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　　传统的胸腺瘤(liú )手(shǒu )术(shù )要(yào )从(cóng )正中劈(pī )开胸(xiōng )骨(gǔ )，出(chū )血(xuè )多，创伤大，术后留下一条长(zhǎng )长的疤痕，病人(rén )痛不(bú )堪(kān )言。而常(cháng )规(guī )经肋间(jiān )胸腔镜(jìng )无(wú )法进(jìn )行(háng )对(duì )侧纵膈(gé )脂肪的(de )清(qīng )扫。而(ér )与开胸手术相(xiàng )比，经剑突下胸腔(qiāng )镜纵隔肿瘤(liú )切(qiē )除术(shù )是(shì )在胸(xiōng )骨(gǔ )和(hé )心包之间的间隙进(jìn )行，通(tōng )过形成(chéng )人工气胸，为手术操作提供了宽阔清晰的视野，避免(miǎn )了胸骨(gǔ )切开。