Validation of Hematological Indices

November 20, 2024 updated by: Petrovsky National Research Centre of Surgery

Validation of Hematological Indices as Prognostic Markers of Inflammatory Complications and Multiple Organ Dysfunction in Cardiac Surgery Patients.

The hypothesis of the study is that hematological indices (neutrophil to lymphocyte ratio, platelet to lymphocyte ratio and systemic index of inflammation) may be predictors of infectious complications and multiple organ dysfunction in patients after cardiac surgery.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The hematological index validation study is a single-center interventional prospective study. The aim of the study: to determine the average and threshold values of hematological indices in patients with cardiac surgery before surgery and in the early postoperative period; to determine the levels of hematological indices that indicate an unfavorable course of the postoperative period and may be predictors of infection or multiple organ dysfunction. The study will include 200 patients who are shown cardiac surgery. Blood samples will be collected before the study at three stages: before the operation, on the first day after the operation and on the third day after the operation. Based on the hematological indices studied (NLR, PLR, SII), other biomarkers often used in clinical practice (presepsin, procalcitonin, interleukins, etc.) will also be determined. Each patient will be monitored throughout the perioperative period until the patient is discharged from the hospital by the study participants, in the future all records from the medical history will also be analyzed., including data from instrumental and laboratory studies, consultations of specialists. Based on these data, patients will be divided into groups depending on the presence of complications and their nature. Data concerning demographic indicators, the levels of biomarkers studied and the course of postoperative will be stored in the Exel program. Statistical analysis is planned to be carried out in the IBM SPSS Statistics program. For each quantitative indicator, the nature of the distribution will be determined using the Kolmogorov-Smirnov criterion. All quantitative data with a normal distribution will be presented in the form of mean and standard deviation; with a distribution other than normal - in the form of a median (Q2) and an interquartile span (Q1; Q3). Parametric and nonparametric criteria will be used to assess the differences between the samples, depending on the nature of the distribution. It is planned to complete the correlation analysis performed; assessment of the influence of independent variables on dependent, encoded binary, using logistic regression; construction of ROC curves. It is planned to calculate the odds ratio (OR), 95% confidence interval (CI) and the significance of the influence of p. In all cases, the results of statistical analysis are considered significant at p < 0.05.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
200

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Russian Federation
      • Moscow, Russian Federation, 119991
        • Recruiting
        • Petrovsky National Reasearch Centre of Surgery
        • Contact:
        • Contact:

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • age from 18 to 80 years
  • cardiac surgery
  • operation in the conditions of cardiopulmonary bypass
  • availability of voluntary informed consent of the patient to participate in the study

Exclusion Criteria:

  • refusal of the patient from the study
  • transfer of the patient to another medical institution

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: Diagnostic
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Control Group
A group of patients whose postoperative period proceeded without complications, in connection with which they were transferred to the specialized department within 1-2 days.
Diagnostic test: Determination of the level of the studied biomarkers
Determination of the level of hematological indices based on a general blood test; Determination of the levels of the following biomarkers: isolation of neutrophils from the blood using the gradient centrifugation method; assessment using enzyme immunoassay (ELISA) of the content of neutrophil elastase in the supernatant; myeloperoxidase, ELISA; lactoferrin, ELISA; interleukin -1ß,17,10,6, ELISA; presepsin, ELISA; endothelin, ELISA; lipopolysaccharide, LAL test; lipopolysaccharide binding protein, ELISA; NETs release, immunofluorescence method; the number of neutrophils expressing PDL-1, flow cytofluorimetry method; procalcitonin in human plasma and serum, VIDAS B.R.A.H.M.S. PCT; ferritin, reagent for determination (FERRITIN); lactate dehydrogenase, reagent for determination of QSR6128;Endotoxin Activity Assay, chemiluminescent immunodiagnostics.
Experimental: Group of patients with complications
Patients who had postoperative complications: pneumonia, wound infection, sepsis, multiple organ dysfunction.
Diagnostic test: Determination of the level of the studied biomarkers
Determination of the level of hematological indices based on a general blood test; Determination of the levels of the following biomarkers: isolation of neutrophils from the blood using the gradient centrifugation method; assessment using enzyme immunoassay (ELISA) of the content of neutrophil elastase in the supernatant; myeloperoxidase, ELISA; lactoferrin, ELISA; interleukin -1ß,17,10,6, ELISA; presepsin, ELISA; endothelin, ELISA; lipopolysaccharide, LAL test; lipopolysaccharide binding protein, ELISA; NETs release, immunofluorescence method; the number of neutrophils expressing PDL-1, flow cytofluorimetry method; procalcitonin in human plasma and serum, VIDAS B.R.A.H.M.S. PCT; ferritin, reagent for determination (FERRITIN); lactate dehydrogenase, reagent for determination of QSR6128;Endotoxin Activity Assay, chemiluminescent immunodiagnostics.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number of patients with onset of complications of any type in the postoperative period
Time Frame: Up to 12 weeks
Recording by the attending physician of the occurrence of a complication
Up to 12 weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Changes in the levels of other biomarkers often used in clinical practice
Time Frame: Up to 1 week
neutrophil elastase; myeloperoxidase; lactoferrin; interleukins -1β,17,10,6; presepsin; endothelin; lipopolysaccharide; lipopolysaccharide binding protein; procalcitonin; lactoferrin; interleukins -1β,17,10,6; presepsin; endothelin; lipopolysaccharide; lipopolysaccharide binding protein; procalcitonin; ferritin ; lactate dehydrogenase, tumor necrosis factor - alpha; Endotoxin Activity Assay
Up to 1 week
Number of patients with nosocomial pneumonia
Time Frame: Up to 12 weeks
In accordance with national clinical guidelines, the diagnosis of pneumonia was made with the appearance of fresh focal infiltrative changes in the lungs according to X-ray examination data in combination with two or more clinical and laboratory signs (acute fever 38,0 ° C and higher; cough with sputum; physical signs - focus of crepitation/small bubbly wheezing, bronchial respiration, shortening of percussion sound; leukocytosis > 10 x 109 /l and/or rod shift > 10%).
Up to 12 weeks
Number of patients with wound infection
Time Frame: Up to 12 weeks
The diagnosis of wound infection is established jointly with surgeons on the basis of examination of the postoperative wound during dressing and bacteriological examination of the discharge from the wound.
Up to 12 weeks
Number of patients with multiple organ dysfunction
Time Frame: Up to 12 weeks
With the dysfunction of two or more functional systems (cardiovascular, respiratory, renal-hepatic), the syndrome of multiple organ dysfunction was established
Up to 12 weeks
Number of patients with sepsis
Time Frame: Up to 12 weeks
If there is a focus of infection or suspected infection in combination with multiple organ dysfunction (+ 2 points on the SOFA scale), sepsis is diagnosed.
Up to 12 weeks

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Petrovsky National Research Centre of Surgery

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Maxim A. Babaev, D.M., Petrovsky NRCS

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 19, 2023

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 30, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 5, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 20, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 26, 2024

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 25, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 20, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 6

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings