http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Oncologic safety of breast-conserving surgery in breast cancer patients under the age of 35
Incheon Kang,Joo Heung Kim,Seho Park,Ho Hur,Hyung Seok Park,Seung Il Kim,Young Up Cho 대한종양외과학회 2017 Korean Journal of Clinical Oncology Vol.13 No.1
Purpose: Breast-conserving surgery (BCS) shows no difference in survival rates compared with total mastectomy. So, BCS is considered standard breast surgery with modified radical mastectomy. But in patients who received BCS, there is a risk of local recurrence in their long term follow up periods. Especially, BCS of young age is controversial regarding oncologic safety because of local recurrence. In this study, we struggle to confirm the oncologic safety of BCS compared with total mastectomy under the age of 35 in South Korea. Methods: All patients who underwent surgery for breast cancer were 5,366 at Severance Hospital, Yonsei University Health System, from January 1981 to April 2008. Of them, patients younger than 35 years old were 547. We excluded patients who received chemotherapy before surgery and included only stage 1 and 2 patients who identified through the pathology after surgery. Finally, we got 367 patients; total mastectomy was performed in 245 and BCS, in 122. We compared clinicopathological characteristics and oncologic outcomes between two groups using SPSS program. Results: In patients received BCS, a local recurrence rate was 7.7% at 5 years and up to 20.3% at 10 years. In patients received total mastectomy, a local recurrence rate was 1.9% over 10 years (P<0.001). However, there was no difference in 5-year and 10-year overall survival rates between two groups (P=0.689). Adjuvant chemotherapy decreased local recurrence rate in BCS patients (P=0.019). Conclusion: So, we concluded that BCS under the age of 35 has oncologic safety with undergoing chemotherapy.
Impact of everolimus on survival after liver transplantation for hepatocellular carcinoma
( Incheon Kang ),( Jae Geun Lee ),( Sung Hoon Choi ),( Hyun Jeong Kim ),( Dai Hoon Han ),( Gi Hong Choi ),( Myoung Soo Kim ),( Jin Sub Choi ),( Soon Il Kim ),( Dong Jin Joo ) 대한간학회 2021 Clinical and Molecular Hepatology(대한간학회지) Vol.27 No.4
Background/Aims: This study aimed to investigate whether everolimus (EVR) affects long-term survival after liver transplantation (LT) in patients with hepatocellular carcinoma (HCC). Methods: The data from 303 consecutive patients with HCC who had undergone LT from January 2012 to July 2018 were retrospectively reviewed. The patients were divided into two groups: 1) patients treated with EVR in combination with calcineurin inhibitors (CNIs) (EVR group; n=114) and 2) patients treated with CNI-based therapy without EVR (non-EVR group; n=189). Time to recurrence (TTR) and overall survival (OS) after propensity score (PS) matching were compared between the groups, and prognostic factors for TTR and OS were evaluated. Results: The EVR group exhibited more aggressive tumor biology than the non-EVR group, such as a higher number of tumors (P=0.003), a higher prevalence of microscopic vascular invasion (P=0.017) and exceeding Milan criteria (P=0.029). Compared with the PS-matched non-EVR group, the PS-matched EVR group had significantly better TTR (P<0.001) and OS (P<0.001). In multivariable analysis, EVR was identified as an independent prognostic factor for TTR (hazard ratio [HR], 0.248; P=0.001) and OS (HR, 0.145; P<0.001). Conclusions: Combined with CNIs, EVR has the potential to prolong long-term survival in patients undergoing LT for HCC. These findings warrant further investigation in a well-designed prospective study. (Clin Mol Hepatol 2021;27:589-602)
VARIOUS CENTROIDS OF QUADRILATERALS WITHOUT SYMMETRY
Incheon Kim,Dong-Soo Kim 충청수학회 2020 충청수학회지 Vol.33 No.4
For a quadrilateral P, we consider the centroid G₀ of the vertices of P, the perimeter centroid G₁ of the edges of P and the centroid G₂ of the interior of P, respectively. It is well known that P satisfies G₀=G₁ or G₀=G₂ if and only if it is a parallelogram. In this paper, we investigate various quadrilaterals satisfying G₁G₂. As a result, we establish some characterization theorems. One of them asserts the existence of convex quadrilaterals satisfying G₁=G₂ without symmetry.