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Role of echocardiography in patients undergoing elective cardioversion of atrial fibrillation

D I Silverman1, W J Manning

  • 1Cardiology Division, John Dempsey Hospital and University of Connecticut Health Center, Farmington, USA.

Circulation
|August 26, 1998
PubMed

Insights

Transesophageal echocardiography (TEE) offers a safe and effective approach for early cardioversion in atrial fibrillation (AF) patients, simplifying anticoagulation and speeding recovery. Omitting transthoracic echocardiography makes TEE-guided cardioversion cost-effective.

Area of Science:

  • Cardiology
  • Medical Imaging

Background:

  • Echocardiography is crucial for evaluating atrial fibrillation (AF).
  • Transthoracic echocardiography is insufficient for excluding atrial thrombi.
  • Transesophageal echocardiography (TEE) provides superior visualization of atria and thrombi.

Purpose of the Study:

  • To evaluate the safety and efficacy of a TEE-guided approach to early cardioversion in AF patients.
  • To compare TEE-guided cardioversion with conventional therapy.
  • To assess the cost-effectiveness of TEE-guided cardioversion.

Main Methods:

  • Patients with AF underwent TEE for thrombus assessment.
  • TEE-guided cardioversion was performed with therapeutic anticoagulation.
  • Comparison with conventional therapy involving 1 month of precardioversion warfarin.
  • Cost-effectiveness analysis was conducted, considering omission of transthoracic echocardiography.

Main Results:

  • TEE-guided cardioversion demonstrated a safety profile similar to conventional therapy.
  • This approach simplifies anticoagulation management and shortens the duration of sustained AF.
  • A more rapid recovery of atrial mechanical function was observed.
  • TEE-guided cardioversion is cost-effective when transthoracic echocardiography is omitted.
  • Follow-up TEE is recommended for thrombus resolution before cardioversion if a thrombus is initially detected.

Conclusions:

  • TEE-guided cardioversion is a safe, effective, and cost-effective strategy for AF management.
  • It facilitates earlier cardioversion and improved atrial function recovery.
  • Omission of transthoracic echocardiography enhances the cost-effectiveness of the TEE-guided approach.

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