Carotid sinus hypersensitivity: evaluation of the vasodepressor component.

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Carotid sinus hypersensitivity: evaluation of the vasodepressor component.

The basis of the vasodepressor response in patients with carotid sinus hypersensitivity (CSH) is unknown, and prevention of recurrent vasodepressor-induced hypotension in these patients has not been possible. In this study we assessed the effectiveness of atrioventricular sequential pacing and pharmacologic interventions in the prevention of carotid sinus massage (CSM)-induced vasodepressor res...

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Vasodepressor carotid sinus syncope.

There have been few reports of vasodepressor carotid sinus syncope, as opposed to the cardioinhibitory type, and no definitive treatment has been described. A 58 year old man developed episodes of syncope after surgery and radiotherapy for a laryngeal tumour. The episodes were characterised by hypotension, sharp pain in the right neck, dizziness, and bradycardia. A temporary pacemaker failed to...

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Mayer wave activity in vasodepressor carotid sinus hypersensitivity.

AIMS Mayer waves are low frequency blood pressure waves, whose modulation involves central/peripheral baroreflex pathways. Although vasodepressor carotid sinus hypersensitivity (VDCSH) is a common hypotensive disorder in ageing, the mechanism of VDCSH is unknown. We hypothesize that VDCSH is due to impaired baroreflex function and that Mayer wave amplitude and oscillation frequency are therefor...

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Assessment of the vasodepressor reflex in carotid sinus syndrome.

BACKGROUND Assessment of the vasodepressor reflex in carotid sinus syndrome is influenced by the method of execution of the carotid sinus massage and the coexistence of the cardioinhibitory reflex. METHODS AND RESULTS Carotid sinus massage reproduced spontaneous symptoms in 164 patients in the presence of hypotension or bradycardia (method of symptoms). When an asystolic pause was induced, th...

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Benefits of fludrocortisone in the treatment of symptomatic vasodepressor carotid sinus syndrome.

OBJECTIVE To assess treatment with fludrocortisone in vasodepressor carotid sinus syndrome. PATIENTS AND METHODS Eleven patients, mean (SD) age 83 (5) years, with daily dizzy episodes and a median of five (range two to 20) syncopal episodes over a median of one year were studied. All had vasodepressor carotid sinus syndrome (> 50 mm Hg fall in systolic blood pressure during carotid sinus mass...

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ژورنال

عنوان ژورنال: Circulation

سال: 1985

ISSN: 0009-7322,1524-4539

DOI: 10.1161/01.cir.71.5.927