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Saygin D, DiRenzo D, Raaphorst J, de Groot I, Bingham CO, Lundberg IE, Regardt M, Sarver C, de Visser M, Maxwell LJ, Beaton D, Kim JY, Needham M, Alexanderson H, Christopher-Stine L, Mecoli CA, Park JK. Responsiveness and meaningful thresholds of PROMIS pain interference, fatigue, and physical function forms in adults with idiopathic inflammatory myopathies: Report from the OMERACT Myositis Working Group. Semin Arthritis Rheum 2024; 64:152339. [PMID: 38141522 DOI: 10.1016/j.semarthrit.2023.152339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/18/2023] [Accepted: 11/28/2023] [Indexed: 12/25/2023]
Abstract
BACKGROUND A series of qualitative studies conducted by the OMERACT Myositis Working Group identified pain interference, fatigue, and physical function as highly important life impact domains for adults with idiopathic inflammatory myositis (IIM). In this study, our goal was to assess the responsiveness and minimal important difference of PROMIS pain interference (6a), fatigue (7a), and physical function (8b). METHODS Adults with IIM from USA, Netherlands, Korea, Sweden, and Australia with two "clinical" visits were enrolled in this prospective study. Anchor questions on a Likert scale were collected at baseline, and manual muscle testing (MMT), physician and patient reported global disease activity, and PROMIS instruments were collected at both visits. Responsiveness was assessed with i) ANOVA, ii) paired t-test, effect size and standardized response mean, and iii) Pearson correlation. Minimal important difference (MID), minimal important change (MIC) and minimal detectable change (MDC) values were calculated. RESULTS 114 patients with IIM (median age 60, 60 % female) completed both visits. Changes in PROMIS instruments were significantly different among anchor categories. Patients who reported improvement had a significant improvement in their PROMIS scores with at least medium effect size, while patients who reported worsening and stability did not show a significant change with weak effect size. PROMIS instruments had weak to moderate correlations with MMT, patient and physician global disease activity. MID was approximately 2-3 points for Pain Interference and 3-4 points for Fatigue and Physical Function forms based on the method used. MIC was approximately 4-5 for improvement of all the instruments, while MDC was 1.7-2 points for Pain Interference and Physical Function and 3.2-3.9 for Fatigue. CONCLUSION This study provides evidence towards the responsiveness of the PROMIS instruments in a large international prospective cohort of adults with IIM supporting their use as PROMs in adult myositis.
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Affiliation(s)
- D Saygin
- Division of Rheumatology, Department of Medicine, University of Pittsburgh, Pittsburgh, USA
| | - D DiRenzo
- Division of Rheumatology, Department of Medicine, University of Pennsylvania, Philadelphia, USA
| | - J Raaphorst
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | | | - C O Bingham
- Division of Rheumatology, Department of Medicine, Johns Hopkins University, Baltimore, USA
| | - I E Lundberg
- Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, Karolinska University, Stockholm, Sweden
| | - M Regardt
- Department of Neurobiology, Care Sciences and Society, Division of Occupational Therapy, Karolinska Institutet and Medical Unit Occupational Therapy and Physical Therapy, Karolinska University Hospital, Stockholm, Sweden
| | | | - M de Visser
- Department of Neurology, Amsterdam UMC, University of Amsterdam, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - L J Maxwell
- Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - D Beaton
- Institute for Work & Health and Institute for Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - J Y Kim
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Korea
| | - M Needham
- Department of Neurology, Fiona Stanley Hospital, IIID Murdoch University and University of Notre Dame, Perth, Australia
| | - H Alexanderson
- Medical Unit Occupational Therapy and Physical Therapy, Karolinska University Hospital and Division of Rheumatology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - L Christopher-Stine
- Division of Rheumatology, Department of Medicine, Johns Hopkins University, Baltimore, USA
| | - C A Mecoli
- Division of Rheumatology, Department of Medicine, Johns Hopkins University, Baltimore, USA
| | - J K Park
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Korea.
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Park JK, Jeong HS. Clinical and Radiologic Outcomes of Open Reduction and Internal Fixation without Capsular Incision for Inferior Glenoid Fossa Fractures. Clin Orthop Surg 2023; 15:175-181. [PMID: 37008980 PMCID: PMC10060784 DOI: 10.4055/cios22183] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 10/11/2022] [Accepted: 10/14/2022] [Indexed: 04/04/2023] Open
Abstract
Background Scapular surgery is usually undertaken via the posterior approach described by Judet. This approach allows access to the entire posterior scapular body; however, it results in severe soft-tissue injury and requires an incision in the deltoid muscle. To date, no clinical study has been reported on open reduction and internal fixation without capsular incision for displaced inferior glenoid fractures (Ideberg type II). The purpose of this study was to introduce an easy and less invasive approach to the inferior glenoid fossa and evaluate its clinical outcomes. Methods Ten patients with displaced inferior glenoid fractures underwent open reduction and internal fixation without capsular incision between January 2017 and July 2018. Postoperative computed tomography was performed to evaluate the reduction state within a week of the surgery. Clinical and radiological data from 7 patients who were followed up for more than 2 years were analyzed. Results The mean age of the patients was 61.7 years (range, 35-87 years). The mean follow-up period was 28.6 months (range, 24-42 months). The mean preoperative fracture gap and step-off values were 12.3 ± 4.4 mm and 6.8 ± 4.0 mm, respectively. Surgical stabilization was conducted 6.4 days (range, 4-13 days) after trauma. Mean postoperative-preoperative fracture gap and step-off values were 0.6 ± 0.6 mm and 0.6 ± 0.8 mm, respectively. At 24 months after surgery, the mean Constant score was 89.1 ± 10.6 points (range, 69-100) and the mean pain visual analog scale score was 1.4 ± 1.7 (range, 0-5). Bony union was observed in all patients. The mean time to bony union was 11 ± 1.7 weeks. The mean active range values for forward elevation, external rotation, and abduction were 162.9° ± 11.1° (range, 150°-180°), 55.7° ± 15.1° (range, 30°-70°), and 158.6° ± 10.7° (range, 150°-180°), respectively. Conclusions The presented posterior open reduction and internal fixation without capsular incision or extensive soft-tissue dissection may be an easy and less invasive surgical approach for inferior glenoid fossa fractures (Ideberg type II).
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Affiliation(s)
- Ji-Kang Park
- Department of Orthopaedic Surgery, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Ho-Seung Jeong
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, Korea
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Lee S, Kim C, Kim H, Ahn SG, Cho S, Park JK, Moon JY, Won H, Suh Y, Cho JR, Cho YH, Oh SJ, Lee BK, Kime JS. Perioperative risk and benefit of antiplatelet therapy in patients undergoing non-cardiac surgery within 1 year after percutaneous coronary intervention with second-generation drug-eluting stents. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1395] [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
Antiplatelet therapy (APT) in patients undergoing non-cardiac surgery (NCS) after percutaneous coronary intervention (PCI) is still on debate due to its opposite effects which are to prevent from cardiovascular events and to cause bleeding. There is no apparent consensus on how to determine perioperative APT strategy within 1 year after PCI. Therefore, we investigated the risk and benefit of APT in NCS within 1 year after PCI.
Methods
Patients undergoing NCS after PCI with second-generation drug-eluting stents are retrospectively included from multicenter cohort of 8 medical centers in Korea. Perioperative clinical event within 30 days after NCS was recorded. Net adverse clinical event (NACE) including all cause death, major adverse cardiac event (MACE, a composite of cardiac death, myocardial infarction, and stent thrombosis) and major bleeding were evaluated. To overcome bias, propensity score covariate adjustment was performed using logistic regression analysis to generate propensity scores for patients of both APT strategies.
Results
Total 1130 patients (median age 69 years, female 30.5%) undergoing NCS within 1 year after PCI were eligible in the cohort. Study population included 55.1% patients suffered from ACS and 22.5% underwent complex PCI. NCS included 45.8% intermediate-to-high risk surgery and 10.7% urgent or emergent surgery. APT was continued during NCS in 62.7% of the patients. More patients continued DAPT (48% vs. 32%, p<0.001) among the patients who underwent NCS within 6 months after PCI than those who underwent NCS after 6 months. There were 49 NACE (4.3%), 16 MACE (1.4%) and 23 major bleeding events (2.0%), respectively. Continuing APT was associated with a lower risk of NACE (Adjusted hazard ratio [HR], 0.49; 95% confidence interval [CI], 0.27–0.89; p=0.020)) and MACE (Adjusted HR, 0.35; 95 CI, 0.12–0.96; p=0.042). Subgroup analysis showed a tendency that continuing APT might be favorable than discontinuing APT in terms of MACE in patients who were diagnosed with ACS, underwent complex PCI, or underwent NCS within 6 months after PCI.
Conclusions
About two thirds of the patients were continuing APT during NCS. Our findings may support a careful consideration of APT continuation for some of the patients who are undergoing NCS within 1 year after PCI.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S Lee
- Yonsei University, Division of Cardiology , Seoul , Korea (Republic of)
| | - C Kim
- Ewha Womans University Seoul Hospital, Department of Cardiology , Seoul , Korea (Republic of)
| | - H Kim
- NHIS Ilsan Hospital, Division of Cardiology , Goyang , Korea (Republic of)
| | - S G Ahn
- Wonju Severance Christian Hospital, Division of Cardiology , Wonju , Korea (Republic of)
| | - S Cho
- Dankook University, Division of Cardiovascular Medicine , Cheonan-si , Korea (Republic of)
| | - J K Park
- NHIS Ilsan Hospital, Division of Cardiology , Goyang , Korea (Republic of)
| | - J Y Moon
- Cha Bundang Medical Center, Department of Cardiology , Seongnam , Korea (Republic of)
| | - H Won
- Chung-Ang University Hospital, Cardiovascular & Arrhythmia Center , Seoul , Korea (Republic of)
| | - Y Suh
- Myongji Hospital, Department of Cardiology , Goyang , Korea (Republic of)
| | - J R Cho
- Kangnam Sacred Heart Hospital, Division of Cardiology , Seoul , Korea (Republic of)
| | - Y H Cho
- Myongji Hospital, Department of Cardiology , Goyang , Korea (Republic of)
| | - S J Oh
- NHIS Ilsan Hospital, Division of Cardiology , Goyang , Korea (Republic of)
| | - B K Lee
- Gangnam Severance Hospital, Division of Cardiology , Seoul , Korea (Republic of)
| | - J S Kime
- Yonsei University, Division of Cardiology , Seoul , Korea (Republic of)
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Park H, Yu HT, Kim TH, Park J, Park JK, Kang KW, Shim J, Kim JB, Choi EK, Park HW, Lee YS, Joung B. Oral anticoagulation therapy in atrial fibrillation patients with advanced chronic kidney disease: CODE-AF Registry. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.628] [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 and objectives
Advanced chronic kidney disease (CKD), including end-stage renal disease (ESRD) on dialysis, increases thromboembolic risk among patients with atrial fibrillation (AF). This study examined the comparative safety and efficacy of direct-acting oral anticoagulant (DOAC) compared to warfarin or no OAC among AF patients with advanced CKD or ESRD on dialysis.
Methods
Using data from the COmparison study of Drugs for symptom control and complication prEvention of AF (CODE-AF) registry, 260 non-valvular AF patients with advanced CKD (defined as estimated glomerular filtration rate [eGFR] <3 0ml/min per 1.73 m2) or ESRD on dialysis were enrolled from June 2016 to July 2020. The study population was categorized into DOAC, warfarin, and no OAC group, and differences in major or clinically relevant non-major (CRNM) bleeding, stroke/systemic embolism (SE), myocardial infarction/critical limb ischemia (CLI), and death were assessed.
Results
During a median 24 months of follow-up, major or CRNM bleeding risk was significantly reduced in the DOAC group compared to the warfarin group (hazard ratio [HR] 0.21, 95% confidence interval [CI] 0.05 to 0.95, p=0.042). In addition, the risk of composite adverse clinical outcome (major or CRNM bleeding, stroke/SE, myocardial infarction/CLI, and death) was significantly reduced in the DOAC group compared to the no OAC group (HR 0.32, 95% CI 0.11 to 0.96, p=0.043).
