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Kim TK, Bae EJ, Jung BC, Choi M, Shin SJ, Park SJ, Kim JT, Jung MK, Ulusoy A, Song MY, Lee JS, Lee HJ, Di Monte DA, Lee SJ. Correction: Inflammation promotes synucleinopathy propagation. Exp Mol Med 2024; 56:1029-1030. [PMID: 38556555 PMCID: PMC11059371 DOI: 10.1038/s12276-024-01217-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024] Open
Affiliation(s)
- Tae-Kyung Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
- Department of Exercise Physiology and Sport Science Institute, Korea National Sport University, Seoul, 05541, Korea
| | - Eun-Jin Bae
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
- Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Byung Chul Jung
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
- Nutritional Sciences and Toxicology Department, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Minsun Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Soo Jean Shin
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Sung Jun Park
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Jeong Tae Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Min Kyo Jung
- Neural Circuits Research Group, Korea Brain Research Institute, Daegu, 41068, Korea
| | - Ayse Ulusoy
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Mi-Young Song
- Department of Biomedical Science and Technology, Konkuk University, Seoul, 143-701, Korea
- IPS Intellectual Property Law Firm, Seoul, Korea
| | - Jun Sung Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
- Neuramedy Co. Ltd., Seoul, South Korea
| | - He-Jin Lee
- Department of Anatomy, Konkuk University, Seoul, 05029, Korea
- IBST, Konkuk University, Seoul, 05029, Korea
| | | | - Seung-Jae Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea.
- Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, South Korea.
- SNU Dementia Research Center, Seoul National University College of Medicine, Seoul, South Korea.
- Neuramedy Co. Ltd., Seoul, South Korea.
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Kim SJ, Jo Y, Park SJ, Ji E, Lee JY, Choi E, Baek JY, Jang IY, Jung HW, Kim K, Ryu D, Yoo HJ, Kim BJ. Metabolomic profiles of ovariectomized mice and their associations with body composition and frailty-related parameters in postmenopausal women. J Endocrinol Invest 2024:10.1007/s40618-024-02338-x. [PMID: 38493245 DOI: 10.1007/s40618-024-02338-x] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/12/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Menopause, a dramatical estrogen-deficient condition, is considered the most significant milestone in women's health. PURPOSE To investigate the metabolite changes attributed to estrogen deficiency using random forest (RF)-based machine learning (ML) modeling strategy in ovariectomized (OVX) mice as well as determine the clinical relevance of selected metabolites in older women. METHODS AND RESULTS Untargeted and targeted metabolomic analyses revealed that metabolites related to TCA cycle, sphingolipids, phospholipids, fatty acids, and amino acids, were significantly changed in the plasma and/or muscle of OVX mice. Subsequent ML classifiers based on RF algorithm selected alpha-ketoglutarate (AKG), arginine, carnosine, ceramide C24, phosphatidylcholine (PC) aa C36:6, and PC ae C42:3 in plasma as well as PC aa 34:1, PC aa C34:3, PC aa C36:5, PC aa C32:1, PC aa C36:2, and sphingosine in muscle as top featured metabolites that differentiate the OVX mice from the sham-operated group. When circulating levels of AKG, arginine, and carnosine, which showed the most significant changes in OVX mice blood, were measured in postmenopausal women, higher plasma AKG levels were associated with lower bone mass, weak grip strength, poor physical performance, and increased frailty risk. CONCLUSIONS Metabolomics- and ML-based methods identified the key metabolites of blood and muscle that were significantly changed after ovariectomy in mice, and the clinical implication of several metabolites was investigated by looking at their correlation with body composition and frailty-related parameters in postmenopausal women. These findings provide crucial context for understanding the diverse physiological alterations caused by estrogen deficiency in women.
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Affiliation(s)
- S J Kim
- Department of Convergence Medicine, Asan Institute for Life Sciences, Asan Medical Center,, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea
| | - Y Jo
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - S J Park
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - E Ji
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - J Y Lee
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - E Choi
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - J-Y Baek
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - I Y Jang
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - H-W Jung
- Division of Geriatrics, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - K Kim
- Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
- Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, South Korea
| | - D Ryu
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea.
| | - H J Yoo
- Department of Convergence Medicine, Asan Institute for Life Sciences, Asan Medical Center,, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.
| | - B-J Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, South Korea.
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Park JS, Cho KJ, Kim JS, Park SJ, Baek H. Sarcopenia in paraspinal muscle as a risk factor of proximal junctional kyphosis and proximal junctional failure after adult spinal deformity surgery. J Neurosurg Spine 2024; 40:324-330. [PMID: 38039529 DOI: 10.3171/2023.9.spine23531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 09/25/2023] [Indexed: 12/03/2023]
Abstract
OBJECTIVE The aim of this study was to identify the risk factors for proximal junctional kyphosis (PJK) and proximal junctional failure (PJF), including paraspinal muscle atrophy. METHODS Fifty-seven consecutive patients who underwent a long-instrumented fusion for adult spinal deformity (ASD) with a minimum follow-up of 2 years were included in the study. Patient, surgical, and radiological factors were evaluated. Muscle volume was measured using the muscle/vertebra ratio of the multifidus, erector spinae (ES), and psoas muscles, and muscle function was evaluated using the degree of fat infiltration at the L4-5 level. RESULTS The study included 57 consecutive patients: 25 patients in the combined PJK/PJF group (13 with PJK and 12 with PJF) and 32 in the control group (without PJK or PJF). The mean time to onset of PJK and PJF was 15.7 and 1.7 months, respectively. Multivariate analysis showed that greater pre- and postoperative sagittal vertical axis was associated with the occurrence of PJK/PJF. ES muscle atrophy was more significant in the PJK/PJF group than in the control group, and more severe in the PJF than in the PJK group. CONCLUSIONS This study showed that PJF occurred much earlier than PJK after ASD surgery. Paraspinal muscle atrophy was identified as a significant risk factor for PJK and PJF, especially PJF. The possibility of PJK and PJF development should be considered when long-segment fusion is planned for patients with paraspinal muscle atrophy.
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Park SJ, Kim HR, Shinn SH, Kim HJ, Jung SH, Choo SJ. Aortic arch isolation to reduce cerebral embolic risk during replacement of the atherosclerotic aortic arch. J Thorac Cardiovasc Surg 2024; 167:927-934.e1. [PMID: 35606177 DOI: 10.1016/j.jtcvs.2022.04.018] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 03/15/2022] [Accepted: 04/10/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To analyze the efficacy of isolating the upper body circulation from the lower body (isolation technique) in reducing the risk of embolic stroke during cardiopulmonary bypass in patients with severe atherosclerosis undergoing aortic arch surgery. METHODS Between 2006 and 2019, 156 patients with severe atherosclerosis undergoing total arch replacement were enrolled. Since 2017, the right axillary or innominate artery and ascending aorta were both cannulated before cardiopulmonary bypass in the isolation group (n = 30). The left common carotid artery was clamped and inserted with a 13-Fr balloon perfusion catheter. The innominate artery was clamped in succession and cardiopulmonary bypass was instituted, establishing a parallel noncommunicating circulation for the upper and lower body. Patients without atherosclerosis that were not considered at high risk of embolic complications were excluded. The no-isolation group was drawn from historically matched control patients undergoing total arch replacement. RESULTS The permanent stroke rate in the isolation and no-isolation groups were 3.3% (n = 1) and 15.9% (n = 15.9), respectively. After inverse-probability-of-treatment-weighting adjustment, the early mortality (P = .043), stroke (P = .044), and composite of early mortality or stroke (P = .005) rates were significantly lower in the isolation group. The logistic regression analysis after inverse-probability-of-treatment-weighting risk adjustment showed a significantly reduced composite risk of early death and stroke in the isolation group (odds ratio, 0.09; 95% confidence interval, 0.01-0.70; P = .023). CONCLUSIONS The isolation technique was associated with a significant reduction in early postoperative embolic stroke and mortality risks in patients with severe aortic atherosclerosis undergoing total arch replacement.
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Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Hong Rae Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung Ho Shinn
- Department of Thoracic and Cardiovascular Surgery, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung-Ho Jung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Suk Jung Choo
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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Chon YE, Park SJ, Park MY, Ha Y, Lee JH, Lee KS, Yoon EL, Jun DW. Extrahepatic Malignancies Are the Leading Cause of Death in Patients with Chronic Hepatitis B without Cirrhosis: A Large Population-Based Cohort Study. Cancers (Basel) 2024; 16:711. [PMID: 38398102 PMCID: PMC10886555 DOI: 10.3390/cancers16040711] [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: 01/12/2024] [Revised: 02/01/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
(1) Background: Accurate statistics on the causes of death in patients with chronic hepatitis B (CHB) are lacking. We investigated mortality rates and causes of death over time. (2) Methods: Data on patients newly diagnosed with CHB from 2007 to 2010 (cohort 1, n = 223,424) and 2012 to 2015 (cohort 2, n = 177,966) were retrieved from the Korean National Health Insurance Service. Mortality data were obtained from Statistics Korea. The causes of death were classified as liver-related (hepatic decompensation or hepatocellular carcinoma [HCC]) or extrahepatic (cardiovascular-related, cerebrovascular-related, or extrahepatic malignancy-related). (3) Results: Over a 10-year follow-up period of 223,424 patients (cohort 1) with CHB, the overall mortality was 1.54 per 100 person-years. The mortality associated with HCC was the highest (0.65 per 100 person-years), followed by mortality related to extrahepatic malignancies (0.26 per 100 person-years), and cardio/cerebrovascular diseases (0.18 per 100 person-years). In the non-cirrhotic CHB (87.4%), 70% (11,198/15,996) of patients died due to non-liver-related causes over ten years. The 10-year overall mortality was 0.86 per 100 person-years. Among these, mortality due to extrahepatic malignancies had the highest rate (0.23 per 100 person-years), followed by mortality related to HCC (0.20 per 100 person-years), and cardio/cerebrovascular diseases (0.16 per 100 person-years). The 5-year mortality associated with extrahepatic malignancies increased from 0.36 per 100 person-years (cohort 1) to 0.40 per 100 person-years (cohort 2). (4) Conclusions: Mortality related to HCC decreased, whereas mortality related to extrahepatic malignancies increased in the antiviral era. Extrahepatic malignancies were the leading cause of death among patients with CHB without cirrhosis.
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Affiliation(s)
- Young Eun Chon
- Department of Gastroenterology, CHA Bundang Medical Center, CHA University, Seongnam 13496, Republic of Korea; (Y.E.C.); (Y.H.); (J.H.L.); (K.S.L.)
| | - Sung Jun Park
- Department of Gastroenterology, CHA Gumi Medical Center, CHA University, Seongnam 39295, Republic of Korea;
| | - Man Young Park
- Department of Digital Clinical Research, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea;
| | - Yeonjung Ha
- Department of Gastroenterology, CHA Bundang Medical Center, CHA University, Seongnam 13496, Republic of Korea; (Y.E.C.); (Y.H.); (J.H.L.); (K.S.L.)
| | - Joo Ho Lee
- Department of Gastroenterology, CHA Bundang Medical Center, CHA University, Seongnam 13496, Republic of Korea; (Y.E.C.); (Y.H.); (J.H.L.); (K.S.L.)
| | - Kwan Sik Lee
- Department of Gastroenterology, CHA Bundang Medical Center, CHA University, Seongnam 13496, Republic of Korea; (Y.E.C.); (Y.H.); (J.H.L.); (K.S.L.)
| | - Eileen L. Yoon
- Department of Internal Medicine, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea;
| | - Dae Won Jun
- Department of Internal Medicine, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea;
- Hanyang Institute of Bioscience and Biotechnology, Seoul 04763, Republic of Korea
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Park SJ, Silic MR, Staab PL, Chen J, Zackschewski EL, Zhang G. Evolution of two-pore domain potassium channels and their gene expression in zebrafish embryos. Dev Dyn 2024. [PMID: 38270285 DOI: 10.1002/dvdy.690] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 12/10/2023] [Accepted: 01/03/2024] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND The two-pore domain potassium (K2P) channels are a major type of potassium channels that maintain the cell membrane potential by conducting passive potassium leak currents independent of voltage change. They play prominent roles in multiple physiological processes, including neuromodulation, perception of pain, breathing and mood control, and response to volatile anesthetics. Mutations in K2P channels have been linked to many human diseases, such as neuronal and cardiovascular disorders and cancers. Significant progress has been made to understand their protein structures, physiological functions, and pharmacological modifiers. However, their expression and function during embryonic development remain largely unknown. RESULTS We employed the zebrafish model and identified 23 k2p genes using BLAST search and gene cloning. We first analyzed vertebrate K2P channel evolution by phylogenetic and syntenic analyses. Our data revealed that the six subtypes of the K2P genes have already evolved in invertebrates long before the emergence of vertebrates. Moreover, the vertebrate K2P gene number increased, most likely due to two whole-genome duplications. Furthermore, we examined zebrafish k2p gene expression during early embryogenesis by in situ hybridization. Each subgroup's genes showed similar but distinct gene expression domains with some exceptions. Most of them were expressed in neural tissues consistent with their known function of neural excitability regulation. However, a few k2p genes were expressed temporarily in specific tissues or organs, suggesting that these K2P channels may be needed for embryonic development. CONCLUSIONS Our phylogenetic and developmental analyses of K2P channels shed light on their evolutionary history and potential roles during embryogenesis related to their physiological functions and human channelopathies.
