Close
  Indian J Med Microbiol
 

Figure 3 :Mitral valve and aortic valve Doppler in a 20 week fetus. Calculation of the PR interval to assess for first degree heart block is made measuring from the onset of the mitral a wave to the onset of the aortic outflow wave. a= mitral a wave, V= aortic outflow.

Figure 3 :Mitral valve and aortic valve Doppler in a 20 week fetus. Calculation of the PR interval to assess for first degree heart block is made measuring from the onset of the mitral a wave to the onset of the aortic outflow wave. a= mitral a wave, V= aortic outflow.