This study evaluated the value of high-frequency ultrasonograpy for early detection of dorsal artery of foot in patients with type 2 diabetes mellitus （MD）. Eighty subjects including 40 patients with type 2 MD （T2D...This study evaluated the value of high-frequency ultrasonograpy for early detection of dorsal artery of foot in patients with type 2 diabetes mellitus （MD）. Eighty subjects including 40 patients with type 2 MD （T2DM group） and 40 healthy volunteers （NC group） were recruited. The intima-media thickness （IMT）, the inner diameter and the perfusion of dorsal artery of foot were measured by using high-frequency ultrasonograpy. Meanwhile, the parameters of vascular elasticity, including stiffness parameter （]3）, pressure-strain elastic modulus （Ep）, arterial compliance （AC）, augment index （AI）, and pulse wave conducting velocity （PWV]3） were detected by means of echo-tracking technique. The results showed that no significant difference was found in the IMT, systolic diameter （Ds）, diastolic diameter （Dd） and peak systolic velocity （PSV） between T2DM and NC groups. Ep and PWVβ were increased, and AC was decreased in T2DM group as compared with those in NC group with the differences being significant （P〈0.05 for all）. There was no significant difference in β and AI between T2DM and NC groups. It was concluded that high-frequency ultra- sonography in combination with echo-tracking technique is sensitive and non-invasive, and can be used for early detection of sclerosis of the lower extremity artery in patients with type 2 MD.展开更多
文摘This study evaluated the value of high-frequency ultrasonograpy for early detection of dorsal artery of foot in patients with type 2 diabetes mellitus （MD）. Eighty subjects including 40 patients with type 2 MD （T2DM group） and 40 healthy volunteers （NC group） were recruited. The intima-media thickness （IMT）, the inner diameter and the perfusion of dorsal artery of foot were measured by using high-frequency ultrasonograpy. Meanwhile, the parameters of vascular elasticity, including stiffness parameter （]3）, pressure-strain elastic modulus （Ep）, arterial compliance （AC）, augment index （AI）, and pulse wave conducting velocity （PWV]3） were detected by means of echo-tracking technique. The results showed that no significant difference was found in the IMT, systolic diameter （Ds）, diastolic diameter （Dd） and peak systolic velocity （PSV） between T2DM and NC groups. Ep and PWVβ were increased, and AC was decreased in T2DM group as compared with those in NC group with the differences being significant （P〈0.05 for all）. There was no significant difference in β and AI between T2DM and NC groups. It was concluded that high-frequency ultra- sonography in combination with echo-tracking technique is sensitive and non-invasive, and can be used for early detection of sclerosis of the lower extremity artery in patients with type 2 MD.
文摘目的探讨D-二聚体及血栓弹力图(TEG)在预测全髋关节置换术后急性下肢深静脉血栓(DVT)中的意义。方法纳入2015年12月-2016年5月在该院关节外科行全髋关节置换的患者93例,动态监测置换前及置换后1、3、5、7和12 d的D-二聚体,并定期检测TEG各项指标,置换后12 d行双下肢静脉彩超,根据彩超结果有无血栓形成分为血栓组与对照组。对比两组患者D-二聚体及TEG各项指标的水平。结果患者术后定期行患侧肢体血管彩超检查,术后1周内行彩超检查未发现血栓形成,术后第12天彩超检查提示11例患者存在小腿肌间静脉血栓,纳入血栓组;其余82例患者未发现血栓,纳入对照组。两组患者在年龄、吸烟史,体重、手术时长及术中失血量比较,差异无统计学意义(P>0.05)。血栓组与对照组术前及术后1、3、5、7和12 d D-二聚体水平比较,差异有统计学意义(P<0.05),所有患者术后较术前凝血反应时间(R)缩短,血栓最大幅度(MA)升高,伴α角升高。术后第12天血栓组TEG的R时间、凝固时间、a角、MA、凝血块强度值及D-二聚体与对照组比较,差异有统计学意义(P<0.05)。结论提示髋关节置换术后D-二聚体的动态监测及TEG、小腿肌间静脉丛彩超检查有助于早期发现血栓。
