Bioimpedance analysis is safe in patients with implanted cardiac electronic devices

Area of Science:

• Biomedical Engineering
• Cardiology
• Medical Devices

Background:

• Increasing prevalence of cardiac implantable electronic devices (CIEDs) globally.
• Current guidelines contraindicate bioimpedance analysis (BIA) due to potential electromagnetic interference (EMI) risks.
• BIA is valuable for monitoring heart failure and nutritional disorders, but CIEDs limit its use.

Purpose of the Study:

• To evaluate the safety and potential for EMI of BIA in patients with CIEDs.
• To determine if BIA measurements affect CIED function.
• To assess the feasibility of using BIA in CIED patients for clinical management.

Main Methods:

• 200 patients with CIEDs were enrolled in the study.
• BIA was performed during routine CIED interrogations.
• Key CIED parameters (battery voltage, lead impedance, pacing thresholds, electrograms) were monitored before and after BIA.

Main Results:

• No significant changes in CIED battery voltage, lead impedance, or pacing thresholds were observed during BIA.
• No instances of oversensing or undersensing were detected in intracardiac electrograms.
• Follow-up assessments at 6 and 12 months showed no adverse effects on CIEDs.

Conclusions:

• Bioimpedance analysis (BIA) does not cause electromagnetic interference in patients with cardiac implantable electronic devices (CIEDs).
• BIA can be safely performed in patients with CIEDs, expanding its clinical utility.
• This finding supports revising guidelines to include BIA for managing conditions in CIED patients.