Studies on the mechanism of sinus node dysfunction in the sick sinus syndrome.

@article{Jordan1978StudiesOT,
  title={Studies on the mechanism of sinus node dysfunction in the sick sinus syndrome.},
  author={J L Jordan and Iwao Yamaguchi and William J. Mandel},
  journal={Circulation},
  year={1978},
  volume={57 2},
  pages={217-23}
}
The intrinsic heart rate (IHR) was determined in 17 patients with symptomatic sinus bradycardia by administering atropine 0.04 mg/kg and propranolol 0.2 mg/kg, i.v. In this way, sick sinus (SSS) patients with intrinsic sinus node (SN) dysfunction could be distinguished from those patients with disturbed autonomic regulation of SN function. Sick sinus syndrome patients with normal corrected sinus node recovery time (SNRTC), adjusted for the magnitude and direction of autonomic chronotrophy… CONTINUE READING

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The effect of atropine on sinus node function in adults with sinus bradycardia

JA Reiffel, JT Bigger, DS Reid
abstr ) Am J Cardiol • 1975

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