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A retrospective analysis of surgery in prestyloid parapharyngeal tumors: lateral approaches vs transoral robotic surgery
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  • David Virós Porcuna,
  • Laura Pardo-Muñoz,
  • Constanza Viña Soria,
  • Viviana Nicastro,
  • Mar Palau Viarnès,
  • Carlos Pollán Guisasola
David Virós Porcuna
Hospital Universitari Germans Trias i Pujol

Corresponding Author:[email protected]

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Laura Pardo-Muñoz
Hospital Universitari Germans Trias i Pujol
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Constanza Viña Soria
Hospital Universitari Germans Trias i Pujol
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Viviana Nicastro
Hospital Universitari Germans Trias i Pujol
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Mar Palau Viarnès
Hospital Universitari Germans Trias i Pujol
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Carlos Pollán Guisasola
Hospital Universitari Germans Trias i Pujol
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Objective Surgery is the standard treatment for most tumors in the prestyloid parapharyngeal space (PPS) but it can be a challenging procedure because of the anatomical complexity of the area. Prestyloid surgery can be performed with various lateral approaches or with a medial approach using transoral robotic surgery (TORS) – either alone or in combination with a transcervical incision. Here we report our experience in the surgical management of prestyloid PPS tumors. Design We have retrospectively compared results with lateral or medial approaches to surgical resection of prestyloid tumors. Participants Between 2015 and 2020, 28 patients with prestyloid PPS tumors underwent surgery at our center: 14 with lateral approaches, including transcervical, transcervical-parotid, and transcervical-mandibular, 12 with TORS, and two with TORS plus a transcervical incision. Main outcome measures Surgical time, post-surgical complications, length of hospital stay, need for feeding tube, and relapse-free survival in the two patient groups. Results Pleomorphic adenoma was the most frequent tumor and 60.7% of the tumors were benign. Tumor volume and maximum length were similar in patients undergoing surgery with a lateral approach and in those undergoing TORS. Intraoperative image guidance and ultrasound were used in 33% of TORS. TORS was associated with less surgical time, fewer complications, and shorter hospital stays. Survival rates were similar in the two groups. Conclusion The medial approach by TORS offers better surgical results in prestyloid tumors than the open lateral approach and can be refined by intraoperative guidance.
12 Jul 2020Submitted to Clinical Otolaryngology
14 Jul 2020Submission Checks Completed
14 Jul 2020Assigned to Editor
23 Aug 2020Reviewer(s) Assigned
29 Nov 2020Review(s) Completed, Editorial Evaluation Pending
29 Nov 2020Editorial Decision: Revise Major
05 Dec 20201st Revision Received
07 Dec 2020Submission Checks Completed
07 Dec 2020Assigned to Editor
28 Dec 2020Reviewer(s) Assigned
16 Jan 2021Review(s) Completed, Editorial Evaluation Pending
22 Feb 2021Editorial Decision: Revise Major