• Journal of The Korean Society of Emergency Medicine
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• v.29 no.5
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• pp.437-448
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• 2018

Objective: Acute ischemic stroke (AIS) requires time-dependent reperfusion therapy, and early recognition of AIS is important to patient outcomes. This study was conducted to identify the clinical features and risk factors of AIS patients that are missed during the early stages of diagnosis. Methods: We retrospectively reviewed AIS patients admitted to a hospital through the emergency department. AIS patients were defined as ischemic stroke patients who visited the emergency department within 6 hours of symptom onset. Patients were classified into two groups: an activation group (A group), in which patients were identified as AIS and the stroke team was activated, and a non-activation group (NA group), for whom the stroke team was not activated. Results: The stroke team was activated for 213 of a total of 262 AIS patients (81.3%), while it was not activated for the remaining 49 (18.7%). The NA group was found to be younger, have lower initial National Institutes of Health Stroke Scale scores, lower incidence of previous hypertension, and a greater incidence of cerebellum and cardio-embolic infarcts than the A group. The chief complaints in the A group were traditional stroke symptoms, side weakness (61.0%), and speech disturbance (17.8%), whereas the NA group had non-traditional symptoms, dizziness (32.7%), and decreased levels of consciousness (22.4%). Independent factors associated with missed stroke team activation were nystagmus, nausea/vomiting, dizziness, gait disturbance, and general weakness. Conclusion: A high index of AIS suspicion is required to identify such patients with these findings. Education on focused neurological examinations and the development of clinical decision tools that could differentiate non-stroke and stroke are needed.

• Journal of Trauma and Injury
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• v.31 no.3
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• pp.166-173
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• 2018

Purpose: Many traumatic patients die from sepsis and multiple organ failure. Early recognition of post-traumatic sepsis in traumatic patients will help improve the prognosis. Recently, procalcitonin (PCT), macrophage migration inhibitory factor (MIF), and lactic acid have emerged as predictive factors. Our study aims to explore the significance of PCT, MIF and lactic acid as a predictor of posttraumatic-sepsis in trauma patients. Methods: This study was conducted on prospective observational study patients who visited an emergency medical center in a university hospital from March 2014 to February 2016. We measured the white blood cells, c-reactive protein (CRP), lactic acid, PCT, and MIF with serum taken from the patient's blood within 1 hour of the occurrence of the trauma. The definition of post-traumatic sepsis was defined as being part of systemic inflammation response syndrome criteria with infections within a week. Results: A total of 132 patients were analyzed, wherein 74 patients were included in the low injury severity score (ISS) group (ISS <15) and 58 patients were included in the high ISS group (ISS ${\geq}15$). The mean PCT, MIF, and lactic acid levels were higher in the high ISS group (p<0.05). Meanwhile, 38 patients were included in the early sepsis group and 94 patients were included in the non-sepsis group. The mean MIF levels were higher in the sepsis group than the non-sepsis group (p<0.05) and there were no significant differences in the initial CRP, lactic acid, and PCT levels in these two groups. Conclusions: MIF may be considered as a predictive factor for sepsis in trauma patients.

• Journal of Korean society of Dental Hygiene
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• v.18 no.6
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• pp.1013-1023
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• 2018

Objectives: The purpose of this study is to evaluate dental hygiene students' recognition of safety management and phantom practice in dental radiology. Methods: The study subjects were 409 students in six regions who completed a dental radiology practice course and had on-job experience more than once. After understanding the study purpose and contents, they answered a questionnaire. The main jobs in dental radiology were analyzed. Results: As a result, regarding the most difficult aspects of dental radiology practice, "it is impossible to irradiate the mouth directly with X-rays" was the most common response (29.1%). Regarding the question "what is the main role of students in dental radiology practice?", the answer "it is shooting simulations using phantoms" accounted for 59.7% of responses. The most difficult regions in bisecting and paralleling radiography with a phantom were found to be the maxillary & mandibular molars and premolars. The most difficult technique was reported to be locating XCP maintenance to fit inside the mouth for both molars and premolars. The most difficult region to perform bitewing radiography using the phantom was the molar region (2.87), and the most difficult to perform occlusal radiography approaches were maxillary anterior general occlusal radiography (2.92) and mandibular cross-sectional occlusal radiography (3.00). Conclusions: The most technically difficult point in bitewing and occlusal radiography was the correct positioning of the vertical and horizontal angles. Radiography practice was considered to be more effective than previous mutual practice in terms of analysis of anatomical structures and patient treatment methods. Therefore, it will be necessary to improve policy regarding dental radiography practice at the department of dental hygienics and revise the necessary laws and regulations.

