1.Management of Genitourinary Syndrome of Menopause in Korean Breast Cancer Survivors by Fractional CO2 Laser Treatment
Youn-Jee CHUNG ; Minji KO ; Jung Yoon PARK ; Mee-Ran KIM ; Jae-Yen SONG
Yonsei Medical Journal 2026;67(1):42-47
Purpose:
Many breast cancer patients experience genitourinary syndrome of menopause (GSM) symptoms. Concerns about systemic absorption limit the use of local estrogen therapy, and clinicians are often hesitant to prescribe it to breast cancer survivors.Therefore, other treatment options are essential. The aim of this study was to examine the safety and effectiveness of fractional CO2 laser treatment in breast cancer survivors experiencing GSM.
Materials and Methods:
Each woman received three fractional CO2 treatments at 4-week intervals between sessions: baseline (V1), 4-week follow-up (V2), 8-week follow-up (V3), and a final follow-up at 12 weeks (V4). Breast cancer survivors who had one or more symptoms related to GSM qualified for inclusion in this study. Severity of symptoms was assessed with a visual analog scale (VAS) at baseline and every follow-up visit. We also measured GSM objectively using the vaginal health index score (VHIS) at every visit. At V4, patients evaluated their satisfaction with laser therapy using a 5-point Likert scale.
Results:
Twenty-four women were included in the study. Almost all symptoms showed improvement based on mean VAS score after treatment. Vaginal dryness and urgency improved after the second treatment. After completion of all treatments, all symptoms except frequency showed improvement. VHIS increased significantly after completion of laser treatment (8.5±3.1 at baseline vs. 16.2±2.9 at V4; p<0.001).
Conclusion
Fractional CO2 laser treatment appears to be an effective and safe method in breast cancer survivors with GSM.
2.A Comparative Study of Three National Surveys on Biliary Atresia by the Korean Association of Pediatric Surgeons
Yeon Jun JEONG ; Dayoung KO ; Hyunhee KWON ; Ki Hoon KIM ; Dae Yeon KIM ; Soo-Hong KIM ; Wontae KIM ; Hae-Young KIM ; Hyun Young KIM ; Seong Chul KIM ; Younghyun NA ; Jung-Man NAMGOONG ; So Hyun NAM ; Junbeom PARK ; Jinyoung PARK ; Tae-Jun PARK ; Jeong-Meen SEO ; Ji-Young SUL ; Joonhyuk SON ; Hyun Beak SHIN ; Joohyun SIM ; Soo Min AHN ; Hee Beom YANG ; Jung-Tak OH ; Chaeyoun OH ; Joong Kee YOUN ; Sanghoon LEE ; Ju Yeon LEE ; Kyong IHN ; Hye Kyung CHANG ; Eunyoung JUNG ; Jae Hee CHUNG ; Yu Jeong CHO ; Yun Mee CHOE ; Soo Jin Na CHOI ; Seok Joo HAN ; In Geol HO ; Ji-Won HAN
Advances in Pediatric Surgery 2025;31(2):47-58
Purpose:
Biliary atresia (BA) is a rare but progressive cholangiopathy and the leading cause of pediatric liver transplantation worldwide. The Korean Association of Pediatric Surgeons (KAPS) has conducted three national surveys (2001, 2011, and 2023) to assess long-term trends in the diagnosis, treatment, and outcomes of BA. This study provides a comparative analysis of the 2nd and 3rd national surveys, with reference to selected findings from the 1st survey.
Methods:
This study included 453 patients from the 3rd national survey (2011–2021) and 435 patients from the 2nd survey (2001–2010), all of whom underwent Kasai portoenterostomy. Data were collected via electronic case report forms from pediatric surgical centers nationwide. Comparisons were made regarding demographics, clinical features, diagnostic patterns, operative details, follow-up outcomes, and survival. Kaplan–Meier analysis was used to evaluate long-term survival.
