1.Hyperbaric Oxygen Therapy for the Treatment of Chronic Prostatitis/Chronic Pelvic Pain Syndrome: Case Report
Kwang Jin KIM ; Yoonsuk LEE ; Yong Sung CHA ; Tae Wook KANG ; Hyun Chul CHUNG ; Hong CHUNG ; Hyun KIM ; Jae Hung JUNG
Urogenital Tract Infection 2024;19(2):44-47
Hyperbaric oxygen therapy (HBOT) was conducted on two male patients with chronic prostatitis/chronic pelvic pain syndrome who were resistant to conventional medical therapies. Both patients underwent 20 sessions of 100% oxygen inhalation (2.0 atmosphere absolute for 90 min/day, five days/week for four weeks) in a hyperbaric chamber. The follow-up period was three months. Although the patients reported a slight improvement in the pain domain of the National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) after HBOT, no changes were noted in the other domains of NIH-CPSI and International Prostate Symptom Score. No adverse events were encountered during or after HBOT.
2.Development of a Deep Learning-Based Predictive Model for Improvement after Holmium Laser Enucleation of the Prostate According to Detrusor Contractility
Jong Hoon LEE ; Jung Hyun KIM ; Myung Jin CHUNG ; Kyu-Sung LEE ; Kwang Jin KO
International Neurourology Journal 2024;28(Suppl 2):S82-89
Purpose:
Predicting improvements in voiding symptoms following deobstructive surgery for male lower urinary tract symptoms/benign prostatic hyperplasia (LUTS/BPH) is challenging when detrusor contractility is impaired. This study aimed to develop an artificial intelligence model that predicts symptom improvement after holmium laser enucleation of the prostate (HoLEP), focusing on changes in maximum flow rate (MFR) and voiding efficiency (VE) 1-month postsurgery.
Methods:
We reviewed 1,933 patients who underwent HoLEP at Samsung Medical Center from July 2008 to January 2024. The study employed a deep neural network (DNN) for multiclass classification to predict changes in MFR and VE, each divided into 3 categories. For comparison, additional machine learning (ML) models such as extreme gradient boosting, random forest classification, and support vector machine were utilized. To address class imbalance, we applied the least squares method and multitask learning.
Results:
A total of 1,142 patients with complete data were included in the study, with 992 allocated for model training and 150 for external validation. In predicting MFR, the DNN achieved a microaverage area under the receiver operating characteristic curve (AUC) of 0.884±0.006, sensitivity of 0.783±0.020, and specificity of 0.891±0.010. For VE prediction, the microaverage AUC was 0.817±0.007, with sensitivity and specificity values of 0.660±0.014 and 0.830±0.007, respectively. These results indicate that the DNN's predictive performance was superior to that of other ML models.
Conclusions
The DNN model provides detailed and accurate predictions for recovery after HoLEP, providing valuable insights for clinicians managing patients with LUTS/BPH.
3.Clinical Trial Protocol for Porcine Islet Xenotransplantation in South Korea
Byung-Joon KIM ; Jun-Seop SHIN ; Byoung-Hoon MIN ; Jong-Min KIM ; Chung-Gyu PARK ; Hee-Jung KANG ; Eung Soo HWANG ; Won-Woo LEE ; Jung-Sik KIM ; Hyun Je KIM ; Iov KWON ; Jae Sung KIM ; Geun Soo KIM ; Joonho MOON ; Du Yeon SHIN ; Bumrae CHO ; Heung-Mo YANG ; Sung Joo KIM ; Kwang-Won KIM
Diabetes & Metabolism Journal 2024;48(6):1160-1168
Background:
Islet transplantation holds promise for treating selected type 1 diabetes mellitus patients, yet the scarcity of human donor organs impedes widespread adoption. Porcine islets, deemed a viable alternative, recently demonstrated successful longterm survival without zoonotic risks in a clinically relevant pig-to-non-human primate islet transplantation model. This success prompted the development of a clinical trial protocol for porcine islet xenotransplantation in humans.
Methods:
A single-center, open-label clinical trial initiated by the sponsor will assess the safety and efficacy of porcine islet transplantation for diabetes patients at Gachon Hospital. The protocol received approval from the Gachon Hospital Institutional Review Board (IRB) and the Korean Ministry of Food and Drug Safety (MFDS) under the Investigational New Drug (IND) process. Two diabetic patients, experiencing inadequate glycemic control despite intensive insulin treatment and frequent hypoglycemic unawareness, will be enrolled. Participants and their family members will engage in deliberation before xenotransplantation during the screening period. Each patient will receive islets isolated from designated pathogen-free pigs. Immunosuppressants and systemic infection prophylaxis will follow the program schedule. The primary endpoint is to confirm the safety of porcine islets in patients, and the secondary endpoint is to assess whether porcine islets can reduce insulin dose and the frequency of hypoglycemic unawareness.
Conclusion
A clinical trial protocol adhering to global consensus guidelines for porcine islet xenotransplantation is presented, facilitating streamlined implementation of comparable human trials worldwide.
4.Hyperbaric Oxygen Therapy for the Treatment of Chronic Prostatitis/Chronic Pelvic Pain Syndrome: Case Report
Kwang Jin KIM ; Yoonsuk LEE ; Yong Sung CHA ; Tae Wook KANG ; Hyun Chul CHUNG ; Hong CHUNG ; Hyun KIM ; Jae Hung JUNG
Urogenital Tract Infection 2024;19(2):44-47
Hyperbaric oxygen therapy (HBOT) was conducted on two male patients with chronic prostatitis/chronic pelvic pain syndrome who were resistant to conventional medical therapies. Both patients underwent 20 sessions of 100% oxygen inhalation (2.0 atmosphere absolute for 90 min/day, five days/week for four weeks) in a hyperbaric chamber. The follow-up period was three months. Although the patients reported a slight improvement in the pain domain of the National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) after HBOT, no changes were noted in the other domains of NIH-CPSI and International Prostate Symptom Score. No adverse events were encountered during or after HBOT.
