Document Detail


Heart rate variability in advanced chronic kidney disease with or without diabetes: midterm effects of the initiation of chronic haemodialysis therapy.
MedLine Citation:
PMID:  20466659     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Previous studies in different clinical settings have established heart rate variability (HRV) as a significant independent risk factor for higher mortality and cardiac death. The aim of this study was to examine the effect of chronic haemodialysis therapy on time- and frequency-domain parameters of HRV in diabetic and non-diabetic patients with chronic kidney disease (CKD).
METHODS: We studied 25 patients with stage 4 CKD and type 2 diabetes mellitus (CKD4+DM), 25 patients with stage 4 CKD without diabetes (CKD4), 25 patients with type 2 diabetes mellitus (DM) and 25 healthy subjects (HS). The study was performed in two phases. In the first phase, a 24-h Holter electrocardiographic (ECG) monitoring was performed in all subjects. The patients with stage 4 CKD were followed up until they progressed to stage 5, and in the second phase of the study, they underwent a 24-h Holter ECG monitoring after completion of 3 months of conventional haemodialysis treatment.
RESULTS: In the first phase of the study, a reduction in cardiac sympathetic activity in CKD4 patients (significantly lower SDNN, SDANN/5 min, SD and VLF vs. HS) and worse autonomic function in CKD4+DM patients (significantly lower SDNN, SDANN/5 min, SD, VLF and LF/HF) vs. HS, DM and CKD4 was observed. After 3 months of dialysis therapy, the patients with CKD+DM showed a significant improvement only in the time-domain parameter SDANN/5 min, while the time-domain parameters SDNN, SDANN/5 min and SD were improved in CKD patients without diabetes. Frequency-domain parameters of HRV remained unchanged in both groups.
CONCLUSIONS: CKD is associated with worse cardiac autonomic function. Haemodialysis therapy for 3 months improves some indices of HRV, and this effect is more pronounced in non-diabetic subjects. Our findings suggest that the improvement of HRV after the initiation of chronic dialysis therapy can ameliorate clinical outcomes and survival in patients with end-stage renal disease.
Authors:
Maria Mylonopoulou; Nicholas Tentolouris; Stavros Antonopoulos; Sotirios Mikros; Konstantinos Katsaros; Andreas Melidonis; Nikolaos Sevastos; Nikolaos Katsilambros
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Publication Detail:
Type:  Journal Article     Date:  2010-04-26
Journal Detail:
Title:  Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association     Volume:  25     ISSN:  1460-2385     ISO Abbreviation:  Nephrol. Dial. Transplant.     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-21     Completed Date:  2011-02-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8706402     Medline TA:  Nephrol Dial Transplant     Country:  England    
Other Details:
Languages:  eng     Pagination:  3749-54     Citation Subset:  IM    
Affiliation:
Renal Dialysis Unit, Pantokrator Clinic, Athens, Greece. milmagr@yahoo.gr
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Diabetes Mellitus, Type 2 / physiopathology*
Diabetic Nephropathies / physiopathology*
Female
Heart Rate*
Humans
Kidney Failure, Chronic / physiopathology*,  therapy
Male
Middle Aged
Renal Dialysis*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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