Table 2

 Clinical forms of pulmonary embolism

Pulmonary embolismHistoryVascular obstructionPresentationTypical pressures
PAPRAP
PAP, pulmonary artery pressure; RAP, mean right atrial pressure.
Acute minorShort, sudden onset<50%Dyspnoea with or without pleuritic pain and haemoptysisNormal
Acute massiveShort, sudden onset>50%Right heart strain with or without haemodynamic instability and syncope45/2012
Subacute massiveSeveral weeks>50%Dyspnoea with right heart strain70/358