Case report reveals left ventricular obstruction affecting circulation in a newborn, suggesting need for hybrid treatment strategy.
Accessory mitral valve tissue is a rare congenital anomaly that may cause left ventricular outflow tract obstruction. This may be the first case report in a neonate, describing accessory mitral valve tissue producing a significant left ventricular outflow tract obstruction, resulting in a duct-dependent systemic circulation perfusing the neck and head vessels. This report also discusses why a hybrid palliative strategy was adopted.
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Al-Maskari et al. (2025) studied this question.
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