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Park I. Ethical Considerations and Adverse Events in Cyanoacrylate Embolization for Non-Saphenous Veins: A Case Report. Vasc Specialist Int 2024; 40:6. [PMID: 38433505 PMCID: PMC10910212 DOI: 10.5758/vsi.230102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/02/2024] [Accepted: 01/26/2024] [Indexed: 03/05/2024] Open
Abstract
The cyanoacrylate embolization (CAE) technique for chronic venous disease treatment is less painful and leads to a faster recovery than conventional endovenous thermal treatment. According to the instructions for use (IFU) of the VenaSeal closure system (Medtronic), a representative CAE product, it has only been approved for treating saphenous veins, not non-saphenous veins. Here, we report a case of ignoring the VenaSeal IFU for treating testicular pain using CAE for non-saphenous veins within the abdominal wall, which is a baseless and non-scientific approach nearing malpractice. Hence, it is imperative for physicians to rigorously adhere to the IFU and abstain from experimenting with new treatment methods solely based on personal experience.
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Son HJ, Bae S, Cho K, Park I, Kim J, Han H, Kim EO, Jung J, Kim SH, Lee SO. Impact of carbapenem-targeted antimicrobial stewardship interventions: an interrupted time-series analysis. J Hosp Infect 2023; 140:132-138. [PMID: 37544365 DOI: 10.1016/j.jhin.2023.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND The development of carbapenem-resistant Gram-negative bacilli (CR-GNB) is largely favoured by indiscriminate and prolonged carbapenem use, which is a significant contributing factor. AIM To evaluate the impact of two carbapenem antibiotic stewardship programme interventions on both carbapenem prescriptions and the clinical isolation rates of CR-GNBs, using interrupted time-series analysis. METHODS A time-series analysis was performed using data for carbapenem usage from a tertiary hospital in South Korea from January 2017 to July 2022. Two carbapenem antibiotic stewardship programme interventions were implemented sequentially: (i) a prospective audit and feedback (PAF) from November 2018 to April 2020 (intervention 1), and (ii) preauthorization from May 2020 to August 2020 (intervention 2). Monthly carbapenem usage and incidence of CR-GNB before and after each intervention were compared using an autoregressive integrated moving average model. FINDINGS Implementation of PAF resulted in a significant reduction in carbapenem consumption, followed by an additional decrease after the preauthorization was implemented. The incidence of carbapenem-resistant Escherichia coli and Klebsiella pneumoniae increased after intervention 1, but there was a significant change from an increasing trend to a stationary trend after intervention 2. The incidence of carbapenem-resistant Pseudomonas aeruginosa, which had increased during the baseline period, became stationary after intervention 1. A significant decrease was observed in the incidence of carbapenem-resistant Acinetobacter baumannii during the implementation of intervention 1 and 2. CONCLUSION This study emphasizes the importance of adopting comprehensive antibiotic management and rigorous infection control to prevent infections caused by antibiotic-resistant bacteria.
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Affiliation(s)
- H-J Son
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Department of Infectious Diseases, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu, South Korea
| | - S Bae
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Antibiotic Support Team, Asan Medical Center, Seoul, South Korea
| | - K Cho
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Antibiotic Support Team, Asan Medical Center, Seoul, South Korea
| | - I Park
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Antibiotic Support Team, Asan Medical Center, Seoul, South Korea
| | - J Kim
- Department of Pharmacy, Asan Medical Center, Seoul, South Korea
| | - H Han
- Department of Pharmacy, Asan Medical Center, Seoul, South Korea
| | - E O Kim
- Office for Infection Control, Asan Medical Center, Seoul, South Korea
| | - J Jung
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Office for Infection Control, Asan Medical Center, Seoul, South Korea
| | - S-H Kim
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Office for Infection Control, Asan Medical Center, Seoul, South Korea
| | - S-O Lee
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Antibiotic Support Team, Asan Medical Center, Seoul, South Korea.
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3
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Goo D, Park I, Nam H, Lee Y, Sawall J, Smith AH, Rehberger TG, Li C, Lillehoj HS. Collagen adhesin protein and necrotic enteritis B-like toxin as biomarkers for early diagnosis of necrotic enteritis in commercial broiler chickens. Poult Sci 2023; 102:102647. [PMID: 37060834 PMCID: PMC10139936 DOI: 10.1016/j.psj.2023.102647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Mouse monoclonal antibodies (mAbs) reactive with Clostridium perfringens collagen adhesin protein (CNA) and necrotic enteritis B-like toxin (NetB) were developed. The best capture/detection mAb pairs for CNA and NetB were selected based on their affinity and specificity to develop sandwich enzyme-linked immunosorbent assays (ELISAs) to detect CNA and NetB proteins, respectively, in jejunal digesta samples from commercial broiler farms in the United States. Prior to the analysis of samples from commercial broiler flocks, the specificity and sensitivity of the CNA and NetB ELISAs were validated using sera, jejunal digesta, and fecal samples from chickens coinfected with Eimeria maxima and CNA+/NetB+C. perfringens in an animal model of necrotic enteritis (NE). Subsequently, a total of 251 field samples were collected from 74 commercial poultry farms. Among these, 18 samples were from 6 broiler farms that used certified organics (CO), and 155 samples were from 42 farms with nonantibiotics (NA). In jejunal digesta samples, CNA levels ranged from 0.02 to 0.59 ng/mL and NetB levels ranged from 0.09 to 1.91 ng/mL. CNA and NetB levels showed a positive correlation with each other (Pearson correlation coefficient r = 0.772, P < 0.001). CNA and NetB levels in jejunal digesta were significantly decreased in CO farms compared with those from NA farms (P < 0.001). In conclusion, these new C. perfringens antigen-specific sandwich ELISAs offer a sensitive and specific means to detect C. perfringens CNA and NetB proteins as biomarkers of early NE occurrence in field samples from commercial broiler chickens.
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Affiliation(s)
- D Goo
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA; Department of Poultry Science, University of Georgia, Athens, GA, USA
| | - I Park
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - H Nam
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - Y Lee
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - J Sawall
- Arm & Hammer Animal and Food Production, Waukesha, WI, USA
| | - A H Smith
- Arm & Hammer Animal and Food Production, Waukesha, WI, USA
| | - T G Rehberger
- Arm & Hammer Animal and Food Production, Waukesha, WI, USA
| | - C Li
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - H S Lillehoj
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA.
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Park I, Kwon J, Park S. Introduction of a New Device Using Impedance Controlled Radiofrequency Ablation (IC-RFA) Technique for the Treatment of Chronic Venous Disease. Phlebology 2022. [DOI: 10.37923/phle.2022.20.2.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Crespo E, Nosalski R, Park I, Goddard M, MacDonald L, McBride MW, Monaco C, Maffia P, Otto T, Guzik T. Single cell atlas of cd45+ cells in angiotensin II-induced hypertension. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Hypertension has been recently identified as an inflammatory disease. Immune cell infiltration is a characteristic feature in the vasculature and the kidneys in experimental hypertension, but the unique nature of such inflammatory infiltrates has not yet been comprehensively characterised.
Accordingly, we aimed to provide in-depth characteristics of immune cells in the vasculature and the kidneys in experimental hypertension.