• The Journal of Korean Medicine
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• v.40 no.2
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• pp.1-16
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• 2019

Objectives: The purpose of this study was to increase the utilization of Korean Medicine Clinical Practice Guidelines(KMCGP) for ankle sprain by investigating the recognition of guideline developed in 2015 and evaluating the current status of treatment. Methods: An e - mail questionnaire survey was conducted for Korean medicine doctor(K.M.D) registered in Korean Medicine Association. Survey data were analyzed through Excel. Results: The most common Korean medicine treatments used in clinic were acupuncture(adjacent points)(28.5%), cupping therapy(19.7%) and pharmacopuncture(9.8%). The treatments with high patient satisfaction were acupuncture (adjacent points)(27.9%), moxibustion(22.4%) and herbal medicine(10.4%). Herbal medicine(17.9%), tuina(10.7%) and embedding therapy(9.2%) were difficult to perform during treatment because of cost. In the case of a later revision, respondents most thought it is necessary to update evidence and adjust recommendation ratings. A majority of all respondents said they would like to know about the revised guideline through the Internet. In the expected revision effect, the first order was 'presentation of standardized treatment method', the second was 'establishing the basis of Korean medicine treatment', and the third was 'strengthening the status of Korean medicine as therapeutic medicine'. Many respondents wished to add exercise therapy. In order to increase the utilization rate of the guideline, many respondents thought it should be included in textbooks and 90.6% of respondents answered that they would use more than 50% of the revised guideline. Conclusion: It is necessary to update evidence and adjust recommendation ratings and to promote KMCGP. At the same time treatment methods should be taught to K.M.D

• Journal of Oral Medicine and Pain
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• v.44 no.3
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• pp.103-111
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• 2019

Purpose: Patients with taste complaints presenting with various abnormal perceptions and alterations in gustatory function are often encountered in dental clinics. Since taste perception is thought to be influenced by numerous factors including neurological and psychological factors, the gustatory profiles of patients complaining of taste abnormalities should be very different. However, the gustatory profiles based on the clinical subtypes of taste complaints have not been fully studied. This study aimed to better understand the gustatory profiles depending on the clinical subtypes of taste complaints. Methods: Clinical data from 169 patients with complaints of altered taste were retrospectively collected to analyse their clinical and gustatory profiles. These complaints were subdivided into hypergeusia, hypogeusia, and dysgeusia for each taste quality according to the clinical types of these complaints. The gustatory profiles were then established by analysing the detection and recognition thresholds for each taste quality depending on the clinical subtypes of taste complaints. Results: Clinical analysis revealed that patients with taste complaints had widely diverse clinical profiles. There were significant differences between males and females with taste complaints in the prevalence rates of symptoms like dry mouth, tongue coating, and burning sensation. While hypogeusia (76.3%) was the most frequent type of taste complaint, it was revealed that the taste thresholds were not always consistent with the patient's description of gustatory symptoms. Conclusions: Patients with taste complaints exhibited diverse clinical profiles with sex differences. Considering the diversity of the taste complaints, the quantitative gustatory testing methods can be valuable to differentially evaluate the presence and intensity of altered taste in patients with these complaints.

• Investigative Magnetic Resonance Imaging
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• v.23 no.2
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• pp.100-113
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• 2019

Sarcoidosis is a multisystem disease characterized by noncaseating granulomas. Cardiac involvement is known to have poor prognosis because it can manifest as a serious condition such as the conduction abnormality, heart failure, ventricular arrhythmia, or sudden cardiac death. Although early diagnosis and early treatment is critical to improve patient prognosis, the diagnosis of CS is challenging in most cases. Diagnosis usually relies on endomyocardial biopsy (EMB), but its diagnostic yield is low due to the incidence of patchy myocardial involvement. Guidelines for the diagnosis of CS recommend a combination of clinical, electrocardiographic, and imaging findings from various modalities, if EMB cannot confirm the diagnosis. Especially, the role of advanced imaging such as cardiac magnetic resonance (CMR) imaging and positron emission tomography (PET), has shown to be important not only for the diagnosis, but also for monitoring treatment response and prognostication. CMR can evaluate cardiac function and fibrotic scar with good specificity. Late gadolinium enhancement (LGE) in CMR shows a distinctive enhancement pattern for each disease, which may be useful for differential diagnosis of CS from other similar diseases. Effectively, T1 or T2 mapping techniques can be also used for early recognition of CS. In the meantime, PET can detect and quantify metabolic activity and can be used to monitor treatment response. Recently, the use of a hybrid CMR-PET has introduced to allow identify patients with active CS with excellent co-localization and better diagnostic accuracy than CMR or PET alone. However, CS may show various findings with a wide spectrum, therefore, radiologists should consider the possible differential diagnosis of CS including myocarditis, dilated cardiomyopathy (DCM), hypertrophic cardiomyopathy, amyloidosis, and arrhythmogenic right ventricular cardiomyopathy. Radiologists should recognize the differences in various diseases that show the characteristics of mimicking CS, and try to get an accurate diagnosis of CS.

