1.Robot-assisted ureteral reconstruction for managing kidney transplant patients with ureteric complications
Dongho SHIN ; San KANG ; Seung Ah RHEW ; Chang Eil YOON ; Hyong Woo MOON ; Yong Hyun PARK ; Hyuk Jin CHO
Investigative and Clinical Urology 2025;66(1):18-26
Purpose:
To evaluate the feasibility of robot-assisted ureteral reconstruction as a minimally invasive alternative to open surgery for managing ureteric complications in transplanted kidneys.
Materials and Methods:
From January 2020 to December 2023, robot-assisted ureteral reconstruction was performed on fifteen kidney transplant patients with vesicoureteral reflux (VUR) or ureteral stricture who had previously failed endoscopic treatments.
Results:
Twelve females and three males, with a mean age of 48.6±6.6 years, were included in the study. Nine patients (60.0%) underwent surgery due to VUR (grade III or higher) of the transplanted kidney, and six patients (40.0%) had transplanted ureteral strictures. Postoperative voiding cystourethrogram (VCUG) was performed at 3.2±1.6 months. Seven patients (77.8%) became VUR-free, while two patients (22.2%) had VUR regression from grade IV to I. All six patients who underwent reconstruction due to anastomosis site stricture became stenosis-free without the need for an indwelling ureteral catheter. In cases where the ureter was too short for reimplantation, a Boari flap or end-to-end anastomosis with the native ureter was performed. The mean hospital stay was 5.9±4.5 days. The urethral catheter was removed after 15.1±5.4 days, and the ureteral catheter was removed after 4.9±1.5 weeks. The mean follow-up period was 23.9±6.8 months, with no additional interventions required after surgery. No complications above Clavien-Dindo grade I were recorded.
Conclusions
Robotic ureteral reconstruction is technically feasible and offers an effective, minimally invasive treatment for ureteric complications in kidney transplant patients, serving as an alternative to open surgery.
2.Lecanemab: Appropriate Use Recommendations by Korean Dementia Association
Kee Hyung PARK ; Geon Ha KIM ; Chi-Hun KIM ; Seong-Ho KOH ; So Young MOON ; Young Ho PARK ; Sang Won SEO ; Bora YOON ; Jae-Sung LIM ; Byeong C. KIM ; Hee-Jin KIM ; Hae Ri NA ; YongSoo SHIM ; YoungSoon YANG ; Chan-Nyoung LEE ; Hak Young RHEE ; San JUNG ; Jee Hyang JEONG ; Hojin CHOI ; Dong Won YANG ; Seong Hye CHOI
Dementia and Neurocognitive Disorders 2024;23(4):165-187
Lecanemab (product name Leqembi ® ) is an anti-amyloid monoclonal antibody treatment approved for use in Korea for patients with mild cognitive impairment (MCI) or mild dementia due to Alzheimer's disease. The Korean Dementia Association has created recommendations for the appropriate use of lecanemab to assist clinicians. These recommendations include selecting patients for administration, necessary pre-administration tests and preparations,administration methods, monitoring for amyloid related imaging abnormalities (ARIA), and communication with patients and caregivers. Lecanemab is recommended for patients with MCI or mild dementia who confirmed positive amyloid biomarkers, and should not be administered to patients with severe hypersensitivity to lecanemab or those unable to undergo magnetic resonance imaging (MRI) evaluation. To predict the risk of ARIA before administration, apolipoprotein E genotyping is conducted, and regular brain MRI evaluations are recommended to monitor for ARIA during treatment. The most common adverse reactions are infusion-related reactions, which require appropriate management upon occurrence. Additional caution is needed when co-administering with anticoagulants or tissue plasminogen activator due to the risk of macrohemorrhage. Clinicians should consider the efficacy and necessary conditions for administration, as well as the safety of lecanemab, to make a comprehensive decision regarding its use.
3.Extraperitoneal single-port robot-assisted radical prostatectomy: Short-term outcomes and technique description
Hyeok Jae KWON ; San KANG ; Seung Ah RHEW ; Chang Eil YOON ; Dongho SHIN ; Seokhwan BANG ; Hyong Woo MOON ; Woong Jin BAE ; Hyuk Jin CHO ; U-Syn HA ; Ji Youl LEE ; Sae Woong KIM ; Sung-Hoo HONG
Investigative and Clinical Urology 2024;65(5):442-450
Purpose:
We evaluated the feasibility, safety, and learning curve of extraperitoneal single-port robot-assisted radical prostatectomy (SP-RARP) and introduced innovative surgical techniques to maintain the instrument positions during the procedures.
