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권대곤(Dae Gon Kweon),남기현(Gi Hyun Nam),한판암(Pan Am Han) 한국정보과학회 1995 한국정보과학회 학술발표논문집 Vol.22 No.1
지금까지 소프트웨어 테스트 단계에서 결함을 발견하고 수정하여 제거하는 과정을 모델링한 소프트웨어 신뢰도 성장모델이 다양하게 제안되었다. 테스트가 진행되는 과정에서 발견 난이도를 적용한다. 분류된 각 결함의 중요도는 결함 발견율과 소프트웨어 신뢰도에 미치는 영향이 다를 것이다. 본 논문에서는 이러한 관점에서 결함의 중요도에 발견 난이도를 적용한 소프트웨어 신뢰도 성장모델을 제시한다.
갑상선 유두암 환자의 전절제술 후 부갑상선 기능 저하증의 위험 인자
성지영(Ji Young Seong),이초록(Cho Rok Lee),김민지(Min Jhi Kim),김태형(Tae Hyung Kim),이슬기(Seul Gi Lee),최정범(Jung Bum Choi),반은정(Eun Jeong Ban),강상욱(Sang Wook Kang),이잔디(Jan Dee Lee),정종주(Jong Ju Jeong),남기현(Kee Hyun Nam 대한갑상선-내분비외과학회 2016 The Koreran journal of Endocrine Surgery Vol.16 No.3
Purpose: Postoperative hypocalcemia is a common complication of thyroidectomy. This study evaluated the incidence and predisposing risk factors for postoperative permanent hypocalcemia after total thyroidectomy. Methods: There were 1,247 consecutive patients undergoing total thyroidectomy and complete treatment and observation for differentiated thyroid cancer between January 2012 to December 2012 who were enrolled in this study. Patients were divided into two groups, those remaining normalcalcemic (Group I-824 pts) and those who had hypocalcemia requiring treatment (Groups II-423 pts). Group II was subdivided into a transient hypocalcemic group (Group IIA-409 pts) and a permanent hypocalcemic group (Group IIB-14 pts). Results: Female gender, thyroiditis, preserved parathyroid number, lateral lymph node metastasis, RAI treatment, preoperative parathyroid hormone and preoperative vitamin D were significantly associated with the development of postoperative hypocalcemia by multivariate analysis. Comparing patients with transient versus permanent hypocalcemia, tumor size and multiplicity were significantly related to the development of permanent hypocalcemia by multivariate analysis. RAI treatment and parathyroid hormone level on the postoperative third day were significantly related to recovery from transient hypocalcemia to normo-calcemia. Conclusion: Risk factors of postoperative hypocalcemia were associated with preoperative patient factors and advanced thyroid cancer. Advanced thyroid cancer was a risk factor for permanent hypocalcemia. To prevent postoperative hypocalcemia, we should focus on patient condition and need to preserve parathyroid gland more carefully in thyroid surgery.