1.Thrombectomy of Superior Mesenteric Artery Occlusion: A case report.
Seock Yeol LEE ; Kang Seock BAEK ; Cheol Woo JEON ; Seung Jin LEE ; Cheol Sae LEE ; Kihl Rho LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2007;40(9):641-644
A 50-year old man was admitted to our hospital because he complained of sudden abdominal pain. Multidetector abdominal CT showed proximal occlusion of the superior mesenteric artery. Emergency open laparotomy and Fogarty thrombectomy were done on admission day and repeat Fogarty thrombectomy and partial resection of the small bowel were done the next day. We report here on a case of superior mesenteric artery occlusion.
Abdominal Pain
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Angiography
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Emergencies
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Humans
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Laparotomy
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Mesenteric Artery, Superior*
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Middle Aged
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Thrombectomy*
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Thrombosis
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Tomography, X-Ray Computed
2.Nuss Procedures using a Transilluminated Introducer.
Seong Jin LEE ; Kang Seok BAEK ; Cheol Woo JEON ; Seock Yeol LEE ; Chol Sae LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2008;41(6):803-806
The Nuss procedure has good cosmetic effects, but it could be cause of bleeding and organ injury during dissection of the anterior mediastinum. We have made an effort to overcome the defects of the traditional method through the anterior mediastinum, thus we developed a transilluminated introducer that made it safer and simpler to operate within a 1 cm incision only. A total of 67 patients underwent the Nuss procedure using the transilluminated introducer. Thirty-six patients underwent the procedure with the transilluminated introducer only (age<14 years). Thirty-one patients had an additional thoracoscopy (age> or =14 years). There were no major complications, such as massive bleeding or organ injury in the thoracic cavity during or after the Nuss procedure. Our findings demonstrated that the anterior mediastium could be dissected simply and safely by the use of a transilluminated introducer during the Nuss procedure without fatal major complications, such as bleeding and organ injury.
Cosmetics
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Funnel Chest
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Hemorrhage
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Humans
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Mediastinum
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Thoracic Cavity
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Thoracic Wall
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Thoracoscopy
3.Xanthoma of the Rib without Hyperlipoproteinemia: A case report.
Seong Jin LEE ; Kang Seok BAEK ; Seock Yeol LEE ; Chol Sae LEE ; Hyun Deuk CHO
The Korean Journal of Thoracic and Cardiovascular Surgery 2010;43(2):232-234
Primary xanthoma of the bone is a rare benign neoplasm, and it is extremely rare to find this in the ribs. It is most commonly reported in soft tissue and it associated with hyperlipoproteinemia. A 54-years-old male who complained of left chest pain had an X-ray taken. It revealed a left 3rd rib tumor. The blood examinations for lipid and protein were normal. A resection was done for tissue examination. The mass was histolopathologically diagnosed as a xanthoma.
Chest Pain
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Humans
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Hyperlipoproteinemias
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Male
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Ribs
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Thoracic Wall
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Xanthomatosis
4.Efficacy and Safety of Regorafenib in Korean Patients with Advanced Gastrointestinal Stromal Tumor after Failure of Imatinib and Sunitinib: A Multicenter Study Based on the Management Access Program.
Myoung Kyun SON ; Min Hee RYU ; Joon Oh PARK ; Seock Ah IM ; Tae Yong KIM ; Su Jin LEE ; Baek Yeol RYOO ; Sook Ryun PARK ; Yoon Koo KANG
Cancer Research and Treatment 2017;49(2):350-357
PURPOSE: The aim of this study was to confirm the efficacy and safety of regorafenib for advanced gastrointestinal stromal tumors (GISTs) reported in the GRID phase III trial in Korean patients. MATERIALS AND METHODS: Fifty-seven Korean patientswith advanced GISTwho experienced both imatinib and sunitinib failure were enrolled in the management access program between December 2012 and November 2013 and treated with regorafenib (160 mg orally once daily in a 3 weeks on/1 week off). RESULTS: None of the patients achieved a complete or partial response while 25 patients (44%) showed stable disease for ≥ 12 weeks. With a median follow-up of 12.7 months (range, 0.2 to 27.6 months), the median progression-free survival and overall survival were 4.5 months (95% confidence interval [CI], 3.8 to 5.3) and 12.9 months (95% CI, 8.1 to 17.7), respectively. Interestingly, 15 patients (26%) experienced an exacerbation of their cancer-related symptoms (abdominal pain in eight and abdominal distension in five) during the rest period for regorafenib, but all were ameliorated upon the resumption of regorafenib. The most common grade 3 or 4 adverse event was a hand-foot skin reaction (25%). The regorafenib dose was reduced in 44 patients (77%) due to toxicity, which manifested mainly as a hand-foot skin reaction (n=31). CONCLUSION: This study confirmed the efficacy and safety of regorafenib for advanced GIST after imatinib and sunitinib failure in Korean patients. Considering the exacerbation of the cancer-related symptoms observed during the rest periods, further exploration of the continuous dosing schedule of regorafenib is warranted in future clinical trials.
Appointments and Schedules
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Disease-Free Survival
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Follow-Up Studies
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Gastrointestinal Stromal Tumors*
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Humans
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Imatinib Mesylate*
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Skin
5.Advanced Properties of Urine Derived Stem Cells Compared to Adipose Tissue Derived Stem Cells in Terms of Cell Proliferation, Immune Modulation and Multi Differentiation.