Materials and Methods:
A cohort of 100 patients underwent extraperitoneal SP-RARP at our institution from December 2021 to April 2023. The procedures were performed by an experienced urology surgeon utilizing two surgical techniques for dissecting the posterior aspect of the prostate—“changing instrument roles” and “using camera inversion”—to prevent positional shifts between the camera and instruments.
Results:
The mean operation time for SP-RARP was 93.58 minutes, and the mean console time was 65.16 minutes. The mean estimated blood loss during the procedures was 109.30 mL. No cases necessitated conversion to multi-port robot, laparoscopy, or open surgery, and there were no major complications during the hospital stay or in the short-term follow-up. Early outcomes of post-radical prostatectomy indicated a biochemical recurrence rate of 4.0% over a mean follow-up duration of 6.40 months, with continence and potency recovery rates of 92.3% and 55.8%, respectively. Analysis of the learning curve showed no significant differences in operation time, console time, and positive surgical margin rates between the initial and latter 50 cases.
Conclusions
Extraperitoneal SP-RARP is a feasible and safe option for the treatment of localized prostate cancer in skilled hands.Continued accrual of cases is essential for future comparisons of SP-RARP with multiport approaches.
4.Lecanemab: Appropriate Use Recommendations by Korean Dementia Association
Kee Hyung PARK ; Geon Ha KIM ; Chi-Hun KIM ; Seong-Ho KOH ; So Young MOON ; Young Ho PARK ; Sang Won SEO ; Bora YOON ; Jae-Sung LIM ; Byeong C. KIM ; Hee-Jin KIM ; Hae Ri NA ; YongSoo SHIM ; YoungSoon YANG ; Chan-Nyoung LEE ; Hak Young RHEE ; San JUNG ; Jee Hyang JEONG ; Hojin CHOI ; Dong Won YANG ; Seong Hye CHOI
Dementia and Neurocognitive Disorders 2024;23(4):165-187
Lecanemab (product name Leqembi ® ) is an anti-amyloid monoclonal antibody treatment approved for use in Korea for patients with mild cognitive impairment (MCI) or mild dementia due to Alzheimer's disease. The Korean Dementia Association has created recommendations for the appropriate use of lecanemab to assist clinicians. These recommendations include selecting patients for administration, necessary pre-administration tests and preparations,administration methods, monitoring for amyloid related imaging abnormalities (ARIA), and communication with patients and caregivers. Lecanemab is recommended for patients with MCI or mild dementia who confirmed positive amyloid biomarkers, and should not be administered to patients with severe hypersensitivity to lecanemab or those unable to undergo magnetic resonance imaging (MRI) evaluation. To predict the risk of ARIA before administration, apolipoprotein E genotyping is conducted, and regular brain MRI evaluations are recommended to monitor for ARIA during treatment. The most common adverse reactions are infusion-related reactions, which require appropriate management upon occurrence. Additional caution is needed when co-administering with anticoagulants or tissue plasminogen activator due to the risk of macrohemorrhage. Clinicians should consider the efficacy and necessary conditions for administration, as well as the safety of lecanemab, to make a comprehensive decision regarding its use.
5.Lecanemab: Appropriate Use Recommendations by Korean Dementia Association
Kee Hyung PARK ; Geon Ha KIM ; Chi-Hun KIM ; Seong-Ho KOH ; So Young MOON ; Young Ho PARK ; Sang Won SEO ; Bora YOON ; Jae-Sung LIM ; Byeong C. KIM ; Hee-Jin KIM ; Hae Ri NA ; YongSoo SHIM ; YoungSoon YANG ; Chan-Nyoung LEE ; Hak Young RHEE ; San JUNG ; Jee Hyang JEONG ; Hojin CHOI ; Dong Won YANG ; Seong Hye CHOI
Dementia and Neurocognitive Disorders 2024;23(4):165-187
Lecanemab (product name Leqembi ® ) is an anti-amyloid monoclonal antibody treatment approved for use in Korea for patients with mild cognitive impairment (MCI) or mild dementia due to Alzheimer's disease. The Korean Dementia Association has created recommendations for the appropriate use of lecanemab to assist clinicians. These recommendations include selecting patients for administration, necessary pre-administration tests and preparations,administration methods, monitoring for amyloid related imaging abnormalities (ARIA), and communication with patients and caregivers. Lecanemab is recommended for patients with MCI or mild dementia who confirmed positive amyloid biomarkers, and should not be administered to patients with severe hypersensitivity to lecanemab or those unable to undergo magnetic resonance imaging (MRI) evaluation. To predict the risk of ARIA before administration, apolipoprotein E genotyping is conducted, and regular brain MRI evaluations are recommended to monitor for ARIA during treatment. The most common adverse reactions are infusion-related reactions, which require appropriate management upon occurrence. Additional caution is needed when co-administering with anticoagulants or tissue plasminogen activator due to the risk of macrohemorrhage. Clinicians should consider the efficacy and necessary conditions for administration, as well as the safety of lecanemab, to make a comprehensive decision regarding its use.
