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1.
Article in English | WPRIM | ID: wpr-874684

ABSTRACT

Background@#and Purpose Mutations in the ganglioside-induced differentiation-associated protein 1 gene (GDAP1) are known to cause Charcot-Marie-Tooth disease (CMT). These mutations are very rare in most countries, but not in certain Mediterranean countries. The purpose of this study was to identify the clinical and neuroimaging characteristics of Korean CMT patients with GDAP1 mutations. @*Methods@#Gene sequencing was applied to 1,143 families in whom CMT had been diagnosed from 2005 to 2020. PMP22 duplication was found in 344 families, and whole-exome sequencing was performed in 699 patients. Magnetic resonance imaging (MRI) were obtained using either a 1.5-T or 3.0-T MRI system. @*Results@#We found ten patients from eight families with GDAP1 mutations: five with autosomal dominant (AD) CMT type 2K (three families with p.R120W and two families with p.Q218E) and three with autosomal recessive (AR) intermediate CMT type A (two families with homozygous p.H256R and one family with p.P111H and p.V219G mutations). The frequency was about 1.0% exclusive of the PMP22 duplication, which is similar to that in other Asian countries. There were clinical differences among AD GDAP1 patients according to mutation sites. Surprisingly, fat infiltrations evident in lower-limb MRI differed between AD and AR patients. The posterior-compartment muscles in the calf were affected early and predominantly in AD patients, whereas AR patients showed fat infiltration predominantly in the anterolateral-compartment muscles. @*Conclusions@#This is the first cohort report on Korean patients with GDAP1 mutations. The patients with AD and AR inheritance routes exhibited different clinical and neuroimaging features in the lower extremities. We believe that these results will help to expand the knowledge of the clinical, genetic, and neuroimaging features of CMT.

2.
Ultrasonography ; : 376-383, 2020.
Article | WPRIM | ID: wpr-835349

ABSTRACT

Purpose@#Excision of metastatic lesions is an important treatment strategy in patients with malignant melanoma, both at the initial diagnosis and upon recurrence. Since nonpalpable lesions cannot be easily visualized in the surgical field, we evaluated the effectiveness of ultrasound (US)-guided tattooing using a charcoal suspension for the localization of nonpalpable metastatic lesions of malignant melanoma. @*Methods@#Between November 2009 and June 2019, we retrospectively reviewed 65 nonpalpable lesions in 29 patients with malignant melanoma who underwent preoperative US-guided tattooing using a charcoal suspension for histologically confirmed or suspected metastases. The characteristics of the tattooed lesions were analyzed. The effectiveness of the procedure was evaluated based on the detection rate in the surgical field and the presence or absence of residua on postoperative follow-up US. Procedure-related complications were also analyzed. @*Results@#Of 65 lesions, 33 (50.8%) were histologically confirmed as metastases before the tattooing procedure, while the other 32 were suspected of being metastases based on imaging studies. The mean lesion size was 9.8 mm (range, 1.3 to 24.4 mm). The final pathology revealed metastases in 59 lesions (90.8%), including lymph node (n=51), muscle (n=5), and in-transit (n=3) metastases. Sixty-one lesions (93.8%) were successfully detected intraoperatively and removed without residua on follow-up US. Four residual lesions were removed after repeated localization (n=2) or by intraoperative US (n=2). No relevant complications were noted. @*Conclusion@#Preoperative US-guided tattooing localization can safely and effectively delineate nonpalpable metastatic melanoma lesions to aid in successful surgical excision.

