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Abstracts |

Precordial Movement in Pulmonary Stenosis.

Ernest Craige, M.D., F.A.C.P.; and Roland Schmidt, M.D.
Ann Intern Med. 1965;62(5):1072-1073. doi:10.7326/0003-4819-62-5-1072_3
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This excerpt has been provided in the absence of an abstract.

Precordial movements along the left sternal border have been recorded in normal children and in children with congenital heart disease in an effort to improve the accuracy of diagnosis by external, nontraumatic methods. Displacement tracings were obtained by means of an Infraton capacitance transducer or a piezo-electric method, with excellent response in the ultra low frequency range.

The normal record, based on a study of 60 children, showed: (1) an initial outward movement during ventricular contraction which had a duration of 0.25 second or less; (2) a succeeding inward movement that exceeded the initial outward movement in magnitude; (3) a


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