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Lee YJ, Lee HY, Ahn MB, Kim SK, Cho WK, Lee JW, Chung NG, Cho B, Suh BK. Thyroid dysfunction in children with leukemia over the first year after hematopoietic stem cell transplantation. J Pediatr Endocrinol Metab 2018; 31:1241-1247. [PMID: 30325734 DOI: 10.1515/jpem-2018-0162] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 09/03/2018] [Indexed: 01/23/2023]
Abstract
Background Thyroid function in children with leukemia during the first year after hematopoietic stem cell transplantation (HSCT) was investigated. Methods The medical records of 186 subjects [111 boys and 75 girls; lymphoid=75, myeloid=111; median age at HSCT was 10.7 (0.8-21.8) years old] were reviewed retrospectively. Results In children with leukemia, T3 decreased at 1 month (p<0.001) and recovered 9 months to the levels before HSCT. TSH decreased at 1 month (p<0.001), recovered at 3 months and increased at 12 months (p<0.001) to the levels before HSCT. The incidence of euthyroid sick syndrome (ESS, 23.2%, 15.5%, 5.9%, 5.2%, 3.9%, p for trend <0.001) decreased and subclinical hypothyroidism (SH, 0%, 3.9%, 14.8%, 22.1%, 21.3%, p for trend <0.001) increased at 1, 3, 6, 9 and 12 months after HSCT. Out of 55 patients developing ESS during 3 months after HSCT, 54 recovered to normal thyroid function within 5 months without medication. Among the total 186 subjects, 21 patients have been treated with levothyroxine. Both height and weight standard deviation scores continued to decrease over 1 year after HSCT. Conclusions In children with leukemia, one-quarter had ESS at 1 month and one-fifth had SH at 12 months and continued growth impairments were observed during 1 year after HSCT. Most of the ESS patients recovered to normal within 5 months without medication. More long-term follow-up of thyroid function and growth in children with leukemia after HSCT is crucial.
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Lee HY, Moon JE, Sun HY, Doo SW, Yang WJ, Song YS, Lee SR, Park BW, Kim JH. Association between lower urinary tract symptoms and cardiovascular risk scores in ostensibly healthy women. BJU Int 2018; 123:669-675. [PMID: 30281886 DOI: 10.1111/bju.14577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To investigate the association between lower urinary tract symptoms (LUTS) and cardiovascular disease (CVD) risk in women, as severe LUTS are known to be associated with CVD risk in men but few studies have focused on this issue in women. SUBJECTS AND METHODS A total of 1014 ostensibly healthy women, who participated in a voluntary health check in a health promotion centre from November 2013 to October 2015, were enrolled. LUTS were assessed using the International Prostate Symptom Score (IPSS) and Overactive Bladder Symptom Score (OABSS). CVD risk scores were calculated using the Framingham risk score and the American College of Cardiology/American Heart Association Atherosclerotic Cardiovascular Disease (ASCVD) score. Correlation, partial correlation, and multiple logistic regression analyses were conducted. RESULTS The mean age and body mass index (BMI) of the women were 51 years and 22.6 kg/m2 , respectively. The ASCVD score showed significant positive correlations with IPSS items Question 2 (Q2), Q3, Q5, and Q7 (all P < 0.05), total IPSS (P = 0.001), IPSS storage (P = 0.006) and IPSS voiding symptoms scores (P = 0.001) based on partial correlation analysis after adjustment for BMI. For the OABSS, the ASCVD score showed significant positive correlations with OABSS items Q2, Q3, and Q4 (P < 0.001, P = 0.017, and P < 0.001, respectively) and total OABSS (P < 0.001). Multiple logistic regression analysis showed that the moderate-severe risk groups of the OABSS and IPSS were associated with the ASCVD risk score in adjusted models (P < 0.001) compared to the none-mild OABSS and mild IPSS groups. After adjustment for age and BMI, IPSS storage score was significantly related with the ASCVD risk score (B = 0.855, P = 0.016) CONCLUSIONS: LUTS, especially storage symptoms, might be risk factors for predicting future CVD risk in women. Further prospective or cohort studies are needed to validate this possibility.
