Introduction: A lot of important structure located in or beside the petrous bone. When the lesions invaded the petrous bone, the gross total resection of them would be difficult and challenge to Neurosurgeon. Especially the lesions are huge.
For achieving the gross total resection of the huge petrous bone-invasive tumors and minimal damage to the important structures in the petrous bone, we combined several different approaches to every individual patient. We also aimed to describe the technical nuances and tips of the individual designed approaches and microsurgery
Methods: 57 patients, who have huge petrous bone-invasive tumors (average diameter is about 5 cm), were admitted to our department between 2014 and 2016. All of them underwent individualized microsurgery for resection the lesions. According to the relationship between the tumor and petrous bone, several different approaches were combined or improved. We designed different approach and microsurgery for every individual patient
Results: The gross total resection was achieved in 52 cases. Subtotal resection in 3 cases,partial resection in 2 cases. 50 patients did not have new neurological dysfunction. In the other 7 patients who had new neurological dysfunction, 4 patients got better after 3-6 months. The preoperative neurological dysfunction in 29 patients were improved after the surgery. The most common complication was leakage of CSF. 5 patients had this complication. There were no deaths in this study.
Conclusions: The individual designed approaches and microsurgery can increase the gross total resection rate of the tumors and nerve protection rate. As the result, the outcome of the patients who have the huge petrous bone-invasive tumors were improved significantly
Patient Care: My research discuss some new method to deal with the huge petrous bone-invasive tumor, and how to combine or improve the regular approaches to a new special approach for an individual patient. This study may improve the gross total resection rate of tumor. According to this study, the prognosis of the patients may be improved too.
Learning Objectives: By the conclusion of this session, participants should be able to: 1) Describe the importance of individual designed approach and microsurgery to every different patient. 2)Discuss, in small groups, that how to combine and improve the regular approach to be a new special approach for a patient, and what is the technical nuances and tips in the microsurgery. 3) Identify an effective treatment for the huge petrous bone-invasive tumor.