PSI - Issue 65

Mironov V.A. et al. / Procedia Structural Integrity 65 (2024) 147–151 Author name / Structural Integrity Procedia 00 (2024) 000–000

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Fig. 1. The real-time monitor electrocardiogram.

Fig. 2. RCG in the form of intersystolic elongations corresponding to the duration of intersystolic elongations with a ECS sensitivity up to 1000± 3 Hz.

5. Conclusion

The episode of contact with the recurrent branch of the vagus nerve was objectified by revealing episodes of increased vagal influence on heart rate regulation in the form of group intersystolic elongations during contact, and its disappearance upon termination of contact. Statistical indicators characterize an increase in vagal influence in the form of the amplitude of high-frequency waves (ARA, σs), indirectly indicating an increase in the output of neuroemitters from granules of presynaptic membranes, as well as an increase in the spectral fraction of parasympathetic waves (HF%). The technology of noninvasive contact with the recurrent branch of the vagus nerve has advantages, reducing the risk of direct intraoperative iatrogenic effects. Abdulkhabirova, F., Vanushko, V., Soldatova, T., Troshina, E., 2019. Nodular goiter. Methodological guide. Consilium Medicum, 21(12), 23–30. Palace, M., 2017. Perioperative management of thyroid dysfunction. Healthy Serv. Insight. Zulenski, H., Miller, B., Exer, P., Mizerez, A., Staub, J., 1997. Estimation of tissue hypothyroidism by a new clinical score: evaluation of patients with various grades of hypothyroidism and controls. J. Clin. Endocrinol. Metab., 82(3), 771–776. Hermann, M., Hellebart, C., Freissmuth, M., 2004. Neuromonitoring in thyroid surgery: prospective evaluation of intraoperative electrophysiological responses for the prediction of recurrent laryngeal nerve injury. Ann Surg, 240, 9–17. Barczyński, M., Konturek, A., Cichoń, S., 2009. Randomized clinical trial of visualization versus neuromonitoring of recurrent laryngeal nerves during thyroidectomy. Br J Surg, 96, 240–6. Schneider, R., Randolph, G., Dionigi, G., et al., 2016. Prospective study of vocal fold function after loss of the neuromonitoring signal in thyroid surgery: The International Neural Monitoring Study Group's POLT study. Laryngoscope, 126, 5, 1260–1266. Malik, M., Camm, A., Bigger, J., Breithardt, G., Cerutti, S., Cohen, R., et al., 1996. Heart rate variability. Standards of measurement, physiological interpretation, and clinical use. Eur. Heart. J., 17(3), 354–381. References