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Choi W, Kim CH, Hwang IC, Yoon CH, Yoon YE, Chae IH, Cho GY. Three-dimensional myocardial strain for the prediction of clinical events in patients with successfully reperfused ST-segment elevation myocardial infarction. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeaa356.156] [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
Funding Acknowledgements
Type of funding sources: None.
Background/Introduction
Two-dimensional (2D) myocardial strain analysis can be used to evaluate the prognosis of patients with acute myocardial infarction and has comparable predictive power as conventional echocardiographic parameters such as left ventricular ejection fraction (LV EF). Three-dimensional (3D) myocardial strain analysis is also expected to have similar clinical usefulness and overcome several inherent limitations of 2D strain analysis. However, no large-scale studies have been reported to date.
Purpose
We aimed to clarify the prognostic significance of 3D strain analysis in patients with ST-segment elevation myocardial infarction (STEMI) who are most likely to benefit from 3D strain analysis.
Methods
Patients who underwent successful revascularization for STEMI from June 2011 to April 2017 were retrospectively recruited. In addition to conventional echocardiographic parameters, 3D global area strain (GAS), 3D global longitudinal strain (GLS), as well as 2D GLS were obtained.
To evaluate the clinical outcomes, we constructed a composite outcome consisting of all-cause death or re-hospitalisation due to acute decompensation of heart failure.
Results
From June 2011 to April 2017, 632 patients were retrospectively recruited in our hospital. Of these patients, 545 patients (86.2%) had a reliable 3D strain analysis. The clinical course of each patient was followed up for a maximum of 96 months (median 49.5 months). During follow-up periods, 55 (10.1%) among 545 patients experienced the composite outcome of all-cause death or re-hospitalisation due to acute decompensation of heart failure. Patients with adverse events were older, had more underlying diseases such as obesity, dyslipidemia, previous history of stroke, or chronic kidney disease. (all, p < 0.05) LV EF was significantly lower, while 2D GLS, 3D GLS, and 3D GAS were significantly higher in patients with poor outcomes. (all, p < 0.001) The area under the receiver operating characteristic curve (AUC) values of LV EF, 2D GLS, 3D GLS, and 3D GAS were 0.70, 0.71, 0.67, and 0.65, respectively. (all, p < 0.05) Kaplan-Meier analysis of composite outcomes based on the best cut-off values of each parameter demonstrated similar results. (Figure 1) In the Cox proportional hazard model, the hazard ratios of LV EF, 2D GLS, and 3D GLS were 3.0, 5.5, and 2.0, respectively. (all, p < 0.05) The maximum likelihood-ratio test was performed to evaluate the additional prognostic value of 2D GLS or 3D GLS over the basic prognostic model consisting of baseline clinical characteristics and LV EF, and the likelihood ratio was 15.9 for 2D GLS (p < 0.001) and 1.49 for 3D GLS (p = 0.22).
Conclusion(s)
3D strain could be reliably measured in the majority of the patients and had a significant prognostic value. However, the predictive power of the 3D strain was lower than that of the 2D strain. The clinical implications of 3D strain indices should be investigated further.
Abstract Figure.
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Affiliation(s)
- W Choi
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - CH Kim
- Sejong General Hospital, Bucheon, Korea (Republic of)
| | - IC Hwang
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - CH Yoon
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - YE Yoon
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - IH Chae
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - GY Cho
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
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Park JB, Park CS, Choi YJ, Kwak S, Moon I, Hwang IC, Park JJ, Lee SP, Park JH, Cho GY. P785 Left ventricular geometry and myocardial contractility modulate impact of statins on prognosis in patients with acute heart failure. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.444] [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: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
N/A
Background/Introduction: The benefit of statins in patients with heart failure (HF) remains controversial and the mechanism of action is largely speculative. We investigated whether survival benefit with statins differs according to left ventricular (LV) geometry and myocardial contractility in acute HF patients.
