1.Prediction of Unilateral Vocal Cord Paralysis Patients Through Machine Learning Analysis of Acoustic Parameters: A Preliminary Study
Seungtae KANG ; Su Na PARK ; Ji-Wan HA ; Ki-Su PARK ; Jiho LEE ; Janghyeok YOON ; Gil-Jin JANG ; GilJoon LEE
Journal of the Korean Society of Laryngology Phoniatrics and Logopedics 2024;35(1):24-29
Background and Objectives:
The purpose of this study is to evaluate value of diagnostic tool for vocal cord palsy utilizing artificial intelligence without laryngoscopeMaterials and Method A dataset consisting of recordings from patients with unilateral vocal cord paralysis (n=54) as well as normal individuals (n=163). The dataset included prolonged pronunciations of the vowels /ah/, /u/, /i/, and vocal cord data from paralyzed patients. Various acoustic parameters such as Mel-frequency cepstral coefficients, jitter, shimmer, harmonics-to-noise ratio, and fundamental frequency statistics were analyzed. The classification of vocal cord paralysis encompassed paralysis status, paralysis degree, and paralysis location. The deep learning model employed the leave-one-out method, and the feature set with the highest performance was selected using the following methods.
Results:
Vocal Cord Paralysis Classifier: The classifier accurately distinguished normal voice from vocal cord paralysis, achieving an accuracy and F1 score of 1.0. Paralysis Location Classifier: The classifier accurately differentiated between median and paramedian vocal cord paralysis, achieving an accuracy and micro F1 score of 1.0. Breathiness Degree Classifier: The classifier achieved an accuracy of 0.795 and a mean absolute error of 0.2857 in distinguishing different degrees of breathiness.
Conclusion
Although the small sample size raises concerns of potential overfitting, this preliminary study highlights distinctive acoustic features in cases of unilateral vocal fold paralysis compared to those of normal individuals. These findings suggest the feasibility of determining the presence, degree, and location of paralysis through the utilization of acoustic parameters. Further research is warranted to validate and expand upon these results.
2.Association between Smoking and Symptoms of Late-Onset Hypogonadism in Korean Men
Seon Su JANG ; Yoon Jeong CHO ; Hana MOON ; Hyun Ji KIM ; Geon Ho LEE ; Yun-A KIM
Korean Journal of Family Practice 2024;14(1):11-18
Background:
Late-onset hypogonadism (LOH) is associated with reduced testosterone levels and an increase in various physical, mental, and emotional changes in men with age. Several lifestyle factors, including smoking, are reported to be related to LOH; however, very few studies have sufficiently investigated the relationships between smoking and the symptoms of LOH. This study aimed to use the Androgen Deficiency in Aging Males (ADAM) questionnaire to assess the associations between smoking and LOH symptoms in Korean men.
Methods:
Men who underwent medical check-ups and transrectal ultrasonography at a university hospital between January 1, 2018 and March 31, 2021 (n=793) were included in this study. Multiple logistic regression was used to assess the risk of LOH symptoms among non-smokers, exsmokers, and current smokers, with adjustments for age, body mass index, alcohol consumption, and exercise and education levels.
Results:
There were significant correlations between LOH symptoms, as assessed using the ADAM questionnaire, and smoking status. The results of the multivariate logistic regression analysis adjusted for confounding factors indicated that the risk of LOH symptoms was higher in the ex-smokers (odds ratio, 2.446; 95% confidential interval, 1.511–3.962) and current smokers (odds ratio, 6.664; 95% confidential interval, 3.485–12.74) groups.
Conclusion
These results indicate a positive correlation between smoking and LOH symptoms in Korean men. Nevertheless, large-scale studies are required to further validate these findings.