3.
Article in English | WPRIM | ID: wpr-741412

ABSTRACT

OBJECTIVE: To evaluate the efficacy of the morphologic-metabolic (M-M) dissociation sign based on computed tomography (CT) and fluorine-18-fluorodeoxyglucose positron emission tomography (PET)/CT in discriminating invasive mucinous adenocarcinoma (IMA) from invasive non-mucinous adenocarcinomas (ADCs) of the lung. MATERIALS AND METHODS: The Institutional Review Board approved this retrospective study. Among surgically resected solitary pulmonary nodule (SPN)-type ADCs (< 3 cm in diameter), 35 patients with IMAs and 329 with invasive non-mucinous ADCs were included. Morphologic malignancy was established if the tumor with lobulated or spiculated margin on CT presented a tumor shadow disappearance rate of < 0.5. The M-M dissociation sign was determined when a malignant-morphologic nodule on CT showed maximum standardized uptake value (SUVmax) < 3.5 on PET/CT. RESULTS: Among 35 IMAs (size: 21 ± 7 mm, SUVmax: 1.8 ± 2.0) and 329 invasive non-mucinous ADCs (size: 21 ± 6 mm, SUVmax: 4.6 ± 4.2), the M-M dissociation sign was observed in 54% of IMAs (19/35) and 10% of invasive non-mucinous ADCs (34/329) (p < 0.001). The diagnostic performance of the sign in discriminating IMA from invasive non-mucinous ADCs showed a sensitivity of 54.3% (95% confidence interval [CI], 36.7–71.2), specificity 89.7% (95% CI, 85.9–92.7), positive predictive value 35.8% (95% CI, 26.5–46.5), and negative predictive value 94.9% (95% CI, 92.8–96.4). Multivariate analyses revealed metabolic benignity (odds ratio [OR] 2.99; 95% CI, 1.01–8.93; p = 0.047) and M-M dissociation sign (OR 6.35; 95% CI, 2.76–14.62; p < 0.001) to be significant predictors of SPN-type IMAs. CONCLUSION: Identification of the absence of M-M dissociation sign is an accurate indicator for excluding IMA from SPN-type lung ADCs.


Subject(s)
Adenocarcinoma , Adenocarcinoma, Mucinous , Diagnosis , Ethics Committees, Research , Fluorodeoxyglucose F18 , Humans , Lung , Mucins , Multivariate Analysis , Positron-Emission Tomography , Positron Emission Tomography Computed Tomography , Retrospective Studies , Sensitivity and Specificity , Solitary Pulmonary Nodule
4.
Gut and Liver ; : 463-470, 2018.
Article in English | WPRIM | ID: wpr-715585

ABSTRACT

BACKGROUND/AIMS: In suspected malignant biliary strictures (MBSs), the diagnostic yield of endoscopic retrograde cholangiopancreatography (ERCP)-based tissue sampling is limited. Transpapillary forceps biopsy (TPB) under intraductal ultrasonography (IDUS) guidance is expected to improve the diagnostic accuracy in patients with indeterminate biliary strictures. We evaluated the usefulness of IDUS-guided TPB in patients with suspected MBS. METHODS: Consecutive patients with suspected MBS were prospectively enrolled in the study. ERCP with IDUS was performed in all patients. Both conventional TPB and IDUS-guided TPB on fluoroscopy were performed in each patient. The primary outcome was the diagnostic accuracy of conventional TPB and IDUS-guided TPB. RESULTS: The technical success rate of IDUS-guided TPB was 97.0% (65/67 patients). Of these 65 patients, the final diagnosis was malignancy in 61 patients (93.8%). On IDUS, the most common finding of IDUS was an intraductal infiltrating lesion in 29 patients (47.5%). The overall diagnostic accuracy was significantly higher using IDUS-guided TPB than that using conventional TPB (90.8% vs 76.9%, p=0.027). According to the subgroup analysis based on the tumor morphology, IDUS-guided TPB had a significantly higher cancer detection rate than conventional TPB for intraductal infiltrating lesions (89.6% vs 65.5%, p=0.028). CONCLUSIONS: IDUS-guided TPB appears to improve the accuracy of histological diagnosis in patients with MBS.


Subject(s)
Biopsy , Cholangiopancreatography, Endoscopic Retrograde , Constriction, Pathologic , Diagnosis , Fluoroscopy , Humans , Prospective Studies , Surgical Instruments , Ultrasonography
5.
Health Communication ; (2): 125-132, 2018.
Article in Korean | WPRIM | ID: wpr-788091

