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Left Atrial Imaging Prior to Cardioversion: Leveraging Computed Tomography to Rule Out Thrombus

Atrial Fibrillation

Evaluating contrast enhanced ECG-gated cardiac CT (CCT) as an alternative to transesophageal echocardiography (TEE) to expedite cardioversion of atrial fibrillation (AF), improve patient care and reduce hospital admissions for AF and atrial flutter.

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Participation Requirements

  • Sex:

    ALL

  • Eligible Ages:

    18 and up

Participation Criteria

Inclusion Criteria:

1. Admitted patients who require LA imaging prior to cardioversion
2. Age ≥18 years old
3. Able and willing to comply with the study procedures

Exclusion Criteria:

1. Indication for acute cardioversion (e.g. hemodynamic instability, acute coronary syndrome (ACS), or pulmonary edema)
2. Unwillingness or inability to provide informed consent
3. Contraindication to Cardiac CT

* Severe renal insufficiency(GFR\< 45ml/min)
* Allergy to intravenous contrast agents
* Contraindications to radiation exposure (for example, pregnancy)
* Inability to perform 20-second breath-hold
4. Contraindication to TEE

* Unrepaired tracheoesophageal fistula
* Esophageal obstruction or stricture
* Perforated hollow viscus
* Poor airway control
* Severe respiratory depression
* Uncooperative, unsedated patient

Study Location

University of Ottawa Heart Institute
University of Ottawa Heart Institute
Ottawa, Ontario
Canada

Contact Study Team

Primary Contact

Benjamin JW Chow, MD

[email protected]
613-696-7286
Study Sponsored By
Ottawa Heart Institute Research Corporation
Participants Required
More Information
Study ID: NCT04223505