SUbCONgestion in Heart Failure Registry (SUCONIC)

May 6, 2026 updated by: University of Chile

Description and Analysis of Congestion During Hospitalization for Acute Decompensated Heart Failure

The goal of this observational study is to learn about the decongestion process in heart failure patients. The main question it aims to answer is: What is the behavior of congestion during hospitalization in adult patients with acute heart failure (AHF)? Participants will be evaluated in the decongestion process through clinical, analytical, and ultrasonographic variables, and they will be followed up for one year to assess mortality and rehospitalization rates in this population.

Study Overview

Status

Status

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

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

Heart failure (HF) is a syndrome characterized by the presence of dyspnea, lower extremity edema, orthopnea, jugular venous distention, and pulmonary crackles, among others, secondary to elevated ventricular filling pressures. It is the leading cause of hospitalization in medical services in Chile and worldwide, with the majority of patients being elderly. Decompensation of HF is explained in most cases by fluid overload (congestion) and can be studied through biomarkers, clinical signs, radiographic, and ultrasonographic findings. The Chilean demographic transition makes it necessary to optimize the multiparametric and protocolized management of hospitalized patients.

General Objective: To evaluate and describe the decongestion process, including residual congestion, during hospitalization for heart failure at the Clinical Hospital of the University of Chile (HCUCh).

A prospective observational cohort study will be conducted with all patients hospitalized for heart failure at HCUCh. Clinical, analytical, and ultrasonographic variables, especially those related to congestion assessment, will be recorded. Enrollment will last for one year from institutional authorization, and telephone follow-up will be conducted for one year post-discharge, extendable up to five year.

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 (Actual)

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.
49

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

  • Chile
    • Metropolitan
      • Santiago, Metropolitan, Chile, 8380456
        • Departamento Cardiovascular - Hospital Clínico Universidad de Chile

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

Sampling Method

Non-Probability Sample

Study Population

Patients with heart failure aged 18 years or above that are admitted in emergency room or outpatient clinic for acute decompensation of new or known heart failure, excluding diagnostics that mimics heart failure. Everyone has to be discharge from Hospital Clínico Universidad de Chile.

Description

Inclusion Criteria:

  • Adults diagnosed with decompensated heart failure in the emergency department or cardiology outpatient clinic at the Clinical Hospital of the University of Chile (HCUCh).
  • Profile of warm-wet and cold-wet type heart failure.
  • Spontaneous ventilation with or without non-invasive mechanical support.
  • Desire for participation validated through informed consent.

Exclusion Criteria:

  • Dry-type heart failure profile (warm and cold)
  • Diagnostics that mimics heart failure (valvular heart disease, cardiomyopathies, and others diagnostic different from heart failure).
  • Septic, distributive, or obstructive shock
  • Polytraumatized
  • Severe burns
  • Invasive mechanical ventilation
  • Permanent renal replacement therapy
  • Severe dependence
  • Presence of terminal illness with a prognosis of survival less than one year
  • Presence of traumatic conditions that prevent the use of thoracic ultrasound, such as a flail chest or moderate to severe burn on the left hemithorax.
  • Lack of a support network or contact.
  • Cardiorespiratory arrest
  • Refusal to participate as indicated in the informed consent.
  • Presence of psychological or intellectual disability that prevents expressing the will to participate.

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.
AHF Patients
Admitted Acute Heart Failure Patients
Other: No intervention
No intervention

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
Rehospitalization
Time Frame: One year from discharge
Readmission to hospital for cardiac cause
One year from discharge
All cause mortality
Time Frame: One year after discharge
Death from any cause
One year after discharge

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
Cardiac death
Time Frame: One year after discharge
Death form cardiac cause
One year after discharge

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.
University of Chile

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: Alfredo Parra, MD,PhD, Departamento Cardiovascular - Hospital Clínico Universidad de Chile

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
April 1, 2024

Primary Completion (Actual)

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.
January 1, 2026

Study Completion (Actual)

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.
January 7, 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).
January 29, 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.
January 29, 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.
February 6, 2024

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.
May 11, 2026

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.
May 6, 2026

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.
January 1, 2024

More Information

Terms related to this study

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.
  • 01-2024

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

IPD Plan Description

Use data for compare with other populations in other studies.

Study Data/Documents

  1. Individual Participant Data Set
    Information identifier: aparral
    Information comments: Data registry online system provided by sponsor

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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