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In primary prevention for cardiovascular diseases, there are significant barriers to adherence including freedom from symptoms, long latency for therapeutic benefits, life-long duration of treatment, and need for combined lifestyle changes. However, to implement more systematic approaches, the focus on adherence improvement needs to be shifted away from patient factors to the effects of the treatment team and healthcare system. In addition to conventional educational approaches, more patient-oriented approaches such as patientcentered clinical communication skills, counseling using motivational strategies, decisionmaking by patient empowerment, and a multi-disciplinary team approach should be developed and implemented. Patients should be involved in a program of self-monitoring, self-management, and active counseling. Because most effective interventions on adherence improvement demand greater resources, the health care system and educational or training system of physicians and healthcare staff need to be supported for systematic improvement.
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Background and Objectives@#This study aimed to investigate the association between cardiovascular events and 2 different levels of elevated on-treatment diastolic blood pressures (DBP) in the presence of achieved systolic blood pressure targets (SBP). @*Methods@#A nation-wide population-based cohort study comprised 237,592 patients with hypertension treated. The primary endpoint was a composite of cardiovascular death, myocardial infarction, and stroke. Elevated DBP was defined according to the Seventh Report of Joint National Committee (JNC7; SBP <140 mmHg, DBP ≥90 mmHg) or to the 2017 American College of Cardiology/American Heart Association (ACC/AHA) definitions (SBP <130 mmHg, DBP ≥80 mmHg). @*Results@#During a median follow-up of 9 years, elevated on-treatment DBP by the JNC7 definition was associated with an increased risk of the occurrence of primary endpoint compared with achieved both SBP and DBP (adjusted hazard ratio [aHR], 1.14; 95% confidence interval [CI], 1.05–1.24) but not in those by the 2017 ACC/AHA definition. Elevated ontreatment DBP by the JNC7 definition was associated with a higher risk of cardiovascular mortality (aHR, 1.42; 95% CI, 1.18–1.70) and stroke (aHR, 1.19; 95% CI, 1.08–1.30). Elevated on-treatment DBP by the 2017 ACC/AHA definition was only associated with stroke (aHR, 1.10;95% CI, 1.04–1.16). Similar results were seen in the propensity-score-matched cohort. @*Conclusion@#Elevated on-treatment DBP by the JNC7 definition was associated a high risk of major cardiovascular events, while elevated DBP by the 2017 ACC/AHA definition was only associated with a higher risk of stroke. The result of study can provide evidence of DBP targets in subjects who achieved SBP targets.
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Hypertension is the leading factor of cardiovascular mortality and morbidity. Although antihypertensive medical treatment is the cornerstone of blood pressure control, lifestyle modification, including optimal diet therapy, such as dietary approaches to stop hypertension (DASH), cannot be overemphasized.Current Concepts: Due to the mismatch between sodium intake and excretion process being the key mechanisms according to physiologic principles, low sodium and high potassium intakes are the critical components of DASH. If the patient has a sensitive elevation of blood pressure following increased sodium intake, a low sodium diet could be essential for optimal blood pressure control. Salt sensitivity is increased by the activated reninangiotensin system, sympathetic nervous activity, sodium channels disorder, and endothelial dysfunction and frequently observed in the elderly and patients with obesity and chronic kidney disease. Increased potassium intake could attenuate sodium absorption by affecting the intracellular chloride and WNK4 activity, especially in patients with salt sensitivity or high salt intake.Discussion and Conclusion: For low sodium and high potassium intakes, the Na/K diet ratio could be a good target for intervention, and this approach is a critical component of DASH.
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Purpose@#Patients with atopic dermatitis often have difficulty managing their condition after epiblepharon repair surgery due to edema and itching at the operation site. We examined surgical outcomes in relation to atopic dermatitis. @*Methods@#A retrospective review of medical records was performed on epiblepharon patients and eyelids (patients = 1,829; eyelids = 4,694) that were followed after surgical correction between 2005 and 2016. Patients were classified into those with atopic dermatitis (the atopic dermatitis group) and a control group. Success rates and recurrence rates were compared and analyzed. @*Results@#The mean patient age was 5.82 ± 2.87 years. Of the 200 eyelids with atopic dermatitis, 12 eyelids (6.0%) had undercorrection, as did 108 (2.4%) of the 4,494 eyelids of the control group. Of the 188 eyelids with atopic dermatitis, 13 (6.9%) underwent reoperation due to recurrence, as did 57 (1.3%) of the 4,386 eyelids of the control group. A statistically significant difference between two groups was confirmed in comparing failure rates and recurrence rates (p = 0.002, p < 0.001). @*Conclusions@#The failure rates of surgery and recurrence rates of epiblepharon symptoms were significantly higher in patients with atopic dermatitis. It can be assumed that the suture fixed to the tarsal plate was untied or loosened due to edema and itching of the operation site due to atopic dermatitis. In consideration of this, more effective treatment methods, such as solid suturing, are needed in clinical practice for atopic dermatitis patients.