6.Lecanemab: Appropriate Use Recommendations by Korean Dementia Association
Kee Hyung PARK ; Geon Ha KIM ; Chi-Hun KIM ; Seong-Ho KOH ; So Young MOON ; Young Ho PARK ; Sang Won SEO ; Bora YOON ; Jae-Sung LIM ; Byeong C. KIM ; Hee-Jin KIM ; Hae Ri NA ; YongSoo SHIM ; YoungSoon YANG ; Chan-Nyoung LEE ; Hak Young RHEE ; San JUNG ; Jee Hyang JEONG ; Hojin CHOI ; Dong Won YANG ; Seong Hye CHOI
Dementia and Neurocognitive Disorders 2024;23(4):165-187
Lecanemab (product name Leqembi ® ) is an anti-amyloid monoclonal antibody treatment approved for use in Korea for patients with mild cognitive impairment (MCI) or mild dementia due to Alzheimer's disease. The Korean Dementia Association has created recommendations for the appropriate use of lecanemab to assist clinicians. These recommendations include selecting patients for administration, necessary pre-administration tests and preparations,administration methods, monitoring for amyloid related imaging abnormalities (ARIA), and communication with patients and caregivers. Lecanemab is recommended for patients with MCI or mild dementia who confirmed positive amyloid biomarkers, and should not be administered to patients with severe hypersensitivity to lecanemab or those unable to undergo magnetic resonance imaging (MRI) evaluation. To predict the risk of ARIA before administration, apolipoprotein E genotyping is conducted, and regular brain MRI evaluations are recommended to monitor for ARIA during treatment. The most common adverse reactions are infusion-related reactions, which require appropriate management upon occurrence. Additional caution is needed when co-administering with anticoagulants or tissue plasminogen activator due to the risk of macrohemorrhage. Clinicians should consider the efficacy and necessary conditions for administration, as well as the safety of lecanemab, to make a comprehensive decision regarding its use.
7.Review of regulatory management on standards and specifications for veterinary medical devices in Korea.
Kyoung Mook KANG ; Tae Won KIM ; Oh Ryun KWON ; Hea Jung PARK ; Soo Min CHO ; Chung Hyun KIM ; Myoung Heon LEE ; Jin San MOON
Korean Journal of Veterinary Research 2017;57(2):71-78
Well-established standards and specifications for medical devices not only provide clarity and consistency in licensing processes but also secure device safety and effectiveness. This study reviewed regulatory standards and specifications for veterinary medical devices in Korea based on data obtained through analyses of those medical devices. General standards for electromechanical, electromagnetic, and biological safety and individual standards for 76 electric and 70 general medical device products have been established by the Korean Ministry of Food and Drug Safety. However, the first standards and specifications for veterinary medical devices were established in March 2000 for two products (disposable needle and syringe). Similar to the large number of standards for medical devices, there have been general standards for safety and individual standards for 72 veterinary medical devices (27 electric medical devices, 12 non-electric medical devices, 10 medical supplies, and 23 other types) established since 2014. These new standards considered, among other aspects, the devices' applications, usage characteristics, and industrial environment. To date, the establishment of standards and specifications for veterinary medical devices remains limited. This study suggests that improvements should be made to the regulation of general and individual standards associated with various veterinary medical instruments, supplies, and in vitro diagnostic medical reagents.
Equipment and Supplies
;
Equipment Safety
;
In Vitro Techniques
;
Indicators and Reagents
;
Korea*
;
Licensure
;
Magnets
;
Needles
8.Genome-Wide Association Study of Bone Mineral Density in Korean Men.
