INTRAOPERATIVE DIAGNOSIS OF CEREBRAL ISCHEMIA USING TRANS CRANIAL OXYMETRY IN RECONSTRUCTIVE OPERATIONS ON CAROTID ARTERIES

R.N. Lebedeva, A.V. Gavrilenko, B.I. Karavaev, S.I. Skrylev
Department of General Resuscitation, Department of Vascular Surgery, Scientific Center of Surgery, Russian Academy of Medical Sciences,
Moscow, Russia

At present much attention is paid in this country and abroad to the intraoperative monitoring of cerebral ischemia at operations on bra hiocephalic arteries. Several techniques of the intraoperative monitoring are available: transcranial Doppler, electroencephalography, somatosensory evoked potentials, paracentetic measurement of intravascular pressure, etc. However, not all techniques indicated meet the criteria for diagnostic accuracy, significance and safety of examination. Non-invasive cerebral oxymetry is a modality which satisfies the above requirements. The study was performed by means of an INVOS system 3100 manufactured by SOMANETICS (USA). Cerebral oxymetry is based on the principle of optic spectroscopy using infrared light (wavelength range 650-1100 nm). The monitoring was performed in 28 patients with braohiocephalic artery lesion. The data obtained document the high diagnostic accuracy and safety of the technique under discussion.

KEY WORDS: cerebral ischemia, transcranial oxymetry reconstructions of carotid arteries.

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