ABSTRACT

PURPOSE: The aim of this study is to investigate the quality of basic life support (BLS) information for primary Korean-speaking individuals on the internet.METHODS: Using the Google © search engine, we searched for the terms ‘CPR’, ‘cardiopulmonary resuscitation (in Korean)’ and ‘cardiac arrest (in Korean)’. The accuracy, reliability and accessibility of web pages was evaluated based on the 2015 American heart association(AHA) guidelines for CPR & emergency cardiovascular care, the health on the net foundation code of conduct and Korean web content accessibility guidelines 2.1, respectively.RESULTS: Of the 178 web pages screened, 50 met criteria for inclusion. The overall quality of BLS information was not enough (median 5/7, IQR 4.75-6). 23(36%) pages were created in accordance with 2010 AHA guidelines. Only 24(48%) web pages educated on how to use the automated electrical defibrillator. The attribution and transparency of the reliability of pages was relatively low, 20(40%) and 16(32%). The web accessibility score was relatively high.CONCLUSION: A small of proportion of internet web pages searched by Google have high quality BLS information for a Korean-speaking population. Web pages based on past guideline were still being searched. The notation of the source of CPR information and the transparency of the author should be improved. The verification and evaluation of the quality of BLS information exposed to the Internet are continuously needed.


Subject(s)
Cardiopulmonary Resuscitation , Defibrillators , Education , Emergencies , Heart , Heart Arrest , Internet , Resuscitation , Search Engine
6.
Article in Korean | WPRIM | ID: wpr-758428

ABSTRACT

PURPOSE: Kawasaki disease (KD) is an acute, self-limited, febrile disease. For cases of KD in which the first symptom is cervical lymphadenopathy (node-first presentations of KD, NFKD), it is frequently misdiagnosed as bacterial cervical lymphadenitis (BCL). Therefore, we evaluated the usefulness of N-terminal pro-brain natriuretic peptide (NT-proBNP) to differentiate between NFKD and BCL. METHODS: This is a retrospective, observational study. Patients were divided into three groups, KD as 1st diagnosis, NFKD, and BCL. The laboratory and demographic data, intravenous immunoglobulin (IVIG) administration time and total febrile duration, length of hospital stay, and number of coronary artery complications were then compared for each group. RESULTS: A total of 451 patients were diagnosed as KD and 45 patients as BCL. Of the 451 KD patients, 417 (92.5%) were KD as 1st diagnosis, and 34 (7.5%) were NFKD. White blood cell count, absolute neutrophil count, C-reactive protein, erythrocyte sedimentation rate, and NT-proBNP differed significantly between NFKD and BCL. Variables that differed significantly were analyzed using a receiver operating characteristic curve, which revealed that NT-proBNP had the largest area under curve (0.944). Additionally, IVIG administration time, total febrile duration and length of hospital stay differed between KD as 1st diagnosis and NFKD. CONCLUSION: It is difficult to differentiate NFKD from BCL, so proper treatment and length of hospital stay were delayed. NT-proBNP is very useful for differentiating NFKD and BCL. Therefore, in cases of BCL with a long febrile period without reacting general treatments, the NT-proBNP test can be considered.


Subject(s)
Area Under Curve , Blood Sedimentation , C-Reactive Protein , Coronary Vessels , Diagnosis , Humans , Immunoglobulins , Immunoglobulins, Intravenous , Length of Stay , Leukocyte Count , Lymphadenitis , Lymphatic Diseases , Mucocutaneous Lymph Node Syndrome , Neutrophils , Observational Study , Retrospective Studies , ROC Curve
7.
Article in Korean | WPRIM | ID: wpr-53380

ABSTRACT

PURPOSE: Diabetic ketoacidosis (DKA) is a fatal complication caused by unregulated diabetes. Lactate is used as a prognostic indicator for a range of serious illnesses and its level is higher in DKA patients. This study examined the utility of lactate and lactate clearance measurements at an emergency department for predicting the prognosis of DKA patients. METHODS: This was a retrospective, observational study of patients with DKA presenting to the emergency department of an urban and rural tertiary hospital between January, 2013 and December, 2016. The demographic and laboratory data were collected through a chart review. RESULTS: Seventy-six patients with DKA were included. Of these 76 patients, 46 (56.8%) had lactic acidosis (lactate >2.5 mmol/L) and 24 (29.6%) had a high lactate level (>4 mmol/L). Lactate and lactate clearance showed a significant difference in terms of the intensive care unit length of stay and mortality. CONCLUSION: Lactate and lactate clearance measurements in DKA patients are favorable and significant prognostic factors. In DKA patients, serial measurements of lactate should be considered.