• Journal of the Korea Convergence Society
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• v.10 no.5
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• pp.17-26
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• 2019

We aimed to build a patient-based allergy prevention system using the smartphone and focused on the region of interest (ROI) extraction method for Optical Character Recognition (OCR) in the general environment. However, the current ROI extraction method has shown good performance in the experimental environment, but the performance in the real environment was not good due to the noisy background. Therefore, in this paper, we propose the compared methods of reducing noisy background to solve the ROI extraction problem. There five methods used as a SMF, DIN, Denoising Autoencoder(DAE), DAE with Convolution Neural Network(DAECNN) and median filter(MF) with DAECNN (MF+DAECNN). We have shown that our proposed DAECNN and MF+DAECNN methods are 69%, respectively, which is relatively higher than the conventional DAE method 55%. The verification of performance improvement uses MSE, PSNR and SSIM. The system has implemented OpenCV, C++ and Python, including its performance, is tested on real images.

• The Journal of Korean Obstetrics and Gynecology
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• v.36 no.3
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• pp.114-128
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• 2023

Objectives: This study was conducted to reflect Korean Medicine doctors (KMD)' perception of lifestyle management in the process of developing a Korean Medicine (KM) Clinical Practice Guidelines (CPG) of female infertility. Methods: We sent four e-mails containing links to online questionnaires to 25,286 KMD belonging to the Association of Korean Medicine. The questionnaire consisted of sexual intercourse, weight, diet, exercise, drinking, smoking, caffeine intake, stress etc. KMD responded to self-administered questionnaires, and we analyzed 786 responds. Results: KMD put stress first among the infertile women's lifestyle management items, weight and sexual intercourse were next. Also KMD put stress first among the spouses' lifestyle management items, drinking and sexual intercourse were next. In relation to sexual intercourse, 'Recognizing the Fertile Window' was the most important. In relation to stress in the emotional domain, 'Depression' and 'Anxiety' were the most important, and in relation to stress in the relationship domain, 'Deteriorating of marital relationship' was the most important. Conclusions: We surveyed the status of KMD' awareness of infertility lifestyle management for patient education, and reflected it in the modification of the CPG for female infertility.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.6 no.6
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• pp.103-110
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• 2016

The recent frequent cases of damage due to leakage of medical data and the privacy of medical patients is increasing day by day. The government says the Privacy Rule regulations established for these victims, such as prevention. Medical data guidelines can be seen 'national medical privacy guidelines' is only released. When replacing the image data between the institutions it has been included in the image file (JPG, JPEG, TIFF) there is exchange of data in common formats such as being made when the file is leaked to an external file there is a risk that the exposure key identification information of the patient. This medial image file has no protection such as encryption, This this paper, introduces a masking technique using a mosaic technique encrypting the image file contains the application to optical character recognition techniques. We propose pseudonymization technique of personal information in the image data.

• International Journal of Advanced Culture Technology
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• v.10 no.1
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• pp.187-195
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• 2022

Since most of the first witnesses of cardiac arrest in clinical settings are nurses, the ability to perform CPR is important. The purpose of this study is to provide basic data for developing education that strengthens CPR performance in the future by examining inactive nurses' CPR knowledge, attitude, performance confidence, device discomfort, continued use intention, and educational achievement. The final subjects of this study were 88 inactive nurses residing in B city. The study period was from June 23, 2020 to December 24, 2020. The collected data were analyzed by descriptive statistics and Pearson correlation using SPSS WIN 24.0 program. After obtaining the subject's consent for the study, an inactive nurse who understood the purpose of the study and voluntarily consented to the study participated. To investigate the perception of experience, the subjects watched 360-degree virtual reality contents about CPR in the hospital using HMD. The data of this study were analyzed using SPSS WIN 22.0.program. As a result of this 360-degree study on CPR in the hospital, the average score for the inactive nurses on CPR knowledge was 12.70±3.43, the average score for performance confidence was 6.04±2.45, and the average score for attitude was 4.63±0.80. As a result of experience recognition of 360-degree virtual reality contents for CPR in hospitals, the average score for device discomfort was 4.01±0.94, the average score for continued use intention was 2.07±0.85, and the average score for educational achievement was 2.11±0.79. As a result of correlation analysis, educational achievement and continued use intention were significantly positively correlated (r=.77, p<.001). Based on the results of this study, in order to strengthen the CPR performance capability of inactive nurses in emergency situations, it is necessary to increase CPR knowledge and confidence in performing CPR, and to cultivate a positive attitude toward performing CPR. In addition, it is necessary to implement CPR simulation education based on patient cases by applying content that considers educational achievement and continuous use intention.