OBJECTIVES: To characterize the usage patterns of new types of tobacco products (NTTPs) to develop effective strategies for the regulation of NTTPs in Korea. METHODS: We conducted focus group interviews to identify the NTTP usage patterns of research subjects. The NTTPs were limited to electronic cigarettes (e-cigarettes), waterpipe tobacco, and rolling tobacco. We categorized 30 research subjects into 4 groups. The e-cigarette group was divided into adult and adolescent groups. Each group contained 7-8 subjects. An interview lasting approximately 2 hours was conducted with each group. RESULTS: Ninety percent of NTTP users used an NTTP in combination with conventional cigarettes. Subjects mostly bought NTTPs online, unlike how they bought cigarettes. Additionally, a great deal of information, such as how to use NTTPs and descriptions of NTTP products, was exchanged through online or offline societies. The primary reason why the subjects used NTTPs was that NTTPs offer a greater range of flavors and aromas than cigarettes. Moreover, NTTPs were felt to be less repulsive than cigarettes. NTTPs were not used as a cigarette substitute; rather, they were mostly used in places and situations where traditional cigarette smoking was not allowed. CONCLUSIONS: Based on the results of this study, the government should conduct studies on the effects of the combined use of NTTPs and cigarettes on the human body, obtain and provide accurate data regarding NTTP use, and develop and implement polices to ban NTTP advertising, which may arouse adolescents' curiosity, and the addition of flavoring substances to tobacco products.
Adolescent ; Adult ; Electronic Cigarettes ; Exploratory Behavior ; Focus Groups* ; Human Body ; Humans ; Korea ; Research Subjects ; Smoking ; Tobacco Products* ; Tobacco*

Tobacco products are rapidly evolving. Since the World Health Organization Framework Convention on Tobacco Control came to effect in 2005, the parties of the treaty have been aiming to control tobacco use. Moreover, the social norm of smoking has changed. These changes have prompted the tobacco industry to evolve their products and business model. There have been several evolutions in tobacco products. Firstly, new tobacco products, such as electronic cigarettes and heated tobacco products were introduced into markets that were previously dominated by conventional cigarettes. Thus, smokers are able to select alternative tobacco products. Secondly, new devices for tobacco use, including universal serial bus, smart watch, and car key devices, have been developed and released. These devices are popular among females and youth, who wish to hide their smoking behavior. Thirdly, nicotine, which is used in tobacco products, has also evolved. Typically, ‘free-base nicotine’ has been the main form used in tobacco products, because it helps to deliver nicotine quickly to the smoker's brain. However, a new form of nicotine, ‘nicotine salt’, is used in electronic cigarettes. It can deliver a more highly concentrated dose of nicotine to the smoker’s brain. To regulate these evolving products, laws are required to prevent the easy access of new tobacco products in the Korean market and therefore, a new organization for monitoring the evolution of tobacco products is required. Additionally, we need to encourage young people and scholars to develop interest in tobacco product control, thus ensuring adequate regulation of new tobacco products.

Cardiogenic shock is an acute circulatory failure due to compromised myocardial contractility associated with congenital heart diseases and cardiomyopathies, such as myocarditis. In this article, the authors present a 3-step overview of cardiogenic shock diagnosis and management to restore tissue oxygen delivery. The first step is early recognition of nonspecific signs of the shock. The second step is medical management, monitoring, and repeated assessment. In addition to conventional parameters, biomarkers may be useful to monitor the shock. The final step is mechanical circulatory support, such as ventricular assist devices, for children with the refractory shock. We also briefly describe the shock in multisystem inflammatory syndrome in children with coronavirus disease 2019.

Cardiogenic shock is an acute circulatory failure due to compromised myocardial contractility associated with congenital heart diseases and cardiomyopathies, such as myocarditis. In this article, the authors present a 3-step overview of cardiogenic shock diagnosis and management to restore tissue oxygen delivery. The first step is early recognition of nonspecific signs of the shock. The second step is medical management, monitoring, and repeated assessment. In addition to conventional parameters, biomarkers may be useful to monitor the shock. The final step is mechanical circulatory support, such as ventricular assist devices, for children with the refractory shock. We also briefly describe the shock in multisystem inflammatory syndrome in children with coronavirus disease 2019.