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Chronic kidney disease (CKD) is associated with increased risk of cardiovascular (CV) events, and the disease burden is rising rapidly. An important contributor to CV events and CKD progression is high blood pressure (BP). The main mechanisms of hypertension in early and advanced CKD are renin-angiotensin system activation and volume overload, respectively. Sodium retention is well known as a factor for high BP in CKD. However, a BP increase in response to total body sodium or volume overload can be limited by neurohormonal modulation. Recent clinical trial data favoring intensive BP lowering in CKD imply that the balance between volume and neurohormonal control could be revisited with respect to the safety and efficacy of strict volume control when using antihypertensive medications. In hemodialysis patients, the role of more liberal use of antihypertensive medications with the concept of functional dry weight for intensive BP control must be studied.
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Background and Objectives@#Hypertension (HTN) is the most contributable risk factor for cardiovascular disease. May Measurement Month (MMM) is a global initiative to raise awareness of HTN and act as a temporary solution to the lack of screening programs worldwide. @*Methods@#An opportunistic cross-sectional survey of participants aged ≥18 was carried out in May 2019. Over 10,000 participants were recruited in the MMM 2019 Korea, with a slogan of “A simple measure to save lives – #checkyourpressure.” @*Results@#A total of 9,950 participants with valid clinical blood pressure (BP) data were used for analysis. All participants were Korean in ethnicity. The mean age was 57.2±21.2 years, 57.8% were females, and the mean body mass index was 23.4±3.3 kg/m 2 . Among the enrolled population, 20.1% were less than 30 years old, and 5.0% were 30–39 years old. 37.0% of the participants reported a previous diagnosis of HTN, and 91.3% of those diagnosed were on antihypertensive medications. Notably, more than 20% of the participants had not measured their BP during the last 12 months, and the awareness rate in the young hypertensive participants (aged <40) was less than 10%. Among hypertensive participants, the treatment rate was 69.3%, and the control rate among those taking medications was 61.2%. @*Conclusion@#MMM 2019 Korea campaign reported high BP control rates in individuals withHTN, reaching 60%. However, the awareness rate in young hypertensive participants was less than 10% along with suboptimal management status. The MMM 2019 Korea again raised the importance of regular BP measurement in the younger population.
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Background/Aims@#To examine the prevalence and clinical characteristics of apparent treatment-resistant hypertension among ambulatory hypertensive patients. @*Methods@#We enrolled adult ambulatory hypertensive patients at 13 well-qualified general hospitals in Korea from January to June 2012. Apparent resistant hypertension was defined as an elevated blood pressure > 140/90 mmHg with the use of three antihypertensive agents, including diuretics, or ≥ 4 antihypertensives, regardless of the blood pressure. Controlled hypertension was defined as a blood pressure within the target using three antihypertensives, including diuretics. @*Results@#Among 16,915 hypertensive patients, 1,172 (6.9%) had controlled hypertension, and 1,514 (8.9%) had apparent treatment-resistant hypertension. Patients with apparent treatment-resistant hypertension had an earlier onset of hypertension (56.8 years vs. 58.8 years, p = 0.007) and higher body mass index (26.3 kg/m2 vs. 24.9 kg/m2, p < 0.001) than those with controlled hypertension. Drug compliance did not differ between groups. In the multivariable analysis, earlier onset of hypertension (odds ratio [OR], 0.98; 95% confidence interval [CI], 0.97 to 0.99; p < 0.001) and the presence of comorbidities (OR, 2.06; 95% CI, 1.27 to 3.35; p < 0.001), such as diabetes mellitus, ischemic heart disease, heart failure, and chronic kidney disease, were independent predictors. Among the patients with apparent treatment-resistant hypertension, only 5.2% were receiving ≥ 2 antihypertensives at maximally tolerated doses. @*Conclusions@#Apparent treatment-resistant hypertension prevalence is 8.9% among ambulatory hypertensive patients in Korea. An earlier onset of hypertension and the presence of comorbidities are independent predictors. Optimization of medical treatment may reduce the rate of apparent treatment-resistant hypertension.
