增強型血流顯像及頻譜多普勒對高尿酸血癥患者眼動脈的血流動力學研究
發(fā)布時間:2019-03-27 18:49
【摘要】:目的:采用增強型血流顯像(eFlow)及頻譜多普勒研究高尿酸血癥患者眼動脈(ophthalmic artery,OA)和視網(wǎng)膜中央動脈(central retinalartery CRA)的內(nèi)徑及血流動力學改變,并探討血流動力學指標和尿酸值的關系,旨在了解高尿酸血癥和外周血管疾病的關系。 方法:選擇確診為高尿酸血癥的患者101名作為實驗組,20名原發(fā)性高血壓患者和30名健康成年人作為對照組。eFlow觀察眼動脈、視網(wǎng)膜中央動脈在眶內(nèi)的走形情況及內(nèi)徑,頻譜多普勒檢測眼動脈及視網(wǎng)膜中央動脈的收縮期峰值血流速度(peak of systolic velocity PSV)、舒張末期血流速度(end of diastolic velocity EDV)、血流阻力指數(shù)(resistanceindex RI)和搏動指數(shù)(pulsatility index PI)。根據(jù)確診高尿酸血癥的年限將實驗組分為≤5年組和>5年組,采用獨立樣本t檢驗比較兩組樣本均數(shù);再根據(jù)有無高血壓分為高尿酸血癥伴高血壓組和不伴高血壓組,,所得數(shù)據(jù)和健康對照組做單因素方差分析,各組間比較采用SNK法,再采用獨立樣本t檢驗比較高尿酸血癥伴高血壓組和原發(fā)性高血壓組的樣本均數(shù);用person,s相關分別分析高尿酸血癥伴高血壓組和高尿酸血癥不伴高血壓組的血流動力學指數(shù)和尿酸值的相關性。 結果:(1)確診高尿酸血癥>5年組眼動脈的RI(0.68±0.09)、PI(1.3±0.4)較≤5年組(RI:0.63±0.09, PI:1.1±0.3)明顯升高(t=3.504,P=0.001;t=3.164,P=0.002),眼動脈的舒張末期血流速度(EDV)>5年組(6.4±3.4) cm/s,較≤5年組(7.5±4.9cm/s)明顯降低(t=1.988,P=0.049);(2)高尿酸血癥伴高血壓組CRA的PSV(11.5±3.5)cm/s,、 EDV(3.7±1.1)cm/s較高尿酸血癥不伴高血壓組[(PSV:(13.5±4.0)cm/s,EDV:(4.1±1.2)cm/s.)明顯降低,RI明顯升高(伴高血壓組:0.88±1.40,不伴高血壓組:0.67±0.08,P<0.05);(3)高尿酸血癥伴高血壓組眼動脈的RI、PI(0.73±0.68、1.62±0.37)均較原發(fā)性高血壓組(0.67±0.73、1.48±0.27)升高(t=2.05,P=0.043;t=2.08,P=0.041);(4)RI實驗組眼動脈及視網(wǎng)膜中央動脈內(nèi)徑和對照組無明顯統(tǒng)計學差異(P>0.05)。(5)高尿酸血癥不伴高血壓組眼動脈的RI (r=0.274, P=0.007),PI(r=0.318, P=0.001)和血清尿酸值具有相關性,CRA的各項指標和血清尿酸值無明顯相關,而高尿酸血癥伴高血壓組的眼動脈及視網(wǎng)膜中央動脈的各項指標和血尿酸均無明顯相關性。 結論:eFlow結合多普勒技術對研究高尿酸血癥所致眼動脈血流動力學改變具有較高的臨床價值,并提示高尿酸血癥可加速眼動脈及視網(wǎng)膜中央動脈的粥樣硬化改變,而高尿酸血癥合并高血壓可進一步加速終末小血管的粥樣硬化改變。eFlow結合多普勒技術對預測外周終末小動脈的硬化性改變具有一定的臨床價值。
[Abstract]:Objective: to study the internal diameter and hemodynamic changes of ophthalmic artery (ophthalmic artery,OA) and central retinal artery (central retinalartery CRA) in patients with hyperuricemia by enhanced blood flow imaging (eFlow) and spectral Doppler. In order to understand the relationship between hyperuricemia and peripheral vascular diseases, the relationship between hemodynamic parameters and uric acid value was discussed. Methods: 101 patients with hyperuricemia were selected as experimental group, 20 patients with essential hypertension and 30 healthy adults as control group. EFlow was used to observe the shape and inner diameter of ophthalmic artery and central retinal artery in orbit. Measurement of peak systolic velocity (peak of systolic velocity PSV), end diastolic velocity (end of diastolic velocity EDV), flow resistance index (resistanceindex RI) and pulsatility index (pulsatility index PI). Of ophthalmic artery and central retinal artery by spectral Doppler According to the years of diagnosis of hyperuricemia, the experimental group was divided into two groups: 鈮
本文編號:2448460
[Abstract]:Objective: to study the internal diameter and hemodynamic changes of ophthalmic artery (ophthalmic artery,OA) and central retinal artery (central retinalartery CRA) in patients with hyperuricemia by enhanced blood flow imaging (eFlow) and spectral Doppler. In order to understand the relationship between hyperuricemia and peripheral vascular diseases, the relationship between hemodynamic parameters and uric acid value was discussed. Methods: 101 patients with hyperuricemia were selected as experimental group, 20 patients with essential hypertension and 30 healthy adults as control group. EFlow was used to observe the shape and inner diameter of ophthalmic artery and central retinal artery in orbit. Measurement of peak systolic velocity (peak of systolic velocity PSV), end diastolic velocity (end of diastolic velocity EDV), flow resistance index (resistanceindex RI) and pulsatility index (pulsatility index PI). Of ophthalmic artery and central retinal artery by spectral Doppler According to the years of diagnosis of hyperuricemia, the experimental group was divided into two groups: 鈮
本文編號:2448460
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