简介：Pulmonaryhypertensionisnotasingleentityandnotallformshavethesameprognosis.Thepurposeofthiseditorialistoprovideinformationtothegeneralcardiologistrelatingtowhichtypeofpulmonaryhypertensionthepatientisexperiencing.Inordertodothisproperly,onemustdeterminethecause,theseverity,theprognosis,anddeveloptreatmentplansforthedifferentformsofpulmonaryhypertension.Pulmonaryarterialhypertension(PAH)isthemostmalignantofthedifferenttypesofpulmonaryhypertension.Whiletypicallybeingdiagnosedinayoungerpopulationthantheothertypes,PAHmaybeshowingatrendtowardsdiagnosislaterinthelifethanwhatwasthoughtfromolderregistrydata[1].TheusualcausesofcardiovasculardeathinpatientswithPAHincludesrightheartfailureandsuddendeath[2].