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Lee HY. 4111Clinical Implications of microRNA score in discriminating vasospatic angina from atherothrombotic angina or non-coronary chest pain. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.4111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hong SY, Hu XG, Lee HY, Won JH, Kim JW, Shen XY, Wang HJ, Kim BW. Longterm Analysis of Biliary Complications After Duct-to-Duct Biliary Reconstruction in Living Donor Liver Transplantations. Liver Transpl 2018; 24:1050-1061. [PMID: 29633539 DOI: 10.1002/lt.25074] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 04/22/2018] [Accepted: 05/20/2018] [Indexed: 02/07/2023]
Abstract
Biliary complication (BC) is still regarded as the Achilles' heel of a living donor liver transplantation (LDLT). This study aims to evaluate the longterm outcomes of the duct-to-duct (DD) biliary reconstruction using 7-0 suture and to identify the risk factors of BCs after LDLTs. Data of 140 LDLTs between 2006 and 2015 were analyzed. All biliary reconstructions were performed as DD anastomoses using 7-0 suture: 102 for the right lobe, 20 for the left lobe, and 18 for right posterior sector grafts. BC was defined as a bile leakage (BL) or a biliary stricture (BS), and the median follow-up time after LDLT was 65 months. A total of 19 recipients (13.5%) developed BCs (8 BLs and 16 BSs) after LDLT. The survival rates between recipients with and without BCs were 83% and 86.7%, respectively (P = 0.88). In univariate analyses, the risk factors for BC were small diameter of the graft's bile duct, long warm ischemic time, small graft-to-recipient weight ratio, and no use of external biliary stent (EBS). The graft's bile duct diameter ≤ 3 mm and no use of EBS were determined as independent risk factors (hazard ratios of 9.74 and 7.68, respectively) in multivariate analyses. The 116 recipients with EBS had no BL, 11 had BSs (9%), while 24 without EBS had 8 BLs (33%) and 5 BSs (21%). After a propensity score match between the recipients with and without EBS, the EBS group (24) developed only 1 BS (4%). In conclusion, DD anastomosis using 7-0 suture combined with EBS could provide favorable longterm outcomes after LDLT, which should thus be considered the surgical technique of choice for LDLTs.
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Kim BO, Seo JK, Kim GS, Lee HY. P3515Systolic blood pressure difference between arms and chronic kidney disease in the community based 10-year cohort study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kim GS, Kim BO, Seo JK, Lee HY, Jung IH, Byun YS. P1280Non-alcoholic fatty liver disease and hypertension in the community based cohort study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cho HJ, Choe WS, Lee HY, Lee SE, Oh BH. P6536Comparison of characteristics and 3-year outcomes in patients with acute heart failure with preserved, mid-range, and reduced ejection fraction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Lee SE, Lee HY. P278Coronary artery bypass graft versus percutaneous coronary intervention in patients presented with acute heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cho JY, Kim KH, Lee SE, Lee HY, Choi JO, Jeon ES, Kim JJ, Hwang KK, Chae SC, Baek SH, Kang SM, Choi DJ, Yoo BS, Cho MC, Oh BH. P6542Post-discharge worsening renal function predicts long-term adverse clinical outcomes in patients with acute heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Oh J, Choi JO, Cho HJ, Lee HY, Jung SH, Kim JJ, Jeon ES, Kang SM. P2809The clinical implication of donor-recipient mismatch in heart transplant recipients; data from the Korean organ transplantation registry (KOTRY). Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Chen VL, Yeh ML, Le AK, Jun M, Saeed WK, Yang JD, Huang CF, Lee HY, Tsai PC, Lee MH, Giama N, Kim NG, Nguyen PP, Dang H, Ali HA, Zhang N, Huang JF, Dai CY, Chuang WL, Roberts LR, Jun DW, Lim YS, Yu ML, Nguyen MH. Anti-viral therapy is associated with improved survival but is underutilised in patients with hepatitis B virus-related hepatocellular carcinoma: real-world east and west experience. Aliment Pharmacol Ther 2018; 48:44-54. [PMID: 29797518 DOI: 10.1111/apt.14801] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/02/2018] [Accepted: 04/23/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Hepatitis B virus (HBV) is the leading cause of hepatocellular carcinoma (HCC) worldwide. It remains incompletely understood in the real world how anti-viral therapy affects survival after HCC diagnosis. METHODS This was an international multicentre cohort study of 2518 HBV-related HCC cases diagnosed between 2000 and 2015. Cox proportional hazards models were utilised to estimate hazard ratios (HR) with 95% (CI) for anti-viral therapy and cirrhosis on patients' risk of death. RESULTS Approximately, 48% of patients received anti-viral therapy at any time, but only 17% were on therapy at HCC diagnosis (38% at US centres, 11% at Asian centres). Anti-viral therapy would have been indicated for >60% of the patients not on anti-viral therapy based on American criteria. Patients with cirrhosis had lower 5-year survival (34% vs 46%; P < 0.001) while patients receiving anti-viral therapy had increased 5-year survival compared to untreated patients (42% vs 25% with cirrhosis and 58% vs 36% without cirrhosis; P < 0.001 for both). Similar findings were seen for other patient subgroups by cancer stages and cancer treatment types. Anti-viral therapy was associated with a decrease in risk of death, whether started before or after HCC diagnosis (adjusted HR 0.62 and 0.79, respectively; P < 0.001). CONCLUSIONS Anti-viral therapy improved overall survival in patients with HBV-related HCC across cancer stages and treatment types but was underutilised at both US and Asia centres. Expanded use of anti-viral therapy in HBV-related HCC and better linkage-to-care for HBV patients are needed.
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Kim HY, Nam JY, Lee JH, Lee HA, Chang Y, Lee HY, Cho H, Lee DH, Cho YY, Cho EJ, Yu SJ, Lee JM, Kim YJ, Yoon JH. Intensity of surveillance for hepatocellular carcinoma determines survival in patients at risk in a hepatitis B-endemic area. Aliment Pharmacol Ther 2018; 47:1490-1501. [PMID: 29611209 DOI: 10.1111/apt.14623] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/01/2018] [Accepted: 03/01/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Data are insufficient regarding the survival benefit of surveillance for hepatocellular carcinoma (HCC). AIM To investigate the effectiveness of HCC surveillance in a hepatitis B-endemic population. METHODS This retrospective cohort study included 1402 consecutive patients who were newly diagnosed with HCC between 2005 and 2012 at a single tertiary hospital in Korea. The primary endpoint was overall survival. Lead-time and length-time biases were adjusted (sojourn time = 140 days) and sensitivity analyses were performed. RESULTS The most common aetiology was hepatitis B (80.4%). Cirrhosis was present in 78.2%. HCC was diagnosed during regular surveillance (defined as mean interval of ultrasonography <8 months, n = 834), irregular surveillance (n = 104) or nonsurveillance (n = 464). Patients in the regular surveillance group were diagnosed at earlier stages ([very] early stage, 64.4%) than the irregular surveillance (40.4%) or nonsurveillance (26.9%) groups and had more chance for curative treatments (52.4%) than the irregular surveillance (39.4%) or nonsurveillance (23.3%) groups (all P < 0.001). Mortality risk was significantly lower in the regular surveillance group (adjusted hazard ratio [aHR], 0.69; 95% [CI], 0.57-0.83) but not in the irregular surveillance group (aHR, 0.94; 95% CI, 0.69-1.28) compared with the nonsurveillance group after adjusting for confounding factors and lead-time. When the subjects were restricted to cirrhotic patients or Child-Pugh class A/B patients, similar results were obtained for mortality risk reduction between groups. CONCLUSIONS HCC surveillance was associated with longer survival owing to earlier diagnosis and curative treatment. Survival advantage was significant with regular surveillance but not with irregular surveillance.
