Direct and series transmission of left atrial pressure perturbations to the pulmonary artery: a study using wave-intensity analysis.

@article{Hollander2004DirectAS,
  title={Direct and series transmission of left atrial pressure perturbations to the pulmonary artery: a study using wave-intensity analysis.},
  author={Ellen H Hollander and Gary M. Dobson and Jiun-Jr Wang and K. H. Parker and John V. Tyberg},
  journal={American journal of physiology. Heart and circulatory physiology},
  year={2004},
  volume={286 1},
  pages={H267-75}
}
Pressure waves are thought to travel from the left atrium (LA) to the pulmonary artery (PA) only retrogradely, via the vasculature. In seven anesthetized open-chest dogs, a balloon was placed in the LA, which was rapidly inflated and deflated during diastole, early systole, and late systole. High-fidelity pressures were measured within and around the heart. Measurements were made at low volume [LoV; left ventricular end-diastolic pressure (LVEDP) = 5-9 mmHg], high volume (HiV; LVEDP = 16-19… CONTINUE READING