1.Group B Streptococcus Detection Rate and Clindamycin Resistance Among Reproductive-Age Women in Korea During 2003–2022
Areum SHIN ; Doo Ri KIM ; Ji-Hee SUNG ; Jinyoung YANG ; Suk-Joo CHOI ; Cheong-Rae ROH ; Tae Yeul KIM ; Hee Jae HUH ; Nam Yong LEE ; Soo-young OH ; Yae-Jean KIM
Journal of Korean Medical Science 2025;40(15):e29-
Background:
Group B Streptococcus (GBS) is one of the leading causes of neonatal earlyonset sepsis, resulting in high mortality and significant comorbidity. Intrapartum penicillin prophylaxis is recommended for pregnant women with GBS colonization to prevent vertical transmission. For pregnant women at high risk of anaphylaxis to penicillin, clindamycin is recommended only if the susceptibility of GBS isolates has been identified. We retrospectively examined the GBS detection rate and clindamycin resistance among Korean women of reproductive age over the last 20 years.
Methods:
Microbiologic studies using vaginal, vaginal–rectal or vaginal–perianal swabs from female patients 15–49 years of age during 2003–2022 were reviewed. Annual GBS detection rates and clindamycin resistance rates were calculated. The study period was divided into two periods (period 1, 2003–2015; period 2, 2016–2022) based on the introduction of universal culture-based GBS screening in our center in 2016. GBS detection rates and clindamycin resistance rates were compared between the periods using χ2 tests.
Results:
A total of 14,571 women were tested 16,879 times and GBS was isolated in 1,054 tests (6.2%), with 423 clindamycin-resistant isolates (40.1%). The GBS detection rate increased from 3.4% (301/8,869) in period 1 to 9.4% (2,753/8,010) in period 2 (P < 0.001). Even during period 1, the GBS detection rate was higher in 2009–2015 compared to 2003–2008 (P < 0.001). Clindamycin resistance rates have remained at similar levels since 2009, which were 39.5% (199/301) in period 1 and 40.2% (303/753) in period 2 (P = 0.833).
Conclusion
This study demonstrated that GBS detection rates in Korean women of reproductive age significantly increased almost three times during the twenty years of the study period, with a persistently high clindamycin resistance rate of up to 40%.
2.Group B Streptococcus Detection Rate and Clindamycin Resistance Among Reproductive-Age Women in Korea During 2003–2022
Areum SHIN ; Doo Ri KIM ; Ji-Hee SUNG ; Jinyoung YANG ; Suk-Joo CHOI ; Cheong-Rae ROH ; Tae Yeul KIM ; Hee Jae HUH ; Nam Yong LEE ; Soo-young OH ; Yae-Jean KIM
Journal of Korean Medical Science 2025;40(15):e29-
Background:
Group B Streptococcus (GBS) is one of the leading causes of neonatal earlyonset sepsis, resulting in high mortality and significant comorbidity. Intrapartum penicillin prophylaxis is recommended for pregnant women with GBS colonization to prevent vertical transmission. For pregnant women at high risk of anaphylaxis to penicillin, clindamycin is recommended only if the susceptibility of GBS isolates has been identified. We retrospectively examined the GBS detection rate and clindamycin resistance among Korean women of reproductive age over the last 20 years.
Methods:
Microbiologic studies using vaginal, vaginal–rectal or vaginal–perianal swabs from female patients 15–49 years of age during 2003–2022 were reviewed. Annual GBS detection rates and clindamycin resistance rates were calculated. The study period was divided into two periods (period 1, 2003–2015; period 2, 2016–2022) based on the introduction of universal culture-based GBS screening in our center in 2016. GBS detection rates and clindamycin resistance rates were compared between the periods using χ2 tests.
Results:
A total of 14,571 women were tested 16,879 times and GBS was isolated in 1,054 tests (6.2%), with 423 clindamycin-resistant isolates (40.1%). The GBS detection rate increased from 3.4% (301/8,869) in period 1 to 9.4% (2,753/8,010) in period 2 (P < 0.001). Even during period 1, the GBS detection rate was higher in 2009–2015 compared to 2003–2008 (P < 0.001). Clindamycin resistance rates have remained at similar levels since 2009, which were 39.5% (199/301) in period 1 and 40.2% (303/753) in period 2 (P = 0.833).
