PMID: 9424922Jan 1, 1997Paper

Does intraoperative transcranial doppler monitoring improve results of carotid endarterectomy?

Wiadomości lekarskie : organ Polskiego Towarzystwa Lekarskiego
W StaszkiewiczD Gawlikowska

Abstract

We evaluated the role of intraoperative transcranial Doppler sonography in improvement of carotid endarterectomy results. We analyzed the outcome of 38 carotid endarterectomies (CEA) performed in 22 female and 16 male patients with symptomatic carotid stenosis, aged between 43 and 78 years (av. 61.8 years). Constant measurements of peak and average velocity (Va) were taken during following stages of CEA:-after anaesthesia--during 120 s crossclamp test, -after shunt insertion (5 patients),-immediately after and 5 min after crossclamp release. We obtained following values of Va in particular stages of CEA:-after anaesthesia 0.54 m/s (0.38-1.08),-during 120 s crossclamp test 0.25 m/s (0.12-0.58),-after shunt insertion 0.47 m/s (0.32-0.78),-immediately after crossclamping 0.72 m/s (0.51-1.40),-5 min. after crossclamp release 0.62 m/s (0.42-1.27). In 2 cases no blood flow velocity increase was found after shunt insertion. The immediate correction of shunt positioning was done. In 2 other patients no hemodynamic effect after CEA was detected (no blood flow velocity increase in MCA and at the same time, no neurological impairments were noticed). After quick investigation inferior carotid artery kinking above the arteriotomy site and i...Continue Reading

Related Concepts

Related Feeds

Brain Ischemia

Brain ischemia is a condition in which there is insufficient blood flow to the brain to meet metabolic demand. Discover the latest research on brain ischemia here.

Carotid Artery Diseases

Carotid artery disease is a group of pathological conditions of the carotid artery. Discover the latest research on carotid artery disease here.