2. The strategy of mechanical ventilation during cardiopulmonary bypass as
a predictive factor for pulmonary complications in the intensive care unit

Authors

  • I. Wachruschew Heart Center, CF UMC, Astana, Kazakhstan, Центр Сердца КФ UMC, Астана Казахстан, UMC КҚ Жүрек Орталығы, Астана Қазақстан https://orcid.org/0009-0008-8840-2608
  • T. Li Heart Center, CF UMC, Astana, Kazakhstan, Центр Сердца КФ UMC, Астана Казахстан, UMC КҚ Жүрек Орталығы, Астана Қазақстан https://orcid.org/0000-0002-3581-4843
  • A. Kuanyshbek Heart Center, CF UMC, Astana, Kazakhstan, Центр Сердца КФ UMC, Астана Казахстан, UMC КҚ Жүрек Орталығы, Астана Қазақстан https://orcid.org/0000-0001-6431-5173
  • S. Tulegenov Heart Center, CF UMC, Astana, Kazakhstan, Центр Сердца КФ UMC, Астана Казахстан, UMC КҚ Жүрек Орталығы, Астана Қазақстан https://orcid.org/0000-0001-7283-8935
  • A. Zhailauova Heart Center, CF UMC, Astana, Kazakhstan, Центр Сердца КФ UMC, Астана Казахстан, UMC КҚ Жүрек Орталығы, Астана Қазақстан https://orcid.org/0000-0002-1504-9240

DOI:

https://doi.org/10.35805/BSK2024I002

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Abstract

Background. Pulmonary complications are the second most common complication after cardiac surgery with cardiopulmonary bypass. Pulmonary atelectasis can occur from various intraoperative causes such as prolonged operation, time of anaesthesia more than 3-4 hours, use of a thoracic artery, use of cardiopulmonary bypass during surgery, lack of ventilation, haemotransfusion of 4 or more units of packed red blood cells in the perioperative period. Impact of mechanical venatilation during cardiopulmonary bypass still unknown.

Methods. Prospective, randomised study at one centre. Adult patients undergoing cardiac surgery with a pump by sternotomy for coronary artery disease were included. Patients were randomised into two groups – one group receiving mechanical ventilation and one group receiving no ventilation during cardiopulmonary bypass. The main endpoint was PaO2/FiO2 as a marker for the quality of ventilation and perfusion measured. Secondary endpoints were postoperative pulmonary complications such as atelectasis and prolonged mechanical ventilation of more than 72 hours.

Results. 190 consecutive patients were included, 92 and 98 in each group. No significant difference was found in the PaO2/FiO2 ratio in the groups, p=0.591. A significant difference was found in the number of atelectasis during ultrasound investigation of the lungs in the non-ventilated group, p = 0.0001.

Conclusion. On-pump cardiac surgery without mechanical ventilation can lead to atelectasis of the lungs.

Keywords

Mechanical ventilation, Cardiopulmonary bypass, Atelectasis

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Published

2024-05-21

Issue

No. 1 (2024)

Section

Статьи