• Smart Structures and Systems
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• 제5권2호
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• pp.153-171
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• 2009

In this paper, the analytical fault detection and diagnosis (FDD) is presented using model-based and signal-based methodology with wavelet analysis on signals obtained from sensors and sensor networks. In the model-based FDD, we present the modeling of contact interface found in soft materials, including the biomedical contacts. Fingerprint analysis and signal-based FDD are also presented with an experimental framework consisting of a mechanical pneumatic system typically found in manufacturing automation. This diagnosis system focuses on the signal-based approach which employs multi-resolution wavelet decomposition of various sensor signals such as pressure, flow rate, etc., to determine leak configuration. Pattern recognition technique and analytical vectorized maps are developed to diagnose an unknown leakage based on the established FDD information using the affine mapping. Experimental studies and analysis are presented to illustrate the FDD methodology. Both model-based and wavelet-based FDD applied in contact interface and manufacturing automation have implication towards better quality of life by applying theory and practice to understand how effective diagnosis can be made using intelligent FDD. As an illustration, a model-based contact surface technology an benefit the diabetes with the detection of abnormal contact patterns that may result in ulceration if not detected and treated in time, thus, improving the quality of life of the patients. Ultimately, effective diagnosis using FDD with wavelet analysis, whether it is employed in biomedical applications or manufacturing automation, can have impacts on improving our quality of life.

• Archives of Plastic Surgery
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• 제38권1호
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• pp.93-95
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• 2011

Purpose: Mucormycosis generally occurs in patients with uncontrolled diabetes mellitus and immunocompromised conditions. It is rare, but once a patient is infected with it, it can occur as a rapidly extending, aggressive, and life-threatening rhinocerebral infection with a high mortality rate. Methods: A 70-year-old female patient had a 40 years of history of adult onset diabetes mellitus. She presented herself with severe right hemifacial pain, swelling, and weakness for 3 days and was admitted to ENT. On a facial computed tomography (CT) scan, it was found that her infection extended from her inferior temporal scalp to her submental area and involved her submandibular, masseter, prevertebral, parapharyngeal, retropharyngeal, and pharyngeal mucosal space and pansinusitis. Through endoscopic sinus surgery, mucormycosis was confirmed via histologic examination. Results: Despite empiric antibiotics and amphotericin B administration, the patient was in a septic condition and in a coma. The patient's family wanted to withdraw her life support, and the patient expired. Conclusion: Mucormycosis is very rare, but is one of the disastrous complications of uncontrolled diabetes mellitus. Suspicion of its occurrence, based on identified risk factors, and its rapid diagnosis can enhance the chance of its cure.

• 한국정보통신학회논문지
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• 제23권1호
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• pp.77-83
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• 2019

최근 의료 기술의 발달로 제1형 당뇨에 대한 진단율이 높아지면서 당뇨 환아가 증가하고 있다. 이러한 상황에서 환아들에게 당뇨 교육이 필요하지만, 효율적이고 적절한 교육 콘텐츠는 부재한 상황이다. 특히 이러한 교육은 혈당 변화 대처요령과 행동치료에 대한 꾸준하고 반복적인 학습이 필요하다. 따라서 본 연구에서는 10-11세 환아들의 눈높이에 맞춰 주도적으로 학습할 수 있는 에듀테인먼트 콘텐츠를 제안하고자 한다. 효과적인 학습을 위해 주사 실습콘텐츠를 구성하였고 반복적인 학습을 위해 하이브리드방식을 사용하였다. 사용성 테스트를 통해서 이러한 구성이 효과적임을 알 수 있었다. 본 연구는 상대적으로 당뇨 교육을 받기 어려운 지역의 환아들이 쉽게 접근 가능함과 동시에 앞으로 개발될 아동의 눈높이에 맞춘 당뇨 교육 콘텐츠 연구의 기반 연구로써 공헌할 것으로 기대된다.

