Articles: anesthesia.
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J Clin Monit Comput · Dec 2024
Relationships between the qNOX, qCON, burst suppression ratio, and muscle activity index of the CONOX monitor during total intravenous anesthesia: a pilot study.
Processed electroencephalographic (EEG) indices can help to navigate general anesthesia. The CONOX (Fresenius Kabi) calculates two indices, the qCON (hypnotic level) and the qNOX (nociception). The CONOX also calculates indices for electromyographic (EMG) activity and EEG burst suppression (BSR). Because all EEG parameters seem to influence each other, our goal was a detailed description of parameter relationships. ⋯ We could describe relationships between qCON, qNOX, EMG, BSR, ceP, and ceR, which may help the anaesthesiologist better interpret the information provided. One major finding is the dependence of qCON > 80 on EMG activity. This may limit the possibility of detecting wakefulness in the absence of EMG. Further, qNOX seems generally higher than qCON, but high opioid doses may lead to higher qCON than qNOX indices.
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Journal of anesthesia · Dec 2024
Decrease of the peak heights of EEG bicoherence indicated insufficiency of analgesia during surgery under general anesthesia.
Studies show that the two peak heights of electroencephalographic bicoherence (pBIC-high, pBIC-low) decrease after incision and are restored by fentanyl administration. We investigated whether pBICs are good indicators for adequacy of analgesia during surgery. ⋯ Superior to standard anesthesia monitoring, pBICs are better indicators of analgesia during surgery.
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J Coll Physicians Surg Pak · Dec 2024
Increased Pulse Wave Velocity as a Predictor of Intraoperative Hypotension in Hypertensive Patients Undergoing Spinal Anaesthesia.
To investigate whether intra-operative hypotension could be predicted with pulse wave velocity (PWV) if measured preoperatively. ⋯ Hypotension, Hypertension, Adult, Haemodynamic, Spinal anaesthesia.