Subject(s)
Acidosis, Lactic , Diabetic Ketoacidosis , Emergencies , Emergency Service, Hospital , Humans , Intensive Care Units , Lactic Acid , Length of Stay , Mortality , Observational Study , Prognosis , Retrospective Studies , Tertiary Care Centers
8.
Article in English | WPRIM | ID: wpr-111253

ABSTRACT

BACKGROUND: The mesenchymal-epithelial transition factor (MET) receptor can be overexpressed in solid tumors, including small cell lung cancer (SCLC). However, the molecular mechanism regulating MET stability and turnover in SCLC remains undefined. One potential mechanism of MET regulation involves the C-terminus of Hsp70-interacting protein (CHIP), which targets heat shock protein 90-interacting proteins for ubiquitination and proteasomal degradation. In the present study, we investigated the functional effects of CHIP expression on MET regulation and the control of SCLC cell apoptosis and invasion. METHODS: To evaluate the expression of CHIP and c-Met, which is a protein that in humans is encoded by the MET gene (the MET proto-oncogene), we examined the expression pattern of c-Met and CHIP in SCLC cell lines by western blotting. To investigate whether CHIP overexpression reduced cell proliferation and invasive activity in SCLC cell lines, we transfected cells with CHIP and performed a cell viability assay and cellular apoptosis assays. RESULTS: We found an inverse relationship between the expression of CHIP and MET in SCLC cell lines (n=5). CHIP destabilized the endogenous MET receptor in SCLC cell lines, indicating an essential role for CHIP in the regulation of MET degradation. In addition, CHIP inhibited MET-dependent pathways, and invasion, cell growth, and apoptosis were reduced by CHIP overexpression in SCLC cell lines. CONCLUSION: CHIP is capable of regulating SCLC cell apoptosis and invasion by inhibiting MET-mediated cytoskeletal and cell survival pathways in NCI-H69 cells. CHIP suppresses MET-dependent signaling, and regulates MET-mediated SCLC motility.


Subject(s)
Apoptosis , Blotting, Western , Cell Line , Cell Proliferation , Cell Survival , Heat-Shock Proteins , Humans , Lung Neoplasms , Small Cell Lung Carcinoma , Ubiquitin , Ubiquitination
9.
Kosin Medical Journal ; : 179-190, 2017.
Article in English | WPRIM | ID: wpr-101351

ABSTRACT

OBJECTIVES: Blood pressure variation (BPV) and metabolic syndrome is an independent risk factor for cardiovascular events. Ambulatory blood Pressure (ABP) has been shown to be more closely related to cardiovascular events in hypertensive patients than conventional office BP (OBP). Using both OBP and ABP, 4 groups of patients were identified: (1) normotensive patients (NT); (2) white coat hypertensives (WCHT); (3) masked hypertensives (MHT); and (4) sustainedhypertensives (SHT). We investigated the significance of BPV and metabolic risks of these 4 groups. METHODS: This study is a retrospective analysis of patients between January 2008 and May 2013. Echocardiography and 24 hour ABP monitoring were performed. RESULTS: BMI was significantly higher in the MHT compared with the NT. There were progressive increases in fasting glucose level from NT to WCHT, MHT, and SHT.MHT and SHT had higher 24h and nighttime BPV than NT.MHT was significantly related with BMI (r = 0.139, P = 0.010), creatinine (r = 0.144, P = 0.018), fasting glucose (r = 0.128, P = 0.046), daytime systolic BPV (r = 0.130, P = 0.017), and daytime diastolic BPV (r = 0.130, P = 0.017). Dyslipidemia (r = 0.110, P = 0.043), nighttime systolic BPV (r = 0.241, P < 0.001) and nighttime diastolic BPV (r = 0.143, P = 0.009) shown correlation with SHT. In multivariate logistic regression, MHT was independently associated with Body mass index (OR 1.086, 95% CI 1.005–1.174, P = 0.038) and creatinine (OR 1.005, 95% CI 1.001–1.010, P = 0.045). CONCLUSIONS: BPV and metabolic risk factors were found to be greater in MHT and SHT compared with NT and WCHT. This suggests that BPV and metabolic risks may contribute to the elevated cardiovascular risk observed in patients with MHT and SHT.


