Valsalva-induced cluster headache.

A case valsalva-induced cluster headache is presented. Cluster attacks induced by valsalva manoeuvres alone were only recently described, and such patients have features of cough headache and cluster headache. Attacks occurred a couple of times a week in the patient presented, solely triggered by valsalva manoeuvres including coughing, sneezing or straining and not by exercising.