Conclusion
Among AF patients with advanced CKD or ESRD on dialysis, DOAC was associated with a lower risk of major or CRNM bleeding compared to warfarin and a lower risk of composite adverse clinical outcome compared to no OAC.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Korean Healthcare Technology R&D project funded by the Ministry of Health & Welfare (HI15C1200, HC19C0130)
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Affiliation(s)
- H Park
- Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H T Yu
- Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - T H Kim
- Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - J Park
- Ewha Womans University School of Medicine , Seoul , Korea (Republic of)
| | - J K Park
- Hanyang university medical center , Seoul , Korea (Republic of)
| | - K W Kang
- Eulji University College of Medicine , Seoul , Korea (Republic of)
| | - J Shim
- Korea University Anam Hospital , Seoul , Korea (Republic of)
| | - J B Kim
- Kyunghee University , Seoul , Korea (Republic of)
| | - E K Choi
- Seoul National University Hospital , Seoul , Korea (Republic of)
| | - H W Park
- Chonnam National University School of Medicine , Gwangju , Korea (Republic of)
| | - Y S Lee
- Daegu Catholic University Medical Center , Daegu , Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine , Seoul , Korea (Republic of)
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Park H, Yu HT, Kim TH, Park J, Park JK, Kang KW, Shim J, Kim JB, Kim J, Choi EK, Park HW, Lee YS, Joung B. Resting heart rate and cardiovascular outcomes in patients with atrial fibrillation: CODE-AF registry. Europace 2022. [DOI: 10.1093/europace/euac053.182] [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: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
The prognostic significance of resting heart rate and its therapeutic target in atrial fibrillation (AF) is uncertain.
Purpose
The aim of this study was to investigate the relationships between resting heart rate and cardiovascular outcomes in patients with AF.
Methods
A total of 8,886 patients with AF was included from the COmparison study of Drugs for symptom control and complication prEvention of AF (CODE-AF) registry. Patients were categorized according to baseline heart rate, and cardiovascular outcomes were accessed during a median follow-up of 30 months. The primary outcome was a composite of cardiovascular death, hospitalization due to heart failure, and myocardial infarction/critical limb ischemia.
Results
Compared to heart rate ≥100 beats per minute (bpm), heart rate 80-99 bpm was associated with the lowest risk of primary outcome (adjusted hazard ratio [HR] 0.56, 95% confidence interval [CI] 0.40-0.79, p=0.001). In subgroup of patients with heart failure with preserved ejection fraction (HFpEF), heart rate between 80-99 bpm was associated with reduced risk of primary outcome compared to heart rate ≥100 bpm (HR 0.40, 95% CI 0.16-0.98, p=0.045). However, in patients with heart failure with reduced ejection fraction (HFrEF), there was no association between resting heart rate and cardiovascular outcomes (P for interaction 0.001).
Conclusion
Resting heart rate was associated with cardiovascular outcomes in patients with AF, and those with a resting heart rate between 80-99 bpm had the lowest risk of adverse events. The impact of resting heart rate on adverse events persisted in patients with concomitant HFpEF but was not apparent in those with concomitant HFrEF.
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Affiliation(s)
- H Park
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - HT Yu
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - TH Kim
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - J Park
- Ewha Womans University School of Medicine, Seoul, Korea (Republic of)
| | - JK Park
- Hanyang University Seoul Hospital, Seoul, Korea (Republic of)
| | - KW Kang
- Eulji University College of Medicine, Seoul, Korea (Republic of)
| | - J Shim
- Korea University Medical Center, Seoul, Korea (Republic of)
| | - JB Kim
- Kyung Hee University Hospital, Seoul, Korea (Republic of)
| | - J Kim
- University of Ulsan College of Medicine, Seoul, Korea (Republic of)
| | - EK Choi
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - HW Park
- Chonnam National University School of Medicine, Gwangju, Korea (Republic of)
| | - YS Lee
- Daegu Catholic University Medical Center, Daegu, Korea (Republic of)
| | - B Joung
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
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Lee Y, Shin J, Park JK, Shin JH, Kim HJ, Park HC, Heo R. Associations between changing patterns of ST-T waves morphologies in rest electrocardiography and cardiovascular risk in an asymptomatic low risk population: a report from Ansan-Ansung cohort study. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2522] [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
While clinical significance of ST-T wave abnormalities (STA) in rest electrocardiography (ECG) on long-term cardiovascular outcomes has been on debate, few studies have been reported on the association between the changes in ST-T waves in rest ECG and cardiovascular outcomes in low risk populations. We investigate the changing patterns of STA in rest ECG and the predictive value of the changes in ST-T wave in rest ECG for cardiovascular events in an asymptomatic general population.
Methods
A longitudinal community-based cohort study was conducted for 12 years. Koreans aged 40–69 years were followed biennially through scheduled revisit for comprehensive assessments. Among 10,030 participants, 6,648 participants who did not have any cardiovascular diseases, angina-related symptoms or pathologic Q waves in rest ECG at baseline were included for analysis. Changes in STAs were defined using the changes between ECG at baseline and that at the first revisit. A major adverse cardiovascular events was defined as a composite of cardiac death, myocardial infarction, clinical diagnosis of coronary artery disease and stroke.
Results
Among 5,924 participants without STA at baseline, only 187 participants (3.2%) developed new STA. Among 724 patients (10.9%) with STA at baseline, 274 patients (37.8%) persistently showed STA at the first revisit. MACEs occurred more frequently in the participants persistently with STA and those with newly-developed STA than in the participants persistently without STA (Figure 1). Multivariate Cox-proportional hazard models showed that a higher risk of MACE was only associated with the persisted STA (HR 1.69; 95% CI 1.10–2.63). In participants with baseline STA, persisted T-wave flattening was associated with a higher risk of MACE, whereas T-wave inversion, either persisted or fluctuated was not associated with a higher risk of MACE, compared with persistent absence of STA (Figure 2). In the participants without baseline STAs, multivariate Cox-proportional hazard model showed that newly-developed T-wave flattening (HR 1.85; 95% CI 0.20–2.84), not T-wave inversion (HR 1.50; 95% CI 0.85–2.65) was associated with a higher risk of MACE. Survival receiver operating curve analysis showed that the changes in STAs had a C-index of 0.538 (95% CI 0.511–0.558), a sensitivity of 13.0% and a specificity of 92.5% and add only a small value to the predictive power of 10-year atherosclerotic cardiovascular diseases risk estimator (C-index without STA changes 0.708 [0.681–0.736] vs. C-index with STA changes 0.721 [0.694–0.748]).
Conclusions
STAs uncommonly developed while frequently disappeared spontaneously in the asymptomatic general population. Persisted STA and newly developed STA in rest ECG were predictive of future cardiovascular events in the asymptomatic general population. However, the changes in STAs did not significantly improve the predictive value of the conventional risk estimator, when added.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Research Foundation of Korea Figure 1Figure 2
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Affiliation(s)
- Y Lee
- Hanyang University Guri Hospital, Seoul, Korea (Republic of)
| | - J Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J K Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J H Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - H J Kim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - H C Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - R Heo
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
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Lee Y, Shin J, Shin JH, Kim HJ, Ryu MH, Park HC, Lim HY, Park JK, Heo R, Kim WH. Simulation and validation for count-based binary decision of target blood pressure achievement in home blood pressure monitoring data analysis for clinical practice. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2351] [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
Introduction
Home blood pressure monitoring (HBPM) is a useful tool to identify hypertension and to decide whether a patient's blood pressure (BP) is controlled. The use of automatized oscillometric BP measurement devices has become increasingly popular with help of information technology and internet of things to the devices. However, applying HBPM to daily clinical practices is still challenging, because most patients with hypertension are in age groups not familiar to digital devices and internet and high BP criteria using average home BP values are often useless in outpatient clinics without easily accessible average BP calculation tools. Therefore, we developed a simple and straightforward method to interpret HBPM through counts of BP ≥135/85 mmHg.
Methods
We simulated 400 cases of HBPM using a random number generator function in statistical software. The simulated average home systolic BP (SBP) and its standard deviation (SD) were 125±15 mmHg and 12±5 mmHg and the number of HBP readings was 24 times. The simulated diastolic BP (DBP) was randomly selected to 50–75% of the SBP. The validation of the binary interpretation method was conducted using actual HBPM data from 386 subjects in a rural area of South Korea. Receiver operating characteristics curve analysis was conducted, and linear regression and logarithmic models were fitted between the numbers of home BP ≥135/85 mmHg and mean BP. Hypertension was defined with average home BP ≥135/85 mmHg.
Results
In the simulated cohort, hypertension was presented in 197 cases (49.3%). The C-index of the numbers of BP readings ≥135/85 mmHg was 0.994 (95% confidence interval [CI] 0.990–0.998), and ≥12 of 24 BP readings ≥135/85 mmHg showed a sensitivity of 95.4%, a specificity of 95.1% and an accuracy of 95.3% for the diagnosis of hypertension. In validation cohort, the numbers of home BP measurements varied from 8 to 81 times. The validation cohort similarly showed that the C-index of the ratio between the number of high BP readings (≥135/85 mmHg) to the number of BP measurements (R-NHBP/NBP) was 0.985 (95% CI, 0.976–0.994) and the best accuracy was shown at R-NHBP/NBP of ≥0.45. R-NHBP/NBP of ≥0.5 showed a sensitivity of 0.957, a specificity of 0.907 and an accuracy of 0.927. The accuracy of the R-NHBP/NBP of ≥0.5 decreased as SD and the range of SBP increased, whereas it did not change with the number of measurements (Figure 1). R-NHBP/NBP <0.2 predicted normotension and R-NHBP/NBP >0.8 predicted hypertension in 95% confidence. Mean widths of the 95 prediction intervals for the average SBP and DBP were 18.2 mmHg and 12.6 mmHg, respectively (Figure 2).
Conclusion
Counting the number of BP ≥135/85 mmHg can provide accurate assessments for the BP levels. R-NHBP/NBP of ≥0.5 is a simple and accurate marker of high BP in HBPM, and R-NHBP/NBP could be a useful tool to assess BP levels in patients practicing HBPM.
Funding Acknowledgement
Type of funding sources: None. Figure 1Figure 2
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Affiliation(s)
- Y Lee
- Hanyang University Guri Hospital, Seoul, Korea (Republic of)
| | - J Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J H Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - H J Kim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - M H Ryu
- Hanyang University Guri Hospital, Seoul, Korea (Republic of)
| | - H C Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - H Y Lim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J K Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - R Heo
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - W H Kim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
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Park JK, Choi SM, Kang SW, Kim KJ, Min KT. Three-dimensional measurement of the course of the radial nerve at the posterior humeral shaft: An in vivo anatomical study. J Orthop Surg (Hong Kong) 2021; 28:2309499020930828. [PMID: 32627674 DOI: 10.1177/2309499020930828] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
PURPOSE Iatrogenic radial nerve injury caused by surgical exposure of the humerus is a serious complication. We aimed to describe the course of the radial nerve at the posterior humeral shaft using a three-dimensional (3D) reconstruction technique by utilizing computed tomography (CT) images of living subjects. We hypothesized that the course of the radial nerve in the posterior aspect of the humeral shaft would be reliably established using this technique and the measurements would have satisfactory intraobserver/interobserver reliabilities. METHODS This in vivo anatomical study utilized 652 upper extremity CT angiography images from 326 patients. A 3D modeling of the humerus and radial nerve was performed. We evaluated the segment of the radial nerve that lays directly on the posterior aspect of the humeral shaft and measured its proximal point, mid, and distal points. The shortest distances from the olecranon fossa to these points were defined as R1, R2, and R3, respectively. The relationships between these parameters and humeral length (HL) and transcondylar length (TL) were evaluated, and the intraobserver/interobserver reliabilities of these parameters were measured. RESULTS The HL was 293.6 mm, and TL was 58.64 mm on average. The R1 measured 159.2 (range 127.1-198.2) mm, R2 was 136.6 (105.7-182.5), and R3 was 112.8 (76.8-150.0) mm on average (p < .001). The intraobserver/interobserver reliabilities ranged from 0.90 to 0.98. CONCLUSION The course of the radial nerve at the posterior aspect of the humeral shaft can be reliably established using the 3D reconstruction technique, and all measurements had excellent intraobserver/interobserver reliability.