Tobacco products are rapidly evolving. Since the World Health Organization Framework Convention on Tobacco Control came to effect in 2005, the parties of the treaty have been aiming to control tobacco use. Moreover, the social norm of smoking has changed. These changes have prompted the tobacco industry to evolve their products and business model. There have been several evolutions in tobacco products. Firstly, new tobacco products, such as electronic cigarettes and heated tobacco products were introduced into markets that were previously dominated by conventional cigarettes. Thus, smokers are able to select alternative tobacco products. Secondly, new devices for tobacco use, including universal serial bus, smart watch, and car key devices, have been developed and released. These devices are popular among females and youth, who wish to hide their smoking behavior. Thirdly, nicotine, which is used in tobacco products, has also evolved. Typically, ‘free-base nicotine’ has been the main form used in tobacco products, because it helps to deliver nicotine quickly to the smoker's brain. However, a new form of nicotine, ‘nicotine salt’, is used in electronic cigarettes. It can deliver a more highly concentrated dose of nicotine to the smoker’s brain. To regulate these evolving products, laws are required to prevent the easy access of new tobacco products in the Korean market and therefore, a new organization for monitoring the evolution of tobacco products is required. Additionally, we need to encourage young people and scholars to develop interest in tobacco product control, thus ensuring adequate regulation of new tobacco products.

Tobacco products are rapidly evolving. Since the World Health Organization Framework Convention on Tobacco Control came to effect in 2005, the parties of the treaty have been aiming to control tobacco use. Moreover, the social norm of smoking has changed. These changes have prompted the tobacco industry to evolve their products and business model. There have been several evolutions in tobacco products. Firstly, new tobacco products, such as electronic cigarettes and heated tobacco products were introduced into markets that were previously dominated by conventional cigarettes. Thus, smokers are able to select alternative tobacco products. Secondly, new devices for tobacco use, including universal serial bus, smart watch, and car key devices, have been developed and released. These devices are popular among females and youth, who wish to hide their smoking behavior. Thirdly, nicotine, which is used in tobacco products, has also evolved. Typically, ‘free-base nicotine’ has been the main form used in tobacco products, because it helps to deliver nicotine quickly to the smoker's brain. However, a new form of nicotine, ‘nicotine salt’, is used in electronic cigarettes. It can deliver a more highly concentrated dose of nicotine to the smoker’s brain. To regulate these evolving products, laws are required to prevent the easy access of new tobacco products in the Korean market and therefore, a new organization for monitoring the evolution of tobacco products is required. Additionally, we need to encourage young people and scholars to develop interest in tobacco product control, thus ensuring adequate regulation of new tobacco products.
Adolescent ; Brain ; Commerce ; Electronic Cigarettes ; Female ; Hot Temperature ; Humans ; International Cooperation ; Jurisprudence ; Nicotine ; Smoke ; Smoking ; Social Norms ; Tobacco Industry ; Tobacco Products ; Tobacco Use ; Tobacco ; World Health Organization

South Korea's state health insurer, the National Health Insurance Service (NHIS), is in the process of a compensation suit against tobacco industry. The tobacco companies have habitually endeavored to ensure favorable outcomes in litigation by misusing scientific evidence or recruiting scientists to support its interests. This study analyzed strategies that tobacco companies have used during the NHIS litigation, which has been receiving world-wide attention. To understand the litigation strategies of tobacco companies, the present study reviewed the existing literature and carried out content analysis of petitions, preparatory documents, and supporting evidence submitted to the court by the NHIS and the tobacco companies during the suit. Tobacco companies misrepresented the World Health Organization (WHO) report's argument and misused scientific evidence, and removed the word "deadly" from the title of the citation. Tobacco companies submitted the research results of scientists who had worked as a consultant for the tobacco industry as evidence. Such litigation strategies employed by the tobacco companies internationally were applied similarly in Korean lawsuits. Results of tobacco litigation have a huge influence on tobacco control policies. For desirable outcomes of the suits, healthcare professionals need to pay a great deal of attention to the enormous volume of written opinions and supporting evidence that tobacco companies submit. They also need to face the fact that the companies engage in recruitment of scientists. Healthcare professionals should refuse to partner with tobacco industry, as recommended by Article 5.3 of the WHO Framework Convention on Tobacco Control.
Humans ; Public Health/*legislation & jurisprudence ; Republic of Korea ; Smoking/*legislation & jurisprudence ; Tobacco Industry/*ethics

