Articles: general-anesthesia.
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Limited literature exists on the vascular reactivity of the radial and ulnar arteries in hypertensive patients following radial artery cannulation. This study assessed the vascular reactivity of the radial and ulnar arteries by comparing Doppler images and laser speckle contrast imaging (LSCI) obtained from both normotensive and hypertensive patients after radial artery cannulation under general anesthesia. ⋯ The radial and ulnar arteries in hypertensive patients may lack a compensatory response to radial artery cannulation during general anesthesia.
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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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Randomized Controlled Trial
The effects of thoracic epidural blockade on ventilation-perfusion matching during one-lung ventilation: An exploratory study.
Electrical impedance tomography (EIT) enables continuous image acquisition, facilitating real-time measurements of ventilation and perfusion at the clinical bedside. Experimental and clinical studies on controversial effects of thoracic epidural blockade (TEB) with local anesthetics on ventilation-perfusion(V/Q) matching and hypoxia during one lung ventilation (OLV) are rare. The aim of this study was to use EIT to investigate the effects of TEB combined with general anesthesia on pulmonary perfusion distribution and V/Q matching during one-lung ventilation. ⋯ Based on the contrast-enhanced EIT evaluation of pulmonary perfusion and ventilation, TEB appears to induce a V/Q mismatch in patients undergoing OLV in the lateral position for thoracic surgery.
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Postoperative delirium is a common neurological complication, especially in older patients undergoing surgery, which is closely related to the poor prognosis of patients. The objective was to investigate the effects of esketamine on postoperative delirium in patients with general anesthesia. ⋯ According to our meta-analysis, the use of esketamine during anesthesia induction significantly reduced the incidence of postoperative delirium in patients undergoing elective general anesthesia without increasing the incidence of postoperative adverse reactions.
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Randomized Controlled Trial Comparative Study
Effect of Atracurium versus Cisatracurium on QT interval changes in patients undergoing cataract surgery: a randomized clinical trial.
Muscle relaxants are used during surgery, but their impact on ECG may differ, potentially affecting cardiac safety. This study aimed to compare the effects of Atracurium versus Cisatracurium on QT interval changes in patients undergoing cataract surgery. ⋯ Atracurium causes more QT prolongation than Cisatracurium. While both affect QTc intervals, Cisatracurium has a more stable impact on cardiac repolarization, making it safer for patients at risk of QT prolongation. Cisatracurium's minimal impact on cardiovascular function, especially in patients with low ejection fraction, makes it the preferred choice for maintaining cardiac stability.