Clinical trial NCT05586828: A Single-center Retrospective Cohort Study to Explore the Prognostic Significance of CONUT in Elderly CAD Patients With HFpEFand Compare CONUT With Other Objective Nutritional Indices.
Official title: A Single-center Retrospective Cohort Study to Explore the Prognostic Significance of CONUT in Elderly With HFpEF and Compare Controlling Nutritional Status Score With Other Objective Nutritional Indices. The Primary Endpoint of This Study Was Readmission Due to HF and All-cause Mortality in 1 Year After Hospitalization.
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Heart Failure With Preserved Ejection Fraction
Malnutrition
Aged
Prognosis
Lead sponsor: Beijing Tongren Hospital
Sponsor class: OTHER
First posted: 2022-10-19
Enrollment: 780
Sex: ALL
Minimum age (years): 65
Maximum age (years): 99
Standard ages: OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: RETROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: elderly HFpEF Ⅱ-Ⅳ patients with coronary heart disease hospitalized in the Department of Geriatrics Medical Department of Beijing Tongren Hospital affiliated to Capital Medical University from January 1, 2017 to December 31, 2019 were selected

Brief summary: HF is an advanced or terminal stage of various heart diseases, with high rehospitalization and mortality rates. In HF patients, undernutrition is not uncommon and represents one of the most significant determinants of poor clinical outcomes. Therefore, nutritional management is of paramount importance for patients with HF.The basic method of nutritional management is to effectively identify the nutritional status of patients with heart failure, especially in elderly patients with heart failure who are not easy to find in the early stage. Limited data are available regarding the association between CONUT score and prognosis in elder patients with HFpEF, despite its easy availability in routine blood chemistry. Therefore, we aimed to evaluate the prognostic significance of CONUT score and to compare it with other well-established nutritional indices in HFpEF, a common HF phenotype in the elderly population with coronary artery disease.

This was a single-center retrospective cohort study which were approved by the Clinical Research Ethics Committee of our hospital (TRECKY2021-185). Written informed consent was obtained from all patients.

Participants were accorded with diagnostic criteria of CAD and HFpEF excluding rheumatic heart disease, congenital heart disease, acute myocardial infarction, hemodialysis or hemofiltration, tumour activity, urgent surgery, death during hospitalization, HF of unknown reasons, New York Heart Association(NYHA) class1and data deficiency. Demographic characteristics and medical parameters were collected from the electronic medical record system . All enrolled patients were followed-up in an outpatients setting. The primary endpoint of this study was readmission due to heart failure and all-cause mortality in the first year after hospitalization. To explore the prognostic significance of controlling nutritional status score in elderly with ejection fraction preserved heart failure and compare controlling nutritional status score with other objective nutritional indices.All analyses were performed using Statistical Product Service Solutions(SPSS) version 19.0 .


Eligibility criteria: Inclusion Criteria:

1. Elderly patients (≧65years old) were accorded with diagnostic criteria of coronary artery disease, HFpEF and NYHA Ⅱ-Ⅳ
2. Coronary artery disease was defined
3. The diagnosis of HF was made according to the recommendations of the European Society of Cardiology .
4. HFpEF was defined
5. Severity of functional class was based on NYHA scale.

Exclusion Criteria:

1. Rheumatic heart disease
2. congenital heart disease
3. acute myocardial infarction
4. hemodialysis or hemofiltration
5. tumour activity, urgent surgery
6. death during hospitalization
7. HF of unknown reasons
8. NYHA classⅠ
9. data deficiency
10. loss of follow-up

Primary outcomes:
measure: readmission due to heart failure in the first year after hospitalization
timeFrame: up to one year
measure: all-cause mortality in the first year after hospitalization
timeFrame: up to one year
Secondary outcomes:
Other outcomes:
Locations:
city: Beijing
country: China
facility: Beijing Tongren Hospital, Capital Medical University
state: Beijing
Study officials:
affiliation: Beijing Tongren Hospital
name: YING CHEN, Chief Physician
role: STUDY_CHAIR
affiliation: Beijing Tongren Hospital
name: HUI ZHENG, M.D.
role: PRINCIPAL_INVESTIGATOR
References: