Selective defect of baroreflex blood pressure buffering with intact cardioinhibition in a woman with familial aniridia
| Autor: | J. P. Ballantyne, A. Barnes, M. O. McCarron, G A Jamal, Peter O.O. Julu, Stig Hansen |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Adult
Sympathetic nervous system medicine.medical_specialty Baroreceptor Sympathetic Nervous System Valsalva Maneuver medicine.medical_treatment Blood Pressure Baroreflex Autonomic Nervous System Orthostatic vital signs Internal medicine Valsalva maneuver Medicine Humans Aniridia business.industry Heart Sudomotor Mayer waves medicine.anatomical_structure Blood pressure Endocrinology nervous system Female Neurology (clinical) business |
| Zdroj: | Neurology. 49(6) |
| ISSN: | 0028-3878 |
| Popis: | We report a symptomatic failure of the baroreceptor blood pressure (BP) buffering mechanism in a woman with familial aniridia. Her baseline BP oscillated at 0.1 Hz, the frequency of Mayer waves, with increased amplitude on standing without orthostatic hypotension. Although sudomotor function was normal, cutaneous thermoregulatory function and BP response to Valsalva's maneuver were abnormal. The defective BP buffer mechanism suggests Mayer waves could be a sympathetic mediated cardiovascular resonance. Baroreceptor cardioinhibition was intact. We presume that the lesion is in the rostral aspect of the dorsal medulla oblongata. |
| Databáze: | OpenAIRE |
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