A new study published in JAMA which compared the rates of bariatric (weight-loss) surgery for minority Medicare and non-Medicare patients before and after implementation of a Medicare coverage policy reveals that the safety measures that are intended to improve surgery outcomes may instead impede obese minorities' access to care.
Led by faculty from the Johns Hopkins Bloomberg School of Public Health, the researchers found a decline in the number of minority patients with Medicare receiving bariatric surgery after the policy was implemented.
"The Medicare centers of excellence policy was associated with a 4.7 percentage point (17 percent) decline in the proportion of Medicare patients receiving bariatric surgery who were non-white," said Lauren Hersch Nicholas, PhD, MPP, lead author of the letter and an assistant professor with the Bloomberg School's Department of Health Policy and Management. "It appears that a policy intended to improve patient safety had the unintended consequence of reduced use of bariatric surgery by minority Medicare patients."
Earlier studies documenting better surgical outcomes at hospitals with higher procedure volume have prompted proposals to concentrate elective surgery in high-volume settings; these policies have been little-used in practice. To date, bariatric surgery is the only procedure for which the Centers for Medicare and Medicaid Services (CMS) have experimented with restrictions to high-volume hospitals. CMS recently proposed eliminating the centers of excellence requirement after studies suggested little if any safety benefit to bariatric centers of excellence and is expected to issue a decision later this month.
"Policies restricting patients to centers of excellence could lead to serious issues including, reducing access for vulnerable populations," suggest the authors.
"Morbidity and mortality associated with bariatric surgery have declined in recent years and safety gains from limiting hospital choice are likely lower than they were when the national coverage decision was implemented in 2006," adds Nicholas. "Our findings are important for bariatric surgery and also serve as a cautionary tale about the potential for unintended consequences if selective referral policies are extended to other procedures."