3.The impact of severe depression on the survival of older patients with end-stage kidney disease
You Hyun JEON ; Jeong-Hoon LIM ; Yena JEON ; Yu-Kyung CHUNG ; Yon Su KIM ; Shin-Wook KANG ; Chul Woo YANG ; Nam-Ho KIM ; Hee-Yeon JUNG ; Ji-Young CHOI ; Sun-Hee PARK ; Chan-Duck KIM ; Yong-Lim KIM ; Jang-Hee CHO
Kidney Research and Clinical Practice 2024;43(6):818-828
Incidence of depression increases in patients with end-stage kidney disease (ESKD). We evaluated the association between depression and mortality among older patients with ESKD, which has not been studied previously. Methods: This nationwide prospective cohort study included 487 patients with ESKD aged >65 years, who were categorized into minimal, mild-to-moderate, and severe depression groups based on their Beck Depression Inventory-II (BDI-II) scores. Predisposing factors for high BDI-II scores and the association between the scores and survival were analyzed. Results: The severe depression group showed a higher modified Charlson comorbidity index value and lower serum albumin, phosphate, and uric acid levels than the other depression groups. The Kaplan-Meier curve revealed a significantly lower survival in the severe depression group than in the minimal and mild-to-moderate depression groups (p = 0.011). Multivariate Cox regression analysis confirmed that severe depression was an independent risk factor for mortality in the study cohort (hazard ratio, 1.39; 95% confidence interval, 1.01–1.91; p = 0.041). Additionally, BDI-II scores were associated with modified Charlson comorbidity index (p = 0.009) and serum albumin level (p = 0.004) in multivariate linear regression. Among the three depressive symptoms, higher somatic symptom scores were associated with increased mortality. Conclusion: Severe depression among older patients with ESKD increases mortality compared with minimal or mild-to-moderate depression, and patients with concomitant somatic symptoms require careful management of their comorbidities and nutritional status.
4.Association between Smoking and Symptoms of Late-Onset Hypogonadism in Korean Men
Seon Su JANG ; Yoon Jeong CHO ; Hana MOON ; Hyun Ji KIM ; Geon Ho LEE ; Yun-A KIM
Korean Journal of Family Practice 2024;14(1):11-18
Background:
Late-onset hypogonadism (LOH) is associated with reduced testosterone levels and an increase in various physical, mental, and emotional changes in men with age. Several lifestyle factors, including smoking, are reported to be related to LOH; however, very few studies have sufficiently investigated the relationships between smoking and the symptoms of LOH. This study aimed to use the Androgen Deficiency in Aging Males (ADAM) questionnaire to assess the associations between smoking and LOH symptoms in Korean men.
Methods:
Men who underwent medical check-ups and transrectal ultrasonography at a university hospital between January 1, 2018 and March 31, 2021 (n=793) were included in this study. Multiple logistic regression was used to assess the risk of LOH symptoms among non-smokers, exsmokers, and current smokers, with adjustments for age, body mass index, alcohol consumption, and exercise and education levels.
Results:
There were significant correlations between LOH symptoms, as assessed using the ADAM questionnaire, and smoking status. The results of the multivariate logistic regression analysis adjusted for confounding factors indicated that the risk of LOH symptoms was higher in the ex-smokers (odds ratio, 2.446; 95% confidential interval, 1.511–3.962) and current smokers (odds ratio, 6.664; 95% confidential interval, 3.485–12.74) groups.
Conclusion
These results indicate a positive correlation between smoking and LOH symptoms in Korean men. Nevertheless, large-scale studies are required to further validate these findings.
5.The impact of severe depression on the survival of older patients with end-stage kidney disease
You Hyun JEON ; Jeong-Hoon LIM ; Yena JEON ; Yu-Kyung CHUNG ; Yon Su KIM ; Shin-Wook KANG ; Chul Woo YANG ; Nam-Ho KIM ; Hee-Yeon JUNG ; Ji-Young CHOI ; Sun-Hee PARK ; Chan-Duck KIM ; Yong-Lim KIM ; Jang-Hee CHO
Kidney Research and Clinical Practice 2024;43(6):818-828
Incidence of depression increases in patients with end-stage kidney disease (ESKD). We evaluated the association between depression and mortality among older patients with ESKD, which has not been studied previously. Methods: This nationwide prospective cohort study included 487 patients with ESKD aged >65 years, who were categorized into minimal, mild-to-moderate, and severe depression groups based on their Beck Depression Inventory-II (BDI-II) scores. Predisposing factors for high BDI-II scores and the association between the scores and survival were analyzed. Results: The severe depression group showed a higher modified Charlson comorbidity index value and lower serum albumin, phosphate, and uric acid levels than the other depression groups. The Kaplan-Meier curve revealed a significantly lower survival in the severe depression group than in the minimal and mild-to-moderate depression groups (p = 0.011). Multivariate Cox regression analysis confirmed that severe depression was an independent risk factor for mortality in the study cohort (hazard ratio, 1.39; 95% confidence interval, 1.01–1.91; p = 0.041). Additionally, BDI-II scores were associated with modified Charlson comorbidity index (p = 0.009) and serum albumin level (p = 0.004) in multivariate linear regression. Among the three depressive symptoms, higher somatic symptom scores were associated with increased mortality. Conclusion: Severe depression among older patients with ESKD increases mortality compared with minimal or mild-to-moderate depression, and patients with concomitant somatic symptoms require careful management of their comorbidities and nutritional status.
