Ghavami Yaser, Haidar Yarah M, Maducdoc Marlon, Tjoa Tjoson, Moshtaghi Omid, Lin Harrison W, Djalilian Hamid R
1 Division of Neurotology and Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine, Irvine, California, USA.
2 Division of Neurotology and Skull Base Surgery, Department of Biomedical Engineering, University of California, Irvine, Irvine, California, USA.
Otolaryngol Head Neck Surg. 2017 Sep;157(3):530-532. doi: 10.1177/0194599817712686. Epub 2017 Jun 13.
A modified lateral temporal bone resection (mLTBR) is a unique technique that spares the tympanic membrane (TM) and ossicles in select patients with squamous cell carcinoma (SCCa). The records of 5 patients with SCCa of the temporal bone with negative frozen-section biopsy at the tympanic annulus were reviewed. The mean follow-up time for the patients was 29.2 months. One patient received postoperative radiation due to cervical nodal extracapsular spread. All patients were recurrence free as of the most recent follow-up (range, 8-50 months). Postoperative audiometry demonstrated an average conductive hearing loss of 9 dB (range, 0-17 dB). The mLTBR with sparing of the TM can be an effective alternative to the traditional lateral temporal bone resection (LTBR) with better hearing results for patients with SCCa involving the bony external auditory canal. In the short term, oncologic results of mLTBR appear equivalent to the LTBR. However, long-term follow-up is needed for >5-year outcomes.
改良外侧颞骨切除术（mLTBR）是一种独特的技术，可在部分鳞状细胞癌（SCCa）患者中保留鼓膜（TM）和听小骨。回顾了5例颞骨SCCa患者的记录，这些患者鼓膜环的冰冻切片活检结果为阴性。患者的平均随访时间为29.2个月。1例患者因颈部淋巴结包膜外扩散接受了术后放疗。截至最近一次随访（范围为8 - 50个月），所有患者均无复发。术后听力测试显示平均传导性听力损失为9 dB（范围为0 - 17 dB）。对于累及骨性外耳道的SCCa患者，保留TM的mLTBR可以是传统外侧颞骨切除术（LTBR）的有效替代方法，听力结果更好。短期内，mLTBR的肿瘤学结果似乎与LTBR相当。然而，需要进行超过5年的长期随访以观察结果。
