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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04058496
Other study ID # Wnt-study
Secondary ID
Status Completed
Phase
First received
Last updated
Start date November 1, 2018
Est. completion date April 1, 2022

Study information

Verified date July 2022
Source University of Zurich
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

Cardiac surgery saves lives when patients suffer from cardiac disease. Local inflammation is important for tissue repair and wound healing after such an operation. Inflammation starts already when the patient is treated in the intensive care unit. When inflammatory proteins (cytokines) are released into the circulation, they cause also a systemic inflammation, which alerts the immune system of the body and activates defence mechanisms (=adaptive response). In some patients, systemic inflammation is out of control thereby causing organ dysfunctions, shock, and in the most severe cases even death (=maladaptive response). The aim of this study is to investigate the early phase of inflammation after the operation. Repeated blood samples will be taken of patients undergoing cardiac surgery to describe the patterns and dynamics of inflammation proteins. A better understanding of these mechanisms will potentially lead to improved treatment of patients after cardiac surgery.


Description:

The aim of this project is to understand early inflammation mechanisms after cardiac surgery. Therefore, repeated blood samples of patients undergoing cardiac surgery will be taken. Patients are selected after "open" cardiac surgery (via sternotomy), when when they require postoperative care in the cardiovascular intensive care unit. The blood samples will be analysed in collaboration with the Inflammation Research Unit of the Department of Internal Medicine at the University Hospital Zurich.


Recruitment information / eligibility

Status Completed
Enrollment 64
Est. completion date April 1, 2022
Est. primary completion date April 1, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Cardiac surgery via sternotomy - Coronary-bypass bypass surgery with or without valve surgery - Postoperative hospitalisation in the cardio-surgical ICU - Available informed consent Exclusion Criteria: - Preoperative infections (e.g. endocarditis) - Preoperative use of steroids or other immunosuppression

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Blood sampling
Five Timepoints: baseline (pre-operative), ICU admission, 4 hours after ICU admission, 8 hours after ICU admission, 48 hours after ICU admission

Locations

Country Name City State
Switzerland University Hospital Zürich

Sponsors (2)

Lead Sponsor Collaborator
Alain Rudiger University of Zurich

Country where clinical trial is conducted

Switzerland, 

References & Publications (2)

Hauffe T, Krüger B, Bettex D, Rudiger A. Shock Management for Cardio-surgical ICU Patients - The Golden Hours. Card Fail Rev. 2015 Oct;1(2):75-82. doi: 10.15420/cfr.2015.1.2.75. — View Citation

Hauffe T, Krüger B, Bettex D, Rudiger A. Shock Management for Cardio-surgical Intensive Care Unit Patient: The Silver Days. Card Fail Rev. 2016 May;2(1):56-62. doi: 10.15420/cfr.2015:27:2. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Plasma concentration of Wnt5a (ng/ml) Measured by a commercially available ELISA Up to 48 hours after ICU admission
Primary Plasma concentration of sFRP1 (ng/ml) Measured by a commercially available ELISA Up to 48 hours after ICU admission
Primary Plasma concentration of sFRP5 (ng/ml) Measured by a commercially available ELISA Up to 48 hours after ICU admission
Primary Plasma concentration of WIF-1 (pg/ml) Measured by a commercially available ELISA Up to 48 hours after ICU admission
Secondary Daily fluid balance (ml) Routine parameter taken from charts Up to 48 hours after ICU admission
Secondary Occurrence of complications (yes/no): composite endpoint of hemodynamic instability (defined as norepinephrine concentration = or > 0.1mcg/kg/min), delirium (defined as ICDSC score = or > 4), infections Routine parameter taken from charts Up to 7 days after ICU admission
Secondary Length of ICU stay (days) Routine parameter taken from charts Up to 4 weeks
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