Methods
We enrolled 1792 acute HF patients receiving statins and 2296 patients not receiving statins admitted from 2009 to 2016. The LV and right ventricular (RV) global longitudinal strain (GLS) was assessed as a measure of myocardial contractility. Patients were classified into 2 groups based on ischemic etiology of HF and further divided into 4 subgroups according to the median values of LV-GLS or RV-GLS. The primary outcome was 5-year all-cause mortality. The study protocol was approved by the ethics committee at each institute and complied with the Declaration of Helsinki. The need for written informed consent was waived.
Results
During the 5-year follow-up, 1740 (40.4%) patients died and they had more unfavorable baseline characteristics. Statin therapy was significantly associated with improved survival in overall patients and in both groups with and without ischemic etiology (all p <0.001). Patients with concentric remodeling/hypertrophy and eccentric hypertrophy demonstrated survival benefit with statin therapy (P = 0.033, 0.004, and 0.008, respectively), while those with normal geometry did not (p = 0.123). In the non-ischemic HF group, survival benefit with statin therapy was confined to patients with low LV-GLS (p = 0.045) or those with low RV-GLS p = 0.003). On the contrary, in ischemic HF group, survival benefit with statin therapy was observed in all patients regardless of the values of LV-GLS or RV-GLS. Significant interactions were present between statin use and diabetes mellitus and IHD (p for interaction = 0.027 and 0.003, respectively) regarding mortality.
Conclusions
LV geometry and myocardial contractility may modulate the effects of statins in patients with acute HF. These echocardiographic measures can provide prognostic information to guide tailored statin treatment in this population. Our findings may also help to develop more well-designed prospective studies, in terms of a more homogenous study population, to confirm survival benefit with statin therapy.
Abstract P785 Figure. Multivariate Cox survival curves
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Affiliation(s)
- J B Park
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - C S Park
- Korea Advanced Institute of Science and Technology, Daejeon, Korea (Republic of)
| | - Y J Choi
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - S Kwak
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - I Moon
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - I C Hwang
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - J J Park
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
| | - S P Lee
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - J H Park
- Chungnam National University Hospital, Daejeon, Korea (Republic of)
| | - G Y Cho
- Seoul National University Bundang Hospital, Seongnam, Korea (Republic of)
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Hwang IC, Kim AJ, Ro H, Jung JY, Chang JH, Lee HH, Chung W, Park YH. Changes in Bone Mineral Density After Kidney Transplantation. Transplant Proc 2018; 50:2506-2508. [PMID: 30316387 DOI: 10.1016/j.transproceed.2018.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/22/2018] [Accepted: 04/06/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND Numerous studies have shown that osteoporosis is common in kidney transplant recipients. However, the change in bone mineral density after kidney transplantation (KT) is not fully understood. METHODS Thirty-nine kidney transplant recipients with bone densitometry at pretransplant and 24 months after KT were reviewed. RESULTS The recipients' median age (44.5 ± 10.7 years) and dialysis duration before KT (4.2 ± 3.4 years) were recorded. The T-scores of the lumbar spine and femur neck at 24 months after KT were positively associated with the respective pretransplant T-score (P < .001 in the lumbar spine and P < .001 in the femur neck). However, the T-score after KT did not show significant change (P = .680 in lumbar spine, P = .093 in femur neck). Changes in the T-scores of the lumbar spine and femur neck over 24 months (delta T-score) were negatively associated with the respective pretransplant T-scores (P = .001 in lumbar spine, P = .026 in femur neck). Changes in the T-scores of the lumbar spine and femur neck over 24 months (delta T-score) were also associated with the pretransplant T-scores after the adjustment of other variables. CONCLUSION The change of bone mineral density was related with pretransplant bone mineral density. Careful follow-up of bone densitometry for KT recipients was needed.
