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October 1, 1975Circulation

Unexpected cardiac arrest in patients after surgical correction of tetralogy of Fallot.

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Population

220 patients after surgical correction of tetralogy of Fallot without bifascicular block or transient…

Design

Case_series

Follow-up

1 to 15 years

Authors

FJFrederick W. JamesTulane UniversitySKSamuel KaplanUniversity of California, Santa CruzTCTing‐Heng ChouNationwide Children's Hospital

Discussion

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Implication

Unexpected late cardiac arrest after TOF repair may signal arrhythmic risk; hypothesis-generating for arrhythmia monitoring in long-term survivors.

Key Points

  • To investigate the occurrence of unexpected cardiac arrest after surgical repair of tetralogy of Fallot and its potential link to arrhythmias.
  • Evaluated 220 patients post-surgery for cardiac arrest occurrences over a 1-15 year period.
  • Analyzed postoperative ECGs for conduction abnormalities and arrhythmias.
  • Considered antiarrhythmic therapy options for frequent premature ventricular contractions.
  • Four patients experienced unexpected cardiac arrest; three died, and one survived after treatment.
  • Survivor had documented ventricular arrhythmia which was suppressed with quinidine therapy.
  • Complete heart block could not be excluded as a contributing factor to cardiac arrest.

Structured PICO

P
Population
220 patients after surgical correction of tetralogy of Fallot without bifascicular block (complete right bundle branch block and left anterior hemiblock) or transient complete heart block immediately after surgery.
O
Outcome
Unexpected cardiac arresthard clinical

Patients who have undergone intraventricular surgery for tetralogy of Fallot may be at risk for unexpected cardiac arrest due to ventricular tachyarrhythmias, warranting evaluation for ventricular arrhythmias.

Cite This Study

James et al. (1975) studied this question.

synapsesocial.com/papers/6a759ed0f1e99ff85ab20032https://doi.org/10.1161/01.cir.52.4.691
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Also Consider

Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Surgically Induced Right Bundle-Branch Block with Left Anterior Hemiblock1972 · 177 citations
  2. 2Estimation of Cardiac Output Soon After Intracardiac Surgery with Cardiopulmonary Bypass1959 · 122 citations
  3. 3Late Postoperative Conduction Disturbances After Repair of Ventricular Septal Defect and Tetralogy of Fallot1974 · 70 citations
  4. 4Postsurgical left anterior hemiblock and right bundle-branch block.1972 · 73 citations