Importance of identifying the direction of pulmonary venous flow in diagnosing a cavopulmonary window: A case report and review of literature.
J Cardiol Cases
; 21(5): 179-181, 2020 May.
Article
en En
| MEDLINE
| ID: mdl-32373242
ABSTRACT
A 75-year-old male suffered from dyspnea on exertion. In a referring hospital, cardiac catheterization demonstrated a 25% increase in oxygen saturation between the high superior vena cava (SVC) and the right atrium, suggesting a pre-tricuspid left-to-right shunt. However, neither an intracardiac shunt nor a partial anomalous pulmonary venous connection was detected. Therefore, he was referred to our hospital for further evaluation. A transesophageal echocardiogram revealed a retrograde-dominant bidirectional flow in the right upper pulmonary vein (RUPV). A contrast agent injected via the left upper limb appeared in the SVC and thereafter some contrast entered into the RUPV. A three-dimensional reconstructed computed tomography showed a side-to-side communication between the RUPV and the SVC. A cavopulmonary window was definitively diagnosed, in which the RUPV not only drained into the left atrium but also connected to the SVC side-to-side. <Learning objective:
In a suspected case of a pre-tricuspid left-to-right shunt without atrial septal defect and anomalous pulmonary venous connection, a cavopulmonary window would be another differential diagnosis. This rare cardiac anomaly should be taken into consideration in diagnosing a pre-tricuspid left-to-right shunt. Identifying the direction of pulmonary venous flow can be an opportunity to find it.>.
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Base de datos:
MEDLINE
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
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En
Revista:
J Cardiol Cases
Año:
2020
Tipo del documento:
Article
País de afiliación:
Japón