Pulmonary hypertension (PH) definition
| PH | In the presence of a (supra)cardiac shunt |
| Bi-directional or R-L flow through shunt | |
| In the absence of a (supra)cardiac shunt | |
| RVSP >40 mm Hg and/or | |
| RVSP/SBP >0.5 and/or | |
| Every degree of systolic septal flattening |
RVSP, right ventricular systolic pressure; SBP, systolic blood pressure.