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The correlation between cognitive impairment and ambulatory blood pressure in patients with cerebral small vessel disease.
OBJECTIVE: The present study was aimed to analyze the correlation between cognitive impairment and ambulatory blood pressure in patients with cerebral small vessel disease (CSVD).
PATIENTS AND METHODS: 108 patients with CSVD received in our hospital were selected. Assessment of cognitive impairment was by the Montreal Cognitive Assessment (MoCA). 39 cases were established as the impairment group and 69 cases were established as the normal group. 24 h ambulatory blood pressure was monitored, and changes in ambulatory blood pressure parameters between the two groups were compared. Also, the correlation between blood pressure parameters and MoCA score were analyzed.
RESULTS: Comparisons of ambulatory systolic blood pressure, ambulatory pulse pressure and the ratios of night blood pressure reduction of patients in both groups showed statistical differences (p < 0.05), while the changes in diastolic blood pressure showed no statistical differences (p > 0.05). The comparison of the blood pressure curves in both groups showed statistical differences (p < 0.05). The ambulatory systolic blood pressure, ambulatory pulse pressure and the ratio of night blood pressure reduction of patients with CSVD showed prominently negative correlations with MoCA score (p < 0.05).
CONCLUSIONS: Cognitive impairment and the ambulatory blood pressure of patients with CSVD are intimately correlated. The rise of ambulatory systolic blood pressure, pulse pressure, and the decline of blood pressure may represent risk factors for cognitive impairment in patients with CSVD. Improving blood pressure management will reduce the incidence of cognitive impairment caused by CSVD.
PATIENTS AND METHODS: 108 patients with CSVD received in our hospital were selected. Assessment of cognitive impairment was by the Montreal Cognitive Assessment (MoCA). 39 cases were established as the impairment group and 69 cases were established as the normal group. 24 h ambulatory blood pressure was monitored, and changes in ambulatory blood pressure parameters between the two groups were compared. Also, the correlation between blood pressure parameters and MoCA score were analyzed.
RESULTS: Comparisons of ambulatory systolic blood pressure, ambulatory pulse pressure and the ratios of night blood pressure reduction of patients in both groups showed statistical differences (p < 0.05), while the changes in diastolic blood pressure showed no statistical differences (p > 0.05). The comparison of the blood pressure curves in both groups showed statistical differences (p < 0.05). The ambulatory systolic blood pressure, ambulatory pulse pressure and the ratio of night blood pressure reduction of patients with CSVD showed prominently negative correlations with MoCA score (p < 0.05).
CONCLUSIONS: Cognitive impairment and the ambulatory blood pressure of patients with CSVD are intimately correlated. The rise of ambulatory systolic blood pressure, pulse pressure, and the decline of blood pressure may represent risk factors for cognitive impairment in patients with CSVD. Improving blood pressure management will reduce the incidence of cognitive impairment caused by CSVD.
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