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Updated: Oct 1, 2025
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Published on: January 7, 2018
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Cases of Azygous Coil Extraction
James R Sampognaro1, Robert K Lewis1, Eric Black-Maier1
1Cardiac Electrophysiology Section, Division of Cardiology, Duke University Medical Center and the Duke Clinical Research Institute, Durham, North Carolina.
Heart Rhythm O2
|March 4, 2022
Summary
Azygous coils can be safely removed using standard lead extraction techniques, even after long dwell times. These cases demonstrate successful extraction without complications, offering proof of concept for this procedure.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Device Extraction
Background:
- Outcomes of azygous coil extraction are not well-documented.
- Azygous coils are used in cardiac device implantation.
Purpose of the Study:
- To evaluate procedural and clinical outcomes of patients undergoing device extraction with an azygous coil in situ.
Main Methods:
- Retrospective analysis of 2 patients undergoing device extraction with an azygous coil in situ (May 2015-Jan 2021).
- Outcomes assessed included procedural success, use of laser/mechanical tools, complications, and mortality.
Main Results:
- Two patients with long dwell times (>12 months) for azygous coils underwent successful extraction.
- A 14F laser sheath was used for extraction in both cases, with complete lead removal and no intraoperative complications.
- Azygous coil dwell times were 1.33 and 6.04 years, with mean lead dwell time of 6.43 years.
Conclusions:
- Azygous coils exhibit variable courses in situ.
- Safe removal of azygous coils is feasible.
- Standard lead extraction techniques are effective for azygous coil removal.
Keywords:
Azygous coilCardiac implanted electronic devicesImplantable cardioverter-defibrillatorLead extractionLead managementMore Related Videos
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