Predicting Acute Kidney Injury After Coronary Artery Bypass Graft

June 14, 2016 updated by: WonHo Kim, Samsung Medical Center

Predicting Acute Kidney Injury After Coronary Artery Bypass Graft : a Simplified Clinical Risk Scoring Model

Acute kidney injury after cardiac surgery is a major complication after cardiac surgery and has been reported to be associated with adverse outcome. There have been many studies reporting risk factor of acute kidney injury after cardiac surgery, but the influence of perioperative variables related to anesthesia and perioperative medication has not been evaluated fully. The investigators attempt to evaluate the influence of perioperative clinical variables including preoperative medication, preoperative albumin level, uric acid concentration, anesthesia technique, use of hydroxyethyl starch, blood glucose level, intraoperative medication, perioperative cardiac function (systolic and diastolic function) and hemodynamic variables during surgery on the incidence of acute kidney injury after coronary artery bypass graft.

Study Overview

Detailed Description

Acute kidney injury (AKI) after cardiac surgery is a major complication after cardiac surgery and has been reported to be associated with adverse outcome. There have been many studies reporting risk factor of acute kidney injury after cardiac surgery, but the influence of perioperative variables related to anesthesia and perioperative medication has not been evaluated fully. The investigators attempt to evaluate the influence of preoperative medication, preoperative albumin level, uric acid concentration, NL ratio, anesthesia technique, use of hydroxyethyl starch, blood glucose level, intraoperative medication, perioperative cardiac function (systolic and diastolic) and hemodynamic variables during surgery on the incidence of acute kidney injury after coronary artery bypass graft. Preoperative and postoperative diastolic dysfunction may be associated with postoperative AKI. In addition, preoperative neutrophil-lymphocyte ratio (NLR) which has been reported to be a marked for systemic inflammation and was associated with prognosis in cardiac patients undergoing coronary artery bypass graft or percutaneous coronary intervention. This preoperative or immediate postoperative NLR might be able to predict AKI after coronary artery bypass surgery.

Study Type

Observational

Enrollment (Actual)

877

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

patients who underwent coronary artery bypass surgery during between 2010 and 2012 in Samsung Medical Center

Description

Inclusion Criteria:

  • patients who underwent coronary artery bypass surgery during between 2010 and 2012 in Samsung Medical Center

Exclusion Criteria:

  • lack of postoperative creatinine or urine output data
  • patients who expired within 24hours after surgery

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Coronary artery bypass surgery
patients who underwent coronary artery bypass surgery between 2010 and 2012 in Samsung Medical Center
coronary artery bypass surgery

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Acute kidney injury diagnosis defined by KDIGO criteria
Time Frame: during 7 days after surgery
Acute kidney injury diagnosis defined by KDIGO criteria (Stage 1, 2, 3) during seven days after surgery
during 7 days after surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Acute kidney injury as defined by AKIN (acute kidney injury network) criteria
Time Frame: within 48 hours after surgery
Acute kidney injury as defined by AKIN (acute kidney injury network) criteria
within 48 hours after surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2014

Primary Completion (Actual)

February 1, 2016

Study Completion (Actual)

February 1, 2016

Study Registration Dates

First Submitted

March 5, 2014

First Submitted That Met QC Criteria

March 6, 2014

First Posted (Estimate)

March 7, 2014

Study Record Updates

Last Update Posted (Estimate)

June 16, 2016

Last Update Submitted That Met QC Criteria

June 14, 2016

Last Verified

June 1, 2016

More Information

Terms related to this study

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Subscribe