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Affiliation(s)
- Sung Jun Park
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
| | - Martin R Silic
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
| | - Peyton L Staab
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
| | - Jiapei Chen
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
| | - Ethan L Zackschewski
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
| | - GuangJun Zhang
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
- Purdue University Center for Cancer Research, Purdue University, West Lafayette, Indiana, USA
- Purdue Institute for Inflammation, Immunology and Infectious Diseases (PI4D), Purdue University, West Lafayette, Indiana, USA
- Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, Indiana, USA
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Kim HJ, Kim HR, Park SJ, Kim JB. In Memoriam: Suk Jung Choo (1964-2023). J Chest Surg 2023; 56:371-373. [PMID: 37915288 PMCID: PMC10625965 DOI: 10.5090/jcs.23.148] [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] [Received: 10/24/2023] [Accepted: 10/24/2023] [Indexed: 11/03/2023] Open
Affiliation(s)
- Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hong Rae Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Liu EY, Lin EY, Lee A, Venkat PS, Shiao JC, Wong A, Yu A, Hagio MA, Park SJ, Demanes J, Chang AJ. High-Dose Rate Brachytherapy Alone for Treatment of Unfavorable Intermediate Risk Prostate Cancer: A Propensity-Score Matched Analysis. Int J Radiat Oncol Biol Phys 2023; 117:e408-e409. [PMID: 37785355 DOI: 10.1016/j.ijrobp.2023.06.1551] [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] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To demonstrate the feasibility of high-dose rate brachytherapy (HDR BT) as monotherapy for unfavorable intermediate risk (UIR) prostate cancer by comparing survival outcomes of HDR BT alone against external beam radiation therapy (EBRT) + HDR BT boost, +/- androgen deprivation therapy (ADT) using propensity-score matched (PSM) data. MATERIALS/METHODS This retrospective study queried two data registries collecting patient data from 1991 to present. 633 patients with UIR prostate cancer treated with HDR BT alone, HDR BT+EBRT or HDR+EBRT+ADT were included. HDR BT patients received 42-45Gy/6 fractions (fx) or 27 Gy/2 fx. For HDR BT+EBRT, the HDR dose was 20-24 Gy/2 fx, 24 Gy/4 fx, or 15 Gy/1 fx. EBRT patients received 45 Gy/25 fx to the prostate +/- pelvic nodes. GU/GI toxicities were graded according to the Common Terminology Criteria for Adverse Events (CTCAE) v5.0. Time-to-event analyses were carried out to evaluate the relationship between treatments and five primary endpoints of interest: freedom from biochemical recurrence (FFBC), freedom from distant metastasis (FFDM), freedom from local failure (FFLF), cancer specific survival (CSS), and overall survival (OS) at 5 years. PSM was performed with one-to-n matching. Logistic regression was used to estimate the respective propensity scores. The five potential confounders identified were T-stage, Gleason score, pre-treatment PSA, age, and percent positive cores. Balance was checked using the standardized mean difference of covariates. Univariate and multivariate analyses were conducted on the matched data. Toxicity analysis was performed via association between a change in pre- and post-treatment GU/GI toxicity status and the treatment group, as well as incidence of post-treatment severe GI/GU toxicity (grade 3 or higher) and the treatment group. RESULTS Univariate analysis with Kaplan-Meier method and log rank test comparison between the three cohorts demonstrated no significant difference in all survival outcomes FFBC, FFDM, FFLF, CSS, OS (p = 0.15, 0.19, 0.29, 0.57, 0.28, respectively). Multivariate analysis with Cox proportional hazard regression showed no differences in HR for FFBC and OS (p = 0.95, 0.11) with addition of EBRT, or with EBRT+ADT (p = 0.17, 0.24); no fit was obtainable for FFDM, CSS, FFLF. Toxicities between the three cohorts were not significantly different when comparing post-treatment and baseline GI/GU symptoms (p = 0.53/1). No Grade 2 or 3 GI toxicities were identified, while 8%/1% HDR patients, 10%/1% HDR+EBRT patients, and 12%/2% HDR+EBRT+ADT patients experienced Grade 2/3 GU toxicities. The incidence of grade 3 or higher GU toxicities between the three groups was not significantly different (p = 0.91). CONCLUSION This propensity-score matched study demonstrates the feasibility of HDR BT alone for effective treatment of UIR prostate cancer when compared to HDR+EBRT or HDR+EBRT+ADT, while potentially minimizing the added toxicities of EBRT and the undesirable side effect profile of ADT.
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Affiliation(s)
- E Y Liu
- Department of Radiation Oncology, UCLA David Geffen School of Medicine, Los Angeles, CA
| | - E Y Lin
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - A Lee
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - P S Venkat
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - J C Shiao
- The University of Kansas Cancer Center, Kansas City, KS
| | - A Wong
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - A Yu
- University of California, Los Angeles, Los Angeles, CA
| | - M A Hagio
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - S J Park
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - J Demanes
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
| | - A J Chang
- Department of Radiation Oncology, University of California, Los Angeles, Los Angeles, CA
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Park SJ, Kim JK, Kim HR, Kim T, Lee S, Kim GB, Yang DH, Kim JB. The result of prospective evaluation of 3-dimensional printing-aided extensive thoracoabdominal aorta repair. JTCVS Tech 2023; 20:1-9. [PMID: 37555043 PMCID: PMC10405161 DOI: 10.1016/j.xjtc.2023.04.011] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/11/2023] [Accepted: 04/20/2023] [Indexed: 08/10/2023] Open
Abstract
OBJECTIVES Paraplegia is a distressing complication after open thoracoabdominal aortic aneurysm (TAAA) repair, and revascularization of T8-L2-level segmental arteries is considered pivotal to prevent paraplegia. We employed 3-dimensional (3D) printing to efficiently revascularize segmental/visceral arteries and prospectively evaluated its safety and efficacy. METHODS From January 1, 2020, to June 30, 2022, we prospectively enrolled patients of extent I, II, or III TAAA repair. Guidance models were 3D-printed based on preoperative computed tomography, and multibranched aortic grafts were manually constructed upon this model before surgery. The composite outcome of operative mortality, permanent stroke, and permanent spinal cord deficit (SCD) was compared with the historical control group (n = 77, in 2015-2020), subjected to similar TAAA repair without 3D printing. RESULTS A total of 38 patients (58.6 ± 13.2 years) underwent open TAAA repair with the aid of 3D printing. Extent I, II, and III repairs were performed in 14 (36.8%), 17 (44.7%), and 7 (18.4%), respectively. Concomitant arch repair and bi-iliac reconstruction were performed in 7 (18.4%) and 6 patients (15.8%), respectively. Mean pump time was 107.7 ± 55.5 minutes. Operative mortality, permanent stroke, and permanent SCD each occurred in 1 patient (2.6%), and the incidence of the composite outcome was 7.9% (3/38). In the control group, mean pump time was 166.0 ± 83.9 minutes, significantly longer than the 3D-printing group (P < .001), and operative mortality, permanent stroke, permanent SCD, and the composite outcome occurred in 7 (9.1%), 9 (11.7%), 8 (10.4%), and 19 (24.7%), respectively. CONCLUSIONS Open repairs of extensive TAAA with 3D printing showed favorable safety and efficacy, which need further validation by larger studies.
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Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Jin Kyung Kim
- Department of Thoracic and Cardiovascular Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Hong Rae Kim
- Department of Thoracic and Cardiovascular Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Taehun Kim
- Department of Convergence Medicine, Asan Medical Institute of Convergence Science and Technology, University of Ulsan, Asan Medical Center, Seoul, Korea
| | | | - Guk Bae Kim
- Anymedi Inc (Product R&D Center), Seoul, Korea
| | - Dong Hyun Yang
- Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Min JO, Ho HA, Lee W, Jung BC, Park SJ, Kim S, Lee SJ. Statins suppress cell-to-cell propagation of α-synuclein by lowering cholesterol. Cell Death Dis 2023; 14:474. [PMID: 37500624 PMCID: PMC10374525 DOI: 10.1038/s41419-023-05977-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 06/27/2023] [Accepted: 07/11/2023] [Indexed: 07/29/2023]
Abstract
Cell-to-cell propagation of protein aggregates has been implicated in the progression of neurodegenerative diseases. However, the underlying mechanism and modulators of this process are not fully understood. Here, we screened a small-molecule library in a search for agents that suppress the propagation of α-synuclein and mutant huntingtin (mHtt). These screens yielded several molecules, some of which were effective against both α-synuclein and mHtt. Among these molecules, we focused on simvastatin and pravastatin. Simvastatin administration in a transgenic model of synucleinopathy effectively ameliorated behavioral deficits and α-synuclein accumulation, whereas pravastatin had no effect. Because only simvastatin enters the brain effectively, these results suggest that inhibition of brain cholesterol synthesis is important in simvastatin effects. In cultured cells, accumulation of intracellular cholesterol, induced by genetic ablation of the NPC1 gene or by pharmacological treatment with U18666A, increased α-synuclein aggregation and secretion. In contrast, lowering cholesterol using methyl-β-cyclodextrin or statins reversed α-synuclein aggregation and secretion in NPC1-knockout cells. Consistent with these observations, feeding a high-fat diet aggravated α-synuclein pathology and behavioral deficits in the preformed fibril-injected mouse model, an effect that was also reversed by simvastatin administration. These results suggest that statins suppress propagation of protein aggregates by lowering cholesterol in the brain.
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Affiliation(s)
- Joo-Ok Min
- Department of Biomedical Sciences, Neuroscience Research Institute, Convergence Research Center for Dementia, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Hoang-Anh Ho
- Interdisciplinary Program in Neuroscience, College of Natural Sciences, Seoul National University, Seoul, Republic of Korea
| | - Wonjae Lee
- Department of Biomedical Sciences, Neuroscience Research Institute, Convergence Research Center for Dementia, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
- Neuramedy Co. Ltd, Seoul, Republic of Korea
| | - Byung Chul Jung
- Department of Biomedical Sciences, Neuroscience Research Institute, Convergence Research Center for Dementia, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
- Nutritional Sciences and Toxicology Department, University of California Berkeley, Berkeley, CA, USA
| | - Sung Jun Park
- Department of Biomedical Sciences, Neuroscience Research Institute, Convergence Research Center for Dementia, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | | | - Seung-Jae Lee
- Department of Biomedical Sciences, Neuroscience Research Institute, Convergence Research Center for Dementia, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.
- Neuramedy Co. Ltd, Seoul, Republic of Korea.
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11
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Kim HR, Park J, Park SJ, Kim HJ, Kim S, Kim YJ, Ahn JM, Kim DH, Kim JB. Bovine pericardial versus porcine bioprosthetic mitral valves: results from a Korean Nationwide Cohort Study. Eur J Cardiothorac Surg 2023; 63:ezad165. [PMID: 37115646 DOI: 10.1093/ejcts/ezad165] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 04/10/2023] [Accepted: 04/26/2023] [Indexed: 04/29/2023] Open
Abstract
OBJECTIVES Comparisons of long-term clinical outcomes of mitral valve replacement (MVR) between bovine pericardial and porcine bioprostheses are conflicting, with limited research in large-scale real-world clinical settings. This study examined clinical outcomes in MVR according to bioprosthesis type using a national administrative claims database. METHODS This study included adult patients undergoing bioprosthetic MVR between 2003 and 2018 using administrative health care data from the Korean National Health Insurance Service database. Propensity score matching with competing risk analysis was used to compare the clinical outcomes according to the type of bioprosthesis. The end points were death, cardiac death, and valve-related events, including the incidence of reoperation, endocarditis, systemic thromboembolism, and major bleeding. RESULTS A total of 3151 patients underwent bioprosthetic MVR with bovine pericardial (n = 1628, 51.7%) or porcine (n = 1523, 48.3%) bioprostheses. After matching, 1170 pairs were included in the final analysis. During follow-up (median 4.49 years, interquartile range 1.87 -8.75 years), death occurred in 1178 patients (6.8%/patient-year), comprising 730 (4.3%/patient-year) cardiac death. No significant differences were noted between the bovine and porcine groups in the cumulative incidences of death from any cause [adjusted hazard ratio (aHR), 1.00; 95% confidence interval (CI), 0.87-1.14], cardiac mortality (aHR, 0.96; 95% CI, 0.81-1.14), or reoperation (aHR, 1.01; 95% CI, 0.72-1.41). CONCLUSIONS This study on a nationwide comparison between bovine and porcine bioprostheses in MVR found no significant differences in clinical outcomes including mortality, and valve-related reoperation.
