Oxygen treatment for cluster headache attacks at different flow rates: a double-blind, randomized, crossover study.

Background: Cluster headache attacks can, in many patients, be successfully treated with oxygen via a non-rebreather mask. In previous studies oxygen at flow rates of both 7 L/min and 12 L/min was shown to be effective. The aim of this study was to compare the effect of 100% oxygen at different flow rates for the treatment of cluster headache attacks.

Post-Operative Cluster Headache Following Carotid Endarterectomy.

Background: Secondary cluster headache following carotid endarterectomy (CEA) is a rare condition and may help us understand the pathophysiology of primary cluster headache.

Summary: We describe 2 patients diagnosed with cluster headache, fulfilling the ICHD-IIIB criteria, following CEA. Neither of the patients had headache prior to surgery.

Cluster headache and oxygen: is it possible to predict which patients will be relieved? A prospective cross-sectional correlation study.

Response to 100 % oxygen as acute treatment for cluster headache is relative low considering certain subgroups or predictors. The primary purpose of the present study was to find prospectively which factors differ between responders and non-responders to oxygen therapy. The second goal was to find whether any of these differences would clarify the mechanism of pain reduction by oxygen and cluster headache pathophysiology.

The history of oxygen inhalation as a treatment for cluster headache.

Overview: Oxygen has been a generally accepted treatment method for cluster headache attacks ever since Kudrow (1981) conducted a controlled trial showing that oxygen was equally or even more effective than ergotamine injections.

Purpose: The aim of the present study was to provide a historical perspective of oxygen treatment in cluster headache and to find the origin of this treatment. Oxygen for cluster headache was first described by Horton in 1952 and for migraine patients in 1940 by Alvarez.