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Background/Aims@#The clinical characteristics of patients with masked uncontrolled hypertension (MUCH) have been poorly defined, and few studies have investigated the clinical predictors of MUCH. We investigated the demographic, clinical, and blood pressure (BP) characteristics of patients with MUCH and proposed a prediction model for MUCH in patients with hypertension. @*Methods@#We analyzed 1,986 subjects who were enrolled in the Korean Ambulatory Blood Pressure Monitoring (Kor-ABP) Registry and taking antihypertensive drugs, and classified them into the controlled hypertension (n = 465) and MUCH (n = 389) groups. MUCH was defined as the presence of a 24-hour ambulatory mean systolic BP ≥ 130 mmHg and/or diastolic BP ≥ 80 mmHg in patients treated with antihypertensive drugs, having normal office BP. @*Results@#Patients in the MUCH group had significantly worse metabolic profiles and higher office BP, and took significantly fewer antihypertensive drugs compared to those in the controlled hypertension group. Multivariate logistic regression analyses identified high office systolic BP and diastolic BP, prior stroke, dyslipidemia, left ventricular hypertrophy (LVH, ≥ 116 g/m2 for men, and ≥ 96 g/m2 for women), high heart rate (≥ 75 beats/min), and single antihypertensive drug use as independent predictors of MUCH. A prediction model using these predictors showed a high diagnostic accuracy (C-index of 0.839) and goodness-of-fit for the presence of MUCH. @*Conclusions@#MUCH is associated with a high-normal increase in office BP and underuse of antihypertensive drugs, as well as dyslipidemia, prior stroke, and LVH, which could underscore achieving optimal BP control. The proposed model accurately predicts MUCH in patients with controlled office BP.
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Background and Objectives@#Hypertension (HTN) is the most contributable risk factor for cardiovascular disease. May Measurement Month (MMM) is a global initiative to raise awareness of HTN and act as a temporary solution to the lack of screening programs worldwide. @*Methods@#An opportunistic cross-sectional survey of participants aged ≥18 was carried out in May 2019. Over 10,000 participants were recruited in the MMM 2019 Korea, with a slogan of “A simple measure to save lives – #checkyourpressure.” @*Results@#A total of 9,950 participants with valid clinical blood pressure (BP) data were used for analysis. All participants were Korean in ethnicity. The mean age was 57.2±21.2 years, 57.8% were females, and the mean body mass index was 23.4±3.3 kg/m 2 . Among the enrolled population, 20.1% were less than 30 years old, and 5.0% were 30–39 years old. 37.0% of the participants reported a previous diagnosis of HTN, and 91.3% of those diagnosed were on antihypertensive medications. Notably, more than 20% of the participants had not measured their BP during the last 12 months, and the awareness rate in the young hypertensive participants (aged <40) was less than 10%. Among hypertensive participants, the treatment rate was 69.3%, and the control rate among those taking medications was 61.2%. @*Conclusion@#MMM 2019 Korea campaign reported high BP control rates in individuals withHTN, reaching 60%. However, the awareness rate in young hypertensive participants was less than 10% along with suboptimal management status. The MMM 2019 Korea again raised the importance of regular BP measurement in the younger population.
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Background/Aims@#To examine the prevalence and clinical characteristics of apparent treatment-resistant hypertension among ambulatory hypertensive patients. @*Methods@#We enrolled adult ambulatory hypertensive patients at 13 well-qualified general hospitals in Korea from January to June 2012. Apparent resistant hypertension was defined as an elevated blood pressure > 140/90 mmHg with the use of three antihypertensive agents, including diuretics, or ≥ 4 antihypertensives, regardless of the blood pressure. Controlled hypertension was defined as a blood pressure within the target using three antihypertensives, including diuretics. @*Results@#Among 16,915 hypertensive patients, 1,172 (6.9%) had controlled hypertension, and 1,514 (8.9%) had apparent treatment-resistant hypertension. Patients with apparent treatment-resistant hypertension had an earlier onset of hypertension (56.8 years vs. 58.8 years, p = 0.007) and higher body mass index (26.3 kg/m2 vs. 24.9 kg/m2, p < 0.001) than those with controlled hypertension. Drug compliance did not differ between groups. In the multivariable analysis, earlier onset of hypertension (odds ratio [OR], 0.98; 95% confidence interval [CI], 0.97 to 0.99; p < 0.001) and the presence of comorbidities (OR, 2.06; 95% CI, 1.27 to 3.35; p < 0.001), such as diabetes mellitus, ischemic heart disease, heart failure, and chronic kidney disease, were independent predictors. Among the patients with apparent treatment-resistant hypertension, only 5.2% were receiving ≥ 2 antihypertensives at maximally tolerated doses. @*Conclusions@#Apparent treatment-resistant hypertension prevalence is 8.9% among ambulatory hypertensive patients in Korea. An earlier onset of hypertension and the presence of comorbidities are independent predictors. Optimization of medical treatment may reduce the rate of apparent treatment-resistant hypertension.
