Kidney & blood pressure research · 2025
Exploring the Link between Hypertension and Cerebral White Matter Changes in Chronic Kidney Disease.
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Chen Kung-Chao, Shen Feng-Ching, Chen Wen-Ching, Lin Hsiu-Fen, Huang Teng-Hui, Lin Ming-Yen, Wang Shu-Li, Gloria Yang Fan-Pei, Kuo Mei-Chuan, Chiu Yi-Wen, Hwang Shang-Jyh, Wu Ping-Hsun, Lin Yi-Ting
Аннотация
BACKGROUND: Patients diagnosed with chronic kidney disease (CKD) are at a higher risk of encephalopathy, a condition exacerbated by the presence of various chronic diseases. Hypertension is a significant risk factor for brain damage in the general population but is limitedly discussed in patients with CKD. Brain magnetic resonance imaging (MRI) is an excellent tool for evaluating cerebral white matter lesions. Most previous studies showed the association between hypertension and cerebral white matter lesions in the general population but were less focused on CKD patients. Therefore, the present study aims to investigate the effect of hypertension on the cerebral white matter lesions of brain MRI in patients with CKD.
METHODS: In this retrospective study, we enrolled 1,749 CKD patients who underwent brain MRIs to evaluate their brain lesions in Kaohsiung Medical University Hospital. The cerebral white matter hyperintensities (WMHs) on MRI were evaluated according to the Fazekas scale, including separate periventricular and deep white matter lesions from grade 0 to grade 3. The multivariable ordinal regression model was analyzed to determine the independent association between hypertension or blood pressure and cerebral WMHs with adjustment of controlling age, sex, education, comorbidities (hyperlipidemia, cerebrovascular disease, chronic heart failure), laboratory data (hemoglobin, albumin, triglyceride, estimated glomerular filtration rate).
RESULTS: Hypertension was associated with the Fazekas scale of periventricular lesions in multivariable-adjusted ordinal regression analysis (odds ratio [OR] 1.63, 95% confidence interval [CI] 1.15-2.30) after full adjustment. However, the hypertension comorbidities did not associate with the Fazekas scale of deep white matter lesions in the fully adjusted model (OR 1.24, 95% CI [0.89-1.75]). A positive association between blood pressure (per 10 mm Hg increase) and the Fazekas scale was mainly on diastolic blood pressure rather than systolic blood pressure.
CONCLUSIONS: In CKD patients, hypertension was associated with brain white matter damage; in particular, Fazekas scale of periventricular lesions. Further study is needed to evaluate adequate blood pressure control to decrease the risk of brain damage in CKD patients.
METHODS: In this retrospective study, we enrolled 1,749 CKD patients who underwent brain MRIs to evaluate their brain lesions in Kaohsiung Medical University Hospital. The cerebral white matter hyperintensities (WMHs) on MRI were evaluated according to the Fazekas scale, including separate periventricular and deep white matter lesions from grade 0 to grade 3. The multivariable ordinal regression model was analyzed to determine the independent association between hypertension or blood pressure and cerebral WMHs with adjustment of controlling age, sex, education, comorbidities (hyperlipidemia, cerebrovascular disease, chronic heart failure), laboratory data (hemoglobin, albumin, triglyceride, estimated glomerular filtration rate).
RESULTS: Hypertension was associated with the Fazekas scale of periventricular lesions in multivariable-adjusted ordinal regression analysis (odds ratio [OR] 1.63, 95% confidence interval [CI] 1.15-2.30) after full adjustment. However, the hypertension comorbidities did not associate with the Fazekas scale of deep white matter lesions in the fully adjusted model (OR 1.24, 95% CI [0.89-1.75]). A positive association between blood pressure (per 10 mm Hg increase) and the Fazekas scale was mainly on diastolic blood pressure rather than systolic blood pressure.
CONCLUSIONS: In CKD patients, hypertension was associated with brain white matter damage; in particular, Fazekas scale of periventricular lesions. Further study is needed to evaluate adequate blood pressure control to decrease the risk of brain damage in CKD patients.