Serum Phosphatemia Predictive Marker for AKI Diagnosis After Cardiac Surgery (PhosphoIRA)

September 29, 2017 updated by: University Hospital, Montpellier

Predictive Interest of Serum Phosphorus Level in the Early Diagnosis of Acute Renal Insufficiency in Post-operative Immediate at Patients Having Benefited From a Cardiac Surgery.

Cardiac surgery associated acute kidney injury is an independent factor of morbidity and mortality . Despite its delayed elevation, serum creatinine (Cr) remains the goal standard to diagnose AKI. Hyperphosphatemia is well-know in case of AKI because of its excretion decrease. Moreover, serum phosphorus (Ph) is daily measure d after cardiac surgery since its variation may lead to cardiac dysfunction. In case of AKI, Ph may reflect the decrease of renal function in this context. Consequently, the purpose of this study is to evaluate the predictibility of Ph to detect both AKI induction and in a second time, renal recovery.

Study Overview

Detailed Description

It is a one-year prospective diagnostic validation study included all patients > 18 years-odl admitted in our center after cardiac surgery. AKI is define according to KDIGO criteria and classified in the groups of severity according to the Cr elevation and the need of renal replacement therapy. Serum Cr and Ph are measured at baseline before surgery , at ICU admission, every 12 hours until ICU discharge and every 24 hours until hospital discharge. To evaluate the predictability of Of Ph to diagnose AKI, the postoperative Ph percentage of maximal elevation (%EPh) will be calculated. Then the diagnostic performance of %EPh wil be assessed by calculating the areas under the Receiver Operating Characteristic Curve (AUC) to determine an optimal threshold with sensibility, specificity, positive predictive value and negative predictive value.

Study Type

Interventional

Enrollment (Actual)

264

Phase

  • Not Applicable

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

      • Montpellier, France, 34295
        • Hopital Arnaud de Villeneuve

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

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • All the patients who are more than 18 years having cardiac surgery and having benefited from a dosage of serum phosphorus level and serum creatinine during all the duration of the hospitalisation

Exclusion Criteria:

  • Chronic renal insufficiency with a glomerular filtration rate = 15ml / min / 1.73m2
  • Chronic Renal insufficiency dialysed
  • History of single kidney or nephrectomy
  • Vulnerable people according to the article L1121-6 of the public health Code
  • Protected adult or in the incapacity to give his consent according to the article L1121-8 of the public health Code
  • The patient present formalizes his opposition for the continuation of the study
  • Pregnant or breast-feeding Women according to the article L1121-5 of the Public health Code

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

  • Primary Purpose: SUPPORTIVE_CARE
  • Allocation: NA
  • Interventional Model: SINGLE_GROUP
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Patients having cardiac surgery
Cohort of patients who are more than 18 years having cardiac surgery and having benefited from a dosage of serum phosphorus level and serum creatinine during all the duration of the hospitalisation
Cohort of patients who are more than 18 years having cardiac surgery and having benefited from a dosage of serum phosphorus level and serum creatinine during all the duration of the hospitalisation

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Dosage of phosphorus
Time Frame: 48 hour after cardiac surgery
Kinetic phosphorus during acute renal failure in postoperative cardiac surgery
48 hour after cardiac surgery

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Marine SAOUR, MD, University Hospital, Montpellier

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

October 1, 2015

Primary Completion (Actual)

April 1, 2016

Study Completion (Actual)

July 1, 2016

Study Registration Dates

First Submitted

August 16, 2016

First Submitted That Met QC Criteria

September 8, 2016

First Posted (Estimate)

September 14, 2016

Study Record Updates

Last Update Posted (Actual)

October 3, 2017

Last Update Submitted That Met QC Criteria

September 29, 2017

Last Verified

June 1, 2015

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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.

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