Purpose: The purpose of our study is to examine early radiographic findings and clinical signs of failure of the microstructure surface HA-coated acetabular cup. Material and methods: This study included 41 revisions of 204 THA with hydroxyapatite-coated acetabular cup from April 1992 to November 1996. Radiolucent line around cups, change in the cup angle and osteolysis were evaluated in serial radiographs. Acetabular cup was defined as loosening if any movement occurred at the bone and socket interface by manual rotation and extension force intraoperatively or migration of more than 2 mm and change of the cup angle by more than 5 degrees in radiographs. Results: The radiolucent line was observed in 12 of the 41 hips at an average of 55.4 months postoperatively and was most commonly located in zone III. All of the 12 hips showing radiolucent lines were classified as loosening by radiographically in 8 cases and intraoperatively in 4 cases. Radiographic loosening occurred at an average of 28.8 months after the appearance of a radiolucent line. Inguinal pain was noted in 18 of the 19 cases revised for acetabular cup loosening. Conclusion: The most important radiographic finding for the early diagnosis of loosening was progressive radiolucent lines, which occurred most frequently in zone 3.
Acetabulum* ; Arthroplasty, Replacement, Hip ; Early Diagnosis ; Hip ; Osteolysis

OBJECTIVES: Since the report of the first confirmed case in Daegu on February 18, 2020, local transmission of coronavirus disease 2019 (COVID-19) in Korea has continued. In this study, we aimed to identify the pattern of local transmission of COVID-19 using mathematical modeling and predict the epidemic size and the timing of the end of the spread. METHODS: We modeled the COVID-19 outbreak in Korea by applying a mathematical model of transmission that factors in behavioral changes. We used the Korea Centers for Disease Control and Prevention data of daily confirmed cases in the country to estimate the nationwide and Daegu/Gyeongbuk area-specific transmission rates as well as behavioral change parameters using a least-squares method. RESULTS: The number of transmissions per infected patient was estimated to be about 10 times higher in the Daegu/Gyeongbuk area than the average of nationwide. Using these estimated parameters, our models predicts that about 13,800 cases will occur nationwide and 11,400 cases in the Daegu/Gyeongbuk area until mid-June. CONCLUSIONS We mathematically demonstrate that the relatively high per-capita rate of transmission and the low rate of changes in behavior have caused a large-scale transmission of COVID-19 in the Daegu/Gyeongbuk area in Korea. Since the outbreak is expected to continue until May, non-pharmaceutical interventions that can be sustained over the long term are required.

OBJECTIVES: Since the report of the first confirmed case in Daegu on February 18, 2020, local transmission of coronavirus disease 2019 (COVID-19) in Korea has continued. In this study, we aimed to identify the pattern of local transmission of COVID-19 using mathematical modeling and predict the epidemic size and the timing of the end of the spread. METHODS: We modeled the COVID-19 outbreak in Korea by applying a mathematical model of transmission that factors in behavioral changes. We used the Korea Centers for Disease Control and Prevention data of daily confirmed cases in the country to estimate the nationwide and Daegu/Gyeongbuk area-specific transmission rates as well as behavioral change parameters using a least-squares method. RESULTS: The number of transmissions per infected patient was estimated to be about 10 times higher in the Daegu/Gyeongbuk area than the average of nationwide. Using these estimated parameters, our models predicts that about 13,800 cases will occur nationwide and 11,400 cases in the Daegu/Gyeongbuk area until mid-June. CONCLUSIONS We mathematically demonstrate that the relatively high per-capita rate of transmission and the low rate of changes in behavior have caused a large-scale transmission of COVID-19 in the Daegu/Gyeongbuk area in Korea. Since the outbreak is expected to continue until May, non-pharmaceutical interventions that can be sustained over the long term are required.