Results:
The mean number of BA patients per year remained stable between surveys (43.5 in the 2nd, 41.18 in the 3rd), though centralization of care increased, with 61.5% of cases managed by two major institutions in the 3rd survey. The median age at surgery decreased, and the use of preoperative imaging (especially magnetic resonance cholangiopancreatography) increased. The 10-year native liver survival rate declined from 59.8% to 53.7%, while overall 10-year survival improved slightly (92.9% to 93.2%). Postoperative complications, such as cholangitis and liver failure, persisted but were better categorized. The 3rd survey also reported improved mortality (4.9%) and reduced follow-up loss (11.5%) compared to the 2nd survey.
Conclusion
While overall survival after Kasai operation has remained high and even improved, native liver survival has slightly declined. The findings reflect earlier diagnosis, more consistent diagnostic imaging, and increasing centralization of care. These trends underscore the importance of long-term nationwide data collection in guiding future strategies for BA management in Korea.
3.Comparative Analysis of National Surveys of Intestinal Atresia: A Retrospective Study by the Korean Association of Pediatric Surgeons
Jinyoung PARK ; Dayoung KO ; Eun-jung KOO ; Hyunhee KWON ; Ki Hoon KIM ; Dae Yeon KIM ; Seong Chul KIM ; Soo-Hong KIM ; Wontae KIM ; HaeYoung KIM ; Hyun-Young KIM ; So Hyun NAM ; Jung-Man NAMGOONG ; Junbeom PARK ; Taejin PARK ; Min-Jung BANG ; Jeong-Meen SEO ; Ji-Young SUL ; Joonhyuk SON ; Joohyun SIM ; Soo Min AHN ; Hee-Beom YANG ; Jung-Tak OH ; Chaeyoun OH ; Joong Kee YOUN ; Sanghoon LEE ; Ju Yeon LEE ; Kyong IHN ; Hye Kyung CHANG ; Yeon Jun JEONG ; Eunyoung JUNG ; Jae Hee CHUNG ; Min Jeong CHO ; Yun-Mee CHOE ; Seok Joo HAN ; In Geol HO ; Jeong HONG
Advances in Pediatric Surgery 2025;31(1):8-15
Purpose:
This study aims to investigate and compare the incidence, demographic characteristics, clinical manifestations, preoperative diagnostic methods, anatomical classifications, associated anomalies, operative treatments, and postoperative outcomes of patients with intestinal atresia treated by the members of the Korean Association of Pediatric Surgeons (KAPS) through three nationwide surveys.
Methods:
KAPS conducted 3 national surveys in 1998, 2010, and 2024 to examine the patients diagnosed with intestinal atresia. In preparation for the survey, we developed a customized case registration form to obtain data on patient sex, birth weight, gestational age, clinical manifestations, preoperative diagnostic methods, anatomical types, associated anomalies, operative treatments, and postoperative outcomes. Authorized KAPS members completed the case registration form.
Results:
The first, second, and third national surveys included 218, 222, and 236 individuals diagnosed with intestinal atresia, respectively. The male-to-female ratios were 1.5:1, 1.1:1, and 1.1:1, respectively. The first, second, and third national surveys revealed that 34.3%, 43.3%, and 53.4% of patients were born before 37 weeks of gestation, respectively. Additionally, 28.7%, 32.0%, and 40.7% of patients had a birth weight under 2,500 g. In the third national survey, duodenoduodenostomy was the most common procedure, performed in 70 out of 82 patients diagnosed with duodenal atresia. Resection and anastomosis were the main surgical procedures conducted in 47 out of 54 cases of jejunal atresia and 74 out of 92 cases of ileal atresia. The mortality rates in the first, second, and third national surveys were 13.8%, 3.6%, and 1.3% respectively, with the lowest rate observed in the third national survey.
Conclusion
These national surveys offer valuable insights into the current state of intestinal atresia, including specific surgical interventions and postoperative outcomes in South Korea. For pediatric surgeons aiming to enhance their understanding of intestinal atresia and its treatment options, these surveys could be an indispensable resource and guide.
