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CompletedNCT02116686Updated Mar 31, 2015

ECG Derived Respiration for Automated Screening of Sleep Disordered Breathing in Chronic Heart Failure Patients

An observational study in Heart Failure, Sleep Apnea Syndromes and Polysomnography, sponsored by Centre Hospitalier Universitaire de Saint Etienne. Completed at 2 sites in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2015-03-31.

Sponsored by Centre Hospitalier Universitaire de Saint Etienne · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
100
Ages
18 Years and older
Sex
All
01

Study summary

The prevalence of sleep disordered breathing (SDB) reaches more than 50% in chronic heart failure patients (CHF). The main consequence is an increase risk of fatal and non-fatal cardiovascular events. A treatment by continuous positive airway pressure (CPAP) or adaptative servo-ventilation (ASV) reduces this risk. Nevertheless, 75% of severe SDB cases remains undiagnosed and untreated especially due to cost and time delay for polysomnography examination which is the gold standard for SDB diagnosis. Indeed, alternative methods are developed. Some methods, based on nocturnal ECG analysis showed promising results but they are not validated and adapted for cardiac population. Thus, the goal of present study is to test the accuracy of ECG derived respiration signal to screen SDB in a CHF population.

02

Conditions studied

  • Heart Failure
  • Sleep Apnea Syndromes
  • Polysomnography

Keywords

  • chronic heart failure
  • Polysomnography
  • Sleep Apnea Syndromes
  • Electrocardiogram
03

In context

Sleep Apnea Syndromes

2,162 studies on the registry are indexed under Sleep Apnea Syndromes; 290 are open to participants now.

This study's enrollment of 100 is close to the median of 109 across 654 observational studies indexed under Sleep Apnea Syndromes.

Browse Sleep Apnea Syndromes studies →

Lead sponsor

Centre Hospitalier Universitaire de Saint Etienne is the lead sponsor of 578 studies on the registry; 128 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Heart failure patients with sleep apnea syndrom

Inclusion criteria

  • chronic heart failure
  • left ventricular ejection fraction \< 45%
  • New York Heart Association (NYHA) index ≥ 2
  • Sleep apnea syndrom confirmed by polysomnography

Exclusion criteria

Exclusion Criteria:

  • Chronic Obstructive Pulmonary Disease with maximal Respiratory Volume \< 50%
  • Resting oxygen saturation \< 90%
  • Continuous Positive Airway Pressure (CPAP) or Adaptive Servo-Ventilation treatment
  • Life expectancy \< 1 year for other medical reasons than heart failure
  • Cardiac surgery
  • Percutaneous transluminal coronary angioplasty
  • Unstable angora during the 6 last months
  • Implantation of a pacemaker or a defibrillator during the 6 last months
  • Cerebrovascular accident or Transient Ischemic Attack during the 3 last months
  • Restless legs syndrome
  • Acute myocarditis or pericarditis during the 6 last months
  • Valvular disease
  • Pregnancy
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
100 participants (actual)
Patient registry
No

Groups and cohorts

  • Heart failure patients with sleep apnea syndrom

    For heart failure patients, a standard nocturnal in-home ventilatory polygraphic recordings were performed using an Embla device (Embla®, Broomfield, USA) and scored according to the America Academy of Sleep Medicine (AASM) recommendations (RemLogic® software, Broomfield, USA).

    Device: ventilatory polygraphic recordings

Interventions

  • Deviceventilatory polygraphic recordings

    Standard nocturnal in-home ventilatory polygraphic recordings were performed using an Embla device (Embla®, Broomfield, USA) and scored according to the AASM recommendations (RemLogic® software, Broomfield, USA).

    Also known as: Embla device (Embla®, Broomfield, USA), RemLogic® software, Broomfield, USA

06

What researchers measure

Primary outcomes

  1. Apnea Hypopnea Index (AHI)

    Standard nocturnal in-home ventilatory polygraphic recordings. The AHI is calculated only on nocturnal ECG analysis

    Time frame: At patient polygraphic recording

Secondary outcomes

  1. AHI in subgroup patient with sinusal rhythm

    Time frame: At patient polygraphic recording

  2. AHI in subgroup with implanted pacemaker

    Time frame: At patient polygraphic recording

  3. AHI in subgroup with atrial fibrillation

    Time frame: At patient polygraphic recording

  4. AHI in subgroup with bundle branch block

    Time frame: At patient polygraphic recording

07

Study locations

2 sites
  • CHU de Grenoble
    Grenoble, 38000, France
  • CHU de Saint-Etienne
    Saint-etienne, 42000, France
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 31, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02116686
Lead sponsor
Centre Hospitalier Universitaire de Saint Etienne
Responsible party
Sponsor
First posted
Apr 17, 2014
Start date
Jun 2013
Primary completion
Nov 2014
Completion
Nov 2014
Last update
Mar 31, 2015

Study contacts

Frederic ROCHE, MD PhD
study director · CHU de Saint-Etienne

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2015. You cannot join it, but the record below documents what was studied.

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