6.Association between Smoking and Symptoms of Late-Onset Hypogonadism in Korean Men
Seon Su JANG ; Yoon Jeong CHO ; Hana MOON ; Hyun Ji KIM ; Geon Ho LEE ; Yun-A KIM
Korean Journal of Family Practice 2024;14(1):11-18
Background:
Late-onset hypogonadism (LOH) is associated with reduced testosterone levels and an increase in various physical, mental, and emotional changes in men with age. Several lifestyle factors, including smoking, are reported to be related to LOH; however, very few studies have sufficiently investigated the relationships between smoking and the symptoms of LOH. This study aimed to use the Androgen Deficiency in Aging Males (ADAM) questionnaire to assess the associations between smoking and LOH symptoms in Korean men.
Methods:
Men who underwent medical check-ups and transrectal ultrasonography at a university hospital between January 1, 2018 and March 31, 2021 (n=793) were included in this study. Multiple logistic regression was used to assess the risk of LOH symptoms among non-smokers, exsmokers, and current smokers, with adjustments for age, body mass index, alcohol consumption, and exercise and education levels.
Results:
There were significant correlations between LOH symptoms, as assessed using the ADAM questionnaire, and smoking status. The results of the multivariate logistic regression analysis adjusted for confounding factors indicated that the risk of LOH symptoms was higher in the ex-smokers (odds ratio, 2.446; 95% confidential interval, 1.511–3.962) and current smokers (odds ratio, 6.664; 95% confidential interval, 3.485–12.74) groups.
Conclusion
These results indicate a positive correlation between smoking and LOH symptoms in Korean men. Nevertheless, large-scale studies are required to further validate these findings.
7.Garre’s osteomyelitis of the mandible managed by nonsurgical reendodontic treatment
Heegyun KIM ; Jiyoung KWON ; Hyun-Jung KIM ; Soram OH ; Duck-Su KIM ; Ji-Hyun JANG
Restorative Dentistry & Endodontics 2024;49(2):e13-
Chronic osteomyelitis with proliferative periostitis, known as Garre’s osteomyelitis, is a type of osteomyelitis characterized by a distinctive gross thickening of the periosteum of bones. Peripheral reactive bone formation can be caused by mild irritation or infection. Garre’s osteomyelitis is usually diagnosed in children and young adults, and the mandible is more affected than the maxilla. The following is a case report of a 12-year-old female patient with Garre’s osteomyelitis of the mandible due to an infection of a root canal-treated tooth.Without surgical intervention, the patient’s symptoms were relieved through nonsurgical root canal re-treatment with long-term calcium hydroxide placement. A cone-beam computed tomography image obtained 6 months after treatment completion displayed complete healing of the periapical lesion and resolution of the peripheral reactive buccal bone. Due to the clinical features of Garre's osteomyelitis, which is characterized by thickening of the periosteum, it can be mistaken for other diseases such as fibrous dysplasia. It is important to correctly diagnose Garre's osteomyelitis based on its distinctive clinical features to avoid unnecessary surgical intervention, and it can lead to minimally invasive treatment options.
8.E-portfolio utilization in medical school clinical practice: assessing satisfaction and learning advantages
Mi Ryoung SONG ; Ji Hye YU ; Su Kyung LEE ; So Yong MOON ; Mi Ran KIM ; Jang Hoon LEE
Korean Journal of Medical Education 2024;36(3):327-333
Purpose:
This study aimed to investigate the difference in satisfaction and learning benefits between e-portfolios compared to paper portfolios during clinical practice in medical schools.
Methods:
Utilization of and satisfaction with e-portfolios among 40 third-year medical students in the medicine department of Ajou University School of Medicine was collected using an online survey in December 2020. The collected data were analyzed using descriptive statistics and an analysis of variance.
