Pulmonary Rehabilitation for Diseases Other Than COPD

Review the current literature regarding pulmonary rehabilitation (PR) for non-chronic obstructive pulmonary disease (COPD) diagnoses and what the evidence is regarding expected outcomes based on disease manifestations. Literature search was performed using PubMed database from March 2024 to June 2024. Terms included "pulmonary rehabilitation" and "exercise training" in conjunction with key words "interstitial lung disease (ILD)," "idiopathic pulmonary fibrosis," "asthma," "bronchiectasis," "post-acute sequalae of SARS-CoV-2 (PASC)," "long COVID," "pulmonary hypertension (PH)," and "lung cancer." Results were filtered for English language, randomized controlled trial, clinical trial, observational trial, meta-analysis, and guidelines. Emphasis was placed on more recent publications since prior reviews, where applicable. The abundance of literature involved ILD, where studies have demonstrated significant improvements in exercise capacity, health-related quality of life (HRQoL), and dyspnea, despite heterogeneity of diseases; benefits are similar to those seen with COPD. Those with milder disease have more sustained benefits longer term. Patients with asthma benefit in severe disease, lower exercise activity, elevated body mass index, or when comorbid conditions are present, and breathing exercises can improve symptoms of breathlessness. Patients with PASC have a multitude of symptoms and lack benefits in HRQoL measurements; PR improves performance on post-COVID-19 functional status scale, a more comprehensive measurement of symptoms. Those with bronchiectasis benefit from PR when airflow limitation or exacerbations are impacting symptoms and HRQoL. Those with stable PH can improve their exertional capacity without change in disease severity. PR reduces perioperative complications in those with lung cancer and preserve fitness during treatment.