Chronotropic Incompetence in a Young Adult: Case Report and Literature Review

Philip J. Gentlesk, Thor T. Markwood*, J. Edwin Atwood

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Chronotropic incompetence (CI) is the inability of heart rate response to meet metabolic demand. CI is associated with sinus node dysfunction, atrial fibrillation, or structural heart disease, and can lead to functional impairment. We report the case of a 34-year-old man with CI secondary to sinus node dysfunction who demonstrated significant improvement in functional capacity with rate-responsive pacing. Therapy for CI should be guided by the treatment of the underlying cause with consideration for rate-responsive pacing in symptomatic patients. The prognosis of CI is variable and dependent on underlying etiology.

Original languageEnglish
Pages (from-to)297-301
Number of pages5
Issue number1
StatePublished - Jan 2004
Externally publishedYes


  • Artificial pacemaker
  • Bradycardia
  • Heart rate
  • Sick sinus syndrome


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