Conclusion
This study demonstrated that GBS detection rates in Korean women of reproductive age significantly increased almost three times during the twenty years of the study period, with a persistently high clindamycin resistance rate of up to 40%.
3.Study on the Necessity and Methodology for Enhancing Outpatient and Clinical Education in the Department of Radiology
Soo Buem CHO ; Jiwoon SEO ; Young Hwan KIM ; You Me KIM ; Dong Gyu NA ; Jieun ROH ; Kyung-Hyun DO ; Jung Hwan BAEK ; Hye Shin AHN ; Min Woo LEE ; Seunghyun LEE ; Seung Eun JUNG ; Woo Kyoung JEONG ; Hye Doo JEONG ; Bum Sang CHO ; Hwan Jun JAE ; Seon Hyeong CHOI ; Saebeom HUR ; Su Jin HONG ; Sung Il HWANG ; Auh Whan PARK ; Ji-hoon KIM
Journal of the Korean Society of Radiology 2025;86(1):199-200
4.Group B Streptococcus Detection Rate and Clindamycin Resistance Among Reproductive-Age Women in Korea During 2003–2022
Areum SHIN ; Doo Ri KIM ; Ji-Hee SUNG ; Jinyoung YANG ; Suk-Joo CHOI ; Cheong-Rae ROH ; Tae Yeul KIM ; Hee Jae HUH ; Nam Yong LEE ; Soo-young OH ; Yae-Jean KIM
Journal of Korean Medical Science 2025;40(15):e29-
Background:
Group B Streptococcus (GBS) is one of the leading causes of neonatal earlyonset sepsis, resulting in high mortality and significant comorbidity. Intrapartum penicillin prophylaxis is recommended for pregnant women with GBS colonization to prevent vertical transmission. For pregnant women at high risk of anaphylaxis to penicillin, clindamycin is recommended only if the susceptibility of GBS isolates has been identified. We retrospectively examined the GBS detection rate and clindamycin resistance among Korean women of reproductive age over the last 20 years.
Methods:
Microbiologic studies using vaginal, vaginal–rectal or vaginal–perianal swabs from female patients 15–49 years of age during 2003–2022 were reviewed. Annual GBS detection rates and clindamycin resistance rates were calculated. The study period was divided into two periods (period 1, 2003–2015; period 2, 2016–2022) based on the introduction of universal culture-based GBS screening in our center in 2016. GBS detection rates and clindamycin resistance rates were compared between the periods using χ2 tests.
Results:
A total of 14,571 women were tested 16,879 times and GBS was isolated in 1,054 tests (6.2%), with 423 clindamycin-resistant isolates (40.1%). The GBS detection rate increased from 3.4% (301/8,869) in period 1 to 9.4% (2,753/8,010) in period 2 (P < 0.001). Even during period 1, the GBS detection rate was higher in 2009–2015 compared to 2003–2008 (P < 0.001). Clindamycin resistance rates have remained at similar levels since 2009, which were 39.5% (199/301) in period 1 and 40.2% (303/753) in period 2 (P = 0.833).
Conclusion
This study demonstrated that GBS detection rates in Korean women of reproductive age significantly increased almost three times during the twenty years of the study period, with a persistently high clindamycin resistance rate of up to 40%.