4.National Survey of Gastroschisis and Omphalocele by Korean Association of Pediatric Surgeons
Yeon Jun JEONG ; Dayoung KO ; Eun-Jung KOO ; Hyunhee KWON ; Dae Yeon KIM ; Soo-Hong KIM ; Wontae KIM ; Hae-Young KIM ; Hyun Young KIM ; Seong Chul KIM ; Younghyun NA ; Jung-Man NAMGOONG ; So Hyun NAM ; Sungjoo PARK ; Junbeom PARK ; Jinyoung PARK ; Tae-Jun PARK ; Jeong-Meen SEO ; Ji-Young SUL ; Joonhyuk SON ; Hyun Beak SHIN ; Joohyun SIM ; Jung-Tak OH ; Chaeyoun OH ; Joong Kee YOUN ; Sanghoon LEE ; Ju Yeon LEE ; Cheolgu LEE ; Kyong IHN ; Eunyoung JUNG ; Jae Hee CHUNG ; Yong-Hoon CHO ; Yun Mee CHOE ; Soo Jin Na CHOI ; Seok Joo HAN ; In Geol HO
Advances in Pediatric Surgery 2024;30(2):39-51
Purpose:
This study provides insights into the prevalence at birth, clinical characteristics, and outcomes of gastroschisis and omphalocele in Korea over the past decade, addressing the lack of localized data despite advanced healthcare capabilities.
Methods:
The study retrospectively analyzed data from 20 pediatric surgical centers in Korea from January 2012 to December 2021, including 269 patients diagnosed with gastroschisis or omphalocele. Data variables included gender, gestational age, birth weight, associated anomalies, type of defect, surgical interventions, and outcomes.
Results:
The study covered 269 patients, with 80 gastroschisis and 189 omphalocele cases. Gastroschisis prevalence at birth remained stable at 2.15 per 100,000 live births, while omphalocele increased to 5.08 per 100,000. Both conditions had similar gender ratios (0.95). Gastroschisis patients had lower birth weights (2,463.90±505.50 g) and smaller head circumferences (31.97±1.86 cm) compared to omphalocele patients (2,757.65±761.24 g, 32.78±2.64 cm). Omphalocele cases had more associated anomalies, especially cardiovascular issues. Prenatal diagnosis rates were high: 93.7% for gastroschisis and 86.4% for omphalocele. About 96.3% of gastroschisis and 84.1% of omphalocele patients were born in their treatment hospitals. Gastroschisis patients underwent surgery sooner (average 3.5 days) and started feeding later (16.5 days) than omphalocele patients (average 56.5 days to surgery, 6.6 days to start feeding). Hospital stays and follow-up durations were similar, averaging around 782.6 days for gastroschisis and 800.3 days for omphalocele patients. Survival rates were 89.7% for gastroschisis and 87.1% for omphalocele.
Conclusion
The study highlights the need for early diagnosis, centralized care, and specialized surgical approaches to optimize outcomes for gastroschisis and omphalocele patients in Korea. Enhanced prenatal screening and surgical protocols are recommended to improve these patients' prognosis.
5.Comparison of the Right and Left Femur Bone Mineral Densities in Postmenopausal Women
Sejin KIM ; Yoojin NA ; Minji KO ; Jung Yoon PARK ; Hyonjee YOON ; Jae-Yen SONG ; Youn-Jee CHUNG ; Inhye SHIN ; Chaewon KIM ; Jung Hyun PARK ; Mee-Ran KIM
Journal of Menopausal Medicine 2023;29(3):112-118
Objectives:
Bone mineral density (BMD) is measured in the hip and posteroanterior spine; moreover, according to the 2019 International Society for Clinical Densitometry guidelines, unilateral hip can be used. This study aimed to determine whether there is a difference between the BMD of both the femurs in postmenopausal women.
Methods:
A total of 343 postmenopausal women were enrolled in this study from January 1, 2010, to December 31, 2019 at a single tertiary hospital. By using the Hologic® Horizon W DXA System, the femur and spine BMD was measured; BMD was recorded in g/cm 2 .Following regions were analyzed in both the femurs: the femur neck, the trochanter area, and total femur.
