The commonest cause for death in massive pulmonary embolism is
- RV shock
- Massive Hemoptysis
- Primary VF originating right ventricle
- Refractory Type 1 Respiratory failure
Answer : 1 .(RV shock , RV standstill and RV , RV stunning is the unequivocal cause for sudden death in pulmonary embolism . This RV shock occur very early .Once the patient survives the initial RV scare (say 24-48 hours) usually do well if prompt thrombolysis and anti-coagulation is administered )
Dr.S.Venkatesan MD 
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