Cerebral oximetry and stump pressure as indicators for shunting during carotid endarterectomy: comparative evaluation. 2011

Charalambos L Tambakis, and George Papadopoulos, and Theodoros N Sergentanis, and Nikolaos Lagos, and Eleni Arnaoutoglou, and Nicos Labropoulos, and Miltiadis I Matsagkas
Department of Surgery, University of Ioannina, Ioannina, Greece.

The purpose of this work is to investigate the correlation between regional oxygen saturation (rSO(2)) changes and stump pressure (SP) during cross-clamping of the internal carotid artery in carotid endarterectomy (CEA) and verify the perspectives of rSO(2) to become a criterion for shunting. Sixty consecutive CEAs under general anesthesia were studied prospectively. Selective shunting was based on SP ≤40 mmHg exclusively. Regression analysis with high order terms and receiver operating characteristic analysis were performed to investigate the association between ΔrSO(2)(%) and SP and to determine an optimal ΔrSO(2)(%) threshold for shunt insertion. A quadratic association between ΔrSO(2)(%) and SP was documented regarding the baseline to one and five minutes after cross-clamping intervals. A cut-off of 21 and 10.1% reduction from the baseline recording was identified as optimal for the distinction between patients needed or not a shunt regarding the first and fifth minute after cross-clamping, respectively. In conclusion, cerebral oximety reflects sufficiently cerebral oxygenation during CEA compared with SP, providing a useful mean for cerebral monitoring.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010092 Oximetry The determination of oxygen-hemoglobin saturation of blood either by withdrawing a sample and passing it through a classical photoelectric oximeter or by electrodes attached to some translucent part of the body like finger, earlobe, or skin fold. It includes non-invasive oxygen monitoring by pulse oximetry. Pulse Oximetry,Oximetry, Pulse,Oximetries,Oximetries, Pulse,Pulse Oximetries
D010100 Oxygen An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration. Dioxygen,Oxygen-16,Oxygen 16
D011237 Predictive Value of Tests In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test. Negative Predictive Value,Positive Predictive Value,Predictive Value Of Test,Predictive Values Of Tests,Negative Predictive Values,Positive Predictive Values,Predictive Value, Negative,Predictive Value, Positive
D011446 Prospective Studies Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group. Prospective Study,Studies, Prospective,Study, Prospective
D012044 Regression Analysis Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable. Regression Diagnostics,Statistical Regression,Analysis, Regression,Analyses, Regression,Diagnostics, Regression,Regression Analyses,Regression, Statistical,Regressions, Statistical,Statistical Regressions
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D001795 Blood Pressure Determination Techniques used for measuring BLOOD PRESSURE. Blood Pressure Determinations,Determination, Blood Pressure
D002340 Carotid Artery Diseases Pathological conditions involving the CAROTID ARTERIES, including the common, internal, and external carotid arteries. ATHEROSCLEROSIS and TRAUMA are relatively frequent causes of carotid artery pathology. Carotid Atherosclerosis,Common Carotid Artery Disease,Internal Carotid Artery Disease,Arterial Diseases, Carotid,Arterial Diseases, Common Carotid,Arterial Diseases, External Carotid,Arterial Diseases, Internal Carotid,Atherosclerotic Disease, Carotid,Carotid Artery Disorders,Carotid Atherosclerotic Disease,Common Carotid Artery Diseases,External Carotid Artery Diseases,Internal Carotid Artery Diseases,Arterial Disease, Carotid,Artery Disease, Carotid,Artery Diseases, Carotid,Artery Disorder, Carotid,Artery Disorders, Carotid,Atherosclerotic Diseases, Carotid,Carotid Arterial Disease,Carotid Arterial Diseases,Carotid Artery Disease,Carotid Artery Disorder,Carotid Atheroscleroses,Carotid Atherosclerotic Diseases,Disorders, Carotid Artery

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