• Journal of Chest Surgery
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• 제25권12호
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• pp.1570-1577
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• 1992

The vascular surgery is the field that has developed in early 20 century and is progressing nowadays. Recent advance in surgical technique accompanying with excellent medical diagnosis and treatment, prompt angiographic usage, development of variable prosthetic material, and concomitant use of anti-coagulant have made remarkable results of vascular surgery. 83 cases of vascular surgery have been performed at Thoracic and Cardiovascular Surgery Department of Pusan National Unversity Hosaital since 1971 till 1990, for 20 years and their results are followed. Patient ductus arteriosus and Buerger`s disease were omited in this study. 1. The age distribution shows that the fifth and sixth decades are most frequently affected and mean age was 56.1 years old. Male to female ratio is 1: 2.32. 2. Among the 83 cases of all, number of occlusive vascular disease is 46 and that of aneurysmal disease is 33. 3. In clinical manifestation, most common symptom of occlusive disease is pulselessness and pain was next. Mass sensation is most commonly complained by patients of aneurysmal disease. 4. CT scan was more important in diagnosis of aneurysmal diseases and angiogram was more commonly used in occlusive diseases. 5. The common site of arterial occlusion was common iliac artery, femoral artery, aortic bifurcation, and external iliac artery, as its frequency rate. The most commonly affecting portion of aortic aneurysm was abdminal aorta, and descending thoracic aorta and femoral artery were next 6. Preoperative associated diseases were atherosclerosis[41 cases], hypertension[21 cases], valvular heart disease[11 cases], and diabetes mellitus[9 cases], etc, 7. Operative methods in ocllusive diseases were thrombectomy[36.9%], endarterectomy [10.9%], and bypass graft insertion[52.7%]. Among the bypass graft, Y-graft was used in 7 case, straight graft was used in 17 cases, and saphenous venous graft was used in 2 cases. 8. Postoperative complications were developed in 17 cases, and morbidity rate was 36. 9. Eleven patient were died within 1 month after operation, so operative mortality rate was 13.3%. 10. Duration of patency was beteween 7 and 58 months[average 27.5 months] in occlusive diseases and their 5-year patency rate was 56.3%. Duration of patency of aneurysmal disease was 20 months in aveage and their 5-year patency rate was 51.3%. 11. Patients of eleven cases of occlusive disease and two cases of aneurysmal disease required reoperation for variable reason. 12. 35 cases of patient have used anticoagulants: coumadin, ticlid, and persanthin-ASA combination.

• Journal of Trauma and Injury
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• 제33권4호
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• pp.260-263
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• 2020

Necrotizing fasciitis is an infection of the subcutaneous tissue that results in destruction of the fascia and is disproportionately common in patients with chronic liver disease or diabetes. Necrotizing fasciitis of the head and neck is rare, but has a high fatality rate. A 50-year-old man with a past medical history of diabetes reported a chief complaint of a wound in the posterior neck due to trauma. The wound had grown and was accompanied by pus and redness, and the patient had a fever. When the patient was referred to department of plastic & reconstructive surgery, the sternocleidomastoid muscle, semispinalis capitis muscle, splenius capitis muscle, and trapezius muscles were exposed, and the size of the defect was about 25×20 cm. Dead tissue resection was performed before negative-pressure wound therapy, followed by a split-thickness skin graft (STSG). After a 2-week course of aseptic dressing post-STSG, the patient recovered completely. No postoperative complications were observed for 1 year. Necrotizing fasciitis is a life-threatening, rapidly spreading infection, requiring early diagnosis and active surgical treatment. In addition, broad-spectrum antibiotics are required due to the variety of types of causative bacteria. Broad necrotizing fasciitis of the posterior neck is rare, but can quickly progress into a life-threatening stage.

• Tuberculosis and Respiratory Diseases
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• 제45권4호
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• pp.705-713
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• 1998