To achieve this, we used single-cell RNA-sequencing of leukocytes (CD45+ cells were sorted) using the 10x Genomics platform in the aortas and the kidneys of male 12-week-old C57BL/6J mice (n=16–17/group) upon AngII (490 ng/min/kg) or sham buffer 14-day infusion, using osmotic minipumps. Samples were pooled to analyse three independent replicates. Bioinformatics analysis used Seurat/R to identify immune cell subpopulations and characterise differentially expressed genes (DEGs), pathways, and interactions signatures.
Ang II infusion increases the total number of CD45+ leukocytes in the aorta (346.7±89.1 vs. 1210±214.3; p=0,048), while in the kidneys, this was much less pronounced (1.1±0.5 fold vs. sham). Fifteen leukocyte populations/clusters were identified in the aorta and kidney based on their unique markers. In the aorta, shifts in numerous populations were evident, with the most significant differences in tissue-resident macrophages and activated tissue-resident macrophages, monocyte-derived dendritic cells and NK cells (Figure 1). Kidneys did not display such profound changes. The transcriptomic profile analysis showed 767 significant DEGs in the aorta and only 35 in the kidney. CellChat analysis also indicated more robust interactions between the immune cells in the aorta than in kidneys. These included Ifitm1, Apoe, Il1b, and C1q a/b/c, which were shared between aorta and kidney and may play an immunoregulatory role, affecting smooth muscle cell proliferation and arterial vascular remodelling. Top up-regulated leukocyte genes in the aorta included Ccl8, Ccl3, Cxcl2, Lyz2, and Spp1, while in the kidney, Cd74, Cst3, Fos, Fcer1g, Tyrobp, and Ccl4. GO pathway signatures of aortic leukocyte DEGs revealed pathways related to leukocyte migration, cytokine production, T cell activation, and leukocyte activation and adhesion. Cell-specific analysis showed that macrophage subpopulations most strongly increased in Ang II-induced hypertension displayed the most pronounced changes in the transcriptome profiles and cell-cell interactions.
Comprehensive single-cell RNA sequencing identifies tissue-resident macrophages, monocyte-derived dendritic cells, and NK cells as most affected leukocyte subpopulations in hypertensive vasculature. Differentially expressed genes support the role of these cells in vascular remodelling and propagation of inflammation, further supporting the identification of these cells as potential future targets for therapeutic interventions in hypertension.
Funding Acknowledgement
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): European Research Council
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Affiliation(s)
- E Crespo
- University of Glasgow , Glasgow , United Kingdom
| | - R Nosalski
- University of Glasgow , Glasgow , United Kingdom
| | - I Park
- Kennedy Institute of Rheumatology , Oxford , United Kingdom
| | - M Goddard
- Kennedy Institute of Rheumatology , Oxford , United Kingdom
| | - L MacDonald
- University of Glasgow , Glasgow , United Kingdom
| | - M W McBride
- University of Glasgow , Glasgow , United Kingdom
| | - C Monaco
- Kennedy Institute of Rheumatology , Oxford , United Kingdom
| | - P Maffia
- University of Glasgow , Glasgow , United Kingdom
| | - T Otto
- University of Glasgow , Glasgow , United Kingdom
| | - T Guzik
- University of Glasgow , Glasgow , United Kingdom
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Cha Y, Park M, Park I, Kim J. 311P Differences in stromal component of chordoma are associated with contrast enhancement in MRI and differential gene expression in RNA sequencing. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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7
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Kim T, Park I. W029 Equations to estimate creatinine excretion rate (CER) modified for Korean population. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Park I, Keam B, Kim M, Yoon S, Lee J, Park K, Seo J. W120 Genotypic and phenotypic characteristics of hereditary leiomyomatosis and renal cell cancer syndrome in Korean patients. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kwonoh P, Park I, Kim J, Shin S, Lee H, Lee J. Effectiveness of docetaxel addition to androgen deprivation therapy for metastatic hormone-sensitive prostate cancer in real world practice. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03137-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Park J, Park I, Hwang J, Bae W, Lee G, Kim L, Choi Y, Jung H, Kim M, Hong S, Lee H, Yu E, Lee A, Park Y, Chae Y. P21.02 Real-World Concordance Between Tumor Mutational Burden From Blood and Tissue in Lung Cancer and Other Cancers. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Im SA, Park I, Sohn J, Im YH, Lee S, Chang HK, Macharia H, Sun G, Lamour F, Oh DY. 284P Trastuzumab emtansine (T-DM1) in Asian patients with previously treated HER2-positive locally advanced (LA) or metastatic breast cancer (MBC): Data from the phase III EMILIA study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Seo JW, Park H, Kim D, Lee S, Koh YG, Kim JY, Park I, Lee W. In Vivo Animal Study of a Highly Viscous N-butyl Cyanoacrylate Medical Adhesive for Intravenous Embolization. Materials (Basel) 2021; 14:ma14133527. [PMID: 34202769 PMCID: PMC8269526 DOI: 10.3390/ma14133527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/10/2021] [Accepted: 06/17/2021] [Indexed: 11/16/2022]
Abstract
N-butyl cyanoacrylate (NBCA) is a liquid monomer that undergoes an exothermic polymerization reaction to form a solid upon initiation with hydroxyl anions. Recently, EGpresto, a highly viscous NBCA-based adhesive, has been developed for vascular-occlusion purposes. In this study, we investigated the heat of polymerization of EGpresto and compared the results with those of a low-viscosity NBCA glue. Results show that EGpresto exhibited a lower heat of polymerization (64 ± 7 °C vs. 34 ± 1 °C). This was due to its high viscosity, which resulted in a delayed polymerization time. To investigate the efficacy and safety of EGpresto for intravenous embolization, a 14 d in vivo animal test was conducted using three pigs. Five cc of EGpresto was injected into the epigastric vein of each animal. Complete postoperative vein occlusion was confirmed at 7 and 14 d by ultrasonographic visualization. After the animals were sacrificed, the operated and unoperated veins were exposed, and the injected adhesive was found without migration. During the histology, the injected adhesive was not found in the inner or outer vein walls, and the immune reactions seemed to be the only foreign-body reaction, showing that EGpresto is a non-toxic and safe intravascular embolic agent.
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Affiliation(s)
- Jae-Won Seo
- ENGAIN Co. Ltd., 700, Daewangpangyo-ro, Bundang-gu, Seongnam 13488, Gyeonggi-do, Korea; (J.-W.S.); (H.P.); (D.K.); (S.L.); (Y.G.K.)
| | - Habeen Park
- ENGAIN Co. Ltd., 700, Daewangpangyo-ro, Bundang-gu, Seongnam 13488, Gyeonggi-do, Korea; (J.-W.S.); (H.P.); (D.K.); (S.L.); (Y.G.K.)
