Rethinking Operability in Large VSD: The Diastolic Pulmonary Shunt Index (DiPSI) and a Probabilistic Perspective

Pulmonary arterial hypertension (PAH) is a progressive disease with significant morbidity and mortality. Due to nonspecific symptoms, diagnosis can be challenging and subject to substantial delays. Using data from Mayo Clinic′s electronic health records, we looked at causes of delayed diagnosis and whether earlier diagnosis means better outcomes.

We read with great interest the recent article on patient-specific hemodynamic modeling to estimate microvascular disease burden and predict response to pulmonary endarterectomy (PEA) in chronic thromboembolic pulmonary hypertension (CTEPH) [1]. The integration of multiscale structure-based modeling with routine clinical data addresses the key challenges of quantifying distal microvascular remodeling and anticipating heterogeneous hemodynamic responses after technically successful PEA.

Pulmonary artery wedge pressure is a crucial measurement for differentiating between hemodynamic categories of pulmonary hypertension (PH), particularly Groups 1 and 2. In this prospective study, we analyzed the diagnostic utility of checking wedge oxygen saturation to confirm wedge position during right heart catheterization in patients referred for PH.

Iron deficiency (ID) is prevalent in pulmonary hypertension(PH), but there is no consensus on ID definition and its possible correlation to prognostic markers. Hence, in this study, PH-patients were recruited at the University Hospital Zurich from May 2019 to April 2021. Clinical and hemodynamic characteristics were recorded at inclusion and venous blood samples were taken.