[Syncopal vasospastic angina in a patient with familial nonobstructive hypertrophic cardiomyopathy].

We describe an unusual case of a 51-year-old woman affected with familial non-obstructive cardiomyopathy and syncopal vasospastic angina. The use of hyperventilation stress-echo testing, recommended by the authors because of its simplicity and safety, was decisive in showing the causal role of coronary spasm of the left anterior descending artery. The coronarography had not shown obstructive lesions of the coronary arteries, but during the procedure the patient had refused ergonovine or acetylcholine injections.