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Affiliation(s)
- I C Hwang
- Department of Medicine, Gachon University College of Medicine, Inchon, Republic of Korea
| | - A J Kim
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - H Ro
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea.
| | - J Y Jung
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - J H Chang
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - H H Lee
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - W Chung
- Department of Internal Medicine, Gachon University Gil Medical Center, Inchon, Republic of Korea
| | - Y H Park
- Department of Surgery, Gachon University Gil Medical Center, Inchon, Republic of Korea
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Zhao PY, Jung SO, Hwang IC, Kim BR, Shin JW, Shim MK, Kang DK, Kim JY, Kim HB, Kim IH. 1019 Effect of lysophospholipids supplementation in different energy diets on growth performance, nutrient digestibility, milk composition, litter performance, and fecal score in lactating sows. J Anim Sci 2016. [DOI: 10.2527/jam2016-1019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kim NR, Kim YJ, Hwang IC. A Carcinoid Tumor of the Esophagus Treated with Endoscopic Ablation Therapy. JNMA J Nepal Med Assoc 2016; 55:97-99. [PMID: 28029676] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
Esophageal carcinoids are exceedingly rare and only a few limited cases have been reported. Because knowledge about esophageal carcinoid is based primarily on case reports, the treatment of choice has not been settled. We report here on a localized carcinoid tumor in the esophagogastric junction. As our initial biopsy was nearly equal for the excision, we only performed coagulation ablation therapy instead of a wide excision which is traditionally recommended. The patient is free of recurrence so far during 50-month follow-up. Our report suggests that esophageal carcinoids may be not particularly associated with a poor prognosis.
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Affiliation(s)
- N R Kim
- Department of Pathology, Gachon University Gil Medical Center, Namdong-gu, Republic of Korea
| | - Y J Kim
- Division of Gastroenterology, Department of Internal Medicine, Gachon University Gil Medical Center, Namdong-gu, Republic of Korea
| | - I C Hwang
- Department of Family Medicine, Gachon University Gil Medical Center, Namdong-gu, Republic of Korea
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Datta SJ, Khumnoon C, Lee ZH, Moon WK, Docao S, Nguyen TH, Hwang IC, Moon D, Oleynikov P, Terasaki O, Yoon KB. CO2 capture from humid flue gases and humid atmosphere using a microporous coppersilicate. Science 2015; 350:302-6. [DOI: 10.1126/science.aab1680] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Ko KD, Kim KK, Suh HS, Hwang IC. Associations between the GNB3 C825T polymorphism and obesity-related metabolic risk factors in Korean obese women. J Endocrinol Invest 2014; 37:1117-20. [PMID: 25280441 DOI: 10.1007/s40618-014-0182-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 09/20/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE It is important to identify a 'metabolically unhealthy obese' subset with higher cardiovascular risk among obese individuals. We investigated the associations between the GNB3 C825T polymorphism and obesity-related metabolic risk factors among Korean obese women. METHODS This study was a sub-investigation of a double-blind randomized controlled trial that examined the additive effect of or list at on weight loss with sibutramine. A sample of 111 obese women were divided into T-carriers (CT/TT) or a homozygous CC group, according to the presence of the 825T allele at GNB3. These groups were compared to determine their associations with obesity-related metabolic risk factors, i.e., fasting plasma glucose, serum lipids, serum insulin/insulin resistance, and abdominal fat amounts. RESULTS The allele frequencies of the GNB3 polymorphism were C allele = 59.5% and T allele = 40.5%. The T allele was found to be significantly associated with greater visceral fat and higher serum lipids, and these significances remained robust after adjusting for potential covariates. CONCLUSIONS The GNB3 825T polymorphism is significantly associated with greater visceral fat and higher serum lipids in Korean obese women and it suggests that the GNB3 C825T is a determinant of obesity-related metabolic traits in this population.
