[Baroreflex failure after chemodectoma resection].
Baroreflex failure after chemodectoma resection We present a case of baroreflex failure secondary to a unilateral injury of the glossopharyngeal nerve. The patient was operated for a left-sided chemodectoma in the carotid body. Some months after surgery she started to report presyncopal episodes exacerbated by mental stress and when standing up. During these episodes, the patient presented hypertensive crises and tachycardia. However, blood pressure was below normal ranges at rest. The diagnosis was baroreflex failure secondary to unilateral injury of the glossopharyngeal nerve. The case reported herein illustrates the fact that the presence of a bilateral injury is not essential for the occurrence of this disorder.
Servicio y Cátedra de Neurología, Hospital de Cruces, Departamento de Neurosciencias, Universidad de País Vasco, Baracaldo, Vizcaya. igomeze@meditex.es
J C
JC
Gómez Esteban
S
S
Boyero
C
C
Fernández
A
A
Sagasta
T
T
Pérez
F
F
Velasco
I
I
Allue
E
E
Lezcano
J J
JJ
Zarranz
D000368:Aged; D000792:Angiography; D000959:Antihypertensive Agents / Q000627:therapeutic use; D001342:Autonomic Nervous System Diseases / Q000209:etiology; D017704:Baroreflex; D001794:Blood Pressure / Q000187:drug effects; D003000:Clonidine / Q000494:pharmacology; D005260:Female; D061287:Glossopharyngeal Nerve Injuries; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D019635:Neurosurgical Procedures / Q000009:adverse effects*; D010236:Paraganglioma, Extra-Adrenal / Q000601:surgery*
D000959:Antihypertensive Agents; D003000:Clonidine