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  • Title: [Changes in right ventricular function with unilateral pulmonary artery occlusion test for pre-operative evaluation prior to lung resection].
    Author: Sagara Y, Shiroishi Y, Hayashi K, Komatsu H, Murakami K, Mohri M, Katayama T.
    Journal: Nihon Kyobu Shikkan Gakkai Zasshi; 1992 Mar; 30(3):425-9. PubMed ID: 1569720.
    Abstract:
    We measured the right ventricular ejection fraction (RVEF) before and during unilateral pulmonary artery occlusion test (UPAO) by thermodilution method. We also measured the right ventricular end-diastolic volume index (RVEDVI), right ventricular end-systolic volume index (RVESVI), and right ventricular stroke volume index (RVSVI). RVEF and RVSVI were significantly decreased by UPAO (p less than 0.05), but there were no obvious changes in RVEDVI and RVESVI. Some cases showed only a small decrease in RVEF by UPAO, even though their total pulmonary vascular resistance indices were over 700 dyne.sec.cm-5/m2 during UPAO. On the other hand, some cases had a decreased in RVEF of more than 10% by UPAO, even though their total pulmonary vascular resistance indices were under 400 dyne.sec.cm-5/m2 during UPAO. We consider that it is important to measure right ventricular functions such as RVEF together with pulmonary vascular hemodynamics in the pre-operative evaluation of cases of lung resection.
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