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Affiliation(s)
- Hong Rae Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jino Park
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
- Division of Cardiology, Department of Internal Medicine, Haeundae Paik Hospital, University of Inje College of Medicine, Busan, Republic of Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Guro Hospital, Korea University Medical Center, Seoul, Republic of Korea
| | - Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Seonok Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ye-Jee Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jung-Min Ahn
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Dae-Hee Kim
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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12
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Park SJ, Ok YJ, Kim HJ, Kim YJ, Kim S, Ahn JM, Kim DH, Choi JS, Kim JB. Evaluating Reference Ages for Selecting Prosthesis Types for Heart Valve Replacement in Korea. JAMA Netw Open 2023; 6:e2314671. [PMID: 37213100 DOI: 10.1001/jamanetworkopen.2023.14671] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/23/2023] Open
Abstract
Importance Although a patient's age may be the only objective figure that can be used as a reference indicator in selecting the type of prosthesis in heart valve surgery, different clinical guidelines use different age criteria. Objective To explore the age-associated survival-hazard functions associated with prosthesis type in aortic valve replacement (AVR) and mitral valve replacement (MVR). Design, Setting, and Participants This cohort study compared the long-term outcomes associated with mechanical and biologic prostheses in AVR and MVR according to recipient's age using a nationwide administrative data from the Korean National Health Insurance Service. To reduce the potential treatment-selection bias between mechanical and biologic prostheses, the inverse-probability-of-treatment-weighting method was used. Participants included patients who underwent AVR or MVR in Korea between 2003 and 2018. Statistical analysis was performed between March 2022 and March 2023. Exposures AVR, MVR, or both AVR and MVR with mechanical or biologic prosthesis. Main Outcomes and Measures The primary end point was all-cause mortality after receiving prosthetic valves. The secondary end points were the valve-related events, including the incidence of reoperation, systemic thromboembolism, and major bleeding. Results Of the total of 24 347 patients (mean [SD] age, 62.5 [7.3] years; 11 947 [49.1%] men) included in this study, 11 993 received AVR, 8911 received MVR, and 3470 received both AVR and MVR simultaneously. Following AVR, bioprosthesis was associated with significantly greater risks of mortality than mechanical prosthesis in patients younger than 55 years (adjusted hazard ratio [aHR], 2.18; 95% CI, 1.32-3.63; P = .002) and in those aged 55 to 64 years (aHR, 1.29; 95% CI, 1.02-1.63; P = .04), but the risk of mortality reversed in patients aged 65 years or older (aHR, 0.77; 95% CI, 0.66-0.90; P = .001). For MVR, the risk of mortality was also greater with bioprosthesis in patients aged 55 to 69 years (aHR, 1.22; 95% CI, 1.04-1.44; P = .02), but there was no difference for patients aged 70 years or older (aHR, 1.06; 95% CI, 0.79-1.42; P = .69). The risk of reoperation was consistently higher with bioprosthesis, regardless of valve position, in all age strata (eg, MVR among patients aged 55-69 years: aHR, 7.75; 95% CI, 5.14-11.69; P < .001); however, the risks of thromboembolism and bleeding were higher in patients aged 65 years and older after mechanical AVR (thromboembolism: aHR, 0.55; 95% CI, 0.41-0.73; P < .001; bleeding: aHR, 0.39; 95% CI, 0.25-0.60; P < .001), with no differences after MVR in any age strata. Conclusions and Relevance In this nationwide cohort study, the long-term survival benefit associated with mechanical prosthesis vs bioprosthesis persisted until age 65 years in AVR and age 70 years in MVR.
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Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - You Jung Ok
- Department of Thoracic and Cardiovascular Surgery, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ye-Jee Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seonok Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung-Min Ahn
- Divison of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Dae-Hee Kim
- Divison of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae-Sung Choi
- Department of Thoracic and Cardiovascular Surgery, SMG-SNU Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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13
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Park SJ, Kim H, Piao M, Kang HJ, Fassah DM, Jung DJS, Kim SY, Na SW, Beak SH, Jeong IH, Yoo SP, Hong SJ, Lee DH, Lee SH, Haque MN, Shin DJ, Kwon JA, Jo C, Baik M. Effects of genomic estimated breeding value and dietary energy to protein ratio on growth performance, carcass trait, and lipogenic gene expression in Hanwoo steer. Animal 2023; 17:100728. [PMID: 36870258 DOI: 10.1016/j.animal.2023.100728] [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: 12/01/2021] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/12/2023] Open
Abstract
"Genome-based precision feeding" is a concept that involves the application of customised diets to different genetic groups of cattle. We investigated the effects of the genomic estimated breeding value (gEBV) and dietary energy to protein ratio (DEP) on growth performance, carcass traits, and lipogenic gene expression in Hanwoo (Korean cattle) steers. Forty-four Hanwoo steers (BW = 636 kg, age = 26.9 months) were genotyped using the Illumina Bovine 50 K BeadChip. The gEBV was calculated using genomic best linear unbiased prediction. Animals were separated into high gEBV of marbling score or low-gMS groups based on the upper and lower 50% groupings of the reference population, respectively. Animals were assigned to one of four groups in a 2 × 2 factorial arrangement: high gMS/high DEP (0.084 MJ/g), high gMS/low DEP (0.079 MJ/g), low gMS/high DEP, and low gMS/low DEP. Steers were fed concentrate with a high or low DEP for 31 weeks. The BW tended to be higher (0.05 < P < 0.1) in the high-gMS groups compared to the low-gMS groups at 0, 4, 8, 12, and 20 weeks. The average daily gain (ADG) tended to be lower (P = 0.08) in the high-gMS group than in the low-gMS group. Final BW and measured carcass weight (CW) were positively correlated with the gEBV of carcass weight (gCW). The DEP did not affect ADG. Neither the gMS nor the DEP affected the MS and beef quality grade. The intramuscular fat (IMF) content in the longissimus thoracis (LT) tended to be higher (P = 0.08) in the high-gMS groups than in the low-gMS groups. The mRNA levels of lipogenic acetyl-CoA carboxylase and fatty acid binding protein 4 genes in the LT were higher (P < 0.05) in the high-gMS group than in the low-gMS group. Overall, the IMF content tended to be affected by the gMS, and the genetic potential (i.e., gMS) was associated with the functional activity of lipogenic gene expression. The gCW was associated with the measured BW and CW. The results demonstrated that the gMS and the gCW may be used as early prediction indexes for meat quality and growth potential of beef cattle.
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Affiliation(s)
- S J Park
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - H Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - M Piao
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - H J Kang
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D M Fassah
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D J S Jung
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S Y Kim
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S W Na
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S-H Beak
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - I H Jeong
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S P Yoo
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - S J Hong
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D H Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - S H Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - M N Haque
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - D-J Shin
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - J A Kwon
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - C Jo
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Institutes of Green Bio Science Technology, Pyeongchang-daero, Daehwa-myeon, Pyeongchang-gun, Gangwon 25354, Republic of Korea
| | - M Baik
- Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Institutes of Green Bio Science Technology, Pyeongchang-daero, Daehwa-myeon, Pyeongchang-gun, Gangwon 25354, Republic of Korea.
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14
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Park SJ, Kim JB. Unsolved issues in acute type A aortic dissection. Asian Cardiovasc Thorac Ann 2023; 31:32-36. [PMID: 35291827 DOI: 10.1177/02184923221083365] [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] [Indexed: 11/17/2022]
Abstract
Surgery for acute type A aortic dissection remains challenging with considerable mortality and morbidity despite the remarkable advances in this field. Particularly, surgical outcomes of acute type A aortic dissection are known to be associated with the hospital volume. The optimal cerebral protective method and extent of surgery have been long-standing controversies in acute type A aortic dissection surgery. Given that data from randomized trial are not available and future trials are also unrealistic, observational data based on large registry or meta-analyses may alternatively provide reliable and reasonable evidence. With regard to neuroprotective methods for arch repair, currently available observational data strongly suggest that there are no overt superiority among unilateral-antegrade cerebral perfusion, bilateral-antegrade cerebral perfusion, and retrograde cerebral perfusion, by which their availabilities are still open in real clinical practices depending on institutional preferences. When deciding the extent of arch repair in acute DeBakey type I aortic dissection, multiple factors should be considered altogether such as aortic anatomic characteristics as well as patient's risk profiles for optimizing early safety and late aortic longevity.
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Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, 65542Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, 65526Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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15
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Kim TK, Bae EJ, Jung BC, Choi M, Shin SJ, Park SJ, Kim JT, Jung MK, Ulusoy A, Song MY, Lee JS, Lee HJ, Di Monte DA, Lee SJ. Inflammation promotes synucleinopathy propagation. Exp Mol Med 2022; 54:2148-2161. [PMID: 36473937 PMCID: PMC9794777 DOI: 10.1038/s12276-022-00895-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 09/27/2022] [Accepted: 10/05/2022] [Indexed: 12/12/2022] Open
Abstract
The clinical progression of neurodegenerative diseases correlates with the spread of proteinopathy in the brain. The current understanding of the mechanism of proteinopathy spread is far from complete. Here, we propose that inflammation is fundamental to proteinopathy spread. A sequence variant of α-synuclein (V40G) was much less capable of fibril formation than wild-type α-synuclein (WT-syn) and, when mixed with WT-syn, interfered with its fibrillation. However, when V40G was injected intracerebrally into mice, it induced aggregate spreading even more effectively than WT-syn. Aggregate spreading was preceded by sustained microgliosis and inflammatory responses, which were more robust with V40G than with WT-syn. Oral administration of an anti-inflammatory agent suppressed aggregate spreading, inflammation, and behavioral deficits in mice. Furthermore, exposure of cells to inflammatory cytokines increased the cell-to-cell propagation of α-synuclein. These results suggest that the inflammatory microenvironment is the major driver of the spread of synucleinopathy in the brain.
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Affiliation(s)
- Tae-Kyung Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
- Department of Exercise Physiology and Sport Science Institute, Korea National Sport University, Seoul, 05541, Korea
| | - Eun-Jin Bae
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
- Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Byung Chul Jung
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
- Nutritional Sciences and Toxicology Department, University of California Berkeley, Berkeley, CA, 94720, USA
| | - Minsun Choi
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Soo Jean Shin
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Sung Jun Park
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Jeong Tae Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Min Kyo Jung
- Neural Circuits Research Group, Korea Brain Research Institute, Daegu, 41068, Korea
| | - Ayse Ulusoy
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Mi-Young Song
- Department of Biomedical Science and Technology, Konkuk University, Seoul, 143-701, Korea
- IPS Intellectual Property Law Firm, Seoul, Korea
| | - Jun Sung Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea
- Neuramedy Co. Ltd., Seoul, South Korea
| | - He-Jin Lee
- Department of Anatomy, Konkuk University, Seoul, 05029, Korea
- IBST, Konkuk University, Seoul, 05029, Korea
| | | | - Seung-Jae Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Korea.
- Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, South Korea.
- SNU Dementia Research Center, Seoul National University College of Medicine, Seoul, South Korea.
- Neuramedy Co. Ltd., Seoul, South Korea.
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Lee YH, Kim SM, Kim EK, Park SJ, Lee SC, Park SW, Jeong DS, Chang SA. Pattern of pericardial calcification determines the mid-term postoperative outcome after pericardiectomy in chronic constrictive pericarditis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1797] [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: 11/15/2022] Open
Abstract
Abstract
Background/Introduction
Although pericardiectomy is an effective treatment of constrictive pericarditis (CP), clinical outcome is not always successful. Pericardial calcification is a unique finding in CP. However, the amount and localization of calcification vary. Computer tomography (CT) can visualize the pericardial calcification with high sensitivity and provide the anatomical assessment.
Purpose
We investigated that how the pattern and amount of pericardial calcification affect the mid-term postoperative outcome after pericardiectomy in CP.
Methods
All of the patients who underwent total pericardiectomy in our hospital from 2010 to 2020 were derived from electrical medical records (n=105). Among them, preoperative CT scans (non-gated non-contrast) of 98 patients were available and, thus, 98 consecutive patients were finally analyzed. Medical records were reviewed in a retrospective manner. Cardiovascular event is defined as cardiovascular death or hospitalization associated with a heart failure symptom and all cause event is defined as all events that require admission. CT scan was analyzed by Aquarius Workstation, and the volume and localization pattern of pericalcification were derived. Pericardium calcium score was given as an Agatston score.