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Affiliation(s)
- K D Ko
- Department of Family Medicine, Gachon University Gil Medical Center, 1198 Guwol-dong, Namdong-gu, Incheon, 405-760, Republic of Korea,
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Hwang IC, Kim KK, Ahn HY, Suh HS, Oh SW. Effect of the G-protein β3 subunit 825T allele on the change of body adiposity in obese female. Diabetes Obes Metab 2013; 15:284-6. [PMID: 23061407 DOI: 10.1111/dom.12023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 09/22/2012] [Accepted: 10/10/2012] [Indexed: 11/27/2022]
Abstract
No clinical studies on the lipolytic effect of guanine nucleotide-binding protein β3 subunit gene (GNB3) 825T polymorphism have been performed. This study was a subinvestigation of a 12-week randomized controlled trial (NCT01184560) for the additive effect of orlistat on sibutramine treatment. The analysis involved 101 obese females aged 18-49 years, genotyped at the GNB3 825 locus. To exclude any influence from potential confounders, we used an analysis of covariance model. After the intervention, fat mass proportion in total weight loss was significantly lower in subjects with a T allele than in those without a T allele (p = 0.034). GNB3 825T allele was associated with blunted fat mass reduction in obese females.
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Affiliation(s)
- I C Hwang
- Department of Family Medicine, Gachon University Gil Hospital, Incheon, South Korea
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Nguyen HM, Hwang IC, Kweon DK, Park HJ. Enhanced payload of lipid nanocarriers using supersaturated solution prepared by solvent-mediated method. J Microencapsul 2013; 30:657-66. [PMID: 23425086 DOI: 10.3109/02652048.2013.774445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
With the aim to effectively enhance the payload for nanocarriers, supersaturated deltamethrin (SSD) solution was prepared using the solvent-mediated method to produce lipid nanocarriers by a combination method of homogenization and sonication. In this study, deltamethrin was used as an active ingredient, corn oil was used as a lipid medium, soybean lecithin and Tween-80 were used as surfactants. At 25°C, the solubility of deltamethrin in SSD solution prepared by solvent-mediated method was 3.4 times and 1.5 times higher than that in saturated deltamethrin (SD) solution and that in SSD solution prepared by thermal-mediated method, respectively. Therefore, compared to the use of SD solution for the production of nanocarriers, the use of SSD solution significantly enhanced the payload, while keeping the encapsulation efficiency high. Particularly, nanocarriers produced from SSD solution prepared by solvent-mediated method had the higher payload of 2.1 times and 4.4 times compared with preparations using SSD solution prepared by thermal-mediated method and SD solution, respectively.
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Affiliation(s)
- H M Nguyen
- School of Life Sciences and Biotechnology, Korea University , Seoul , South Korea
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Nguyen HM, Hwang IC, Park JW, Park HJ. Enhanced payload and photo-protection for pesticides using nanostructured lipid carriers with corn oil as liquid lipid. J Microencapsul 2012; 29:596-604. [DOI: 10.3109/02652048.2012.668960] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- H. M. Nguyen
- School of Life Sciences and Biotechnology, Korea University,
Seoul, South Korea
| | - I. C. Hwang
- Central Research Institute, Kyung-Nong Co. Ltd.,
Kyungju, South Korea
| | - J. W. Park
- Seafood Research and Education Center, Oregon State University,
Astoria, USA
| | - H. J. Park
- School of Life Sciences and Biotechnology, Korea University,
Seoul, South Korea
- Department of Packaging Science, Clemson University,
Clemson, SC 29634-0370, USA
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Bang SH, Hwang IC, Yu YM, Park EH, Kwon HR, Park HJ. Application of the combined use of ultrasonic homogenization and electro-spraying in the formation of nano carrier systems. J Microencapsul 2011; 28:557-67. [DOI: 10.3109/02652048.2011.599434] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Affiliation(s)
- I. C. Hwang
- Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 373-1, Kusong-dong, Yusong-gu, Taejon 305-701, Korea
| | - S. I. Woo
- Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 373-1, Kusong-dong, Yusong-gu, Taejon 305-701, Korea
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