Factors affecting use of the Doppler-determined time from flow onset to maximal pulmonary artery velocity for measurement of pulmonary artery pressure in children.

@article{Serwer1986FactorsAU,
  title={Factors affecting use of the Doppler-determined time from flow onset to maximal pulmonary artery velocity for measurement of pulmonary artery pressure in children.},
  author={Gerald A. Serwer and Allan G Cougle and John M Eckerd and Brenda E. Armstrong},
  journal={The American journal of cardiology},
  year={1986},
  volume={58 3},
  pages={352-6}
}
Measurement of the time from onset to maximal or peak velocity (TPV) of pulmonary artery (PA) flow has been proposed as a noninvasive means of determining PA pressure. The effects of age, heart rate, increased PA pressure and flow, pulmonary valve obstruction and altered PA vascular resistance on this measurement were evaluated. In 84 children, aged 1 day to 18 years, TPV was measured using continuous-wave Doppler echocardiography. The children were separated into 3 groups. Group I (n = 33… CONTINUE READING
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