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　　传(chuán )统的胸腺瘤手(shǒu )术(shù )要(yào )从正中劈(pī )开(kāi )胸(xiōng )骨，出血多，创伤大，术(shù )后(hòu )留下一条长长的疤痕，病(bìng )人痛(tòng )不(bú )堪言。而常规(guī )经肋间胸腔(qiāng )镜(jìng )无(wú )法(fǎ )进行对侧(cè )纵膈脂肪的清扫。而与开胸手(shǒu )术(shù )相(xiàng )比，经剑突下胸腔(qiāng )镜(jìng )纵隔肿瘤(liú )切除术(shù )是(shì )在胸(xiōng )骨和心包之间的(de )间隙进行，通过形(xíng )成人(rén )工气(qì )胸(xiōng )，为手(shǒu )术操(cāo )作(zuò )提供(gòng )了宽(kuān )阔清晰的视野，避免了胸(xiōng )骨(gǔ )切(qiē )开(kāi )。