Freedman Ryan L, Mielke Nicholas, Younes Edmond, Kim Chaesik, Bahl Amit, Bahl Reecha S
Department of Ophthalmology, Visual and Anatomical Sciences, Kresge Eye Institute, Wayne State University School of Medicine, Detroit, Michigan.
Oakland University William Beaumont School of Medicine, Rochester, Michigan.
J AAPOS. 2023 Oct;27(5):281.e1-281.e4. doi: 10.1016/j.jaapos.2023.07.010. Epub 2023 Sep 17.
To investigate whether abnormal head posture (AHP) induces changes in common carotid artery blood flow (CCBF), thereby leading to the development of facial asymmetry in the setting of strabismus and ocular torticollis.
This was a prospective observational study of pediatric subjects in an urban ophthalmology clinic who underwent bilateral carotid artery ultrasound examination with spectral Doppler in an upright, straight-head posture and with a head tilt of 30°-45° to the right and left. The primary outcome was change in carotid flow on the side of the head tilt. The secondary outcome was change in blood flow on the contralateral side of the head tilt.
Seventeen subjects were enrolled, and 34 carotid arteries were assessed. There was no significant difference between upright, straight-head position and head tilt in ipsilateral (7.8 ± 1.8 mL/s vs 7.5 ± 2.0 mL/s [P = 0.4312]) or contralateral (7.8 ± 1.8 mL/s vs 8.1 ± 2.4 mL/s [P = 0.3401]) CCBF.
CCBF does not fluctuate with AHP and thus does not appear to be the etiology for facial asymmetry in strabismus.
研究异常头位（AHP）是否会引起颈总动脉血流（CCBF）变化，进而导致斜视和眼性斜颈患者出现面部不对称。
这是一项针对城市眼科诊所儿科患者的前瞻性观察性研究，这些患者在直立、头部正直姿势以及头部分别向右侧和左侧倾斜30° - 45°时接受双侧颈动脉超声频谱多普勒检查。主要观察指标是头部倾斜侧颈动脉血流的变化。次要观察指标是头部倾斜对侧血流的变化。
共纳入17名受试者，评估了34条颈动脉。在同侧（7.8 ± 1.8 mL/s对7.5 ± 2.0 mL/s [P = 0.4312]）或对侧（7.8 ± 1.8 mL/s对8.1 ± 2.4 mL/s [P = 0.3401]）CCBF方面，直立、头部正直姿势与头部倾斜之间无显著差异。
CCBF不会随AHP波动，因此似乎不是斜视患者面部不对称的病因。
