PhD Woong Youn Chung MD

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The learning curve for robotic thyroidectomy with central compartment node dissection (CCND) has not been established. We examined the effect of experience of robotic thyroidectomy on a range of perioperative parameters in order to determine the learning curve. The learner surgeon outcomes were compared with those of an experienced surgeon. We conducted a(More)
To use objective and subjective voice function analysis to compare outcomes in patients who had undergone conventional open thyroidectomy or robotic thyroidectomy. The study involved 88 consecutive patients who underwent thyroid surgery between May 2009 and December 2009; 46 patients underwent a conventional open thyroidectomy, and 42 underwent a robotic(More)
Robotic thyroidectomy (RT) has recently emerged as a viable approach to thyroid surgery, resulting in better functional and cosmetic outcomes than afforded by open thyroidectomy (OT). The present multicenter study assessed the perioperative outcomes of RT and compared physician perspectives on the musculoskeletal ergonomic parameters associated with OT,(More)
To determine differences in ultrasonography (US) features suggesting papillary thyroid carcinoma (PTC) between nodules larger than 10 mm (large lesions) and nodules ≤10 mm in diameter (small lesions). We included 1,238 nodules in 1,173 patients that were confirmed through cytology or histopathology between February 2007 and June 2007 in the study. Nodules(More)
This study was designed to evaluate the performance of ultrasonography (US) for the preoperative staging of papillary thyroid carcinoma (PTC) in a large series according to the TNM classification. Preoperative US was performed for the evaluation of primary tumors and lymph node metastasis in 722 consecutive patients with cytologically proven PTC. Three(More)
Recently, early-stage oral cavity cancers are successfully resected via a transoral approach. Nodal metastasis is a crucial factor in determining the survival of oral cavity cancer patients. However, elective neck dissection in earlystage oral cavity cancers is a still controversial procedure. In recent period, in an attempt to hide the cervical scars,(More)
The prevalence of papillary thyroid cancer (PTC) is thought to be related to obesity, which affects the prognosis for PTC patients. However, the mechanisms implicated in the relationship between obesity and PTC is a matter for debate. In this study, we aimed to gain insight into the relationship between obesity and the clinicopathological features of PTC,(More)
Tumor multifocality is frequently observed in papillary thyroid carcinoma (PTC), but its prognostic value is controversial. We investigated the prognostic significance of multifocality in PTCs larger than 1 cm and papillary thyroid microcarcinomas (PTMC). Medical records and pathologic results of 2,309 patients who received thyroidectomy and lymph node(More)
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