2007
DOI: 10.1097/01.ccm.0000275392.08410.dd
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Effects of hypervolemia and hypertension on regional cerebral blood flow, intracranial pressure, and brain tissue oxygenation after subarachnoid hemorrhage*

Abstract: Vasopressor-induced elevation of mean arterial pressure caused a significant increase of regional cerebral blood flow and brain tissue oxygenation in all patients with subarachnoid hemorrhage. Volume expansion resulted in a slight effect on regional cerebral blood flow only but reversed the effect on brain tissue oxygenation. In view of the questionable benefit of hypervolemia on regional cerebral blood flow and the negative consequences on brain tissue oxygenation together with the increased risk of complicat… Show more

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Cited by 259 publications
(142 citation statements)
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“…This strategy does not treat or reverse vasospasm, but aims to ameliorate ischemia, a potential consequence of vasospasm. Induced hypertension increases CBF and brain tissue oxygenation, and reverses neurological deficits believed to be from vasospasm [51][52][53]. These effects appear to be independent of volume status.…”
Section: Hemodynamic Augmentationmentioning
confidence: 80%
“…This strategy does not treat or reverse vasospasm, but aims to ameliorate ischemia, a potential consequence of vasospasm. Induced hypertension increases CBF and brain tissue oxygenation, and reverses neurological deficits believed to be from vasospasm [51][52][53]. These effects appear to be independent of volume status.…”
Section: Hemodynamic Augmentationmentioning
confidence: 80%
“…Serebral vazospazm tedavisinde "triple-H" (hipertansif, hipervolemik, hemodilüsyon) tedavisi uzun yılladır bilinmektedir (20). Hipervolemi ve hemodilüsyon, "triple-H" tedavisinin tartışmalı kısımları olmakla birlikte teorik olarak hacim genişlemesiyle elde edilen hemodilüsyon, kalp debisini artırarak kalp dolum basınçlarını, kan basıncını ve serebral kan akımını artırabilir ve serebral iskemiyi önleyebilir (21). Ayrıca hacim genişlemesi, özellikle kan akışkanlığını düşürerek ve serebrovasküler direnci azaltarak, iskemik bölgelerin mikro dolaşımını iyileştirebilir (21).…”
Section: Subaraknoid Kanama Sonrası Gelişen Kalp Yetmezliğinde Levosiunclassified
“…La RM es más sensible en la detección de cambios precoces en el cerebro, especialmente con las técni-cas de difusión, pero el procedimiento con frecuencia es demasiado largo para pacientes críticos o inquietos. Una vez que el VE sintomático es evidente (con signos neurológicos focales), se acepta como tratamiento, junto al nimodipino, el empleo de la triple H. Lamentablemente faltan ensayos aleatorizados controlados que demuestren la eficacia de esta medida e incluso se duda del efecto individual de cada uno de sus componentes 45,68,69 . Los pacientes que no mejoran con tratamiento médico se pueden someter a angiografía cerebral y angioplastia transluminal o infusión de vasodilatadores cuando se detecta un estrechamiento focal de los vasos y aún no se ha producido infarto cerebral, pero a pesar de la popularidad de estas medidas en algunos centros especializados, tampoco existen ensayos aleatorizados 70,71 .…”
Section: Prevención Y Tratamiento De La Isquemia Cerebral Diferidaunclassified