Hye Suk KANG ; Seock Hwan CHOI ; Bum Soo KIM ; Jae Young CHOI ; Gang Baek PARK ; Tae Gyun KWON ; So Young CHUN
Journal of Korean Medical Science 2015;30(12):1764-1776
Adipose tissue stem cells (ADSCs) would be an attractive autologous cell source. However, ADSCs require invasive procedures, and has potential complications. Recently, urine stem cells (USCs) have been proposed as an alternative stem cell source. In this study, we compared USCs and ADSCs collected from the same patients on stem cell characteristics and capacity to differentiate into various cell lineages to provide a useful guideline for selecting the appropriate type of cell source for use in clinical application. The urine samples were collected via urethral catheterization, and adipose tissue was obtained from subcutaneous fat tissue during elective laparoscopic kidney surgery from the same patient (n = 10). Both cells were plated for primary culture. Cell proliferation, colony formation, cell surface markers, immune modulation, chromosome stability and multi-lineage differentiation were analyzed for each USCs and ADSCs at cell passage 3, 5, and 7. USCs showed high cell proliferation rate, enhanced colony forming ability, strong positive for stem cell markers expression, high efficiency for inhibition of immune cell activation compared to ADSCs at cell passage 3, 5, and 7. In chromosome stability analysis, both cells showed normal karyotype through all passages. In analysis of multi-lineage capability, USCs showed higher myogenic, neurogenic, and endogenic differentiation rate, and lower osteogenic, adipogenic, and chondrogenic differentiation rate compared to ADSCs. Therefore, we expect that USC can be an alternative autologous stem cell source for muscle, neuron and endothelial tissue reconstruction instead of ADSCs.
Adult Stem Cells/*cytology/*immunology/transplantation
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Biomarkers/metabolism
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Cell Differentiation
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Cell Lineage
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Cell Proliferation
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Cell Separation
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Chromosomal Instability
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Colony-Forming Units Assay
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Humans
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Karyotyping
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Multipotent Stem Cells/cytology/immunology/transplantation
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Subcutaneous Fat, Abdominal/*cytology
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Transplantation, Autologous
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Urine/*cytology
6.Prognostic Value of Axillary Nodal Ratio after Neoadjuvant Chemotherapy of Doxorubicin/Cyclophosphamide Followed by Docetaxel in Breast Cancer: A Multicenter Retrospective Cohort Study.
Se Hyun KIM ; Kyung Hae JUNG ; Tae Yong KIM ; Seock Ah IM ; In Sil CHOI ; Yee Soo CHAE ; Sun Kyung BAEK ; Seok Yun KANG ; Sarah PARK ; In Hae PARK ; Keun Seok LEE ; Yoon Ji CHOI ; Soohyeon LEE ; Joo Hyuk SOHN ; Yeon Hee PARK ; Young Hyuck IM ; Jin Hee AHN ; Sung Bae KIM ; Jee Hyun KIM
Cancer Research and Treatment 2016;48(4):1373-1381
PURPOSE: The purpose of this study is to investigate the prognostic value of lymph node (LN) ratio (LNR) in patients with breast cancer after neoadjuvant chemotherapy. MATERIALS AND METHODS: This retrospective analysis is based on the data of 814 patientswith stage II/III breast cancer treated with four cycles of doxorubicin/cyclophosphamide followed by four cycles of docetaxel before surgery. We evaluated the clinical significance of LNR (3 categories: low 0-0.20 vs. intermediate 0.21-0.65 vs. high 0.66-1.00) using a Cox proportional regression model. RESULTS: A total of 799 patients underwent breast surgery. Pathologic complete response (pCR, ypT0/isN0) was achieved in 129 patients (16.1%) (hormone receptor [HR] +/human epidermal growth factor receptor 2 [HER2] –, 34/373 [9.1%]; HER2+, 45/210 [21.4%]; triple negative breast cancer, 50/216 [23.1%]). The mean numbers of involved LN and retrieved LN were 2.70 (range, 0 to 42) and 13.98 (range, 1 to 64), respectively. The mean LNR was 0.17 (low, 574 [71.8%]; intermediate, 170 [21.3%]; high, 55 [6.9%]). In univariate analysis, LNR showed significant association with a worse relapse-free survival (3-year relapse-free survival rate 84.8% in low vs. 66.2% in intermediate vs. 54.3% in high; p < 0.001, log-rank test). In multivariate analysis, LNR did not show significant association with recurrence after adjusting for other clinical factors (age, histologic grade, subtype, ypT stage, ypN stage, lymphatic or vascular invasion, and pCR). In subgroup analysis, the LNR system had good prognostic value in HR+/HER2–subtype. CONCLUSION: LNR is not superior to ypN stage in predicting clinical outcome of breast cancer after neoadjuvant chemotherapy. However, the prognostic value of the LNR system in HR+/HER2–patients is notable and worthy of further investigation.
Breast Neoplasms*
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Breast*
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Cohort Studies*
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Drug Therapy*
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Humans
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Lymph Node Excision
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Lymph Nodes
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Multivariate Analysis
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Neoadjuvant Therapy
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Prognosis
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Receptor, Epidermal Growth Factor
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Recurrence
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Retrospective Studies*
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Survival Rate
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Triple Negative Breast Neoplasms