1.Patient-Reported Outcome Measures of the Foot and Ankle
Journal of Korean Foot and Ankle Society 2022;26(1):1-8
The patient-reported outcome measures (PROMs) are important in assessing the patient’s overall health, lesion-specific outcomes, and condition-specific outcomes. PROMs are also known as “scoring systems” and are usually in questionnaires. There are almost a hundred different PROMs available in foot and ankle surgery. Each PROM has its merits, demerits, and validity. Selecting an appropriate PROM is important for adequately evaluating a patient’s health status. This article summarizes the most frequently used PROMs in the literature on foot and ankle surgery and presents the authors'recommendations.
2.Soluble ACE2 and TMPRSS2 Levels in the Serum of Asthmatic Patients
Ji-Hyang LEE ; Chae Eun LEE ; Youngsang YOO ; Eunyong SHIN ; Jin AN ; Seo Young PARK ; Woo-Jung SONG ; Hyouk-Soo KWON ; You Sook CHO ; Hee-Bom MOON ; Tae-Bum KIM
Journal of Korean Medical Science 2022;37(8):e65-
Background:
Angiotensin-converting enzyme 2 (ACE2) and transmembrane protease serine subtype 2 (TMPRSS2) are key proteins mediating viral entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Although gene expressions of ACE2 and TMPRSS2 have been analyzed in various organs and diseases, their soluble forms have been less studied, particularly in asthma. Therefore, we aimed to measure circulating ACE2 and TMPRSS2 in the serum of asthmatics and examine their relationship with clinical characteristics.
Methods:
Clinical data and serum samples of 400 participants were obtained from an asthma cohort. The soluble ACE2 (sACE2) and soluble TMPRSS2 (sTMPRSS2) level was measured by enzyme-linked immunosorbent assay, and the values underwent a natural log transformation. Associations between sACE2 and TMPRSS2 levels and various clinical variables were analyzed.
Results:
The patients younger than 70 years old, those with eosinophilic asthma (eosinophils ≥ 200 cells/µL), and inhaled corticosteroids (ICS) non-users were associated with higher levels of sACE2. Blood eosinophils and fractionated exhaled nitric oxide levels were positively correlated with serum ACE2. In contrast, lower levels of sTMPRSS2 were noted in patients below 70 years and those with eosinophilic asthma, while no association was noted between ICS use and sTMPRSS2. The level of sTMPRSS2 also differed according to sex, smoking history, coexisting hypertension, and forced expiratory volume in 1 second/forced vital capacity (FEV1/FVC) ratio. The proportion of sputum neutrophils was positively correlated with sTMPRSS2, while the FEV1/FVC ratio reported a negative correlation with sTMPRSS2.
Conclusion
The levels of ACE2 and TMPRSS2 were differently expressed according to age, ICS use, and several inflammatory markers. These findings suggest variable susceptibility and prognosis of SARS-CoV-2 infection among asthmatic patients.
3.NaHCO 3- and NaCl-Type Hot Springs Enhance the Secretion of Inflammatory Cytokine Induced by Polyinosinic-Polycytidylic Acid in HaCaT Cells
Sang Ho PARK ; Bom Yee JUNG ; Soo Young LEE ; Dong Soo YU ; So-Youn WOO ; Seong-Taek YUN ; Jong Tae LEE ; Jin-Wou KIM ; Young Bok LEE
Annals of Dermatology 2021;33(5):440-447
Background:
Hot springs have been traditionally used as an alternative treatment for a wide range of diseases, including rheumatoid arthritis, bronchial asthma, diabetes, hypertension, psoriasis and atopic dermatitis. However, the clinical effects and therapeutic mechanisms associated with hot springs remain poorly defined.
Objective:
The purpose of this study was to demonstrate the different effects of hot springs on cellular viability and secretion of inflammatory cytokines on keratinocyte in two geographically representative types of hot springs: NaHCO3 -type and NaCl-type, which are the most common types in South Korea.
Methods:
We performed WST-1, BrdU measurements, human inflammatory cytokine arrays and enzyme-linked immunosorbent assay in HaCaT cells stimulated with toll-like receptor 3 by polyinosinic-polycytidylic acid.
Results:
The interaction effects of cell viability and cell proliferation were not significantly different regardless of polyinosinic-polycytidylic acid stimulation and cultured hot springs type. Cytokine array and enzyme-linked immunosorbent assay analysis showed increased expression of inflammatory cytokines such as interleukin-6 and granulocyte-macrophage colony-stimulating factor by polyinosinic-polycytidylic acid stimulation, with expression levels differing according to hot springs hydrochemical composition. Cytokine reduction was not significant.
Conclusion
The effects and mechanisms of hot springs treatment in keratinocytes were partially elucidated.
