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eISSN: 1643-3750

Published: 2020-02-24

Effect of Pressure-Controlled Ventilation-Volume Guaranteed on One-Lung Ventilation in Elderly Patients Undergoing Thoracotomy

Wenyu Yao, Mingyuan Yang, Qinghao Cheng, Shiqiang Shan, Bo Yang, Qian Han, Jun Ma

(Center for Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China (mainland))

Med Sci Monit 2020; 26:e921417

DOI: 10.12659/MSM.921417

BACKGROUND: Volume-controlled ventilation (VCV) in one-lung ventilation (OLV) is most commonly used in thoracotomy, but pressure-controlled ventilation-volume guaranteed (PCV-VG) is used in elderly patients to improve arterial oxygenation, reduce inflammatory factors, and decrease acute lung injury (ALI). The purpose of this study was to investigate the effects of these 2 different ventilation modes - VCV versus PCV-VG - during OLV in elderly patients undergoing thoracoscopic lobectomy.
MATERIAL AND METHODS: Sixty patients undergoing thoracoscopic lobectomy from September 2018 to February 2019 at Cangzhou Central Hospital, Hebei, China were randomly assigned to a VCV group or a PCV-VG group. Pulmonary dynamic compliance (Cdyn), peak inspiratory pressure (PIP), arterial blood gas, and inflammatory factors were monitored to assess lung function. The Clinical Trial Registration Identiļ¬er number is ChiCTR1800017835.
RESULTS: Compared with the VCV group, PIP in the PCV-VG group was significantly lower (P=0.01) and Cdyn was significantly higher at 30 min after one-lung ventilation (P=0.01). MAP of the PCV-VG group was higher than in the VCV group (P=0.01). MAP of the PCV-VG group was also higher than in the VCV group at 30 min after one-lung ventilation (P=0.01). The concentration of neutrophil elastase (NE) in the PCV-VG group was significantly lower than in the VCV group (P=0.01).
CONCLUSIONS: Compared with VCV, PCV-VG mode reduced airway pressure in patients undergoing thoracotomy and also decreased the release of NE and reduced inflammatory response and lung injury. We conclude that PCV-VG mode can protect the lung function of elderly patients undergoing thoracotomy.

Keywords: one-lung ventilation, Pneumonia, ventilator-induced lung injury

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