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Affiliation(s)
- Ji-Kang Park
- Department of Orthopaedic Surgery, School of Medicine, Chungbuk National University Hospital, Cheongju, Korea
| | - Seung-Myung Choi
- Department of Orthopaedic Surgery, School of Medicine, Chungbuk National University Hospital, Cheongju, Korea.,Department of Orthopedic Surgery, Konkuk University Chungju Hospital, Konkuk University School of Medicine, Chungju, Korea.,Department of Orthopedic Surgery, Graduate School of Medicine, Chungbuk National University, Cheongju, Korea
| | - Sang-Woo Kang
- Department of Orthopaedic Surgery, School of Medicine, Chungbuk National University Hospital, Cheongju, Korea
| | - Kook-Jong Kim
- Department of Orthopaedic Surgery, School of Medicine, Chungbuk National University Hospital, Cheongju, Korea
| | - Kyoung-Tae Min
- Department of Orthopaedic Surgery, School of Medicine, Chungbuk National University Hospital, Cheongju, Korea
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Park J, Cha JK, Min KT. Kirschner wire fixation with distal interphalangeal joint hyperextension for treatment of chronic tendinous mallet finger. J Hand Surg Eur Vol 2020; 45:522-524. [PMID: 31986970 DOI: 10.1177/1753193420902004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- JiKang Park
- Department of Orthopaedic surgery, Chungbuk National University Hospital, Cheongju, Korea
| | - Jung Kwon Cha
- Department of Orthopaedic surgery, Chungbuk National University Hospital, Cheongju, Korea
| | - Kyoung Tae Min
- Department of Orthopaedic surgery, Chungbuk National University Hospital, Cheongju, Korea
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Kang SW, Kim KJ, Park JK, Jeong HS, Cha JK, Kim YH. Closure of Persistent, Small, Posterior Elbow Soft Tissue Defects Using a Rotation Flap: A Retrospective Study. Wound Manag Prev 2020. [DOI: 10.25270/wmp.2020.3.4047] [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: 11/05/2022]
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Kang SW, Kim KJ, Park JK, Jeong HS, Cha JK, Kim YH. Closure of Persistent, Small, Posterior Elbow Soft Tissue Defects Using a Rotation Flap: A Retrospective Study. Wound Manag Prev 2020; 66:40-47. [PMID: 32294055] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
UNLABELLED Treating soft tissue defects occurring over the posterior elbow is challenging. PURPOSE This study aimed to evaluate the long-term outcomes of using rotation flaps for soft tissue defects over the posterior elbow. METHODS A retrospective study was conducted among patients who had sustained posterior elbow defects and underwent rotation flap under local anesthesia between January 2, 2011, and December 31, 2014. Patient inclusion criteria stipulated the soft tissue defect had to be small (<12 cm2), was the result of wound dehiscence following posterior approach surgery immediately following trauma, and had failed to heal using nonsurgical treatment or primary closure. Patients with an active infection, malignancies, a defect of any etiology other than trauma, or incomplete operative data were excluded. Patient demographics, medical history, operative reports, and outcomes were abstracted. Flap failure and surgical complications were monitored for a minimum of 2 years after surgery. Range of motion (ROM; 0˚ to normal 130˚) and Mayo Elbow Performance Scores (MEPS) were evaluated and recorded before surgery and after 2 years' follow-up and included evaluating pain, ROM, stability, and daily function. Patient, wound, surgical, and wound healing variables were compared between the flap survival and flap failure/complication groups using Mann-Whitney U and chi-squared tests. The Wilcoxon signed-rank test was used to compare pre- and postoperative MEPS and elbow ROM. RESULTS Thirty (30) patients (13 male, 17 female; mean age 55 ± 15.6 [range 19-74] years) had complete records. Eighteen (18) flaps were created using the transolecranon approach, and 12 rotation flaps involved an olecranon fracture; 24 flaps survived and 6 patients experienced flap failure/complications (wound dehiscence or infection). Mean procedure duration was 25.6 ± 10.1 minutes. All defects were located over the olecranon with exposed bone or hardware. Mean defect size was 7.4 cm2 ± 2.9 cm2, the average defect duration was 60.4 (range 31-89) days, average time to wound healing was 21.9 ± 11.5 days, and mean follow-up time was 29.4 (range 24-56) months. All flaps successfully survived without recurrence. Mean pre- and postoperative MEPS were significantly different (56.4 vs. 90.2 points; P <.001). ROM did not differ significantly between mean preoperative range (extension 9.8˚ ± 3.2˚ and flexion 116.7˚ ± 10.2˚) and mean final follow-up range (extension 9.6˚ ± 2.6˚ and flexion 118.5˚ ± 11.3˚; P = .459). CONCLUSION Rotation flap surgery performed under local anesthesia may offer a simple and safe option in the treatment of small (<12 cm2) trauma-related defects over the posterior elbow. More research is needed to develop evidence-based guidelines for optimal approaches to posterior elbow soft tissue defect closure techniques.
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Affiliation(s)
- Sang-Woo Kang
- Chungbuk National University Hospital, Cheongju, Korea
| | - Kook-Jong Kim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji-Kang Park
- Chungbuk National University Hospital, Cheongju, Korea
| | | | - Jung-Kwon Cha
- Chungbuk National University Hospital, Cheongju, Korea
| | - Yoon-Ho Kim
- Chungbuk National University Hospital, Cheongju, Korea
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Lee Y, Park HC, Shin JH, Lim YH, Park JK, Shin J, Kim KS, Kim BK. P5298Influence of the changes in body fat on all-cause and cardiovascular mortality in a general population: a report from Ansan-Ansung cohort in the Korean genome environment study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0269] [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
Paradoxical beneficial effects of obesity on all-cause and cardiovascular mortality have been reported in multiple cohort studies based on patients with cardiovascular disease as well as general populations. However, the association between the presence of obesity at baseline and the better survival rates could not be directly interpreted into the beneficial effect of gain in obesity or fatness on the mortality, which makes it difficult to provide any recommendation for the management of obesity. Therefore, we investigated the influence of the changes in body fat on all-cause and cardiovascular mortality in a general population.
Methods
A population-based cohort study has been conducted for 12 years (from 2001 to 2012). A total of 5,259 subjects in whom body compositions using a bio-impedance method were measured at least 2 times during the observational period were included. The causes of death was identified from the nation-wide database in KOSTAT. I20-I82 and R99 in the International Classification of Disease-10 codes were defined as a cardiovascular death. The subjects were evenly divided into 3 groups by the percentages of the changes in body fat (Δ%BF; decreased [Δ%BF <0.0%] vs. increased [Δ%BF 0.0–13.7%] vs. highly increased [Δ%BF ≥13.7%]). Inverse probability of treatment weighting was applied to balance the covariate differences among the groups.
Results
The age was 51.2±8.5 years and 51.6% was male. Median observation duration was 163 (the interquartile range: 157–168) months. The all-cause death and cardiovascular death occurred most frequently in the decreased Δ%BF group and least frequent in the highly increased Δ%BF group in both unweighted and weighted cohort. Multivariate Cox proportional hazard models showed that the risk of all-cause death was lower in the increased and highly increased Δ%BF groups (hazard ratio [HR] 0.61 [0.47–0.80] and 0.24 [0.17–0.34], respectively) and the risk of cardiovascular death was lower in the highly increased Δ%BF group (HR 0.20 [0.08–0.48]), compared to those in the decreased Δ%BF group after adjustment for all covariates including physical activities and the changes in muscle mass. The risk of all-cause death and cardiovascular death linearly decreased with increasing Δ%BF (HR 0.72 [0.67–0.77] and 0.70 [0.60–0.82], respectively).
Conclusion
The increase in body fat is associated with a lower risk of all-cause death and cardiovascular death in a middle-age general population, independently with physical activities and the changes in muscle mass.
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Affiliation(s)
- Y Lee
- Hanyang University Kuri Hospital, Department of cardiology, Guri, Korea (Republic of)
| | - H C Park
- Hanyang University Kuri Hospital, Department of cardiology, Guri, Korea (Republic of)
| | - J H Shin
- Hanyang University Kuri Hospital, Department of cardiology, Guri, Korea (Republic of)
| | - Y H Lim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J K Park
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - J Shin
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - K S Kim
- Hanyang University, Division of Cardiology, Department of internal medicine, Seoul, Korea (Republic of)
| | - B K Kim
- Sung Ae Hospital, Department of Cardiology, Seoul, Korea (Republic of)
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Abstract
Abstract
Purpose
Patients with diabetes mellitus have an elevated risk of atrial fibrillation (AF). However, whether insulin resistance may elevate risk of AF incidence in non-diabetic is inconsistent. The aim of our study was to verify the association between insulin resistance and incidence of AF in non-diabetics.
Methods
We evaluated population-based cohorts embedded in the Korean Genome Epidemiology Study. Insulin resistance was expressed as Homeostasis Model Assessment for Insulin resistance (HOMA-IR). Baseline data including HOMA-IR and electrocardiography (ECG) were obtained at 2001. Subsequent biennial ECG was performed for identification of AF until 2016.
Results
Among the 8220 participants (46.8% male; median age 49 years), 25 participants had AF (0.3%) at baseline and 101 participants developed AF (1.2%) during follow up of 12 years. In multivariate Cox regression analysis, high HOMA-IR (≥1.4) was significantly associated with incident AF compared with low HOMA-IR (<1.40) (adjusted hazard ratio [HR] 1.9, 95% confidence interval [CI] 1.3–3.0). In subgroup analysis, these association was consistent regardless of obesity (BMI<25; adjust HR 1.8, 95% CI 1.1–3.0, BMI≥25; adjust HR 2.3, 95% CI 1.3–4.0)
Subgroup analysis
Conclusion
Based on prospective cohort study, insulin resistance (HOMA-IR) was associated with AF independently of obesity in non-diabetics.
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Affiliation(s)
- J K Park
- Hanyang University, Seoul, Korea (Republic of)
| | - J H Park
- Hanyang University, Seoul, Korea (Republic of)
| | - Y G Lee
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea (Republic of)
| | - J H Shin
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea (Republic of)
| | - Y H Lim
- Hanyang University, Seoul, Korea (Republic of)
| | - R Heo
- Hanyang University, Seoul, Korea (Republic of)
| | - J Shin
- Hanyang University, Seoul, Korea (Republic of)
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Kang SW, Park HM, Park JK, Jeong HS, Cha JK, Go BS, Min KT. Open cubital and carpal tunnel release using wide-awake technique: reduction of postoperative pain. J Pain Res 2019; 12:2725-2731. [PMID: 31571976 PMCID: PMC6754514 DOI: 10.2147/jpr.s210366] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 03/28/2019] [Accepted: 08/29/2019] [Indexed: 12/31/2022] Open
Abstract
Purpose This study aimed to compare the efficacy of and patient satisfaction with the wide-awake local anesthesia with no tourniquet (WALANT) technique in open cubital and carpal tunnel release surgery. Methods From January 2016 to February 2017, 20 cubital tunnel syndrome (CuTS) patients were in a wide-awake (WA) group and 22 in a general (GA) anesthesia group in . Also, 20 carpal tunnel syndrome (CTS) patients were in a WA group, 22 in a local anesthesia (LA) group, and 20 in a GA group. Injection pain, perioperative pain, and postoperative pain were assessed using a 10-point pain VAS. In CuTS, functional outcome on the “quick” Disabilities of the Arm, Shoulder, and Hand questionnaire were evaluated. In CTS, subjective outcomes were assessed using the Korean version of the Michigan Hand Outcomes Questionnaire. Results Both CuTS and CTS showed significant postoperative pain reduction in group WA. In CuTS, group WA had less pain than group GA up to 48 hours after surgery (P<0.05). Supplemental opioid injections were used on hospitalization day by 12% of group WA and 35% of group GA. In CTS, the postoperative VAS scores in group WA were lower during the first 24 hours than groups LA and GA (P<0.05). Opioid injections were used on hospitalization day by 5% of WA, 18% of LA, and 32% of group GA. There was no difference in postoperative functional outcomes according to anesthesia method in CuTS or CTS. Conclusion Cubital and carpal tunnel surgery using the WALANT technique was comparable in function to other anesthesia methods and superior for pain. Immediate postoperative pain was much lower than other groups, which could reduce the use of opioids during hospitalization.
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Affiliation(s)
- Sang-Woo Kang
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, South Korea
| | - Hye-Mi Park
- Department of Psychiatry, Chungbuk National University Hospital, Cheongju, South Korea
| | - Ji-Kang Park
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, South Korea
| | - Ho-Seung Jeong
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, South Korea
| | - Jung-Kwon Cha
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, South Korea
| | - Ban-Suk Go
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, South Korea
| | - Kyoung-Tae Min
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, South Korea
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Cho BK, Park JK. Correlation Between Joint-Position Sense, Peroneal Strength, Postural Control, and Functional Performance Ability in Patients With Chronic Lateral Ankle Instability. Foot Ankle Int 2019; 40:961-968. [PMID: 31018674 DOI: 10.1177/1071100719846114] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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] [Indexed: 02/01/2023]
Abstract
BACKGROUND The first aim of this study was to evaluate the side-to-side difference of joint-position sense, peroneal strength, postural control, and functional performance ability in patients with chronic lateral ankle instability. The second aim was to identify the correlation between various components contributing to the functional ankle instability (FAI). METHODS Thirty-five patients to be scheduled for the modified Broström procedure for chronic ankle instability were analyzed. Joint-position sense and peroneal strength were measured with an isokinetic dynamometer. Postural control ability was evaluated using the modified Romberg test. The functional performance test consisted of the 1-leg hop test, 6-meter hop test, and cross 3-m hop test. Spearman's correlation coefficient (r) was calculated to determine the linear association between the individual components of the FAI. RESULTS Except for the 6-m and cross 3-m hop tests, most examination tools for the FAI demonstrated significant side-to-side differences compared with the unaffected ankle. Spearman's correlation analysis revealed that individual components (joint-position sense, peroneal strength, postural control, and functional performance ability) of the FAI were significantly associated with one another, except between peroneal strength and postural control ability (r = 0.21, P = .195). CONCLUSION Joint-position sense, peroneal strength, postural control ability, and 1-leg hop test demonstrated significant side-to-side differences in patients with chronic lateral ankle instability. Individual components contributing to the FAI were significantly correlated with one another, except between peroneal strength and postural control ability. Postural control evaluation using the modified Romberg test could substitute for dynamometer testing, with convenience and economic advantage. LEVEL OF EVIDENCE Level IV, prospective case series.