Results:
Students perceived that e-portfolios were highly beneficial for consistently documenting activities during clinical practice, when compared to paper-based portfolios (mean±standard deviation [SD]=2.60±1.22). However, the least rated aspect was that e-portfolios require less time than paper-based portfolios (mean±SD=1.80±1.14). Additionally, among the various clinical practice courses using e-portfolios, the highest satisfaction was observed with the fewest content items in the e-portfolio.
Conclusion
To maximize the potential benefits of e-portfolios, improvements in implementation and usability are essential. Additionally, for effective utilization of e-portfolios in clinical practice, it is necessary to clearly define students’ required competencies and ultimate goals, and structure content accordingly.
9.The impact of severe depression on the survival of older patients with end-stage kidney disease
You Hyun JEON ; Jeong-Hoon LIM ; Yena JEON ; Yu-Kyung CHUNG ; Yon Su KIM ; Shin-Wook KANG ; Chul Woo YANG ; Nam-Ho KIM ; Hee-Yeon JUNG ; Ji-Young CHOI ; Sun-Hee PARK ; Chan-Duck KIM ; Yong-Lim KIM ; Jang-Hee CHO
Kidney Research and Clinical Practice 2024;43(6):818-828
Incidence of depression increases in patients with end-stage kidney disease (ESKD). We evaluated the association between depression and mortality among older patients with ESKD, which has not been studied previously. Methods: This nationwide prospective cohort study included 487 patients with ESKD aged >65 years, who were categorized into minimal, mild-to-moderate, and severe depression groups based on their Beck Depression Inventory-II (BDI-II) scores. Predisposing factors for high BDI-II scores and the association between the scores and survival were analyzed. Results: The severe depression group showed a higher modified Charlson comorbidity index value and lower serum albumin, phosphate, and uric acid levels than the other depression groups. The Kaplan-Meier curve revealed a significantly lower survival in the severe depression group than in the minimal and mild-to-moderate depression groups (p = 0.011). Multivariate Cox regression analysis confirmed that severe depression was an independent risk factor for mortality in the study cohort (hazard ratio, 1.39; 95% confidence interval, 1.01–1.91; p = 0.041). Additionally, BDI-II scores were associated with modified Charlson comorbidity index (p = 0.009) and serum albumin level (p = 0.004) in multivariate linear regression. Among the three depressive symptoms, higher somatic symptom scores were associated with increased mortality. Conclusion: Severe depression among older patients with ESKD increases mortality compared with minimal or mild-to-moderate depression, and patients with concomitant somatic symptoms require careful management of their comorbidities and nutritional status.
10.Association between Smoking and Symptoms of Late-Onset Hypogonadism in Korean Men
Seon Su JANG ; Yoon Jeong CHO ; Hana MOON ; Hyun Ji KIM ; Geon Ho LEE ; Yun-A KIM
Korean Journal of Family Practice 2024;14(1):11-18
Background:
Late-onset hypogonadism (LOH) is associated with reduced testosterone levels and an increase in various physical, mental, and emotional changes in men with age. Several lifestyle factors, including smoking, are reported to be related to LOH; however, very few studies have sufficiently investigated the relationships between smoking and the symptoms of LOH. This study aimed to use the Androgen Deficiency in Aging Males (ADAM) questionnaire to assess the associations between smoking and LOH symptoms in Korean men.
Methods:
Men who underwent medical check-ups and transrectal ultrasonography at a university hospital between January 1, 2018 and March 31, 2021 (n=793) were included in this study. Multiple logistic regression was used to assess the risk of LOH symptoms among non-smokers, exsmokers, and current smokers, with adjustments for age, body mass index, alcohol consumption, and exercise and education levels.
Results:
There were significant correlations between LOH symptoms, as assessed using the ADAM questionnaire, and smoking status. The results of the multivariate logistic regression analysis adjusted for confounding factors indicated that the risk of LOH symptoms was higher in the ex-smokers (odds ratio, 2.446; 95% confidential interval, 1.511–3.962) and current smokers (odds ratio, 6.664; 95% confidential interval, 3.485–12.74) groups.
Conclusion
These results indicate a positive correlation between smoking and LOH symptoms in Korean men. Nevertheless, large-scale studies are required to further validate these findings.

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