Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, USA; Division of Gross and Clinical Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Japan.
Department of Anatomy, G S Medical College & Hospital, Hapur, UP, India.
Clin Neurol Neurosurg. 2020 Apr;191:105690. doi: 10.1016/j.clineuro.2020.105690. Epub 2020 Jan 21.
Sympathetic branches to the abducens nerve derived from the internal carotid artery sympathetic plexus, while in the cavernous sinus, have been scantly described in the extant literature. Therefore, the present cadaveric study was performed to better elucidate this anatomy.
Eighteen cadaveric sides underwent dissection.
The number of branches derived from the sympathetic plexus traveling with the internal carotid artery in the cavernous sinus was one on 11.1 %, two in 11.1 %, and three in 72.2 %. One side was found to have no branches (5.6 %). The mean diameter of the distance from the posterior border of the internal carotid artery, length, and diameter of the branches was 7.0 ± 4.1 mm, 2.9 ± 1.3 mm, and 0.4 ± 0.1 mm, respectively. Of 44 of 45 sympathetic branches, 97.8 % originated from the lateral wall of the cavernous part of the internal carotid artery with only one from the medial wall.
Based on our cadaveric findings, sympathetic connections between the internal carotid artery and the abducens nerve are common. Therefore, surgeons who operate in or near the cavernous sinus should be aware of such connections in order not to place unwanted tension on the cavernous part of the internal carotid artery or abducens nerve during dissection.
发自颈内动脉交感神经丛的展神经交感支，在海绵窦内，在现有文献中仅有少量描述。因此，本尸检研究旨在更好地阐明这一体部解剖结构。
18 具尸体侧接受了解剖。
发自交感神经丛、伴行于颈内动脉在海绵窦内的分支数量为 1 支占 11.1%，2 支占 11.1%，3 支占 72.2%。有 1 侧（5.6%）没有分支。从颈内动脉后缘到分支的距离、长度和直径的平均值分别为 7.0±4.1mm、2.9±1.3mm 和 0.4±0.1mm。在 45 条交感神经支中的 44 条中，97.8%起源于颈内动脉海绵窦段的外侧壁，仅有 1 条起源于内侧壁。
根据我们的尸检发现，颈内动脉和展神经之间的交感联系很常见。因此，在海绵窦内或附近进行手术的外科医生应该意识到这种联系，以免在解剖过程中对颈内动脉海绵窦段或展神经施加不必要的张力。
