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  • Title: Carotid palpation and heart rate changes in postmyocardial infarction patients.
    Author: Boone T, Rape SM.
    Journal: Arch Phys Med Rehabil; 1983 Nov; 64(11):543-7. PubMed ID: 6639316.
    Abstract:
    Forty cardiac rehabilitation patients were selected to determine the effects of carotid artery palpation at different time periods during rest, exercise, and recovery on the bicycle ergometer and following jogging-in-place. Fifteen-second carotid artery palpation was performed twice during minutes 1 and 3. The experimenter palpated during minute 1 while the subject palpated during minute 3. A significant decrease in resting heart rate occurred during minute 1 when the experimenter palpated, but no significance was evident during minute 3 when the subject palpated. During exercise with experimenter palpation, a significant decrease in HR occurred during the second 15 seconds of minute 1. Subject palpation during minute 3 did not significantly influence exercise heart rate. Both experimenter and subject palpation during minutes 1 and 3, respectively, of recovery 1 (on the bike) resulted in significant decrease in recovery heart rate. Jogging-in-place (recovery 2) was not influenced by experimenter or subject palpation. The significance of these findings lies in the fact that, although carotid palpation had a significant influence on heart rate, the differences were too small to be determined by a 10- or 15-second count. Thus, carotid palpation cannot be considered a threat to the postmyocardial infarction patient's safety.
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