Learning and research

'Microbes/Parasites and Sex Differences in PVDs' is part of the Virtual Symposium Series by the iPVD, a global education programme that highlights top-notch research on inflammation and infectious PVD.

Pericardial effusion (PEF) in PAH may be a marker of worsening disease or associated with autoimmune conditions. Sotatercept was not initially reported as associated with the development or progression of PEF. We describe PAH patients taking sotatercept who were found to have new or worsening PEF and examine associated comorbidities.

High-risk acute pulmonary embolism (PE) is associated with significant in-hospital mortality. Large-Bore Mechanical Thrombectomy (LBMT) is a treatment option for acute PE, but data on its efficacy in high-risk PE was limited. This prospective case series reported the outcomes of 14 patients with high-risk PE treated using a novel multipurpose mechanical aspiration system (MMAS). 

Chronic thromboembolic pulmonary hypertension (CTEPH) is a complication of pulmonary embolism that is characterized by chronic obstruction of pulmonary arteries because of organized thrombi. Pulmonary endarterectomy (PEA) is the primary treatment of choice for CTEPH, which aims to clear the pulmonary arteries as completely as possible to decrease right ventricular afterload, thereby improving pulmonary hypertension (PH).

Pulmonary arterial hypertension (PAH) is a chronic, progressive, and ultimately life-threatening disease characterized by vascular remodeling and increasing pulmonary vascular resistance. Despite significant advances in diagnostic tools and therapeutic strategies, clinical intervention often begins only when patients become symptomatic—typically at New York Heart Association (NYHA) functional class II or higher.

In this PH Community Call, we discussed:

• Treatment Response and Survival in Methamphetamine‐Associated Pulmonary Arterial Hypertension by Cole Uhland and Franz P Rischard

Children with single ventricle heart disease (SVHD) demonstrate decreased arginine/NO metabolism following Stage 2 (Glenn) palliation, associated with poor postoperative outcomes. It is unknown if arginine dysregulation persists at Stage 3 (Fontan). 

Chronic thromboembolic pulmonary hypertension (CTEPH) is a rare but severe complication of pulmonary embolism (PE), yet its underlying mechanisms remain poorly understood. Peptidyl-prolyl cis/trans isomerase (Pin1), a regulatory enzyme involved in thrombosis, inflammation, and vascular remodeling, may contribute to pulmonary vascular disease. 

Macitentan 10 mg and tadalafil 40 mg single-tablet combination therapy (M/T STCT) has been evaluated in the global A DUE study (NCT03904693). Here, we report the results of a subgroup analysis in participants from China.

Pulmonary arterial hypertension (PAH) is a fatal disease with limited available treatments and is characterized by pulmonary vascular remodeling. Substance P (SP) may be involved in vascular remodeling in patients with PAH. However, the underlying mechanism is currently unknown.