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Lee T, Park JY, Lee HY, Lim HJ, Park JS, Cho YJ, Kim TJ, Lee KW, Lee JH, Lee CT, Yoon HI. Bronchial angles are associated with nodular bronchiectatic non-tuberculous mycobacteria lung disease. Int J Tuberc Lung Dis 2018; 21:1169-1175. [PMID: 28911363 DOI: 10.5588/ijtld.16.0865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The nodular bronchiectatic (NB) form of non-tuberculous mycobacteria (NTM) lung disease usually involves the right middle lobe (RML) and the left upper lobe lingular segment. However, the reason underlying this preference is not known. METHODS Fifty patients with NB NTM lung disease who had both positive NTM culture(s) and NB lesions in the RML or lingular segment on computed tomography (CT) of the chest, and 100 healthy subjects matched for sex, age, height and body weight with normal chest CT, were randomly selected. Using reconstructed curved multiplanar reformation (MPR) images, the lengths, diameters and angles of the RML and lingular bronchi were measured. RESULTS Of the 150 individuals, 64% were female; the mean age was 55 years. The angles of the bronchi were significantly more acute in patients than in healthy subjects, both in the RML (patients, mean 46.75° ± standard deviation 8.87° vs. healthy subjects, mean 51.73° ± 7.76°; P = 0.001) and in the lingular segments (patients, mean 26.94° ± 8.16° vs. healthy subjects, mean 34.65° ± 9.75°; P < 0.001). In addition, the angles of the bronchi in the involved segments were more acute than those in the non-involved segments, both in the RML and the lingular segments. There were no differences in the lengths and bronchi diameters between groups. CONCLUSIONS An acute angle (obtuse slope) of RML/lingular bronchi could be an anatomical risk factor for NB NTM lung disease.
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Park S, Yoon JK, Chung NS, Kim SH, Hwang J, Lee HY, Kwack KS. Correlations between intravoxel incoherent motion diffusion-weighted MR imaging parameters and 18F-FDG PET/CT metabolic parameters in patients with vertebral bone metastases: initial experience. Br J Radiol 2018; 91:20170889. [PMID: 29509489 DOI: 10.1259/bjr.20170889] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVE To investigate the relationship between intravoxel incoherent motion (IVIM) diffusion-weighted MRI (DW MRI) parameters and 18F-fluodeoxyglucose (FDG) (PET/CT) metabolic parameters in patients with vertebral bone metastases. METHODS 19 patients with vertebral bone metastases were retrospectively included in this institutional review board-approved study. All patients underwent IVIM DW-MRI and 18F-FDG PET/CT before treatment. The IVIM parameters [molecular diffusion coefficient (D), perfusion fraction (f), and perfusion-related D (D*)] and apparent diffusion coefficient were acquired using 11 b-values (0, 10, 15, 20, 25, 50, 80, 120, 200, 300, and 800 s mm-2). Maximum and mean standardized uptake values (SUVmax and SUVmean, respectively), metabolic tumor volume, and total lesion glycolysis derived from 18F-FDG PET/CT were calculated using thresholds of 3.0 SUV. The associations among parameters were evaluated by Spearman's correlation analysis. RESULTS A total of 19 patients and 41 regions of interest were included in this study. The IVIM parameter f was positively correlated with the metabolic parameters SUVmean and SUVmax [ρ = 0.499 (p < 0.01) and ρ = 0.413 (p < 0.01), respectively]. There was a weak positive correlation between D* and SUVmean (ρ = 0.321, p = 0.041). CONCLUSION IVIM perfusion-related parameters, especially f, were correlated with 18F-FDG PET/CT metabolic parameters in patients with vertebral bone metastases. IVIM DW-MRI, used to evaluate metabolic activity, appears to have diagnostic potential for bone metastasis and may also have utility in monitoring the post-treatment response. Advances in knowledge: The use of IVIM for vertebral bone metastasis is demonstrated. f may be more suitable to reflect the metabolic activity and may facilitate another diagnostic potential for monitoring the posttreatment response.