Results
Of 98 patients, 25 (25.5%) patients were hospitalized with heart failure symptom after pericardiectomy. Median follow up duration of patients is 172 weeks. A group with cardiovascular event had higher NYHA grade (P<0.001), lower calcium volume (P=0.004), and lower calcium score (P=0.01). Multivariate cox proportional analysis showed that high ln(calcium score) before pericardiectomy was dependent predictor of cardiovascular event (hazard ratio, 0.90; P=0.04) and all cause event (hazard ratio, 0.91, P=0.04) after pericardiectomy. When we set the cut off value at 7.22, based on ROC curve, there was a significant difference in cardiovascular event between the groups divided by this cutoff value in Kaplan-Meier curve (P=0.002) and multivariate cox proportional analysis (P=0.04). In the subgroup analysis, myocardium invasion and circumferential calcification were more common in the high calcium score group. Idiopathic & tuberculosis pericarditis were more associated with high calcium score group and post-operative pericarditis, other reasons (infection, radiation, etc) were more associated with low calcium group.
Conclusion
Low burden of pericardial calcification was associated high rate of mid-term clinical event after pericardiectomy CP. Preoperative evaluation of pericardial calcification pattern can be used as predictor of postoperative outcomes.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y H Lee
- Sungkyunkwan University School of Medicine , Seoul , Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Department of Radiology , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S C Lee
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
| | - D S Jeong
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Department of Thoracic and Cardiovascular Surgery , Seoul , Korea (Republic of)
| | - S A Chang
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Division of Cardiology, Department of Internal Medicine , Seoul , Korea (Republic of)
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Lee HJ, Park CS, Lee S, Park JB, Kim HK, Park SJ, Kim YJ, Lee SP. Systemic proinflammatory-profibrotic response in aortic stenosis patients with diabetes and its relationship with myocardial remodeling and clinical outcome. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1621] [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: 11/12/2022] Open
Abstract
Abstract
Background
It is unclear whether and how diabetes mellitus may aggravate myocardial fibrosis and remodeling in the pressure-overloaded heart. We investigated the impact of diabetes on the prognosis of aortic stenosis (AS) patients and its underlying mechanisms using comprehensive noninvasive imaging studies and plasma proteomics.
Methods
Severe AS patients undergoing both echocardiography and cardiovascular magnetic resonance (CMR) (n=253 of which 66 had diabetes) comprised the imaging cohort. The degree of replacement and diffuse interstitial fibrosis by late gadolinium enhancement (LGE) and extracellular volume fraction (ECV) was quantified using CMR. Plasma samples were analyzed with the multiplex proximity extension assay for 92 proteomic biomarkers in a separate biomarker cohort of severe AS patients (n=100 of which 27 had diabetes).
Results
In the imaging cohort, diabetic patients were older (70.4±6.8 vs. 66.7±10.1 years) and had a higher prevalence of ischemic heart disease (28.8% vs. 9.1%), with more advanced ventricular diastolic dysfunction. On CMR, diabetic patients had increased replacement and diffuse interstitial fibrosis (LGE% 0.3 [0.0–1.6] versus 0.0 [0.0–0.5], p=0.009; ECV% 27.9 [25.7–30.1] versus 26.7 [24.9–28.5], p=0.025) (Figure 1).
Plasma proteomics analysis of the biomarker cohort revealed that 9 proteins (E-selectin, interleukin-1 receptor type 1, interleukin-1 receptor type 2, galectin-4, intercellular adhesion molecule 2, integrin beta-2, galectin-3, growth differentiation factor 15, and cathepsin D) are significantly elevated in diabetic AS patients (Figure 2). Pathway over-representation analyses of the plasma proteomics with Gene Ontology terms indicated that pathways related to inflammatory response and extracellular matrix components were enriched, suggesting that diabetes is associated with systemic effects that evoke proinflammatory and profibrotic response to the pressure-overloaded myocardium.
During follow-up (median 6.3 years [IQR 5.2–7.2]) of the imaging cohort, 232 patients received aortic valve replacement (AVR) with 53 unexpected heart failure admissions or death. Diabetes was a significant predictor of heart failure and death, independent of clinical covariates and AVR (hazard ratio 1.88, 95% confidence interval 1.06–3.31, p=0.030).
Conclusion
Plasma proteomic analyses indicate that diabetes potentiates the systemic proinflammatory and profibrotic milieu in AS patients. These systemic biological changes underlie the increase of myocardial fibrosis, diastolic dysfunction, and worse clinical outcomes in severe AS patients with concomitant diabetes.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): National Research Foundation of Korea
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Affiliation(s)
- H J Lee
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - C S Park
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - S Lee
- Asan Medical Center, Internal Medicine , Seoul , Korea (Republic of)
| | - J B Park
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - H K Kim
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiovascular Imaging Center , Seoul , Korea (Republic of)
| | - Y J Kim
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
| | - S P Lee
- Seoul National University Hospital, Internal Medicine , Seoul , Korea (Republic of)
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18
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Kim MS, Jeon KN, Lee SC, Yang JH, Kim EK, Park SJ, Park SW, Chang SA. Role of combined exercise stress echocardiography and cardiopulmonary exercise test in chronic thromboembolic disease. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1879] [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
Background
Chronic thromboembolic pulmonary disease (CTEPD) without pulmonary hypertension could cause significant exercise limitations. However, interventional or surgical treatments for CTEPD with mild pulmonary hypertension or normal pressure are on controversy.
Purpose
We aimed to evaluate cardiopulmonary function through cardiopulmonary exercise test (CPET) with stress echocardiography and to determine whether exercise pulmonary hypertension can explain exercise limitations in CTEPD patients with mPAP <30mmHg.
Methods
Patients diagnosed as CTEPD with mPAP less than 30mmHg was derived from our pulmonary hypertension center registry from April 2014 to October 2021.Transthoracic echocardiography (TTE) was performed at baseline (resting state) and immediately after CPET. TTE derived parameters and CPET parameters were compared with hemodynamic parameters measured by right catheterization.
Results
Total 37 patients were enrolled. Of these, Thirty-five patients had previously been diagnosed with CTEPH and had undergone PEA, BPA, or both. Most of the patients complained dyspnea of WHO functional class II or III. Pulmonary vascular resistance (PVR) was slightly higher than normal (185.0±102.2 dyne sec cm–5). Also VO2max was decreased in CPET (23.1±6.5 mL/kg/min). In correlation analysis, the higher the mPAP and PVR at rest, the lower VO2max during exercise. Meanwhile basal right ventricular (RV) function was normal, an increase in RVSP was notably observed during exercise (RVSP: pre-exercise 36.2±11.9, post-exercise 60.7±19.3, p value <0.001). Furthermore RV function deteriorated during exercise (TAPSE: pre-exercise 16.1±4.8, post-exercise 12.9±5.0, p value <0.001).
Conclusions
CTEPD patients with mild or normal PAP showed limited exercise capacity with exercise induced hypertension. Even in the mPAP less than 30mmHg, PVR and mPAP was significantly associated with exercise capacity. CPET with stress echocardiography could help to identify the main cause of exercise limitation in CTEPD patients and possibly provide the guideline for treatment plan.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M S Kim
- Samsung Changwon Hospital , Changwon , Korea (Republic of)
| | - K N Jeon
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - S C Lee
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - J H Yang
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - S W Park
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
| | - S A Chang
- Samsung Medical Center, Cardiology , Seoul , Korea (Republic of)
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19
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Bak M, Choi KH, Kim JH, Park TK, Kim EK, Kim SM, Choi SH, Park SJ. Risk factors and clinical effects of late leaflet thrombosis after transcatheter aortic valve replacement. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1569] [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
Background
As the indications for trans-catheter aortic valve replacement (TAVR) expand, it is expected that the number of TAVR patients would increase and the follow-up duration would be longer. It is known that the incidence of leaflet thrombosis is higher in TAVR than in surgical aortic valve replacement (SAVR), but not much is known about the risk factors of late leaflet thrombosis in TAVR.
Aim
Therefore, in this study, the incidence and risk factors of late leaflet thrombosis at late term after TAVR and the effect on clinical course of late leaflet thrombosis would be investigated.
Method
There were 176 patients undergone TAVR from January 2015 to October 2020 in one tertiary hospital of south korea. 94 patients had follow-up cardiovascular computed tomography (CT) between 3 months and 2 years after TAVR. Among 94 patients, late leaflet thrombosis was discovered at 20 patients, and risk factors were analyzed by comparing clinical factors, echocardiographic and cardiovascular CT information, and angiographic data between the group with and without late leaflet thrombosis. And the difference in aortic valve hemodynamics between the group with and without leaflet thrombosis was examined and clinical outcomes were compared. Clinical outcome was defined as the composite of all-cause death, stroke, heart failure (HF) admission, redo-aortic valve (AV) replacement and major bleeding after detection of late leaflet thrombosis.
Results
Indexed mean sinus of Valsalva diameter, AV calcium score and post procedure estimated orifice area (EOA) had predictability of late leaflet thrombosis with AUC value of 0.670 (95% CI [0.546–0.795], p value = 0.020), AUC value of 0.698 (95% CI [0.544–0.851], p value = 0.012) and AUC value of 0.665 (95 percent CI [0.548–0.782], p value = 0.031), respectively (Figure 1).
In echocardiography performed at the time of follow-up CT, AV max velocity and AV mean pressure gradient were higher in thrombosis group and EOA and Doppler velocity index were lower in thrombosis group than in no thrombosis group within normal range (Figure 2). Clinical outcome was not significant different between the two groups (log rank p value = 0.560).
Conclusion
Larger indexed sinus of Valsalva diameter, higher AV calcium score and smaller post procedure AV EOA were risk factors for late leaflet thrombosis after TAVR. Subclinical late leaflet thrombosis have a benign course when properly managed.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Bak
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - K H Choi
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - J H Kim
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - T K Park
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - E K Kim
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - S M Kim
- Samsung Medical Center, Department of Radiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
| | - S H Choi
- Samsung Medical Center , Seoul , Korea (Republic of)
| | - S J Park
- Samsung Medical Center, Division of Cardiology, Cardiovascular Imaging Center, Heart Vascular Stroke Institute , Seoul , Korea (Republic of)
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20
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Jin U, Park SJ, Park SM. Critical roles of Parkin and PINK1 in antiviral immunity and protection from cell death in Enterovirus-induced viral myocarditis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1067] [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
Background
Myocarditis is an inflammatory disease of the heart muscle often resulting in cardiac dysfunction and death. One of the most common causes is a cardiac infection with viruses, especially with enteroviruses of the Coxsackievirus B (CVB) family. CVB3-induced viral myocarditis is a well-established model to elucidate viral myocarditis in mice. It is assumed that mitochondrial damage control and mitochondria-associated innate immunity is essential for defence against viral infection of the heart muscle. And Parkinson's disease genes Parkin and PINK1 are well known for their critical function in mitochondrial homeostasis and damage control. We investigated the roles of Parkin and PINK1 in CVB3-induced viral myocarditis mouse model.
Material and methods
Male C57BL/6J WT, Parkin KO and PINK1 KO mice were used in an age of 8 to 12 weeks. The animals were injected intraperitoneally with 1x104 plaque forming units of CVB3 diluted in phosphate-buffered saline. Control and survived virus-infected mice were sacrificed for tissue sampling at day 7 to investigate imaging and molecular workup.
Result
After virus inoculation, the Parkin KO and PINK1 KO groups showed a significantly lower 28-day survival rate compared with the WT group (p<0.001 in Parkin KO; p<0.001 in PINK1 KO). Evans-Blue Dye (EBD) staining image of day 7 after virus-infection showed that the hearts of Parkin KO and PINK1 KO mice were more severely damaged than the hearts of WT mice (3.2-fold, p<0.01 in Parkin KO; 2.6-fold, p<0.05 in PINK1 KO). H&E staining showed that severe inflammatory reaction occurred in the hearts of WT mice, although the inflammatory reaction was much lower compared to WT in the hearts of Parkin KO and PINK1 KO mice (p<0.001 in Parkin KO; p<0.001 in PINK1 KO). In immunohistochemistry, EBD staining positive area colocalized well with CVB3 in Parkin KO and PINK1 KO mice hearts, although EBD staining positive area was rare and didn't colocalized well CVB3 in WT mice hearts. mRNA levels of cell markers (CD3, natural cytotoxicity receptors, F4/80), inflammatory cytokines (IL-1β, IL-6, TNF-α), type II interferon, macrophage-derived protective factors, and CXCL10 family cytokines were lower in virus-infected Parkin/PINK1 KO mice than WT mice. Western blots showed that phospho-p65 increased less than WT in the heart of Parkin KO (0.7-fold, p<0.05) and PINK1 KO mice (0.58-fold, p<0.05).
