Among patients with COPD, ventilatory inefficiency in response to exercise can be due to respiratory muscle dysfunction or expiratory flow limitation causing air-trapping and dynamic hyperinflation. We discuss a case of severe ventilatory limitation in response to exercise due to reduced respiratory muscle mass in the setting of gender-affirming hormone therapy (GAHT), and how the interpretation of pulmonary function testing (PFT) and respiratory symptoms among transgender and gender diverse (TGD) patients can be influenced by GAHT.
Keywords: COPD; Chronic obstructive pulmonary disease; Gender affirming care; LVRS; Lung volume reduction surgery; PFT; Personalized medicine; Pulmonary function testing; Pulmonary mechanics; Transgender.
© 2023 The Authors. Published by Elsevier Ltd.