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Affiliation(s)
- Byung-Ki Cho
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ji-Kang Park
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
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16
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Cho BK, Park JK. Realignment Calcaneal Osteotomy for Bilateral Complete Talocalcaneal Synostosis: A Case Report. J Foot Ankle Surg 2019; 58:599-603. [PMID: 30914151 DOI: 10.1053/j.jfas.2018.11.002] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Indexed: 02/03/2023]
Abstract
Talocalcaneal synostosis is a congenital failure of the segmentation between tarsal bones. It may be very difficult to differentiate from talocalcaneal coalition, known as the most common tarsal coalition, especially in cases with a large bone bridge. Complete talocalcaneal synostosis is very rare, and there are few references in the literature about the clinical outcomes and operative methods for symptomatic synostosis. We report a case of a 15-year-old female with bilateral complete talocalcaneal synostosis and heel varus deformity who has experienced good clinical results after lateral sliding calcaneal osteotomy for hindfoot realignment.
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Affiliation(s)
- Byung-Ki Cho
- Professor, Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea.
| | - Ji-Kang Park
- Professor, Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
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Cho BK, Park JK. Correlation Between Joint-Position Sense, Peroneal Strength, Postural Control, and Functional Performance Ability in Patients With Chronic Lateral Ankle Instability. Foot Ankle Int 2019. [PMID: 31018674 DOI: 10.1177/1071100719846114.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The first aim of this study was to evaluate the side-to-side difference of joint-position sense, peroneal strength, postural control, and functional performance ability in patients with chronic lateral ankle instability. The second aim was to identify the correlation between various components contributing to the functional ankle instability (FAI). METHODS Thirty-five patients to be scheduled for the modified Broström procedure for chronic ankle instability were analyzed. Joint-position sense and peroneal strength were measured with an isokinetic dynamometer. Postural control ability was evaluated using the modified Romberg test. The functional performance test consisted of the 1-leg hop test, 6-meter hop test, and cross 3-m hop test. Spearman's correlation coefficient (r) was calculated to determine the linear association between the individual components of the FAI. RESULTS Except for the 6-m and cross 3-m hop tests, most examination tools for the FAI demonstrated significant side-to-side differences compared with the unaffected ankle. Spearman's correlation analysis revealed that individual components (joint-position sense, peroneal strength, postural control, and functional performance ability) of the FAI were significantly associated with one another, except between peroneal strength and postural control ability (r = 0.21, P = .195). CONCLUSION Joint-position sense, peroneal strength, postural control ability, and 1-leg hop test demonstrated significant side-to-side differences in patients with chronic lateral ankle instability. Individual components contributing to the FAI were significantly correlated with one another, except between peroneal strength and postural control ability. Postural control evaluation using the modified Romberg test could substitute for dynamometer testing, with convenience and economic advantage. LEVEL OF EVIDENCE Level IV, prospective case series.
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Affiliation(s)
- Byung-Ki Cho
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ji-Kang Park
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
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Kang SW, Park JK, Shon HC, Choi ES, Kim DS, Min KT. Skin graft using MatriDerm® for plantar defects after excision of skin cancer. Cancer Manag Res 2019; 11:2947-2950. [PMID: 31118770 PMCID: PMC6498964 DOI: 10.2147/cmar.s198568] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 03/04/2019] [Indexed: 11/23/2022] Open
Abstract
Skin cancer should be excised with sufficient margin to reduce recurrence rate. However, the surgeon always has to worry about the reconstruction method of skin defects after excision. In particular, defects in the plantar surface of the foot are difficult to reconstruct due to their position and structure, and various methods are applied by each surgeon. Surgeons think which methods are easier to apply to patients and less morbidity. To alleviate these concerns, we applied artificial dermal substitute to skin defects after skin cancer. Bowen’s disease (squamous cell carcinoma in situ) and melanoma in situ on the plantar surface of the foot were subjected to wide excision with sufficient margin. After excision, a skin defect with exposed plantar fascia was applied with a matrix defect and vacuum. A granulation tissue (dermal matrix) was formed and a split-thickness skin graft was performed. Both patients had good functional results and no problems with skin donor sites. Thus, we report a skin graft method that is relatively easy to apply after skin cancer excision on the plantar surface of the foot.
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Affiliation(s)
- Sang-Woo Kang
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, Korea
| | - Ji-Kang Park
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, Korea
| | - Hyun-Chul Shon
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, Korea
| | - Eui-Sung Choi
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, Korea
| | - Dong-Soo Kim
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, Korea
| | - Kyoung-Tae Min
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Cheongju, Korea
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Cho BK, Park JK, Choi SM, Kang SW, SooHoo NF. The peroneal strength deficits in patients with chronic ankle instability compared to ankle sprain copers and normal individuals. Foot Ankle Surg 2019; 25:231-236. [PMID: 29409189 DOI: 10.1016/j.fas.2017.10.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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: 07/21/2017] [Revised: 10/02/2017] [Accepted: 10/29/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND Despite a consensus regarding the correlation of peroneal strength deficit with chronic ankle instability (CAI), there are conflicting reports in regards to peroneal strength as assessed by isokinetic dynamometer in patients with CAI. The purpose of this study was to evaluate the changes of isokinetic strength in patients with CAI compared to ankle sprain copers and normal individuals. METHODS Forty-two patients (CAI group) with chronic ankle instability who were scheduled for the modified Broström procedure met inclusion criteria. Thirty-one ankle sprain copers (ASC group) who were eligible at 6 months after acute injury and 30 controls were recruited. The muscle strength associated with four motions of the ankle were evaluated using isokinetic dynamometer. RESULTS Peak torque for inversion and eversion at 60°/s angular velocity were significantly lower in the CAI group compared to the ASC and control group (P=.004, P<.001, respectively). Deficit ratio of peak torque for eversion at 60°/s and 120°/s in the CAI group were 33.8% and 19.8%, respectively, which indicated significant side to side differences (both P<.001). The evertor/invertor strength ratio (0.59) for eversion at 60°/s was significantly lower in the CAI group (P<.001). CONCLUSION As compared to the ankle sprain copers and normal individuals, patients with chronic ankle instability who were scheduled for modified Broström procedure demonstrated a significant weakness of isokinetic peroneal strength. Isokinetic muscular assessment can provide the useful preoperative informations regarding functional ankle instability focusing on peroneal weakness.
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Affiliation(s)
- Byung-Ki Cho
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea.
| | - Ji-Kang Park
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Seung-Myung Choi
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Sang-Woo Kang
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Nelson F SooHoo
- Department of Orthopaedic Surgery, School of Medicine, University of California, Los Angeles, CA, USA
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Cho BK, Park JK, Choi SM, SooHoo NF. Is generalized ligamentous laxity a prognostic factor for recurred hallux valgus deformity? Foot Ankle Surg 2019; 25:127-131. [PMID: 29409294 DOI: 10.1016/j.fas.2017.09.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 05/17/2017] [Revised: 07/13/2017] [Accepted: 09/23/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND This study was performed to evaluate the intermediate-term clinical outcomes after proximal chevron osteotomy for hallux valgus in patients with generalized ligamentous laxity, and to determine the effect on postoperative recurrence of deformity. METHODS There were 23 cases in laxity group (Beighton score ≥5 points) and 175 in non-laxity group with a mean followup of 46.3 months. Clinical evaluation consisted of the AOFAS score, Foot and Ankle Ability Measure (FAAM), and radiographic measurement of hallux alignment. Risk factors associated with postoperative recurrence were evaluated using univariate analysis. RESULTS Recurrence rates were 21.7% in the laxity group and 17.1% in non-laxity group (P=.218). There were no significant differences in clinical and radiographic measurements at final followup between the 2 groups. Preoperative HVA and IMA were found to be predictive factors of recurrence (OR=6.3, 4.2; P=.001, .018, respectively). CONCLUSION There were no statistical differences in the clinical and radiographic outcomes between hallux valgus with and without generalized ligamentous laxity. Generalized ligamentous laxity demonstrated no definitive effects on postoperative recurrence of hallux valgus deformity.
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Affiliation(s)
- Byung-Ki Cho
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, South Korea.
| | - Ji-Kang Park
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, South Korea
| | - Seung-Myung Choi
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, South Korea
| | - Nelson F SooHoo
- Department of Orthopaedic Surgery, School of Medicine, University of California, Los Angeles, CA, USA
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Cho MS, Kim J, Park JK, Kim TH, Lee JM, Park JB, Park HW, Kang KW, Shim JM, Uhm JS, Kim JB, Kim CS, Lee YS, Choi EK, Joung BY. P5796Prevalence and correlates of left atrial enlargement based on left atrial volume index in korean patients with non-valvular atrial fibrillation: data from comparison study of drugs for symptom control. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- M S Cho
- Asan Medical Center, Heart Institute, Seoul, Korea Republic of
| | - J Kim
- Asan Medical Center, Heart Institute, Seoul, Korea Republic of
| | - J K Park
- Hanyang University, Seoul, Korea Republic of
| | - T H Kim
- Yonsei University, Seoul, Korea Republic of
| | - J M Lee
- Kyunghee University, Seoul, Korea Republic of
| | - J B Park
- Ewha University, Seoul, Korea Republic of
| | - H W Park
- Chonnam National University Hospital, Gwangju, Korea Republic of
| | - K W Kang
- Eulji University Hospital, Daejeon, Korea Republic of
| | - J M Shim
- Korea University, Seoul, Korea Republic of
| | - J S Uhm
- Yonsei University, Seoul, Korea Republic of
| | - J B Kim
- Kyunghee University, Seoul, Korea Republic of
| | - C S Kim
- Yonsei University, Seoul, Korea Republic of
| | - Y S Lee
- Catholic University of Daegu, Daegu, Korea Republic of
| | - E K Choi
- Seoul National University, Seoul, Korea Republic of
| | - B Y Joung
- Yonsei University, Seoul, Korea Republic of
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Park JK, Choi YW, Kim BS, Chang KS, Lee YG, Shin JH, Lim YH, Park HC, Shin J. P1880Independent effect of physical activity and resting heart rate on incidence of atrial fibrillation in general population. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J K Park
- Hanyang University, Seoul, Korea Republic of
| | - Y W Choi
- Hanyang University, Seoul, Korea Republic of
| | - B S Kim
- Hanyang University, Seoul, Korea Republic of
| | - K S Chang
- Hanyang University, Seoul, Korea Republic of
| | - Y G Lee
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea Republic of
| | - J H Shin
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea Republic of
| | - Y H Lim
- Hanyang University, Seoul, Korea Republic of
| | - H C Park
- Hanyang University Kuri Hospital, Cardiology, Guri, Korea Republic of
| | - J Shin
- Hanyang University, Seoul, Korea Republic of
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Lee Y, Park JK, Lim YH, Shin JH, Park HC, Shin J, Kim KS. 5047C-reactive protein and the risk of atrial fibrillation: KOGES 12 years' follow-up study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.5047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Lee
- Hanyang University, Seoul, Korea Republic of
| | - J K Park
- Hanyang University, Seoul, Korea Republic of
| | - Y H Lim
- Hanyang University, Seoul, Korea Republic of
| | - J H Shin
- Hanyang University, Seoul, Korea Republic of
| | - H C Park
- Hanyang University, Seoul, Korea Republic of
| | - J Shin
- Hanyang University, Seoul, Korea Republic of
| | - K S Kim
- Hanyang University, Seoul, Korea Republic of
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Shon HC, Park JK, Kim DS, Kang SW, Kim KJ, Hong SH. Supracondylar process syndrome: two cases of median nerve neuropathy due to compression by the ligament of Struthers. J Pain Res 2018; 11:803-807. [PMID: 29713193 PMCID: PMC5907893 DOI: 10.2147/jpr.s160861] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The supracondylar process is a beak-shaped bony process on the anteromedial aspect of the distal humerus. The ligament of Struthers is a fibrous band extending from the tip of the process to the medial epicondyle. The median nerve and brachial artery pass under the ligament of Struthers and consequently can be compressed, causing supracondylar process syndrome. As a rare cause of proximal median nerve entrapment, supracondylar process syndrome is triggered when the median nerve is located in the superficial or deep layer of the ligament of Struthers as a result of anatomical variation. The supracondylar process can be easily detected on X-ray images obtained in oblique views but may not be identified in only anteroposterior or lateral views. In this article, we present 2 cases of supracondylar process syndrome and describe the process of diagnosis and treatment and results of a literature review.