연구배경: 당뇨병 환자의 폐결핵은 비당뇨병 환자에 비해 중증의 비율이 높다는 보고가 있었으나 입원한 당뇨병환자와 결핵실태조사에 의한 일반인을 비교하였으므로 입원한 당뇨병환자가 상대적으로 더 심한 폐결핵을 가지고 있을 수 있다. 이에 저자들은 입원한 환자를 대상으로 당뇨병군과 비당뇨병군 환자사이에 폐결핵 임상양상의 차이를 비교하고, 폐결핵 진단시 당뇨병의 정도와 폐결핵의 중증도와의 관계를 조사하고 혈당의 조절정도가 폐결핵의 치료결과에 어떠한 영향을 주는가를 알아보고자 본 연구를 시행하였다. 방 법: 1995년 1월 1일부터 1996년 12월 31일까지 경희의료원에 입원한 폐결핵환자중 당뇨병에 동반된 폐결핵 환자 82명과 비당뇨병성 폐결핵환자 83명을 대상으로 폐결핵 임상양상, 진단 방법, 방사선 소견, 치료반응의 차이를 비교하고, 당뇨병환자의 폐결핵에 있어서는 폐결핵 진단시 Hb Alc와 폐결핵의 중증도와의 관계, 폐결핵 치료종결시 혈당조절정도와 폐결핵 치료 결과를 조사하였다. 결 과: 당뇨병군과 비당뇨병군에서 폐결핵 환자의 성비는 각각 58 : 24, 62: 21로써 두군 모두 남자가 많았다. 평균연령은 당뇨병군이 55세, 비당뇨병군이 44세로 연령 분포를 보면 당뇨병군은 50-60 대에 많고 비당뇨병군은 20-30 대에 많았다. 폐결핵 발병빈도는 당뇨병의 이환기간이 5-10년일 때 가장 높았다. 흉부 방사선 소견상 병변의 범위는 당뇨병군과 비당뇨병군에서 의미 있는 차이는 없었고, 두군 모두에서 중등증인 경우가 각각 60.9, 50.6%로 가장 많았다. 폐하야 결핵은 당뇨병군(19.5%)에서 비당뇨병군(4.8%)에 비해 높았다(p<0.05). 이환된 폐엽의 수는 당뇨병군(2.35엽)과 비당뇨병군(2.21엽) 모두 다수 엽의 침범소견을 보였다. 두군의 평균 치료기간은 당뇨병군에서 10개월, 비당뇨병군에서 8개월이었으며 치료반응에 있어서 완치는 당뇨병군 85.4%, 비당뇨병군 89.2%, 치료실폐가 각각 8.6, 3.6%, 재발은 각각 3.6, 1.2%, 폐결핵으로 사망한 경우는 각각 1명씩으로 두 군간의 통계학적으로 의미 있는 차이는 없었다. 폐결핵 진단당시 HbAlc와 방사선학적 소견상 폐결핵의 중증도 사이에는 의미 있는 관련성이 없었다. 폐결핵 치료기간동안 혈당조절이 잘된 경우 완치율이 높았고(p<0.05), 혈당조절이 불량한 경우 치료실패율이 높았다 (p<0.05). 결 론: 입원치료를 받았던 당뇨병군과 비당뇨병군의 폐결핵 환자들의 임상상과 폐결핵의 중증도, 치료결과에는 차이가 없었으나 당뇨병군에서 혈당조절이 불량한 환자에서 치료실패율이 높아 당뇨병이 있는 폐결핵 환자에서는 혈당의 적절한 조절이 필수적이며, 고혈당 환자에서 결핵치료 실패를 초래하는 기전에 대한 연구가 필요하겠다.

• 대한임상검사과학회지
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• 제38권3호
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• pp.208-211
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• 2006

Microalbuminuria is most frequently caused by kidney damage from diabetes. Moreover, many other conditions can lead to kidney damage, such as high blood pressure, heart failure, cirrhosis, or systemic lupus erythematosus (SLE). The measurement of the microalbumin in urine may be useful for the early diagnosis or as a predictor of nephropathy in diabetes. The most common method for getting a quantitative measurement of urinary protein relies on a 24-hour urine collection. The result of this method is accurate. But 24hr urine collection is difficult to obtain and variations in volume are frequent. Also the patients complain about urine collection. We tried to measure reference values for microalbumin using fasting urine and compare them with the albumin/creatinine ratio using 24hr urine. The concentrations of microalbumin in fasting urine and 24hr urine were $7.1{\pm}3.8mg/L$, $5.7{\pm}2.9mg/L$ (r=0.61, p=0.27), respectively. The albumin/creatinine ratios using fasting urine and 24hr urine were $8.7{\pm}4.2{\mu}g/mg$, $8.7{\pm}4.0{\mu}g/mg$ (r=0.76, p=0.88), respectively. This study indicated that the measurement of microalbumin in fasting urine was an easy and simple method for early diagnosis or to predict nephropathy in diabetes. Thus, setting up the reference value using fasting urine may be useful in the screening test for the diabetic nephropathy patients instead of using the 24hr albumin excretion rate (AER).