Subject(s)
Blood Pressure , Body Mass Index , Creatinine , Dyslipidemias , Echocardiography , Fasting , Glucose , Humans , Hypertension , Logistic Models , Masked Hypertension , Masks , Retrospective Studies , Risk Factors , White Coat Hypertension
10.
Article in English | WPRIM | ID: wpr-80175

ABSTRACT

BACKGROUND: In this study, we aimed to investigate the relationship between echocardiographic epicardial fat thickness (EFT), neutrophil to lymphocyte ratio (NLR; an important inflammatory marker), and diurnal blood pressure (BP) changes in patients with recently diagnosed essential hypertension. METHODS: A total of 647 patients underwent echocardiography and 24 hours of ambulatory BP monitoring. EFT was measured by echocardiography, while NLR was measured by dividing the neutrophil count by the lymphocyte count. Patients were categorized into three groups according to BP pattern: the normotensive group, the dipper group, and the non-dipper group. RESULTS: The mean EFT was highest in the non-dipper group (non-dipper group, 7.3 ± 3.0 mm; dipper group, 6.1 ± 2.0 mm; control group, 5.6 ± 2.0 mm; p < 0.001). NLR was also highest in the non-dipper group (non-dipper, 2.75 ± 2.81; dipper, 2.01 ± 1.32; control, 1.92 ± 1.11; p < 0.001). EFT was significantly correlated with age (r = 0.160, p < 0.001) and NLR (r = 0.353, p < 0.001). Furthermore, an EFT ≥ 7.0 mm was associated with the non-dipper BP pattern with 51.3% sensitivity and 71.6% specificity [95% confidence interval (CI) = 0.56–0.65, p < 0.001]. In a multivariate analysis, EFT [adjusted odds ratio (OR) = 3.99, 95% CI = 1.22–13.10, p = 0.022] and NLR (OR = 1.34, 95% CI = 1.05–1.71, p = 0.018) were independent parameters that distinguished a non-dipper pattern after adjustment for cardiovascular risk factors. CONCLUSION: EFT and NLR are independently associated with impaired diurnal BP profiles in hypertensive individuals. EFT (as measured by echocardiography) and NLR appear to be helpful in stratifying cardiometabolic risk.


Subject(s)
Blood Pressure , Echocardiography , Humans , Hypertension , Lymphocyte Count , Lymphocytes , Multivariate Analysis , Neutrophils , Odds Ratio , Risk Factors , Sensitivity and Specificity
11.
Article in English | WPRIM | ID: wpr-38028

ABSTRACT

Enamel microabrasion has become accepted as a conservative, nonrestorative method of removing intrinsic and superficial dysmineralization defects from dental fluorosis, restoring esthetics with minimal loss of enamel. However, it can be difficult to determine if restoration is necessary in dental fluorosis, because the lesion depth is often not easily recognized. This case report presents a method for analysis of enamel hypoplasia that uses quantitative light-induced fluorescence (QLF) followed by a combination of enamel microabrasion with carbamide peroxide home bleaching. We describe the utility of QLF when selecting a conservative treatment plan and confirming treatment efficacy. In this case, the treatment plan was based on QLF analysis, and the selected combination treatment of microabrasion and bleaching had good results.


Subject(s)
Dental Enamel Hypoplasia , Dental Enamel , Enamel Microabrasion , Esthetics , Fluorescence , Fluorosis, Dental , Methods , Treatment Outcome , Urea
12.
Article in English | WPRIM | ID: wpr-44153