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Affiliation(s)
- Hyun-Chul Shon
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Chungbuk National University, Cheongju, Korea
| | - Ji-Kang Park
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Chungbuk National University, Cheongju, Korea
| | - Dong-Soo Kim
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Chungbuk National University, Cheongju, Korea
| | - Sang-Woo Kang
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Chungbuk National University, Cheongju, Korea
| | - Kook-Jong Kim
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Chungbuk National University, Cheongju, Korea
| | - Seok-Hyun Hong
- Department of Orthopaedic Surgery, Chungbuk National University Hospital, Chungbuk National University, Cheongju, Korea
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25
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Cho BK, Park JK, Choi SM, SooHoo NF. The Effect of Peroneal Muscle Strength on Functional Outcomes After the Modified Broström Procedure for Chronic Ankle Instability. Foot Ankle Int 2018; 39:105-112. [PMID: 28992742 DOI: 10.1177/1071100717735838] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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] [Indexed: 02/01/2023]
Abstract
BACKGROUND Although the peroneal muscles are known to be the major dynamic lateral stabilizers of the ankle, little information is available regarding the change in muscle strength and relation with the outcomes after lateral ligament repair surgery. The purpose of this study was to identify the effects of peroneal strength on the validated functional outcome measures after the modified Broström procedure (MBP) for chronic ankle instability. METHODS Forty-one patients (41 ankles) who underwent MBP using suture anchors were eligible and followed up to 2 years postoperatively. Functional evaluation consisted of the Foot and Ankle Outcome Score (FAOS), and Foot and Ankle Ability Measure (FAAM). The changes of peroneal strength were evaluated using an isokinetic dynamometer. Differences in the functional outcomes between the 3 groups divided according to the recovery rate of peroneal strength were analyzed. RESULTS Peak torque and total work for eversion in 60 degrees/s angular velocity significantly improved from a mean 8.1 and 5.2 Nm preoperatively to 11.4 and 6.9 Nm at postoperative 2 years, respectively ( P < .001, P = .038). The deficit ratio of peak torque for eversion significantly improved from a mean 38.6% to 17.4%, and a significant side-to-side difference was found ( P = .011). There were no significant differences in FAOS, FAAM, and measurements of stress radiograph between the 3 groups. CONCLUSIONS Although restoration of peroneal strength postoperatively was about 82.6% of the unaffected ankle, patient-reported function in daily and sport activities were satisfactorily improved. Postoperative isokinetic strength of the peroneals demonstrated no statistically significant effects on the functional outcomes after MBP. LEVEL OF EVIDENCE Level III, prospective comparative case series.
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Affiliation(s)
- Byung-Ki Cho
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ji-Kang Park
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Seung-Myung Choi
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Nelson F SooHoo
- 2 Department of Orthopaedic Surgery, School of Medicine, University of California, Los Angeles, CA, USA
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Abstract
Inadvertent intra-arterial drug injection occurs rarely, but it can cause very serious clinical complications, and thus, awareness of inadvertent intra-arterial drug injection is needed. The complications mainly result from iatrogenic reasons and can occur because of vascular variations in the arteries, under circumstances where normal intravenous injection is difficult, or in drug abusers who perform self-injection. The adverse effect associated with intra-arterial drug injection is serious and may lead to necrosis, requiring amputation of the affected extremity, infection, pseudoaneurysm, rhabdomyolysis, compartment syndrome, and permanent disability. However, the etiology of such adverse effects has not been clearly identified and treatment methods have not yet been established. We encountered a patient who developed necrosis of the thumb after an inadvertent injection of diclofenac sodium in the radial artery due to variations in the forearm arteries. Here, we report the prevention and treatment of, and precautions against, the dangers of intra-arterial drug injection.
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Affiliation(s)
- Hyun-Chul Shon
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ji-Kang Park
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Sang-Woo Kang
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Jae-Young Yang
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
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Chae MR, Kang SJ, Lee KP, Choi BR, Kim HK, Park JK, Kim CY, Lee SW. Onion (Allium cepa L.) peel extract (OPE) regulates human sperm motility via protein kinase C-mediated activation of the human voltage-gated proton channel. Andrology 2017; 5:979-989. [PMID: 28805023 DOI: 10.1111/andr.12406] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 09/29/2016] [Revised: 06/13/2017] [Accepted: 06/27/2017] [Indexed: 01/14/2023]
Abstract
Onion (Allium cepa L.) and quercetin protect against oxidative damage and have positive effects on multiple functional parameters of spermatozoa, including viability and motility. However, the associated underlying mechanisms of action have not yet been identified. The aim of this study was to investigate the effect of onion peel extract (OPE) on voltage-gated proton (Hv1) channels, which play a critical role in rapid proton extrusion. This process underlies a wide range of physiological processes, particularly male fertility. The whole-cell patch-clamp technique was used to record the changes in Hv1 currents in HEK293 cells transiently transfected with human Hv1 (HVCN1). The effects of OPE on human sperm motility were also analyzed. OPE significantly activated the outward-rectifying proton currents in a concentration-dependent manner, with an EC50 value of 30 μg/mL. This effect was largely reversible upon washout. Moreover, OPE induced an increase in the proton current amplitude and decreased the time constant of activation at 0 mV from 4.9 ± 1.7 to 0.6 ± 0.1 sec (n = 6). In the presence of OPE, the half-activation voltage (V1/2 ) shifted in the negative direction, from 20.1 ± 5.8 to 5.2 ± 8.7 mV (n = 6), but the slope was not significantly altered. The OPE-induced current was profoundly inhibited by 10 μm Zn2+ , the most potent Hv1 channel inhibitor, and was also inhibited by treatment with GF109203X, a specific protein kinase C (PKC) inhibitor. Furthermore, sperm motility was significantly increased in the OPE-treated groups. OPE exhibits protective effects on sperm motility, at least partially via regulation of the proton channel. Moreover, similar effects were exerted by quercetin, the major flavonoid in OPE. These results suggest OPE, which is rich in the potent Hv1 channel activator quercetin, as a possible new candidate treatment for human infertility.
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Affiliation(s)
- M R Chae
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S J Kang
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - K P Lee
- Laboratory of Physiology, College of Veterinary Medicine, Chungnam National University, Daejeon, Korea
| | - B R Choi
- Department of Urology, Medical School and Institute for Medical Sciences, Chonbuk National University, Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University Hospital, Jeonju, Korea
| | - H K Kim
- College of Pharmacy, Kyungsung University, Busan, Korea
| | - J K Park
- Department of Urology, Medical School and Institute for Medical Sciences, Chonbuk National University, Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University Hospital, Jeonju, Korea
| | - C Y Kim
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Korea
| | - S W Lee
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
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Ahn HJ, Lee SJ, Park JK, Jun BG, Seo HI, Han KH, Kim YD, Jeong WJ, Cheon GJ. Catheter probe endoscopic ultrasonography by using cold lubricating jelly-filled method for esophageal subepithelial tumors. Dis Esophagus 2017; 30:1-6. [PMID: 28575248 DOI: 10.1093/dote/dox035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 01/05/2017] [Accepted: 03/29/2017] [Indexed: 12/11/2022]
Abstract
Catheter probe endoscopic ultrasonography (C-EUS) by ultrasonographic jelly-filled method has been used to evaluate esophageal subepithelial tumors (SETs). Ultrasonographic jelly is safe on the skin, but its internal safety has not been demonstrated. The jelly stored at room temperature is easily injected into the esophagus through the instrument channel of the endoscope. However, using jelly stored at room temperature remains problematic because the jelly is drained rapidly. We used cold lubricating jelly and an intravenous extension tube to resolve these problems. In this study, we evaluated the safety and efficacy of cold lubricating jelly-filled method. The medical records of patients who underwent C-EUS by using water or cold lubricating jelly-filled method for esophageal SETs from March 2013 to September 2016 in Gangneung Asan hospital were reviewed. Clinical characteristics and EUS findings were evaluated retrospectively. Image quality and procedure time between water and cold lubricating jelly-filled method were compared retrospectively. This study included 138 patients (74 males, 64 females) with esophageal SET with a mean age of 57.1 ± 11.1 years. Thirty-four patients had lesions in the upper esophagus, 58 patients had lesions in the middle esophagus, and 46 patients had lesions in the lower esophagus. The EUS diagnoses were leiomyoma (82.6%), hemangioma (4.3%), extrinsic compressive lesion (3.6%), granulosa cell tumor (2.9%), ectopic calcification (1.4%), cyst (1.4%), lipoma (0.7%), varix (0.7%), and inconclusive lesion (2.2%). The mean image score in the cold lubricating jelly filled-method group was higher than that in the water-filled method group (3.2 ± 0.7 vs. 2.8 ± 0.7, P = 0.002). The procedure time in the cold lubricating jelly filled-method group was shorter than that in the water-filled method group (10 minutes 27 seconds ± 4 minutes 22 seconds versus 13 minutes 20 seconds ± 6 minutes 20 seconds, P = 0.045). No procedure-related complication was observed. C-EUS using the cold lubricating jelly-filled method seems to provide better image quality and shorter procedure time compared with C-EUS using the water-filled method.
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Affiliation(s)
- H J Ahn
- Department of Internal Medicine, Gangneung Asan Hospital, Ulsan University College of Medicine, Gangneung, Korea
| | - S J Lee
- Department of Internal Medicine, Gangneung Asan Hospital, Ulsan University College of Medicine, Gangneung, Korea
| | - J K Park
- Department of Internal Medicine, Gangneung Asan Hospital, Ulsan University College of Medicine, Gangneung, Korea
| | - B G Jun
- Department of Internal Medicine, Gangneung Asan Hospital, Ulsan University College of Medicine, Gangneung, Korea
| | - H I Seo
- Department of Internal Medicine, Gangneung Asan Hospital, Ulsan University College of Medicine, Gangneung, Korea
| | - K H Han
- Department of Internal Medicine, Gangneung Asan Hospital, Ulsan University College of Medicine, Gangneung, Korea
| | - Y D Kim
- Department of Internal Medicine, Gangneung Asan Hospital, Ulsan University College of Medicine, Gangneung, Korea
| | - W J Jeong
- Department of Internal Medicine, Gangneung Asan Hospital, Ulsan University College of Medicine, Gangneung, Korea
| | - G J Cheon
- Department of Internal Medicine, Gangneung Asan Hospital, Ulsan University College of Medicine, Gangneung, Korea
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Choo SH, Lee SW, Chae MR, Kang SJ, Sung HH, Han DH, Chun JN, Park JK, Kim CY, Kim HK, So I. Effects of eupatilin on the contractility of corpus cavernosal smooth muscle through nitric oxide-independent pathways. Andrology 2017; 5:1016-1022. [PMID: 28719725 DOI: 10.1111/andr.12397] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 05/26/2017] [Accepted: 06/09/2017] [Indexed: 12/19/2022]
Abstract
Eupatilin (5,7-dihydroxy-3,4,6-trimethoxyflavone) is one of the main compounds present in Artemisia species. Eupatilin has both antioxidative and anti-inflammatory properties and a relaxation effect on vascular contraction regardless of endothelial function. We evaluated the relaxant effects of eupatilin on the corpus cavernosum (CC) of rabbits and the underlying mechanisms of its activity in human corpus cavernosum smooth muscle (CCSM) cells. Isolated rabbit CC strips were mounted in an organ bath system. A conventional whole-cell patch clamp technique was used to measure activation of calcium-sensitive K+ -channel currents in human CCSM cells. The relaxation effect of eupatilin was evaluated by cumulative addition (10-5 m ~ 3 × 10-4 m) to CC strips precontracted with 10-5 m phenylephrine. Western blotting analysis was performed to measure myosin phosphatase targeting subunit 1 (MYPT1) and protein kinase C-potentiated inhibitory protein for heterotrimeric myosin light chain phosphatase of 17-kDa (CPI-17) expression and to evaluate the effect of eupatilin on the RhoA/Rho-kinase pathway. Eupatilin effectively relaxed the phenylephrine-induced tone in the rabbit CC strips in a concentration-dependent manner with an estimated EC50 value of 1.2 ± 1.6 × 10-4 m (n = 8, p < 0.05). Iberiotoxin and tetraethylammonium significantly reduced the relaxation effect (n = 8, p < 0.001 and p = 0.003, respectively). Removal of the endothelium or the presence of L-NAME or indomethacin did not affect the relaxation effect of eupatilin. In CCSM cells, the extracellular application of eupatilin 10-4 m significantly increased the outward currents, and the eupatilin-stimulated currents were significantly attenuated by treatment with 10-7 m iberiotoxin (n = 13, p < 0.05). Eupatilin reduced the phosphorylation level of MYPT1 at Thr853 of MLCP and CPI-17 at Thr38. Eupatilin-induced relaxation of the CCSM cells via NO-independent pathways. The relaxation effects of eupatilin on CCSM cells were partially due to activation of BKCa channels and inhibition of RhoA/Rho-kinase.
