Discrete subvalvular aortic stenosis in childhood. Study of 51 patients.

@article{Newfeld1976DiscreteSA,
  title={Discrete subvalvular aortic stenosis in childhood. Study of 51 patients.},
  author={Edgar Newfeld and Alexander J. Muster and Milton H. Paul and Farouk S. Idriss and W L Riker},
  journal={The American journal of cardiology},
  year={1976},
  volume={38 1},
  pages={53-61}
}
Fifty-one children with discrete subvalvular aortic stenosis were studied between 1951 and 1974. The three anatomic types of obstruction found were the thin membranous type (43 cases), the fibromuscular collar type (5 cases) and the tunnel type (3 cases). The obstruction was usually severe, and the median left ventricular to aortic systolic pressure gradient was 90 mm Hg. Progressive obstruction with an increasing gradient was documented in 10 patients by serial cardiac catherizations… CONTINUE READING
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