Do gender differences exist in pacemaker implantation?--results of an obligatory external quality control program

Area of Science:

• Cardiology
• Medical device research
• Health outcomes research

Background:

• Pacemaker implantation is a common procedure for cardiac rhythm management.
• Understanding demographic influences on pacemaker outcomes is crucial for personalized medicine.
• Previous studies have suggested potential gender-based differences in cardiovascular device performance.

Purpose of the Study:

• To investigate the influence of patient gender on primary pacemaker implantation.
• To analyze differences in indications, device selection, and complication rates between genders.
• To evaluate real-world outcomes from a large patient cohort in Germany.

Main Methods:

• Retrospective analysis of a mandatory external quality control database (2003-2006).
• Inclusion of 17,826 patients from 72 centers undergoing primary stationary pacemaker implantation.
• Comparison of clinical characteristics, pacing parameters, and complication incidence based on gender.

Main Results:

• Men presented with more atrioventricular (AV) blocks and less sick sinus syndrome (SSS) or atrial fibrillation with bradycardia compared to women.
• Elderly men (≥80 years) received more dual-chamber devices for AV block and SSS indications.
• Women exhibited higher atrial pacing thresholds, lower P-wave amplitudes, and significantly more acute complications (pneumothorax, pocket hematoma).

Conclusions:

• Gender is a significant factor influencing primary pacemaker implantation.
• Women face less favorable outcomes, including a higher risk of acute complications.
• These findings highlight the need for gender-specific considerations in pacemaker selection and management.