Cardiac arrhythmia and hypoglycaemia among individuals with and without diabetes receiving haemodialysis (the CADDY study): a Danish multicentre cohort study

Dea H. Kofod*, Søren Z. Diederichsen, Tobias Bomholt, Mads Andersen, Andreas Andersen, Ebba Mannheimer, Marianne Rix, Ylian S. Liem, Kristine Lindhard, Henrik P. Hansen, Casper Rydahl, Morten Lindhardt, Julie Brøsen, Kristine Schandorff, Theis Lange, Kirsten Nørgaard, Thomas P. Almdal, Jesper H. Svendsen, Bo Feldt-Rasmussen, Mads Hornum

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstract

Aims/hypothesis
We aimed to examine arrhythmias and hypoglycaemia among individuals with and without diabetes who are receiving haemodialysis and to investigate the association between arrhythmias and hypoglycaemia, hyperglycaemia and glycaemic variability.

Methods
This prospective multicentre cohort study included 70 participants on maintenance haemodialysis (35 with diabetes and 35 without diabetes). We employed implantable cardiac monitors for continuous heart rhythm monitoring in combination with periodic use of continuous glucose monitoring. Logistic-regression-type linear mixed models were used to examine associations between arrhythmias and glycaemic measures.

Results
During 18 months of follow-up, clinically significant arrhythmias (bradyarrhythmia and ventricular tachycardia) were identified in 12 (34%) participants with diabetes and 11 (31%) without diabetes. Atrial fibrillation was detected in 13 (37%) participants with diabetes and 14 (40%) without, while other supraventricular tachycardia was detected in seven (20%) and 11 (31%) participants with and without diabetes, respectively. Hypoglycaemia (sensor glucose <3.9 mmol/l) was observed in 27 (77%) participants with diabetes and 32 (91%) without diabetes. Compared with euglycaemia, hypoglycaemia was associated with an increased rate of arrhythmias among participants without diabetes (incidence rate ratio [IRR] 3.13 [95% CI 1.49, 6.55]), while hyperglycaemia (sensor glucose >10.0 mmol/l) was associated with a decreased rate of arrhythmias among participants with diabetes (IRR 0.58 [95% CI 0.37, 0.92]). Glycaemic variability showed no association with arrhythmias regardless of the presence of diabetes.

Conclusions/interpretation
Arrhythmias and hypoglycaemia were common in those undergoing haemodialysis regardless of diabetes status. Our data suggest a temporal relationship between arrhythmias and glucose level in both individuals with and without diabetes.
OriginalsprogEngelsk
TidsskriftDiabetologia
Antal sider14
ISSN0012-186X
DOI
StatusAccepteret/In press - 2025

Bibliografisk note

Funding Information:
Open access funding provided by National Hospital. This study was supported by grants from the Rigshospitalet\u2019s research foundation, the Augustinus Foundation (grant no. 20-1977), Skibsreder Per Henriksen R og Hustrus Fond (grant no. 01-10403), Johnny Weilebys Fond (grant no. 10-100067), Helen og Ejnar Bj\u00F8rnows Fond and Region Zealand\u2019s Health Research Foundation. The CGM equipment was partly sponsored by Dexcom and ILRs were partly sponsored by Medtronic. The study sponsor/funders were not involved in the design of the study; the collection, analysis, and interpretation of data; writing the report; and did not impose any restrictions regarding the publication of the report.

Publisher Copyright:
© The Author(s) 2025.

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