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Yoon YJ, Suh MJ, Lee HY, Lee HJ, Choi EH, Moon IS, Song K. Anti-tumor effects of cold atmospheric pressure plasma on vestibular schwannoma demonstrate its feasibility as an intra-operative adjuvant treatment. Free Radic Biol Med 2018; 115:43-56. [PMID: 29138018 DOI: 10.1016/j.freeradbiomed.2017.11.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 11/07/2017] [Accepted: 11/10/2017] [Indexed: 12/12/2022]
Abstract
Vestibular schwannoma (VS), although a benign intracranial tumor, causes morbidities by brainstem compression. Since chemotherapy is not very effective in most Nf2-negative schwannomas, surgical removal or radiation therapy is required. However, depending on the size and site of the tumor, these approaches may cause loss of auditory or vestibular functions, and severely decrease the post-surgical wellbeing. Here, we examined the feasibility of cold atmospheric pressure plasma (CAP) as an intra-operative adjuvant treatment for VS after surgery. Cell death was efficiently induced in both human HEI-193 and mouse SC4 VS cell lines upon exposure to CAP for seven minutes. Interestingly, both apoptosis and necroptosis were simultaneously induced by CAP treatment, and cell death was not completely inhibited by pan-caspase and receptor-interacting serine/threonine-protein kinase 1 (RIK1) inhibitors. Upon CAP exposure, cell death phenotype was similarly observed in patient-derived primary VS cells and tumor mass. In addition, CAP exposure after the surgical removal of primary tumor efficiently inhibited tumor recurrence in SC4-grafted mouse models. Collectively, these results strongly suggest that CAP should be developed as an efficient adjuvant treatment for VS after surgery to eliminate the possible remnant tumor cells, and to minimize the surgical area in the brain for post-surgical wellbeing.
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Park JH, Whang S, Lee HY, Lee CM, Kang DR. Measurement and modeling of indoor radon concentrations in residential buildings. ENVIRONMENTAL HEALTH AND TOXICOLOGY 2018; 33:e2018003. [PMID: 29332372 PMCID: PMC5903036 DOI: 10.5620/eht.e2018003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/04/2018] [Indexed: 06/07/2023]
Abstract
Radon, the primary constituent of natural radiation, is the second leading environmental cause of lung cancer after smoking. To confirm a relationship between indoor radon exposure and lung cancer, estimating cumulative levels of exposure to indoor radon for an individual or population is necessary. This study sought to develop a model for estimate indoor radon concentrations in Korea. Especially, our model and method may have wider application to other residences, not to specific site, and can be used in situations where actual measurements for input variables are lacking. In order to develop a model, indoor radon concentrations were measured at 196 ground floor residences using passive alpha-track detectors between January and April 2016. The arithmetic mean (AM) and geometric mean (GM) means of indoor radon concentrations were 117.86±72.03 and 95.13±2.02 Bq/m3, respectively. Questionnaires were administered to assess the characteristics of each residence, the environment around the measuring equipment, and lifestyles of the residents. Also, national data on indoor radon concentrations at 7643 detached houses for 2011-2014 were reviewed to determine radon concentrations in the soil, and meteorological data on temperature and wind speed were utilized to approximate ventilation rates. The estimated ventilation rates and radon exhalation rates from the soil varied from 0.18 to 0.98/hr (AM, 0.59±0.17/hr) and 326.33 to 1392.77 Bq/m2/hr (AM, 777.45±257.39; GM, 735.67±1.40 Bq/m2/hr), respectively. With these results, the developed model was applied to estimate indoor radon concentrations for 157 residences (80% of all 196 residences), which were randomly sampled. The results were in better agreement for Gyeonggi and Seoul than for other regions of Korea. Overall, the actual and estimated radon concentrations were in better agreement, except for a few low-concentration residences.