ABSTRACT

OBJECTIVE: The purpose of our study was to evaluate the overall prevalence and clinical significance of interposition of the posterior cruciate ligament (PCL) into the medial compartment of the knee joint in coronal magnetic resonance imaging (MRI). MATERIALS AND METHODS: We retrospectively reviewed 317 consecutive patients referred for knee MRI at our institution between October 2009 and December 2009. Interposition of the PCL into the medial compartment of the knee joint on proton coronal MRI was evaluated dichotomously (i.e., present or absent). We analyzed the interposition according to its prevalence as well as its relationship with right-left sidedness, gender, age, and disease categories (osteoarthritis, anterior cruciate ligament tear, and medial meniscus tear). RESULTS: Prevalence of interposition of PCL into the medial compartment of the knee joint was 47.0% (149/317). There was no right (50.0%, 83/166) to left (43.7%, 66/151) or male (50.3%, 87/173) to female (43.1%, 62/144) differences in the prevalence. There was no significant association between the prevalence and age, or the disease categories. CONCLUSION: Interposition of the PCL into the medial compartment of the knee joint is observed in almost half of patients on proton coronal MRI of the knee. Its presence is not associated with any particular factors including knee pathology and may be regarded as a normal MR finding.


Subject(s)
Adolescent , Adult , Aged , Child , Female , Humans , Image Processing, Computer-Assisted , Knee Joint/diagnostic imaging , Magnetic Resonance Imaging , Male , Menisci, Tibial/diagnostic imaging , Middle Aged , Osteoarthritis/diagnosis , Posterior Cruciate Ligament/diagnostic imaging , Prevalence , Retrospective Studies , Young Adult
13.
Article in English | WPRIM | ID: wpr-11231

ABSTRACT

BACKGROUND: Neutrophil-to-lymphocyte ratio (NLR) has recently emerged as a new important inflammatory marker for predicting cardiovascular events. This study aimed to evaluate the combined impact of NLR and type 2 diabetes mellitus (T2DM) on significant coronary artery disease (CAD) and carotid artery atherosclerosis. METHODS: This study includes a total of 828 patients evaluated by coronary angiography and carotid ultrasonography. Significant CAD was defined as at least one vessel with stenosis greater than 50%. We employed logistic regression models to investigate the association of NLR and T2DM with significant CAD. The goodness-of-fit and discriminability of the models were assessed by the loglikelihood ratio test and C-index, respectively. Also, we investigated the clinical relevance of the categorized NLR that classifies patients into three risk groups (low, intermediate, high). RESULTS: According to logistic regression analysis, both NLR {adjusted odds ratio (OR) 1.31, p 2) showed the greater prevalence of significant CAD and carotid artery atherosclerosis compared with patients without T2DM or type 2 diabetic patients assigned into the low risk group (NLR ≤ 1). CONCLUSION: Our results suggest that type 2 diabetic patients with high inflammatory state would be more vulnerable to significant CAD and carotid artery atherosclerosis.


Subject(s)
Atherosclerosis , Carotid Arteries , Constriction, Pathologic , Coronary Angiography , Coronary Artery Disease , Coronary Vessels , Diabetes Mellitus , Diabetes Mellitus, Type 2 , Humans , Logistic Models , Odds Ratio , Prevalence , Risk Factors , Ultrasonography
14.
Article in English | WPRIM | ID: wpr-25154

ABSTRACT

An 81-year-old male patient presented with complaint of a pulsating neck mass. The patient had a previous history of cervical lymphadenopathy by non-tuberculous mycobacterium infection. Rapid growth of the mass on admission and contrast enhanced computed tomography of the neck resulted in a diagnosis of non-tuberculous mycobacterium induced pseudoaneurysm. The patient underwent emergency open repair of the pseudoaneurysm. Pseudoaneurysm of the common carotid artery is regularly reported, but here we report a rare case of non-tuberculous mycobacterium induced pseudoaneurysm of the common carotid artery.


