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Uptodate Reference Title
Benign venous hum
Benign venous hum
Phonocardiogram recorded in a 3-year-old child with a benign venous hum. The recording was made in the supraclavicular region with the patient sitting with head extended. There is a continuous murmur which softened or resolved with flexion of the head, application of pressure over the cervical triangle, or when the patient was placed in the supine position.