Leg Fluid Shift in Patients With Chronic Heart Failure and Obstructive or Central Sleep Apnea
Evaluation Eines Leg Fluid Shift Und Erörterung Der hämodynamischen Und Respiratorischen Auswirkungen Auf Patienten Mit Chronischer Herzinsuffizienz Und Obstruktiver Oder Zentraler Schlafapnoe
1 other identifier
interventional
40
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Feb 2015
1 active site
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
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2016
CompletedFirst Submitted
Initial submission to the registry
March 21, 2017
CompletedFirst Posted
Study publicly available on registry
March 27, 2017
CompletedApril 4, 2017
March 1, 2017
1.2 years
March 21, 2017
March 30, 2017
Conditions
Keywords
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
EXPERIMENTALPatients 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.
Study Group Extended
EXPERIMENTALPatients 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.
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.
Sleep is digital recorded by using PSG/PG in hospital and manually analyzed by physicians according to current AASM guidelines.
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.
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.
Eligibility Criteria
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
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Thomas Bitter, MD
Herz- und Diabeteszentrum NRW, Ruhr-Universitaet Bochum, Bad Oeynhausen, Germany
- PRINCIPAL INVESTIGATOR
Schindhelm Florian
Herz- und Diabeteszentrum NRW, Ruhr-Universitaet Bochum, Bad Oeynhausen, Germany
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