Ye Seul BAE ; Sun Wha IM ; Mi So KANG ; Jin Hee KIM ; Soon Hang LEE ; Be Long CHO ; Jin Ho PARK ; You Seon NAM ; Ho Young SON ; San Deok YANG ; Joohon SUNG ; Kwang Ho OH ; Jae Moon YUN ; Jong Il KIM
Genomics & Informatics 2016;14(2):62-68
Osteoporosis is a medical condition of global concern, with increasing incidence in both sexes. Bone mineral density (BMD), a highly heritable trait, has been proven a useful diagnostic factor in predicting fracture. Because medical information is lacking about male osteoporotic genetics, we conducted a genome-wide association study of BMD in Korean men. With 1,176 participants, we analyzed 4,414,664 single nucleotide polymorphisms (SNPs) after genomic imputation, and identified five SNPs and three loci correlated with bone density and strength. Multivariate linear regression models were applied to adjust for age and body mass index interference. Rs17124500 (p = 6.42 × 10⁻⁷), rs34594869 (p = 6.53 × 10⁻⁷) and rs17124504 (p = 6.53 × 10⁻⁷) in 14q31.3 and rs140155614 (p = 8.64 × 10⁻⁷) in 15q25.1 were significantly associated with lumbar spine BMD (LS-BMD), while rs111822233 (p = 6.35 × 10⁻⁷) was linked with the femur total BMD (FT-BMD). Additionally, we analyzed the relationship between BMD and five genes previously identified in Korean men. Rs61382873 (p = 0.0009) in LRP5, rs9567003 (p = 0.0033) in TNFSF11 and rs9935828 (p = 0.0248) in FOXL1 were observed for LS-BMD. Furthermore, rs33997547 (p = 0.0057) in ZBTB and rs1664496 (p = 0.0012) in MEF2C were found to influence FT-BMD and rs61769193 (p = 0.0114) in ZBTB to influence femur neck BMD. We identified five SNPs and three genomic regions, associated with BMD. The significance of our results lies in the discovery of new loci, while also affirming a previously significant locus, as potential osteoporotic factors in the Korean male population.
Asian Continental Ancestry Group
;
Body Mass Index
;
Bone Density*
;
Femur
;
Femur Neck
;
Genetics
;
Genome-Wide Association Study*
;
Humans
;
Incidence
;
Linear Models
;
Male
;
Osteoporosis
;
Polymorphism, Single Nucleotide
;
Spine
9.Performance assessment and improvement plan of the regulatory management system of veterinary medical devices in Korea.
Hyo Jin AN ; Hyang Jin YOON ; Chung Hyun KIM ; Sung Hwan WEE ; Jin San MOON
Korean Journal of Veterinary Research 2015;55(2):97-103
In this study, the Korean veterinary medical devices management system was evaluated relative to systems in the USA, EU, and Japan. Veterinary medical devices are regulated in Korea based on the Medical Appliance Act of 1997. This was initially supervised by the Ministry of Agriculture, Food and Rural Affairs and Korea Animal Health Products Association, and subsequently by the Animal and Plant Quarantine Agency (QIA) in 2000. These devices were classified approximately 1,400 categories as instruments, supplies, artificial insemination apparatus, and other categories. Each of these devices was assigned to four regulatory grades by the QIA in 2007. The ranking system for veterinary medical devices was implemented in 2014 with 820 products from 162 companies registered by that year. However, in vitro diagnostic devices (IVDDs) for animals were managed as medical devices and biological medicine. In vitro diagnostic reagents for treating infection diseases are not subjected to either a classification or grading system. Veterinary medical devices are currently exempt from good manufacturing practices (GMP) and device tracking requirements. Due to gradual growth of the domestic veterinary medical devices market since 2008, regulation of these devices should be improved with re-examination of IVDDs and GMP certification for the effective operating system.
Agriculture
;
Animals
;
Certification
;
Classification
;
Equipment and Supplies
;
Indicators and Reagents
;
Insemination, Artificial
;
Japan
;
Korea
;
Plants
;
Quarantine
;
Reagent Kits, Diagnostic
10.Radiation safety management for diagnostic radiation generators and employees in animal hospitals in Korea.
Hyo Jin AN ; Chung Hyun KIM ; Young Jin KWON ; Don Hwan KIM ; Sung Hwan WEE ; Jin San MOON
Korean Journal of Veterinary Research 2014;54(3):151-157
A nationwide survey on radiation safety management in Korean animal hospitals was conducted. By 2013, 53 radiation generators were registered as veterinary medical devices (41 X-ray generators and 12 computed tomography scanners). Additionally there were six approved laboratories for radiation equipment and protection facility, and five approved laboratories for radiation exposure of employees, respectively. By March 2013, 2,030 out of 3,829 animal hospitals operated radiation-generating devices. Among these devices, 389 (19.2%) out of 2,030 were not labeled with the model name and 746 (36.7%) were not labeled with production dates. Thus, most veterinary X-ray generators were outdated (42.6%) and needed replacements. When periodic inspections of 2,018 animal hospitals were performed after revision of the Veterinarians Act in 2011, the hospitals were found to be equipped with appropriate radiation generators and protection facilities. Among 2,545 employees exposed to radiation at the hospitals, 93.9% were veterinarians, 4.3% were animal nurse technicians, and 18% held other positions. Among 169 employees supervised by administrators, none of those had a weekly maximum operating load that exceeded 10 mA.min. This study suggests that the radiation safety management system of animal hospitals was general good.
Administrative Personnel
;
Animals
;
Hospitals, Animal*
;
Humans
;
Korea
;
Safety Management*
;
Veterinarians

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