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Titolo:
BALLOON TEST OCCLUSION OF THE INTERNAL CAROTID-ARTERY - CHANGE IN STUMP PRESSURE OVER 15 MINUTES AND ITS CORRELATION WITH XENON CT CEREBRALBLOOD-FLOW
Autore:
BARKER DW; JUNGREIS CA; HORTON JA; PENTHENY S; LEMLEY T;
Indirizzi:
PRESBYTERIAN UNIV HOSP,DEPT RADIOL PITTSBURGH PA 15213 PRESBYTERIAN UNIV HOSP,DEPT RADIOL PITTSBURGH PA 15213 PRESBYTERIAN UNIV HOSP,DEPT NEUROL SURG PITTSBURGH PA 15213
Titolo Testata:
American journal of neuroradiology
fascicolo: 3, volume: 14, anno: 1993,
pagine: 587 - 590
SICI:
0195-6108(1993)14:3<587:BTOOTI>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
BACK PRESSURE; ENDARTERECTOMY; SHUNT;
Keywords:
ARTERIES, CAROTID (INTERNAL); CEREBRAL BLOOD FLOW; COMPUTED TOMOGRAPHY, XENON STUDY; INTERVENTIONAL NEURORADIOLOGY, PROVOCATIVE TESTING; CATHETERS AND CATHETERIZATION, BALLOONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
11
Recensione:
Indirizzi per estratti:
Citazione:
D.W. Barker et al., "BALLOON TEST OCCLUSION OF THE INTERNAL CAROTID-ARTERY - CHANGE IN STUMP PRESSURE OVER 15 MINUTES AND ITS CORRELATION WITH XENON CT CEREBRALBLOOD-FLOW", American journal of neuroradiology, 14(3), 1993, pp. 587-590

Abstract

PURPOSE: To determine whether stump pressure changes significantly over time during temporary internal carotid artery (ICA) occlusion via an endovascular balloon, and to examine correlations between stump pressure changes and cerebral blood flow (CBF) as measured by xenon CT. METHODS: Seventy candidates for ICA sacrifice were evaluated preoperatively with a test occlusion of the cervical ICA using an endovascular balloon. Measurements of ICA stump pressure above the occlusive balloon through a distal lumen in the balloon catheter were made throughout the 15-minute test. During occlusion, CBF was measured with stable xenonCT techniques. Patients were then categorized according to CBF results. RESULTS: The stump pressure changed significantly (P < .001) duringthe occlusive period. On average, stump pressure increased 7.7 mmHg (12%). Patients determined by xenon CT to have an asymmetric decrease in CBF with balloon occlusion did not display the upward trend in stumppressures and were significantly different (P = .013) in that respectfrom patients who demonstrated either no CBF change or only minimal bilaterally symmetric decreases in CBF. CONCLUSIONS: Large overlaps among the groups prohibit the use of stump pressure changes as an accurate predictor of CBF or of stroke risk in an individual patient. However, these data suggest an autoregulatory mechanism in the cerebral circulation that evolves over a period of minutes in contrast to the traditional concept of cerebral autoregulation which is thought to occur in a matter of seconds.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 08:41:13