期刊
JOURNAL OF NEUROSURGERY
卷 138, 期 1, 页码 276-286出版社
AMER ASSOC NEUROLOGICAL SURGEONS
DOI: 10.3171/2022.3.JNS212962
关键词
anterior transpetrosal approach; anterior petrosectomy; morbidity; skull base
This study reviewed 49 patients who underwent extradural anterior petrosal approach (EAPA) surgery between 2012 and 2021. The study focused on surgical complications and found that complications related to bone resection were correlated with the extent of tumor resection, while complications related to the approach were not correlated with the amount of bone drilling.
OBJECTIVE Concerns about the approach-related morbidity of the extradural anterior petrosal approach (EAPA) have been raised, especially regarding temporal lobe and venous injuries, hearing impairment, facial nerve palsy, cerebrospinal fluid fistula, and seizures. There is lack in the literature of studies with detailed analysis of surgical complications. The authors have presented a large series of patients who were treated with EAPA, focusing on complications and their avoidance. METHODS The authors carried out a retrospective review of patients who underwent EAPA at their institution between 2012 and 2021. They collected preoperative clinical characteristics, operative reports, operative videos, findings on neuroimaging, histological diagnosis, postoperative course, and clinical status at last follow-up. For pathologies without petrous bone invasion, the amount of petrous apex drilling was calculated and classified as low (< 70% of the volume) or high (>= 70%). Complications were dichotomized as approach related and resection related. RESULTS This study included 49 patients: 26 with meningiomas, 10 brainstem cavernomas, 4 chondrosarcomas, 4 chordomas, 2 schwannomas, 1 epidermoid cyst, 1 cholesterol granuloma, and 1 osteoblastoma. The most common approach-related complications were temporal lobe injury (6.1% of patients), seizures (6.1%), pseudomeningocele (6.1%), hearing impairment (4.1%), and dry eye (4.1%). Approach-related complications occurred most commonly in patients with a meningioma (p = 0.02) and Meckel & rsquo;s cave invasion (p = 0.02). Gross-total or near-total resection was correlated with a higher rate of tumor resection & ndash;related complications (p = 0.02) but not approach-related complications (p = 0.76). Inferior, lateral, and superior tumoral extension were not correlated with a higher rate of tumor resection & ndash;related complications. No correlation was found between high amount of petrous bone drilling and approach-or resection-related complications. CONCLUSIONS EAPA is a challenging approach that deals with critical neurovascular structures and demands specific skills to be safely performed. Contrary to general belief, its approach-related morbidity seems to be acceptable at dedicated skull base centers. Morbidity can be lowered with careful examination of the preoperative neuroradiological workup, appropriate patient selection, and attention to technical details.
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