The contributing factors to surgical outcomes of Transaxillary Robotic thyroidectomy in papillary thyroid carcinoma patients

Haiyoung Son, MD, Jung Woo Kim, MD, Seulkee Park, MD, Cho Rok Lee, MD, Sohee Lee, Sang-Wook Kang, MD, Jong Ju Jeong, MD, Kee-Hyun Nam, MD

Yonsei University Health System

Introduction
Robotic systems have facilitated safe and meticulous thyroidectomy with outstanding cosmesis. The aim of this study is to determine contributing factors which can affect on surgical outcomes of robotic thyroidectomy in papillary thyroid carcinoma(PTC) patients.

Method
We reviewed total 281 PTC patients who underwent robotic total thyroidectomy at YUHS, Korea, between January, 2011 and May, 2012. The correlation of the surgical outcomes with clinicopathologic factors (sex, BMI(kg/m2), coexistent thyroiditis, tumor size, T stage, thyroid gland weight, thyroglobulin and microsomal Ab titer) was assessed using linear and logistric regression analysis by SAS(version 9.2, SAS Inc., Cary, NC, USA).

Result
In regard of surgical outcomes, the total operation time is longer in male gender. BMI shows a positive correlation with console time. The coexistence of thyroiditis, weight of thyroid gland and titer of microsomal Ab show a positive correlation between total operation time, console time and bleeding amount. The maximal size of tumor and T stage shows no significant correlation with surgical outcomes.
In terms of postoperative complication, male gender shows higher rate of hypocalcemia.
The coexistence of thyroiditis and microsomal Ab titer have a positive correlation with the rate of hypocalcemia.

Conclusion
According to presented data, robotic thyroidectomy should be approached carefully in cases of male gender, higher BMI and large thyroid gland combined thyroiditis.

Session: Poster Presentation

Program Number: P649