ROCHESTER, Minn. — When it comes to treating a serious illness, two brains are better than one. A new study finds that nearly 9 in 10 people who go for a second opinion after seeing a doctor are likely to leave with a refined or new diagnosis from what they were first told.
Researchers at the Mayo Clinic examined 286 patient records of individuals who had decided to consult a second opinion, hoping to determine whether being referred to a second specialist impacted one’s likelihood of receiving an accurate diagnosis.
The study, conducted using records of patients referred to the Mayo Clinic’s General Internal Medicine Division over a two-year period, ultimately found that when consulting a second opinion, the physician only confirmed the original diagnosis 12 percent of the time.
Among those with updated diagnoses, 66% received a refined or redefined diagnosis, while 21% were diagnosed with something completely different than what their first physician concluded.
“Effective and efficient treatment depends on the right diagnosis,” says lead researcher Dr. James Naessens in a Mayo news release. “Knowing that more than 1 out of every 5 referral patients may be completely [and] incorrectly diagnosed is troubling ─ not only because of the safety risks for these patients prior to correct diagnosis, but also because of the patients we assume are not being referred at all.”
Considering how health insurance companies often limit the ability of patients to visit multiple specialists, this figure could be seen as troubling.
Combine this with the fact that primary care physicians are often overly-confident in their diagnoses, not to mention how a high number of patients feel amiss about questioning their diagnoses, a massive issue is revealed.
“Referrals to advanced specialty care for undifferentiated problems are an essential component of patient care,” says Naessens. “Without adequate resources to handle undifferentiated diagnoses, a potential unintended consequence is misdiagnosis, resulting in treatment delays and complications, and leading to more costly treatments.”
The researchers acknowledged that receiving a completely different diagnosis could result in a patient facing otherwise unexpected expenditures, “but the alternative could be deadly.”
According to the release, The National Academy of Medicine cites diagnostic error as an important component in determining the quality of health care in its new publication, Improving Diagnosis in Health Care:
Despite the pervasiveness of diagnostic errors and the risk for serious patient harm, diagnostic errors have been largely unappreciated within the quality and patient safety movements in health care. Without a dedicated focus on improving diagnosis, these errors will likely worsen as the delivery of health care and the diagnostic process continue to increase in complexity.
The study was published in the Journal of Evaluation in Clinical Practice.
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