- Department of Chemistry, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea
| | - Dogeun Kim
- ENGAIN Co. Ltd., 700, Daewangpangyo-ro, Bundang-gu, Seongnam 13488, Gyeonggi-do, Korea; (J.-W.S.); (H.P.); (D.K.); (S.L.); (Y.G.K.)
| | - Seoyun Lee
- ENGAIN Co. Ltd., 700, Daewangpangyo-ro, Bundang-gu, Seongnam 13488, Gyeonggi-do, Korea; (J.-W.S.); (H.P.); (D.K.); (S.L.); (Y.G.K.)
| | - Young Gook Koh
- ENGAIN Co. Ltd., 700, Daewangpangyo-ro, Bundang-gu, Seongnam 13488, Gyeonggi-do, Korea; (J.-W.S.); (H.P.); (D.K.); (S.L.); (Y.G.K.)
| | - Jang Yong Kim
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Insoo Park
- Charm Vascular Clinic, 1814 Nambu-sunhwan-ro, Gwanak-gu, Seoul 08787, Korea;
| | - Wonmok Lee
- ENGAIN Co. Ltd., 700, Daewangpangyo-ro, Bundang-gu, Seongnam 13488, Gyeonggi-do, Korea; (J.-W.S.); (H.P.); (D.K.); (S.L.); (Y.G.K.)
- Department of Chemistry, Sejong University, 209, Neungdong-ro, Gwangjin-gu, Seoul 05006, Korea
- Correspondence: ; Tel.: +82-10-4914-3598
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Song Y, Lim J, Lim T, Im K, Kim N, Nam Y, Jeon Y, Ko H, Park I, Shin J, Cho S. Human mesenchymal stem cells derived from umbilical cord and bone marrow exert immunomodulatory effects in different mechanisms. Cytotherapy 2021. [DOI: 10.1016/s1465324921003455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Park I. Using a Syringe Pump during Mechanochemical Ablation Is Not Mandatory, but It Is Easy to Control. Vasc Specialist Int 2020; 36:273-274. [PMID: 33408295 PMCID: PMC7790688 DOI: 10.5758/vsi.200068.r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Park I, Park SC. Comparison of Short-Term Outcomes Between Endovenous 1,940-nm Laser Ablation and Radiofrequency Ablation for Incompetent Saphenous Veins. Front Surg 2020; 7:620034. [PMID: 33363201 PMCID: PMC7759544 DOI: 10.3389/fsurg.2020.620034] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 11/23/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Radiofrequency ablation (RFA) has shown faster recovery and lower pain scores compared to Endovenous laser ablation (EVLA) for treatment of varicose veins. However, a comparison of 1,940-nm EVLA and RFA has not been reported. This study compared short-term outcomes using 1,940-nm EVLA and RFA for varicose veins. Methods: Between April 2018 and June 2018, 43 patients (83 incompetent saphenous veins) were treated with 1,940-nm EVLA and 37 patients (64 incompetent saphenous veins) with RFA. Follow-up duplex was checked at 1 month and 3 months. Results: Baseline characteristics showed no significant differences between both groups except for age. Pain scores at 6 h, and at 1, 10, and 30 days after treatment showed no differences. Complications and time to return to normal activity showed no differences. The 100% closure rate was checked in both groups at 1 month and 3 months follow-up. Conclusion: Short-term outcomes showed no significant differences between 1,940-nm EVLA and RFA treatment.
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Affiliation(s)
- Insoo Park
- Charm Vascular Clinic, Seoul, South Korea
| | - Sun-Cheol Park
- Division of Vascular and Transplant Surgery, Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Autry AW, Park I, Kline C, Chen HY, Gordon JW, Raber S, Hoffman C, Kim Y, Okamoto K, Vigneron DB, Lupo JM, Prados M, Li Y, Xu D, Mueller S. Pilot Study of Hyperpolarized 13C Metabolic Imaging in Pediatric Patients with Diffuse Intrinsic Pontine Glioma and Other CNS Cancers. AJNR Am J Neuroradiol 2020; 42:178-184. [PMID: 33272950 DOI: 10.3174/ajnr.a6937] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/19/2020] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND PURPOSE Pediatric CNS tumors commonly present challenges for radiographic interpretation on conventional MR imaging. This study sought to investigate the safety and tolerability of hyperpolarized carbon-13 (HP-13C) metabolic imaging in pediatric patients with brain tumors. MATERIALS AND METHODS Pediatric patients 3 to 18 years of age who were previously diagnosed with a brain tumor and could undergo MR imaging without sedation were eligible to enroll in this safety study of HP [1-13C]pyruvate. Participants received a one-time injection of HP [1-13C]pyruvate and were imaged using dynamic HP-13C MR imaging. We assessed 2 dose levels: 0.34 mL/kg and the highest tolerated adult dose of 0.43 mL/kg. Participants were monitored throughout imaging and for 60 minutes postinjection, including pre- and postinjection electrocardiograms and vital sign measurements. RESULTS Between February 2017 and July 2019, ten participants (9 males; median age, 14 years; range, 10-17 years) were enrolled, of whom 6 completed injection of HP [1-13C]pyruvate and dynamic HP-13C MR imaging. Four participants failed to undergo HP-13C MR imaging due to technical failures related to generating HP [1-13C]pyruvate or MR imaging operability. HP [1-13C]pyruvate was well-tolerated in all participants who completed the study, with no dose-limiting toxicities or adverse events observed at either 0.34 (n = 3) or 0.43 (n = 3) mL/kg. HP [1-13C]pyruvate demonstrated characteristic conversion to [1-13C]lactate and [13C]bicarbonate in the brain. Due to poor accrual, the study was closed after only 3 participants were enrolled at the highest dose level. CONCLUSIONS Dynamic HP-13C MR imaging was safely performed in 6 pediatric patients with CNS tumors and demonstrated HP [1-13C]pyruvate brain metabolism.
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Affiliation(s)
- A W Autry
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - I Park
- Department of Radiology (I.P.), Chonnam National University College of Medicine and Hospital, Gwangju, Korea
| | - C Kline
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics.,Department of Neurology (C.K., S.M.)
| | - H-Y Chen
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - J W Gordon
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - S Raber
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics
| | - C Hoffman
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics
| | - Y Kim
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - K Okamoto
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - D B Vigneron
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.).,Bioengineering and Therapeutic Sciences (D.B.V.).,Neurological Surgery (D.B.V., M.P., S.M.).,UCSF/UC Berkeley Joint Graduate Group in Bioengineering (D.B.V., J.M.L., D.X.), University of California, San Francisco, San Francisco, California
| | - J M Lupo
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.).,UCSF/UC Berkeley Joint Graduate Group in Bioengineering (D.B.V., J.M.L., D.X.), University of California, San Francisco, San Francisco, California
| | - M Prados
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics.,Neurological Surgery (D.B.V., M.P., S.M.)
| | - Y Li
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - D Xu
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.) .,UCSF/UC Berkeley Joint Graduate Group in Bioengineering (D.B.V., J.M.L., D.X.), University of California, San Francisco, San Francisco, California
| | - S Mueller
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics.,Department of Neurology (C.K., S.M.).,Neurological Surgery (D.B.V., M.P., S.M.)
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Park I, Kim D. Automatic Sclerosant Injection Technique of Mechanochemical Ablation with ClariVein Using a Syringe Pump for the Treatment of Varicose Veins. Vasc Specialist Int 2020; 36:198-200. [PMID: 32990257 PMCID: PMC7531294 DOI: 10.5758/vsi.200053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 11/30/2022] Open
Abstract
Mechanochemical ablation (MOCA) is a non-thermal, non-tumescent technique for the treatment of incompetent saphenous vein. It is sometimes difficult to maintain consistency when simultaneously implementing wire rotation, sclerosant injection, and wire pullback. Here, we report a simple technique for achieving constant injection during MOCA with the help of a syringe pump; thus, the operator can focus on wire pullback only with convenience and consistency.