Purpose: This study was conducted to deeply explore the work experiences of nurses in COVID-19 isolation wards. Methods: Data were collected through one-on-one in-depth interviews with 11 nurses working in COVID-19 isolation wards from November 3 to November 23, 2023. The data were analyzed using Braun and Clarke's inductive thematic analysis. Results: The study identified three categories, seven themes, and 16 sub-themes. The categories were: ‘the reality of unprepared COVID-19 isolation wards’, ‘the ongoing process of change and coordination’, and ‘experiencing confusion in the process of returning to normal’. A common experience among nurses was ‘confusion due to changes’. Initially, there was confusion caused by the unfamiliar environment and lack of a work manual. Subsequently, confusion arose due to changes in the direction of the COVID-19 response. Finally, they experienced confusion in the process of returning to normal life, continually facing uncertainty. Conclusion Strategies are needed to improve the work environment of nurses in isolation wards for future infectious diseases and pandemics. Allocating nursing staff considering infection control tasks and patient care demands, and addressing communication problems in isolation wards is necessary. Routine education on infection control and preparation for emerging infectious diseases should be implemented, and an operational manual for duties in isolation ward should be prepared. Additionally, promoting psychological support systems for disaster response personnel and developing policies to alleviate physical difficulties are needed.

Purpose: This study was conducted to deeply explore the work experiences of nurses in COVID-19 isolation wards. Methods: Data were collected through one-on-one in-depth interviews with 11 nurses working in COVID-19 isolation wards from November 3 to November 23, 2023. The data were analyzed using Braun and Clarke's inductive thematic analysis. Results: The study identified three categories, seven themes, and 16 sub-themes. The categories were: ‘the reality of unprepared COVID-19 isolation wards’, ‘the ongoing process of change and coordination’, and ‘experiencing confusion in the process of returning to normal’. A common experience among nurses was ‘confusion due to changes’. Initially, there was confusion caused by the unfamiliar environment and lack of a work manual. Subsequently, confusion arose due to changes in the direction of the COVID-19 response. Finally, they experienced confusion in the process of returning to normal life, continually facing uncertainty. Conclusion Strategies are needed to improve the work environment of nurses in isolation wards for future infectious diseases and pandemics. Allocating nursing staff considering infection control tasks and patient care demands, and addressing communication problems in isolation wards is necessary. Routine education on infection control and preparation for emerging infectious diseases should be implemented, and an operational manual for duties in isolation ward should be prepared. Additionally, promoting psychological support systems for disaster response personnel and developing policies to alleviate physical difficulties are needed.

Purpose: This study was conducted to deeply explore the work experiences of nurses in COVID-19 isolation wards. Methods: Data were collected through one-on-one in-depth interviews with 11 nurses working in COVID-19 isolation wards from November 3 to November 23, 2023. The data were analyzed using Braun and Clarke's inductive thematic analysis. Results: The study identified three categories, seven themes, and 16 sub-themes. The categories were: ‘the reality of unprepared COVID-19 isolation wards’, ‘the ongoing process of change and coordination’, and ‘experiencing confusion in the process of returning to normal’. A common experience among nurses was ‘confusion due to changes’. Initially, there was confusion caused by the unfamiliar environment and lack of a work manual. Subsequently, confusion arose due to changes in the direction of the COVID-19 response. Finally, they experienced confusion in the process of returning to normal life, continually facing uncertainty. Conclusion Strategies are needed to improve the work environment of nurses in isolation wards for future infectious diseases and pandemics. Allocating nursing staff considering infection control tasks and patient care demands, and addressing communication problems in isolation wards is necessary. Routine education on infection control and preparation for emerging infectious diseases should be implemented, and an operational manual for duties in isolation ward should be prepared. Additionally, promoting psychological support systems for disaster response personnel and developing policies to alleviate physical difficulties are needed.

