Articles: anesthesia.
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Observational Study
The influence of anesthetic drug strategy on the incidence of post induction hypotension in elective, non-cardiac surgery - A prospective observational cohort study.
To identify the influence of modifiable factors in anesthesia induction strategy on post-induction hypotension (PIH), specifically the type, dosage and speed of administration of induction agents. A secondary aim was to identify patient related non-modifiable factors associated with PIH. ⋯ This study was registered in the Dutch Medical Research in Humans (OMON) register on 18 June 2019 (ID: NL7810). The study was approved by the Medical Ethics Committee of the Amsterdam UMC, location AMC, the Netherlands in December 2018 (NL 6748.018.18; 2018).
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Journal of anesthesia · Dec 2024
Performance of the ratio of posterior complex length to depth measured by ultrasound as a predictor of difficult spinal anesthesia for elective cesarean delivery: a prospective cohort study.
Ultrasound view of the interlaminar structure is likely to be associated with difficult spinal anesthesia (DSA), and a poor ultrasound view which cannot show the anterior and posterior complex predicts a difficult spinal technique. As our target site is the posterior complex, this study aimed to assess whether the ratio of posterior complex length to depth measured by ultrasound can predict DSA in cesarean delivery. ⋯ ChiCTR2200065171 https://www.chictr.org.cn/showproj.html?proj=180855.
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Elderly patients are prone to develop postoperative neurocognitive deficits potentially precipitated by inadequate anesthetic management. To investigate the potential of EEG-guided individualized anesthetic titration we evaluated the effect of the patient's age on the spectral composition of the EEG during slow propofol induction. Twenty-six young (<65 years) and 25 old (≥65 years) patients received propofol until loss of responsiveness (LOR). ⋯ No patient showed a burst suppression pattern. Whereas the absolute power in all frequency bands decreased significantly with the patient's age, the spectral composition did not change throughout the extended induction period. Slow anesthesia induction may be a suitable approach for geriatric patients to preserve spectral composition patterns typically found in younger brains and to individually identify anesthetic requirements reducing the risk of excessive anesthetic effects.
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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.