ArticleActa Cardiologica Sinica2022
Right Ventricular Pump Efficiency in Secundum-Type Atrial Septal Defect.
Article in Acta Cardiologica Sinica, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors at 3 institutions in 1 country.
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Abstract
backgroundA well-functioning cardiopulmonary system, which works as a pump, should generate adequate stroke volume with as little stroke work as possible. We propose a new composite parameter, right ventricular (RV) pump efficiency (η) = left ventricular stroke volume / right ventricular stroke work, to describe this idea in a volume overload population with secundum-type atrial septal defect (ASD).
methodsWe consecutively enrolled 50 patients with secundum-type ASD to investigate the relationship between right-sided volume overload and RV pump efficiency. Sixteen patients with a pulmonary to systemic flow ratio (Qp/Qs) > 1.5 underwent implantation of an occluder. The paired t test was used to compare RV pump efficiency before and after ASD closure.
resultsRV pump efficiency was inversely correlated with Qp/Qs and was 60 ± 20‰ · mmHg
conclusionsRV pump efficiency can superiorly reflect the chronicity and severity of secundum-type ASD.
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