In patients with hypertensive pulmonary edema, a normal ejection fraction after treatment suggests that the edema was due to the exacerbation of diastolic dysfunction by hypertension--not to transient systolic dysfunction or mitral regurgitation.

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Surgical excision of extracranial arteriovenous malformations may be indicated for cosmetic or urgent medical reasons, such as haemorrhage or high output cardiac failure. However, serious haemorrhage, incomplete removal and poor cosmetic results are well-known complications encountered after this operation. Preoperative embolization under angiographic control is recommended to reduce the incidence of these problems.