Implantation of cardioverter-defibrillators at St Olav’s Hospital 2006–15

Area of Science:

• Cardiology
• Medical Device Technology
• Public Health

Background:

• Implantable cardioverter defibrillators (ICDs) are crucial for patients at high risk of sudden cardiac death.
• Established treatment aims to prevent fatal arrhythmias.
• This study focuses on ICD implantation at St. Olavs hospital.

Purpose of the Study:

• To analyze patient characteristics, indications for ICD implantation, and shock frequency.
• To evaluate complications, reoperations, and temporal trends in ICD therapy.
• To ensure quality assurance of ICD implantation services.

Main Methods:

• Retrospective analysis of 598 patients who received ICDs between 2006-2015.
• Data sourced from the Pacemaker Register and electronic patient records.
• Inclusion criteria: all patients undergoing ICD implantation at St. Olavs hospital.

Main Results:

• The cohort comprised 82% men, median age 65 years; 67% had prior cardiac arrest or severe arrhythmia.
• Coronary artery disease was the most common underlying cause (n=383).
• Over a median follow-up of 3.6 years, 34% received ICD shocks (26% appropriate, 11% inappropriate), 23% had complications, and 17% died.

Conclusions:

• Findings support quality assurance for ICD implantation at St. Olavs hospital.
• Patient demographics, indications, and outcomes align with existing literature.
• The data provides a benchmark for ongoing evaluation of ICD therapy effectiveness and safety.