Clinical Physiology of Circulation

Chief Editor

Leo A. Bockeria, MD, PhD, DSc, Professor, Academician of Russian Academy of Sciences, President of Bakoulev National Medical Research Center for Cardiovascular Surgery


Pulmonary blood flow. Is it possible to evaluate ex tempore?

Authors: Lomakin M.V., Rybka M.M., Kodzokova Z.A., Shcherbak A.V.

Company:
Bakoulev National Medical Research Center for Cardiovascular Surgery, Moscow, Russian Federation

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DOI: https://doi.org/10.24022/1814-6910-2024-21-1-79-87

UDC: 612.215.8

Link: Clinical Physiology of Blood Circulaiton. 2024; 21 (1): 79-87

Quote as: Lomakin M.V., Rybka M.M., Kodzokova Z.A., Shcherbak A.V. Pulmonary blood flow. Is it possible to evaluate ex tempore? Clinical Physiology of Circulation. 2024; 21 (1): 79–87 (in Russ.). DOI: 10.24022/1814-6910- 2024-21-1-79-87

Received / Accepted:  03.02.2024 / 11.03.2024

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Abstract

Near-Infrared Spectroscopy (NIRS) has been used for a long time to measure of the tissue saturation of organs in the large circulatory circle in the anesthesiology-resuscitation. This article provides data that allow us to using NIRS monitoring to determine the saturation of lung tissue. The present paper presents the data of intraoperative measurement of pulmonary saturation by NIRS spectroscopy directly above the lung tissue and at superficial location of the sensor in the lung projection in an animal in an acute experiment, as well as in a 3-year-old child during the main stages of surgical treatment of partial anomalous pulmonary vein drainage using artificial circulation. When measuring the pulmonary saturation in a laboratory animal with heterogeneous thickness of the thorax (from 27 to 42 mm in different areas), transthoracic and direct thoracotomy measurements were not comparable at the same time intervals. In a child with a depth of the hyperechogenic line calculated by ultrasound sonography of about 10 mm, the measurement of pulmonary tissue saturation parameters transthoracic and transpleurally at thoracotomy did not differ on the same side. At the same time, the index of pulmonary oximetry was not constant, but depended on the stage of surgery, ventilation and its parameters.

About Authors

  • Maksim V. Lomakin, Anesthesiologist-Intensivist; ORCID
  • Mikhail M. Rybka, Dr. Med. Sci., Professor, Head of Department of Anesthesiology, Resuscitation and Intensive Care with Early Rehabilitation Group; ORCID
  • Zera A. Kodzokova, Anesthesiologist-Intensivist; ORCID
  • Anastasiya V. Shcherbak, Cardiovascular Surgeon; ORCID

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