5.Study on the Necessity and Methodology for Enhancing Outpatient and Clinical Education in the Department of Radiology
Soo Buem CHO ; Jiwoon SEO ; Young Hwan KIM ; You Me KIM ; Dong Gyu NA ; Jieun ROH ; Kyung-Hyun DO ; Jung Hwan BAEK ; Hye Shin AHN ; Min Woo LEE ; Seunghyun LEE ; Seung Eun JUNG ; Woo Kyoung JEONG ; Hye Doo JEONG ; Bum Sang CHO ; Hwan Jun JAE ; Seon Hyeong CHOI ; Saebeom HUR ; Su Jin HONG ; Sung Il HWANG ; Auh Whan PARK ; Ji-hoon KIM
Journal of the Korean Society of Radiology 2025;86(1):199-200
6.Group B Streptococcus Detection Rate and Clindamycin Resistance Among Reproductive-Age Women in Korea During 2003–2022
Areum SHIN ; Doo Ri KIM ; Ji-Hee SUNG ; Jinyoung YANG ; Suk-Joo CHOI ; Cheong-Rae ROH ; Tae Yeul KIM ; Hee Jae HUH ; Nam Yong LEE ; Soo-young OH ; Yae-Jean KIM
Journal of Korean Medical Science 2025;40(15):e29-
Background:
Group B Streptococcus (GBS) is one of the leading causes of neonatal earlyonset sepsis, resulting in high mortality and significant comorbidity. Intrapartum penicillin prophylaxis is recommended for pregnant women with GBS colonization to prevent vertical transmission. For pregnant women at high risk of anaphylaxis to penicillin, clindamycin is recommended only if the susceptibility of GBS isolates has been identified. We retrospectively examined the GBS detection rate and clindamycin resistance among Korean women of reproductive age over the last 20 years.
Methods:
Microbiologic studies using vaginal, vaginal–rectal or vaginal–perianal swabs from female patients 15–49 years of age during 2003–2022 were reviewed. Annual GBS detection rates and clindamycin resistance rates were calculated. The study period was divided into two periods (period 1, 2003–2015; period 2, 2016–2022) based on the introduction of universal culture-based GBS screening in our center in 2016. GBS detection rates and clindamycin resistance rates were compared between the periods using χ2 tests.
Results:
A total of 14,571 women were tested 16,879 times and GBS was isolated in 1,054 tests (6.2%), with 423 clindamycin-resistant isolates (40.1%). The GBS detection rate increased from 3.4% (301/8,869) in period 1 to 9.4% (2,753/8,010) in period 2 (P < 0.001). Even during period 1, the GBS detection rate was higher in 2009–2015 compared to 2003–2008 (P < 0.001). Clindamycin resistance rates have remained at similar levels since 2009, which were 39.5% (199/301) in period 1 and 40.2% (303/753) in period 2 (P = 0.833).
Conclusion
This study demonstrated that GBS detection rates in Korean women of reproductive age significantly increased almost three times during the twenty years of the study period, with a persistently high clindamycin resistance rate of up to 40%.
7.Study on the Necessity and Methodology for Enhancing Outpatient and Clinical Education in the Department of Radiology
Soo Buem CHO ; Jiwoon SEO ; Young Hwan KIM ; You Me KIM ; Dong Gyu NA ; Jieun ROH ; Kyung-Hyun DO ; Jung Hwan BAEK ; Hye Shin AHN ; Min Woo LEE ; Seunghyun LEE ; Seung Eun JUNG ; Woo Kyoung JEONG ; Hye Doo JEONG ; Bum Sang CHO ; Hwan Jun JAE ; Seon Hyeong CHOI ; Saebeom HUR ; Su Jin HONG ; Sung Il HWANG ; Auh Whan PARK ; Ji-hoon KIM
Journal of the Korean Society of Radiology 2025;86(1):199-200
8.Clinical Analysis of Sinonasal Malignant Lymphoma: Treatment Modalities and Prognostic Factors
Seo Young KIM ; Jeong Kyou KIM ; Young Chul KIM ; Joonsik YOON ; Soo Min KIM ; Jeeyeon PARK ; Doo Hyun SONG ; Hyun Jik KIM
Korean Journal of Otolaryngology - Head and Neck Surgery 2024;67(9):482-487
Background and Objectives:
Sinonasal malignant lymphoma is rare and aggressive. Its low incidence has made detailed studies on epidemiology, survival, and consensus treatment modalities a challenge, and also has limited developing standardized protocols for diagnosis and management. This study analyzes the clinical factors of patients diagnosed with sinonasal malignant lymphoma and their treatment modalities to understand therapeutic outcome and prognostic factors.Subjects and Method The medical records of patients diagnosed between 2011 and 2020 as sinonasal (SN) malignant lymphoma (extranodal NK/T cell lymphoma [ENKTL]/diffuse large B cell lymphoma [DLBCL]) in Seoul national university hospital were retrospectively reviewed.