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18
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Park I, Kim JY, Lee H, Park G, Park J, Hwang H, Yun S, Ohe H, Hong KP, Park JK, Jang JH, Yun SS. Draft Revision of Clinical Practice Guidelines for Varicose Veins -Treatment-. Phlebology 2020. [DOI: 10.37923/phle.2020.18.2.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Jang Yong Kim
- Division of Vascular and Transplant Surgery, Department of Surgery, The Catholic University of Korea, Seoul St. Mary’s Hospital, Seoul, Korea
| | - Hogyun Lee
- Division of Vascular and Transplant Surgery, Department of Surgery, Chonnam National University Hospital, Gwangju, Korea
| | - Geunmyeong Park
- Division of Vascular and Transplant Surgery, Department of Surgery, Inha University Hospital, Inchon, Korea
| | - Junho Park
- Happy Varicose Vein Clinic, Seoul, Korea
| | - Hongpil Hwang
- Division of Vascular and Transplant Surgery, Department of Surgery, Jeonbuk National University Hospital, Jeonju, Korea
| | - Sangchul Yun
- Department of Surgery, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Haengjin Ohe
- Division of Vascular and Transplant, Department of Surgery, Inje University Seoul Paik Hospital, Seoul, Korea
| | - Ki-Pyo Hong
- Department of Thoracic and Cardiovascular Surgery, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Jong Kwon Park
- Division of Vascular and Transplant, Department of Surgery, Inje University Haeundae Paik Hospital, Busan, Korea
| | | | - Sang Seob Yun
- Division of Vascular and Transplant Surgery, Department of Surgery, The Catholic University of Korea, Seoul St. Mary’s Hospital, Seoul, Korea
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Park I. Shall we focus on the additives of glue for phlebitis-like abnormal reaction? J Vasc Surg Venous Lymphat Disord 2020; 8:697-698. [DOI: 10.1016/j.jvsv.2020.01.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 01/11/2020] [Indexed: 10/24/2022]
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20
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McCulloch AT, Park I, Wright DL, Buchanan JJ. Off-line learning in a rhythmic bimanual task: early feedback dependency is reduced over wakefulness. Psychol Res 2020; 85:1503-1514. [PMID: 32367224 DOI: 10.1007/s00426-020-01347-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 04/17/2020] [Indexed: 10/24/2022]
Abstract
Research has supported two distinct forms of motor skill consolidation that can occur between practice sessions: (1) off-line learning, and (2) memory stabilization. Off-line learning describes performance improvement between practice sessions that is above the gain observed at the end of practice, while memory stabilization describes a gain in performance that is maintained between practice sessions. This study used a Lissajous plot to provide concurrent feedback to train participants to produce a 90° relative phase between the index fingers (flexion/extension motion). Significant improvements in performance emerged after ten trials (5 min) of practice. At the end of training, participants were divided into two delay interval groups before retesting, 2-h and 6-h. The retesting session started with participants performing an interference task (10 trials, 5 min) that required training on a 45° relative phase between the fingers with concurrent feedback from the Lissajous plot. When training with the interference task was completed participants were retested with the 90° relative phase without the Lissajous plot feedback. In the retest of the 90° pattern, a performance loss was found in the 2-h delay group, whereas the 6-h delay group maintained the end of practice performance level. Maintenance of the same level of performance without the Lissajous plot represents memory stabilization of the initially trained 90° pattern. The findings are discussed within the context of current positions regarding procedural consolidation and the coordination dynamics framework wherein action and perception are linked through the informational nature of relative phase.
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Affiliation(s)
- A T McCulloch
- Department of Health and Kinesiology, Perception-Action Dynamics Lab, Texas A&M University, College Station, TX, USA
| | - I Park
- Department of Health and Kinesiology, Perception-Action Dynamics Lab, Texas A&M University, College Station, TX, USA
| | - D L Wright
- Department of Health and Kinesiology, Perception-Action Dynamics Lab, Texas A&M University, College Station, TX, USA
| | - John J Buchanan
- Department of Health and Kinesiology, Perception-Action Dynamics Lab, Texas A&M University, College Station, TX, USA.
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21
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Oh YS, Lee J, Choi DY, Lee H, Kang K, Yoo S, Park I, Sung HJ. Selective multi-nanosoldering for fabrication of advanced solution-processed micro/nanoscale metal grid structures. Sci Rep 2020; 10:6782. [PMID: 32321964 PMCID: PMC7176656 DOI: 10.1038/s41598-020-63695-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 03/29/2020] [Indexed: 11/16/2022] Open
Abstract
Solution-processed metal grid transparent conductors with low sheet resistance, high optical transmittance and good mechanical flexibility have great potential for use in flexible optoelectronic devices. However, there are still remaining challenges to improve optoelectrical properties and electromechanical stability of the metallic structures due to random loose packings of nanoparticles and the existence of many pores. Here we introduce a selective multi-nanosoldering method to generate robust metallic layers on the thin metal grid structures (< a thickness of 200 nm), which are generated via self-pining assisted direct inking of silver ions. The selective multi-nanosoldering leads to lowering the sheet resistance of the metal grid transparent conductors, while keeping the optical transmittance constant. Also, it reinforces the electromechanical stability of flexible metal grid transparent conductors against a small bending radius or a repeated loading. Finally, organic light-emitting diodes based on the flexible metal grid transparent conductors are demonstrated. Our approach can open a new route to enhance the functionality of metallic structures fabricated using a variety of solution-processed metal patterning methods for next-generation optoelectronic and micro/nanoelectronic applications.
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Affiliation(s)
- Y S Oh
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - J Lee
- School of Electrical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - D Y Choi
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - H Lee
- School of Electrical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - K Kang
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - S Yoo
- School of Electrical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - I Park
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea.
| | - H J Sung
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea.
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22
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Lee J, Cho Y, Park I. Heart Transplantation Bridged by Extracorporeal Life Support in the Korean Adults: A 15 Year Single Center Experience. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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23
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Myung JW, Kim JH, Cho J, Park I, Kim HY, Beom JH. Contrast-Induced Acute Kidney Injury in Radiologic Management of Acute Ischemic Stroke in the Emergency Setting. AJNR Am J Neuroradiol 2020; 41:632-636. [PMID: 32165364 DOI: 10.3174/ajnr.a6472] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 02/05/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE The use of invasive cerebral angiography with CTA for active treatment of patients with suspected ischemic strokes has been increasing recently. This study aimed to identify the incidence of postcontrast acute kidney injury using baseline renal function when CTA and cerebral angiography were performed sequentially. MATERIALS AND METHODS This retrospective observational study evaluated adults (18 years of age or older) with ischemic stroke who underwent CTA and cerebral angiography sequentially between 2010 and 2018. The incidence of postcontrast acute kidney injury was determined using the baseline estimated glomerular filtration rate. The value of the baseline estimated glomerular filtration rate at which the occurrence of postcontrast acute kidney injury increased was also determined. RESULTS Postcontrast acute kidney injury occurred in 57/601 (9.5%) patients. Those with a baseline estimated glomerular filtration rate of <30 mL/min/1.73 m2 showed a higher incidence of acute kidney injury. Age, chronic kidney disease, medication (nonsteroidal anti-inflammatory drugs, angiotensin-converting enzyme inhibitors, angiotensin II receptor blockers, β blockers, statins, and insulin) use following contrast media exposure, and serum albumin affected the incidence of postcontrast acute kidney injury. The incidence of postcontrast acute kidney injury increased when the baseline estimated glomerular filtration rate was <43 mL/min/1.73 m2. CONCLUSIONS Patients with low baseline renal function had the highest incidence of postcontrast acute kidney injury after CTA and cerebral angiography, but no fatal adverse effects were documented. Thus, patients suspected of having a stroke should be actively managed with respect to neurovascular function.
