NCT03092388

Brief Summary

This study aims to investigate the influence of a potential leg fluid shift (LFS) in patients with chronic heart failure (CHF) and obstructive sleep apnea (OSA) or central sleep apnea (CSA).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Feb 2015

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2015

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2016

Completed
12 months until next milestone

First Submitted

Initial submission to the registry

March 21, 2017

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 27, 2017

Completed
Last Updated

April 4, 2017

Status Verified

March 1, 2017

Enrollment Period

1.2 years

First QC Date

March 21, 2017

Last Update Submit

March 30, 2017

Conditions

Keywords

Sleep-Disordered BreathingHeart FailureLeg Fluid Shift

Outcome Measures

Primary Outcomes (1)

  • ∆ Leg Fluid Shift (LFS)

    \[%\] Difference between the raw data of leg fluid volume before and after sleep.

    one night

Secondary Outcomes (14)

  • Apnea-Hypopnea-Index (AHI)

    one night

  • Cheyne-Stokes-Respiration

    one night

  • Oxygen-Desaturation-Index (ODI)

    one night

  • Time Oxygen Saturation < 90% (TSpO2<90%)

    one night

  • Oxygen Saturation (SpO2)

    one night

  • +9 more secondary outcomes

Other Outcomes (10)

  • Cardiac Index

    one hour

  • ∆ pcCO2

    one hour

  • ∆ pcO2

    one hour

  • +7 more other outcomes

Study Arms (2)

Study Group Basic

EXPERIMENTAL

Patients receive Multi Frequency Bioimpedance Analysis (mfBIA) before and after sleep recording by Polysomnography/Polygraphy (PSG/PG) in hospital. Capillary Blood Gas Analysis (CBGA) is performed before and after sleep according to mfBIA.

Diagnostic Test: Multi Frequency Bioimpedance Analysis (mfBIA)Diagnostic Test: Polysomnography/Polygraphy (PSG/PG)Diagnostic Test: Capillary Blood Gas Analysis (CBGA)

Study Group Extended

EXPERIMENTAL

Patients receive Multi Frequency Bioimpedance Analysis (mfBIA) before and after sleep recording by Polysomnography/Polygraphy (PSG/PG) in hospital. Capillary Blood Gas Analysis (CBGA) is performed before and after sleep according to mfBIA. Additionally, during daytime a special test with random parts of the study group basic is performed: A tilting table with hemodynamic monitoring is used to induce an artificial LFS by moving patients from vertical into horizontal position. Bodyfluid changes are monitored by mfBIA during this procedure.

Diagnostic Test: Multi Frequency Bioimpedance Analysis (mfBIA)Diagnostic Test: Polysomnography/Polygraphy (PSG/PG)Diagnostic Test: Capillary Blood Gas Analysis (CBGA)Diagnostic Test: Tilting Table with Hemodynamic Monitoring

Interventions

Multi Frequency Bioimpedance Analysis (mfBIA) uses very small electric current at different frequencies (5, 50, 100 kHz) to measure the resistance and reactance of the entire body and different segmental body compartiments. With a special software total body fluid can be calculated. By analyzing raw data at different frequencies a detailed view on body and segments fluid distribution is possible.

Also known as: Nutriguard M, Data Input, Darmstadt, Germany
Study Group BasicStudy Group Extended

Sleep is digital recorded by using PSG/PG in hospital and manually analyzed by physicians according to current AASM guidelines.

Study Group BasicStudy Group Extended

CBGA is a less invasive method to gain arterial blood like gas samples without the punctation of an artery. After inducing a good capillary perfusion, capillary blood is taken by a small punctation of the tip of one ear. The sample is automatically analysed in a blood gas analyzer.

Study Group BasicStudy Group Extended

A tilting table offers the opportunity to turn a study subject automatically from vertical into horizontal position and back. By using non-invasive monitoring technique, hemodynamic parameters are recorded permanently.

Also known as: Task Force Monitor, CNsystems, Vienna, Austria
Study Group Extended

Eligibility Criteria

Age18 Years+
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Chronic Heart Failure
  • reduced left ventricular ejection fraction (LVEF) ≤ 45%
  • NYHA I - IV

You may not qualify if:

  • current existing sleep apnoea breathing therapy
  • significant chronic obstructive pulmonary disease (COPD) Tiffenau-Index: \<70%
  • respiratory insufficiency with need for a long time oxygen therapy
  • hypercapnic state in rest at day time
  • acute myocardial infarction at moment of study
  • instable angina pectoris at moment of study
  • cardiac surgery in last twelve weeks
  • stroke or TIA in last twelve weeks
  • implantable cardioverter-defibrillator, if there is no security clearance of the fabricator
  • chronic kidney disease \> Stage III

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Heart - and Diabetes CenteHerz- und Diabeteszentrum NRW, Ruhr-Universitaet Bochum, Bad Oeynhausen

Bad Oeynhausen, North - Rhine Westfalia, 32545, Germany

Location

MeSH Terms

Conditions

Sleep Apnea, ObstructiveSleep Apnea, CentralCheyne-Stokes RespirationSleep Apnea SyndromesHeart Failure

Interventions

PolysomnographyHemodynamic Monitoring

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System DiseasesSigns and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and SymptomsHeart DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

Monitoring, PhysiologicDiagnostic Techniques and ProceduresDiagnosisDiagnostic Techniques, Cardiovascular

Study Officials

  • Thomas Bitter, MD

    Herz- und Diabeteszentrum NRW, Ruhr-Universitaet Bochum, Bad Oeynhausen, Germany

    STUDY DIRECTOR
  • Schindhelm Florian

    Herz- und Diabeteszentrum NRW, Ruhr-Universitaet Bochum, Bad Oeynhausen, Germany

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Senior Physician

Study Record Dates

First Submitted

March 21, 2017

First Posted

March 27, 2017

Study Start

February 1, 2015

Primary Completion

April 1, 2016

Study Completion

April 1, 2016

Last Updated

April 4, 2017

Record last verified: 2017-03

Data Sharing

IPD Sharing
Will not share

Locations