Study checks if testing heart devices during replacement is worthwhile

NCT ID NCT04206371

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study followed 143 people who had a defibrillator (ICD) replaced to see if testing the device's ability to deliver a shock is safe and useful. The test involves briefly inducing a fast heart rhythm under anesthesia. The goal was to check for device problems, like abnormal shock impedance, that might need fixing. The study did not test a new treatment but aimed to improve how doctors manage ICD replacements.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • CHU de Caen

    Caen, Normandy, 14000, France

  • CHU de Toulouse-Hôpital Rangueil

    Toulouse, Occitanie, 31400, France

  • CMC Ambroise Paré

    Neuilly-sur-Seine, Île-de-France Region, 92200, France

  • Centre Hospitalier Henri Duffaut

    Avignon, Provence-Alpes-Côte d'Azur Region, 84902, France

  • Hôpital Privé du Confluent

    Nantes, Pays de la Loire Region, 44277, France

  • Hôpital Trousseau

    Chambray-lès-Tours, Centre-Val de Loire, 37170, France

  • Institut Lorrain du Coeur et des Vaisseaux Louis Mathieu-CHU de Nancy-Hôpitaux de Brabois

    Vandœuvre-lès-Nancy, Grand Est, 54500, France