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Affiliation(s)
- J W Myung
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.)
| | - J H Kim
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.)
| | - J Cho
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.)
| | - I Park
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.)
| | - H Y Kim
- Biostatistics Collaboration Unit, Department of Biomedical Systems Informatics (H.Y.K.), Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J H Beom
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.),
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24
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Seol J, Fujii Y, Park I, Yoko S, Kawana F, Yajima K, Fukusumi S, Okura T, Satoh M, Tokuyama K, Kokubo T, Yanagisawa M. Different Effects of orexin receptor antagonist and gabaa agonist on physical and cognitive functions after forced awakening. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Park I, Kim D. Correlation Between the Immediate Remnant Stump Length and Vein Diameter After Cyanoacrylate Closure Using the VenaSeal System During Treatment of an Incompetent Great Saphenous Vein. Vasc Endovascular Surg 2019; 54:47-50. [PMID: 31581906 PMCID: PMC6900567 DOI: 10.1177/1538574419879563] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Cyanoacrylate glue is injected for incompetent great saphenous vein (GSV) treatment 5 cm distal to the saphenofemoral junction (SFJ). Although a few reports have investigated the postprocedural remnant stump length, none have focused on the factors affecting glue extension length and the consequent remnant stump length. METHODS Seventy-nine patients undergoing cyanoacrylate closure using the VenaSeal system at our clinic between August 2018 and November 2018 were investigated. The GSV diameter was measured just before treatment in the supine position 3 cm distal to the SFJ. Cyanoacrylate glue was injected 5 cm distal to the SFJ. RESULTS The mean glue extension length was 1.13 ± 1.12 cm. The GSV diameter and glue extension length exhibited a significant inversely proportional relationship (P < .001). More specifically, patients with a GSV diameter ≥0.7 cm had a longer remnant stump length than those with a smaller GSV diameter (P < .001). CONCLUSIONS An increased GSV diameter is likely associated with a decreased glue extension length and, consequently, a longer remnant stump.
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Affiliation(s)
- Insoo Park
- Charm Vein Center, Gwanak-gu, Seoul, Republic of Korea
| | - Daehwan Kim
- Charm Vein Center, Gwanak-gu, Seoul, Republic of Korea
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26
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Park I, Jennifer C, Michael G, David A, Claudia M. Functional Diversity Of Vascular Macrophages In Murine Atherosclerosis. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Han S, Park I, Chang S, Na J. 991 Deep neural networks empower medical professionals in diagnosing skin cancer and predicting treatment options for general skin disorders. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.1067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Kim Y, Kim E, Ahn H, Park I, Lee SC, Hwang I, Sym S, Shin D. Prognostic significance of CT-determined sarcopenia in patients with advanced gastric cancer treated with chemotherapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy432.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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29
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Kim T, Gwak G, Chung M, Kim J, Park I, Um E, Han J, Lee A. Multicenter trial for safety and toxicity of a nanoparticle docetaxel formulation in breast cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy426.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Ahn H, Kim Y, Kim E, Park K, Park I, Sym S, Park S, Shin D. A pilot study of exercise intervention during chemotherapy in patients with metastatic cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy444.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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31
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Park JH, Kim E, Park K, Kang S, Ahn H, Kim Y, Park I, Sym S, Shin D. A pilot study of exercise intervention in patients with metastatic cancer: Feasibility, safety, and patient reported outcome. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Byun J, Jung H, Bae WK, Lee HJ, Park S, Kim H, Maeng C, Park I, Sohn B, Kim J, Lee K, Im D, Kim J, Jang H, Kim S. Comparative effectiveness of neoadjuvant chemotherapy followed by cystectomy versus cystectomy followed by adjuvant chemotherapy versus palliative chemotherapy versus cystectomy for node-positive bladder cancer: A retrospective analysis: KCSG GU 17-03. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy283.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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33
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Yeo J, Ahn H, Park I, Kim Y, Sym S, Cho E, Shin D. Left ventricular ejection fraction (LVEF) change for the first 6 months predicts development of trastuzumab-related cardiotoxicity in patients with breast cancer: An implication for the more efficient cardiac surveillance. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
OBJECTIVES To investigate the initial outcomes of 1940 nm diode laser in the treatment of incompetent saphenous veins. METHODS This was a prospective observational study. We treated 89 patients with 160 incompetent saphenous veins using a 1940 nm diode laser and bare fiber. The laser's power was set to 4.5 W with a mean linear endovenous energy density of 50.4 J/cm. RESULTS The one-month closure rate was 100%. The post-procedural pain score at 6 h, 1 day, 10 days, and 1 month was 0.85 ± 1.04, 0.65 ± 1.01, 0.82 ± 1.25, and 0.47 ± 0.82, respectively. Complications encountered included paresthesia (3.8%) and thrombophlebitis (4.4%), whereas no cases of endovenous heat-induced thrombosis were observed. CONCLUSION The 1940 nm laser and bare fiber at 50.4 J/cm showed satisfactory initial outcomes with less pain and fewer complications, in the treatment of incompetent saphenous veins.
