Ultrasound guidance for S‑ICD implantation
Official title: Feasibility of an Intra-operative and Non-fluoroscopic Subcutaneous ICD Positioning and Assessment of the PRAETORIAN Score During Implantation: a Pilot Study
Run by Universitätsklinikum Köln · NCT06771700 · Data updated 2026-11-12
This pilot will test whether ultrasound can replace pre‑operative X‑ray and allow intraoperative estimation of the PRAETORIAN score for patients receiving a subcutaneous ICD.
Quick facts
| Study type | Interventional |
|---|---|
| Sex | All |
| Enrollment | 20 (estimated) |
| Sponsor | Universitätsklinikum Köln Academic / other |
| Locations | 2 sites (Cologne, North Rhine-Westphalia and 1 other locations) |
| Status | Recruiting |
| Started | March 1, 2025 |
| Main results expected | October 30, 2025 |
| Study ends | November 1, 2025 |
| Registry record updated | July 9, 2025 |
| Trial ID | NCT06771700 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults scheduled for S‑ICD implantation at the center who can provide informed consent and are not pregnant.
✕Probably not a fit
Patients who require transvenous ICDs, are pregnant, cannot consent, or whose chest anatomy prevents reliable ultrasound imaging may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This pilot enrolls about 20 consecutive patients scheduled for subcutaneous ICD (S‑ICD) implantation at University Hospital Cologne. During implantation, clinicians will use ultrasound with a dummy electrode and device on the chest to choose lead and generator positions, and then confirm positioning with the current standard fluoroscopic X‑ray before implanting. The study will also test whether manual intraoperative measurements of lead‑to‑sternum distance and generator position by non‑fluoroscopic means allow calculation of the PRAETORIAN score prior to defibrillation testing. There are no deviations from standard implantation procedures and no additional follow‑up beyond the routine post‑operative chest X‑ray on day one.
Why it matters
Potential benefit: If successful, this approach could let teams use ultrasound instead of pre‑operative X‑ray and estimate the PRAETORIAN score during surgery, reducing radiation exposure and enabling earlier risk stratification.
How similar studies have gone: The PRAETORIAN score is validated on post‑operative chest X‑rays to predict defibrillation success, but using intraoperative ultrasound to determine the score is novel with limited prior data.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * consecutive patients presenting for S-ICD implantation at our institution Exclusion Criteria: * patients unable to consent. * pregnancy
Where it's running
-
University Hospital Cologne
Cologne, Germany Recruiting -
University Hospital Cologne
Cologne, North Rhine-Westphalia, Germany Not yet recruiting
Study contacts
- Study coordinator: Jakob Luker, MD
- Email: jakob.luker@uk-koeln.de
- Phone: +4947832396
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.