Purpose: This study was conducted to deeply explore the work experiences of nurses in COVID-19 isolation wards. Methods: Data were collected through one-on-one in-depth interviews with 11 nurses working in COVID-19 isolation wards from November 3 to November 23, 2023. The data were analyzed using Braun and Clarke's inductive thematic analysis. Results: The study identified three categories, seven themes, and 16 sub-themes. The categories were: ‘the reality of unprepared COVID-19 isolation wards’, ‘the ongoing process of change and coordination’, and ‘experiencing confusion in the process of returning to normal’. A common experience among nurses was ‘confusion due to changes’. Initially, there was confusion caused by the unfamiliar environment and lack of a work manual. Subsequently, confusion arose due to changes in the direction of the COVID-19 response. Finally, they experienced confusion in the process of returning to normal life, continually facing uncertainty. Conclusion Strategies are needed to improve the work environment of nurses in isolation wards for future infectious diseases and pandemics. Allocating nursing staff considering infection control tasks and patient care demands, and addressing communication problems in isolation wards is necessary. Routine education on infection control and preparation for emerging infectious diseases should be implemented, and an operational manual for duties in isolation ward should be prepared. Additionally, promoting psychological support systems for disaster response personnel and developing policies to alleviate physical difficulties are needed.

Purpose: This study was undertaken to evaluate the health, nutritional status and metabolic syndrome risk according to the dietary pattern of adult single-person households, using information obtained from the Korea National Health and Nutrition Examination Survey (KNHANES). Methods: Data were collected from the 2013–2016 KNHANES, of adults aged 19–64 years, belonging to single-person households. Based on cluster analysis, the dietary patterns of subjects were classified into three groups. The dietary behavior factors, health-related factors, nutritional status, and prevalence of metabolic syndrome obtained from KNHANES questionnaires were compared according to the individual dietary pattern. The nutrient intake data of the subjects were calculated using the semi-food frequency questionnaire.Moreover, blood and physical measurement data of the subjects were analyzed to obtain the prevalence of metabolic syndromes. Results: The major dietary intakes of subjects were classified as ‘Rice and kimchi’, ‘Mixed’, and ‘Milk·dairy products and fruits’ patterns. Characteristics of subjects based on their dietary pattern, gender, age, and education level were significantly different. The ‘Milk and fruits’ pattern showed low frequency of skipping breakfast and eating out, and had higher intake of dietary supplements. Frequency of alcohol intake and smoking rates were highest in the ‘Mixed’ pattern. Maximum nutrient intake of fat, vitamin A, riboflavin, vitamin C, niacin, calcium, phosphorus, and potassium was obtained in the ‘Milk·dairy products and fruits’ pattern. According to dietary patterns adjusted for age and gender, the risk of metabolic syndrome was 0.380 times lower in the ‘Milk·dairy products and fruit’ pattern than in the ‘Rice and kimchi’ pattern. However, when adjusted for other confounding factors, no significant difference was obtained between dietary patterns for metabolic syndrome risk. Conclusion These results indicate that the health and nutritional status of a single-person household is possibly affected by the dietary intake of subjects.

No abstract available.
Infarction*

BACKGROUND AND PURPOSE: Negative findings on diffusion-weighted imaging (DWI) does not exclude the possibility of brainstem infarction, particularly in the acute stage of medullary lesion. Our aim was to investigate the false-negative rate of DWI in patients with acute lateral medullary infarction. METHODS: We applied DWI to 26 patients with a clinical diagnosis of lateral medullary infarction within 72 h of the onset. We assessed relationships between initial DWI findings and time-to-MRI (the time between onset of symptoms and initial DWI), number of clinical symptoms and signs, and final lesion volume. RESULTS: There were 8 cases (31%) of false negatives in the initial DWI results. The occurrence of false-negative DWI findings decreased significantly as the time-to-MRI increased (P=0.014). However, the false-negative rate was not significantly correlated with the number of clinical symptoms and signs or the final lesion volume. CONCLUSIONS: The diagnosis of lateral medullary infarction should not be ruled out on the basis of early negative DWI. To confirm the lesion, follow-up DWI or further MRI should be performed in cases with early negative DWI results
Brain Stem Infarctions ; Diagnosis ; Diffusion* ; Follow-Up Studies ; Humans ; Infarction* ; Magnetic Resonance Imaging