Related Experiment Video
Updated: Jul 20, 2025

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
Published on: June 10, 2025
The Association Between Intra-abdominal Pressure and Diuretic Response in Heart Failure.
S Crespo-Aznarez1,2, A Campos-Sáenz de Santamaría1,2, M Sánchez-Marteles1,2
1Internal Medicine Department, Hospital Clínico Universitario "Lozano Blesa", Avda. San Juan Bosco N° 15, 50009, Zaragoza, Spain.
Increased intra-abdominal pressure (IAP) in heart failure patients is linked to poorer kidney function and diuretic response. Persistent IAP elevation indicates worse outcomes and impaired prognosis.
Area of Science:
- Cardiology
- Nephrology
- Critical Care Medicine
Background:
- Diuretic efficacy is crucial for managing decompensated heart failure (HF).
- Intra-abdominal pressure (IAP) is increasingly recognized as a factor in cardiorenal syndrome.
- Understanding the IAP-diuretic response relationship can optimize HF management.
Purpose of the Study:
- To review the association between intra-abdominal pressure (IAP) and diuretic response in heart failure (HF) patients.
- To explore IAP's role in cardiorenal syndrome and guiding diuretic therapy during hospitalization.
Main Methods:
- Literature review analyzing studies on IAP, diuretic response, and HF.
- Examination of correlations between IAP levels, renal function, and clinical outcomes in HF patients.
Main Results:
- Elevated IAP correlates with worsening renal function (WRF) in advanced HF.
- Persistent IAP increase after 72 hours of diuretics predicts poor response, high congestion, and worse prognosis.
- Higher IAP is linked to impaired renal function and reduced diuretic efficacy in HF.
Conclusions:
- Increased IAP is associated with adverse outcomes in HF patients.
- Further research is needed to clarify IAP's role in congestive nephropathy and its utility in guiding diuretic therapy for acute decompensations.
Related Concept Videos
Heart Failure Drugs: Diuretics
Antihypertensive Drugs: Action of Diuretics
Heart Failure V: Medical Management
Heart Failure II: Pathophysiology
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
Antihypertensive Drugs: Thiazide-Class Diuretics

