Department of Thoracic Surgery, Sapporo Medical University School of Medicine and Hospital, Sapporo, South 1, West 16, Chuo-ku, Sapporo, 060-8543, Japan.
Division of Radiology and Nuclear Medicine, Sapporo Medical University Hospital, Sapporo, Japan.
Surg Today. 2022 Jul;52(7):1054-1062. doi: 10.1007/s00595-021-02417-z. Epub 2021 Nov 23.
The subsuperior segmental bronchi (B*) forms the subsuperior segment (S*) between the superior (S) and basal segment (S, S, S, S) of the lung. However, the anatomical planes of S* remains undefined. The present study clarified the anatomical features of S*.
We reviewed the anatomical patterns of pulmonary vessels and the left lung bronchus in 539 patients using three-dimensional computed tomography. We report the anatomic structure in S*.
A total of 537 patients were analyzed. B* was observed in 129 (24.0%) patients. The intersegmental vein between S and S* was complete in all cases. The absence of intersegmental veins of S* was observed in 77 (14.3%) patients, reaching 59.7% of B* cases. Twenty-two (4.1%) cases of B* diverged from the trunk of the basal bronchus, and about half of the B* branched to the dorsolateral (n = 77, 14.3%) or dorsal (n = 2, 0.37%) direction.
Our study revealed the branching patterns of B* and anatomical intersegmental veins of S*. Our results provide useful information regarding anatomical segmentectomy including or adjusting to the left S*.
亚段支气管（B*）在肺的上叶（S）和基底段（S、S、S、S）之间形成亚段（S*）。然而，S的解剖平面尚未确定。本研究旨在阐明 S的解剖特征。
我们使用三维计算机断层扫描对 539 例患者的肺血管和左肺支气管的解剖模式进行了回顾性研究。我们报告了 S*的解剖结构。
共分析了 537 例患者。129 例（24.0%）患者观察到 B*。S 和 S之间的节段间静脉在所有病例中均完整。77 例（14.3%）患者的 S无节段间静脉，占 B病例的 59.7%。22 例（4.1%）B从基底支气管干分出，约一半的 B*向背外侧（n=77，14.3%）或背侧（n=2，0.37%）分支。
本研究揭示了 B的分支模式和 S的解剖性节段间静脉。我们的研究结果为包括或调整左侧 S*的解剖性节段切除术提供了有用的信息。
