No abstract available.

In recent years, deep learning has been used in many researches in cancer screening based on medical imaging. Among cancer screening using optical imaging, melanoma detection is the biggest concern. Stanford University researchers used CNNs (convolutional neural networks) to classify skin lesions comparing with 21 dermatologists for 2 tasks. CNN performed better than all the dermatologists' tasks. Finding pulmonary nodules on chest X-ray has the longest history in cancer screening using medical imaging and neural network technology began to be applied before the deep learning technology matured as it is now. But, the applications were mainly focused on screening in CT images. There is relatively few research on pulmonary nodule detection using deep learning in chest X-rays. For breast cancer screening in mammography, adoption of neural network technologies has already begun early. Many studies have shown that tumor detection using CNNs is useful in breast cancer screening. Most of the results are from mammography, but studies using tomosynthesis, ultrasound, and MRI have also been published. Although imaging modality and target cancer are different, we can see that there are similar kinds of future challenges. First, it is not easy to acquire a large amount of medical image data required for deep learning. Second, it is difficult to learn if there are many medical image data but they are not properly labeled. Finally, there is a need for technologies that can use different imaging modalities at the same time, link with electronic health records, and use genetic information for more comprehensive screening.
Breast Neoplasms ; Diagnostic Imaging* ; Early Detection of Cancer* ; Electronic Health Records ; Learning* ; Magnetic Resonance Imaging ; Mammography ; Mass Screening ; Melanoma ; Optical Imaging ; Skin ; Skin Neoplasms ; Thorax ; Ultrasonography

Despite hearing loss being a prevalent chronic condition, estimated to nearly 20% of the global population by the World Health Organization, the specific association with individual lifestyle factors, particularly alcohol consumption, remains unclear. In South Korea, approximately 80% of the population engages in alcohol consumption, with a notably high prevalence among males, indicating a high-risk drinking pattern. Therefore, this study aimed to assess the correlation between alcohol consumption and hearing loss in male workers, as well as to analyze additional variables such as alcohol flushing reaction, with the intention of improving worker health.

Despite hearing loss being a prevalent chronic condition, estimated to nearly 20% of the global population by the World Health Organization, the specific association with individual lifestyle factors, particularly alcohol consumption, remains unclear. In South Korea, approximately 80% of the population engages in alcohol consumption, with a notably high prevalence among males, indicating a high-risk drinking pattern. Therefore, this study aimed to assess the correlation between alcohol consumption and hearing loss in male workers, as well as to analyze additional variables such as alcohol flushing reaction, with the intention of improving worker health.

Despite hearing loss being a prevalent chronic condition, estimated to nearly 20% of the global population by the World Health Organization, the specific association with individual lifestyle factors, particularly alcohol consumption, remains unclear. In South Korea, approximately 80% of the population engages in alcohol consumption, with a notably high prevalence among males, indicating a high-risk drinking pattern. Therefore, this study aimed to assess the correlation between alcohol consumption and hearing loss in male workers, as well as to analyze additional variables such as alcohol flushing reaction, with the intention of improving worker health.

The primary purpose of this review is to present an overview of relationship between human spontaneous eyeblinking and internal cognitive processes. The second purpose is to address the neural substrates of human eyeblinking based on recent studies focusing on the central dopaminergic system and to explore the significance of spontaneous eyeblinks in neuropsychiatric disorders. We reviewed recent and previous studies on eyeblink patterns under various cognitive tasks. We also reviewed neural substrates of eyeblinking, particularly based on the central dopaminergic system. This paper suggests that spontaneous eyeblinks are highly correlated with various cognitive processes and the activity of central dopaminergic system. Various neuropsychiatric disorders are related to the alteration of the occurrence of eyeblinking. Spontaneous eyeblinking is the unique human behavior that occurs regularly without conscious effort. It is known that the rate of eyeblinking is modulated by internal cognitive processes and dopamine-related neuropsychiatric disorders. Further research is required to how the temporal dynamics of spontaneous eyeblinking is correlated with the disease activity and progression.
Dopamine ; Humans

