[Hyperperfusion syndrome as a complication of percutaneous transluminal angioplasty of the internal carotid artery].
BACKGROUND
The hyperperfusion syndrome (HS) is described as an infrequent complication of carotid endarterectomy. It may also occur in percutaneous transluminal carotid angioplasty with a similar causal mechanism and clinical features to those seen in HS related to carotid endarterectomy.


METHODS
We describe the case of a 69 year old man who developed HS at the time of transluminal carotid angioplasty and 'stenting' of symptomatic, pre-occlusive stenosis of the left internal carotid artery. This complication was not detected on the postoperative arteriography. On CT the presence of a hemispheric hematoma was confirmed. It is thought that HS is caused by a fault in autoregulation of the cerebral blood flow following correction of vascular stenosis in previously ischemic territory.


CONCLUSIONS
Most of the early complications of transluminal carotid angioplasty are ischemic. HS is rare but is a possible complication of transluminal carotid angioplasty and therefore meticulous control of the blood pressure is necessary. A CT scan after any atypical complication of angioplasty may be considered to be essential.
González
A
A
Sección de Neurorradiología Vascular Intervencionista, Hospital Universitario Virgen del Rocío, Sevilla, España. jandroglez@abonados.cplus.es
Mayol
A
A
Gil-Peralta
A
A
González-Marcos
J R
JR
Boza
F
F
Ruano
J
J
D000368:Aged; D000800:Angioplasty, Balloon / Q000009:adverse effects*; D016893:Carotid Stenosis / Q000601:surgery*; D002533:Cerebral Angiography; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology*; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed