Appreciation of Increased Pulmonary Vascular Resistance from the Maxim

Introduction

Pulmonary hypertension (PH) is defined by mean PAP (pulmonary artery pressure) of 20 mmHg, or PVR of >2.0 Wood unit.¹ Group-3 PH are those derived from chronic lung diseases (CLD).² Several lung diseases are incriminated to cause…