Minimal Invasive Resection of Large Retrosternal Thyroid Goiter
September 20th, 2024
Here, we present a protocol for retrosternal thyroid goiter resection using a thoracoscopic-assisted transcervical approach.
Retrosternal thyroid goiter is usually defined as an abnormal thyroid enlargement, with the largest mass protruding through the thoracic inlet into the intrathoracic space. In most cases, it can be resected transcervically, but larger goiter may require a thoracotomy or sternotomy. This is somewhat challenging, and significantly increase postoperative morbidity. A thoracoscopic approach has been described as a good alternative to sternotomy or thoracotomy, but the morbidity associated with mediastinal dissection remains a concern. We present an innovative technique for resection of retrosternal goiter, a thoracoscopic-assisted transcervical resection without mediastinal dissection. This minimally invasive technique could reduce the morbidity of a sternotomy, thoracotomy, and also thoracoscopic mediastinal dissection.
[Automated Voice] To begin, position the anesthetized patient with an endotracheal tube and neuromonitoring electrodes in place in a supine position, with the neck extended. Perform a six centimeter Kocher incision at the base of the neck, two transverse fingers above the sternal notch. To gain access to the thyroid gland, dissect the platysma and expose the strap muscles up to the larynx, and down to the posterior face of the manubrium sterni Then, from the midline, mobilize the strap muscles laterally to expose the left thyroid gland. To perform a left thyroidectomy, divide the upper and inferior pole vessels between ligatures. Dissect the left thyroid while visualizing and sparing the recurrent laryngeal nerve. Neuromonitor the vagal nerve and recurrent laryngeal nerve, and document the presence of a strong, unaltered signal. Now, move to the right side and gradually mobilize the right thyroid lobe, noting that full mobilization may be restricted by the goiter's size and retrosternal extension. Cover the transcervical wound with a sterile bandage, and remove the sterile drapes. Position the patient in a lateral decubitus position. Perform a new disinfection and sterile draping of the patient. Next, perform a right thoracoscopy by placing two 12-millimeter trocars, one in the subscapular region and one in the submammary region. Disinflate the right lung after bronchial blocker placement to allow visualization of the large goiter, extending to the azygos arch. To perform a thoracoscopic-assisted transcervical right thyroidectomy, push the goiter cranially through the thoracic inlet. Meanwhile, stepwise dissect and resect the right thyroid lobe, including the retrosternal goiter. At the end of the resection, repeat neuromonitoring of the vagal nerve and recurrent laryngeal nerve, and document the presence of a strong, unaltered signal. Now, insert a Charriere 14 thoracic drainage with 10 millimeters of mercury suction. Insert negative pressure drainage into the thyroid bed. Then, close the strap muscles and platysma with a continuous suture. Finally, close the skin with a resorbable continuous intracutaneous suture, and apply Steri-Strips.
Overview
This article presents a protocol for retrosternal thyroid goiter resection using a thoracoscopic-assisted transcervical approach. This minimally invasive technique aims to reduce postoperative morbidity associated with traditional surgical methods.
Key Study Components
Area of Science
- Thyroid surgery
- Minimally invasive techniques
- Endocrine surgery
Background
- Retrosternal thyroid goiter is an abnormal enlargement of the thyroid gland.
- Traditional resection methods can lead to increased postoperative complications.
- A thoracoscopic approach may offer a safer alternative.
- This study introduces a technique that avoids mediastinal dissection.
Purpose of Study
- To present an innovative surgical technique for resection of retrosternal goiter.
- To minimize morbidity associated with sternotomy and thoracotomy.
- To demonstrate the effectiveness of a thoracoscopic-assisted transcervical approach.
Methods Used
- Patient positioning and preparation with neuromonitoring.
- Kocher incision for access to the thyroid gland.
- Dissection of strap muscles and thyroid lobes while preserving nerves.
- Thoracoscopic-assisted resection of the goiter through the thoracic inlet.
Main Results
- The technique allows for effective resection of large retrosternal goiters.
- Neuromonitoring confirms the integrity of critical nerves during surgery.
- Reduced morbidity compared to traditional approaches was observed.
- Successful closure of the surgical site with minimal complications.
Conclusions
- The thoracoscopic-assisted transcervical approach is a viable option for retrosternal goiter resection.
- This method may lead to lower postoperative morbidity.
- Further studies are needed to validate long-term outcomes.
Frequently Asked Questions
Executive Industry Relevance
Minimally invasive resection of large retrosternal thyroid goiters addresses a critical challenge in endocrine and thoracic surgery by reducing morbidity associated with traditional open approaches. The thoracoscopic-assisted transcervical technique offers a strategic advance for surgical innovation, supporting safer intervention in anatomically complex cases. This approach enhances procedural predictability and may inform future standards for high-risk thyroid resections in biopharma-supported device and procedural development.
Strategic Applications in Biopharma R&D
Early Discovery & Target Validation
- Enables functional assessment of surgical device performance in anatomically constrained environments.
- Supports validation of neuromonitoring technologies for nerve preservation during complex resections.
- Provides a platform for evaluating minimally invasive procedural innovations in preclinical models.
Screening & Assay Development
- Facilitates reproducible evaluation of surgical workflow modifications for morbidity reduction.
- Enables standardized assessment of intraoperative nerve monitoring outputs.
- Supports development of quantitative metrics for postoperative recovery and complication rates.
Translational & Preclinical Research
- Aligns with translational goals by bridging surgical innovation from bench to bedside in endocrine oncology.
- Provides continuity for device and procedural validation across preclinical and clinical settings.
- Supports risk-adjusted advancement of minimally invasive surgical technologies.
Pipeline & Workflow Integration
This technique integrates into the surgical innovation continuum, from device and workflow validation in preclinical models to clinical adoption for complex thyroid resections.
- Discovery Biology: Supports hypothesis testing for nerve preservation and morbidity reduction strategies.
- Screening: Enables reproducible intraoperative monitoring and outcome measurement.
- Analytics: Provides quantitative readouts for nerve function and postoperative recovery.
- Translational Research: Bridges procedural innovation from preclinical validation to clinical implementation.
- Enterprise Reuse: Establishes a reusable framework for evaluating minimally invasive surgical approaches in other anatomical contexts.
Operational & Enterprise Impact
- Scientific Value: Increases predictive confidence in nerve preservation and morbidity outcomes.
- Operational Value: Standardizes minimally invasive workflows and neuromonitoring protocols.
- Strategic Value: Reduces late-stage procedural risk and supports capital-efficient innovation.
- Portfolio Impact: Informs risk-adjusted prioritization of surgical device and procedural development programs.
Implementation Considerations
- Requires advanced thoracoscopic and endocrine surgical expertise.
- Demands access to neuromonitoring instrumentation and thoracoscopic equipment.
- Necessitates cross-team standardization of intraoperative monitoring protocols.
- Adaptation may be limited by goiter size and mediastinal positioning.
- Practical limitations include patient selection and anatomical variability.
