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肺靱帯アプローチは,葉間操作を行わず尾側から脈管処理を行う肺切除で,逆行性アプローチ・肺静脈(PV)先行アプローチとも呼ばれた.分葉不全の下葉切除のほか,本稿の担当する下葉区域切除で行われる.肺靱帯に接する区域を含む切除であれば,どの区域も肺靱帯アプローチが可能であるが,高度分葉不全でなければ中下葉間でA8が露出できないことはほとんどなく,前方のS7/8を含む切除は葉間アプローチの区域切除が可能な場合が多い.そのため,この肺靱帯先行アプローチは,下葉の後・下区域の切除,S10/S9+10/分葉不全のS6+10を含む区域・亜区域切除に主に用いられるアプローチとなる.
For posterior basal segmentectomy of lower lung, pulmonary ligament approach is rational. That is direct and shortest approach to the resected lung, and can leave lung fissure intact, needless to expose interlober vessels and bronchus, which enables surgeons to perform second surgery easily.
Procedure
1. Retract lower lobe cranially, and divide pulmonary ligament until lower pulmonary vein (PV) is exposed.
2. Identify and dissect segmental vein.
3. Segmental bronchus is lying beside the resected vein and running across the vein. Identify and cut.
4. Artery and bronchus run parallel. Expose segmental artery and dissect it.
5. Identify intersegmental plane and divide lung parenchyma
To master this approach, surgeons need to adopt specific inverted view and 3-dimensional computed tomography (3D-CT) is useful for pre-operative simulation.
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