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Echocardiographic evaluation of pulmonary venous blood flow and cardiac function changes during one-lung ventilation

Authors
 Su Hyun Lee  ;  Namo Kim  ;  Hyun IL Kim  ;  Young Jun Oh 
Citation
 INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE, Vol.8(8) : 13099-13108, 2015 
Journal Title
 INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL MEDICINE 
Issue Date
2015
Keywords
One-lung ventilation ; arterial oxygenation ; cardiac function ; echocardiography ; hypoxic pulmonary vasoconstriction ; intra-pulmonary shunt ; pulmonary venous blood flow
Abstract
OBJECTIVES: The intra-pulmonary shunt induced by one-lung ventilation (OLV), is alleviated by increased pulmonary blood flow by gravitational redistribution and hypoxic pulmonary vasoconstriction. We investigated the changes of pulmonary venous blood flow (PVBF) and biventricular function during OLV with echocardiography. And the correlation between PVBF and intra-pulmonary shunt fraction (Qs/Qt) was evaluated. METHODS: PVBF of the left upper pulmonary vein and cardiac function were measured with echocardiography in twenty-five patients who underwent elective thoracic surgery in left lateral decubitus. Qs/Qt and PaO2 were measured with blood gas analysis. Data was obtained at 10 min after two-lung ventilation in supine (TLV-S) and lateral decubitus position (TLV-L), and at 10, 20 and 30 min after OLV in lateral decubitus position (OLV-10, -20 and -30). RESULTS: There were significant changes in PVBF among TLV-S, TLV-L and OLV-10 (959.5±280.8, 1416.9±489.7 and 1999.9±670.5 ml/min; P<0.05, respectively). There were not differences in PVBF, Qs/Qt and PaO2 among OLV-10, -20 and -30. There were an inverse correlation between percent change of PVBF and change of Qs/Qt (r(2) = 0.5; P<0.0001) and positive correlations between the percent change of PVBF and change of PaO2 (r(2) = 0.4; P<0.0001) during OLV over TLV-L. No significant changes in biventricular systolic and diastolic function were observed during positional change and OLV. CONCLUSIONS: A remarkable change of PVBF relevant to gravitational distribution and hypoxic pulmonary vasoconstriction was proved by echocardiography. And PVBF changes could represent the changes of Qs/Qt and PaO2 during OLV. However, biventricular function was not impaired during OLV.
Files in This Item:
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DOI
2015
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Namo(김남오) ORCID logo https://orcid.org/0000-0002-0829-490X
Kim, Hyun IL(김현일)
Oh, Young Jun(오영준) ORCID logo https://orcid.org/0000-0002-6258-5695
Lee, Su Hyun(이수현)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/156878
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