TY - JOUR
T1 - Flow Volume in the Jugular Vein and Related Hemodynamics in the Branches of the Jugular Vein
AU - Chung, Chih Ping
AU - Hsu, Hung Y.
AU - Chao, A. Ching
AU - Wong, Wen Jang
AU - Sheng, Wen Yung
AU - Hu, Han H.
N1 - Funding Information:
This study was supported by the grant (NSC 94 to 2314-B-075 to 032) from the National Science Council, Taiwan.
PY - 2007/4/1
Y1 - 2007/4/1
N2 - Venous reflux in the internal jugular vein branches (JB) was found frequently in patients of certain neurologic disorders. We hypothesized that the retrograde-flow in JB is associated with retrograde hypertension transmitted from the internal jugular vein (IJV), which presumably underlies those neurologic disorders. In this study, we used color-Doppler imaging to evaluate the dynamic venous flow patterns in the IJV and its branches in 50 normal individuals (21 men, 29 women; mean age: 40.9 ± 14.9 y, range: 22 to 70 y). The flow-direction of all detected JB (n = 100) was flowing into the IJV at baseline. During the Valsalva maneuver (VM), 38 JB (38%) had a retrograde-flow. Retrograde-flow in JB was significantly associated with IJV valve incompetence (OR = 7.6; 95% CI = 2.6 to 21.8; p = 0.0002) and greater IJV blood flow volume (blood flow volume >670 mL/min) (OR = 6.6; 95% CI = 1.8 to 24.5; p = 0.0052), both of which may reflect higher IJV pressure transmission during VM. The sonographic findings can be used in the future studies of diseases that are suspected to be related with retrograde cerebral venous hypertension due to an elevated IJV venous pressure. (E-mail: [email protected]).
AB - Venous reflux in the internal jugular vein branches (JB) was found frequently in patients of certain neurologic disorders. We hypothesized that the retrograde-flow in JB is associated with retrograde hypertension transmitted from the internal jugular vein (IJV), which presumably underlies those neurologic disorders. In this study, we used color-Doppler imaging to evaluate the dynamic venous flow patterns in the IJV and its branches in 50 normal individuals (21 men, 29 women; mean age: 40.9 ± 14.9 y, range: 22 to 70 y). The flow-direction of all detected JB (n = 100) was flowing into the IJV at baseline. During the Valsalva maneuver (VM), 38 JB (38%) had a retrograde-flow. Retrograde-flow in JB was significantly associated with IJV valve incompetence (OR = 7.6; 95% CI = 2.6 to 21.8; p = 0.0002) and greater IJV blood flow volume (blood flow volume >670 mL/min) (OR = 6.6; 95% CI = 1.8 to 24.5; p = 0.0052), both of which may reflect higher IJV pressure transmission during VM. The sonographic findings can be used in the future studies of diseases that are suspected to be related with retrograde cerebral venous hypertension due to an elevated IJV venous pressure. (E-mail: [email protected]).
KW - Internal jugular vein
KW - Internal jugular vein branch
KW - Internal jugular vein valve incompetence
KW - Transient global amnesia
KW - Venous hypertension
KW - Venous reflux
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U2 - 10.1016/j.ultrasmedbio.2006.10.009
DO - 10.1016/j.ultrasmedbio.2006.10.009
M3 - Article
C2 - 17337108
AN - SCOPUS:33947531132
SN - 0301-5629
VL - 33
SP - 500
EP - 505
JO - Ultrasound in Medicine and Biology
JF - Ultrasound in Medicine and Biology
IS - 4
ER -