Electronic cigarettes (e-cigarrettes) were recently introduced and advertised as a smoking cession device in South Korea. As the social norm to quit smoking has gained hold in the country, the number of e-cigarette users is growing rapidly. This phenomenon should be urgently considered, because of the lack of research that has been conducted to examine the safety of e-cigarettes and its efficacy as a smoking cessation aid. This paper raises several public health concerns on e-cigarettes in South Korea. Uncertain regulations of the government on e-cigarettes are contributing to an increase of e-cigarette users and allowing the e-cigarette industry to circumvent existing regulations. The aggressive marketing activity of this industry is also a core factor that is responsible for the rapid increase of e-cigarette use, in particular among the youth. Following the enforcement of tobacco control, some cigarette smokers may be encouraged to purchase e-cigarettes in order to circumvent the regulations, even though the dual use of e-cigarette and cigarette may be more harmful. Until there is clear evidence of the e-cigarette's safety, it is recommended that the industry's marketing and promotional activities be banned and closely monitored, and public campaigns be initiated to educate the public regarding e-cigarettes.
Adult ; *Electronics ; Female ; *Government Regulation ; Health Promotion ; Humans ; Male ; Middle Aged ; *Nicotine ; Prevalence ; *Public Health Practice ; Republic of Korea/epidemiology ; Safety ; Smoking/epidemiology/legislation & jurisprudence/*prevention & control ; Smoking Cessation/*legislation & jurisprudence ; Young Adult

BACKGROUND: There is a well recognized interlaboratory variation in the results using the polymerase chain reaction(PCR) to detect the IS6110 sequence. The clinical utility of a commercially developed PCR test(Amplicor) in bronchial washings for detecting pulmonary tuberculosis in smear negative patients was evaluated. The sensitivity and specificity of Amplicor was compared with that of an in-house PCR test used for detecting the IS6110 sequence of Mycobacterium tuberculosis(M.tbc) in the bronchial washing fluid. METHODS: 66 patients whose sputum smear for M.tbc were negative or who could not produce any sputum were recruited from January 1999 to July 1999. They all had a bronchoscopy performed to determine if there were signs of hemoptysis, patients who could not cough up sputum, lung lesion that exclude pulmonary tuberculosis. Pulmonary tuberculosis was diagnosed on the basis of a positive culture or a response to anti-tuberculosis therapy. RESULTS: 19 patients with tuberculosis were identified and samples from 16 patients were later confirmed by culture. Bronchial washing for Amplicor PCR revealed a sensitivity, specificity, positive and negative predictive values of 94.7%, 97.9%, 94.7%, 97.9%, respectively. Using IS6110 based PCR, the sensitivity, specificity, positive and negative predictive values were of 73.7%, 87.2%, 70%, 89.1% respectively. CONCLUSION: Bronchial washing for Amplicor PCR proved to be more useful than IS6110 based PCR in rapidly diagnosing smear negative pulmonary pulmoary tuberculosis in patients where tuberculosis was likely to be differential and rapid diagnosis was essential for optimal treatment.
Bronchoscopy ; Cough ; Diagnosis* ; Hemoptysis ; Humans ; Lung ; Mycobacterium ; Polymerase Chain Reaction* ; Sensitivity and Specificity ; Sputum ; Tuberculosis ; Tuberculosis, Pulmonary*

Objectives: ：An increasing number of people are affected by sleep problems every year. The current study presents findings from experiments that utilize a mobile application-based cognitive-behavioral treatment for insomnia (CBT-I). Methods: ：Our application aims to alleviate insomnia symptoms by providing real-time and direct interventions in people’s daily lives. We recruited 50 participants to test the effectiveness of the app via a six-week-long prospective experiment. Results: ：We find that insomnia symptoms are reduced significantly for both the treatment group, who used the app, and the control group, who watched educational videos [F(2,39)=60.82, p<0.001]. Sleep efficiency improved more quickly in the treatment group than in the control group. Participants who followed higher compliance to the intervention reduced their wake after sleep onset (WASO) time more substantially. Conclusion ：Our results suggest that app-based CBT-I interventions may have additional benefits for enhancing objective sleep quality, including sleep efficiency or WASO, compared to sleep hygiene education. The preliminary findings of the current research shed light on future mobile intervention apps’ design choices for insomnia.