NCT02342236

Brief Summary

Postoperative Cognitive Disorders (POCD) are common in hospitalized people \> 60 year old, especially in orthopedic patients. Etiology of POCD is complex, and in some aspects still remains unclear. The role of thromboembolic events in etiology of POCD was discussed. The incidence of such events in patients who underwent big joints arthroplasty can be as high as 40 to 60%, although some cases are subclinical. Thromboembolic material can block a blood flow through a vessels in the brain. As a consequence cerebral neurons can be damaged or destroyed. After neuronal damage specific substances, such as S100B protein, glial fibrillary acidic protein (GFAP) and neuron-specific enolase (NSE) are released to the blood. The serum concentrations of these biomarkers can be measured. Moreover, the block of blood flow will decrease regional cerebral saturation in affected parts of the brain. In this project the authors would like to analyze the correlation between the regional cerebral saturation and serum concentration of both S100B protein and GFAP in orthopedic patients scheduled to primary hip arthroplasty.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
18

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jun 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

June 1, 2014

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

January 5, 2015

Completed
14 days until next milestone

First Posted

Study publicly available on registry

January 19, 2015

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2015

Completed
Last Updated

September 14, 2016

Status Verified

September 1, 2016

Enrollment Period

1.5 years

First QC Date

January 5, 2015

Last Update Submit

September 12, 2016

Conditions

Keywords

Biological Markers

Outcome Measures

Primary Outcomes (1)

  • Changes in regional cerebral oxygen during primary hip arthroplasty

    The analysis of regional cerebral oxygen saturation will start just before the anesthesia and ends just after the surgery.

    Duration of the orthopedic procedure, an expected average of 2 hours.

Secondary Outcomes (2)

  • Changes in serum levels of S100B protein from baseline at 72 hours after the surgery

    72 hours

  • Changes in serum levels of GFAP from baseline at 72 hours after the surgery

    72 hours

Study Arms (2)

cemented

OTHER

Primary hip arthroplasty with bone cement use.

Device: cemented or cementless type of hip prothesis

cementless

OTHER

Primary hip arthroplasty without bone cement use.

Device: cemented or cementless type of hip prothesis

Interventions

Eligibility Criteria

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

You may qualify if:

  • patient scheduled to primary hip arthroplasty,
  • orthopedic procedure under spinal anesthesia.

You may not qualify if:

  • patients younger than 18 y.o.,
  • surgery under general anesthesia,
  • patients who refused to participate in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Anesthesiology and Intensive Therapy

Warsaw, 04-141, Poland

Location

Related Publications (6)

  • Monk TG, Weldon BC, Garvan CW, Dede DE, van der Aa MT, Heilman KM, Gravenstein JS. Predictors of cognitive dysfunction after major noncardiac surgery. Anesthesiology. 2008 Jan;108(1):18-30. doi: 10.1097/01.anes.0000296071.19434.1e.

    PMID: 18156878BACKGROUND
  • Colonna DM, Kilgus D, Brown W, Challa V, Stump DA, Moody DM. Acute brain fat embolization occurring after total hip arthroplasty in the absence of a patent foramen ovale. Anesthesiology. 2002 Apr;96(4):1027-9. doi: 10.1097/00000542-200204000-00036. No abstract available.

    PMID: 11964616BACKGROUND
  • Vos PE, Jacobs B, Andriessen TM, Lamers KJ, Borm GF, Beems T, Edwards M, Rosmalen CF, Vissers JL. GFAP and S100B are biomarkers of traumatic brain injury: an observational cohort study. Neurology. 2010 Nov 16;75(20):1786-93. doi: 10.1212/WNL.0b013e3181fd62d2.

    PMID: 21079180BACKGROUND
  • Nylen K, Csajbok LZ, Ost M, Rashid A, Blennow K, Nellgard B, Rosengren L. Serum glial fibrillary acidic protein is related to focal brain injury and outcome after aneurysmal subarachnoid hemorrhage. Stroke. 2007 May;38(5):1489-94. doi: 10.1161/STROKEAHA.106.478362. Epub 2007 Mar 29.

    PMID: 17395862BACKGROUND
  • Wiesmann M, Steinmeier E, Magerkurth O, Linn J, Gottmann D, Missler U. Outcome prediction in traumatic brain injury: comparison of neurological status, CT findings, and blood levels of S100B and GFAP. Acta Neurol Scand. 2010 Mar;121(3):178-85. doi: 10.1111/j.1600-0404.2009.01196.x. Epub 2009 Oct 5.

    PMID: 19804476BACKGROUND
  • Slater JP, Guarino T, Stack J, Vinod K, Bustami RT, Brown JM 3rd, Rodriguez AL, Magovern CJ, Zaubler T, Freundlich K, Parr GV. Cerebral oxygen desaturation predicts cognitive decline and longer hospital stay after cardiac surgery. Ann Thorac Surg. 2009 Jan;87(1):36-44; discussion 44-5. doi: 10.1016/j.athoracsur.2008.08.070.

    PMID: 19101265BACKGROUND

MeSH Terms

Conditions

Neurocognitive Disorders

Condition Hierarchy (Ancestors)

Mental Disorders

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
DIAGNOSTIC
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
M.D., Ph.D.

Study Record Dates

First Submitted

January 5, 2015

First Posted

January 19, 2015

Study Start

June 1, 2014

Primary Completion

December 1, 2015

Study Completion

December 1, 2015

Last Updated

September 14, 2016

Record last verified: 2016-09

Locations