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Journal of Child Neurology
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Responses of Cerebral Blood Volume and Oxygenation to Carotid Ligation and Hypoxia in Young Rabbits: Near-Infrared Spectroscopy Study

Satoru Hirano, MD

Division of Mental Retardation and Birth Defect Research, National Institute of Neuroscience

Motohiro Hasegawa, MD

Division of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, Division of Child Neurology, National Center Hospital for Mental, Nervous and Muscular Disorders National Center for Neurology and Psychiatry, Tokyo

Atsushi Kamei, MD

Division of Mental Retardation and Birth Defect Research, National Institute of Neuroscience

Takeo Ozaki, PhD

Hamamatsu Photonics Hamamatsu, Japan

Sachio Takashima, MD

Division of Mental Retardation and Birth Defect Research, National Institute of Neuroscience

After ligation of the bilateral common carotid arteries with exposure to hypoxia in young rabbits, cerebral blood oxyhemoglobin, deoxyhemoglobin, and total hemoglobin were measured by near-infrared spectroscopy. Ligation of common carotid arteries decreased oxyhemoglobin, increased deoxyhemoglobin, and slightly decreased total hemoglobin. Exposure to hypoxia with bilateral carotid ligation more remarkably decreased oxyhemoglobin and increased deoxyhemoglobin than that without carotid ligation. However, the total cerebral blood volume did not change very much. This marked reduction in the cerebral oxygenation may cause brain damage and may be an important monitoring marker for the prevention of hypoxic-ischemic encephalopathy. (J Child Neurol 1993;8:237-241).

Journal of Child Neurology, Vol. 8, No. 3, 237-241 (1993)
DOI: 10.1177/088307389300800306
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