BACKGROUND: Transcatheter aortic valve replacement (TAVR) has been suggested as a less invasive treatment for high-risk patients with aortic valve disease. In this study, we compared the outcomes of conventional surgical aortic valve replacement (AVR) and TAVR in elderly patients aged over 80. METHODS: A total of 108 patients aged 80 years or older who underwent isolated AVR (n=35) or TAVR (n=73) from 2010 through 2015 at Asan Medical Center were identified. Early and late clinical outcomes, including echocardiographic findings, were evaluated in both groups. The mean follow-up duration was 766.4±528.7 days in the AVR group and 755.2±546.6 days in the TAVR group, and the average timing of the last follow-up echocardiography was at 492.6±512.5 days in the AVR group and 515.7±526.8 days in the TAVR group. RESULTS: The overall early mortality was 2.8% (0 of 35, 0% in the AVR group vs. 3 of 73, 4.1% in the TAVR group). Permanent pacemaker insertion was significantly more common in the TAVR group (p=0.010). Renal failure requiring dialysis and new-onset atrial fibrillation was more frequent and the length of hospital stay was longer in the AVR group; however, this difference did not reach statistical significance. In the TAVR group, 14 patients (19.2%) were rehospitalized due to cardiac problems, and 13 patients (17.8%) had developed significant paravalvular leakage by the time of the last follow-up echocardiography. CONCLUSION: TAVR could be a good alternative to conventional surgical AVR in elderly patients. However, TAVR has several shortcomings, such as frequent significant paravalvular leakage or readmission, which should be considered in decision-making.
Aged ; Aortic Valve* ; Atrial Fibrillation ; Chungcheongnam-do ; Dialysis ; Echocardiography ; Follow-Up Studies ; Heart Valve Diseases ; Humans ; Length of Stay ; Mortality ; Renal Insufficiency ; Transcatheter Aortic Valve Replacement*

OBJECTIVES: This study was performed to understand farmers' health status by general characteristic, and to find out the related factors. METHODS: All the 984 subjects were interviewed by means of a structured questionnaire and SF-12. Among them, only 812 were eligible for analysis. Statistical methods used included frequency, t-test, ANOVA, binary logistic regression with SPSS 19.0. RESULTS: In binary logistic regression, marital status, smoking, regular exercise and monthly day off were associated with physical component score. Marital status, smoking and score of pesticide protective device wearing were associated with mental component score. CONCLUSIONS: This study suggests that effort to develop health promotion programs for workers of agricultural industry considering these results can improve their perceived health status.
Health Promotion ; Logistic Models ; Marital Status ; Protective Devices ; Smoke ; Smoking

No abstract available.
Artificial Intelligence*

Background: This study aimed to investigate the psychosocial symptoms and experiences of bereaved parents of victims and parents of survivors of the Sewol Ferry accident five years after the accident. Methods: In-depth interviews of 186 bereaved parents of victims or survivors of the Sewol Ferry accident were conducted. We elicited and categorized meaning units relevant to the psychological, cognitive, and physical traits of the participants from these interviews.Differences in responses between bereaved parents and survivors’ parents and between genders were examined using frequency analyses and χ 2 tests. Results: Data were organized under seven headings: observed attitude and impression of participants, difficulties due to mental health problems, difficulties due to physical pain, difficulties in relationships, negative changes following the incident, positive changes following the incident, and help needed. Within these headings, 27 themes, 60 sub-themes, and 80 meaning units were elicited. Conclusion This study explored the psychiatric, physical, and relational problems reported by bereaved parents and those of survivors as well as major changes in their personal and social lives after the Sewol Ferry accident. Differences in responses according to gender were also identified. The results from this study could inform and facilitate the implementation of intervention measures, such as long-term psychological evaluation, to bereaved parents of victims or survivors of disasters.