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Lee JH, Lee HY, Jung CG, Ban GY, Shin YS, Ye YM, Nahm DH, Park HS. Therapeutic Effect of Omalizumab in Severe Asthma: A Real-World Study in Korea. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2018; 10:121-130. [PMID: 29411552 PMCID: PMC5809760 DOI: 10.4168/aair.2018.10.2.121] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 10/30/2017] [Accepted: 11/14/2017] [Indexed: 12/11/2022]
Abstract
Purpose Omalizumab, an anti-immunoglobulin E (IgE) monoclonal antibody, has proved to be effective for the treatment of severe asthma. However, there is no direct evidence of effectiveness of omalizumab in Korean patients with severe asthma. We sought to evaluate the real-world effectiveness of omalizumab in Korean adult patients suffering from severe asthma and to identify predictors of favorable response. Methods A retrospective analysis of electrical medical records was performed on severe allergic asthmatic patients with omalizumab treatment group (OT group) for more than 6 months between March 2008 and February 2016. Propensity score matching was applied to define the standardized treatment control group (STC group) treated without omalizumab. Asthma-related outcomes were compared between the 2 groups, and analyzed before and after omalizumab use in the OT group. Responders to treatment were defined as patients showing >50% reduction in asthma exacerbations and/or systemic steroid requirement during the outcome period. Results One hundred twenty-four patients with severe asthma (62 in the OT group; 62 in the STC group) were enrolled in the study. Proportion of patients having the reduction of asthma exacerbation (53.2% vs 35.5%, P=0.015) and the rate of responders (67.7% vs 41.9%, P=0.007) were significantly higher in the OT group than in the STC group. Significant reductions were noted in asthma exacerbation (P=0.006), hospitalization (P=0.009), hospitalization days (P=0.006), systemic corticosteroid requirements (P=0.027), and sputum eosinophil count (P=0.031) in OT group compared with STC group. There were no significant differences in changes of forced expiratory volume in the 1 second (FEV1) levels between the 2 groups. No predictors of responders were found for omalizumab treatment. Conclusions Omalizumab can reduce exacerbations/hospitalization/systemic steroid burst in Korean adult patients with severe asthma.
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Yang HJ, Kim MJ, Kang HJ, Lee HY, Park YM, Lee YH, Kang YG, Hwa GP, Kang YS, Jung YM, Lee NK, Park KH. Immunomodulating Properties of Polygonum multiflorum Extracts on Cyclophosphamide-induced Immunosuppression Model. Indian J Pharm Sci 2018. [DOI: 10.4172/pharmaceutical-sciences.1000416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Ko HF, Lee HY, Ho HF. A 2-hour Accelerated Chest Pain Protocol to Assess Patients with Chest Pain Symptoms in an Accident and Emergency Department in Hong Kong. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791302000501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background The present study is a follow up analysis of ASPECT study. We aimed to prospectively validate a 2-hour accelerated chest pain protocol (ACPP) to assess patients presenting to emergency department with chest pain symptoms suggestive of acute coronary syndrome. Methods This observational study was carried out between June 2009 and July 2010. Patients were included if they were older than 18 years old and presented with at least 5 minutes duration of chest pain. The ACPP included modified Thrombolysis in Myocardial Infarction score, electrocardiograph and point-of-care troponin I at presentation and 2-hour after. Primary endpoint was major adverse cardiac event (MACE) at 45-day of initial hospital attendance. Results A total of 384 Chinese patients were recruited and completed 45-day follow up. Forty-five (11.7%) had 45-d MACE. The ACPP identified 124 (32.3%) low risk patients who could be discharged early. No MACE occurred within 45 days among these patients, giving a sensitivity of 100% (95% CI 90-100), a negative predictive value of 100% (96-100), and a specificity of 36.6% (31.5-42). Conclusions The ACPP is able to identify very low risk chest pain patients who might be suitable for early discharge without increasing risk of developing MACE. The observation period can be shortened to 2-hour of ED presentation. The variables are objective and easily available. This 2-hour Hong Kong Chest Pain Rule is applicable to Chinese population and has the potential to change the current practice in Emergency Departments in Hong Kong and China.
