[NT-PROBNP LEVEL IN PATIENTS WITH LIVER CIRRHOSIS: RELATION TO PORTAL HYPERTENSION AND CARDIOVASCULAR CHANGES]

Georgian Med News. 2019 Jul-Aug:(292-293):26-32.
[Article in Russian]

Abstract

Cirrhotic cardiomyopathy (CC) is a frequent complication of liver cirrhosis (LC) and characterised by impaired contractile response to stress, altered diastolic relaxation, and QTc prolongation. Symptoms of CC can be masked by edematous ascitic syndrome, high cardiac output, hyperdynamic circulation and preserved left ventricular (LV) ejection fraction at rest. NT-proBNP is a sensitive marker of heart failure in patients with primary heart disease, but its diagnostic value in CC has not been determined. The aim of the study was to evaluate NT-proBNP levels in patients with LC and estimate its relationship with the severity of the main disease, cardiac and hemodynamic dysfunction. The study involved 90 patients with LC (age 49,9±1,92 years). LC decompensation was associated with an increase of end-systolic, end-diastolic volume (ESV, EDV), left ventricular myocardial index (LVMI), cardiac index (CI), decrease E/A and preserve ejection fraction (EF) at rest. Serum NT-proBNP levels in class A, B and C were 109±26.2, 174±17.6, 358±40.1 pg/ml (p˂0.05). The highest NT-proBNP levels were in patients with refractory ascites, severe esophagus varices, hepatorenal syndrome, hypoalbuminemia (374±49.4, 345±33.9, 467±47.4, 323±32.0 pg/ml), the lowest - in pre-ascitics patients (112±23.4 pg/ml). NT-proBNP was correlated with CTP, MELD, serum albumin, portal vein diameter (r= 0.550, 0.429, -0.334, 0.237, p˂0.05), eGFR, CI, EDV, LVMI, E/A (r= 0.419, 0.401, 0.296, 0.233, 0.325, p˂0.05). Thus, elevated levels of NT-proBNP may be an indicator of cardiac dysfunction in patients with LC.

MeSH terms

  • Biomarkers / blood
  • Heart Diseases / complications*
  • Humans
  • Hypertension, Portal / complications*
  • Liver Cirrhosis / complications
  • Liver Cirrhosis / physiopathology*
  • Natriuretic Peptide, Brain / blood*
  • Peptide Fragments / blood*

Substances

  • Biomarkers
  • Peptide Fragments
  • pro-brain natriuretic peptide (1-76)
  • Natriuretic Peptide, Brain