Study On Internal Congenital Jugular Phlebectasia In Children By Ultrasonography

Objective:To measure the normal value of internal jugular vein (IJV) in children aged from0to14years and explore its clinical significance.Method:1000normal internal jugular veins were included in this study. All of the veins were imaged by ultrasonography at the level of the circoid cartilage. The maximal antero-posterior and transverse diameters of the IJV were measured during regular breathing and Valsalva maneuver.Results:All of measurements above were obtained in normal distribution. There was a significant difference between the right and left diameters of the IJV. Also, obvious differences were found in the sizes of IJV during the Valsalva states vs. resting states. While all of the parameters of IJV increased according to age、weight、height and body surface area, but not gender.Conclusions:The results obtained in this study may be important in the intravascular intervention to IJV. These values of IJV may also provide reference to the diagnosis of phlebectasia. Objective:To evaluate the diagnostic value of velocity vector image(VVI) for internal congenital jugular phlebectasia in children.Methods:30children with internal congenital jugular phlebectasia were included in this study. This team and30children without neck pathologies were examined with VVI. Maximum of velocity(Vmax), maximum of strain(Smax)and maximum of strain rate(SRmax)of lateral wall in short axis were measured, which were supplied by VVI automatic analysis software.Results:Vmax, Smax of corresponding segment had no significant differences in the two groups(P>0.05).But SRmax of corresponding segment had significant differences(P<0.05). SRmax of normal control group were higher than those of experimental group.Conclusion:VVI could be used to detect the blood vessel function and provide a quantitative technique to evaluate the internal jugular vein in patients with internal congenital jugular phlebectasia. SRmax of experimental group were lower than those of normal control group. This may be used to offer a basis to improving early diagnosis and selecting a treatment of internal congenital jugular phlebectasia. Objective:To investigate the diagnostic value of ultrasound and improvement of diagnostic criteria for internal congenital jugular phlebectasia.Methods:Internal jugular veins (IJV) of131children with internal congenital jugular phlebectasia were analysised shape, characteristic of an echo and blood dynamic character by ultrasonography. The diameters of the IJV were measured by compared with themselves before and after Valsalva maneuver. These values were also compared with the IJV sizes of the normal children.Results:Diameters of the IJV showed significant difference between the normal control group and experimental group during Valsalva state. The transverse and antero-posterior diameter of IJV was expanded by2.47and2.42times that of the resting state. But there were no statistically obvious differences in the sizes of IJV during the resting state.Conclusion:Ultrasound diagnosis of internal congenital jugular phlebectasia is a preferred method. The results we obtained in this study may be important to improve diagnostic procedure preliminarily by ultrasonography. Other special imaging tests may be needed to diagnose the patients who progress to venous aneurysm.