cluster headache/hypoxia

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Cluster headache: the ventilatory response to transient hypoxia with pure nitrogen.

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To determine whether the carotid body plays a pathogenetic role in cluster headache, 20 cluster headache patients have been studied. Of these, 11 patients were in the interparoxysmal cluster phase, and 9 were in remission. Comparison was made with healthy subjects matched for sex, age, and smoking

Cluster headache: pulse rate changes evoked by hyperoxia and hypoxia.

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To test the influence of arterial O2 saturation (SaO2) on heart rate in cluster headache, changes in pulse rate induced by hyperoxia and hypoxia were monitored in 11 cluster headache patients (6 during cluster period, and 5 during remission). The results were compared with those obtained in 11 age

Cluster headache: the effect of low oxygen saturation.

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The present study concerns the possible relationship between hypoxia and the generation of cluster headache attacks. Fifteen controls and 25 cluster headache patients were studied. The patients were allocated into two groups according to cluster headache stage, i.e. cluster or remission period.

Association of sustained oxyhemoglobin desaturation and onset of cluster headache attacks.

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Ten episodic cluster headache patients in their active cluster period, ten patients in remission and five control subjects were monitored for minute to minute changes in oxygen saturation (SaO2) and pulse rate before and after nitroglycerin (NTG) administration. A transient but significant decrease

The pathogenesis of cluster headache.

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Cluster headache is described here as having three distinct and contiguous clinical phases. Evidence of the pathophysiological changes associated with each phase is reviewed. The first phase, the cluster period, is characterized by chronobiological aberrations and impaired sympathetic nervous system

Cluster headache: oxygen saturation and end-tidal CO2 during and without attack.

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Twenty-eight cluster headache patients were examined either in remission (n = 10), in the interparoxysmal period ("cluster phase") (n = 12), or during spontaneously occurring (n = 7), or nitroglycerin provoked (n = 7) attacks. Fourteen healthy controls participated in the study. Oxygen saturation

Timing patterns of cluster headaches and association with symptoms of obstructive sleep apnea.

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Cluster headaches (CH) frequently recur at the same point in the circadian cycle, often during sleep. They may, in some cases, represent a susceptible individual's response to hypoxemia or other physiological changes induced by obstructive sleep apnea (OSA). If and when this mechanism exists, timing

Cluster headache-like pain caused by an upper cervical meningioma.

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A 68-year-old man with chronic lung disease suffered from cluster headache (CH)-like pain associated with an upper cervical meningioma extending to compress the lower brain stem. The pain disappeared after tumour excision. We suggest that compression of the brain stem and hypoxemia associated with

Exploring the Connection Between Sleep and Cluster Headache: A Narrative Review.

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Cluster headache is a rare form of headache associated with sleep and even speculated to be a manifestation of a sleep disorder rather than a primary headache. Cluster headache exhibits both circadian and circannual rhythmicity. While attacks often occur during sleep, the implication that cluster

Hypoxic mechanisms in primary headaches.

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Background Hypoxia causes secondary headaches such as high-altitude headache (HAH) and headache due to acute mountain sickness. These secondary headaches mimic primary headaches such as migraine, which suggests a common link. We review and discuss the possible role of hypoxia in migraine and cluster

Sleep-related headache and its management.

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UNASSIGNED Sleep and headache have both generated curiosity within the human mind for centuries. The relationship between headache and sleep disorders is very complex. While Lieving in 1873 first observed that headaches were linked to sleep, Dexter and Weitzman in 1970 described the relationship

Cough, exertional, and other miscellaneous headaches.

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We have discussed several miscellaneous headache disorders not associated with structural brain disease. The first group included those headaches provoked by "exertional" triggers in various forms. These include benign cough headache, BEH, and headache associated with sexual activity. The IHS

Cluster-Like Headache Revealing Polycythemia Vera: A Case Report

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Herein, we report on a 44-year-old man who presented with cluster headache (CH)-like pain triggered by polycythemia vera (PV). He had severe unilateral head pain attacks lasting about 30 min not associated with cranial autonomic symptoms. After the exclusion of secondary etiologies, the patient was

Hyperbaric oxygen in the treatment of patients with cerebral stroke, brain trauma, and neurologic disease.

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Hyperbaric oxygen (HBO) therapy has been used to treat patients with numerous disorders, including stroke. This treatment has been shown to decrease cerebral edema, normalize water content in the brain, decrease the severity of brain infarction, and maintain blood-brain barrier integrity. In

Benefits and risks of oxygen therapy during acute medical illness: Just a matter of dose!

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Oxygen therapy is used to reverse hypoxemia since more than a century. Current usage is broader and includes routine oxygen administration despite normoxemia which may result in prolonged periods of hyperoxemia. While systematic oxygen therapy was expected to be of benefit in some ischemic diseases

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