• Journal of Preventive Medicine and Public Health
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• 제30권2호
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• pp.342-355
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• 1997

This research was carried out to determine the performance rate of health related practices, to measure the agreement between morbidity by doctor's diagnosis and morbidity by subject' self-reported and the degree of association between health related practices and morbidity rate by doctor's diagnosis, to identify their effects on morbidity among rural area populations. The data were gathered by volunteer residents (over the age of 20) of Haman Myeon, Haman Gun, Kyeongsangnam Do in Korea, from June 10, 1993 to June 12, 1993 (369 male and 516 female). Face to face interview, lab, chest P-A, EKG and physical examination were completed. Descriptive statistics, agreement analysis and multiple logistic regression procedures were employed for analyses. The results of the study were summarized as follows : 1) Age adjusted morbidity rates by doctor's diagnosis and self-reported were 38.5% (male:37.3%, female:36.5%), 26.4% (male:33.3%, female:27.5%), respectively. Kappa coefficient between morbidity by doctor's diagnosis and morbidity by self-reported was 0.21 (male:0.21, female:0.22). 2) The frequency of disease by doctor's diagnosis was as follows: hypertension(15.3%), gastritis (9.6%), diabetes mellitus (8.5%), live. disease (8.1%), and degenerative arthritis (6.2%) in the study population. 3) Order of health practice performance rate was as follows: Males-normal body weight (62.1%), non-heavy alcohol consumption (57.5%), 7-8 hours of sleeping (50.1%), non-smoking (21.7%), and exercise (19.8%). Females- non-heavy alcohol consumption (97.3%), non-smoking (84.7%), normal body weight (57.8%), 7-8 hours of sleeping (45.0%), and exercise (9.9%). 4) There was no significant relationship between health related practice and morbidity except exercise among health related practices. 5) Health related practice index which was recategorized by high, medium, and low had effects on the probability of developing morbidity.

• 보건교육건강증진학회지
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• 제32권3호
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• pp.23-31
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• 2015

Objectives: The contribution of health behavior is high in the mortality variation. Mortality variation can be decreased through the policies and programs for improving health behavior. We investigated that health behaviors effected with standardized mortality in community. Methods: We examined the distribution of health determinant factors and correlation analyzed between factors and performed multiple linear regression. Data were collected from 2012 Community Health Survey in 253 communities, annual regional statistics, and statistics from Statistics Korea. Results: This study defined that the variation of standardized mortality and there are exist inequality level of health determinant factors in 253 communities. This study showed that the higher standardized mortality explained through health behavior factors of the current smoking rate, walking exercise rate and diagnosis of hypertension or diabetes rate after adjusted other factors(adjusted $R^2=0.709$, p<0.001). Conclusions: Smoking, walking exercise and diagnosis chronic disease affecting on the regional variation of standardized mortality. These factors can be improved by the local residents themselves.

• 대한의생명과학회지
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• 제26권4호
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• pp.302-309
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• 2020

Human Coxsackievirus B5 (HuCoxV-B5) infection has been associated with various diseases such as myocarditis, aseptic meningitis, hand-foot-and mouth-disease, and insulin-dependent diabetes. HuCoxV-B5 is a virus transmitted through the fecal-oral route and is detected in clinics, aquatic environments, food, shellfish, etc. and is one of the more important viruses in public health because of its incidence rate reported worldwide. In this study, a combination of SYBR Green-based real-time PCR primers for molecular diagnosis including monitoring of HuCoxV-B5 was selected and the optimal reaction conditions were established. Compared with the previously reported TaqMan probe-based real-time PCR method, assessments including a sample applicability test were performed. Results showed that the real-time PCR method developed in this study was suitable for a molecular diagnostic technique for detecting HuCoxV-B5. This study is expected to contribute to efforts in responding to safety accidents in public health because the proposed method facilitates rapid diagnosis of clinical patients. It can also be used as a specific monitoring tool of HuCoxV-B5 in non-clinical areas such as aquatic environments among others.