NCT02302560

Brief Summary

The purpose of this prospective observational study is to investigate the changes in sleep architecture after a hip surgery and its potential association with postoperative delirium and postoperative cognitive dysfunctions respectively.

Trial Health

30
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Feb 2015

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
withdrawn

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

First Submitted

Initial submission to the registry

November 7, 2014

Completed
20 days until next milestone

First Posted

Study publicly available on registry

November 27, 2014

Completed
2 months until next milestone

Study Start

First participant enrolled

February 1, 2015

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2019

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2019

Completed
Last Updated

April 18, 2018

Status Verified

April 1, 2018

Enrollment Period

4 years

First QC Date

November 7, 2014

Last Update Submit

April 17, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • Changes in prevalence of rapid eye movement sleep

    Changes in prevalence of rapid eye movement (REM) sleep in the preoperative night compared to the night following the first postoperative day, including potentially compensatory sleep during daytime after surgery. Sleep architecture will be measured with the Somnoscreen device for mobile polysomnography for a total time duration of 36 h (beginning in the preoperative evening, to be finished the morning of the second postoperative day).

    Up to 36 hours

Secondary Outcomes (18)

  • Insomnia Severity Index

    Up to 90 days after the operation

  • Malnutrition

    Up to 90 days after the operation

  • Epsworth Sleepiness Scale

    Up to 90 days after the operation

  • Postoperative Cognitive Dysfunction

    Up to 90 days after the operation

  • Depth of anesthesia

    At time of surgery

  • +13 more secondary outcomes

Other Outcomes (4)

  • Tissue Inhibitor of Metalloproteinases

    At time of spinal anesthesia

  • Metalloproteinases

    At time of spinal anesthesia

  • ASA (physical status classification system) status

    At the beginning of the investigation

  • +1 more other outcomes

Study Arms (1)

Patients with elective hip surgery

Patients with elective hip surgery (implementation or replacement of hip joint endoprotheses).

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients with elective hip surgery (implementation or replacement of hip joint endoprothesis)

You may qualify if:

  • Male and female patients with age 50 years and above
  • Intervention for hip joint endoprosthesis or replacement of endoprosthesis at the Department of Anesthesiology and Intensive Care Medicine, Campus Virchow-Klinikum, Charité - University Medicine Berlin

You may not qualify if:

  • Lacking willingness to save and hand out data within the study
  • Missing informed consent of the patient
  • Patients with diagnosed and treated sleep disorders
  • Patients with psychiatric diseases
  • Patients with injuries or operations of the enteral tract and the esophagus respectively in the last four weeks before the hip surgery
  • Allergies to any substance of the electrode fixing material
  • Dermatoses in the area of the electrodes to be fixed

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Anesthesiology and Intensive Care Medicine Berlin

Berlin, 13353, Germany

Location

Study Officials

  • Claudia Spies, MD, Prof.

    Charite University, Berlin, Germany

    STUDY DIRECTOR
0

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Univ.-Prof. Dr. C. Spies

Study Record Dates

First Submitted

November 7, 2014

First Posted

November 27, 2014

Study Start

February 1, 2015

Primary Completion

February 1, 2019

Study Completion

November 1, 2019

Last Updated

April 18, 2018

Record last verified: 2018-04

Locations