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Affiliation(s)
- S H Choo
- Department of Urology, Ajou University School of Medicine, Suwon, Korea
| | - S W Lee
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - M R Chae
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S J Kang
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - H H Sung
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - D H Han
- Department of Urology, Samsung Medical Center, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J N Chun
- Department of Physiology and Biomedical Sciences, Seoul National University College of Medicine, Seoul, Korea
| | - J K Park
- Department of Urology, Institute for Medical Sciences, Medical School, Chonbuk National University, Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University Hospital, Jeonju, Korea
| | - C Y Kim
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Korea
| | - H K Kim
- College of Pharmacy, Kyungsung University, Busan, Korea
| | - I So
- Department of Physiology, Seoul National University College of Medicine, Seoul, Korea
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Abstract
BACKGROUND Hallux rigidus can be treated using several different methods and the best treatment option depends on the severity of degenerative changes of the metatarsophalangeal (MTP) joint. However, the ideal operative option for advanced hallux rigidus remains debatable. This prospective study was performed to evaluate the intermediate-term clinical outcomes of distal metatarsal osteotomy used as a joint-preserving method for the treatment of advanced hallux rigidus. METHODS Forty-two cases (39 patients) were followed for more than 3 years after distal metatarsal dorsiflexion osteotomy for advanced hallux rigidus of grade III-IV. Clinical evaluations included the American Orthopaedic Foot & Ankle Society (AOFAS) scores, Foot and Ankle Ability Measure (FAAM) scores, and patient subjective satisfaction scores. Range of motion (ROM) of great toe, complications, reoperation rates, width of the MTP joint space, and times to union were evaluated. RESULTS Mean AOFAS hallux and mean FAAM scores significantly improved from 56.4 and 61.2 points preoperatively to 87.6 and 88.7 points at final follow-up, respectively ( P < .001). Grade III and IV groups had significantly different AOFAS and FAAM scores at final follow-up. Mean dorsiflexion of great toe significantly improved from 14.8° preoperatively to 35.5° at final follow-up ( P < .001). Mean patient satisfaction score at final follow-up was 92.8 points. There were 4 cases (9.5%) of subsequent fusion and 2 cases (4.8%) of transfer metatarsalgia. CONCLUSIONS Distal metatarsal dorsiflexion osteotomy using bio-compression screws appears to be an effective operative option for grade III advanced hallux rigidus with viable cartilage on >50% of the first metatarsal articular surface, as it restored joint motion, provided reliable pain relief, and did not require implant removal. However, based on the unsatisfactory clinical results and the high rate of reoperation observed, the authors cannot recommend this operative method for the treatment of end-stage (grade IV) hallux rigidus. LEVEL OF EVIDENCE Level IV, prospective case series.
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Affiliation(s)
- Byung-Ki Cho
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Kyoung-Jin Park
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ji-Kang Park
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Nelson F SooHoo
- 2 Department of Orthopaedic Surgery, School of Medicine, University of California, Los Angeles, CA, USA
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Cho BK, Park KJ, Park JK, SooHoo NF. Outcomes of the Modified Broström Procedure Augmented With Suture-Tape for Ankle Instability in Patients With Generalized Ligamentous Laxity. Foot Ankle Int 2017; 38:405-411. [PMID: 28367693 DOI: 10.1177/1071100716683348] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [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] [Indexed: 02/01/2023]
Abstract
BACKGROUND Although recent biomechanical studies have reported mechanical superiority of augmented anterior talofibular ligament reconstruction using suture-tape, clinical evidence regarding the efficacy of suture-tape augmentation is still insufficient. This prospective study was performed to evaluate the outcomes of the modified Broström procedure augmented with suture-tape for chronic ankle instability with generalized ligamentous laxity, which has been known to be a poor prognostic factor for anatomic ligament repair. METHODS Twenty-eight patients with generalized ligamentous laxity were followed for more than 2 years after the augmented modified Broström procedures for chronic ankle instability. Generalized ligamentous laxity was defined as a Beighton score ≥4 points. The clinical evaluation consisted of the Foot and Ankle Outcome Score (FAOS) and Foot and Ankle Ability Measure (FAAM) score. Measurement of talar tilt angle and anterior talar translation was obtained from stress radiographs to evaluate mechanical ankle stability. RESULTS FAOS and FAAM scores had significantly improved from preoperative average 63.2 and 54.3 points to 90.6 and 89.5 points at final follow-up, respectively ( P < .001). Talar tilt angle and anterior talar translation had significantly improved from preoperative average 16.2° and 12.1 mm to 3.6° and 4.2 mm at final follow-up, respectively ( P < .001). Preoperative side-to-side comparison with stress radiographs was significantly different, but this returned to within nonstatistical differences at final follow-up, respectively ( P = .105, .532). Although 6 patients sustained an ankle sprain after operation, only 1 patient (3.6%) showed a recurrence of subjective and mechanical instability. CONCLUSIONS Suture-tape augmentation for the modified Broström procedure appears to be an effective operative alternative for chronic ankle instability with generalized ligamentous laxity. As one of the methods to improve the clinical outcomes in patients with relative contraindications of the modified Broström repair, this procedure provided reliable stability with the advantages of anatomic ligament repair through the augmentation using suture-tape. LEVEL OF EVIDENCE Level IV, prospective case series.
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Affiliation(s)
- Byung-Ki Cho
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Kyoung-Jin Park
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ji-Kang Park
- 1 Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Nelson F SooHoo
- 2 Department of Orthopaedic Surgery, School of Medicine, University of California, Los Angeles, CA, USA
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Lee WY, Park MH, Kim KW, Song H, Kim KB, Lee CS, Kim NK, Park JK, Yang BC, Oh KB, Im GS, Chung HJ. Identification of lactoferrin and glutamate receptor-interacting protein 1 in bovine cervical mucus: A putative marker for oestrous detection. Reprod Domest Anim 2016; 52:16-23. [DOI: 10.1111/rda.12744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 07/01/2016] [Indexed: 11/28/2022]
Affiliation(s)
- WY Lee
- Department of Food Bioscience; College of Biomedical & Health Science; Konkuk University; Chung-ju Korea
| | - MH Park
- Department of Biomedical Chemistry; College of Biomedical & Health Science; Konkuk University; Chung-ju Korea
- Doosan Venture Digm 924; Dongan-gu Anyang Korea
| | - KW Kim
- Animal Biotechnology Division; National Institute of Animal Science; Wanju-gun Korea
| | - H Song
- Department of Animal Biotechnology; Konkuk University; Gwangjin-gu Seoul Korea
| | - KB Kim
- Korea Institute for Animal Products Quality Evaluation; Gunpo Korea
| | - CS Lee
- Department of Biomedical Chemistry; College of Biomedical & Health Science; Konkuk University; Chung-ju Korea
| | - NK Kim
- Experiment Research Institute; National Agricultural Products Quality Management Service (NAQS); Gimcheon Gyeongbuk Korea
| | - JK Park
- Department of Swine & Poultry Science; Korea National College of Agriculture and Fisheries; Jeonju Korea
| | - BC Yang
- Institute of Hanwoo; National institute of animal Science; Pyeongchang Korea
| | - KB Oh
- Animal Biotechnology Division; National Institute of Animal Science; Wanju-gun Korea
| | - GS Im
- Animal Biotechnology Division; National Institute of Animal Science; Wanju-gun Korea
| | - HJ Chung
- Animal Biotechnology Division; National Institute of Animal Science; Wanju-gun Korea
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Kim HJ, Shin YS, Choi H, Kim MK, Jeong YB, Park JK. Undiagnosed nephrogenic diabetes insipidus as a cause of acute urinary retention in a young soldier. J ROY ARMY MED CORPS 2016. [DOI: 10.1136/jramc-2015-000471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Liu W, Choi BR, Bak YO, Zhang LT, Zhou LX, Huang YR, Zhao C, Park JK. Cavernosum smooth muscle relaxation induced by Schisandrol A via the NO-cGMP signaling pathway. Cell Mol Biol (Noisy-le-grand) 2016; 62:115-119. [PMID: 27064883] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Accepted: 03/28/2016] [Indexed: 06/05/2023]
Abstract
To evaluate the effect of Schisandrol A on rabbit corpus cavernosum smooth muscle and elucidate the potential mechanism. Penises were obtained from healthy male New Zealand White rabbits (2.5-3.0 kg). The pre-contracted penis with phenylephrine (Phe, 10 µM) was treated with accumulative concentrations of Schisandrol A (10-7, 10-6, 10-5 and 10-4 M). The change in intracavernosum pressure (ICP) and tension was recorded, cyclic nucleotides in the cavernosum tissue were measured by radioimmunoassay, mRNA level and expression of endothelial nitric oxide synthase (eNOS) and neuronal NOS (nNOS) were measured by real time PCR and western blot respectively. The corpus cavernosum smooth muscle relaxation induced by Schisandrol A was in a dose-dependent manner. Pre-treatment with NOS inhibitor (Nω nitro-L-arginine-methyl ester, L-NAME) or guanylyl cyclase inhibitor (1H-(1,2,4)oxadiazolo(4,3-a)quinoxalin-1-one, ODQ) significantly diminished the relaxation. The cyclic guanosine monophosphate (cGMP) level was significantly increased in the cavernosum tissue. Real time PCR and western blot showed the mRNA level and expression of eNOS and nNOS was also upregulated. Schisandrol A relaxes the cavernosum smooth muscle by activating NO-cGMP signaling pathway. It may be a new promising treatment for erectile dysfunction and cardiovascular disease.
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Affiliation(s)
- W Liu
- Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University and Shanghai Institute of Andrology Departments of Urology Shanghai China
| | - B R Choi
- Chonbuk National University Hospital Departments of Urology Jeonju South Korea
| | - Y O Bak
- Chonbuk National University Hospital Departments of Urology Jeonju South Korea
| | - L T Zhang
- Chonbuk National University Hospital Departments of Urology Jeonju South Korea
| | - L X Zhou
- Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University and Shanghai Institute of Andrology Departments of Urology Shanghai China
| | - Y R Huang
- Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University and Shanghai Institute of Andrology Departments of Urology Shanghai China
| | - C Zhao
- Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University and Shanghai Institute of Andrology Departments of Urology Shanghai China
| | - J K Park
- Chonbuk National University Hospital Departments of Urology Jeonju South Korea
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Choi BR, Kumar SK, Zhao C, Zhang LT, Kim CY, Lee SW, Jeon JH, So I, Kim SH, Park NC, Kum HK, Park JK. Additive effects of Artemisia capillaris extract and scopoletin on the relaxation of penile corpus cavernosum smooth muscle. Int J Impot Res 2016; 28:80. [PMID: 26965159 DOI: 10.1038/ijir.2016.1] [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: 11/09/2022]
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Park JK, Sugita S, Soma T, Yamashiro K, Hasegawa T. Malignant peripheral nerve sheath tumor coexisting with congenital melanocytic nevus in an elderly man. Pathol Int 2016; 66:309-10. [PMID: 26897251 DOI: 10.1111/pin.12392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 12/22/2015] [Accepted: 01/18/2016] [Indexed: 11/30/2022]
Affiliation(s)
- J K Park
- Department of Surgical Pathology, Orthopaedic Surgery, Hokkaido Cancer Center, Sapporo, Japan
| | - S Sugita
- Department of Surgical Pathology, Sapporo Medical University, School of Medicine, Sapporo, Japan
| | - T Soma
- Department of Surgical Pathology, Orthopaedic Surgery, Hokkaido Cancer Center, Sapporo, Japan
| | - K Yamashiro
- Department of Surgical Pathology, Orthopaedic Surgery, Hokkaido Cancer Center, Sapporo, Japan
| | - T Hasegawa
- Department of Surgical Pathology, Sapporo Medical University, School of Medicine, Sapporo, Japan.
