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Graves病(GD)在原发性甲亢中最为常见,可累及全身,主要侵犯心血管系统。目前,临床多为甲亢与心功能关系的相关研究,其与血管弹性关系的研究尚少,且颈动脉结构和功能改变并不完全一致[1-2],因此,两者应该有效结合进行评价。根据《血管和浅表超声检查指南》内中膜增厚诊断标准,将其定义为内-中膜厚度(intima-medium thickness,IMT)≥1.0 mm[3]。本研究应用超声彩色脉搏波技术(UFPWV)定量评价内中膜尚未增厚GD病人早期颈动脉弹性参数的变化,并分析该变化与危险因素之间的关系。现作报道。
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2组性别、年龄差异均无统计学意义(P>0.05);GD组病人收缩压、脉压和心率均明显高于对照组(P < 0.01),舒张压低于对照组(P < 0.05);GD组病人FT3、FT4均明显高于对照组,TSH明显低于对照组(P < 0.01)(见表 1)。
分组 n 男 女 年龄/岁 心率/(次/分) 收缩压/mmHg 舒张压/mmHg 脉压/mmHg FT3/(pmol/L) FT4/(pmol/L) TSH/(mIU/L) GD组 76 22 54 40.58±12.88 94.20±18.06 123.68±10.68 74.65±7.41 48.96±6.82 14.72±6.33 100.21±60.57 0.03±0.05 对照组 76 23 53 40.70±13.56 70.59±7.51 114.67±8.73 77.08±7.47 37.59±7.48 4.23±1.07 25.81±5.67 2.25±1.02 t — 0.03* 0.06 -10.52* -5.70 2.02 -9.74 -14.25 -10.66 19.01 P — >0.05 >0.05 < 0.01 < 0.01 < 0.05 < 0.01 < 0.01 < 0.01 < 0.01 *示χ2值 表 1 2组受试者一般资料比较(x±s)
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GD组颈总动脉IMT与对照组差异无统计学意义(P>0.05),BS及ES均明显高于对照组(P < 0.01)(见表 2)。
分组 IMT/mm BS/(m/s) ES/(m/s) GD组 0.55±0.09 6.58±0.75 8.62±1.38 对照组 0.54±0.09 5.64±0.76 6.49±1.20 t -0.48 -7.64 -10.18 P >0.05 < 0.01 < 0.01 表 2 2组颈总动脉IMT、BS及ES比较(x±s)
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Pearson相关分析结果显示,GD病人血管弹性参数BS、ES与IMT均呈正相关关系(P < 0.01);BS、ES与甲状腺容积均无明显相关关系(P>0.05);ES与FT3水平呈正相关关系(r=0.467,P < 0.01),BS与FT3、FT4、TSH,ES与FT4、TSH均无明显相关关系(P>0.05)。
彩色脉搏波技术定量评价Graves病早期颈动脉结构及功能变化
Application value of UFPWV in quantitative evaluating the early changes of carotid artery structure and function in patients with Graves disease
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摘要:
目的应用彩色脉搏波技术(ultrafast pulse wave velocity,UFPWV)定量评价Graves病(Graves disease,GD)病人早期颈动脉结构和功能变化。 方法选取内-中膜厚度(intima-medium thickness,IMT)未增厚GD病人76例(GD组),同期健康体检成人76名作为对照组,测量2组受试者颈动脉IMT,采用UFPWV采集脉搏波传导速度,包括收缩期开始时脉搏波传导速度(beginning of systole,BS)和收缩期结束脉搏波传导速度(end of systole,ES),比较相关参数,分析BS、ES与IMT、甲状腺容积及血清甲状腺激素水平的相关性。 结果GD组颈总动脉IMT与对照组差异无统计学意义(P>0.05),BS及ES均明显高于对照组(P < 0.01)。GD病人血管弹性参数BS、ES与甲状腺体积均无明显相关性(P>0.05),但均与IMT呈明显正相关关系(P < 0.01),ES与游离三碘甲状原氨酸水平亦呈正相关关系(P < 0.01)。 结论UFPWV可发现GD病人颈动脉IMT增厚以前的早期弹性变化,可作为评价GD病人动脉弹性的新型有效手段。 Abstract:ObjectiveTo explore the application value of ultrafast pulse wave velocity(UFPWV) in quantitative evaluating the early changes of carotid artery structure and function in patients with Graves disease(GD). MethodsSeventy-six GD patients without intima-media thickness(IMT) of carotid artery thickening and 76 healthy people were divided into the GD group and control group, respectively.The carotid IMT in two groups was measured.The pulse wave conduction velocity was recorded using the UFPWV technology, and which included the pulse wave conduction velocity at the beginning and end of systole(BS and ES).The related parameters were compared, and the correlation of BS and ES with IMT, thyroid volume and serum thyroid hormone level were analyzed. ResultsThere was no statistical significance in IMT between GD group and control group(P>0.05), and the BS and ES in GD group were significantly higher than those in control group(P < 0.01).The BS and ES of vascular elasticity parameters were not correlated with the thyroid volume(P>0.05), but were positively correlated with IMT(P < 0.01).The ES was positively correlated with the level of free triiodothyronine. ConclusionsThe early changes of carotid artery elasticity in patients with GD before IMT thickening can be detected by UFPWV, which can be used as a new effective method to evaluate the artery elasticity in patients with GD. -
Key words:
- Graves disease /
- carotid artery /
- ultrafast pulse wave velocity /
- intima-media thickness
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表 1 2组受试者一般资料比较(x±s)
分组 n 男 女 年龄/岁 心率/(次/分) 收缩压/mmHg 舒张压/mmHg 脉压/mmHg FT3/(pmol/L) FT4/(pmol/L) TSH/(mIU/L) GD组 76 22 54 40.58±12.88 94.20±18.06 123.68±10.68 74.65±7.41 48.96±6.82 14.72±6.33 100.21±60.57 0.03±0.05 对照组 76 23 53 40.70±13.56 70.59±7.51 114.67±8.73 77.08±7.47 37.59±7.48 4.23±1.07 25.81±5.67 2.25±1.02 t — 0.03* 0.06 -10.52* -5.70 2.02 -9.74 -14.25 -10.66 19.01 P — >0.05 >0.05 < 0.01 < 0.01 < 0.05 < 0.01 < 0.01 < 0.01 < 0.01 *示χ2值 表 2 2组颈总动脉IMT、BS及ES比较(x±s)
分组 IMT/mm BS/(m/s) ES/(m/s) GD组 0.55±0.09 6.58±0.75 8.62±1.38 对照组 0.54±0.09 5.64±0.76 6.49±1.20 t -0.48 -7.64 -10.18 P >0.05 < 0.01 < 0.01 -
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