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Affiliation(s)
- Insoo Park
- Charm Vein Center, Seoul, Republic of Korea
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35
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Choi JH, Han H, Bae YG, Hwang ST, Kim HY, Park I, Kim SM, Choe YH, Moon YJ. P4629Computationally simulated fractional flow reserve from coronary computed tomography angiography based on fractional myocardial mass. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J.-H Choi
- Samsung Medical Center, Seoul, Korea Republic of
| | - H Han
- Korea University, Seoul, Korea Republic of
| | - Y.-G Bae
- Korea University, Seoul, Korea Republic of
| | - S.-T Hwang
- Korea University, Seoul, Korea Republic of
| | - H.-Y Kim
- Chonnam National University Hospital, Gwangju, Korea Republic of
| | - I Park
- Samsung Medical Center, Seoul, Korea Republic of
| | - S.-M Kim
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y.-H Choe
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y.-J Moon
- Korea University, Seoul, Korea Republic of
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36
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Choi JH, Bae YG, Hwang ST, Han H, Kim SM, Kim HY, Park I, Lee JM, Moon YJ. P1711Non-invasive coronary physiology based on computational analysis of intracoronary transluminal attenuation gradient. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J.-H Choi
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y.-G Bae
- Korea University, Seoul, Korea Republic of
| | - S.-T Hwang
- Korea University, Seoul, Korea Republic of
| | - H Han
- Korea University, Seoul, Korea Republic of
| | - S.-M Kim
- Samsung Medical Center, Seoul, Korea Republic of
| | - H.-Y Kim
- Chonnam National University Hospital, Gwangju, Korea Republic of
| | - I Park
- Samsung Medical Center, Seoul, Korea Republic of
| | - J.-M Lee
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y.-J Moon
- Korea University, Seoul, Korea Republic of
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Park I, Choi JH, Kim EK, Kim SM, Yang JH, Song YB, Hahn JY, Choi SH, Gwon HC, Lee SH, Choi YH, Oh JK. P1790Non-invasive identification of coronary collateral vessels by coronary computed tomography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- I Park
- International ST.Mary's Hospital, Department of Internal medicine, Division of Cardiology, Incheon, Korea Republic of
| | - J H Choi
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - E K Kim
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S M Kim
- Samsung Medical Center, Department of Radiology, Seoul, Korea Republic of
| | - J H Yang
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - Y B Song
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - J Y Hahn
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S H Choi
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - H C Gwon
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S H Lee
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - Y H Choi
- Samsung Medical Center, Department of Radiology, Seoul, Korea Republic of
| | - J K Oh
- Mayo Clinic, Department of Internal medicine, Rochester, United States of America
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38
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Park I, Pasquetti T, Malheiros RD, Ferket PR, Kim SW. Effects of supplemental L-methionine on growth performance and redox status of turkey poults compared with the use of DL-methionine. Poult Sci 2018; 97:102-109. [PMID: 29077910 PMCID: PMC5850274 DOI: 10.3382/ps/pex259] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 09/03/2017] [Indexed: 01/11/2023] Open
Abstract
This study was conducted to test the effects of dietary supplementation of feed grade L-Met on growth performance and redox status of turkey poults compared with the use of conventional DL-Met. Three hundred and eighty five newly hatched turkey poults were weighed and allotted to 5 treatments in a completely randomized design and the birds were fed dietary treatments for 28 d, including a basal diet (BD), the BD + 0.17 or 0.33% DL-Met or L-Met (representing 60, 75, and 90% of the requirement by National Research Council (NRC) for S containing AA, respectively). Increasing Met supplementation from 0 to 0.33% increased (P < 0.05) weight gain (690 to 746 g) and feed intake (1,123 to 1,248 g) of turkey poults. Supplementing L-Met tended (P = 0.053) to reduce feed to gain ratio (1.70 to 1.63) compared with DL-Met. The relative bioavailability of L-Met to DL-Met was 160% based on a multilinear regression analysis of weight gain. Supplementing Met regardless of its sources decreased (P < 0.05) malondialdehyde (3.29 to 2.47 nmol/mg protein) in duodenal mucosa compared with birds in the BD. Supplementing L-Met tended (P = 0.094) to decrease malondialdehyde (1.27 to 1.16 nmol/mg protein) and increase glutathione (3.21 to 3.45 nmol/mg protein) in the liver compared with DL-Met. Total antioxidant capacity, protein carbonyl, and morphology of duodenum and jejunum were not affected by Met sources. In conclusion, dietary supplementation of 0.33% Met to a diet with S containing AA meeting 60% of the NRC requirement enhanced weight gain, feed intake, and redox status by reducing oxidative stress in the gut and liver of turkey poults during the first 28 d of age. Use of L-Met tended to enhance feed efficiency and was more effective in reducing oxidative stress and increasing glutathione in the liver compared with the use of DL-Met. The use of L-Met as a source of Met replacing DL-Met seems to be beneficial to turkey poults during the first 28 d of age.
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Affiliation(s)
- I Park
- Department of Animal Science
| | - T Pasquetti
- Department of Animal Science, North Carolina State University, Raleigh 27695.,Prestage Department of Poultry Science, North Carolina State University, Raleigh 27695
| | - R D Malheiros
- Prestage Department of Poultry Science, North Carolina State University, Raleigh 27695
| | - P R Ferket
- Prestage Department of Poultry Science, North Carolina State University, Raleigh 27695
| | - S W Kim
- Department of Animal Science, North Carolina State University, Raleigh 27695
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Park I, Jung S, Seo Y, Oh S, Lee K, Kim S, Lee Y, Kim S. 0982 Differential Role of Sleep Disturbance and Stress Level on Depressive Symptoms and Anxiety. Sleep 2018. [DOI: 10.1093/sleep/zsy061.981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- I Park
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - S Jung
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - Y Seo
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - S Oh
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - K Lee
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - S Kim
- Gangneung Asan Hospital, Gangwon-do, KOREA, REPUBLIC OF
| | - Y Lee
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - S Kim
- Samsung Medical Center, Seoul, KOREA, REPUBLIC OF
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Park I. Successful use of VenaSeal system for the treatment of large great saphenous vein of 2.84-cm diameter. Ann Surg Treat Res 2018; 94:219-221. [PMID: 29629358 PMCID: PMC5880981 DOI: 10.4174/astr.2018.94.4.219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 06/27/2017] [Accepted: 07/12/2017] [Indexed: 11/30/2022] Open
Abstract
Cyanoacrylate closure, VenaSeal system, for the treatment of incompetent saphenous vein is a new technique. We report a successful case with a large great saphenous vein of 2.84 cm in diameter.
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Affiliation(s)
- Insoo Park
- Department of Varicose Vein Clinic, Charm Vein Center, Seoul, Korea
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Lim SY, Choi M, Baek JY, Park I. Moderating effect of synthesized docosahexaenoic acid-enriched phosphatidylcholine on production of Th1 and Th2 cytokine in lipopolysaccharide-induced inflammation. Asian Pac J Trop Biomed 2018. [DOI: 10.4103/2221-1691.237076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Abbaneo D, Abbas M, Abbrescia M, Abi Akl M, Aboamer O, Acosta D, Ahmad A, Ahmed W, Aleksandrov A, Altieri P, Asawatangtrakuldee C, Aspell P, Assran Y, Awan I, Bally S, Ban Y, Banerjee S, Barashko V, Barria P, Bencze G, Beni N, Benussi L, Bhopatkar V, Bianco S, Bos J, Bouhali O, Braghieri A, Braibant S, Buontempo S, Calabria C, Caponero M, Caputo C, Cassese F, Castaneda A, Cauwenbergh S, Cavallo F, Celik A, Choi M, Choi S, Christiansen J, Cimmino A, Colafranceschi S, Colaleo A, Conde Garcia A, Czellar S, Dabrowski M, De Lentdecker G, De Oliveira R, de Robertis G, Dildick S, Dorney B, Endroczi G, Errico F, Fenyvesi A, Ferry S, Furic I, Giacomelli P, Gilmore J, Golovtsov V, Guiducci L, Guilloux F, Gutierrez A, Hadjiiska R, Hauser J, Hoepfner K, Hohlmann M, Hoorani H, Iaydjiev P, Jeng Y, Kamon T, Karchin P, Korytov A, Krutelyov S, Kumar A, Kim H, Lee J, Lenzi T, Litov L, Loddo F, Madorsky A, Maerschalk T, Maggi M, Magnani A, Mal P, Mandal K, Marchioro A, Marinov A, Majumdar N, Merlin J, Mitselmakher G, Mohanty A, Mohapatra A, Molnar J, Muhammad S, Mukhopadhyay S, Naimuddin M, Nuzzo S, Oliveri E, Pant L, Paolucci P, Park I, Passeggio G, Pavlov B, Philipps B, Piccolo D, Postema H, Puig Baranac A, Radi A, Radogna R, Raffone G, Ranieri A, Rashevski G, Riccardi C, Rodozov M, Rodrigues A, Ropelewski L, RoyChowdhury S, Ryu G, Ryu M, Safonov A, Salva S, Saviano G, Sharma A, Sharma A, Sharma R, Shah A, Shopova M, Sturdy J, Sultanov G, Swain S, Szillasi Z, Talvitie J, Tatarinov A, Tuuva T, Tytgat M, Vai I, Van Stenis M, Venditti R, Verhagen E, Verwilligen P, Vitulo P, Volkov S, Vorobyev A, Wang D, Wang M, Yang U, Yang Y, Yonamine R, Zaganidis N, Zenoni F, Zhang A. Quality control for the first large areas of triple-GEM chambers for the CMS endcaps. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201817403003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The CMS Collaboration plans to equip the very forward muon system with triple-GEM detectors that can withstand the environment of the High-Luminosity LHC. This project is at the final stages of R&D and moving to production. An unprecedented large area of several 100 m2 are to be instrumented with GEM detectors which will be produced in six different sites around the world. A common construction and quality control procedure is required to ensure the performance of each detector. The quality control steps will include optical inspection, cleaning and baking of all materials and parts used to build the detector, leakage current tests of the GEM foils, high voltage tests, gas leak tests of the chambers and monitoring pressure drop vs. time, gain calibration to know the optimal operation region of the detector, gain uniformity tests, and studying the efficiency, noise and tracking performance of the detectors in a cosmic stand using scintillators.
