PMID- 38020484 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231201 IS - 2054-3581 (Print) IS - 2054-3581 (Electronic) IS - 2054-3581 (Linking) VI - 10 DP - 2023 TI - Association Between Arterial Stiffness and Measures of Autonomic Dysfunction in People With Chronic Kidney Disease. PG - 20543581231213798 LID - 10.1177/20543581231213798 [doi] LID - 20543581231213798 AB - BACKGROUND: Autonomic nervous system (ANS) dysfunction and vascular stiffness increase cardiovascular risk in people with chronic kidney disease (CKD). Chronic elevations in sympathetic activity can lead to increased arterial stiffness; however, the relationship between these variables is unknown in CKD. OBJECTIVE: To explore the association between measures of autonomic function and arterial stiffness in patients with moderate-to-severe CKD. METHODS: This study was a prespecified secondary analysis of a randomized controlled trial. This included the following measures: 24-hour ambulatory blood pressure (BP), carotid-femoral and carotid-radial pulse wave velocity (PWV), and postexercise heart rate recovery (HRR). We used mixed effect linear regression models with Bayesian information criteria (BIC) to assess the contribution of ANS measurements. RESULTS: Forty-four patients were included in the analysis. Mean carotid-femoral and carotid-radial PWV were 7.12 m/s (95% CI 6.13, 8.12) and 8.51 m/s (7.90, 9.11), respectively. Mean systolic dipping, calculated as percentage change in mean systolic readings from day to night, was 10.0% (95% CI 7.79, 12.18). Systolic dipping was independently associated with carotid-radial PWV, MD -0.09 m/s (95% CI -0.15, -0.02) and had the lowest BIC. CONCLUSIONS: Systolic dipping was associated with carotid-radial PWV in people with moderate-to-severe CKD; however, there was no association with carotid-femoral PWV. Systolic dipping may be a feasible surrogate of ANS function, as the association with carotid-radial PWV was consistent with the minimal clinically important difference (MCID). Future studies are needed to define the relationship between ANS function, arterial stiffness, and CV events over time in people with CKD. CI - (c) The Author(s) 2023. FAU - Davies, Rachelle AU - Davies R AUID- ORCID: 0000-0002-4054-9861 AD - Division of Nephrology, Department of Medicine, University of Alberta, Edmonton, Canada. FAU - Wiebe, Natasha AU - Wiebe N AUID- ORCID: 0000-0002-5613-1582 AD - Division of Nephrology, Department of Medicine, University of Alberta, Edmonton, Canada. FAU - Brotto, Andrew AU - Brotto A AD - Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Canada. FAU - Stickland, Michael K AU - Stickland MK AD - Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Canada. FAU - Braam, Branko AU - Braam B AD - Division of Nephrology, Department of Medicine, University of Alberta, Edmonton, Canada. FAU - Thompson, Stephanie AU - Thompson S AUID- ORCID: 0000-0003-3109-6837 AD - Division of Nephrology, Department of Medicine, University of Alberta, Edmonton, Canada. LA - eng PT - Journal Article DEP - 20231121 PL - England TA - Can J Kidney Health Dis JT - Canadian journal of kidney health and disease JID - 101640242 PMC - PMC10664430 OTO - NOTNLM OT - arterial stiffness OT - autonomic dysfunction OT - blood pressure variability OT - chronic kidney disease OT - systolic dipping COIS- The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. EDAT- 2023/11/29 18:42 MHDA- 2023/11/29 18:43 PMCR- 2023/11/21 CRDT- 2023/11/29 14:44 PHST- 2023/06/01 00:00 [received] PHST- 2023/10/15 00:00 [accepted] PHST- 2023/11/29 18:43 [medline] PHST- 2023/11/29 18:42 [pubmed] PHST- 2023/11/29 14:44 [entrez] PHST- 2023/11/21 00:00 [pmc-release] AID - 10.1177_20543581231213798 [pii] AID - 10.1177/20543581231213798 [doi] PST - epublish SO - Can J Kidney Health Dis. 2023 Nov 21;10:20543581231213798. doi: 10.1177/20543581231213798. eCollection 2023.