Subject(s)
Aged, 80 and over , Aneurysm, False , Carotid Arteries , Carotid Artery, Common , Diagnosis , Emergencies , Humans , Lymphatic Diseases , Male , Mycobacterium Infections , Mycobacterium , Neck , Nontuberculous Mycobacteria , Vascular Diseases
15.
Article in English | WPRIM | ID: wpr-183076

ABSTRACT

The role of atypical bacteria and the effect of antibiotic treatments in acute bronchitis are still not clear. This study was conducted at 22 hospitals (17 primary care clinics and 5 university hospitals) in Korea. Outpatients (aged > or = 18 yr) who had an acute illness with a new cough and sputum (< or = 30 days) were enrolled in 2013. Multiplex real-time polymerase chain reaction (RT-PCR) was used to detect five atypical bacteria. A total of 435 patients were diagnosed as having acute bronchitis (vs. probable pneumonia, n = 75), and 1.8% (n = 8) were positive for atypical pathogens (Bordetella pertussis, n = 3; B. parapertussis, n = 0; Mycoplasma pneumoniae, n = 1; Chlamydophila pneumoniae, n = 3; Legionella pneumophila, n = 1). Among clinical symptoms and signs, only post-tussive vomiting was more frequent in patients with atypical pathogens than those without (P = 0.024). In all, 72.2% of the enrolled patients received antibiotic treatment at their first visits, and beta-lactams (29.4%) and quinolones (20.5%) were the most commonly prescribed agents. In conclusion, our study demonstrates that the incidence of atypical pathogens is low in patients with acute bronchitis, and the rate of antibiotic prescriptions is high.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Bordetella parapertussis/genetics , Bordetella pertussis/genetics , Bronchitis/drug therapy , Chlamydophila pneumoniae/genetics , Community-Acquired Infections/microbiology , Female , Humans , Hypertension/complications , Legionella pneumophila/genetics , Male , Middle Aged , Mycoplasma pneumoniae/genetics , Real-Time Polymerase Chain Reaction , Republic of Korea , Sputum/microbiology
16.
Korean Circulation Journal ; : 125-130, 2015.
Article in English | WPRIM | ID: wpr-154882

ABSTRACT

BACKGROUND AND OBJECTIVES: Subclinical hypothyroidism is associated with endothelial dysfunction and impaired coronary flow reserve. However, the effect of subclinical hypothyroidism or thyroid autoimmunity on variant angina has yet to be determined. SUBJECTS AND METHODS: Among 385 consecutive patients without associated cardiovascular risk factors who underwent coronary angiography with the ergonovine provocation test (EPT), 165 had a positive EPT {EPT(+)} and 220 had a negative EPT {EPT(-)}. The relationship between coronary artery spasm and the presence of subclinical thyroid dysfunction as well as serum thyroid peroxidase autoantibody (TPO Ab) was evaluated. RESULTS: The proportion of patients with subclinical hypothyroidism among those who were EPT(+) was significantly higher than that in those who were EPT(-) (18% vs. 11%, p=0.001). However, there was no significant difference in the proportion of patients with subclinical hyperthyroidism between the groups. Moreover, EPT(+) patients showed significantly more positive TPO Ab (33% vs. 14%, p<0.001) than those with EPT(-). There was a positive correlation between EPT(+) and TPO positivity (r=0.226, p<0.001), subclinical hypothyroidism (r=0.112, p=0.033), and body mass index (r=0.123, p=0.018). Binary logistic regression analysis revealed that the significant predictors of EPT(+) were body mass index {adjusted odds ratio (OR)=1.042, 95% confidence interval (CI)=1.005-1.080}, presence of subclinical hypothyroidism (OR=3.047, 95% CI=1.083-8.572), TPO Ab titer (OR=1.028, 95% CI=1.015-1.041), and the presence of TPO Ab (OR=4.904, 95% CI=1.544-15.567). CONCLUSION: Subclinical hypothyroidism and the presence of TPO Ab are significantly associated with coronary vasospasm in patients without cardiovascular risk factors.


Subject(s)
Autoimmunity , Body Mass Index , Coronary Angiography , Coronary Vasospasm , Coronary Vessels , Ergonovine , Humans , Hyperthyroidism , Hypothyroidism , Iodide Peroxidase , Logistic Models , Odds Ratio , Risk Factors , Spasm , Thyroid Gland
17.
Article in English | WPRIM | ID: wpr-95466

ABSTRACT

Anticoagulation therapy is essential after cardiac valve surgery. However, spontaneous bleeding remains a major concern during anticoagulation therapy. Spontaneous gallbladder (GB) hemorrhage (hemobilia) is a rare occurrence during standard anticoagulation therapy. This report presents a case of GB hemorrhage that occurred shortly after initiating oral anticoagulant therapy in a patient who had undergone mitral valve replacement surgery.


