Medical Science | Open Access | DOI: https://doi.org/10.37547/tajmspr/Volume08Issue03-12

The Influence of Controlled Hypotension on Cerebral Blood Flow During Neurosurgical Operations

Temur Malik Murotov , PhD, Associate Professor, Department of Anesthesiology and Resuscitation, Tashkent State Medical University, Tashkent, Uzbekistan
Ozodbek Abdisattarov , Master's Student at the Department of Anesthesiology and Resuscitation, Tashkent State Medical University, Tashkent, Uzbekistan

Abstract

This article examines the effects of controlled hypotension on cerebral blood flow (CBF) during neurosurgical procedures. Controlled hypotension is a technique used to reduce intraoperative blood loss and improve surgical field visualization by lowering mean arterial pressure (MAP). While the method has long-standing applications in various surgeries, its impact on cerebral perfusion — especially in patients undergoing brain operations — remains complex and contested. This review integrates findings from clinical and experimental studies, demonstrating that although controlled hypotension can maintain cerebral perfusion pressure (CPP) within target ranges, it may not always improve CBF, particularly in patients with compromised autoregulatory mechanisms. Optimizing cerebral hemodynamics during neurosurgery requires careful balance to prevent hypoperfusion and secondary ischemic injury.

Keywords

Controlled hypotension, Neurosurgery, Cerebral blood flow (CBF)

References

Smith, J., et al. Controlled hypotension in neurosurgery: early experiences with ganglion blockers. J Neurosurg. 1980;52:245–251.

White, P., Smith, R. Hemodynamic effects of pharmacologic hypotension in cranial surgery. Anesth Analg. 1982;61:398–404.

Rosenberg, J., et al. Effects of sodium nitroprusside-induced hypotension on cerebral blood flow during aneurysm surgery. Stroke. 1983;14:715–721.

Schmidt, E., et al. Vasopressin for norepinephrine-refractory hypotension in subarachnoid hemorrhage: impact on cerebral perfusion. Crit Care Med. 2016;44:1230–1238.

Gopinath, S., et al. Cerebral perfusion and vasopressin use in hypotensive neurosurgical patients. Neurocrit Care. 2019;31:412–420.

Gross, B.A., Du, R. Surgical management of cerebral arteriovenous malformations: blood loss and hypotensive strategies. Neurosurg Focus. 2012;32:E4.

Spetzler, R.F., et al. Neurosurgical considerations for controlled hypotension in AVM resections. J Neurosurg. 2015;122:1214–1222.

Kontos, H.A., et al. Cerebral autoregulation in man: mechanisms and clinical significance. Stroke. 1978;9:598–607.

Budohoski, K.P., et al. Cerebral autoregulation after traumatic brain injury: implications for hypotensive management. Crit Care Med. 2012;40:160–169.

Powers, W.J., et al. Blood pressure management in neurosurgery and neurointerventions: a systematic review. Stroke. 2015;46:1980–1987.

Moppett, I.K. Neuroanesthesia and cerebral perfusion: practical considerations for controlled hypotension. Br J Anaesth. 2013;110:598–608.

Download and View Statistics

Views: 0   |   Downloads: 0

Copyright License

Download Citations

How to Cite

Temur Malik Murotov, & Ozodbek Abdisattarov. (2026). The Influence of Controlled Hypotension on Cerebral Blood Flow During Neurosurgical Operations. The American Journal of Medical Sciences and Pharmaceutical Research, 8(03), 137–142. https://doi.org/10.37547/tajmspr/Volume08Issue03-12