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Abbaneo D, Abbas M, Abbrescia M, Abi Akl M, Aboamer O, Acosta D, Ahmad A, Ahmed W, Aleksandrov A, Altieri P, Asawatangtrakuldee C, Aspell P, Assran Y, Awan I, Bally S, Ban Y, Banerjee S, Barashko V, Barria P, Bencze G, Beni N, Benussi L, Bhopatkar V, Bianco S, Bos J, Bouhali O, Braghieri A, Braibant S, Buontempo S, Calabria C, Caponero M, Caputo C, Cassese F, Castaneda A, Cauwenbergh S, Cavallo F, Celik A, Choi M, Choi S, Christiansen J, Cimmino A, Colafranceschi S, Colaleo A, Conde Garcia A, Czellar S, Dabrowski M, De Lentdecker G, De Oliveira R, de Robertis G, Dildick S, Dorney B, Endroczi G, Errico F, Fenyvesi A, Ferrini M, Ferry S, Furic I, Giacomelli P, Gilmore J, Golovtsov V, Guiducci L, Guilloux F, Gutierrez A, Hadjiiska R, Hauser J, Hoepfner K, Hohlmann M, Hoorani H, Iaydjiev P, Jeng Y, Kamon T, Karchin P, Korytov A, Krutelyov S, Kumar A, Kim H, Lalli A, Lee J, Lenzi T, Litov L, Loddo F, Madorsky A, Maerschalk T, Maggi M, Magnani A, Mal P, Mandal K, Marchioro A, Marinov A, Majumdar N, Merlin J, Mitselmakher G, Mohanty A, Mohapatra A, Molnar J, Muhammad S, Mukhopadhyay S, Naimuddin M, Nuzzo S, Oliveri E, Pant L, Paolucci P, Park I, Passamonti L, Passeggio G, Pavlov B, Philipps B, Piccolo D, Pierluigi D, Postema H, Primavera F, Puig Baranac A, Radi A, Radogna R, Raffone G, Ranieri A, Rashevski G, Riccardi C, Rodozov M, Rodrigues A, Ropelewski L, RoyChowdhury S, Russo A, Ryu G, Ryu M, Safonov A, Salva S, Saviano G, Sharma A, Sharma A, Sharma R, Shah A, Shopova M, Sturdy J, Sultanov G, Swain S, Szillasi Z, Talvitie J, Tatarinov A, Tuuva T, Tytgat M, Valente M, Vai I, Van Stenis M, Venditti R, Verhagen E, Verwilligen P, Vitulo P, Volkov S, Vorobyev A, Wang D, Wang M, Yang U, Yang Y, Yonamine R, Zaganidis N, Zenoni F, Zhang A. A novel application of Fiber Bragg Grating (FBG) sensors in MPGD. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201817403002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We present a novel application of Fiber Bragg Grating (FBG) sensors in the construction and characterisation of Micro Pattern Gaseous Detector (MPGD), with particular attention to the realisation of the largest triple (Gas electron Multiplier) GEM chambers so far operated, the GE1/1 chambers of the CMS experiment at LHC. The GE1/1 CMS project consists of 144 GEM chambers of about 0.5 m2 active area each, employing three GEM foils per chamber, to be installed in the forward region of the CMS endcap during the long shutdown of LHC in 2108-2019. The large active area of each GE1/1 chamber consists of GEM foils that are mechanically stretched in order to secure their flatness and the consequent uniform performance of the GE1/1 chamber across its whole active surface. So far FBGs have been used in high energy physics mainly as high precision positioning and re-positioning sensors and as low cost, easy to mount, low space consuming temperature sensors. FBGs are also commonly used for very precise strain measurements in material studies. In this work we present a novel use of FBGs as flatness and mechanical tensioning sensors applied to the wide GEM foils of the GE1/1 chambers. A network of FBG sensors have been used to determine the optimal mechanical tension applied and to characterise the mechanical tension that should be applied to the foils. We discuss the results of the test done on a full-sized GE1/1 final prototype, the studies done to fully characterise the GEM material, how this information was used to define a standard assembly procedure and possible future developments.
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Park I, Kim YS, Sym SJ, Ahn HK, Kim KK, Park YH, Lee JN, Shin DB. Metastasectomy for recurrent or metastatic biliary tract cancers: A single center experience. Indian J Cancer 2017; 54:57-62. [PMID: 29199665 DOI: 10.4103/0019-509x.219581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
PURPOSE To assess efficacy or long-term result of metastasectomy for recurrent or metastatic biliary tract carcinoma (BTC), we conducted a retrospective review of the outcomes of metastasectomy for recurrent or metastatic BTCs, comprising intrahepatic cholangiocellular carcinoma (IHCCC), proximal and distal common bile duct cancer (pCBDC and dCBDC), gallbladder cancer (GBC), and ampulla of Vater cancer (AoVC). PATIENTS AND METHODS The clinicopathological features and outcomes of BTC patients who underwent surgical resection for the primary and metastatic disease at the Gachon University Gil Medical Centre from 2003 to 2013 were reviewed retrospectively. RESULTS We found 19 eligible patients. Primary sites were GBC (seven patients, 37%), IHCCC (five patients, 26%), dCBDC (three patients, 16%), pCBDC (two patients, 11%), and AoVC (two patients, 11%). Eight patients (42%) had synchronous metastasis whereas 11 (58%) had metachronous metastasis. The most common metastatic site was liver (nine patients, 47%), lymph node (nine patients, 47%), and peritoneum (three patients, 16%). Nine patients (47%) achieved R0 resection, whereas four (21%) and six (32%) patients had R1 and R2 resection, respectively. With a median follow-up period of 26.7 months, the estimated median overall survival (OS) was 18.2 months (95% confidence interval, 13.6-22.9 months). Lower Eastern Cooperative Oncology Group performance status (P = 0.023), metachronous metastasis (P = 0.04), absence of lymph node metastasis (P = 0.009), lower numbers of metastatic organs (P < 0.001), normal postoperative CA19-9 level (P = 0.034), and time from diagnosis to metastasectomy more than 1 year (P = 0.019) were identified as prognostic factors for a longer OS after metastasectomy. CONCLUSIONS For recurrent or metastatic BTCs, metastasectomy can be a viable option for selected patients.
