Correlation between volume overload, chronic inflammation, and left ventricular dysfunction in chronic kidney disease patients

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Hassan M.O. (Author) Other; Duarte R (Author) FMUP; Dix-Peek T. (Author) Other; Vachiat A. (Author) Other; Naidoo S. (Author) Other; Dickens C. (Author) Other; Grinter S. (Author) Other; Manga P. (Author) Other; Naicker S. (Author) Other

Journal

Title: Clinical Nephrology

Vol. 86

Pages: 131-135

ISSN: 0301-0430

Publisher: Dustri-Verlag Dr. Karl Feistle

Indexing

Scopus - 34 Citations

Other information

Authenticus ID: P-010-SVV

DOI: 10.5414/cnp86s127

Abstract (EN): Background: Fluid overload is common in chronic kidney disease (CKD) patients, potentially driving chronic inflammation and left ventricular dysfunction. We investigated the association between volume overload, chronic inflammation, and left ventricular dysfunction across subgroups of CKD patients. Methods: The study included 160 participants, comprising peritoneal dialysis (PD), hemodialysis (HD), stage-3 CKD patients, and age- and sex-matched controls (40 in each group). Fluid status was assessed using a body composition monitor (BCM); serum endotoxin, lipopolysaccharide binding protein (LBP), C-reactive protein (CRP). and interleukin-6 (IL-6) levels were measured as markers of inflammation. Echocardiography was done to assess left ventricular dimension and function. Results: Endotoxemia and volume overload were common across the spectrum of CKD patients and were aggravated by worsening kidney function. Among HD cohorts, postdialysis endotoxemia was increased among patients with dialysis-induced hemodynamic instability and was also closely related to ultrafiltration volume. Endotoxin, IL-6, CRP, and LBP levels were elevated in patients with volume overload compared to euvolemic patients (p < 0.05). Patients with elevated circulating endotoxemia had higher left ventricular mass index (LVMI) compared to patients with lower endotoxin levels. Fluid overload correlated with endotoxin levels, IL-6, and LVMI; while LVMI correlated weakly with LBP and CRP. Conclusion: CKD patients typically presented with significant endotoxemia and overt volume overload, which may contribute significantly to chronic low-grade inflammation and left ventricular dysfunction. An additive contribution from hemodialysis treatment may strongly enhance the severity of endotoxemia in HD patients.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4