The physiological basis of pulmonary arterial hypertension

R Naeije, MJ Richter, LJ Rubin - European Respiratory Journal, 2022 - Eur Respiratory Soc
Pulmonary arterial hypertension (PAH) is a rare dyspnoea-fatigue syndrome caused by a
progressive increase in pulmonary vascular resistance and eventual right ventricular (RV) …

Persistent exertional intolerance after COVID-19: insights from invasive cardiopulmonary exercise testing

I Singh, P Joseph, PM Heerdt, M Cullinan… - Chest, 2022 - Elsevier
Background Some patients with COVID-19 who have recovered from the acute infection
after experiencing only mild symptoms continue to exhibit persistent exertional limitation that …

Clinical usefulness of right ventricle–pulmonary artery coupling in cardiovascular disease

Q He, Y Lin, Y Zhu, L Gao, M Ji, L Zhang… - Journal of Clinical …, 2023 - mdpi.com
Right ventricular–pulmonary artery coupling (RV-PA coupling) refers to the relationship
between RV contractility and RV afterload. Normal RV-PA coupling is maintained only when …

Ventilatory limitations in patients with HFpEF and obesity

TG Babb, BN Balmain, AR Tomlinson, LS Hynan… - Respiratory physiology …, 2023 - Elsevier
Heart failure with preserved ejection fraction (HFpEF) patients have an increased ventilatory
demand. Whether their ventilatory capacity can meet this increased demand is unknown …

Arterial load and right ventricular-vascular coupling in pulmonary hypertension

H Oakland, P Joseph, R Naeije… - Journal of Applied …, 2021 - journals.physiology.org
Right ventricular (RV) functional adaptation to afterload determines outcome in pulmonary
hypertension (PH). RV afterload is determined by the dynamic interaction between …

Right Heart Failure in the Intensive Care Unit: Etiology, Pathogenesis, Diagnosis, and Treatment

E Tarras, A Khosla, PM Heerdt… - Journal of Intensive …, 2023 - journals.sagepub.com
Right heart (RH) failure carries a high rate of morbidity and mortality. Patients who present
with RH failure often exhibit complex aberrant cardio-pulmonary physiology with varying …

Exercise stress echocardiography of the pulmonary circulation and right ventricular-arterial coupling in healthy adolescents

K Forton, Y Motoji, S Caravita, V Faoro… - European Heart …, 2021 - academic.oup.com
Aims To explore the effects of age and sex in adolescents vs. young or middle-aged adults
on pulmonary vascular function and right ventricular-arterial (RV-PA) coupling as assessed …

Important Functions and Molecular Mechanisms of Mitochondrial Redox Signaling in Pulmonary Hypertension

J Reyes-García, A Carbajal-García, A Di Mise… - Antioxidants, 2022 - mdpi.com
Mitochondria are important organelles that act as a primary site to produce reactive oxygen
species (ROS). Additionally, mitochondria play a pivotal role in the regulation of Ca2+ …

Noninvasive determinants of pulmonary hypertension in interstitial lung disease

P Joseph, S Savarimuthu, J Zhao, X Yan… - Pulmonary …, 2023 - Wiley Online Library
Pulmonary hypertension (PH) in interstitial lung disease (ILD) is associated with increased
mortality and impaired exertional capacity. Right heart catheterization is the diagnostic …

iCPET calculator: a web‐based application to standardize the calculation of alpha distensibility in patients with pulmonary arterial hypertension

J Elliott, N Menakuru, KJ Martin… - Journal of the …, 2023 - Am Heart Assoc
Background Pulmonary vascular distensibility associates with right ventricular function and
clinical outcomes in patients with unexplained dyspnea and pulmonary hypertension. Alpha …