Thirty-six percent of all clinicians said they don’t use any assessment tool to gauge asthma control in patients with moderate to severe asthma, including 86% of EM physicians and 42% of PCPs – the specialties most apt to report no use.
As for guideline use, 83% of allergists/immunologists and 81% of pediatricians surveyed use the National Asthma Education and Prevention Program (NAEPP) guidelines. Pulmonologists tend to use these guidelines less often (37%), as they also rely on the Global Initiative for Asthma (GINA) (54%) and European Respiratory Society (ERS)/American Thoracic Society (ATS) guidelines (43%).
About two thirds (62%) of NP/PA/RNs favor the NAEPP guidelines, as do 49% of PCPs and critical care medicine physicians and 31% of EM physicians. Sixty percent of EM physicians don’t use guidelines at all.
Chief Culprits Behind Poor Asthma Control
Clinicians tend to see a lack of appropriate treatment as the greatest barrier for patients with moderate to severe asthma; 63% of pulmonologists feel this way, as do 60% of allergists/immunologists, 52% of PCPs, 50% of pediatricians, and 45% of NP/PA/RNs, compared with just 32% of EM and critical care medicine physicians. EM (67%) and critical care medicine (54%) physicians are also more apt to think that the patient not seeing a provider is the greatest barrier.
Overall, most clinicians surveyed link poor asthma control to poor medication adherence and social or environmental risk irritants, such as smoking, secondhand smoke exposure, vaping, and pollutants.
“No surprise here,” said Holley. “In my experience, medication adherence and environmental risks or irritants are big factors in patients with moderate to severe asthma who don’t respond to conventional, standard asthma treatment and continue to progress.”
“We know from data that poor control is related to socioeconomic status and behavioral health. We also know that proper inhaler use and compliance are a big problem. Does this account for most ‘progression’? That’s hard to say, I suppose, but certainly these are big factors,” Holley added.
Echoing Holley, Navitha Ramesh, MD, clinical assistant professor of medicine at the Department of Clinical Sciences, Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania, who is also a member of the Moderate to Severe Asthma Center of Excellence steering committee, said the biggest barriers to treatment, in her experience, are “poor health literacy, medication nonadherence, poor social support, and tobacco use.”
The survey was conducted August 29, 2018, to October 11, 2018. Pulmonologists were recruited from CHEST, and all other clinicians were recruited from Medscape members. Patients with moderate to severe asthma account for at least half of all patients with asthma seen by pulmonologists, allergists/immunologists, and critical care medicine physicians; this proportion falls to about 30% among pediatricians and PCPs. Of the clinicians surveyed, patients with moderate to severe asthma are overwhelmingly referred to pulmonologists. Among the reasons for referral are multiple emergency department visits, poor control, failure on first-line therapy, and confounding factors.
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