Delirium and Heart Failure

December 23, 2025 updated by: Ain Shams University

Accuracy of Different Biomarkers for Predicting Delirium in Older Adults With Heart Failure

Biomarkers such as Systemic Immune-Inflammation Index (SII) and TG/Glucose Ratio (TyG) have shown promise in predicting delirium, reflecting the roles of inflammation and metabolic disturbances in its pathophysiology. This study aims to compare the predictive value of SII and the TyG ratio among other chemical and physiological biomarkers for diagnosing delirium and detecting its severity in older adults with heart failure. These biomarkers reflect different pathophysiological pathways implicated in delirium, including inflammation, cardiovascular stress, and metabolic dysfunction. By evaluating their individual and combined predictive abilities, this research seeks to identify potential tools for early identification of patients at high risk for delirium

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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.

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.
Observational

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.
100

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

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

Yes

Sampling Method

Probability Sample

Study Population

hospitalized older adults with heart failure

Description

Inclusion Criteria:

Heart failure stage C

Exclusion Criteria:

  1. cognitive impairment
  2. Major Neurological Conditions: (e.g., stroke, traumatic brain injury).
  3. Hematological diseases that affect platelet, neutrophil, and lymphocyte counts.
  4. Cardiogenic Shock
  5. Sepsis
  6. Ongoing Treatment with Immunosuppressants, or corticosteroids

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

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
cases
hospitalized older patients with heart failure and delirium
Other: Comprehensive Geriatric Assessment
multidimensional assessment of cognition, physical, function, mood, social status of the participants
Other: the Confusion Assessment Method (CAM test) or CAM-ICU
standardized tool designed to quickly and accurately diagnose delirium by assessing four key features: acute mental change, inattention, and either disorganized thinking or altered consciousness. The original CAM is used for communicative patients on general wards, relying on conversation, while the CAM-ICU is adapted for critically ill, often non-verbal patients in the ICU, using non-verbal tasks and sedation scales. By providing a rapid, reliable method for identifying this often-missed condition, both tools trigger crucial medical interventions, helping to mitigate delirium's serious risks, including longer hospital stays, long-term cognitive decline, and increased mortality.
Other: Delirium Rating Scale - Revised-98
The Delirium Rating Scale-Revised-98 (DRS-R-98) is a standardized, expert-rated clinical tool designed specifically to measure the severity of delirium and help distinguish it from other psychiatric disorders, such as dementia, depression, and schizophrenia. Unlike the CAM/CAM-ICU, which provides a simple "yes/no" diagnosis, the DRS-R-98 quantifies how severe a patient's delirium is at a given point in time and tracks changes in that severity over the course of the illness
Diagnostic test: blood biomarkers
complete blood count(to obtain systemic inflammatory index) ,triglyceride (TG) and glucose, Liver and kidney function tests and serum electrolytes level
controls
age and gender matched heart failure older patients without delirium
Other: Comprehensive Geriatric Assessment
multidimensional assessment of cognition, physical, function, mood, social status of the participants
Other: the Confusion Assessment Method (CAM test) or CAM-ICU
standardized tool designed to quickly and accurately diagnose delirium by assessing four key features: acute mental change, inattention, and either disorganized thinking or altered consciousness. The original CAM is used for communicative patients on general wards, relying on conversation, while the CAM-ICU is adapted for critically ill, often non-verbal patients in the ICU, using non-verbal tasks and sedation scales. By providing a rapid, reliable method for identifying this often-missed condition, both tools trigger crucial medical interventions, helping to mitigate delirium's serious risks, including longer hospital stays, long-term cognitive decline, and increased mortality.
Diagnostic test: blood biomarkers
complete blood count(to obtain systemic inflammatory index) ,triglyceride (TG) and glucose, Liver and kidney function tests and serum electrolytes level

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
the sensitivity and specificity of different biomarkers of delirium in heart failure older patient
Time Frame: Within 24 hours of hospital admission
assess sensitivity and specificity of the systemic inflammatory index (SII), Rate Pressure Product (RPP), and TG/glucose ratio in predicting delirium
Within 24 hours of hospital admission

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
in hospital morbidity
Time Frame: From enrollment to the hospital discharge about 6 weeks
follow up cohort for possible complications like acute kidney injury, infections, or adverse drug events
From enrollment to the hospital discharge about 6 weeks
In hospital mortality
Time Frame: From enrollment to hospital discharge about 6 weeks
cohort follow up throughout hospital course and mortality recorded
From enrollment to hospital discharge about 6 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.
Ain Shams University

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 (Estimated)

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.
January 20, 2026

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.
July 1, 2026

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.
August 1, 2026

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).
December 4, 2025

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.
December 23, 2025

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.
December 24, 2025

Study Record Updates

Last Update Posted (Actual)

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.
December 24, 2025

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.
December 23, 2025

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, 2025

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.
  • FMASU MD195/2025

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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.

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