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Background/Aims@#The clinical characteristics of patients with masked uncontrolled hypertension (MUCH) have been poorly defined, and few studies have investigated the clinical predictors of MUCH. We investigated the demographic, clinical, and blood pressure (BP) characteristics of patients with MUCH and proposed a prediction model for MUCH in patients with hypertension. @*Methods@#We analyzed 1,986 subjects who were enrolled in the Korean Ambulatory Blood Pressure Monitoring (Kor-ABP) Registry and taking antihypertensive drugs, and classified them into the controlled hypertension (n = 465) and MUCH (n = 389) groups. MUCH was defined as the presence of a 24-hour ambulatory mean systolic BP ≥ 130 mmHg and/or diastolic BP ≥ 80 mmHg in patients treated with antihypertensive drugs, having normal office BP. @*Results@#Patients in the MUCH group had significantly worse metabolic profiles and higher office BP, and took significantly fewer antihypertensive drugs compared to those in the controlled hypertension group. Multivariate logistic regression analyses identified high office systolic BP and diastolic BP, prior stroke, dyslipidemia, left ventricular hypertrophy (LVH, ≥ 116 g/m2 for men, and ≥ 96 g/m2 for women), high heart rate (≥ 75 beats/min), and single antihypertensive drug use as independent predictors of MUCH. A prediction model using these predictors showed a high diagnostic accuracy (C-index of 0.839) and goodness-of-fit for the presence of MUCH. @*Conclusions@#MUCH is associated with a high-normal increase in office BP and underuse of antihypertensive drugs, as well as dyslipidemia, prior stroke, and LVH, which could underscore achieving optimal BP control. The proposed model accurately predicts MUCH in patients with controlled office BP.
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A role of angiotensin-converting enzyme 2 (ACE2) in the coronavirus disease 2019 pandemic has been suggested, because it is the molecular receptor for severe acute respiratory syndrome-coronavirus 2 (SARS-CoV2). ACE2 is known to provide a protective effect for cardiac and vascular tissues, because it generally counteracts angiotensin II (Ang II) activity. ACE2 downregulation has been implicated in the pathogenesis of cardiovascular disease. ACE inhibitors and angiotensin receptor blockers may enhance ACE2 mRNA expression and enzyme activity. However, this has not been demonstrated in lung tissue. In the lungs, Ang II induces vasoconstriction to prevent ventilation perfusion mismatch, while also increasing vascular permeability (which can precipitate pulmonary edema). ACE2 is expressed in 0.67% of human lung cells, 80% of which are type 2 alveolar cells. Men (of all ethnicities) and Asian individuals have been shown to express higher levels of ACE2 than women and non-Asian individuals, respectively. However, there are no data from human studies indicating that high ACE2 expression increases the likelihood of SARS-CoV2 infection. In animal studies, an increase in Ang II caused by SARS-CoV2 or spike protein interactions, in turn due to ACE2 downregulation, has been identified as the key mechanism underlying lung injury. In human studies of SARS-CoV2 infection, ACE2 overexpression was shown to cause inflammatory apoptosis and a cytokine storm. The actions of ACE2 and Ang II in SARS-CoV2-infected vascular and lung tissues differ between animals and humans. ACE2 expression levels pre- and post-SARS-CoV2 infection should be differentiated.
