orhan Asya

After graduating from Marmara University School of Medicine, I completed my residency in Otorhinolaryngology–Head and Neck Surgery at the same institution. I am currently working at Marmara University as a faculty member . My special clinical and academic interests include rhinology, skull base surgery, and endocrine surgery. I have international experience in rhinology and skull base surgery, and I also received a scholarship from the European Society of Endocrine Surgeons, through which I completed advanced training in endocrine surgery at two different centers in Europe.


Sessions

09-10
11:45
30min
Approach in Locally Advanced Poorly Differentiated Thyroid Cancer Followed by Salvage Surgery: A Video-Based Case Presentation
orhan Asya

Purpose / Aim

To illustrate the decision-making process and surgical techniques in managing locally advanced poorly differentiated thyroid cancer, including an organ-preserving strategy followed by salvage laryngectomy in the setting of radiation-induced laryngeal necrosis.

Background

I am a high-volume thyroid surgeon with dedicated experience in managing aggressive thyroid cancers. In this presentation, I will discuss a patient with locally advanced poorly differentiated thyroid carcinoma who underwent larynx-preserving resection followed by adjuvant radiotherapy. Three months postoperatively, the patient developed radiation-induced laryngeal necrosis that failed conservative management. Salvage total laryngectomy and tracheal resection with free-flap reconstruction were subsequently performed.

Description

Through operative video footage and perioperative documentation, ı will highlight:

  • Selection criteria for larynx-preserving surgery in locally advanced thyroid cancer

  • Oncologic and functional considerations

  • Management of post-radiation complications including laryngeal necrosis

  • Techniques and outcomes of salvage laryngectomy and tracheal resection with free-tissue reconstruction

Head and Neck Oncology
Head & Neck Surgery 4
09-10
17:30
30min
Surgical Management of Parathyroid Adenomas with Non-Concordant Imaging: Strategies and Intraoperative Decision-Making
orhan Asya

Description

This presentation will focus on the surgical management of patients with non-localizing or discordant-imaging parathyroid adenomas, one of the most challenging scenarios in endocrine surgery. Using operative video and case examples, the session will demonstrate practical strategies for successful exploration when preoperative localization studies such as ultrasound, sestamibi, or 4D-CT are inconclusive or discordant. Emphasis will be placed on systematic bilateral neck exploration, recognition of anatomic variants, intraoperative PTH monitoring, and identification of ectopic glands, including mediastinal and intrathyroidal locations. Decision-making algorithms and intraoperative navigation techniques will also be discussed.

Outcome Objectives

By the end of this session, participants will be able to:

  1. Plan and execute surgery for parathyroid adenomas with non-concordant imaging findings.

  2. Apply safe and systematic bilateral neck exploration techniques.

  3. Utilize intraoperative PTH monitoring to confirm surgical success.

  4. Identify and manage ectopic and difficult parathyroid lesions effectively.

Background

While most parathyroid adenomas can be accurately localized preoperatively, a subset of patients present with discordant or negative imaging results. These cases require advanced surgical expertise and meticulous exploration to achieve cure. Sharing real operative experience provides valuable insights into intraoperative decision-making and problem-solving in complex parathyroid surgery.

Head and Neck Oncology
Head & Neck Surgery 4
09-11
07:00
40min
Strategies for Maintaining Long-Term Patency: The Role of Drain Placement in Frontal Sinus Surgery
orhan Asya, Abdullah Ozdem
Rhinology
Rhinology 6 (ICC - 3B/37)