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김훈엽,박도중,박효진,이혁준,양한광,김우호,이건욱,최국진,Kim Hoon Yub,Park Do Joong,Park Hyo Jin,Lee Hyuk-Joon,Yang Han-Kwang,Kim Woo Ho,Lee Kuhn Uk,Choe Kuk Jin 대한위암학회 2004 대한위암학회지 Vol.4 No.3
Recently, we experienced two advanced gastric cancer (AGC) patients younger than 17 years of age. The first case was a 15-year, 2-month-old male who had suffered from epigastric soreness for 5 weeks. His grandfather died of gastric cancer at 39 years of age. Under the diagnosis of AGC, he underwent a total gastrectomy with D2 lymph node dissection. There was no evidence of distant metastasis. Pathologic examination revealed a 4.5$\times$4 cm, signet ring cell adenocarcinoma with subserosal invasion and with metastasis in 9 of 42 regional lymph nodes (T2bN2M0). The second case was a 17-year, 11-month-old male who had suffered from epigastric pain for 2 years without familial clustering. Under the diagnosis of AGC, he underwent a distal subtotal gastrectomy with D2 lymph node dissection. There was no evidence of distant metastasis. Pathologic examination revealed a 3$\times$2 cm, signet ring cell adenocarcinoma with subserosal invasion and with metastasis in 9 of 45 regional lymph nodes (T2bN2M0). The two patients have been alive without recurrence for 27 months and 4 months, respectively. Even among teenagers, patients with abdominal complaints should be subjected to a thorough examination of the gastrointestinal tract.
김훈엽(Hoon Yub Kim),장명철(Myung Chul Chang),노동영(Dong-Young Noh),윤여규(Yeo-Kyu Youn),오승근(Seung Keun Oh) 대한외과학회 2007 Annals of Surgical Treatment and Research(ASRT) Vol.73 No.2
Purpose: Despite of recent advances in the resolution of computed tomography (CT) and magnetic resonance imaging (MRI), there are different kinds of peri-adrenal retroperitoneal tumors that can hardly be differentiated from adrenal tumor preoperatively. By reviewing certain tumors and their characteristics, we may increase the preoperative diagnostic accuracy and so may perform the proper operation when facing this situation. Methods: We retrospectively reviewed fourteen cases of non-adrenal origin retroperitoneal tumors that were preoperatively diagnosed as adrenal tumors during a seven-year period at Seoul National Universiry Hospital. Results: The fourteen retroperitoneal tumors preoperatively misdiagnosed as adrenal tumors were extra-adrenal ganglioneuroma (6 cases), schwannoma (2 cases), retroperitoneal paraganglioma (1 case), bronchogenic cyst (2 cases), Castleman’s disease (1 case), idiopathic retroperitoneal fibrosis (1 case) and leiomyosarcoma (1 case). All of them were large (>6 ㎝), and most were solid. Conclusion: For the correct preoperative diagnosis and appropriate operation of peri-adrenal retroperitoneal tumors, and especially when the tumors are large and solid, the disease entities mentioned above should be excluded, and the application of additional diagnostic measures such as preoperative fine needle aspiration cytologic examination or biopsy, endoscopic ultrasound (EUS), intraoperative frozen biopsy, laparoscopic ultrasound (LUS), as well as preoperative CT and MRI, should be considered when the diagnosis is not conclusive.
갑상선 결절 환자에서 혈청 갑상선자극호르몬 수치와 고분화 갑상선암과의 연관성에 관한 분석
정성엽,김훈엽,류우상,우상욱,손길수,이재복,배정원,Sung Yup Joung,Hoon Yub Kim,Woo Sang Ryu,Sang Uk Woo,Gil Soo Son,Jae Bok Lee and Jeoung Won Bae 대한갑상선-내분비외과학회 2010 The Koreran journal of Endocrine Surgery Vol.10 No.4
Purpose: This study investigated the effects of serum thyroid-stimulating hormone (TSH) levels in predicting malignancy-associated differentiated thyroid cancer (DTC) and benign thyroid nodules. Methods: Between January 2005 and December 2007, 346 patients underwent thyroid surgery at one hospital. Their records were retrospectively reviewed. Results: Sixty-nine percent (237 of 346) of the patients had DTC. The mean preoperative TSH level was higher than in the malignant group (5 uIU/ml vs 0.4 uIU/ml). The rate of malignancy was the 71% in patients with TSH levels >5 uIU/ml. The TSH level of DTC with metastasis of the lymph node was higher than that with non-metastasis (3.08 uIU/ml vs 2.09 uIU/ml, P<0.01) Conclusion: The likelihood of DTC increases with higher serum TSH concentration. Serum TSH level might be useful in predicting malignant nodular thyroid lesion. (Korean J Endocrine Surg 2010;10:220-223)
갑상선 미세유두암에서 갑상선 주변 조직 침윤(Minimal Extrathyroid Extension)의 임상적 의의
이재복,김훈엽,우상욱,류우상,이정아,손길수,배정원,이유미<SUP>1<.SUP>,Jae Bok Lee,Hoon Yub Kim,Sang-Wook Woo,Woo Sang Ryu,Jung Ah Lee,Gil Soo Son,Jung-Won Bae,and Yu Mi Lee,Ph.D.<SUP>1<.SUP> 대한갑상선-내분비외과학회 2008 The Koreran journal of Endocrine Surgery Vol.8 No.4