Results:
A total 42 patients were included in the study. Of those, 30 patients were SN-ENKTL, 12 patients were SN-DLBCL. The mean age of SN-DLBCL and SN-DLBCL groups was 52.8±14.4, 60.8±12.4, respectively. The main chief complaint was nasal obstruction (54%). Approximately 75% were diagnosed as stage II (Ann-Arbor staging system) and most of the patients received multi-agent chemotherapy or chemoradiotherapy. The 3-year overall survival rate for SN-DLBCL and SN-DLBCL groups was roughly 90%, 88.9%, respectively and the average of disease-free survival period was approximately 41.1 and 22.1 months, respectively, after initiation of treatment.
Conclusion
We found that sinonasal malignant lymphoma is highly responsive to chemo or chemoradiotherapy. Early accurate diagnosis is important as early-stage patients receiving therapy may benefit from chemo or chemoradiotherapy. Our clinical data showed that in ambiguous situations, wide excision should be considered for diagnosis.
9.Sex Differences in Cardiovascular Complications of Type 2 Diabetes
Journal of Korean Diabetes 2024;25(4):203-210
The estimated global prevalence of diabetes is similar for women and men (8.4% vs. 8.9%). Even among people with type 2 diabetes (T2D), there are known gender differences in the impact of the disease. The relative risk of cardiovascular (CV) complications between people with and without T2D is higher in women than in men. In contrast, lifestyle interventions and bariatric surgery appear to have similar effects regardless of gender. Importantly, not only is the excess risk of coronary artery disease associated disproportionately highly with diabetes, but the clinical presentation of coronary artery disease differs between women and men. Women more often present with atypical symptoms of angina, which can hinder accurate diagnosis and early treatment, potentially leading to disease progression and subsequent myocardial infarction. Whether these gender differences also exist in CV disease remains uncertain. Evidence that men and women experience diabetes-related conditions differently suggests that further research is needed to clarify the biological, behavioral, or social mechanisms involved. Meanwhile, the menopausal transition in women is a time of accelerated cardiovascular disease risk. Endocrine and metabolic changes are closely linked during the menopausal transition. This review highlights key differences in diabetes-related CV complications by gender.
10.Relationship between Change in Physical Activity and Risk of Metabolic Syndrome: A Prospective Cohort Study
Doo Yong PARK ; On LEE ; Yong Ho LEE ; Chung Gun LEE ; Yeon Soo KIM
Journal of Obesity & Metabolic Syndrome 2024;33(2):121-132
Background:
This study investigates the relationship between changes in physical activity levels and risk of metabolic syndrome.
Methods:
This study examined 1,686 adults aged 40 to 69 years from a community-based cohort study with complete 1st to 4th follow-up data between 2011 and 2020. Changes in physical activity were evaluated through baseline and follow-up surveys using physical activity questionnaires. Metabolic syndrome was diagnosed according to the International Diabetes Federation criteria. A survival analysis was conducted using a multivariate extended Cox regression model with a significance level set at P<0.05.
Results:
Participants were divided into groups according to physical activity levels. The newly inactive group (vigorous physical activity ≤150 minutes at first follow-up) had a 36% increase in the hazard ratio (HR) for metabolic syndrome compared with the consistently inactive group (≤150 minutes at both baseline and first followup) (HR, 1.36; 95% confidence interval [CI], 1.04 to 1.79). The newly active group (walking ≤420 minutes per week at baseline and >420 minutes per week at first follow-up) had a 25% decrease in the HR for metabolic syndrome compared with the consistently inactive group (walking ≤420 minutes per week at both baseline and first follow-up) (HR, 0.75; 95% CI, 0.57 to 0.98).
Conclusion
Changes in physical activity levels are associated with risk of metabolic syndrome. These results provide important insights for future investigations into the link between physical activity changes and disease occurrence.

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