# Shock Testing to Unmask RV Lead and GEnerator Malfunction in ICD Patients: the SURGE-ICD Registry

> **NCT04858672** · — · UNKNOWN · sponsor: **Universitätsklinikum Köln** · enrollment: 300 (estimated)

## Conditions studied

- Implantable Defibrillator Lead Dysfunction
- Implantable Automatic Defibrillator Malfunction
- Implantable Defibrillator User

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04858672
- **Lead sponsor:** Universitätsklinikum Köln
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2022-03-23
- **Primary completion:** 2025-06-15
- **Final completion:** 2025-06-15
- **Target enrollment:** 300 (ESTIMATED)
- **Last updated:** 2022-06-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04858672

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04858672, "Shock Testing to Unmask RV Lead and GEnerator Malfunction in ICD Patients: the SURGE-ICD Registry". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04858672. Licensed CC0.

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