Barriers to enrollment in pulmonary rehabilitation: medical knowledge analysis

Objective: To assess clinicians' knowledge about pulmonary rehabilitation, and identify the barriers faced when referring patients with health insurance to pulmonary rehabilitation. Methods: This was a survey-based cross-sectional study conducted in 2019, at a private reference hospital in Sao Paulo, Brazil. Eligible participants were physicians registered with the following specialties: internal medicine, geriatrics, cardiology, pulmonology or thoracic surgery. Results: We collected 72 responses, and 99% of participants recognized chronic obstructive pulmonary disease as a potential indication for pulmonary rehabilitation; less often (75%), they listed interstitial lung disease, bronchiectasis and pulmonary hypertension. Most participants (67%) incorrectly associated pulmonary rehabilitation with lung function improvement, while 28% of cardiologists and 35% of internists/geriatricians failed to recognize benefits on mood disorders. Notably, 18% of participants recommended pulmonary rehabilitation only to patients on supplemental oxygen and 14% prescribed only home physical therapy, patterns more commonly seen among non-respiratory physicians. The three most perceived barriers to referral and adherence were health insurance coverage (79%), transportation to pulmonary rehabilitation center (63%) and lack of social support (29%). Conclusion: Financial, logistic and social constraints pose challenges to pulmonary rehabilitation enrollment, even for patients with premium healthcare insurance. Moreover, physician knowledge gaps may be an additional barrier to pulmonary rehabilitation referral and adherence. Providing continued medical education, incorporating automatic reminders in electronic medical records, and using telerehabilitation tools may improve pulmonary rehabilitation referral, adherence, and ultimately, patient care.