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Affiliation(s)
- I Park
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - Y S Kim
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - S J Sym
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - H K Ahn
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - K K Kim
- Department of Surgery, Gachon University Gil Medical Center, Incheon, Korea
| | - Y H Park
- Department of Surgery, Gachon University Gil Medical Center, Incheon, Korea
| | - J N Lee
- Department of Surgery, Gachon University Gil Medical Center, Incheon, Korea
| | - D B Shin
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
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Choi Y, Akazawa N, Nakamura Y, Park I, Tokuyama K, Maeda S. The effects of bright light exposure at night on circadian rhythms and energy metabolism. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Park J, Park SW, Cho SI, Park I, Kim YH, Park EY, Oh JK, Kim SJ, Park JH, Lim MK. Planning of national prospective study on tobacco behavior transition among adolescents in Korea. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx186.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- J Park
- Graduate School of Cancer Science and Policy, National Cancer Center, Daegu, South Korea
| | - SW Park
- Catholic University of Daegu, School of Medicine, Daegym, South Korea
| | - SI Cho
- Seoul National University, Seoul, South Korea
| | - I Park
- Pukyong National University, Busan, South Korea
| | - YH Kim
- Pukyong National University, Busan, South Korea
| | - EY Park
- National Cancer Center, Goyang, South Korea
| | - JK Oh
- Graduate School of Cancer Science and Policy, National Cancer Center, Daegu, South Korea
| | - SJ Kim
- National Cancer Center, Goyang, South Korea
| | - JH Park
- National Cancer Center, Goyang, South Korea
| | - MK Lim
- Graduate School of Cancer Science and Policy, National Cancer Center, Daegu, South Korea
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Park I. Initial Outcomes of Cyanoacrylate Closure, VenaSeal System, for the Treatment of the Incompetent Great and Small Saphenous Veins. Vasc Endovascular Surg 2017; 51:545-549. [DOI: 10.1177/1538574417729272] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose: Cyanoacrylate closure of the saphenous vein with the VenaSeal system is a new technique just approved on December 2016 in Korea. Therefore, there are seldom reports about postprocedural outcomes of VenaSeal system in Asian countries. We report the initial outcomes of VenaSeal system for the treatment of great saphenous veins (GSVs) and small saphenous veins (SSVs) as a first report in Korea. Methods: Thirty-four patients with incompetent saphenous veins (47 GSVs and 16 SSVs) were treated at a single session. Concomitant phlebectomy was performed in 15 (44.1%) of 34 patients. All procedures were started with local anesthesia with music therapy and switched to intravenous sedation if patient requested. Patients revisited the clinic on 10 days, 1 month, and 3 months after surgery. Postprocedural evaluations including numerical pain rating score, revised Venous Clinical Severity Scores (rVCSS), and Aberdeen Varicose Vein Questionnaires were checked. Duplex ultrasound was performed on 10 days, 1 month, and 3 months. Results: All treated veins (47 GSVs and 16 SSVs; 100%) had complete closure by duplex ultrasound during the follow-up period. Mean numerical pain rating scale of 6 hours after procedure was 2.7. The rVCSS was improved during the follow-up period. Phlebitis-like “abnormal skin reaction” in the treatment area was occurred in 8 (23.5%) of 34 patients and recovered fully in 2 weeks. Conclusions: Cyanoacrylate closure, VenaSeal system, is safe and effective for the treatment of incompetent saphenous veins.
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Affiliation(s)
- Insoo Park
- Department of Varicose Vein Clinic, Charm Vein Center, Seoul, Republic of Korea
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Kim S, Park I, Park SG, Cho S, Kim JH, Ipper NS, Choi SS, Lee ES, Hong HJ. Generation, Diversity Determination, and Application to Antibody Selection of a Human Naïve Fab Library. Mol Cells 2017; 40:655-666. [PMID: 28927259 PMCID: PMC5638773 DOI: 10.14348/molcells.2017.0106] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 08/04/2017] [Accepted: 08/06/2017] [Indexed: 12/29/2022] Open
Abstract
We constructed a large naïve human Fab library (3 × 1010 colonies) from the lymphocytes of 809 human donors, assessed available diversities of the heavy-chain variable (VH) and κ light-chain variable (VK) domain repertoires, and validated the library by selecting Fabs against 10 therapeutically relevant antigens by phage display. We obtained a database of unique 7,373 VH and 41,804 VK sequences by 454 pyrosequencing, and analyzed the repertoires. The distribution of VH and VK subfamilies and germline genes in our antibody repertoires slightly differed from those in earlier published natural antibody libraries. The frequency of somatic hypermutations (SHMs) in heavy-chain complementarity determining region (HCDR)1 and HCDR2 are higher compared with the natural IgM repertoire. Analysis of position-specific SHMs in CDRs indicates that asparagine, threonine, arginine, aspartate and phenylalanine are the most frequent non-germline residues on the antibody-antigen interface and are converted mostly from the germline residues, which are highly represented in germline SHM hotspots. The amino acid composition and length-dependent changes in amino acid frequencies of HCDR3 are similar to those in previous reports, except that frequencies of aspartate and phenylalanine are a little higher in our repertoire. Taken together, the results show that this antibody library shares common features of natural antibody repertoires and also has unique features. The antibody library will be useful in the generation of human antibodies against diverse antigens, and the information about the diversity of natural antibody repertoires will be valuable in the future design of synthetic human antibody libraries with high functional diversity.
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Affiliation(s)
- Sangkyu Kim
- Department of Systems Immunology, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
| | - Insoo Park
- Therapeutic Antibody Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141,
Korea
| | - Seung Gu Park
- Department of Medical Biotechnology, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
| | - Seulki Cho
- Therapeutic Antibody Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141,
Korea
| | - Jin Hong Kim
- Therapeutic Antibody Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141,
Korea
| | - Nagesh S. Ipper
- Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341,
Korea
| | - Sun Shim Choi
- Department of Medical Biotechnology, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
| | - Eung Suk Lee
- Scripps Korea Antibody Institute, Chuncheon 24341,
Korea
| | - Hyo Jeong Hong
- Department of Systems Immunology, College of Biomedical Science, Kangwon National University, Chuncheon 24341,
Korea
- Institute of Bioscience and Biotechnology, Kangwon National University, Chuncheon 24341,
Korea
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Park I, Lee K, Sun H, Kim J, Chi H, Kim S, Kim Y, Park J, Yoo C, Jo J. Effect of interval between ovulation trigger and oocyte aspiration in GnRH antagonist cycles. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sun H, Lee K, Park I, Kim J, Chi H, Kim S, Kim Y, Park J, Jo J. Does luteal phase support improve pregnancy outcome in natural frozen-thawed embryo transfer cycles? Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.1044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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