Mechanical correlates of the third heart sound.

  title={Mechanical correlates of the third heart sound.},
  author={Donald D. Glower and R L Murrah and Carla Olsen and James Wayne Davis and James S. Rankin},
  journal={Journal of the American College of Cardiology},
  volume={19 2},
In seven chronically instrumented conscious dogs, micromanometers measured left ventricular pressure, and ultrasonic dimension transducers measured left ventricular minor-axis diameter; the latter recording was filtered to examine data between 20 and 100 Hz. Acceptable external heart sounds were recorded with a phonocardiographic microphone in four of the seven dogs. With each dog sedated, intubated and mechanically ventilated, data were obtained during hemodynamic alterations produced by… CONTINUE READING


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