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Persistent left ventricular dysfunction in takotsubo cardiomyopathy after pacemaker implantation.

Satoshi Kurisu1, Ichiro Inoue, Takuji Kawagoe

  • 1Department of Cardiology, Hiroshima City Hospital, Hiroshima, Japan. skurisu@nifty.com

Circulation Journal : Official Journal of the Japanese Circulation Society
|April 26, 2006
PubMed
Summary

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Takotsubo cardiomyopathy can occur after pacemaker implantation in elderly women with complete atrioventricular block. Persistent left ventricular dysfunction was observed even after recovery.

Area of Science:

  • Cardiology
  • Cardiac Electrophysiology
  • Cardiomyopathy Research

Background:

  • Pacemaker implantation is a common procedure for managing bradyarrhythmias.
  • Complete atrioventricular block necessitates pacing for hemodynamic stability.
  • Takotsubo cardiomyopathy is a form of reversible heart muscle dysfunction.

Observation:

  • Two elderly female patients developed takotsubo cardiomyopathy following dual-chamber pacemaker implantation.
  • The indication for pacing was complete atrioventricular block in both cases.
  • Persistent left ventricular dysfunction was noted during the convalescence period.

Findings:

  • The cases suggest a potential association between pacemaker implantation and takotsubo cardiomyopathy.
  • Elderly women with pre-existing conduction abnormalities may be at increased risk.

Related Experiment Videos

  • Left ventricular dysfunction may be prolonged, extending beyond the acute phase.

    • Implications:

    • Further investigation is warranted to understand the mechanism linking pacemaker implantation to takotsubo cardiomyopathy.
    • Clinical vigilance for cardiac dysfunction post-pacemaker placement in at-risk populations is recommended.
    • This association may inform patient selection and post-procedural monitoring protocols.