Articles: general-anesthesia.
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J Clin Monit Comput · Sep 2024
Reduction of the acquisition time needed to obtain somatosensory evoked potentials by estimation of the required averaging sweep count by an algorithm.
Somatosensory evoked potentials are frequently acquired by stimulation of the median or tibial nerves (mSEPs and tSEPs) for intraoperative monitoring of sensory pathways. Due to their low amplitudes it is common practice to average 200 or more sweeps to discern the evoked potentials from the background EEG. The aim of this study was to investigate if an algorithm designed to determine the lowest sweep count needed to obtain reproducible evoked potentials in each patient significantly reduces the median necessary sweep count to under 200. 30 patients undergoing spinal surgery at the Department of Neurosurgery were included in the study. ⋯ For tSEPs the sweep count was below 200 in 11 of 15 patients (73.3%) with a mean sweep count of 106 ± 70 (mean ± SD). The calculated mean time to average the potentials could thereby be reduced from 48.8s to 13.7s for mSEPs and from 48.8s to 25.9s for tSEPs. The proposed algorithm allowed sweep count and acquisition time reduction in roughly 90% of all patients for mSEPs and in 70% of all patients for tSEPs.
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Randomized Controlled Trial
Effect of different anesthesia depths on perioperative heart rate variability and hemodynamics in middle-aged and elderly patients undergoing general anesthesia.
To analyze the effects of different anesthesia depths on perioperative heart rate variability and hemodynamics in middle-aged and elderly patients undergoing general anesthesia, and to provide a basis for clinical application. ⋯ BIS maintenance of 40 ~ 49 has little effect on perioperative heart rate variability and hemodynamics in middle-aged and elderly patients undergoing general anesthesia, which is helpful for postoperative recovery.
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Randomized Controlled Trial
Index of Consciousness monitoring may effectively predict and prevent circulatory stress induced by endotracheal intubation under general anesthesia: a prospective randomized controlled trial.
The primary objective of anesthesiologists during the induction of anaesthesia is to mitigate the operative stress response resulting from endotracheal intubation. In this prospective, randomized controlled trial, our aim was to assess the feasibility and efficacy of employing Index of Consciousness (IoC, IoC1 and IoC2) monitoring in predicting and mitigating circulatory stress induced by endotracheal intubation for laparoscopic cholecystectomy patients under general anesthesia (GA). ⋯ Chinese Clinical Trail Registry Identifier: ChiCTR2300070237 (20/04/2022).
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Background and Objectives: The incidence of proximal femoral fractures (PFFs) is rising, causing significant morbidity and mortality. Regional anesthesia (RA)'s benefits include the avoidance of intubation and mechanical ventilation, decreased blood loss, and improved analgesia. General anesthesia (GA) offers improved hemodynamic stability. ⋯ No statistically significant differences were found in total anesthesia time or complication rates. Conclusions: We did not find a difference between general and spinal anesthesia regarding complication rates, anesthesia time, or morbidity. General anesthesia remains best suited for patients receiving anticoagulation treatment and undergoing semi-urgent surgery, but, other than that, the mode of anesthesia administered remains up to the anesthesiologist's preference.