Will rare disease screening tools come to primary care?
Asking more doctors to refer out to rare disease specialists raises an issue: There simply aren’t enough rare disease specialists in the field to go around.
Dr. Summar said partnering testing – where a general practitioner contacts a specialist to begin the process of testing based on the suspected condition – is a good stopgap solution. Telemedicine, which rose in popularity during the COVID-19 pandemic, can also play an important role in connecting patients and their providers with rare disease specialists, especially for generalists in remote communities. Dr. Summar noted he continues to see approximately 30% of his patients this way today. Telemedicine appointments can take place in the patient’s home or at the provider’s office.
“It actually provides access to folks who otherwise might not be able to either take off from work for a day – particularly some of our single parent households – or have a child who just doesn’t travel well, or can’t really get there, even if it’s the patient themselves,” he explained. “We can see patients that historically would have had trouble or difficulty coming in, so for me, that’s been a good thing.”
Telemedicine also helps give access to care for more medically fragile patients, many of whom have rare diseases, he added. While some aspects of care need to occur in person, “it’s a good 80% or 90% solution for a lot of these things,” he said.
Sharing educational videos is another way for health care providers in general practice to inform patients and their families about rare diseases. Children’s National Medical Center has created a collection of these videos in a free app called GeneClips, which is available on major smartphone app stores. However, Dr. Summar emphasized that genetic counseling should still be performed by a rare disease specialist prior to testing.
“We’re still at the point where I think having genetic counseling for a family before they’re going into testing is really advisable, since a lot of the results have a probability assigned to them,” he said. “I don’t think we’re really at the level where a practitioner is going to, first of all, have the time to do those, and I don’t think there’s enough general public awareness of what these things mean.”
Although primary care providers may one day be able to perform more generalized sequencing in their own practice, that time has not yet come – but it is closer than you think. “The technology is there, and actually the cost has come down a lot,” said Dr. Summar.
One potential issue this would create is an additional discussion to manage expectations of test results with family when the results are unclear, which “actually takes more time than counseling about a yes or no, or even an outcome that is unexpected,” explained Dr. Summar.
“[W]e’re in a midlife period right now where we’re bringing forward this new technology, but we’ve got to continually prepare the field for it first,” he said. “I think in the future we’ll see that it has much greater utility in the general setting,” he said.
Jeff Craven is a freelance journalist specializing in medicine and health.
Suggested reading
Vandeborne L et al. Information needs of physicians regarding the diagnosis of rare diseases: A questionnaire-based study in Belgium. Orphanet J Rare Dis. 2019;14(1):99.