Conclusion
The Parkin KO and PINK1 KO mice showed a higher mortality rate and more severe cardiomyocyte damage than the WT mice in the viral myocarditis mouse model. Parkin and PINK1 is critical to the type II IFN pathway that inhibits virus replication. And Parkin and PINK1 play an important role in the recruitment of IFN-γ-producing lymphocytes through NF-κB pathway and CXCL10 family chemokines.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- U Jin
- Ajou University Hospital, Department of Cardiology , Suwon , Korea (Republic of)
| | - S J Park
- Asan Medical Center, Department of Thoracic and Cardiovascular Surgery , Seoul , Korea (Republic of)
| | - S M Park
- Ajou University School of Medicine, Department of Pharmacology , Suwon , Korea (Republic of)
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21
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Lee KH, Li H, Lee MH, Park SJ, Kim JS, Han YJ, Cho K, Ha B, Kim SJ, Jacob L, Koyanagi A, Shin JI, Kim JH, Smith L. Clinical characteristics and treatments of multi-system inflammatory syndrome in children: a systematic review. Eur Rev Med Pharmacol Sci 2022; 26:3342-3350. [PMID: 35587087 DOI: 10.26355/eurrev_202205_28754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Multisystem inflammatory syndrome in children (MIS-C) can occur in association with coronavirus disease 2019 (COVID-19). It is not easy to differentiate MIS-C from severe COVID-19 or Kawasaki disease based on symptoms. The aim of this study was to describe the clinical and laboratory characteristics of MIS-C. PATIENTS AND METHODS We searched PubMed/Medline for case series and reports of MIS-C published until June 20, 2020. From a total of nine articles involving 45 cases, various clinical and laboratory data were extracted. Each target case was evaluated by using different diagnostic criteria. RESULTS The average age at onset of MIS-C was 8.6 years. In 80% of cases, the age of patients ranged from 5 to 15 years. Fever (100%) and shock (82%) were the most common presenting symptoms. Sixty percent of cases met the diagnostic criteria for typical or atypical Kawasaki disease. Biomarkers indicative of inflammation, coagulopathy, or cardiac injury were characteristically elevated as follows: ferritin (mean: 1,061 ng/mL), CRP (217 mg/L), ESR (69 mm/hr), IL-6 (214.8 pg/mL), TNFα (63.4 pg/mL), D-dimer (3,220 ng/mL), PT (15.5 s), troponin I (1,006 ng/L), and BNP (12,150 pg/mL). Intravenous immunoglobulin was administered in all target cases, and inotropic agents were commonly used as well. No case of death was observed. CONCLUSIONS This study demonstrated that MIS-C is a serious condition that presents with fever, rash, as well as cardiovascular and gastrointestinal symptoms. Although it is challenging to differentiate MIS-C from Kawasaki disease or severe COVID-19, initiation of appropriate treatments through early diagnosis is warranted.
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Affiliation(s)
- K H Lee
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
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22
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Han DY, Park SJ, Jung SH. Left Ventricular Enlargement Procedure in a Patient with Diffuse-Type Hypertrophic Cardiomyopathy: A Case Report. J Chest Surg 2022; 55:180-182. [PMID: 35193118 PMCID: PMC9005944 DOI: 10.5090/jcs.21.114] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 11/24/2022] Open
Abstract
Surgical septal myectomy is the preferred treatment option for patients with medically intractable obstructive hypertrophic cardiomyopathy. Extended transaortic septal myectomy is a widely performed surgical procedure for patients with subaortic obstruction. The transapical approach may provide an alternative surgical option in less common phenotypes, such as apical hypertrophy or long-segmental septal hypertrophy. In this report, we describe a case of a procedure performed to achieve left ventricular enlargement procedure using a combined transaortic and transapical dual approach in a patient with diffuse-type hypertrophic cardiomyopathy with apical aneurysm and mid-cavity obstruction.
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Affiliation(s)
- Dong Youb Han
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Sung-Ho Jung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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23
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Han DY, Park SJ, Kim HJ, Jung SH, Choo SJ, Chung CH, Lee JW, Kim JB. Bioprosthesis in the Mitral Position: Bovine Pericardial versus Porcine Xenograft. J Chest Surg 2022; 55:69-76. [PMID: 35115425 PMCID: PMC8824645 DOI: 10.5090/jcs.21.103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 09/08/2021] [Revised: 12/09/2021] [Accepted: 12/14/2021] [Indexed: 12/01/2022] Open
Abstract
Background While the use of bioprosthetic valves for mitral valve replacement (MVR) is increasing, very few studies have compared bovine pericardial and porcine valves in the mitral position to help guide bioprosthetic selection. Methods In the present study, patients who underwent MVR using bovine pericardial valves were compared with those who underwent MVR with porcine bioprostheses between January 1996 and July 2018. Those with prior MVR, infective endocarditis, congenital mitral valve disease, or ischemic mitral regurgitation were excluded. The primary outcomes were structural valve deterioration (SVD) and mitral valve reoperation from any cause, and death was regarded as a competing risk. Competing risk analysis and propensity score-matching were used for comparisons. Results Among the 388 patients enrolled, pericardial and porcine bioprostheses were implanted in 217 (55.9%) and 171 (44.1%), respectively. Propensity score-matching yielded 122 pairs of patients that were well-balanced for all baseline covariates. No significant differences were observed between the groups in unadjusted (p=0.09) and adjusted overall survival (hazard ratio [HR], 1.13; 95% confidence interval [CI], 0.72–1.76; p=0.60). Competing risk analysis revealed no significant differences in the risks of mitral reoperation (HR, 1.07; 95% CI, 0.50–2.27; p=0.86) and development of SVD (HR, 1.57; 95% CI, 0.56–4.36; p=0.39) between the groups. Matched population analysis confirmed similar results regarding reoperation (HR, 0.99; 95% CI, 0.40–3.22; p=0.98) and SVD (HR, 1.39; 95% CI, 0.41–4.73; p=0.60). Conclusion No significant differences in survival or valve durability were observed between bovine pericardial and porcine bioprosthetic MVR. These findings require further validation through studies with larger sample sizes.
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Affiliation(s)
- Dong Youb Han
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung-Ho Jung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Suk Jung Choo
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Cheol Hyun Chung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Won Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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24
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Kim J, Jang H, Lee GJ, Hur Y, Keum J, Jo JK, Yun SE, Park SJ, Park YJ, Choi MJ, Kim KS, Kim J. A Novel Kinase Inhibitor AX-0085 Inhibits Interferon-γ-Mediated Induction of PD-L1 Expression and Promotes Immune Reaction to Lung Adenocarcinoma Cells. Cells 2021; 11:19. [PMID: 35011581 PMCID: PMC8750969 DOI: 10.3390/cells11010019] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/14/2021] [Accepted: 12/17/2021] [Indexed: 12/14/2022] Open
Abstract
In this study, we describe a novel kinase inhibitor AX-0085 which can suppress the induction of PD-L1 expression by Interferon-γ (IFN-γ) in lung adenocarcinoma (LUAD) cells. AX-0085 effectively blocks JAK2/STAT1 signaling initiated by IFN-γ treatment and prevents nuclear localization of STAT1. Importantly, we demonstrate that AX-0085 reverses the IFN-γ-mediated repression of T cell activation in vitro and enhances the anti-tumor activity of anti-PD-1 antibody in vivo when used in combination. Finally, transcriptomic analyses indicated that AX-0085 is highly specific in targeting the IFN-γ-pathway, thereby raising the possibility of applying this reagent in combination therapy with checkpoint inhibitor antibodies. It may be particularly relevant in cases in which PD-L1-mediated T cell exhaustion leads to immunoevasive phenotypes.
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Affiliation(s)
- Jusong Kim
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
| | - Haeyeon Jang
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
| | - Gyu Jin Lee
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
| | - Yelim Hur
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
| | - Juhee Keum
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
| | - Jung Ki Jo
- Department of Urology, College of Medicine, Hanyang University, Seoul 04763, Korea;
| | - Si-Eun Yun
- R&D Center, Axceso Biopharma Co., Ltd., Yongin 14056, Korea; (S.-E.Y.); (S.J.P.); (Y.J.P.); (M.J.C.)
| | - Sung Jun Park
- R&D Center, Axceso Biopharma Co., Ltd., Yongin 14056, Korea; (S.-E.Y.); (S.J.P.); (Y.J.P.); (M.J.C.)
| | - Young Jun Park
- R&D Center, Axceso Biopharma Co., Ltd., Yongin 14056, Korea; (S.-E.Y.); (S.J.P.); (Y.J.P.); (M.J.C.)
| | - Myeong Jun Choi
- R&D Center, Axceso Biopharma Co., Ltd., Yongin 14056, Korea; (S.-E.Y.); (S.J.P.); (Y.J.P.); (M.J.C.)
| | - Kye-Seong Kim
- Graduate School of Biomedical Science and Engineering, Hanyang University, Seoul 04763, Korea;
- Hanyang Biomedical Research Institute, College of Medicine, Hanyang University, Seoul 04763, Korea
| | - Jaesang Kim
- Department of Life Science, Ewha Womans University, Seoul 03760, Korea; (J.K.); (H.J.); (G.J.L.); (Y.H.); (J.K.)
- Ewha Research Center for Systems Biology, Ewha Womans University, Seoul 03760, Korea
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25
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Kim YJ, Park SJ, Shin SY, Hong J. Removed 5-Year-Old Amulet Device: Triplet of Peridevice Leakage, Poor Endothelialization, and Device-Related Thrombus. JACC Cardiovasc Interv 2021; 14:2405-2406. [PMID: 34454861 DOI: 10.1016/j.jcin.2021.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 06/30/2021] [Accepted: 07/06/2021] [Indexed: 11/19/2022]
Affiliation(s)
- Young Jin Kim
- Department of Thoracic & Cardiovascular Surgery, Konyang University Hospital, Daejeon, Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Seoul, Korea
| | - Seung Yong Shin
- Department of Cardiology, Chung-Ang University Hospital, Seoul, Korea
| | - Joonhwa Hong
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Seoul, Korea.
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26
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Lee HJ, Jeong GH, Li H, Kim MS, Kim JS, Park SJ, Han YJ, Lee KH, Kronbichler A, Hong SH, Ghayda RA, Luchini C, Nottegar A, Koyanagi A, Smith L, Jacob L, Dragioti E, Radua J, Cargnin S, Terrazzino S, Thompson T, Yon DK, Lee SW, Yang JM, Wasuwanich P, Shin JI, Gamerith G. Efficacy and safety of epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) monotherapy for advanced EGFR-mutated non-small cell lung cancer: systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2021; 25:6232-6244. [PMID: 34730203 DOI: 10.26355/eurrev_202110_26993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE It is controversial whether there is efficacy or safety benefit of epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) in advanced EGFR-mutated non-small cell lung cancer (NSCLC) compared to standard chemotherapy. We aim to assess the efficacy and safety of EGFR-TKIs compared to other chemotherapeutics in EGFR-mutated NSCLC. MATERIALS AND METHODS Up to April 27th, 2020, PubMed, Embase, Medline, Scopus, Cochrane library, and ClinicalTrials.gov were searched for articles or trials meeting the inclusion criteria. After filtering, 230 eligible studies were initially identified. Data extraction followed PRISMA and included outcomes were progression-free survival (PFS), overall survival (OS), and severe adverse events (SAEs). Direct and indirect meta-analyses were generated in the context of log-linear mixed-effects models, with fixed effects for each relative comparison and random effects for each study. RESULTS The results showed that EGFR-TKI therapy had improved PFS with a hazard ratio (HR) of 0.40 (95% CI: 0.36-0.44, p<0.001) compared to standard chemotherapy. Nevertheless, the EGFR-TKIs showed no benefit on OS (HR: 0.96, 95% CI: 0.83-1.10, p=0.556). In the analysis of adverse events, EGFR-TKIs had fewer SAEs than standard chemotherapy (HR: 0.29, 95% CI: 0.26-0.33, p<0.001). CONCLUSIONS Our systemic review indicates that EGFR-TKI therapy has improved PFS, and reduced SAEs compared to standard chemotherapy in advanced EGFR-mutated NSCLC.
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Affiliation(s)
- H J Lee
- Yonsei University College of Medicine, Seoul, Republic of Korea.