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Lee BK, Lee HY, Ryu HH, Jeung KW. Continuous Renal Replacement Therapy in a Patient with Cardiac Arrest after Glyphosate-Surfactant Herbicide Poisoning. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791201900310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Intractable hypotension is a major cause of death after glyphosate-surfactant herbicide poisoning. However, there is no specific treatment besides conservative care. Herein, we report a patient poisoned by glyphosate-surfactant herbicide experiencing cardiac arrest but was successfully resuscitated and treated with continuous venovenous haemodiafiltration (CVVHDF). The 60-year-old patient was brought to our emergency department after ingesting glyphosate-surfactant herbicide. He developed pulmonary oedema, severe metabolic acidosis (pH 6.960), and hyperkalaemia (serum potassium 8.8 mmol/L). Although he experienced cardiac arrest for about 12 minutes, the use of CVVHDF improved the metabolic acidosis and hyperkalaemia, and finally stabilised his vital signs. He regained an alert mental state after therapeutic hypothermia. CVVHDF, which is a better tolerated renal replacement therapy than haemodialysis in haemodynamically unstable patients, should be considered in glyphosate-surfactant poisoned patients of intractable hypotension with severe metabolic acidosis or hyperkalaemia.
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Park S, Kwack KS, Lee YJ, Gho SM, Lee HY. Initial experience with synthetic MRI of the knee at 3T: comparison with conventional T 1 weighted imaging and T 2 mapping. Br J Radiol 2017; 90:20170350. [PMID: 28934866 DOI: 10.1259/bjr.20170350] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE To assess the feasibility and accuracy of synthetic MRI compared to conventional T1 weighted and multi-echo spin-echo (MESE) sequences for obtaining T2 values in the knee joint at 3 Tesla. METHODS This retrospective study included 19 patients with normal findings in the knee joint who underwent both synthetic MRI and MESE pulse sequences for T2 quantification. T2 values of the two sequences at the articular cartilage, bone marrow and muscle were measured. Relative signal intensity (SI) of each structure and relative contrast among structures of the knee were measured quantitatively by T1 weighted sequences. RESULTS The mean T2 values for cartilage and muscle were not significantly different between MESE pulse sequences and synthetic MRI. For the bone marrow, the mean T2 value obtained by MESE sequences (124.3 ± 3.6 ms) was significantly higher than that obtained by synthetic acquisition (73.1 ± 5.3 ms). There were no significant differences in the relative SI of each structure between the methods. The relative contrast of bone marrow to muscle was significantly higher with conventional T1 weighted images, while that for bone marrow to cartilage was similar for both sequences. CONCLUSION Synthetic MRI is able to simultaneously acquire conventional images and quantitative maps, and has the potential to reduce the overall examination time. It provides comparable image quality to conventional MRI for the knee joint, with the exception of the bone marrow. With further optimization, it will be possible to take advantage of the image quality of musculoskeletal tissue with synthetic imaging. Advances in knowledge: Synthetic MRI produces images of good contrast and is also a time-saving technique. Thus, it may be useful for assessing osteoarthritis in the knee joint in the early stages.
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Walsh S, Lew T, Lee HY. Psychological sequelae of toxic epidermal necrolysis: further insights. Br J Dermatol 2017; 175:241. [PMID: 27535595 DOI: 10.1111/bjd.14831] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kim YM, Lee HY, Lee HJ, Kim JB, Kim S, Joo JY, Kim GC. Retention Improvement in Fluoride Application with Cold Atmospheric Plasma. J Dent Res 2017; 97:179-183. [PMID: 28945493 DOI: 10.1177/0022034517733958] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study aimed to apply fluoride formulations to enamel with cold atmospheric plasma (CAP) and analyze the fluoride uptake, retention, and acid resistance quantitatively. Human enamel specimens were divided randomly into 2 groups: group APF1, 1.23% acidulated phosphate fluoride (APF) gel; group APF2, 1.23% APF gel with CAP. Fluoride and CAP were applied to the samples 4 times at 1-wk intervals. The specimens were also stored in artificial saliva for 4 wk to evaluate the retention of fluoride. The fluoride content on the fluoride-treated enamel was measured by an electron probe microanalyzer. To detect the resistance to demineralization, the calcium-to-phosphate ratio of the enamel samples was measured after the application of APF gel with or without CAP, followed by soaking in the demineralization solution. In groups APF1 and APF2, the amount of fluoride detected increased depending on the application frequency, and more fluoride was detected in group APF2 than in group APF1. In the experiment examining the maintenance effect, fluoride was not detected in group APF1, whereas fluoride was detected in group APF2 up to the fourth week. As for the resistance to demineralization, the calcium-to-phosphate ratio of the enamel treated with APF and CAP was higher than that treated with APF alone, and it increased with the frequency of treatment. This study suggests that the combination treatment of CAP and fluoride improves retention of fluoride on the enamel and resistance to demineralization when compared with treatment with fluoride alone.
