A rare heart condition in newborns where the heartbeat sounds like an embryo's heart, usually indicating serious illness.
From Greek embryon (embryo) plus kardia (heart). The term describes how a sick infant's irregular heartbeat resembles a primitive fetal heartbeat pattern.
Doctors who hear embryocardia know they're listening to a sign of severe distress—a newborn's heart regressing to primitive patterns. It's one of those medical terms that paints a clinical picture with just two words.
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