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Kim HJ, Park JK, Park SC, Kim YG, Choi H, Ko JI, Kim MK, Jeong YB, Shin YS. The prevalence of causative organisms of community-acquired urethritis in an age group at high risk for sexually transmitted infections in Korean Soldiers. J ROY ARMY MED CORPS 2015; 163:20-22. [PMID: 26607860 DOI: 10.1136/jramc-2015-000488] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 09/24/2015] [Indexed: 11/03/2022]
Abstract
OBJECTIVES This study was designed to evaluate the causative organisms in young male soldiers with clinical signs and symptoms after sexual contact that suggests a diagnosis of urethritis. METHODS Between June 2012 and January 2015, male patients with urethritis symptoms that had resulted from sexual contact within 3 months participated in this study. All patients were evaluated using urinalysis and were screened for Neisseria gonorrhoeae (NG), Chlamydia trachomatis (CT), Ureaplasma urealyticum (UU), Mycoplasma genitalium (MG), Mycoplasma hominis (MH), herpes simplex virus (HSV) type II and Trichomonas vaginalis (TV) using multiplex PCR (mPCR) assay in order to detect sexually transmitted infections (STI) or pathogens. RESULTS A total of 436 male patients aged 18-28 years were included in the study. The median age was 22.0 years. The prevalence of STI pathogens were as follows: NG in 19.0%, CT in 36.6%, UU in 24.0%, MG in 21.5%, MH in 6.1%, HSV type II in 1.6%, TV in 0.2% and indeterminate STI pathogens in 9.4%. Coinfection of NG with non-NG was detected in 5.7% of the participants, while the coinfection rates for STI pathogens were: with CT in 3.4%, with UU in 2.7%, with MG in 0.2% and with MH in 0.2%. CONCLUSIONS CT was the most prevalent STI pathogen and coinfections of NG with non-NG appeared less frequently. The young male soldiers with urethritis should be administered suitable antibiotics for STI pathogens that were found by mPCR results, rather than an experimental combination of antibiotics for coinfections.
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Affiliation(s)
- Hyung Jin Kim
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea
| | - J K Park
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea
| | - S C Park
- Department of Urology, Wonkwang University School of Medicine, Institute of Wonkwang Medical Science, Iksan, Korea
| | - Y G Kim
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea
| | - H Choi
- Department of Urology, Armed Forces Capital Hospital, Seongnam, Korea
| | - J I Ko
- Department of Urology, Armed Forces Capital Hospital, Seongnam, Korea
| | - M K Kim
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea
| | - Y B Jeong
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea
| | - Y S Shin
- Department of Urology, Chonbuk National University Medical School, Jeonju, Korea.,Department of Urology, Armed Forces Capital Hospital, Seongnam, Korea
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Lee WH, Yoo JH, Yang JM, Park JK. Effect of the Film-Growth Defects on the Magnetic Microstructure of Epitaxial FePt Thin Film. J Nanosci Nanotechnol 2015; 15:8688-8692. [PMID: 26726576 DOI: 10.1166/jnn.2015.11498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Effect of the columnar grain boundaries on the perpendicular magnetic domain structure of epitaxial L10 FePt (001) thin film has been studied using electron holography. The analysis of stray fields shows that both the continuous and columnar epitaxial films of L10 FePt (001) consist of perpendicular magnetic domain walls. In the columnar epitaxial film, however, the perpendicular domain walls tend to be confined to columnar grain boundaries, because columnar boundaries act as pinning sites for the domain walls. The domain wall pinning by columnar grain boundaries leads to a significant hysteresis effect in the perpendicular magnetization of L10 FePt epitaxial films.
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Choi BR, Kumar SK, Zhao C, Zhang LT, Kim CY, Lee SW, Jeon JH, Soní KK, So I, Kim SH, Park NC, Kim HK, Park JK. Additive effects of Artemisia capillaris extract and scopoletin on the relaxation of penile corpus cavernosum smooth muscle. Int J Impot Res 2015; 27:225-32. [PMID: 26447600 DOI: 10.1038/ijir.2015.23] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Revised: 06/07/2015] [Accepted: 07/30/2015] [Indexed: 11/09/2022]
Abstract
The objective was to investigate the cellular effect and action mechanism of Artemisia capillaris extract (ACE) and its component, scopoletin, on penile corpus cavernosum smooth muscle (PCCSM). In vitro study with PCCSM, the precontracted PCCSM with phenylephrine was treated with ACE or scopoletin. Cyclic nucleotides in the perfusate were measured by radioimmunoassay and expression of protein and mRNA of endothelial nitric oxide synthase (eNOS) and neuronal nitric oxide synthase in the perfused PCCSM were measured by western blot and real-time PCR, respectively. The interaction of ACE or scopoletin with udenafil was also evaluated. ACE and scopoletin exerted a significant and concentration-dependent relaxation in PCCSM. The perfusion with ACE or scopoletin significantly increased cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) and the perfusion with ACE or scopoletin increased the expression of eNOS mRNA and protein. Furthermore, ACE or scopoletin enhanced udenafil-inducing relaxation in PCCSM. ACE and scopoletin relaxed the PCCSM mainly by activating nitric oxide-cGMP system and cAMP pathway and they may be additive therapeutic candidates for ED patients who do not completely respond to udenafil.
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Affiliation(s)
- B R Choi
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Republic of Korea
| | - S K Kumar
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Republic of Korea
| | - C Zhao
- Department of Urology, Renji Hospital, Jiao Tong University School of Medicine, and Shanghai Institute of Andrology, Shanghai, China
| | - L T Zhang
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Republic of Korea
| | - C Y Kim
- Department of Pharmacognosy, Hangyang University, Ansan, Republic of Korea
| | - S W Lee
- Department of Urology, Sungkyunkwan University Medical School, Seoul, Republic of Korea
| | - J-H Jeon
- Department of Physiology, Seoul National University Medical School, Seoul, Republic of Korea
| | | | - I So
- Department of Physiology, Seoul National University Medical School, Seoul, Republic of Korea
| | - S H Kim
- Department of Physiology, Diabetic Research Center, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - N C Park
- Department of Urology, Pusan National University Hospital, Busan, Republic of Korea
| | - H K Kim
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Republic of Korea
| | - J K Park
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University, Jeonju, Republic of Korea
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Park JK, Lee J, Kim K, Jo YH, Lee JH, Kim J, Lee SM, Song IA. Association of C-Reactive Protein and Outcome in Patients With Community-Acquired Pneumonia. Intensive Care Med Exp 2015. [PMCID: PMC4797359 DOI: 10.1186/2197-425x-3-s1-a523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Park JK, Campos CDM, Neužil P, Abelmann L, Guijt RM, Manz A. Direct coupling of a free-flow isotachophoresis (FFITP) device with electrospray ionization mass spectrometry (ESI-MS). Lab Chip 2015; 15:3495-3502. [PMID: 26183237 DOI: 10.1039/c5lc00523j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present the online coupling of a free-flow isotachophoresis (FFITP) device to an electrospray ionization mass spectrometer (ESI-MS) for continuous analysis without extensive sample preparation. Free-flow-electrophoresis techniques are used for continuous electrophoretic separations using an electric field applied perpendicular to the buffer and sample flow, with FFITP using a discontinuous electrolyte system to concurrently focus a target analyte and remove interferences. The online coupling of FFITP to ESI-MS decouples the separation and detection timeframe because the electrophoretic separation takes place perpendicular to the flow direction, which can be beneficial for monitoring (bio)chemical changes and/or extensive MS(n) studies. We demonstrated the coupling of FFITP with ESI-MS for simultaneous concentration of target analytes and sample clean-up. Furthermore, we show hydrodynamic control of the fluidic fraction injected into the MS, allowing for fluidically controlled scanning of the ITP window. Future applications of this approach are expected in monitoring biochemical changes and proteomics.
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Affiliation(s)
- J K Park
- Korea Institute of Science and Technology (KIST)-Europe, Campus e 7 1, 66123, Germany.
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Park JK, Jeong YB, Han YM, Kim HJ. High-flow priapism caused by injury of the bilateral cavernosal artery after needle trauma in a patient with low-flow priapism. BJU Int 2015; 92 Suppl 3:e7-e8. [PMID: 19125464 DOI: 10.1111/j.1464-410x.2003.02945.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J K Park
- Department of Urology, Chonbuk National University and Research Institute of Clinical Medicine, Chonbuk National University Hospital, Chonju, Chonbuk, Korea.
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Jeon HW, Choi MG, Lim CH, Park JK, Sung SW. Intraoperative esophagoscopy provides accuracy and safety in video-assisted thoracoscopic enucleation of benign esophageal submucosal tumors. Dis Esophagus 2015; 28:437-41. [PMID: 24712727 DOI: 10.1111/dote.12220] [Citation(s) in RCA: 12] [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] [Indexed: 12/11/2022]
Abstract
Benign esophageal tumors are rare; complete surgical resection is essential for the management of the submucosal tumors. Larger, symptomatic, or non-diagnostic lesions should be resected for both diagnostic and therapeutic indications. Video-assisted thoracic surgery has become a popular treatment in the field of thoracic surgery; however, thoracoscopic esophageal surgery may lead to an increase in operative complications. The effect and safety of thoracoscopic surgery for esophageal submucosal lesions were evaluated. A retrospective study evaluated patients undergoing thoracoscopic treatment of benign submucosal tumors. Between March 2011 and December 2013, 17 patients underwent thoracoscopic resection of benign submucocal tumors. Intraoperative esophagoscopy was performed for tumor localization by transillumination and confirmation of mucosal integrity after enucleation in every patient. Median patient age was 47 years (range 30-65). The median surgery time was 170 minutes (range 80-429). The median tumor size was 3.8 cm (range 1.3-9). The median hospital stay was 4 days (range 2-12). There were 16 leiomyoma and 1 neurogenic tumor. There was one case of conversion to thoracotomy because of residual tumor after enucleation. Mucosal injuries occurred in three patients, two accidentally and one intentionally; each patient was treated with primary repair and confirmed integrity with flexible esophagoscopy at operating room. The small sized tumor with intraoperative esophagoscopy could be localized. Esophagoscopic assistance was necessary in eight patients to have better idea where to make myotomy. There were no major morbidities such as postoperative leakage or mortality. Esophageal submucosal tumors can be treated safely with thoracoscopic surgery. However, intraoperative esophagoscopy allows accurate tumor localization, direction of esophageal access incision, and decreases complications during VATS enucleation of esophageal submucosal tumors.
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Affiliation(s)
- H W Jeon
- Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - M-G Choi
- Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - C-H Lim
- Department of Thoracic and Cardiovascular Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - J K Park
- Department of Thoracic and Cardiovascular Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - S W Sung
- Department of Thoracic and Cardiovascular Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
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Lee HN, Lee KS, Kim JC, Chung BH, Kim CS, Lee JG, Kim DK, Park CH, Park JK, Hong SJ. Rate and associated factors of solifenacin add-on after tamsulosin monotherapy in men with voiding and storage lower urinary tract symptoms. Int J Clin Pract 2015; 69:444-53. [PMID: 25363606 DOI: 10.1111/ijcp.12581] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 08/05/2014] [Accepted: 09/29/2014] [Indexed: 11/27/2022] Open
Abstract
AIM To explore the rate of add-on therapy with solifenacin in men with voiding and storage lower urinary tract symptoms (LUTS) after tamsulosin monotherapy and to explore predictive factors for starting solifenacin add-on therapy. METHODS Men aged ≥ 45 years with IPSS ≥ 12 and symptoms of OAB (OAB-V8 ≥ 8, micturition ≥ 8/24 h, urgency ≥ 2/24 h) were enrolled to receive tamsulosin 0.2 mg once daily. After 4 weeks, men with residual symptoms of OAB and reported 'dissatisfied' or 'a little satisfied' were received solifenacin 5 mg in combination with tamsulosin monotherapy. Subjects completed an IPSS, a Quality of life (QoL) index, OAB V8, and an International Consultation of Incontinence Questionnaire (ICIQ)-Male LUTS, and patient perception of bladder condition (PPBC) at baseline and week 4. RESULTS Of a total of 305 patients, 254 patients completed 4 weeks of tamsulosin treatment. For 176 patients, solifenacin was added (69.3%). Significant predictive factors of solifenacin add-on therapy included long LUTS duration, high IPSS, number of micturitions per 24 h, more urgency episodes, high urgency severity score in a voiding diary and high OAB V8 score. Based on multivariable analysis, potential predictive factors of solifenacin add-on therapy included long LUTS duration (OR = 1.008, 95% CI: 1.001-1.014), high serum PSA (OR = 1.543, 95% CI: 1.136-2.095) and small prostate size (OR = 0.970, 95% CI: 0.947-0.994) (p < 0.05). IPSS, daytime micturitions and urgency episodes, OAB V8 scores, ICIQ and PPBC were improved after tamsulosin monotherapy. CONCLUSIONS Two thirds of men with voiding and storage LUTS needed to add anticholinergics after 4 weeks of tamsulosin monotherapy. Patients with longer lasting symptoms and storage symptoms with small prostate volume may require the anticholinergic add-on.
