Anesthesia and analgesia
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Anesthesia and analgesia · Apr 2014
Randomized Controlled Trial Multicenter StudyPostoperative Delirium in a Substudy of Cardiothoracic Surgical Patients in the BAG-RECALL Clinical Trial.
Low average volatile concentration shows some association with post-operative delirium in a sub-study analysis of cardiothoracic patients admitted post-operatively to ICU, although clinical implications are unclear. Use of BIS was not statistically significantly associated with a lower incidence of delirium, although there was a trend to lower incidence.
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Anesthesia and analgesia · Apr 2014
Randomized Controlled Trial Comparative StudyA comparison of lidocaine and bupivacaine digital nerve blocks on noninvasive continuous hemoglobin monitoring in a randomized trial in volunteers.
Blood hemoglobin can be monitored continuously and noninvasively with a noninvasive spectrophotometric sensor (Masimo SpHb). The perfusion index (PI) of the finger is directly related to the clinical accuracy of SpHb. We evaluated those variables that influence PI without the influences of surgery and anesthesia. ⋯ A DNB increases PI and finger temperature. These increases lasted 2 to 3 hours longer with bupivacaine than lidocaine. The increases in PI were associated with slightly higher SpHb values. We conclude that the DNB induces increases in PI and temperature of the finger. Because of the close relationship between finger temperature, PI, and SpHb, consistently increasing finger temperature and PI could increase the accuracy of SpHb.