Results:
Mean age at imaging was 62 ± 9.7 years, and significant difference in the total BMD of both the femurs (P = 0.003) was observed. In secondary analysis, patients with osteoporosis showed significant contralateral BMD discrepancies in trochanter and total proximal femur BMD (P = 0.041 and P = 0.011, respectively). However, in women with normal BMD, no significant difference between the right and left femur BMD was observed. Furthermore, measurement of solely the unilateral hip can lead to a 16.9% of underdiagnosis in postmenopausal women.
Conclusions
In conclusion, it is necessary to check BMD in both hips, particularly in patients suspected of osteoporosis.
6.Prenatal Diagnosis of Congenital Heart Diseases and Associations with Serum Biomarkers of Aneuploidy: A Multicenter Prospective Cohort Study
Jeong Ha WIE ; You Jung HAN ; Soo Hyun KIM ; Moon Young KIM ; Hee Young CHO ; Mi-Young LEE ; Jin Hoon CHUNG ; Seung Mi LEE ; Soo-young OH ; Joon Ho LEE ; Hye Yeon BOO ; Geum Joon CHO ; Han-Sung KWON ; Byoung Jae KIM ; Mi Hye PARK ; Hyun Mee RYU ; Hyun Sun KO
Yonsei Medical Journal 2022;63(8):735-743
Purpose:
We assessed prenatal detection rates of congenital heart disease (CHD) and associations between maternal serum biomarkers and non-chromosomal CHD in singleton pregnancies.
Materials and Methods:
This study was conducted as a secondary analysis of data obtained during a multicenter prospective cohort study that investigated the cost-effectiveness of prenatal testing for fetal aneuploidy. We analyzed the prenatal detection rate and accuracy for CHD screening via ultrasound during the second trimester, as well as associations between serum biomarkers and CHDs, in singleton newborns without chromosomal abnormalities.
Results:
Among 6715 women, 142 (2.1%) newborns were born with CHDs, of which 67 (1.0%) newborns had major CHDs. The prenatal detection rate for all CHDs and major CHDs were 34.5% and 58.2%, respectively. After excluding isolated ventricular septal defects, the detection rate for critical CHDs was 85.9%. Women with low pregnancy-associated plasma protein A (PAPP-A) (<0.4 multiples of the median, MOM) face increased risks of non-chromosomal CHDs [adjusted odds ratio (aOR) 2.76; 95% confidence interval (CI) 1.36–5.13] and major CHDs (aOR 7.30; 95% CI 3.18–15.59), compared to those without CHDs. A higher inhibin A level (≥2.5 MOM; aOR 4.84; 95% CI 1.42–12.46) was associated with non-chromosomal major CHDs.
Conclusion
Ultrasonography performed during the second trimester by obstetricians detected over 85% of critical CHDs. Low maternal serum PAPP-A or high inhibin-A was associated with non-chromosomal CHDs. These results may contribute to an improvement in prenatal diagnosis of CHDs.
7.Efficient myometrial defect closure in a layer by layer fashion after robot-assisted laparoscopic adenomyomectomy: a novel technique
Ayah HIJAZI ; Youn Jee CHUNG ; Najeeba Al SINAN ; Kyungmin PARK ; Minji KO ; Jae Yen SONG ; Mee-Ran KIM
Obstetrics & Gynecology Science 2021;64(3):332-335
Objective:
In this video, we present our novel technique for myometrial defect closure following robot-assisted laparoscopic adenomyomectomy.
