Effect of Nocturnal Hypertension in Primary Hypertension Patients With Early Renal Dysfunction / 中国循环杂志

ABSTRACT

Objective: To investigate the effect of nocturnal hypertension in essential hypertension (EH) patients with early renal dysfunction. Methods: A total of 182 EH patients were enrolled in this study. According to weather the average night blood pressure (BP) > 120/70 mmHg, the patients were divided into 2 groups Nocturnal hypertension group,n=89 and Control group,n=93. The levels of urine micro albumin (mALB), podocalyxin (PCX) and serum Cyst-C were examined and compared between 2 groups. Results:① For BP the average systolic and diastolic BP in Nocturnal hypertension group were higher than those in Control group as SBP (138.05 ± 6.33) mmHg vs (102.51 ± 8.76) mmHg, DBP (84.11 ± 6.32) mmHg vs (70.03 ± 4.56) mmHg, P<0.05. ② For renal dysfunction biomarkers several biomarker levels were higher in Nocturnal hypertension group than those in Control group as mALB (13.60 ± 0.69) mg vs (10.04 ± 0.73) mg, PCX (5.35 ± 1.69) ng/ml vs (2.05 ± 0.88) ng/ml and serum Cyst-C (1.35 ± 0.69) mg/L vs (1.02 ± 0.44) mg/L, allP<0.05.③ For correlation study In Nocturnal hypertension group, the PCX level was positively correlated to the levels of mALB (r=0.675,P<0.05), Cyst-C (r=0.734,P<0.05), night BP (r=0.830, P<0.05) and the duration EH (r=0.688,P<0.05). Conclusion: EH patients with nocturnal hypertension have more incidences to suffer from renal dysfunction, the examination of mALB, PCX and Cyst-C are beneifciary for the early diagnosis in relevant patients.