WCLC 2025 - Posters & ePosters-EP.14.25 The Initial Outcome of Single Port Robotic Surgery for Mediastinal Tumors With 16 Cases

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This study presents the initial outcomes of single-port robotic surgery using the da Vinci SP Surgical System for mediastinal tumor resection in 23 patients at Mie University. The da Vinci SP system, which allows camera and instrument deployment through a single small port, aims to minimize invasiveness, reduce scarring and postoperative pain, and overcome technical challenges associated with multi-port and conventional robotic surgeries.<br /><br />Patients ranged from 8 years old to adults, with tumors mostly located in the anterior mediastinum and sizes up to 8.0 cm. Two surgical approaches were used: subxiphoid (91%) and subcostal (9%). Procedures included partial, total, and extended thymectomies as well as mediastinal mass excisions. Median operative time was 128 minutes with minimal blood loss (median 10 g). Postoperative chest drainage lasted about one day, and median hospital stay was five days. No conversions to open thoracotomy or multiple ports were needed.<br /><br />Pathologies included thymomas (52%), thymic cysts, thymic carcinoma, and other rare tumor types. Complications were minimal with no significant bleeding or prolonged recoveries. The approach showed benefits such as less invasiveness, improved visibility and maneuverability in confined spaces, reduced inter-arm collisions, and potentially lower risks of bilateral pneumothorax.<br /><br />Limitations include the small single-center sample size and short follow-up. Challenges noted involve the current lack of automatic suturing and vascular sealing instruments, requiring skilled assistants. The authors plan to continue accumulating cases to assess long-term safety and efficacy and compare this single-port robotic surgery with conventional robotic, video-assisted thoracoscopic, and open surgeries.<br /><br />In conclusion, initial experience indicates that mediastinal tumor resection with the da Vinci SP single-port robotic system is safe, feasible, and yields favorable early postoperative outcomes. Further studies are needed to validate these findings and establish long-term benefits.

Asset Subtitle

Daisuke Ito

Meta Tag

Speaker Daisuke Ito

Topic Mesothelioma, Thymoma, and Other Thoracic Tumors

Keywords

single-port robotic surgery

da Vinci SP Surgical System

mediastinal tumor resection

thymectomy

subxiphoid approach

minimally invasive surgery

mediastinal mass excision

operative outcomes

postoperative recovery

robotic surgical techniques