Methods:
A narrated video demonstration of our technique. Our patient was a 47-year-old single woman with severe dysmenorrhea, who did not respond to medical therapy and wished to preserve her uterus. Surgery was performed after thorough counseling and obtaining informed consent from the patient (Institutional Review Board number: KC17OESI0238; approval date: March 19, 2018). After removal of the adenomyotic tissue during surgical intervention, the myometrial defect was closed in three steps. First, the defect between the anterior and posterior innermost myometrial layers was closed using a 2-0 Stratafix suture, CT-1 (circle taper) needle (Ethicon, Somerville, NJ, USA). Next, the two sides were approximated using a 2-0 PDS® (polydioxanone) Suture (Ethicon, Somerville, NJ, USA) and V-34 (TAPERCUT®) surgical needle (Ethicon, Somerville, NJ, USA). Finally, the serosa was sutured in a baseball fashion using a 2-0 PDS suture, slim half-circle [SH] needle (Ethicon, Somerville, NJ, USA).
Results:
The patient had no postoperative complications, and her pain was greatly improved. The CA125 level decreased from 434 U/mL to 45.99 U/mL, and the transvaginal ultrasound showed a reduction in posterior myometrial thickness from 5.61 cm to 2.69 cm.
Conclusion
This technique maintained the integrity of the endometrial cavity, posterior myometrial thickness, and uterine layer alignment. We believe that it is a feasible technique and may be a solution for adenomyosis in patients seeking for fertility preservation.
8.The comparison of bilateral bone mineral density in postmenopausal women
Jimin CHA ; Minji KO ; Jaeyoung MIN ; Park Jung YOON ; Hyonjee YOON ; Youn-jee CHUNG ; Jae Yen SONG ; Mee-Ran KIM
Journal of Menopausal Medicine 2021;27(3):s11-
Objectives:
The aim of this study is to determine whether there is a difference between right and left femur bone mineral density (BMD) in postmenopausal women.
Methods:
We performed a retrospective chart review of postmenopausal women who underwent bone mineral density (BMD) measurement from 2010 to 2019 at a single center using dual-energy X-ray absorptiometry (DXA). Data, including BMD and T-scores of bilateral hip and lumbar spine, was gathered for all postmenopausal women above the age of 50 years. The continuous variables were expressed as means with standard deviation for normal distribution and analyzed with a two-sample t-test. Multiple regression analysis was used to test the effect of underlying medical conditions on T-score of bilateral hips. For all analyses, a p-value of <0.05 was considered significant.
Results:
346 patients were included in the study with a mean age at imaging of 62 + 9.7 years and body mass index (BMI) of 23.4 + 6.1 kg/m2 . There were no significant differences between right and left femoral BMDs in all patients. There were significant differences in BMD of both total femurs in women in their 60s and women with normal BMD. There was no difference in both femur BMDs between those taking hormone therapy and those not taking hormone therapy. In patients undergoing osteoporosis treatment, there was a difference in the BMD of both femur neck. Calcium and vitamin D intake were not associated with differences between both femur BMD. We found a significant correlation between the BMD measures at lumbar spine and both femur (p < 0.01).
Conclusion
There were no significant differences between right and left femoral BMDs in postmenopausal women. Therefore, BMD may be measured at either hip. The correlation of bone density between lumbar spine and femur neck is shown to be statistically meaningful. Based on the knowledge of the correlation coefficients between lumbar spine and femur neck, it seems possible to predict the BMD result of one location through the measurement of another.
9.Efficient myometrial defect closure in a layer by layer fashion after robot-assisted laparoscopic adenomyomectomy: a novel technique
Ayah HIJAZI ; Youn Jee CHUNG ; Najeeba Al SINAN ; Kyungmin PARK ; Minji KO ; Jae Yen SONG ; Mee-Ran KIM
Obstetrics & Gynecology Science 2021;64(3):332-335
Objective:
In this video, we present our novel technique for myometrial defect closure following robot-assisted laparoscopic adenomyomectomy.
