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January 17, 2003Acta Psychiatrica Scandinavica

Antipsychotics and QT prolongation

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Why the study?

Do antipsychotic drugs increase the risk of cardiac QT prolongation, dysrhythmia, and sudden death?

Population

Patients receiving antipsychotic drugs

Design

Systematic_review

Authors

DTDavid TaylorNorthern Illinois University

Discussion

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Implication

Supports ECG monitoring and low-dose strategies with antipsychotics; confirms QTc-mortality link but leaves absolute risk imprecise.

Structured PICO

Do antipsychotic drugs increase the risk of cardiac QT prolongation, dysrhythmia, and sudden death?

P
Population
Patients receiving antipsychotic drugs
I
Intervention
Antipsychotic drugs
O
Outcome
Cardiac QT prolongation, dysrhythmia (specifically torsade de pointes), and sudden deathsafety

Antipsychotics are associated with QTc prolongation and potential dysrhythmia, necessitating careful low-dose prescribing, avoidance of metabolic interactions, and potential ECG monitoring.

Limitations

  • Available data do not allow assessment of relative or absolute risk of dysrhythmia or sudden death
  • Cardiac QTc interval is difficult to measure precisely or accurately
  • Methodological considerations preclude assuming any antipsychotic is free of the risk of QTc prolongation

Cite This Study

David Taylor (2003) studied this question.

synapsesocial.com/papers/6a83faa32b578ef1603e9a3bhttps://doi.org/10.1034/j.1600-0447.2003.02078.x
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Electrocardiographic Abnormalities in Patients Treated With Clozapine2000 · 109 citations
  2. 2Electrophysiologic substrate of torsade de pointes: Dispersion of repolarization or early afterdepolarizations?1989 · 277 citations
  3. 3Association of autonomic dysfunction and clozapine2001 · 137 citations
  4. 4Concentration-related pharmacodynamic effects of thioridazine and its metabolites in humans1996 · 96 citations
  5. 5Influence of Lead Selection and Population on Automated Measurement of QT Dispersion1998 · 162 citations