Heart Failure, Lung Ultrasound
Conditions
Keywords
subclinical heart failure, B-line, pulmonary congestion, outcome
Brief summary
Background：About 50% of subclinical heart failure (Sub-HF) patients might have residual lung ultrasound B-lines (LUS-BL). Sub-HF is insensitive to widely used imaging examinations, like x-ray or echocardiography, but lung ultrasound (LUS) can sufficiently detect pulmonary congestion in Sub-HF patients. Previous studies showed that residual LUS-BL is associated worse clinical outcome among patients with chronic heart failure. In this trial, we sought to evaluate the impact of LUS-BL guided intensive HF management post discharge in patients with residual LUS-BL on outcome up to 1 year after discharge. Aim: IMP-OUTCOME is a prospective, single-center, observational cohort study, which is designed to investigate whether LUS-BL-guided intensive HF management post discharge might improve the outcome of HF patients with residual B-lines at discharge up to 1 year after discharge. Methods and results: After receiving the standardized treatment of HF according to current guidelines, 320 HF patients with ≥ 3 B-lines (LUS-BL, assessed within 48 hours before discharge) will be divided into the conventional HF management group and the LUS-BL-guided intensive HF management group at 1:1 ratio. LUS-BL-guided intensive HF management group will receive optimized HF medication according to current guidelines and medication will be adjusted according the status of LUS-BL in addition to symptom and physical examination results during the follow-up at 2-month interval. Patient-related clinical data including sex, age, blood chemistry, imaging examination, drug utilization, and so on will be obtained and analyzed. Following discharge from the hospital, patients in the conventional HF management group will receive optimized HF medication according to current guidelines and medication will be adjusted without knowing the status of LU-BL during the follow-up at 2-month interval. LUS-BL will be assessed at 2-month interval post discharge in both groups, results will be transferred to HF nurses, who will decide to present the LUS-BL results to managing cardiologist or envelope the LUS-BL results till study end according to group assignment. Echocardiography examination will be performed at 12 months for all patients and EF, E/e', LA size and systolic pulmonary artery pressure will be assessed. The primary endpoint is the composite of re-hospitalization for worsening HF and all-cause death during follow-up. Secondary endpoints include the change in the Duke Activity Status Index (DASI) and NT-pro BNP, arrythmia and 6-minutes walk distance at each follow up, EF and B-lines changes at final follow up. Safety profile will be noted and analyzed. Primary results will be available by early 2024. Conclusion: This trial will clarify the impact of LUS-BL guided intensive HF management on outcome for discharged patients with residual B-lines up to 1 year after discharge in the era of sodium-glucose cotransporter-2 inhibitors and angiotensin receptor blocker-neprilysin inhibitor.
Interventions
DIAGNOSTIC_TESTlung ultrasound
drug adjustment based on lung ultrasound results
DIAGNOSTIC_TESTLung ultrasound
drug adjustment independent on lung ultrasound results
Sponsors
Xiangtan Central Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
Hospitalized heart failure patients with objective heart failure evidence during or before hospitalization. New York Heart Association (NYHA) class II, III, or IV. Patients with NT-proBNP level of at least 600pg/meal (or ≥400 pg/meal if they had been hospitalized for heart failure within the previous 12 months). Atrial fibrillation or atrial flutter patients with NT-proBNP level of at least 900 pg/ml, regardless of their history of HF hospitalization.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| The primary outcome consisted of readmission for worsening heart failure, or death during follow-up. | The patients will be followed up for 1 year after they were discharged from the hospital. | follow-up by clinical visit |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Change in arrythmia | Baseline, 2, 4, 6, 8, 10 and 12 months post discharge | ECG results will be evaluated and arrythmia will be evaluated |
| Change the Duke Activity Status Index (DASI) score | Baseline, 2, 4, 6, 8, 10 and 12 months post discharge | The scale consists of 12 items covering major daily physical activities such as living, housework, walking, sexual function, and recreation, and patients are judged to be able to complete the activity content by themselves. Each entry has a different score based on the weight it takes to expend on exercise energy, with the scale summing from 0 to 58.2, with higher scores representing better physical activity status. |
| Change in NT-proBNP | Baseline, 2, 4, 6, 8, 10 and 12 months post discharge | pg/ml |
| Change in 6-minute walk distance values (6MWD) | Baseline, 2, 4, 6, 8, 10 and 12 months post discharge | walk distance (meter) |
Other
| Measure | Time frame | Description |
|---|---|---|
| Safety outcome | Baseline, 2, 4, 6, 8, 10 and 12 months post discharge | * number of hospitalisation for hypotension * number of hospitalisation for worsening of renal function * number of hyperkalaemia * number of hypokalaemia * number of worsening of renal function * number of ketoacidosis * number of drug allergy * number of lower limb edema * number of severe liver dysfunction * number of hypoglycemia |
Countries
China
Outcome results
None listed