4.Validation of Remote Collection of PatientReported Outcomes Using Patients’ Smartphones
Sung Jun PARK ; Julie J. KIM ; Bom Soo KIM
Clinics in Orthopedic Surgery 2021;13(1):117-122
Background:
The purpose of this study was to examine the between-mode equivalence and the relative efficiency of the 2 available modes of patient-reported outcome (PRO) data collection: a web-enabled touch screen tablet and a smartphone in a sample of patients who underwent foot and ankle orthopedic surgery.
Methods:
A total of 136 patients who visited the clinic after foot/ankle surgery participated in the study. All patients completed the PRO questionnaire set using tablets at the hospital. After 24 hours of completing the first PRO questionnaire, the patients completed the same PRO questionnaire at home using their personal smartphones. The outcomes were statistically compared, and the patients’ preferences were surveyed.
Results:
The intraclass correlation coefficients for comparing the results of PRO measurements between the 2 modes were 0.970 for the visual analog scale, 0.952 for the Foot Function Index, 0.959 for the foot and ankle outcome scale, and 0.957 for the patient’s satisfaction. Sixty-eight participants (58.6%) responded that they were able to answer the questionnaires with more honesty at home using their smartphones. Regarding the mode, 60 participants (48.1%) responded that they have no preference between the devices.
Conclusions
The results of this study showed the equivalence of the 2 modes of PRO data collection: web-enabled touch screen tablets and smartphones. Smartphones may be the preferred mode of PRO measurement, due to their easy accessibility, increased privacy, and the patients’ increased honesty in answering questionnaires.
5.NaHCO 3- and NaCl-Type Hot Springs Enhance the Secretion of Inflammatory Cytokine Induced by Polyinosinic-Polycytidylic Acid in HaCaT Cells
Sang Ho PARK ; Bom Yee JUNG ; Soo Young LEE ; Dong Soo YU ; So-Youn WOO ; Seong-Taek YUN ; Jong Tae LEE ; Jin-Wou KIM ; Young Bok LEE
Annals of Dermatology 2021;33(5):440-447
Background:
Hot springs have been traditionally used as an alternative treatment for a wide range of diseases, including rheumatoid arthritis, bronchial asthma, diabetes, hypertension, psoriasis and atopic dermatitis. However, the clinical effects and therapeutic mechanisms associated with hot springs remain poorly defined.
Objective:
The purpose of this study was to demonstrate the different effects of hot springs on cellular viability and secretion of inflammatory cytokines on keratinocyte in two geographically representative types of hot springs: NaHCO3 -type and NaCl-type, which are the most common types in South Korea.
Methods:
We performed WST-1, BrdU measurements, human inflammatory cytokine arrays and enzyme-linked immunosorbent assay in HaCaT cells stimulated with toll-like receptor 3 by polyinosinic-polycytidylic acid.
Results:
The interaction effects of cell viability and cell proliferation were not significantly different regardless of polyinosinic-polycytidylic acid stimulation and cultured hot springs type. Cytokine array and enzyme-linked immunosorbent assay analysis showed increased expression of inflammatory cytokines such as interleukin-6 and granulocyte-macrophage colony-stimulating factor by polyinosinic-polycytidylic acid stimulation, with expression levels differing according to hot springs hydrochemical composition. Cytokine reduction was not significant.
Conclusion
The effects and mechanisms of hot springs treatment in keratinocytes were partially elucidated.
7.Evaluation of Drug-Induced Liver Injury Developed During Hospitalization Using Electronic Health Record (EHR)-Based Algorithm
Yewon KANG ; Sae Hoon KIM ; So Young PARK ; Bo Young PARK ; Ji Hyang LEE ; Jin AN ; Ha Kyeong WON ; Woo Jung SONG ; Hyouk Soo KWON ; You Sook CHO ; Hee Bom MOON ; Ju Hyun SHIM ; Min Suk YANG ; Tae Bum KIM
Allergy, Asthma & Immunology Research 2020;12(3):430-442
PURPOSE: The incidence of drug-induced liver injury (DILI) has been increasing; however, few algorithms are available to identify DILI in electronic health records (EHRs). We aimed to identify and evaluate DILI with an appropriate screening algorithm.METHODS: We collected data from 3 university hospitals between June 2015 and May 2016 using our newly developed algorithm for identifying DILI. Among patients with alanine transferase (ALT) ≤ 120 IU/L and total bilirubin (TB) ≤ 2.4 mg/dL in blood test results within 48 hours of admission, those who either had 1) ALT > 120 IU/L and TB > 2.4 mg/dL or 2) ALT > 200 IU/L at least once during hospitalization were identified. After excluding patients with liver disease-related diagnosis at discharge, medical records were retrospectively reviewed to evaluate epidemiological characteristics of DILI.RESULTS: The total number of inpatients was 256,598, of whom 1,100 (0.43%) were selected by the algorithm as suspected DILI. Subsequently, 365 cases (0.14% of total inpatients, 95% confidence interval, 0.13–0.16) were identified as DILI, yielding a positive predictive value of 33.1%. Antibiotics (n = 214, 47.2%) were the major class of causative drug followed by chemotherapeutic agents (n = 87, 19.2%). The most common causative drug was piperacillin-tazobactam (n = 38, 8.4%); the incidence of DILI by individual agent was highest for methotrexate (19.4 cases/1,000 patients administered the drug). Common reasons for excluding suspected DILI cases were ischemic hepatitis and postoperative liver dysfunction.CONCLUSIONS: Using our EHR-based algorithm, we identified that approximately 0.14% of patients developed DILI during hospitalization. Further studies are needed to modify criteria for more accurate identification of DILI.
