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Anatomy of the left subsuperior segment for segmentectomy
Ryunosuke Maki1, Masahiro Miyajima1, Keishi Ogura2
1Department of Thoracic Surgery, Sapporo Medical University School of Medicine and Hospital, Sapporo, South 1, West 16, Chuo-ku, Sapporo, 060-8543, Japan.
Surgery Today
|November 23, 2021
Summary
The subsuperior segmental bronchi (B*) anatomy was clarified, revealing variations in its branching and intersegmental veins. This provides crucial data for precise lung segmentectomies.
Area of Science:
- Thoracic anatomy
- Pulmonary medicine
- Surgical anatomy
Background:
- The subsuperior segment (S*) of the lung, situated between superior (S6) and basal segments, has undefined anatomical planes.
- Understanding the precise anatomy of S* is essential for accurate surgical interventions.
Purpose of the Study:
- To clarify the anatomical features of the subsuperior segment (S*) and its associated bronchus (B*).
- To investigate the branching patterns of B* and the intersegmental veins of S*.
Main Methods:
- Analysis of 3D computed tomography scans from 539 patients.
- Review of anatomical patterns of pulmonary vessels and the left lung bronchus.
Main Results:
- Subsuperior segmental bronchi (B*) were identified in 24.0% of patients.
- Absence of intersegmental veins for S* occurred in 14.3% of patients, and in 59.7% of B* cases.
- Variations in B* branching, including divergence from the basal bronchus and branching direction, were documented.
Conclusions:
- The study elucidated the branching patterns of B* and the anatomical intersegmental veins of S*.
- Findings offer valuable insights for anatomical segmentectomy procedures involving the left S*.