Purpose: The prognosis of papillary thyroid carcinoma is determined by such risk factors as old age, male gender, a large tumor size and extrathyroid extension. The aim of this study was to investigate the value of extrathyroid extension for the recurrence of papillary microcarcinoma and its association with the risk factors for papillary thyroid carcinoma. Methods: We retrospectively studied 167 patients with papillary microcarcinoma and who underwent thyroidectomy from Feb. 2003 to Dec. 2008. Papillary microcarcinoma (PTMC) was defined as a tumor smaller than 1 cm and an extrathyroid extension was identified by the pathological findings. Age, gender, extrathyroid extensions, the operative methods, lymph node metastasis and the MACIS score were analyzed by the appropriate statistical methods. Results: Patients with PTMC showed a lower MACIS score, fewer lymph node metastasis and less extrathyroid extension, as compared to the patients with papillary thyroid carcinoma. Total thyroidectomy and selective lymph node dissection were less frequently done in the patients suffering with PTMC. Analysis of the risk factors showed that PTMC had a close relationship with lymph node metastasis, the extent of surgery and multifocal cancer. The disease free survival rate of the patients with PTMC was statistically related with lymph node metastasis, but not with an extrathyroid extension (P=0.001). Conclusion: The patients with PTMC showed less lymph node metastasis and extrathyroid extension as compared to the patients with PTC. Lymph node metastasis of PTMC is an independent factor for disease free survival, but minimal extrathyroid extension is not related with recurrence. PTMC with lymph node metastasis should be regarded as an aggressive large tumor and lymph node dissection should be done. (Korean J Endocrine Surg 2008;8:243-249)
갑상선 전 절제술과 경부 중앙 림프절 절제술 시 하모닉 포커스 (Harmonic Focus) 사용의 안전성과 효용성에 대한 무작위 배정 연구
김지선(Ji Seon Kim),김홍규(Hong Kyu Kim),김훈엽(Hoon Yub Kim) 대한갑상선-내분비외과학회 2017 The Koreran journal of Endocrine Surgery Vol.17 No.1
Purpose: The use of sealing devices such as Harmonic scalpel and Ligasure is increasing steadily in thyroid surgery. The Harmonic Focus (HF) is an ultrasonic device that enables simultaneous vessel sealing and tissue coagulation, designed for open surgery such as thyroidectomy. The aim of this study is to assess the efficiency and safety of HF use in thyroid surgery compared to Conventional Tying (CT). Methods: A prospective study was conducted to compare the efficacy of HF versus CT. We evaluated 50 patients who underwent surgery for thyroid tumor at Korea University Anam Hospital. All patients underwent total thyroidectomy with central neck dissection after being randomly allocated into two groups: HF group and CT group. The differences in surgical outcomes and postoperative complications by device use, i.e. group assignment, were statistically analyzed. Results: There were no differences in number of retrieved lymph nodes (P=0.595), number of resected parathyroid glands (P=0.330), immediate postoperative iPTH (P=0.252), length of hospitalization (P=0.375) between HF group and CT group. However, operative time was shorter in HF group than CT group (106.07±20.92 min vs. 136.54±38.24 min, P=0.046). Postoperative complications of wound infection, seroma, hematoma, chyle leakage, vocal cord palsy, and hypoparathyroidism did not differ between groups. Conclusion: HF is a safe, effective, and time-saving technique; outcomes are comparable with CT. Both intraoperative and postoperative variables were similar between groups. Future larger studies are warranted to further investigate the effect on postoperative complications.
갑상선 수술의 수술 중 신경모니터링의 적용에 관한 최신지견
유지영 ( Ji Young You ),김훈엽 ( Hoon Yub Kim ) 대한갑상선학회 2021 International Journal of Thyroidology Vol.14 No.1
Intraoperative neuromonitoring is a well-established method used to prevent intraoperative nerve damage, and many studies have been performed in thyroid surgery. We introduced the basic concept and practical application of intraoperative neuromonitoring, as well as its standardized techniques and detailed contents. In addition, the contents of this still yet relatively unknown field, such as its application in transoral robotic thyroidectomy and its application to the external branches of the superior laryngeal nerve, were summarized by referring to many previous studies.
갑상선 세침흡인 검체에서 Colorimetric Mutation Detection Method를 이용한 BRAF Mutation검출
정유승(Yoo Seung Chung),최준호(Jun-Ho Choe),이규언(Kyu Eun Lee),박원서(Won Seo Park),김훈엽(Hoon Yub Kim),한원식(Wonshik Han),노동영(Dong-Young Noh),오승근(Seung Keun Oh),윤여규(Yeo-Kyu Youn) 대한외과학회 2008 Annals of Surgical Treatment and Research(ASRT) Vol.74 No.1
Purpose: The detection of papillary thyroid carcinoma (PTC) is increasing these days; however, there is currently no satisfactory definitive preoperative diagnostic method. Fine-needle aspiration cytology (FNAC) is now the most accurate method to diagnose PTC preoperatively. It is known that the specificity of BRAF mutation is high in papillary thyroid carcinoma. Therefore, detection of BRAF mutation using a FNAC slide can be helpful to diagnose PTC preoperatively. Methods: 13 patients with benign disease, 36 patients with PTC and 23 patients with an indeterminate diagnosis as determined histologically on the FNAC slide were evaluated to detect BRAF mutation with using FNAC slides and intraoperative fresh tissue. Results: Mutation was detected using direct sequencing and the colorimetric method. The frequency of BRAF mutation was 86.3% for all the PTC cases. The concordance between the colorimetric method and direct sequencing was 57.1%. During DNA extraction from the FNAC slide, the DNA damage is so severe that direct sequencing is succeeded in only one case. Conclusion: We have to take measures to overcome and prevention DNA damage during extraction. The colorimetric method is not reliable.