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Uptodate Reference Title
Systolic murmur and fixed split S2 in a child with an atrial septal defect
Systolic murmur and fixed split S2 in a child with an atrial septal defect
Phonocardiogram recorded at the left upper sternal border in a 5-year-old patient with a 12 mm secundum atrial septal defect. There is a fixed split S2 (0.075 seconds). There is a systolic ejection murmur created by the increased right ventricular stroke volume.