Clinical forms of pulmonary embolism
| Pulmonary embolism | History | Vascular obstruction | Presentation | Typical pressures | |||||
|---|---|---|---|---|---|---|---|---|---|
| PAP | RAP | ||||||||
| Acute minor | Short, sudden onset | < 50% | Dyspnoea with or without pleuritic pain and haemoptysis | Normal | Normal | ||||
| Acute massive | Short, sudden onset | > 50% | Right heart strain with or without haemodynamic instability and syncope | 45/20 | 12 | ||||
| Subacute massive | Several weeks | > 50% | Dyspnoea with right heart strain | 70/35 | 8 | ||||
PAP, pulmonary artery pressure; RAP, mean right atrial pressure.