Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Oral and maxillofacial surgeryA comparative study of the endoscopy-assisted transoral approach versus external approaches for the resection of large benign parapharyngeal space tumors
Section snippets
Patients
Forty-four patients with PST treated between January 2010 and February 2015 at the Department of Oral and Maxillofacial Surgery at Sun Yat-Sen Memorial Hospital were selected for participation in this retrospective study. All patients consented to the procedures after they were fully informed about the advantages and disadvantages of the different procedures, including the EATA and the transcervical, transparotid, transmandibular, and combination approaches. After the patients provided informed
Results
Patient age and gender, tumor size, and pathologic diagnoses of the two groups did not differ significantly (Table I).
All of the tumors in both the EATA and EA groups were completely resected. The mean operation time for the EATA (88.6 ± 15.9 minutes; range 63.2-148.5 minutes) and EA (91.4 ± 12.4 minutes; range 53.4-139.7 minutes) groups were comparable. The mean blood loss during the operation for the EATA group (93.7 ± 10.6 mL; range 23.5-180.5 mL) was significantly less than that for the EA
Discussion
Patients with PSTs often exhibit no significant symptoms during the early phase, and PSTs are typically detected via imaging or physical examination as a result of their unique positions and the anatomic structures in the parapharyngeal space. However, these tumors can cause some symptoms, such as foreign body sensations; obstructive symptoms; dysphagia; snoring; and cerebral or sympathetic nerve dysfunction, including pain, hearing loss, or even expiratory dyspnea, as the tumor size increases
Conclusions
Both the EATA and the EAs enabled effective excision of the PSTs. The EATA resulted in decreased blood loss, fewer complications, decreased postoperative pain, a shorter hospitalization time, and a superior cosmetic appearance. However, both approaches have limitations with regard to the establishment of safe operative boundaries and surgical invasiveness. With continued efforts toward improving minimally invasive approaches and patient surgical outcomes, we believe that combined surgical
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Endoscopic Transvestibular Transmandibular Approach for Trigeminal Schwannoma in Infratemporal Fossa and Parapharyngeal Space
2018, World NeurosurgeryCitation Excerpt :Therefore the approach was a minimally invasive and feasible choice. It was different from the endoscopic-assisted transoral approach10,11; the incision was made at the vestibule (the outer buccal mucosa of the pterygomandibular fold), and the defect of the mandible ramus was enlarged to directly expose the tumor. In addition, the purely endoscopic procedure of this case was achieved through full extraction of the cystic fluid, intratumoral decompression, and blunt dissection of the capsule.
Synchronous pleomorphic adenoma in parotid gland and parapharyngeal space: a case report and literature review
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These authors contributed equally to this work.