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The July Effect

Article / Review by on November 6, 2013 – 11:26 pmNo Comments

The July Effect
Real danger exists for high-risk patients when trainees take on new roles

With almost no experience, newly graduated medical students enter teaching hospitals around the country every July, beginning their careers as interns. At the same time, the last year’s interns and junior residents take a step up and assume new responsibilities.

The July Effect Real danger exists for high-risk patients when trainees take on new roles/ The July Effect Real danger exists for high-risk patients when trainees take on new roles

In addition to developing their nascent clinical skills, each entering class of interns must grasp the many rules and standards for operating in this “new” hospital structure.

More experienced physicians share a joke about this changing of the guard: Don’t get sick in July.

But the data to back up this quip has proven hard to find. Over the years, numerous studies have shown no effect or very slight effects when comparing patient outcomes in July versus the preceding May, when trainees are more experienced and concluding their training cycles. Some researchers have suggested that the safeguards academic medical centers put in place, such as increased supervision by more experienced doctors during this first phase in the training cycle, protect patients from the effects of inexperience and organizational disruption.

A new study published Oct. 23 in Circulation by researchers at Harvard Medical School, Stanford University Hospitals, University of Southern California and the RAND Corporation has found that while the so-called “July effect” is negligible in most cases, it is a serious concern for high-risk patients.

“The good news for patients is that in most cases, it’s very difficult for a physician to make a mistake that results in a patient’s death,” said Anupam Jena, HMS assistant professor of health care policy and of medicine at Massachusetts General Hospital and lead author of the study. “But for severely ill patients, health can be very tenuous. A small error or a very slight delay in care is potentially devastating.”

Jena and colleagues analyzed cases from more than 1,400 hospitals using data from the U.S. Nationwide Inpatient Sample. They compared patients who came to teaching and non-teaching hospitals with acute myocardial infarctions, commonly known as heart attacks. The researchers separated cases into low-risk and high-risk categories and compared outcomes.

Overall, they found that patients at teaching hospitals had a lower risk of dying than at non-teaching hospitals, but in July, the risk at teaching hospitals rose to the same level that patients at non-teaching hospitals faced. For high-risk patients who came to the teaching hospitals with heart attacks, the risk of death in hospital went from 20 percent to 25 percent. They also found that among teaching hospitals, the difference between outcomes in May and July is greatest in institutions with the highest percentages of trainees.

The researchers ruled out two potential factors that they suspected may have accounted for some of that difference—the prevalence of percutaneous coronary intervention (i.e. cardiac stents) and of complications from the use of blood thinners.

Without evidence for specific procedures or protocols that could prevent increased deaths, the researchers said that their findings suggest that, especially during the early months in the training cycle, oversight should be intensively focused on high-risk cases rather than across cases overall. In July, doctors with more experience should play a greater role in the care of high-risk patients than has typically been the case.

“Teaching hospitals should revisit what steps are needed to safely and effectively care for high-risk patients in July,” Jena said.

By JAKE MILLER

FUNDING

Support was provided by the Office of the Director, National Institutes of Health (1DP5OD017897-01), the National Institute on Aging (1R03AG031990-A1), and the Leonard Schaeffer Center for Health Policy and Economics at the University of Southern California.

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About Harvard Medical School (HMS)

Driving Change. Building Momentum. Making History.

“Since 1872, Harvard Medical School has been the incubator of bold ideas—a place where extraordinary people advance education, science and health care with unrelenting passion.

Whether training tomorrow’s doctors and scientists, decoding the fundamental nature of life, advancing patient care or improving health delivery systems around the world, we are never at rest. Allied with some of the world’s best hospitals, research institutes and a University synonymous with excellence, the School’s mission remains as ambitious as it is honorable: to alleviate human suffering caused by disease.”

More at Harvard Medical School & Harvard Medical School. Generations of Leaders.

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About Harvard School of Public Health (HSPH)

Harvard School of Public Health is dedicated to advancing the public’s health through learning, discovery and communication. More than 400 faculty members are engaged in teaching and training the 1,000-plus student body in a broad spectrum of disciplines crucial to the health and well being of individuals and populations around the world. Programs and projects range from the molecular biology of AIDS vaccines to the epidemiology of cancer; from risk analysis to violence prevention; from maternal and children’s health to quality of care measurement; from health care management to international health and human rights.

More at Harvard School of Public Health (HSPH) & Harvard School of Public Health (HSPH). History.

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About Harvard University.

Established in 1636, Harvard is the oldest institution of higher education in the United States. The University, which is based in Cambridge and Boston, Massachusetts, has an enrollment of over 20,000 degree candidates, including undergraduate, graduate, and professional students. Harvard has more than 360,000 alumni around the world.

Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders in many disciplines who make a difference globally. Harvard faculty are engaged with teaching and research to push the boundaries of human knowledge. For students who are excited to investigate the biggest issues of the 21st century, Harvard offers an unparalleled student experience and a generous financial aid program, with over $160 million awarded to more than 60% of our undergraduate students. The University has twelve degree-granting Schools in addition to the Radcliffe Institute for Advanced Study, offering a truly global education.

‘Universities nurture the hopes of the world: in solving challenges that cross borders; in unlocking and harnessing new knowledge; in building cultural and political understanding; and in modeling environments that promote dialogue and debate… The ideal and breadth of liberal education that embraces the humanities and arts as well as the social and natural sciences is at the core of Harvard’s philosophy. ’/ Drew Gilpin Faust

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* The above story is adapted from materials provided by Harvard University

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