St. Jude Medical Cardiac Lead Assessment Study (CLAS)
The objective of CLAS was to determine the prevalence and incidence of externalized conductors and other visual lead anomalies (as evidenced by imaging) and the risk of progression to electrical dysfunction. All participants within this cohort had one of the specified devices implants, including Riata leads or an SJM Implantable Cardioverter Defibrillator (ICD). A total of 2,847 leads were studied among the participants, including 670 Riata, 458 Riata ST, 982 Durata, and 737 QuickSite/QuickFlex leads. The average age of the sample was 67.0 years, and 27.1% were female. The participants were followed for three years.
Study design
Cohort - clinical
Number of participants at first data collection
2,216 (participants)
Age at first data collection
≥ 18 years (participants)
Participant year of birth
Varied (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Countries
Year of first data collection
2013
Primary Institutions
St. Jude Medical (now known as Abbott Medical Devices)
Profile paper DOI
Funders
Abbott
Ongoing?
No
Data types collected
- Interview – face-to-face
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- None
- None
- Healthcare data
Engagement
Keywords
