Subcutaneous implantable defibrillator

Subcutaneous implantable cardioverter defibrillator, or S-ICD, is an implantable medical device for detecting and terminating ventricular tachycardia and ventricular fibrillation in patients at risk of sudden cardiac arrest.[1] It is a type of implantable cardioverter defibrillator but unlike the transvenous ICD, the S-ICD lead is placed just under the skin, leaving the heart and veins untouched.

The S-ICD was developed to reduce the risk of complications associated with transvenous leads.[2] Potential complications, such as infections in the bloodstream and the need to remove or replace the leads in the heart, are minimised or entirely eliminated with the S-ICD system.

  1. ^ Westerman, Stacy B; El-Chami, Mikhael (2018). "The subcutaneous implantable cardioverter defibrillator––review of the recent data". Journal of Geriatric Cardiology. 15 (3): 222–228. doi:10.11909/j.issn.1671-5411.2018.03.004 (inactive 12 July 2025). ISSN 1671-5411. PMC 5919810. PMID 29721001.{{cite journal}}: CS1 maint: DOI inactive as of July 2025 (link)
  2. ^ Baalman, S. W. E.; Quast, A. B. E.; Brouwer, T. F.; Knops, R. E. (2018). "An Overview of Clinical Outcomes in Transvenous and Subcutaneous ICD Patients". Current Cardiology Reports. 20 (9): 72. doi:10.1007/s11886-018-1021-8. ISSN 1523-3782. PMC 6061190. PMID 29992422.
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