Abstract
The purpose of this study was to analyse the cerebral haemodynamic changes brought about by trial occlusion of the internal carotid artery (ICA). Sixteen patients with surgically inaccessible cerebral aneurysms, carotid cavernous fistulas or neck neoplasms were monitored with transcranial Doppler ultrasonography (TCD) during 90-120 s angiographic ICA balloon occlusion or ICA closure with a Selverstone clamp. The blood velocity (V) was registered continuously in both middle cerebral arteries (MCA) while the pulsatility index (PIMCA) and haemodynamic tension (Uhem MCA) were calculated. ICA closure led to an instantaneous drop in the ipsilateral VMCA, PIMCA and Uhem MCA. The VMCA thereafter increased gradually until reaching a stable level. The subjects were grouped into those with initial drops in VMCA to > or = 60% of pre-occlusion value (group 1) and those that fell to < 60% (group 2), respectively. In group 1 autoregulatory mechanisms made the PIMCA decline further, while the Uhem MCA remained unaltered during ICA closure. In group 2, however, the PIMCA did not change further, while the Uhem MCA increased slightly. The cerebral haemodynamic features during ICA test occlusion were thus essentially different in the two groups. O...Continue Reading
References
Feb 1, 1977·Journal of Neurosurgery·K JawadJ O Rowan
Oct 1, 1992·Stroke; a Journal of Cerebral Circulation·M P SpencerM A Moehring
Sep 1, 1991·Stroke; a Journal of Cerebral Circulation·R AaslidK F Lindegaard
Jan 1, 1990·The Laryngoscope·E J de VriesH Yonas
Jan 1, 1989·Stroke; a Journal of Cerebral Circulation·R AaslidH Nornes
Jan 1, 1989·Acta neurochirurgica·W SortebergH Nornes
Feb 8, 1986·Lancet·J M Bland, D G Altman
Jan 1, 1987·Journal of Neurosurgery·A J FoxG Debrun
Apr 1, 1987·Radiology·R E LatchawD Gur
Jan 1, 1968·Journal of Neurosurgery·R A Beatty, A E Richardson
May 1, 1995·Laryngo- rhino- otologie·E KellerL Solymosi
Jul 1, 1994·Journal of Neurosurgery·C A GillerA M Roseland
Jun 1, 1994·Ophthalmology·M E VargasA Berenstein
Feb 1, 1993·Stroke; a Journal of Cerebral Circulation·F RiesL Solymosi
Jan 1, 1996·Acta neurochirurgica·A SortebergH Nornes
Mar 1, 1965·Journal of Neurosurgery·H A WILKINSONW H SWEET
Jan 1, 1991·Skull Base Surgery·R W TarrH Yonas
Citations
Apr 2, 2008·Journal of Neurosurgery·Torstein R MelingWilhelm Sorteberg
Sep 18, 2013·Acta neurochirurgica·Emanuela CrobedduGiuseppe Lanzino
Nov 22, 2011·Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association·Michael R LevittBasavaraj V Ghodke
Feb 8, 2005·Neurosurgery Clinics of North America·Richard J ParkinsonH Hunt Batjer
Feb 5, 2003·Neurological Research·Jun ZhongHongliang Fu
Feb 28, 2014·The Neuroradiology Journal·Orlando GalegoEgídio Machado
Oct 1, 2008·Neurosurgery·Angelika SortebergWilhelm Sorteberg
Apr 29, 2004·Neurosurgery·Amin KassamDavid Peters
Dec 1, 2006·Acta Radiologica·K KatoJ Watarai
Oct 2, 1998·Stroke; a Journal of Cerebral Circulation·U BeeseM Dinkel
Jul 23, 2011·Neurosurgery·Tomonori IwataMasahito Nakazaki
Oct 28, 1998·Head & Neck·A SortebergH Nornes
Sep 6, 2019·Neurosurgical Review·Torstein R Meling, Gildas Patet
Jul 22, 1999·Neurosurgery·W SortebergH Nornes
Aug 19, 2017·Neurosurgical Review·Torstein R Meling
Sep 2, 2017·Current Atherosclerosis Reports·Konark MalhotraGeorgios Tsivgoulis
Dec 4, 2020·World Neurosurgery·John T ButterfieldAndrew S Venteicher