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Purpose@#We investigated the changes in ocular deviation after the monocular occlusion test in adults with intermittent exotropia and evaluated its association with the level of control. @*Methods@#We retrospectively enrolled adults (aged ≥18 years) with intermittent exotropia who visited our clinic between September 2015 and May 2019. Patients with basic intermittent exotropia with a distant deviation within 10 prism diopters (PD) of the near deviation were included. The largest ocular deviations obtained before and after 1 hour of monocular occlusion were compared. The level of control was measured using the LACTOSE (Look and Cover, then Ten seconds of Observation Scale for Exotropia) control scoring system. @*Results@#Forty-six consecutive adult patients (28 males, 18 females; mean age, 34.3 years) were enrolled. The mean ocular deviation was 36.3 PD (range, 18 to 5 PD) at distant fixation and 38.5 PD (range, 18 to 80 PD) at near fixation, which increased significantly to 38.5 PD (p = 0.043) and 41.1 PD (p = 0.011), respectively, after monocular occlusion. The mean ocular deviation increased ≥5 PD in 14 (30.4%) and 15 (32.6%) patients at distant and near fixation, respectively. The level of control was measured in 30 patients. A higher degree of near control was significantly associated with an increase of ≥5 PD in near fixation after the test (p = 0.009 for a near control score ≤2). @*Conclusions@#The monocular occlusion test may help to determine the largest ocular deviation in adults with intermittent exotropia. Approximately one-third of patients exhibited an increase in ocular deviation ≥5 PD. Patients exhibiting good control were more likely to manifest an increase in the ocular deviation.
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Purpose@#We investigated the changes in ocular deviation after the monocular occlusion test in adults with intermittent exotropia and evaluated its association with the level of control. @*Methods@#We retrospectively enrolled adults (aged ≥18 years) with intermittent exotropia who visited our clinic between September 2015 and May 2019. Patients with basic intermittent exotropia with a distant deviation within 10 prism diopters (PD) of the near deviation were included. The largest ocular deviations obtained before and after 1 hour of monocular occlusion were compared. The level of control was measured using the LACTOSE (Look and Cover, then Ten seconds of Observation Scale for Exotropia) control scoring system. @*Results@#Forty-six consecutive adult patients (28 males, 18 females; mean age, 34.3 years) were enrolled. The mean ocular deviation was 36.3 PD (range, 18 to 5 PD) at distant fixation and 38.5 PD (range, 18 to 80 PD) at near fixation, which increased significantly to 38.5 PD (p = 0.043) and 41.1 PD (p = 0.011), respectively, after monocular occlusion. The mean ocular deviation increased ≥5 PD in 14 (30.4%) and 15 (32.6%) patients at distant and near fixation, respectively. The level of control was measured in 30 patients. A higher degree of near control was significantly associated with an increase of ≥5 PD in near fixation after the test (p = 0.009 for a near control score ≤2). @*Conclusions@#The monocular occlusion test may help to determine the largest ocular deviation in adults with intermittent exotropia. Approximately one-third of patients exhibited an increase in ocular deviation ≥5 PD. Patients exhibiting good control were more likely to manifest an increase in the ocular deviation.
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Leaving behind substantial reflections or skepticisms on the shortage of evidences about blood pressure (BP) thresholds for antihypertensive drug therapy and target BPs, major hypertensive guidelines including Korean hypertension guidelines were recently updated for earlier and more intensive control of BP. Because hypertension is one of the major risk factors for death, stroke, cardiovascular (CV) disease, heart failure, and cognitive impairment, substantial improvement of hypertension management is necessary to reduce disease and socioeconomic burdens and to promote CV health. Theoretically, earlier intervention in terms of age and BP level and thorough control of BP into within normal range would prevent or delay major adverse CV events. Revised hypertension guidelines were developed by the American College of Cardiology/American Heart Association, Korean Society of Hypertension, European Society of Cardiology/European Society of Hypertension, and Japanese Society of Hypertension in order. In this article, recent updates and clinical significances of the Korean hypertension guidelines will be discussed with comparison of foreign hypertension guidelines and considerable changes in the management of hypertension will be introduced for cardiologists and general practitioners.
