血清胱抑素C、同型半胱氨酸及尿微量白蛋白在高血压患者肾损害早期评估中的应用价值

The application value of serum cystatin C,homocysteine and urinary microalbumin in early assessment of renal damage in hypertensive patients

目的探讨血清胱抑素C(SCys-C)、同型半胱氨酸(Hcy)及尿微量白蛋白(UmAlb)在高血压患者肾损害早期评估中的应用价值。方法选择2022年9月—2023年9月期间福建中医药大学附属第三人民医院接收的150例高血压患者作为观察组,另选择健康体检者150例为对照组,测定肾小球滤过率(GFR)、SCys-C、Hcy、UmAlb,比较不同血压程度及对照组的各指标水平,比较观察组各指标检测阳性率及诊断符合率,依据GFR值评估肾损害程度,比较不同肾损害程度患者的SCys-C、Hcy、UmAlb水平。结果高血压2级、高血压3级患者SCys-C、Hcy、UmAlb水平高于高血压1级患者(t=5.255、10.976、21.578,P<0.05;t=7.378、18.012、23.708,P<0.05)及对照组患者(t=8.308、19.675、31.891,P<0.05;t=10.661、31.511、21.578,P<0.05),高血压3级患者高于高血压2级患者(t=2.776、12.725、7.779,P<0.05)。观察组肾损害患者SCys-C、Hcy、UmAlb的阳性率79.41%、73.53%、83.82%高于无肾损害患者的阳性率6.10%、4.88%、6.10%(χ^(2)=83.733、76.040、92.613,P<0.05)。观察组中重度肾损害、轻度肾损害患者的SCys-C、Hcy、UmAlb水平高于无损害患者(t=7.567、24.214、30.836,P<0.05;t=5.783、16.054、25.164,P<0.05),中重度肾损害高于轻度肾损害患者(t=2.685、7.179、9.561,P<0.05)。结论高血压分级越高患者的SCys-C、Hcy、UmAlb水平越高,各指标联合检测的阳性率高,而且SCys-C、Hcy、UmAlb水平越高,肾损害程度越严重。

Objective To explore the application value of serum cystatin C(SCys-C),homocysteine(Hcy)and urinary microalbumin(UmAlb)in early assessment of renal damage in hypertensive patients.Methods A total of 150 hypertensive patients admitted to the Third People’s Hospital Affiliated to Fujian University of Traditional Chinese Medicine from September 2022 to September 2023 were selected as the observation group,and 150 healthy individuals were selected as the control group.Glomerular filtration rate(GFR),serum cystatin C(SCys-C),homocysteine(Hcy),and UmAlb were measured,and the levels of various indicators in different blood pressure levels and the control group were compared.The positive rate and diagnostic accuracy of each indicator in the observation group were compared,and the degree of renal damage was evaluated based on GFR values.The levels of SCys-C,Hcy and UmAlb in patients with different degrees of renal damage were compared.Results The levels of SCys-C,Hcy and UmAlb in patients with grade 2 and grade 3 hypertension were significantly higher than those in patients with grade 1 hypertension(t=5.255,10.976,21.578,P<0.05;t=7.378,18.012,23.708,P<0.05),as well as in the control group(t=8.308,19.675,31.891,P<0.05;t=10.661,31.511,21.578,P<0.05),patients with grade 3 hypertension were significantly higher than those with grade 2 hypertension(t=2.776,12.725,7.779,P<0.05).The positive rates of SCys-C,Hcy and UmAlb in patients with renal injury in the observation group were 79.41%,73.53% and 83.82%,which were significantly higher than the positive rates of 6.10%,4.88% and 6.10% in patients without renal injury(χ^(2)=83.733,76.040,92.613,P<0.05).The levels of SCys-C,Hcy and UmAlb in patients with severe and mild kidney damage in the observation group were significantly higher than those in patients without damage(t=7.567,24.214,30.836,P<0.05;t=5.783,16.054,25.164,P<0.05),patients with moderate to severe kidney damage were significantly higher than those with mild kidney damage(t=2.685,7.179,9.561,P<0.05).Conclusions The higher the grading of hypertension,the higher the levels of SCys-C,Hcy and UmAlb in patients,and the higher the positive rate of combined detection of various indicators.Moreover,the higher the levels of SCys-C,Hcy and UmAlb,the more severe the renal damage.