Right Ventricular Pump Efficiency in Secundum-Type Atrial Septal Defect
BACKGROUND: A 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).
METHODS: We 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.
RESULTS: RV pump efficiency was inversely correlated with Qp/Qs and was 60 ± 20‰ · mmHg-1 at Qp/Qs = 1. After ASD closure, RV volume, ejection fraction and free wall strain all significantly decreased, while RV pump efficiency significantly increased from 27.4 ± 13.6 to 63.9 ± 20.4‰ · mmHg-1.
CONCLUSIONS: RV pump efficiency can superiorly reflect the chronicity and severity of secundum-type ASD.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:38 |
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| Enthalten in: |
Acta Cardiologica Sinica - 38(2022), 1 vom: 28. Jan., Seite 47-55 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lai, Wei-Tsung [VerfasserIn] |
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| Links: |
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| Themen: |
Journal Article |
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| Anmerkungen: |
Date Revised 30.04.2022 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.6515/ACS.202201_38(1).20210721A |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM336034369 |
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| 500 | |a Date Revised 30.04.2022 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a BACKGROUND: A 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) | ||
| 520 | |a METHODS: We 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 | ||
| 520 | |a RESULTS: RV pump efficiency was inversely correlated with Qp/Qs and was 60 ± 20‰ · mmHg-1 at Qp/Qs = 1. After ASD closure, RV volume, ejection fraction and free wall strain all significantly decreased, while RV pump efficiency significantly increased from 27.4 ± 13.6 to 63.9 ± 20.4‰ · mmHg-1 | ||
| 520 | |a CONCLUSIONS: RV pump efficiency can superiorly reflect the chronicity and severity of secundum-type ASD | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Right ventricular pump efficiency | |
| 650 | 4 | |a Three-dimensional echocardiography | |
| 650 | 4 | |a Volumetric analysis | |
| 700 | 1 | |a Yu, Ho-Ping |e verfasserin |4 aut | |
| 700 | 1 | |a Lin, Chang-Chyi |e verfasserin |4 aut | |
| 700 | 1 | |a Yin, Wei-Hsian |e verfasserin |4 aut | |
| 700 | 1 | |a Ko, Tsung-Yu |e verfasserin |4 aut | |
| 700 | 1 | |a Hwang, Juey-Jen |e verfasserin |4 aut | |
| 700 | 1 | |a Lin, Lung-Chun |e verfasserin |4 aut | |
| 700 | 1 | |a Huang, Kuan-Chih |e verfasserin |4 aut | |
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