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Park SJ, Rhee Y, Lee CH, Kim HJ, Kim JB, Choo SJ, Lee JW. 3-Dimensional computed tomographic assessment predicts conduction block and paravalvular leakage after rapid-deployment aortic valve replacement. Eur J Cardiothorac Surg 2021; 61:899-907. [PMID: 34687534 DOI: 10.1093/ejcts/ezab431] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 07/30/2021] [Accepted: 08/19/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Complications like complete atrioventricular block (CAVB) and paravalvular leakage (PVL) following rapid deployment aortic valve (AV) replacement (RDAVR) remain unresolved. Selecting an optimal size of the valve might be important to minimize the incidence of these complications. We sought to determine the impact of prosthesis size relative to the anatomic profile of the AV on the occurrence of CAVB or PVL after RDAVR. METHODS Preoperative computed tomographic (CT) images were evaluated in patients receiving RDAVR (INTUITY ELITE) between February 2016 and December 2019. The occurrence of CAVB requiring permanent pacemaker implantation and PVL (≥ mild) was evaluated. The relative size of implants against the cross-sectional dimensions of recipients' AV annulus and left ventricular outflow tract (LVOT) were calculated. RESULTS Among 187 eligible patients, CAVB and PVL (≥ mild) occurred in 12 (6.4%) and 11 patients (5.9%), respectively. CAVB was associated with oversized RDAVR (RDAVR frame width minus average diameter of LVOT calculated from the cross-sectional area [ΔLVOTarea]: odds ratio, 2.05; 95% confidence interval, 1.28-3.30): this was with an area under the curve of 0.78 (P = 0.005). The projected probability of CAVB was <3% when the ΔLVOTarea was <1.3. In contrast, PVL was associated with under-sized RDAVR (RDAVR size divided by the longest diameter of AV annulus [index Annlong]: odds ratio, 0.64; 95% confidence interval, 0.51-0.79): This was with an area under curve of 0.94 (P < 0.001). CONCLUSIONS CT parameters of the AV annulus and LVOT are highly reliable in the prediction of CAVB or PVL after RDAVR. Our data might justify CT-based sizing of prosthesis for RDAVR.
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Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Younju Rhee
- Department of Thoracic and Cardiovascular Surgery, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, South Korea
| | - Chee-Hoon Lee
- Department of Thoracic and Cardiovascular Surgery, Pusan National University Yangsan Hospital, Medical Research Institute of Pusan National University, Busan, South Korea
| | - Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Suk Jung Choo
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jae Won Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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Han KH, Lee KH, Park SJ, Yu R, Kim SH, Lee IR, Han SY, Kim HS, Kronbichler A, Li H, Koyanagi A, Jacob L, Shin JI, Kim JH, Smith L. Hypocomplementemia (C3) as an independent predictor for children with acute post-streptococcal glomerulonephritis: a long-term observation. Eur Rev Med Pharmacol Sci 2021; 25:5674-5683. [PMID: 34604959 DOI: 10.26355/eurrev_202109_26786] [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] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The aim of this study was to examine the altering patterns in clinical characteristics and severity of acute post-streptococcal glomerulonephritis (APSGN) in children. PATIENTS AND METHODS We analyzed the medical records of 119 children who were diagnosed with APSGN from 1987 to 2018, retrospectively. The patients were divided into two groups: Group I (n=72, before 1998) and Group II (n=47, after 1998). Clinical, radiologic, and laboratory findings were compared between the two groups. RESULTS The clinical manifestations, including vomiting (20.8% vs. 4.3%, p=0.014), oliguria (40.3% vs. 19.1%, p=0.016), and generalized edema (86.1% vs. 63.8%, p=0.005), were statistically less frequent since 1998. Pulmonary edema on chest X-ray (22.7% vs. 4.4%, p=0.014) was less frequent in Group II than in Group I. The level of BUN (23.3±19.3 vs. 18.8±11.2, p=0.009) was lower in Group II than in Group I, while that of creatinine was not significantly different between the two groups. C3 level was an independent factor for predicting the development of edema (odds ratio [OR]: 1.034, 95% CI: 1.010-1.060, p=0.006) and acute nephritic symptoms (≥2) (OR: 0.974, 95% CI: 0.952-0996, p=0.020). It was also negatively correlated with an increasing number of acute nephritic symptoms, including oliguria and edema, in patients with APSGN (R=-0.182, p=0.048). CONCLUSIONS This study demonstrated that APSGN had favorable clinical manifestations and severity over the past 30 years. The monitoring of C3 levels can be used to assess the disease severity and risk of complications, including edema and oliguria, which are decreasing in South Korean children.
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Affiliation(s)
- K H Han
- Department of Pediatrics, Jeju National University School of Medicine, Jeju, Republic of Korea.
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Silic MR, Murata SH, Park SJ, Zhang G. Evolution of inwardly rectifying potassium channels and their gene expression in zebrafish embryos. Dev Dyn 2021; 251:687-713. [PMID: 34558132 DOI: 10.1002/dvdy.425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 07/11/2021] [Revised: 09/07/2021] [Accepted: 09/16/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Inwardly rectifying potassium channels are essential for normal potassium homeostasis, maintaining the cellular resting membrane potential, and regulating electrolyte transportation. Mutations in Kir channels have been known to cause debilitating diseases ranging from neurological abnormalities to renal and cardiac failures. Many efforts have been made to understand their protein structures, physiological functions, and pharmacological modifiers. However, their expression and functions during embryonic development remain largely unknown. RESULTS Using zebrafish as a model, we identified and renamed 31 kir genes. We also analyzed Kir gene evolution by phylogenetic and syntenic analyses. Our data indicated that the four subtypes of the Kir genes might have already evolved out in chordates. These vertebrate Kir genes most likely resulted from both whole-genome duplications and tandem duplications. In addition, we examined zebrafish kir gene expression during early embryogenesis. Each subgroup's genes showed similar but distinct gene expression domains. The gene expression of ohnologous genes from teleost-specific whole-genome duplication indicated subfunctionalization. Varied temporal gene expression domains suggest that Kir channels may be needed for embryonic patterning or regulation. CONCLUSIONS Our phylogenetic and developmental analyses of Kir channels shed light on their evolutionary history and potential functions during embryogenesis related to congenital diseases and human channelopathies.
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Affiliation(s)
- Martin R Silic
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
| | - Sarah Haruka Murata
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
| | - Sung Jun Park
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA
| | - GuangJun Zhang
- Department of Comparative Pathobiology, Purdue University, West Lafayette, Indiana, USA.,Purdue University Center for Cancer Research, Purdue University, West Lafayette, Indiana, USA.,Purdue Institute for Inflammation, Immunology and Infectious Diseases, Purdue University, West Lafayette, Indiana, USA.,Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, Indiana, USA
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Park SJ, Jo AJ, Kim HJ, Cho S, Ko MJ, Yun SC, Park DW, Kim JB. Real-World Outcomes of On- vs Off-Pump Coronary Bypass Surgery: Result from Korean Nationwide Cohort. Ann Thorac Surg 2021; 113:1989-1998. [PMID: 34400133 DOI: 10.1016/j.athoracsur.2021.07.035] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 05/27/2021] [Accepted: 07/07/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND While several randomized trials have shown conflicting results regarding the comparative effectiveness of on- and off-pump coronary arterial bypass grafting (CABG), research on long-term outcomes in large-scale, real-world clinical settings are limited. We sought to examine the comparative effectiveness of on- and off-pump CABG in a real-world clinical setting. METHODS Using the nationwide claims database of the Korean National Health Insurance Service, we identified patients who underwent isolated CABG from 2004 to 2013. Propensity-score matching with multivariable adjustment was used to assemble a cohort of patients with similar baseline characteristics. RESULTS Among 23,828 patients, 12,639 in the off-pump (53.0%) and 11,189 in the on-pump (47.0%) groups were enrolled. After matching, 6,483 pairs were included in the final analysis. At 30 days, there was no significant difference in adjusted mortality between the off- and on-pump groups (hazard ratio [HR], 1.00; 95% confidence interval [CI], 0.87-1.16). During long-term follow-up (100% complete; median 5.3yrs, maximum 13.2yrs), however, off-pump CABG was associated with a higher risk of mortality than on-pump CABG (HR, 1.09; 95% CI, 1.03-1.15). The risks of myocardial infarction (MI) (HR, 1.3; 95% CI, 1.16-1.45) and repeat revascularization (HR, 1.50; 95% CI, 1.37-1.63) were also significantly higher in the off-pump CABG group than in the on-pump CABG group, while the stroke risk was similar inter-groups (HR, 0.99; 95% CI, 0.87-1.13). CONCLUSIONS In this contemporary, nationwide, clinical practice claim registry, off-pump CABG was associated with higher long-term risks of mortality, MI, and repeat revascularization than on-pump CABG.
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Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - Ae Jung Jo
- Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, Republic of Korea
| | - Hyo Jeong Kim
- Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, Republic of Korea
| | - Songhee Cho
- Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, Republic of Korea
| | - Min Jung Ko
- Division for Healthcare Technology Assessment Research, National Evidence-based Healthcare Collaborating Agency, Seoul, Republic of Korea
| | - Sung Cheol Yun
- Department of Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Duk-Woo Park
- Division of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
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Park SJ, Kim JB. Commentary: Off-pump coronary arterial bypass grafting, a demanding instrument only for a master? J Thorac Cardiovasc Surg 2021; 162:603-604. [DOI: 10.1016/j.jtcvs.2020.03.069] [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] [Received: 03/25/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 10/24/2022]
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Lim JY, Park SJ, Kim HJ, Kim HJ, Choo SJ, Chung CH, Lee JW, Park DW, Kim JB. Comparison of dopamine versus norepinephrine in circulatory shock after cardiac surgery: A randomized controlled trial. J Card Surg 2021; 36:3711-3718. [PMID: 34310744 DOI: 10.1111/jocs.15861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/08/2021] [Revised: 05/31/2021] [Accepted: 07/02/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND AIM OF THE STUDY Although dopamine and norepinephrine are recommended as first-line agents in the treatment of shock, it is unclear which is the optimal vasoactive inotropic agent (VIA) to manage postcardiotomy circulatory shock. This single-center, randomized clinical trial aimed to investigate the efficacy and safety of dopamine versus norepinephrine in postcardiotomy circulatory shock. METHODS We randomly assigned the patients with postcardiotomy circulatory shock to receive either dopamine or norepinephrine. When shock persisted despite the dose of 20 μg/kg/min of dopamine or the dose of 0.2 μg/kg/min of norepinephrine, epinephrine or vasopressin could be added. The primary endpoint was new-onset tachyarrhythmic event during drug infusion. Secondary endpoints included requirement of additional VIAs, postoperative complications, and all-cause mortality within 30 days of drug initiation. RESULTS At the planned interim analysis of 100 patients, the boundary for the benefit of norepinephrine has been crossed, and the study was stopped early. Excluding two patients withdrawing a consent, 48 patients were assigned to dopamine and 50 patients to norepinephrine. New-onset tachyarrhythmic event occurred in 12 (25%) patients in the dopamine and one (2%) patient in the norepinephrine group (p = .009). The requirement for additional VIAs was more common in the dopamine group (p < .001). Other secondary endpoints were similar between groups. CONCLUSIONS Despite the limited study subjects with early determination, in patients with postcardiotomy circulatory shock, dopamine as a first-line vasopressor was associated with higher tachyarrhythmic events and greater need for additional VIAs compared with norepinephrine.
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Affiliation(s)
- Ju Young Lim
- Department of Thoracic and Cardiovascular Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hee Jung Kim
- Department of Thoracic and Cardiovascular Surgery, Anam Hospital, University of Korea College of Medicine, Seoul, Republic of Korea
| | - Suk Jung Choo
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Cheol Hyun Chung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jae Won Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Duk-Woo Park
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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Park SJ, Park BJ, Kim TH, Ryu C, Kim HM, Cho JH, Hong J. Videoscope-assisted transaortic myectomy in patients with hypertrophic cardiomyopathy with complex left ventricular anatomy. J Card Surg 2021; 36:3283-3287. [PMID: 34171136 DOI: 10.1111/jocs.15763] [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: 04/20/2021] [Revised: 06/01/2021] [Accepted: 06/10/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The transaortic approach is the most common method of septal myectomy. However, difficulties arise due to a limited view of the surgical field. Here, we report our experience with videoscope-assisted transaortic myectomy. METHODS We reviewed myectomy operations that were performed between July 2015 and June 2019 at Chung-Ang University Hospital, Seoul, South Korea. Patients who previously had cardiac surgery, alcohol septal ablation, or concomitant disease which required combined surgery, were excluded. Among the 21 patients included, 10 patients underwent videoscope-assisted transaortic myectomy (VA group), and 11 patients underwent myectomy in a conventional manner (CO group). The preoperative data, echocardiographic images, operative records, and postoperative outcomes of these patients were reviewed. RESULTS There were no differences in baseline characteristics between groups VA and CO. The main indications for videoscope-assisted transaortic myectomy in group VA were midventricular septal muscle resection (70%), abnormal papillary muscle resection (40%), and abnormal chordal connection resection (30%). Eight (80%) patients had multiple indications for videoscope-assisted transaortic myectomy. There was no surgical mortality in either group. Postoperative patients showed less than moderate mitral regurgitation and a New York Heart Association class either III or IV. There were no differences in hospital days (9.5 vs. 12.0 days; p = .383), nor postoperative pressure gradient (14 vs. 15 mmHg; p > .99). CONCLUSIONS Videoscope-assisted transaortic myectomy is an effective surgical technique in selective hypertrophic cardiomyopathy patients with complex intraventricular anatomy, diffuse hypertrophy, and midventricular obstruction.
