Cerebral small vessel disease and its relationship with all-cause mortality risk: Results from the Amsterdam Ageing cohort

Abstract

Introduction

Cerebral Small-Vessel Disease (CSVD) is a complex condition affecting the brain's vascular network, linked to cognitive and physical decline, cerebrovascular disease, and death. This study assesses the relationship between CSVD (composite and individual features) and all-cause mortality in a large cohort of geriatric outpatients.

Methods

Data from 1305 geriatric outpatients (mean age 78 ± 7; 51 % female) in the Amsterdam Ageing cohort were analysed. CSVD presence was based on brain imaging (MRI or CT), defined by a Fazekas score ≥ 2, presence of ≥1 lacunes, or (in MRI) ≥ 3 microbleeds. Mortality data (February 2016 - January 2024) was sourced from the Dutch Municipality Register. The relationship between CSVD and all-cause mortality was evaluated using a Cox proportional-hazards model, adjusting for key confounders.

Results

At baseline, 835 (64 %) of the 1305 patients had CSVD. During a median follow-up of 3.1 years (IQR 1.6–4.6 years), all-cause mortality was 40 % (333 patients) in the CSVD group and 26 % (121 patients) in the non-CSVD group, corresponding with incidence rates of 137 and 78 per 1000 patient-years, respectively. The age- and sex-adjusted hazard ratio for mortality in the CSVD group was 1.6 (95 % CI: 1.3–2.0). This association remained significant after adjusting for cardiovascular disease and its risk factors, physical function (gait speed), and cognitive function (MMSE).

Conclusion

Radiographic CSVD presence is prevalent and its integration into daily care is important as it is independently linked to increased all-cause mortality in geriatric outpatients.