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BACKGROUND/AIMS: We investigated the risk of multidrug-resistant, gram-negative bacteria (MDRGNB) in hospitalized elderly patients from non-hospital long-term care facilities (LTCFs) and the antibiotic prescription pattern. METHODS: All clinical cultures obtained within 48 hours of hospitalization from elderly patients of at least 55 years of age arriving at a 623-bed, public teaching hospital in Seoul, Republic of Korea from LTCFs between April 1, 2011 and April 1, 2012 were collected retrospectively. RESULTS: During this period, 365 elderly persons from 13 LTCFs were hospitalized. This study enrolled 135 patients who had cultures performed. In this group, 27.4% harbored MDRGNB at hospitalization. The presence of MDRGNB during prior hospitalization was the only risk factor that predicted harboring it (p = 0.043, odds ratio = 5.00, confidence interval = 1.049-23.834). Combinations of antibiotics or carbapenems were used initially in 35.6% of the patients, and this did not affect the mortality rate in this population. CONCLUSIONS: Hospitalized elderly patients from non-hospital LTCFs need more attention. Judicious antibiotic selection is needed according to the risk factor of harboring MDRGNB for antibiotics stewardship.
Тема - темы
Aged , Humans , Anti-Bacterial Agents , Carbapenems , Drug Resistance, Multiple, Bacterial , Gram-Negative Bacteria , Hospitalization , Hospitals, Teaching , Long-Term Care , Mortality , Odds Ratio , Prescriptions , Republic of Korea , Retrospective Studies , Risk Factors , SeoulРеферат
BACKGROUND/AIMS@#We investigated the risk of multidrug-resistant, gram-negative bacteria (MDRGNB) in hospitalized elderly patients from non-hospital long-term care facilities (LTCFs) and the antibiotic prescription pattern.@*METHODS@#All clinical cultures obtained within 48 hours of hospitalization from elderly patients of at least 55 years of age arriving at a 623-bed, public teaching hospital in Seoul, Republic of Korea from LTCFs between April 1, 2011 and April 1, 2012 were collected retrospectively.@*RESULTS@#During this period, 365 elderly persons from 13 LTCFs were hospitalized. This study enrolled 135 patients who had cultures performed. In this group, 27.4% harbored MDRGNB at hospitalization. The presence of MDRGNB during prior hospitalization was the only risk factor that predicted harboring it (p = 0.043, odds ratio = 5.00, confidence interval = 1.049-23.834). Combinations of antibiotics or carbapenems were used initially in 35.6% of the patients, and this did not affect the mortality rate in this population.@*CONCLUSIONS@#Hospitalized elderly patients from non-hospital LTCFs need more attention. Judicious antibiotic selection is needed according to the risk factor of harboring MDRGNB for antibiotics stewardship.
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BACKGROUND: Fabry disease is an X-linked recessive disorder caused by deficiency of the lysosomal enzyme α-galactosidase A (α-Gal A). Previous studies identified many cases of Fabry disease among men with left ventricular hypertrophy (LVH). The purpose of this study was to define the frequency of Fabry disease among Korean men with LVH. METHODS: In this national prospective multicenter study, we screened Fabry disease in men with LVH on echocardiography. The criterion for LVH diagnosis was a maximum LV wall thickness 13 mm or greater. We screened 988 men with LVH for plasma α-Gal A activity. In patients with low α-Gal A activity (< 3 nmol/hr/mL), we searched for mutations in the α-galactosidase gene. RESULTS: In seven men, α-Gal A activity was low. Three had previously identified mutations; Gly328Arg, Arg301Gln, and His46Arg. Two unrelated men had the E66Q variant associated with functional polymorphism. In two patients, we did not detect GLA mutations, although α-Gal A activity was low on repeated assessment. CONCLUSION: We identified three patients (0.3%) with Fabry disease among unselected Korean men with LVH. Although the prevalence of Fabry disease was low in our study, early treatment of Fabry disease can result in a good prognosis. Therefore, in men with unexplained LVH, differential diagnosis of Fabry disease should be considered.
Тема - темы
Humans , Male , Diagnosis , Diagnosis, Differential , Echocardiography , Fabry Disease , Hypertrophy, Left Ventricular , Plasma , Prevalence , Prognosis , Prospective StudiesРеферат
No abstract available.
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Background@#Influenza vaccination is a key public health intervention for pandemic influenza as it can limit the burden of disease, especially in high-risk groups, minimize social disruption and reduce economic impact.1 In the event of an influenza pandemic, large-scale production, distribution and administration of pandemic vaccines in the shortest time possible is required. In addition, monitoring vaccine effectiveness, coverage and adverse events following immunization (AEFI) is important. Since seasonal influenza vaccination programmes require annual planning in each of these areas, establishing and strengthening annual influenza programmes will contribute to pandemic preparedness.2 This paper presents efforts made in the World Health Organization (WHO) Western Pacific Region to improve seasonal influenza vaccination and pandemic preparedness.