presented at the MVSS meeting. “With training in open procedures declining in most programs, patients are not going to be able to access this surgery unless they go to a regional referral center.”

Proposed solutions

Following their study’s confirmation that lack of training in open surgery is a national problem, Dr. Caputo and his colleagues proposed three potential solutions:

  • First, vascular surgery fellowship and integrated residency programs must recognize the need for open surgical cases, particularly aortic repairs. These programs must make a concerted effort to provide trainees with the depth of experience they need to feel comfortable performing open AAA repair in their post-training practice, whether through outside rotations or additional training avenues.
  • Second, where patient volume cannot provide adequate experience, a formalized curriculum using cadavers or simulators should be substituted. “I believe cadavers are the best alternative to live patients, but simulators can be an excellent way to mitigate deficiencies and maintain expertise,” notes Dr. Caputo. “Our colleagues at West Virginia University in Morgantown, who partnered with us on this study of training trends, do a good deal of simulation surgery training, and we also use simulators in our own vascular surgery training program.”
  • Third, regional referrals should be cultivated. “Cleveland Clinic and other major referral centers tend to have a large volume of open aortic surgery cases and excellent outcomes,” says Dr. Caputo. “This is the result of not only the extensive surgical experience but also the perioperative system built around these patients to facilitate excellent outcomes. Healthcare systems that do not have the infrastructure to care for these patients should establish relationships with nearby tertiary care centers in order to provide the best possible outcomes for their patients.”

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