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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: BACKGROUND, METHODS, RESULTS. Meshes: Aged, Aged, 80 and over, Aging, Arrhythmias, Cardiac, Autonomic Nervous System Diseases, Brain Diseases, Case-Control Studies, Causality, Cognition Disorders, Cohort Studies, Comorbidity, Electrocardiography, Ambulatory, Female, Follow-Up Studies, Geriatric Assessment, Heart Conduction System, Heart Rate, Humans, Incidence, Logistic Models, Magnetic Resonance Imaging, Male, Middle Aged, Multivariate Analysis, Nerve Fibers, Myelinated, Probability, Risk Assessment, Severity of Illness Index, Statistics, Nonparametric.
user
Is cardiac autonomic dysfunction associated with white matter lesions in patients with mild cognitive impairment? Context: Cardiac autonomic dysfunction has been associated with cognitive impairment, but the underlying pathogenesis is complex and cerebral white matter lesions (WMLs) might be implicated. Time and frequency heart rate variability (HRV) and visual rating of WMLs were carried out in 42 patients with mild cognitive impairment. After adjustment for relevant demographic and clinical characteristics, including left ventricular mass, reduced HRV indices of parasympathetic (root mean square of successive difference of RR intervals, RMSSD) and sympathetic modulation (low-frequency [LF] power) were associated with increased WML score (RMSSD: B -0.30, 95% CI -0.52 to -0.08, p = .01; LF: B -0.24, 95% CI -0.46 to -0.02, p = .05). In a multiple-adjusted model, RMSSD was the major independent predictor of WMLs (B -0.35, 95% CI -0.57 to -0.13, p = .002).
assistant
The evidence for an independent association of cardiac autonomic dysfunction with WMLs might suggest its role in the pathogenesis of WMLs. Final Decision: yes