Subject(s)
Anticoagulants , Gallbladder , Heart Valves , Hemobilia , Hemorrhage , Humans , Mitral Valve
18.
Article in English | WPRIM | ID: wpr-218652

ABSTRACT

Cardiac involvement in hypereosinophilia is rare; when present, it manifests as ventricular thickening, usually with fibrous tissue and mural thrombosis. We present a case of a 57-year-old man with an abnormal right ventricular apex with eosinophilia, which was caused by Toxocara canis infection.


Subject(s)
Echocardiography , Eosinophilia , Humans , Middle Aged , Thrombosis , Toxocara canis , Toxocariasis
19.
Article in Korean | WPRIM | ID: wpr-91999

ABSTRACT

OBJECTIVES: Dealing with mental diseases is an overriding concern which could bring about improvement in mental health, social equity, and quality of life. This paper analyzes the current state of research infrastructure of national mental health research in Korea and other developed countries and suggests activation plans for psychiatric research. METHODS: After performance of comparative analysis, shortcomings of Korean infrastructure are examined and activation plans are suggested. RESULTS: Korea is comparatively and absolutely lagging behind in terms of mental health Research and Development (R&D), owing to the small investment in R&D, inadequate government-led long-term developmental strategy and supporting system, absence of industrialization of developed techniques and government-led R&D project, and insufficient human resources, which impedes facilitation of mental health research. Thus, in order to facilitate mental health research, 1) Reinforce international cooperation and research capability through cultivation of professionals equipped with international competitiveness. 2) Construct a government-led R&D system by establishment of a comprehensive R&D system and mental health research institutes. 3) Build cooperative systems between industry and academic circles and promote translational research and its practical use in order to lay the cornerstone for industrialization. CONCLUSION: Developed countries have achieved significant growth and superb investment performance in the mental health industry due to constant and active investment by government. In addition, basic-clinical-mental health research regarding early diagnosis, early intervention, and tailored treatment, is actively being put into practice. In Korea, government-led long-term investment plans in psychiatric research and researcher cultivation programs should be implemented. In addition, infrastructure for application of developed techniques should also be established. If so, it will provide momentum for growth and facilitation of psychiatric research.


Subject(s)
Academies and Institutes , Developed Countries , Early Diagnosis , Early Intervention, Educational , Humans , International Cooperation , Investments , Korea , Mental Health , Quality of Life , Translational Research, Biomedical
20.
Article in English | WPRIM | ID: wpr-156571

ABSTRACT

BACKGROUND: Brother of the regulator of imprinted sites (BORIS) is a putative new oncogene that is classified as a cancer germline gene; however, its role in the development of cancer is unclear. This study investigated the expression of BORIS in lung cancer and its clinical implications. METHODS: The expression of BORIS messenger ribonucleic acid (mRNA) in the sputum of 100 patients with lung cancer (50 with squamous cell carcinoma, 36 with adenocarcinoma, and 14 with small-cell carcinoma) was evaluated by reverse transcription polymerase chain reaction. RESULTS: The overall expression rate of BORIS in patients with lung cancer was 36.0%: 19 of 50 squamous cell carcinomas (38.0%), 13 of 36 adenocarcinomas (36.1%), and 4 of 14 (28.6%) small-cell carcinomas. There was no significant difference in the BORIS expression according to age, gender, or histologic type. However, the mRNA expression of BORIS was significantly related to the pathologic cancer stage (p=0.004) and lymph node metastasis (p=0.001). The expression of the melanoma antigen gene family A1-6 was not associated with the expression of BORIS. CONCLUSION: Our results suggest that the expression of BORIS might be a negative prognostic factor in lung cancers and implicate BORIS as a molecular target for immunotherapy.


Subject(s)
Adenocarcinoma , Carcinoma, Squamous Cell , Humans , Immunotherapy , Lung Neoplasms , Lymph Nodes , Melanoma , Neoplasm Metastasis , Oncogenes , Polymerase Chain Reaction , Reverse Transcription , RNA , RNA, Messenger , Siblings , Sputum
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