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Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Byung Joon Park
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Tae Ho Kim
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Choongun Ryu
- Department of Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Hyue Mee Kim
- Department of Cardiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Jun Hwan Cho
- Department of Cardiology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - Joonhwa Hong
- Department of Thoracic and Cardiovascular Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
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Park SJ, Han HS, Shin SH, Yoo KH, Li K, Kim BJ, Seo SJ, Park KY. Adverse skin reactions due to use of face masks: a prospective survey during the COVID-19 pandemic in Korea. J Eur Acad Dermatol Venereol 2021; 35:e628-e630. [PMID: 34131961 PMCID: PMC8447351 DOI: 10.1111/jdv.17447] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S J Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - H S Han
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - S H Shin
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K Li
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - S J Seo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - K Y Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Park SJ, Park YH. Simplified technique of in-office secondary tracheoesophageal puncture with immediate voice prosthesis placement under transnasal esophagoscope guidance. Eur Ann Otorhinolaryngol Head Neck Dis 2021; 138 Suppl 2:53-54. [PMID: 34116948 DOI: 10.1016/j.anorl.2021.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/17/2021] [Accepted: 04/20/2021] [Indexed: 10/21/2022]
Affiliation(s)
- S J Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 10 63-ro, Yeongdeungpo-gu, Seoul, 07345, Korea
| | - Y H Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 10 63-ro, Yeongdeungpo-gu, Seoul, 07345, Korea.
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Rhee Y, Park SJ, Kim T, Kim N, Yang DH, Kim JB. Pre-sewn Multi-branched Aortic Graft and 3D-Printing Guidance for Crawford Extent II or III Thoracoabdominal Aortic Aneurysm Repair. Semin Thorac Cardiovasc Surg 2021; 34:816-822. [PMID: 33971296 DOI: 10.1053/j.semtcvs.2021.03.046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 11/11/2022]
Abstract
Reconstruction of the visceral and segmental arteries is a challenging part of open surgical repair of extensive thoracoabdominal aortic aneurysm (TAAA). For more efficient reconstruction of these branching vessels, a technique of using pre-hand-sewn multi-branched aortic graft (octopod technique) has been adopted with the aid of 3D-printing-guidance in latest cases. The octopod graft has been employed for the extent II or III TAAA repair, in which the commercially available two 4-branched aortic grafts were interconnected before surgery. Since January 2017, 3D-printed-aortic model has been used to efficiently replicate the projected aorta shape fitted to patient's anatomy. From May 2015 through Oct 2019, 20 patients (median age, 40years; range, 23-65; 5 females) underwent extent II or III TAAA repair using the octopod technique with (n = 9) or without (n=11) 3D-printing-guidance. Thirteen patients (65%) were diagnosed as Marfan syndrome. Eighteen patients (90%) had undergone prior aorta repair including 4 patients (20%) undergoing redo-thoracotomy. Revascularization of segmental arteries was conducted in 19 patients (95%, median, N = 2; range, 1-4). Median pump and entire procedural times were 173.5 minutes (interquartile range [IQR], 136.8-187.8) and 441 minutes (IQR, 392.8-492.3), respectively. There was no operative mortality or stroke, however, permanent paraplegia occurred in one patient (5%). During follow-up (median 35months, range 1-56 months), all of reconstructed branched vessels remained wide patent on CT. The octopod technique for open TAAA repair showed favorable early and mid-term results with high feasibility of procedural efficiency. 3D-printing guidance is expected to improve the flow of surgical procedures especially in challenging anatomy.
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Affiliation(s)
- Younju Rhee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Taehun Kim
- Department of Convergence Medicine, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Namkug Kim
- Department of Convergence Medicine, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Dong Hyun Yang
- Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea.
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Park SJ, Park JW, Ahn GR, Choi SY, Yoo KH, Li K, Kim BJ. A study of the microbiological profile of filler-induced skin necrosis. Clin Exp Dermatol 2021; 46:901-905. [PMID: 33763910 DOI: 10.1111/ced.14653] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/08/2021] [Accepted: 03/19/2021] [Indexed: 11/28/2022]
Abstract
Skin necrosis is one of the most severe complications following filler injections, and can result in permanent aesthetic defects. Although an increasing number of studies have addressed the management of dermal filler complications, no study has described the spectrum of microbial pathogens. The aim of this study was to delineate the bacterial profile and prognostic factors of filler-related skin necrosis by reviewing the clinical and microbiological features of these patients. A retrospective medical record review of patients undergoing treatment for skin necrosis induced by fillers was conducted. In total, 10 cases were identified, with injection sites being the nasolabial fold (70%; n = 7), nasal dorsum (20%; n = 2) and nasal tip (10%; n = 1). Reviewing the culture results, the true culture-positive rate was found to be 50% after cases of contamination were excluded. To avoid permanent sequelae, all physicians should be aware of possible secondary infections when treating filler-induced skin necrosis.
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Affiliation(s)
- S J Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - J W Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - G R Ahn
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - S Y Choi
- Department of Dermatology, Seoul Paik Hospital, Inje University, Seoul, South Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K Li
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
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Kang SH, Park SJ, Park JW, Kim WS, Seo SJ. Paradoxical darkening following picosecond laser and successful treatment. Clin Exp Dermatol 2021; 46:1128-1129. [PMID: 33774841 DOI: 10.1111/ced.14661] [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] [Accepted: 03/24/2021] [Indexed: 11/28/2022]
Affiliation(s)
- S H Kang
- Departments of Plastic Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - S J Park
- Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - J W Park
- Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - W S Kim
- Departments of Plastic Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - S J Seo
- Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Park SJ, Zonetti S, Parker-Jervis RS, Wu J, Wood CD, Li LH, Davies AG, Linfield EH, Sydoruk O, Cunningham JE. Terahertz magnetoplasmon resonances in coupled cavities formed in a gated two-dimensional electron gas. Opt Express 2021; 29:12958-12966. [PMID: 33985041 DOI: 10.1364/oe.414178] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
We report on both experiments and theory of low-terahertz frequency range (up to 400 GHz) magnetoplasmons in a gated two-dimensional electron gas at low (<4K) temperatures. The evolution of magnetoplasmon resonances was observed as a function of magnetic field at frequencies up to ∼400 GHz. Full-wave 3D simulations of the system predicted the spatial distribution of plasmon modes in the 2D channel, along with their frequency response, allowing us to distinguish those resonances caused by bulk and edge magnetoplasmons in the experiments. Our methodology is anticipated to be applicable to the low temperature (<4K) on-chip terahertz measurements of a wide range of other low-dimensional mesoscopic systems.
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Wang Y, Hsu AY, Walton EM, Park SJ, Syahirah R, Wang T, Zhou W, Ding C, Lemke AP, Zhang G, Tobin DM, Deng Q. A robust and flexible CRISPR/Cas9-based system for neutrophil-specific gene inactivation in zebrafish. J Cell Sci 2021; 134:237799. [PMID: 33722979 DOI: 10.1242/jcs.258574] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 03/01/2021] [Indexed: 12/17/2022] Open
Abstract
CRISPR/Cas9-based tissue-specific knockout techniques are essential for probing the functions of genes in embryonic development and disease using zebrafish. However, the lack of capacity to perform gene-specific rescue or live imaging in the tissue-specific knockout background has limited the utility of this approach. Here, we report a robust and flexible gateway system for tissue-specific gene inactivation in neutrophils. Using a transgenic fish line with neutrophil-restricted expression of Cas9 and ubiquitous expression of single guide (sg)RNAs targeting rac2, specific disruption of the rac2 gene in neutrophils is achieved. Transient expression of sgRNAs targeting rac2 or cdk2 in the neutrophil-restricted Cas9 line also results in significantly decreased cell motility. Re-expressing sgRNA-resistant rac2 or cdk2 genes restores neutrophil motility in the corresponding knockout background. Moreover, active Rac and force-bearing F-actins localize to both the cell front and the contracting tail during neutrophil interstitial migration in an oscillating fashion that is disrupted when rac2 is knocked out. Together, our work provides a potent tool that can be used to advance the utility of zebrafish in identifying and characterizing gene functions in a tissue-specific manner.
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Affiliation(s)
- Yueyang Wang
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Alan Y Hsu
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Eric M Walton
- Department of Molecular Genetics and Microbiology, and Immunology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Sung Jun Park
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA
| | - Ramizah Syahirah
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Tianqi Wang
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Wenqing Zhou
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Chang Ding
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Abby Pei Lemke
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - GuangJun Zhang
- Department of Comparative Pathobiology, Purdue University, West Lafayette, IN 47907, USA.,Purdue Institute for Inflammation, Immunology, & Infectious Disease, Purdue University, West Lafayette, IN 47907, USA.,Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA.,Purdue Institute for Integrative Neuroscience, Purdue University, West Lafayette, IN 47907, USA
| | - David M Tobin
- Department of Molecular Genetics and Microbiology, and Immunology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Qing Deng
- Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA.,Purdue Institute for Inflammation, Immunology, & Infectious Disease, Purdue University, West Lafayette, IN 47907, USA.,Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN 47907, USA
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Yoo KH, Park SJ, Han HS, Won CH, Lee YW, Kim BJ. Randomized, double-blind, active-controlled, multicentre, phase III clinical trial with two stages to assess the safety and efficacy of letibotulinum toxin a vs. onabotulinum toxin a for subjects with moderate to severe crow's feet. J Eur Acad Dermatol Venereol 2021; 35:1587-1594. [PMID: 33721365 DOI: 10.1111/jdv.17217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 02/24/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Letibotulinum toxin A (LeBA) was approved by the Ministry of Food and Drug Safety (known as the Korea Food & Drug Administration) for cosmetic indications in 2012. However, the efficacy and safety of this newly introduced LeBA have not been investigated in crow's feet lines (CFL) treatment and standardization before its universal use. OBJECTIVE The aim of this multicentre, double-blind, randomized, parallel, active-controlled Phase III clinical trial with two stages (ClinicalTrials.gov identifier: NCT03408236) was to investigate the non-inferiority of LeBA vs. the existing onabotulinum toxin A (OnBA) for the treatment of CFL. METHODS A total of 240 subjects were randomized to either the test (LeBA) or control (OnBA) group. At the baseline and at weeks 4 while maximum smiling (primary efficacy assessment), 8, 12 and 16, investigator's on-site evaluation, independent evaluator, evaluation by the subjects, subjects' satisfaction assessment and safety assessment were performed. RESULTS At week 4, the response rate of primary efficacy assessment was 69.75% and 68.33% in the test (LeBA) and control (OnBA) groups, respectively, without a significant difference. Other minor secondary evaluation results showed significant differences suggesting that LeBA offered better improvement than OnBA, but the overall results did not show significant differences between the two groups. CONCLUSION This study showed that LeBA was as effective and safe as OnBA for the treatment of CFL at the same doses.
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Affiliation(s)
- K H Yoo
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - S J Park
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - H S Han
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
| | - C H Won
- Department of Dermatology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Y W Lee
- Department of Dermatology, College of Medicine, Konkuk University Hospital, Seoul, Korea
| | - B J Kim
- Department of Dermatology, College of Medicine, Chung-Ang University Hospital, Seoul, Korea
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Park SJ, Cho SH, Seo HW, Nam JD, Suhr J. Natural cork agglomerate enabled mechanically robust rigid polyurethane foams with outstanding viscoelastic damping properties. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123437] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Park SJ, Kim JB. Reply: Pursuing the excellence, sharing the standard. J Thorac Cardiovasc Surg 2021; 164:e88-e89. [PMID: 33494919 DOI: 10.1016/j.jtcvs.2020.12.101] [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] [Received: 12/21/2020] [Revised: 12/21/2020] [Accepted: 12/21/2020] [Indexed: 10/22/2022]
Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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Kwon Y, Park SJ, Kim HJ, Kim JB, Jung SH, Choo SJ, Lee JW. OUP accepted manuscript. Interact Cardiovasc Thorac Surg 2021; 34:354-360. [PMID: 35188960 PMCID: PMC8860419 DOI: 10.1093/icvts/ivab309] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 09/14/2021] [Accepted: 10/06/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Right mini-thoracotomy approach may enhance the visualization of mitral valve (MV) visualization during redo MV surgery, thereby minimizing the risk of reoperative median sternotomy. We described the clinical outcomes of redo MV surgery by mini-thoracotomy and full-sternotomy approach. METHODS Of 730 consecutive adult patients who underwent redo MV surgery between 2002 and 2018 at our institution, we identified 380 patients (age: 56.0 [14.8] years) after excluding those who underwent concomitant aortic valve or coronary artery surgeries. RESULTS The clinical outcomes in patients who underwent mini-thoracotomy (MINI group; n = 168) and full-sternotomy (STERN group; n = 218) were described. The early and overall mortality in the MINI group was 4.3% (7/162) and 17.3% (28/162), with the rates of early major complications as follows: low cardiac output syndrome, 5.6% (9/162); early stroke, 6.8% (11/162); new-onset dialysis, 6.2% (10/162); prolonged ventilation, 15.4% (25/162); and postoperative bleeding requiring exploration, 7.4% (12/162). In the STERN group, the early mortality was 11.0% (24/218), whereas the risk of low cardiac output syndrome, early stroke, new-onset dialysis, prolonged ventilation, and postoperative bleeding was 12.4% (27/218), 14.2% (31/218), 17.0% (37/218), 33.0% (72/218), and 10.1% (22/218), respectively. The duration of intensive care unit and hospital stay was 2.0 [range 1.0, 3.0] and 8.0 [6.0, 13.0], respectively, in the MINI group and 3.0 [2.0, 7.0] and 14.0 [8.0, 29.0], respectively, in the STERN group. CONCLUSIONS Mini-thoracotomy may be a viable alternative to conventional sternotomy for redo MV surgery.