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Affiliation(s)
- H N Lee
- Department of Urology, Seoul Seonam Hospital, Ewha Womans University, Seoul, Korea
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Cho BK, Kim YM, Park KJ, Park JK, Kim DK. A prospective outcome and cost-effectiveness comparison between two ligament reattachment techniques using suture anchors for chronic ankle instability. Foot Ankle Int 2015; 36:172-9. [PMID: 25237170 DOI: 10.1177/1071100714552079] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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] [Indexed: 02/01/2023]
Abstract
BACKGROUND There are various ligament reattachment techniques for the modified Brostrom procedure. There have been few comparative studies on recently developed techniques. This prospective study was performed to compare the functional outcomes of 2 different ligament reattachment techniques using suture anchors. We furthermore evaluated the cost-effectiveness of the suture bridge technique. METHODS Forty-five amateur athletes under 30 years of age were followed for more than 2 years. Twenty-four procedures with the suture anchor technique and 21 procedures with the suture bridge technique were performed by one surgeon. The functional evaluation consisted of the American Orthopaedic Foot & Ankle Society (AOFAS) score, Foot and Ankle Outcome Score (FAOS), Karlsson score, Sefton grading system, and the period to return to various forms of exercise (jogging, spurt running, jumping, one leg standing for >1 minute, walking on uneven ground, and going down stairs). Measurement of talar tilt angle and anterior talar translation was obtained from stress radiographs to evaluate mechanical stability. RESULTS There were no significant differences on AOFAS score, FAOS, Karlsson score, Sefton grade, and stress radiographs. There were no significant differences on the return to exercises, except for jumping. As the most common complication, there were 3 cases of skin irritation by suture materials in the suture anchor group and 2 cases of intraoperative breakage of the suture anchor in suture bridge group. CONCLUSIONS Both ligament reattachment techniques using suture anchors showed similar functional outcomes. Considering the additional medical expenses incurred by more suture anchors, the modified Brostrom procedure using the suture bridge technique had low cost-effectiveness. Proper indication and clinical usefulness of suture bridge technique for chronic ankle instability will be addressed in further studies. LEVEL OF EVIDENCE Level II, prospective comparative study.
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Affiliation(s)
- Byung-Ki Cho
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Yong-Min Kim
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Kyoung-Jin Park
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Ji-Kang Park
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Do-Kyoon Kim
- Department of Orthopaedic Surgery, College of Medicine, Chungbuk National University, Cheongju, Korea
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Shin YS, Lee SW, Park K, Chung WS, Kim SW, Hyun JS, Moon DG, Yang SK, Ryu JK, Yang DY, Moon KH, Min KS, Park JK. Effect of levitra on sustenance of erection (EROS): an open-label, prospective, multicenter, single-arm study to investigate erection duration measured by stopwatch with flexible dose vardenafil administered for 8 weeks in subjects with erectile dysfunction. Int J Impot Res 2014; 27:95-102. [PMID: 25471318 DOI: 10.1038/ijir.2014.39] [Citation(s) in RCA: 3] [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: 09/01/2014] [Accepted: 10/18/2014] [Indexed: 11/09/2022]
Abstract
To investigate the change of erection duration measured by stopwatch with flexible dose vardenafil administered for 8 weeks in subjects with erectile dysfunction (ED). Effect of levitra on sustenance of erection was an open-label, prospective, multicenter and single-arm study designed to measure the duration of erection in men with ED receiving a flexible dose of vardenafil over an 8-week treatment period. Patients were instructed to take vardenafil 10 mg 60 min before attempting the intercourse. Vardenfil could be increased to 20 mg or decreased to 5 mg concerning patients' efficacy and safety. Following the initial screening, patients entered a 4-week treatment-free run-in phase and 8-week treatment period, during which they were instructed to attempt intercourse at least four times on four separate days. A total of 95 men were enrolled in 10 centers. After the 8 weeks treatment, the mean duration of erection leading to successful intercourse was statistically superior when patients were treated with vardenafil. After an 8-week treatment, the duration of erection leading to successful intercourse was 9.39 min. There were significant benefits with vardenafil in all domains of International Index of Erectile Function. Secondary efficacy end points included success rate of penetration, maintaining erection, ejaculation and satisfaction were superior when patients were treated with vardenafil. There was a significant correlation between duration of erection with other sexual factors. Also partner's sexual satisfaction was increased with vardenafil. Most adverse events were mild or moderate in severity. Vardenafil was safe and well tolerated. Vardenafil therapy provided a statistically superior duration of erection leading to successful intercourse in men with ED with female partner.
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Affiliation(s)
- Y S Shin
- Department of Urology, Chonbuk National University Medical School and Institute for Medical Sciences, Chonbuk National University and Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University Hospital, Jeonju, South Korea
| | - S W Lee
- Department of Urology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - K Park
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - W S Chung
- Department of Urology, Ewha Womans University School of Medicine, Seoul, Korea
| | - S W Kim
- Department of Urology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - J S Hyun
- Department of Urology, Gyeongsang National University School of Medicine, Jinju, Korea
| | - D G Moon
- Department of Urology, Korea University College of Medicine, Seoul, Korea
| | - S-K Yang
- Department of Urology, Konkuk University School of Medicine, Chungju, Korea
| | - J K Ryu
- Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - D Y Yang
- Department of Urology, Hallym University College of Medicine, Chuncheon, Korea
| | - K H Moon
- Department of Urology, Yeungnam University College of Medicine, Daegu, Korea
| | - K S Min
- Department of Urology, Inje University Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - J K Park
- Department of Urology, Chonbuk National University Medical School and Institute for Medical Sciences, Chonbuk National University and Biomedical Research Institute and Clinical Trial Center of Medical Device of Chonbuk National University Hospital, Jeonju, South Korea
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Lee YS, Lee KS, Kim JC, Hong S, Chung BH, Kim CS, Lee JG, Kim DK, Park CH, Park JK. Persistence with solifenacin add-on therapy in men with benign prostate obstruction and residual symptoms of overactive bladder after tamsulosin monotherapy. Int J Clin Pract 2014; 68:1496-502. [PMID: 25284747 DOI: 10.1111/ijcp.12483] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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] [Indexed: 11/28/2022] Open
Abstract
AIMS In spite of the reported efficacy and safety of antimuscarinics in men with OAB (overactive bladder) and BPO (benign prostatic obstruction), many patients do not persist with the treatment. We aimed to evaluate persistence and the reasons for the discontinuation of solifenacin add-on therapy in men with residual symptoms of OAB after tamsulosin monotherapy for BPO in a real clinical environment. METHODS Men aged ≥ 45 years with IPSS ≥ 12 and symptoms of OAB (OAB-V8 ≥ 8, micturition ≥ 8/24 h, urgency ≥ 2/24 h) were prescribed tamsulosin 0.2 mg. After 4 weeks, men who had residual symptoms of OAB (OAB-V8 ≥ 8, micturition ≥ 8/24 h, urgency ≥ 1/24 h) and reported that they were 'dissatisfied' or 'a little satisfied' with the therapy were enrolled and prescribed solifenacin 5 mg in combination with tamsulosin. After 52 weeks, persistence and the reasons for the discontinuation of solifenacin were evaluated. Factors related to persistence were analysed. RESULTS Of the 305 men who had been treated with tamsulosin, 176 were prescribed solifenacin. After 52 weeks, 44 (25%) remained on solifenacin therapy. Of the 132 who discontinued solifenacin, 85 were evaluated on the reason for discontinuation. The three most common reasons for discontinuation were adverse events (AEs) (35%), lack of efficacy (33%), and improvement in symptoms (16%). The aggravation of voiding symptoms was the most common AE leading to discontinuation. Retention was observed in 11 men. None of the demographical or clinical characteristics were significantly related to persistence. CONCLUSIONS Only 25% men with OAB and BPO remained on antimuscarinic add-on therapy after 1 year, mostly because of AEs and lack of efficacy. Realistic data should be added to what is already known about antimuscarinic treatment in men by including patients who were excluded or who dropped out of well-designed clinical trials.
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Affiliation(s)
- Y-S Lee
- Department of Urology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
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Park JK, Park EA, Lee W, Kim YK, Lee EY, Song YW, Lee EB. Baseline MRA predicts the treatment response to vasodilator udenafil in patients with secondary Raynaud's phenomenon. Clin Exp Rheumatol 2014; 32:S-167-70. [PMID: 25189168] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 05/26/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVES High-resolution MR angiography (HR-MRA) demonstrates blood flow in the digital arteries, which correlates with the severity of Raynaud's phenomenon (RP). This study investigates whether baseline HR-MRA of the hand can predict the treatment response to udenafil, a new PDE5-inhibitor, in patients with secondary RP. METHODS Baseline MRA and Doppler ultrasound were obtained in 12 patients with secondary RP. The patients were treated with udenafil 100 mg/day for 4 weeks and changes in blood flow were measured. Blood flow on MRA was scored on a 4-point scale: 0, no visible flow; 1, visible flow to the proximal phalanx; 2, to the middle phalanx; and 3, to the distal phalanx. Peak systolic velocity (PSV) was measured to determine blood flow. Paired t-test and ANOVA were used to determine the treatment response of the different MRA scores. RESULTS On baseline MRA, 53.3% of digital arteries had an MRA score of 0, 25.8% MRA score of 1, 9.2% MRA score of 2, and 11.6% MRA score of 3. Overall, 4-week udenafil treatment improved digital flow (p<0.05) in all MRA scores. Digital arteries with MRA score 2 showed the best response with improvement in PSV by 14.5 mm/sec (p<0.01), whereas improvement in arteries of MRA scores 1 and 3 were not better than an MRA score of 0 (all, p>0.05). CONCLUSIONS Digital arteries with moderate blood flow observed on MRA respond best to treatment with udenalfil. Therefore, baseline MRA may help predict treatment response in patients with secondary RP.
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Affiliation(s)
- J K Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.
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Affiliation(s)
- J J Kim
- Department of Thoracic and Cardiovascular Surgery, Uijeongbu St. Mary's Hospital , Seoul , Korea
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Chung HJ, Kim KW, Han DW, Lee HC, Yang BC, Chung HK, Shim MR, Choi MS, Jo EB, Jo YM, Oh MY, Jo SJ, Hong SK, Park JK, Chang WK. Protein Profile in Corpus Luteum during Pregnancy in Korean Native Cows. Asian-Australas J Anim Sci 2014; 25:1540-5. [PMID: 25049514 PMCID: PMC4093032 DOI: 10.5713/ajas.2012.12294] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Revised: 08/28/2012] [Accepted: 08/12/2012] [Indexed: 01/17/2023]
Abstract
Steroidogenesis requires coordination of the anabolic and catabolic pathways of lipid metabolism, but the profile of proteins associated with progesterone synthesis in cyclic and pregnant corpus luteum (CL) is not well-known in cattle. In Experiment 1, plasma progesterone level was monitored in cyclic cows (n = 5) and pregnant cows (n = 6; until d-90). A significant decline in the plasma progesterone level occurred at d-19 of cyclic cows. Progesterone level in abbatoir-derived luteal tissues was also determined at d 1 to 5, 6 to 13 and 14 to 20 of cyclic cows, and d-60 and -90 of pregnant cows (n = 5 each). Progesterone level in d-60 CL was not different from those in d 6 to 13 CL and d-90 CL, although the difference between d 6 to 13 and d-90 was significant. In Experiment 2, protein expression pattern in CL at d-90 (n = 4) was compared with that in CL of cyclic cows at d 6 to 13 (n = 5). Significant changes in the level of protein expression were detected in 32 protein spots by two-dimensional polyacrylamide gel electrophoresis (2-DE), and 23 of them were identified by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). Six proteins were found only in pregnant CL, while the other 17 proteins were found only in cyclic CL. Among the above 6 proteins, vimentin which is involved in the regulation of post-implantation development was included. Thus, the protein expression pattern in CL was disorientated from cyclic luteal phase to mid pregnancy, and alterations in specific CL protein expression may contribute to the maintenance of pregnancy in Korean native cows.
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Affiliation(s)
- H J Chung
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - K W Kim
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - D W Han
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - H C Lee
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - B C Yang
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - H K Chung
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - M R Shim
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - M S Choi
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - E B Jo
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - Y M Jo
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - M Y Oh
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - S J Jo
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - S K Hong
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - J K Park
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
| | - W K Chang
- National Institute of Animal Science, Rural Development Administration, Suwon, 441-706, Korea
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