• Journal of anesthesia · Feb 2021

    A modified algorithm for choosing the most appropriate intraoperative pacemaker mode for patients with permanent pacemaker in non-cardiac surgery.

    • Yusaku Terada, Tetsuya Miyashita, Yusuke Nagamine, and Takahisa Goto.
    • Department of Anesthesiology, Yokohama City University Hospital, 3-9 Fukuura, Kanazawa, Yokohama City, 236-0004, Japan.
    • J Anesth. 2021 Feb 1; 35 (1): 145-149.

    AbstractTo avoid the risk of R-on-T incident and the unnecessary decrease of cardiac output, we devised an algorithm consisting of six steps for choosing the most appropriate intraoperative pacemaker (PM) mode, which is modified from Heart Rhythm Society and the American Society of Anesthesiologists expert consensus statement. Following this algorithm, we reviewed previous operations at our hospital to evaluate the appropriateness of the choices. Six of 78 cases (7.7%) were unfit to the algorithm because of an inappropriate mode change. The PM mode was changed preoperatively in four patients, even though the surgical site was under the umbilicus. In one case of the two other cases, the PM mode was changed from AAI to VOO. This case could not be avoided by the previous algorithm of the expert clinical statements. In another case, the anesthesiologist did not change PM mode even though the patient underwent parotidectomy and his heart rate depended on PM. Prospective research on this algorithm could clarify its usefulness in the future. Moreover, discussions about this algorithm could help develop this field of study and improve the intraoperative management of PMs.

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