Usefulness of implantable loop recorders in office-based practice for evaluation of syncope in patients with and...

Area of Science:

• Cardiology
• Electrophysiology
• Medical Devices

Background:

• Unexplained syncope poses diagnostic challenges in clinical practice.
• Identifying the underlying cause of syncope is crucial for appropriate patient management.
• Office-based electrophysiology practices encounter numerous syncope cases requiring advanced diagnostic tools.

Purpose of the Study:

• To evaluate the effectiveness of early implantable loop recorder (ILR) utilization for diagnosing unexplained syncope.
• To assess the diagnostic yield of ILRs in patients with and without structural heart disease.
• To determine the long-term rhythm documentation rates of ILRs in a real-world clinical setting.

Main Methods:

• A retrospective analysis of patients undergoing ILR implantation for unexplained syncope in an office-based electrophysiology practice.
• Inclusion of patients with and without known structural heart disease.
• Assessment of rhythm documentation at the time of symptomatic events during follow-up.

Main Results:

• Early ILR implantation proved effective in diagnosing unexplained syncope across diverse patient groups.
• Rhythm documentation was achieved in approximately 50% of patients after 1 year of follow-up.
• Rhythm documentation rates increased to approximately 80% by the 2-year follow-up mark.

Conclusions:

• Early ILR use is an effective strategy for evaluating unexplained syncope in electrophysiology settings.
• ILRs provide valuable diagnostic information for patients with and without structural heart disease.
• Sustained rhythm documentation by ILRs supports their utility in long-term syncope monitoring.