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Kim YS, Lee HY, Lee MH, Simms T, Park BH. Mental health literacy in korean older adults: A cross-sectional survey. J Psychiatr Ment Health Nurs 2017; 24:523-533. [PMID: 28474412 DOI: 10.1111/jpm.12395] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/28/2017] [Indexed: 11/28/2022]
Abstract
UNLABELLED WHAT IS KNOWN ON THE SUBJECT?: Mental health literacy is a fairly new concept, first introduced in 1997. It refers to what people know and believe about mental health disorders. People's knowledge and beliefs help them to recognize, manage and prevent mental disorders. Generally, older adults have lower health literacy compared to young and middle-aged adults. WHAT THIS STUDY ADDS TO EXISTING KNOWLEDGE?: This is the first study on the mental health literacy of Korean older adults. This study looks beyond peoples' ability to recognize mental health disorders and their opinions about them. It identifies factors that are associated with mental health literacy (level of education and social support, the number of people in one's social circles and how individuals rate their health). WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Older adults might get more out of mental health literacy programmes in group or social settings. Programmes that use older adult peer educators/supporters, such as the "older people's champions" of the Healthy Passport programme in England, might make the programmes more effective. Mental health campaigns, such as Australia's beyondblue, might increase mental health literacy of older adults. ABSTRACT Introduction Korea is experiencing rapid population ageing, spurring an increased need for mental health services for the elderly. Approximately one-third of Korean older adults experience depressive symptoms, and Korea has the highest elder suicide rate among 34 developed nations. Mental health literacy is an important component of promoting mental health, yet studies on the concept have been conducted in few countries. Aim This study examines the level of mental health literacy among Korean older adults and identifies factors associated with their mental health literacy. Method A cross-sectional survey was conducted with 596 community-dwelling Korean adults aged 65 and older. Andersen's Behavioral Model of Health Services Use framed the study. Results Overall, participants displayed low levels of mental health literacy. They had difficulty recognizing their mental health issues and had limited knowledge about self-help strategies. Mental health literacy was positively associated with education, social support, social network and health status. Discussion and Implications This study highlights a need for efforts to increase mental health literacy among Korean older adults. Strategies that have the potential to empower this population to proactively attend to their mental health include community-based education and national mental health campaigns.
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Seon CR, Hong JH, Song I, Jang J, Lee HY, An YH, Kim BS, Jeon TM, Park JS, Choe W, Lee HG, Pak S, Cheon MS, Choi JH, Kim HS, Biel W, Bernascolle P, Barnsley R. VUV spectroscopy in impurity injection experiments at KSTAR using prototype ITER VUV spectrometer. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:083511. [PMID: 28863699 DOI: 10.1063/1.4998970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ITER vacuum ultra-violet (VUV) core survey spectrometer has been designed as a 5-channel spectral system so that the high spectral resolving power of 200-500 could be achieved in the wavelength range of 2.4-160 nm. To verify the design of the ITER VUV core survey spectrometer, a two-channel prototype spectrometer was developed. As a subsequent step of the prototype test, the prototype VUV spectrometer has been operated at KSTAR since the 2012 experimental campaign. From impurity injection experiments in the years 2015 and 2016, strong emission lines, such as Kr xxv 15.8 nm, Kr xxvi 17.9 nm, Ne vii 46.5 nm, Ne vi 40.2 nm, and an array of largely unresolved tungsten lines (14-32 nm) could be measured successfully, showing the typical photon number of 1013-1015 photons/cm2 s.
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