NCT02503215

Brief Summary

To study the effects of compression stockings on sleep apnea in hemodialysis patients with diagnosed obstructive sleep apnea. The rationale of this study consists in the fluid shift theory, which consists in the nocturnal rostral fluid shift from legs, which causes upper airways edema. The aim of this study is to evaluate if compression stockings could improve such nocturnal volume redistribution and, therefore, improve obstructive sleep apnea.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
14

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Aug 2014

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2014

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

December 26, 2014

Completed
7 months until next milestone

First Posted

Study publicly available on registry

July 20, 2015

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2015

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2016

Completed
4 months until next milestone

Results Posted

Study results publicly available

July 7, 2016

Completed
Last Updated

July 7, 2016

Status Verified

May 1, 2016

Enrollment Period

1.3 years

First QC Date

December 26, 2014

Results QC Date

March 21, 2016

Last Update Submit

May 27, 2016

Conditions

Keywords

HemodialysisObstructive sleep apneaCompression stockings

Outcome Measures

Primary Outcomes (1)

  • Change of Obstructive Apnea Severity Index Score From Baseline

    Apnea/Hypopnea index (AIH) was assessed by a validated polysomnography (EMBLA®S4500, Embla Systems Inc., Broomfield, CO, USA) at baseline and 1 week after compression stockings use. The observed results are expressed as median and interquartile range (25,75 percentiles): * AIH at baseline: 20.8 (14.2; 39.6) events/hour; * AIH after compression stockings use: 16.7 (3.5; 28.9) events/hour

    1 week

Secondary Outcomes (2)

  • Change of Heart Rate Variability Change From Baseline

    1 week

  • Change in Fluid Distribution From Baseline

    1 week

Study Arms (1)

Compression Stockings

EXPERIMENTAL

Patients will wear graduated lower limb compression stockings for a week. The investigators will evaluate if such procedure will cause better sleep performance

Device: Compression Stockings

Interventions

To evaluate the effects of compression stockings on fluid shift and sleep apnea in hemodialysis patients with obstructive sleep apnea

Compression Stockings

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients under hemodialysis
  • Patients with diagnosed obstructive sleep apnea

You may not qualify if:

  • Congestive heart failure
  • Urine output \> 500 ml/day
  • non-sinusal cardiac rhythm
  • refusal to give written consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital das Clínicas 05302050

São Paulo, São Paulo, 05403-000, Brazil

Location

Related Publications (4)

  • Elias RM, Chan CT, Paul N, Motwani SS, Kasai T, Gabriel JM, Spiller N, Bradley TD. Relationship of pharyngeal water content and jugular volume with severity of obstructive sleep apnea in renal failure. Nephrol Dial Transplant. 2013 Apr;28(4):937-44. doi: 10.1093/ndt/gfs473. Epub 2012 Nov 7.

    PMID: 23136217BACKGROUND
  • Kasai T, Motwani SS, Elias RM, Gabriel JM, Taranto Montemurro L, Yanagisawa N, Spiller N, Paul N, Bradley TD. Influence of rostral fluid shift on upper airway size and mucosal water content. J Clin Sleep Med. 2014 Oct 15;10(10):1069-74. doi: 10.5664/jcsm.4102.

    PMID: 25317087BACKGROUND
  • White LH, Lyons OD, Yadollahi A, Ryan CM, Bradley TD. Effect of below-the-knee compression stockings on severity of obstructive sleep apnea. Sleep Med. 2015 Feb;16(2):258-64. doi: 10.1016/j.sleep.2014.12.005. Epub 2014 Dec 18.

    PMID: 25620198BACKGROUND
  • Redolfi S, Arnulf I, Pottier M, Lajou J, Koskas I, Bradley TD, Similowski T. Attenuation of obstructive sleep apnea by compression stockings in subjects with venous insufficiency. Am J Respir Crit Care Med. 2011 Nov 1;184(9):1062-6. doi: 10.1164/rccm.201102-0350OC.

    PMID: 21836140BACKGROUND

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Interventions

Stockings, Compression

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Intervention Hierarchy (Ancestors)

Compression BandagesBandagesEquipment and Supplies

Limitations and Caveats

During heart rate variability analysis, two patients had techinical problems during electrocardiogram aquisition and could not habe their data analysed and were therefore excluded from final results.

Results Point of Contact

Title
Dr Bruno Caldin da Silva
Organization
Nephrology Division, University of São Paulo

Study Officials

  • Bruno C Silva, MD

    University of Sao Paulo

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

December 26, 2014

First Posted

July 20, 2015

Study Start

August 1, 2014

Primary Completion

December 1, 2015

Study Completion

March 1, 2016

Last Updated

July 7, 2016

Results First Posted

July 7, 2016

Record last verified: 2016-05

Data Sharing

IPD Sharing
Will share

Locations