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Affiliation(s)
- Yelee Kwon
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Sung-Ho Jung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Suk Jung Choo
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jae Won Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
- Corresponding author. Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, South Korea. Tel: +82-2-3010-3584; fax: +82-2-3010-6966; e-mail: (J.W. Lee)
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Park SJ, Kim JJ, Kim BS. Validation of Remote Collection of Patient-Reported Outcomes Using Patients' Smartphones. Clin Orthop Surg 2020; 13:117-122. [PMID: 33747388 PMCID: PMC7948045 DOI: 10.4055/cios20075] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/15/2020] [Indexed: 01/21/2023] Open
Abstract
Backgroud The purpose of this study was to examine the between-mode equivalence and the relative efficiency of the 2 available modes of patient-reported outcome (PRO) data collection: a web-enabled touch screen tablet and a smartphone in a sample of patients who underwent foot and ankle orthopedic surgery. Methods A total of 136 patients who visited the clinic after foot/ankle surgery participated in the study. All patients completed the PRO questionnaire set using tablets at the hospital. After 24 hours of completing the first PRO questionnaire, the patients completed the same PRO questionnaire at home using their personal smartphones. The outcomes were statistically compared, and the patients' preferences were surveyed. Results The intraclass correlation coefficients for comparing the results of PRO measurements between the 2 modes were 0.970 for the visual analog scale, 0.952 for the Foot Function Index, 0.959 for the foot and ankle outcome scale, and 0.957 for the patient's satisfaction. Sixty-eight participants (58.6%) responded that they were able to answer the questionnaires with more honesty at home using their smartphones. Regarding the mode, 60 participants (48.1%) responded that they have no preference between the devices. Conclusions The results of this study showed the equivalence of the 2 modes of PRO data collection: web-enabled touch screen tablets and smartphones. Smartphones may be the preferred mode of PRO measurement, due to their easy accessibility, increased privacy, and the patients' increased honesty in answering questionnaires.
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Affiliation(s)
- Sung Jun Park
- Department of Orthopaedic Surgery, Inha University Hospital, Incheon, Korea
| | - Julie J Kim
- Department of Orthopaedic Surgery, Inha University Hospital, Incheon, Korea
| | - Bom Soo Kim
- Department of Orthopaedic Surgery, Inha University School of Medicine, Incheon, Korea
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Lee CH, Kwon Y, Park SJ, Lee JW, Kim JB. Comparison of del Nido and histidine-tryptophan-ketoglutarate cardioplegic solutions in minimally invasive cardiac surgery. J Thorac Cardiovasc Surg 2020; 164:e161-e171. [PMID: 33487412 DOI: 10.1016/j.jtcvs.2020.11.163] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 11/20/2020] [Accepted: 11/21/2020] [Indexed: 12/01/2022]
Abstract
OBJECTIVE We examined the safety and efficacy of del Nido cardioplegic solution compared with histidine-tryptophan-ketoglutarate cardioplegic solution in minimally invasive cardiac surgery. METHODS Patients who underwent minimally invasive cardiac surgery using del Nido or histidine-tryptophan-ketoglutarate from 2015 to 2019 were enrolled. Various clinical outcomes were compared between the groups. Postoperative laboratory findings including the levels of electrolytes, cardiac enzymes (creatine kinase-MB and troponin I), and serial blood lactate were also measured and compared. Based on 28 baseline covariates, propensity score matching was performed to reduce selection bias. RESULTS Among 766 patients, del Nido and histidine-tryptophan-ketoglutarate were used in 330 patients (43.1%) and 436 patients (56.9%), respectively. There were no significant intergroup differences in postoperative clinical outcomes and early adverse outcomes among 228 pairs of propensity score-matched patients. Immediate postoperative sodium levels were within the normal range in both groups without a significant difference (P = .50). However, peak creatine kinase-MB (median, 31.9 vs 37.7 ng/mL, P = .026) and troponin I (6.9 vs 9.1 ng/mL, P = .014) levels were significantly lower in the del Nido group. Linear regression analysis revealed a significant association between the peak cardiac enzyme levels and the cardiac ischemic time depending on the cardioplegia type, with lower cardiac isoenzymes for del Nido over histidine-tryptophan-ketoglutarate (P < .001) until the crossover point at the cardiac ischemic time over 100 minutes. CONCLUSIONS In comparison with histidine-tryptophan-ketoglutarate solution, del Nido solution seems to have acceptable safety and efficacy with good myocardial protection in minimally invasive cardiac surgery. Further studies focusing on complex surgeries requiring longer cardiac ischemic time are needed.
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Affiliation(s)
- Chee-Hoon Lee
- Department of Cardiovascular and Thoracic Surgery, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Seoul, South Korea
| | - Youngkern Kwon
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea
| | - Jae Won Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea.
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, South Korea
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Kwon YK, Park SJ, Choo SJ, Yun TJ, Lee JW, Kim JB. Surgical Outcomes of Kommerell Diverticulum. Korean J Thorac Cardiovasc Surg 2020; 53:346-352. [PMID: 33173018 PMCID: PMC7721514 DOI: 10.5090/kjtcs.20.071] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 06/09/2020] [Revised: 09/08/2020] [Accepted: 09/19/2020] [Indexed: 11/16/2022]
Abstract
Background We aimed to assess the clinical outcomes of patients who underwent surgical repair of Kommerell diverticulum (KD) with individualized surgical methods. Methods A retrospective analysis was performed of adult patients (aged ≥17 years) who underwent surgery to treat KD between June 2008 and October 2019. Results Nine patients (median age, 45 years; range, 19–67 years; 7 men) underwent surgical repair. The indications for surgical therapy were acute aortic dissection in 2 patients, the presence of compressive symptoms due to dilated KD in 4 patients, and aneurysm growth in 3 patients. Various surgical techniques were used (1) resection of the diverticulum stump and revascularization of the aberrant subclavian artery (n=3), (2) one-stage total-arch replacement including the diverticulum segment (n=3), and (3) hybrid repair (n=3). Early mortality occurred in 1 case of hybrid repair. Transient paraparesis occurred in a patient who underwent total arch repair as part of complicated acute aortic dissection. During follow-up (median duration, 30 months; range, 7–130 months), no late death or associated aortic complications were documented. All survivors were free from symptoms and had no abnormal findings on follow-up computed tomography. Conclusion With a customized surgical approach and appropriate consideration of patient-specific anatomy and associated comorbidities, KD can be repaired with favorable outcomes.
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Affiliation(s)
- Young Kern Kwon
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Suk Jung Choo
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Tae Jin Yun
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Won Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Park SJ, Park JW, Park KY, Li K, Seo SJ, Kim BJ, Yoo KH. Systemic contact dermatitis induced by Rhus allergens in Korea: exercising caution in the consumption of this nutritious food. Clin Exp Dermatol 2020; 46:324-327. [PMID: 32974941 DOI: 10.1111/ced.14458] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/11/2020] [Accepted: 09/16/2020] [Indexed: 11/29/2022]
Abstract
Systemic contact dermatitis (SCD) develops when a person who was previously sensitized to an allergen is exposed to the same allergen via the systemic route. In East Asia, the use of lacquer for polishing furniture is common and a part of the traditional culture. Contact exposure to tableware polished with Rhus lacquer may lead to sensitization. In Korea, SCD is commonly observed after systemic exposure to Rhus, a nutritious food item consumed because of the common belief of it improving the immune system. In this study, we reviewed the medical records of 21 Korean patients with SCD caused by Rhus ingestion. We found that the most significant epidemiological factor for SCD was the season of the year. Furthermore, 66.67% of the patients presented with leucocytosis and 23.81% showed increased liver enzyme levels. It is important to educate people on the risks associated with the systemic ingestion of Rhus.
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Affiliation(s)
- S J Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - J W Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K Y Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K Li
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - S J Seo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - B J Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
| | - K H Yoo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, South Korea
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Park SJ, Oh JK, Kim SO, Lee SA, Kim HJ, Lee S, Jung SH, Song JM, Choo SJ, Kang DH, Chung CH, Song JK, Lee JW, Kim DH, Kim JB. Determinants of clinical outcomes of surgery for isolated severe tricuspid regurgitation. Heart 2020; 107:403-410. [PMID: 33139325 DOI: 10.1136/heartjnl-2020-317715] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/29/2020] [Accepted: 10/03/2020] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Although the incidence of patients with isolated tricuspid regurgitation (TR) is increasing, data regarding the clinical outcomes of isolated TR surgery are limited. This study sought to investigate the prognostic implications according to procedural types, and to identify preoperative predictors of clinical outcomes after isolated TR surgery. METHODS Among consecutive 2610 patients receiving tricuspid valve (TV) procedure, we analysed 238 patients (age, 59.6 years; 143 females) who underwent stand-alone TV surgery (repair, 132; replacement, 106) for severe TR. Primary outcome was the composite of all-cause mortality and heart transplantation. Clinical outcomes between the repair and the replacement groups were compared after adjusting with the inverse probability of treatment weighting (IPTW) method. RESULTS During follow-up (median, 4.1 years), 53 patients died and 4 received heart transplantation. Multivariable analysis revealed that age (p=0.001), haemoglobin level (p=0.003), total bilirubin (p=0.040), TR jet area (p=0.005) and right atrial (RA) pressure (p=0.022) were independent predictors of the primary outcome. After IPTW adjustment, there were no significant intergroup differences in the risk of primary outcome (HR 1.01; 95% CI 0.55 to 1.87). In the subgroup analysis, tricuspid annular diameter was identified as a significant effect modifier (p=0.012) in the comparison between repair versus replacement, showing a trend favouring replacement in patients with annular diameter >44 mm. CONCLUSIONS The outcomes of stand-alone severe TR surgery were independently associated with the severity of TR and RA pressure. In selected patients with severe annular dilation >44 mm, replacement may become a feasible option.
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Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, Seoul, The Republic of Korea
| | - Jin Kyung Oh
- Cardiology, Chungnam National University Sejong Hospital, Sejong, The Republic of Korea
| | - Seon-Ok Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, Songpa-gu, The Republic of Korea
| | - Seung-Ah Lee
- Division of Cardiology, Asan Medical Center, Seoul, The Republic of Korea
| | - Ho Jin Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, Seoul, The Republic of Korea
| | - Sahmin Lee
- Division of Cardiology, Asan Medical Center, Seoul, The Republic of Korea
| | - Sung Ho Jung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, Seoul, The Republic of Korea
| | - Jong-Min Song
- Division of Cardiology, Asan Medical Center, Seoul, The Republic of Korea
| | - Suk Jung Choo
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, Seoul, The Republic of Korea
| | - Duk-Hyun Kang
- Division of Cardiology, Asan Medical Center, Seoul, The Republic of Korea
| | - Cheol Hyun Chung
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, Seoul, The Republic of Korea
| | - Jae-Kwan Song
- Division of Cardiology, Asan Medical Center, Seoul, The Republic of Korea
| | - Jae Won Lee
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, Seoul, The Republic of Korea
| | - Dae-Hee Kim
- Division of Cardiology, Asan Medical Center, Seoul, The Republic of Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, Seoul, The Republic of Korea
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Park SJ, Kim JB. Commentary: A star shines brightest in the dark: The way surgeons work in the heart team. JTCVS Tech 2020; 4:83-84. [PMID: 34317973 PMCID: PMC8306137 DOI: 10.1016/j.xjtc.2020.08.058] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 11/26/2022] Open
Affiliation(s)
- Sung Jun Park
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Joon Bum Kim
- Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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