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NCT07077928Completed

Effects of Upgrading From Right Ventricular Pacing to Cardiac Resynchronization Therapy and Comparison With Dual-Chamber Defibrillator

Source: ClinicalTrials.gov · Last updated 22 Jul 2025

Brief summary (registry, in English)

Patients who consecutively underwent de novo CRT implantation, CRT upgrade, and DDDR ICD implantation at the Cardiology Clinic of Bursa Postgraduate Hospital between January 2019 and December 2023 according to the European Society of Cardiology (ESC) guideline criteria were included in the study.

Status (registry)
Completed
Study type
Observational
Enrollment
307 (actual)
First submitted
12 Jul 2025
Start date
1 Jan 2019
Primary completion date
1 Dec 2023
Lead sponsor
Bursa Postgraduate Hospital
NCT number
NCT07077928

What you commit to

  • Study type: Observational
  • Participants enrolled: 307
  • From 1 Jan 2019 to the primary completion date, 1 Dec 2023
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other illness

  • Patients with active infection or cancer

Other

  • patients with atrial fibrillation
  • LV EF higher than 50 %
  • NYHA Class 1

Who the study is looking for

  • De novo CRT group:
  • Sinus rhythm,
  • age higher than 18,
  • EF lower than 35%,
  • New York Heart Association (NYHA) class II-IV,
  • QRS \>130 ms,
  • patients with atrial fibrillation (AF) who converted to sinus rhythm and who remained symptomatic despite 3-6 months of guideline-directed medical therapy.
    • CRT upgrade group:
  • Sinus rhythm,
  • age higher than 18,
  • EF lower than 35%,
  • NYHA class II-IV,
  • QRS duration \>130 ms with RV pacing,
    • -\> 20% RV pacing rate,
  • patients with AF who converted to sinus rhythm, at least 6 months since pacemaker implantation, and symptomatic despite 3-6 months of guideline directed medical therapy.
    • DDDR ICD group:
  • Sinus rhythm,
  • age higher than 18,
  • EF lower than 35%,
  • QRS ≤120 ms,
  • NYHA class II-IV,
  • patients with AF converted to sinus rhythm,
  • receiving guideline-directed medical therapy.

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Bursa Yüksek İhtisas Hastanesi
Coordinator of this site? Confirm its status		BursaTurkey (Türkiye)Unknown status

This page is information, not medical advice. Discuss any trial with your doctor.