Mobile heath applications for self-management in chronic lung disease: a systematic review.

Unlabelled: Integration of mobile health (mHealth) applications (apps) into chronic lung disease management is becoming increasingly popular. MHealth apps may support adoption of self-management behaviors to assist people in symptoms control and quality of life enhancement. However, mHealth apps' designs, features, and content are inconsistently reported, making it difficult to determine which were the effective components.

Design and delivery of home-based telehealth pulmonary rehabilitation programs in COPD: A systematic review and meta-analysis.

Rationale: Home-based telehealth pulmonary rehabilitation (HTPR) for chronic obstructive pulmonary disease (COPD) is increasingly common partly due to the COVID-19 pandemic. However, optimal HTPR programming has not been described. This review provides a comprehensive overview of the design, delivery, and effects of HTPR for people with COPD.

The effect of dopamine on pulmonary diffusing capacity and capillary blood volume responses to exercise in young healthy humans.

New Findings: What is the Central question? Does dopamine, a pulmonary vascular vasodilator, contribute to the regulation of pulmonary diffusing capacity and capillary blood volume responses to exercise and exercise tolerance? What are the main findings and their importance? Dopamine appears not to be important for regulating pulmonary diffusing capacity or pulmonary capillary blood volume during exercise in healthy participants. Dopamine blockade trials demonstrated that endogenous dopamine is important for maintaining exercise tolerance; however, exogenous dopamine does not improve exercise tolerance.

Abstract: Pulmonary capillary blood volume (V ) and diffusing membrane capacity (D ) expansion are important contributors to the increased pulmonary diffusing capacity (DL ) observed during upright exercise.

Pulmonary capillary blood volume response to exercise is diminished in mild chronic obstructive pulmonary disease.

Background: Previous work suggests that mild chronic obstructive pulmonary disease (COPD) patients have greater lung dysfunction than previously appreciated from spirometry alone. There is evidence of pulmonary microvascular dysfunction in mild COPD, which may reduce diffusing capacity (DLCO) and increase ventilatory inefficiency during exercise. The purpose of this study was to determine if DLCO, pulmonary capillary blood volume (Vc), and membrane diffusing capacity (Dm) are diminished during exercise in mild COPD, and whether this is related to ventilatory inefficiency and dyspnea.

Assessment of Pulmonary Capillary Blood Volume, Membrane Diffusing Capacity, and Intrapulmonary Arteriovenous Anastomoses During Exercise.

Exercise is a stress to the pulmonary vasculature. With incremental exercise, the pulmonary diffusing capacity (DLCO) must increase to meet the increased oxygen demand; otherwise, a diffusion limitation may occur. The increase in DLCO with exercise is due to increased capillary blood volume (Vc) and membrane diffusing capacity (Dm).