NCT04372173

Brief Summary

The objective of the study was to analyze both the concentration and the activity of the clotting factors, D-dimer levels, as well as fibrinogen concentration in patients who underwent primary total hip arthroplasty due to idiopathic arthrosis. Blood loss is often related to perioperative period and may result in decrease of concentration of coagulation factors, which in turn may lead to increased bleeding. We analyzed data of thirty patients scheduled for primary hip arthroplasty: the activity of clotting factors II, VIII, X, as well as fibrinogen concentration in the following time points: (i) before surgery, (ii) six hours after the procedure, and (iii) two, (iv) four, and (v) six days after the operation. All laboratory tests were performed using automatic analyzer. At the same time intervals, an immunoenzymatic assay was used to determine D-dimer levels.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Feb 2018

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, 2018

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2018

Completed
1.8 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 31, 2020

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

April 14, 2020

Completed
17 days until next milestone

First Posted

Study publicly available on registry

May 1, 2020

Completed
Last Updated

May 1, 2020

Status Verified

April 1, 2020

Enrollment Period

3 months

First QC Date

April 14, 2020

Last Update Submit

April 29, 2020

Conditions

Keywords

total hip arthroplastycoagulation factorsvenous thromboembolism

Outcome Measures

Primary Outcomes (5)

  • Changes of serum fibrinogen

    Serum fibrinogen concentration will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operation

    This measure will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operation

  • Changes of coagulation factor II

    Activity of the coagulation factor II will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operation

    This measure will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operation

  • Changes of coagulation factor VIII

    Activity of the coagulation factor VIII will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operation

    This measure will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operationixth day after the operation

  • Changes of coagulation factor X

    Activity of the coagulation factor X will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operation

    This measure will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operation

  • Changes of D-dimer

    Blood concentration of the D-dimer will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operation

    This measure will be measured (1) before surgery, (2) six hours after the procedure; (3) second, (4) fourth, and (5) sixth day after the operation

Interventions

Blood samples were taken before surgery, 6 hours, two, four, and six days after the procedure. Venous blood samples were taken from peripheral veins. All analyzed parameters (fibrinogen, factor II, factor VIII, factor X, D-dimer) were determined using an ACL TOP 500 CTS automated coagulation analyzer. All patients were operated on by a single surgical team, with cementless hip replacements implanted, and without tranexamic acid administered in the perioperative period. All patients underwent venous thromboembolic complications prophylaxis. The following data were collected: age, body mass index, gender, perioperative risk assessment scale according to the American Society of Anesthesiologists score, blood transfusions, hemoglobin levels before surgery and two days post-surgery, instances of thromboembolic complications. Because of the observational nature of this study no changes in the treatment of patients were made.

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

There were 12 men and 18 women in the study group. Mean age: 67 years. Mean body mass index: 26. Mean ASA score: II.

You may qualify if:

  • patients qualified for primary hip arthroplasty for idiopathic osteoarthritis

You may not qualify if:

  • hip osteoarthritis because of non-idiopathic etiology
  • history of venous thromboembolism or arterial embolism
  • anticoagulation treatment,
  • coagulopathy
  • infection, and
  • renal failure defined as a creatinine clearance below 50 ml/minute.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Anesthesiology and Intensive Therapy

Warsaw, 04-141, Poland

Location

MeSH Terms

Conditions

Venous Thromboembolism

Condition Hierarchy (Ancestors)

ThromboembolismEmbolism and ThrombosisVascular DiseasesCardiovascular Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, PhD, Adjunct Professor

Study Record Dates

First Submitted

April 14, 2020

First Posted

May 1, 2020

Study Start

February 1, 2018

Primary Completion

April 30, 2018

Study Completion

January 31, 2020

Last Updated

May 1, 2020

Record last verified: 2020-04

Locations