Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Single Surgeon Experience of 500 Cases with the Robotic Bilateral Axillary Breast Approach (BABA) for Thyroid Surgery using the da-Vinci Xi System

Version 1 : Received: 29 June 2021 / Approved: 1 July 2021 / Online: 1 July 2021 (11:30:12 CEST)

How to cite: Choi, Y.; Shin, W.Y.; Yi, J.W. Single Surgeon Experience of 500 Cases with the Robotic Bilateral Axillary Breast Approach (BABA) for Thyroid Surgery using the da-Vinci Xi System. Preprints 2021, 2021070022 (doi: 10.20944/preprints202107.0022.v1). Choi, Y.; Shin, W.Y.; Yi, J.W. Single Surgeon Experience of 500 Cases with the Robotic Bilateral Axillary Breast Approach (BABA) for Thyroid Surgery using the da-Vinci Xi System. Preprints 2021, 2021070022 (doi: 10.20944/preprints202107.0022.v1).

Abstract

Objectives: Robotic bilateral axillary breast approach (BABA) thyroid surgery began in 2008 and is now one of the most widely used remote-access thyroid surgeries worldwide. This study aimed to analyze the results of 500 robotic BABA thyroid surgeries performed in a single institution in Korea compared with open thyroid surgery. Methods: From December 2018 to March 2020, 502 robotic BABA thyroidectomies (RTs) and 531 conventional open thyroidectomies (OTs) were performed in our institution by a single endocrine surgeon. We retrospectively reviewed patient medical records and performed a comparative analysis of OT and RT. Results: The RT group was younger (43.41±11.41 versus 54.28±13.41 years, p<0.001) and had a higher proportion of females (84.3% versus 69.3%, p<0.001), a lower BMI (24.66±3.97 versus 25.83±4.07 kg/m2), a higher proportion of lobectomies (52.6% versus 45.2%) and a lower proportion of lateral neck dissections (3.4% versus 10.0%, p<0.001). The RT group had a lnger operation time (145.33±40.80 versus 93.39±43.55 minutes, p<0.001) and higher surgical cost. Although the OT group had a larger tumor size and higher proportion of extrathyroidal extension, the numbers of retrieved lymph nodes were not significantly different between the two groups. Additionally, there was no difference in the stimulated thyroglobulin level before radioactive iodine therapy (7.01±35.73 versus 8.39±58.77, p=0.782). The rates of transient vocal cord palsy and transient hypoparathyroidism were significantly lower in the RT group, and those of scar-related complications were higher in the OT group. Conclusion: Robotic BABA thyroid surgery has advantages not only in better cosmetic outcomes but also in lower rates of vocal cord palsy and hypoparathyroidism, with comparable lymph node retrieval and serum thyroglobulin levels.

Keywords

thyroid neoplasm; thyroidectomy; robotic surgical procedures

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