Methods:
A narrated video demonstration of our technique. Our patient was a 47-year-old single woman with severe dysmenorrhea, who did not respond to medical therapy and wished to preserve her uterus. Surgery was performed after thorough counseling and obtaining informed consent from the patient (Institutional Review Board number: KC17OESI0238; approval date: March 19, 2018). After removal of the adenomyotic tissue during surgical intervention, the myometrial defect was closed in three steps. First, the defect between the anterior and posterior innermost myometrial layers was closed using a 2-0 Stratafix suture, CT-1 (circle taper) needle (Ethicon, Somerville, NJ, USA). Next, the two sides were approximated using a 2-0 PDS® (polydioxanone) Suture (Ethicon, Somerville, NJ, USA) and V-34 (TAPERCUT®) surgical needle (Ethicon, Somerville, NJ, USA). Finally, the serosa was sutured in a baseball fashion using a 2-0 PDS suture, slim half-circle [SH] needle (Ethicon, Somerville, NJ, USA).
Results:
The patient had no postoperative complications, and her pain was greatly improved. The CA125 level decreased from 434 U/mL to 45.99 U/mL, and the transvaginal ultrasound showed a reduction in posterior myometrial thickness from 5.61 cm to 2.69 cm.
Conclusion
This technique maintained the integrity of the endometrial cavity, posterior myometrial thickness, and uterine layer alignment. We believe that it is a feasible technique and may be a solution for adenomyosis in patients seeking for fertility preservation.
10.Validation of the Korean Version of the Questionnaire for Impulsive-Compulsive Disorders in Parkinson's Disease Rating Scale
Ji-Hyun CHOI ; Jee-Young LEE ; Jin Whan CHO ; Seong-Beom KO ; Tae-Beom AHN ; Sang Jin KIM ; Sang-Myung CHEON ; Joong-Seok KIM ; Yoon-Joong KIM ; Hyeo-Il MA ; Jong Sam BAIK ; Phil Hyu LEE ; Sun Ju CHUNG ; Jong-Min KIM ; In-Uk SONG ; Han-Joon KIM ; Young-Hee SUNG ; Do Young KWON ; Jae-Hyeok LEE ; Ji-Young KIM ; Ji Sun KIM ; Ji Young YUN ; Hee Jin KIM ; Jin Yong HONG ; Mi-Jung Kim KIM ; Jinyoung YOUN ; Ji Seon Kim KIM ; Eung Seok OH ; Hui-Jun YANG ; Won Tae YOON ; Sooyeoun YOU ; Kyum-Yil KWON ; Hyung-Eun PARK ; Su-Yun LEE ; Younsoo KIM ; Hee-Tae KIM ; Mee Young PARK
Journal of Clinical Neurology 2020;16(2):245-253
Background:
and PurposeImpulse-control disorder is an important nonmotor symptom of Parkinson's disease (PD) that can lead to financial and social problems, and be related to a poor quality of life. A nationwide multicenter prospective study was performed with the aim of validating the Korean Version of the Questionnaire for Impulsive-Compulsive Disorders in Parkinson's Disease Rating Scale (K-QUIP-RS).
Methods:
The K-QUIP-RS was constructed using forward and backward translation, and pretesting of the prefinal version. PD patients on stable medical condition were recruited from 27 movement-disorder clinics. Participants were assessed using the K-QUIP-RS and evaluated for parkinsonian motor and nonmotor statuses and for PD-related quality of life using a predefined evaluation battery. The test–retest reliability of the K-QUIP-RS was assessed over an interval of 10–14 days, and correlations between the KQUIP-RS and other clinical scales were analyzed.
Results:
This study enrolled 136 patients. The internal consistency of the K-QUIP-RS was indicated by a Cronbach's α coefficient of 0.846, as was the test–retest reliability by a Guttman split-half coefficient of 0.808. The total K-QUIP-RS score was positively correlated with the scores for depression and motivation items on the Unified PD Rating Scale (UPDRS), Montgomery-Asberg Depression Scale, and Rapid-Eye-Movement Sleep-Behavior-Disorders Questionnaire. The total K-QUIP-RS score was also correlated with the scores on part II of the UPDRS and the PD Quality of Life-39 questionnaire, and the dopaminergic medication dose.
Conclusions
The K-QUIP-RS appears to be a reliable assessment tool for impulse-control and related behavioral disturbances in the Korean PD population.

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