Alanine
;
Anti-Bacterial Agents
;
Bilirubin
;
Diagnosis
;
Drug-Induced Liver Injury
;
Drug-Related Side Effects and Adverse Reactions
;
Electronic Health Records
;
Hematologic Tests
;
Hepatitis
;
Hospitalization
;
Hospitals, University
;
Humans
;
Incidence
;
Inpatients
;
Liver
;
Liver Diseases
;
Mass Screening
;
Medical Records
;
Methotrexate
;
Pharmacoepidemiology
;
Retrospective Studies
;
Transferases
9.Preventive effect of a 18-year water fluoridation program for dental caries in a rural area of Korea
Ji-Soo KIM ; Min-Ji BYON ; Eun-Joo JUN ; Seung-Hwa JEONG ; Jin-Bom KIM
Journal of Korean Academy of Oral Health 2020;44(4):234-239
Objectives:
The water fluoridation program in Hapcheon township area has been implemented since 2000. This study aimed to evaluate the caries-preventive effect of water fluoridation on permanent teeth after implementation of an 18-year community water fluoridation program in a suburban area.
Methods:
A survey was conducted in 2018 with 359 subjects, aged 8, 10, and 12 years, residing in the Hapcheon township area. In this prospective cohort study, the data on caries prevalence obtained from 671 subjects, aged 8, 10, and 12 years, in 2000, when the community water fluoridation program was initiated in the township, were used as a cohort to evaluate the caries-preventive effect after 18 years. The caries-preventive effect of community water fluoridation on permanent teeth was estimated by comparison of the adjusted DMFT scores between the program and the control group, and between the pre- and post-program data after 18 years. The confounding factor, mean number of fissure-sealed teeth, was adjusted to estimate the caries-preventive effect of fluoridation on permanent teeth.
Results:
Based on the results of the surveys conducted in Hapcheon-eup in 2000 and 2018, the mean number of fissure-sealed permanent teeth was 2.24 in 2000 and 1.38 in 2018. The mean DMFT scores of subjects aged 8, 10, and 12 years in 2018, adjusted for fissure-sealed permanent teeth in the fluoridated area, were significantly lower than those reported by the 2018 Korea National Children’s Oral Health Survey. In addition, the mean values of the adjusted DMFT scores of subjects aged 8, 10, and 12 years in 2018, after the 18-year fluoridation program, were significantly lower than those reported in 2000, the year the fluoridation program was initiated.
Conclusions
Community water fluoridation has a high caries-reducing effect; thus, the reintroduction of water fluoridation program is desirable to prevent dental caries.
10.Risk factors related to periodontal health of adolescents
Ji-Soo KIM ; Se-Yeon KIM ; Min-Ji BYON ; Eun-Joo JUN ; Seung-Hwa JEONG ; Jin-Bom KIM
Journal of Korean Academy of Oral Health 2020;44(3):144-150
Objectives:
The purpose of this study was to investigate the risk factors related to periodontal health in middle school and high school adolescents.
Methods:
This study was conducted using data from the Sixth Korean National Health and Nutrition Examination Survey (KNHANES, 2013-2015). Among the 22,948 participants in the Sixth KNHANES, 1,222 participants (aged 12-18 years) who completed the systemic and oral health examinations and questionnaires were included in this study. Independent variables related to demographic socioeconomic status and oral health-related behaviors were the following: age, gender, household income, frequency of daily toothbrushing, smoking, alcohol drinking, annual dental visit, and periodontal treatment. The dependent variables were the prevalence of gingival bleeding or calculus and the number of sextants with gingival bleeding or calculus.
Results:
Among the total participants, 34.1% were diagnosed with prevalence of gingival bleeding or calculus, and periodontal health was found to be at its worst at 17 years of age (41.6% of participants). Moreover, household income, alcohol drinking, annual dental visits, and frequency of daily toothbrushing were related to prevalence and the number of sextants with gingival bleeding or calculus. The adjusted odds ratio (aOR) for prevalence of gingival bleeding or calculus by alcohol consumption, toothbrushing less than twice per day, and number of DMFT were 5.00 (95% CI: 2.24-11.18), 2.21 (95% CI: 1.21-4.04), and 1.09 (95% CI: 1.02-1.17), respectively.
Conclusions
To prevent periodontal disease among adolescents, it is necessary to improve oral health-related behavior and its associated factors and continuous oral health education.

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