Eosinophil Indices in Patients With Acute Heart Failure

Study Overview
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Brief Summary
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All consecutive patients admitted to the intensive care unit (ICU) with ADHF between January 2017 and December 2021 were enrolled in this retrospective study. All-cause mortality and MACE were assessed with respect to relationships with eosinophil indices, including neutrophil-to-eosinophil ratio (NER), leukocyte-to-eosinophil ratio (LER), eosinophil-to-lymphocyte ratio (ELR), and eosinophil-to-monocyte ratio (EMR).

Detailed Description
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All consecutive patients admitted to the intensive care unit (ICU) with ADHF and reduced EF between January 2017 and December 2021 were enrolled in this retrospective study. HFrEF was defined as having an LVEF of ≤40%. Demographic data were retrieved from patient charts and the institutional digital database. Patients with an LVEF >40%, NYHA Class I and II subjects, those with advanced liver, kidney diseases or malignancies, patients in whom life expectancy was extremely short and patients with autoimmune, allergic, or infectious diseases that affect the eosinophil indices were not included in the study. The study was approved by the local ethics committee. Conventional guidelines had been followed for the in-hospital treatment of all patients with ADHF, including loop diuretics, vasodilators, inotropes/vasopressors [9]. Blood tests including complete blood count, blood urea nitrogen and creatinine, electrolytes, liver enzymes, and NT-pro BNP were ordered upon admission to the ICU. All patients underwent transthoracic echocardiography. LVEF was measured with 2-dimensional echocardiography via the modified Simpson method [10]. Data concerning 6-month all-cause mortality and MACE were retrieved from the institutional digital database. The definition of MACE was the composite of total death and re-hospitalization for HF within 6 months of initial hospitalization. The primary outcome measure of this study was all-cause mortality within the first 6 months of index hospitalization and its relationship with eosinophil indices, including NER, LER, ELR and EMR. The secondary outcome measure of this study was the assessment of MACE within the first 6 months of index hospitalization and its association with eosinophil indices.

Official Title
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Predictive Value of Eosinophil Indices for Major Cardiovascular Events in Patients With Acute Heart Failure

Conditions
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Acute Heart Failure, Reduced Systolic Function

Intervention / Treatment
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* Diagnostic Test: eosinophil and other hematological parameters


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: patients who admitted to the intensive care unit (ICU) with Acute Decompensated Heart Failure and reduced Ejection Fraction (<%40) Exclusion Criteria: Patients with an LVEF >40%, NYHA Class I and II subjects, those with advanced liver, kidney diseases or malignancies, patients in whom life expectancy was extremely short and patients with autoimmune, allergic, or infectious diseases

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 90 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| mortality, MACE (+)<br>patients with all-cause mortality within the first 6 months of index hospitalization and MACE (major adverse cardiovascular events) | Diagnostic Test: eosinophil and other hematological parameters<br> <br> |
| mortality, MACE (-)<br>patients without all-cause mortality within the first 6 months of index hospitalization and MACE (major adverse cardiovascular events) | Diagnostic Test: eosinophil and other hematological parameters<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| mortality | all-cause mortality | within the first 6 months of index hospitalization | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| MACE | major adverse cardiovascular events | within the first 6 months of index hospitalization | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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eosinophil indices, acute heart failure