Table 5

 Clinical signs of PAH which has progressed (cardiac specific)42

Increased intensity of the second heart sound (P2)
Transmission of the P2 to the cardiac apex
Increase in jugular venous pressure
Signs of tricuspid regurgitation
Pulmonary ejection sounds and pulmonary insufficiency murmur
Right ventricular S3 gallop (signifies right ventricular failure)
Systolic pulsation over the second left intercostal space (signifies dilated pulmonary artery)