11 May 2016 : Clinical Research
One-Lung Ventilation with Additional Ipsilateral Ventilation of Low Tidal Volume and High Frequency in Lung LobectomyYong FengABCEF, Jianyue WangBCD, Yang ZhangDEF, Shiduan WangAEG
Med Sci Monit 2016; 22:1589-1592
BACKGROUND: To investigate the protective effects of additional ipsilateral ventilation of low tidal volume and high frequency on lung functions in the patients receiving lobectomy.
MATERIAL AND METHODS: Sixty patients receiving lung lobectomy were randomized into the conventional one-lung ventilation (CV) group (n=30) and the ipsilateral low tidal volume high frequency ventilation (LV) group (n=30). In the CV group, patients received only contralateral OLV. In the LV group, patients received contralateral ventilation and additional ipsilateral ventilation of low tidal volume of 1–2 ml/kg and high frequency of 40 times/min. Normal lung tissues were biopsied for the analysis of lung injury. Lung injury was scored by evaluating interstitial edema, alveolar edema, neutrophil infiltration, and alveolar congestion.
RESULTS: At 30 min and 60 min after the initiation of one-lung ventilation and after surgery, patients in the LV group showed significantly higher ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen than those in the CV group (P<0.001). Lung injury was significantly less severe (2.7±0.7) in the LV group than in the CV group (3.1±0.7) (P=0.006).
CONCLUSIONS: Additional ipsilateral ventilation of low tidal volume and high frequency can decrease the risk of hypoxemia and alleviate lung injury in patients receiving lobectomy.
Keywords: High-Frequency Ventilation - methods, Lung - surgery, Lung Volume Measurements, One-Lung Ventilation - methods, Positive-Pressure Respiration - methods, Thoracic Surgical Procedures - methods, Tidal Volume - physiology
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