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Updated: Aug 16, 2026

Optimized System for Cerebral Perfusion Monitoring in the Rat Stroke Model of Intraluminal Middle Cerebral Artery Occlusion
12:15

Optimized System for Cerebral Perfusion Monitoring in the Rat Stroke Model of Intraluminal Middle Cerebral Artery Occlusion

Published on: February 17, 2013

Effect of cardiac dysrhythmia on cerebral perfusion

B J Sand, H B Rose, W F Barker

    Archives of Surgery (Chicago, Ill. : 1960)
    |July 1, 1976
    PubMed

    Insights

    Cardiac dysrhythmia, often overlooked, can cause cerebral ischemia by reducing carotid blood flow. This study highlights its significance in transient cerebrovascular insufficiency, distinct from obstructive carotid arterial disease.

    Area of Science:

    • Neurology
    • Cardiology
    • Vascular Medicine

    Background:

    • Extracranial carotid arterial obstructive disease is a primary cause of transient cerebrovascular insufficiency.
    • Cardiac dysrhythmia is an underrecognized, nonobstructive cause of cerebral ischemia.

    Purpose of the Study:

    • To investigate the impact of cardiac dysrhythmia on cerebrovascular perfusion.
    • To differentiate cardiogenic contributions to cerebral ischemia from carotid arterial disease.

    Main Methods:

    • Experimental induction of premature ventricular contractions in dogs to measure carotid blood flow and pressure.
    • Ocular and brachial plethysmography in 210 patients with suspected carotid arterial insufficiency.
    • Analysis of plethysmographic recordings for dysrhythmias and perfusion deficits.

    Main Results:

    • Mechanically induced premature ventricular contractions decreased carotid blood flow and pressure in dogs.
    • Sixty-two of 210 patients showed abnormal ocular plethysmography.
    • Nine patients exhibited dysrhythmias linked to significant ocular perfusion deficits.

    Conclusions:

    • Cardiac dysrhythmia is a significant, often overlooked, cause of cerebral ischemia.
    • Plethysmography can reveal cardiogenic contributions to cerebrovascular insufficiency.
    • Further investigation into dysrhythmia-induced ischemia is warranted.

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