5.Hyperbaric Oxygen Therapy for the Treatment of Chronic Prostatitis/Chronic Pelvic Pain Syndrome: Case Report
Kwang Jin KIM ; Yoonsuk LEE ; Yong Sung CHA ; Tae Wook KANG ; Hyun Chul CHUNG ; Hong CHUNG ; Hyun KIM ; Jae Hung JUNG
Urogenital Tract Infection 2024;19(2):44-47
Hyperbaric oxygen therapy (HBOT) was conducted on two male patients with chronic prostatitis/chronic pelvic pain syndrome who were resistant to conventional medical therapies. Both patients underwent 20 sessions of 100% oxygen inhalation (2.0 atmosphere absolute for 90 min/day, five days/week for four weeks) in a hyperbaric chamber. The follow-up period was three months. Although the patients reported a slight improvement in the pain domain of the National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) after HBOT, no changes were noted in the other domains of NIH-CPSI and International Prostate Symptom Score. No adverse events were encountered during or after HBOT.
6.Clinical Trial Protocol for Porcine Islet Xenotransplantation in South Korea
Byung-Joon KIM ; Jun-Seop SHIN ; Byoung-Hoon MIN ; Jong-Min KIM ; Chung-Gyu PARK ; Hee-Jung KANG ; Eung Soo HWANG ; Won-Woo LEE ; Jung-Sik KIM ; Hyun Je KIM ; Iov KWON ; Jae Sung KIM ; Geun Soo KIM ; Joonho MOON ; Du Yeon SHIN ; Bumrae CHO ; Heung-Mo YANG ; Sung Joo KIM ; Kwang-Won KIM
Diabetes & Metabolism Journal 2024;48(6):1160-1168
Background:
Islet transplantation holds promise for treating selected type 1 diabetes mellitus patients, yet the scarcity of human donor organs impedes widespread adoption. Porcine islets, deemed a viable alternative, recently demonstrated successful longterm survival without zoonotic risks in a clinically relevant pig-to-non-human primate islet transplantation model. This success prompted the development of a clinical trial protocol for porcine islet xenotransplantation in humans.
Methods:
A single-center, open-label clinical trial initiated by the sponsor will assess the safety and efficacy of porcine islet transplantation for diabetes patients at Gachon Hospital. The protocol received approval from the Gachon Hospital Institutional Review Board (IRB) and the Korean Ministry of Food and Drug Safety (MFDS) under the Investigational New Drug (IND) process. Two diabetic patients, experiencing inadequate glycemic control despite intensive insulin treatment and frequent hypoglycemic unawareness, will be enrolled. Participants and their family members will engage in deliberation before xenotransplantation during the screening period. Each patient will receive islets isolated from designated pathogen-free pigs. Immunosuppressants and systemic infection prophylaxis will follow the program schedule. The primary endpoint is to confirm the safety of porcine islets in patients, and the secondary endpoint is to assess whether porcine islets can reduce insulin dose and the frequency of hypoglycemic unawareness.
Conclusion
A clinical trial protocol adhering to global consensus guidelines for porcine islet xenotransplantation is presented, facilitating streamlined implementation of comparable human trials worldwide.
7.Clinical Trial Protocol for Porcine Islet Xenotransplantation in South Korea
Byung-Joon KIM ; Jun-Seop SHIN ; Byoung-Hoon MIN ; Jong-Min KIM ; Chung-Gyu PARK ; Hee-Jung KANG ; Eung Soo HWANG ; Won-Woo LEE ; Jung-Sik KIM ; Hyun Je KIM ; Iov KWON ; Jae Sung KIM ; Geun Soo KIM ; Joonho MOON ; Du Yeon SHIN ; Bumrae CHO ; Heung-Mo YANG ; Sung Joo KIM ; Kwang-Won KIM
Diabetes & Metabolism Journal 2024;48(6):1160-1168
Background:
Islet transplantation holds promise for treating selected type 1 diabetes mellitus patients, yet the scarcity of human donor organs impedes widespread adoption. Porcine islets, deemed a viable alternative, recently demonstrated successful longterm survival without zoonotic risks in a clinically relevant pig-to-non-human primate islet transplantation model. This success prompted the development of a clinical trial protocol for porcine islet xenotransplantation in humans.
Methods:
A single-center, open-label clinical trial initiated by the sponsor will assess the safety and efficacy of porcine islet transplantation for diabetes patients at Gachon Hospital. The protocol received approval from the Gachon Hospital Institutional Review Board (IRB) and the Korean Ministry of Food and Drug Safety (MFDS) under the Investigational New Drug (IND) process. Two diabetic patients, experiencing inadequate glycemic control despite intensive insulin treatment and frequent hypoglycemic unawareness, will be enrolled. Participants and their family members will engage in deliberation before xenotransplantation during the screening period. Each patient will receive islets isolated from designated pathogen-free pigs. Immunosuppressants and systemic infection prophylaxis will follow the program schedule. The primary endpoint is to confirm the safety of porcine islets in patients, and the secondary endpoint is to assess whether porcine islets can reduce insulin dose and the frequency of hypoglycemic unawareness.
Conclusion
A clinical trial protocol adhering to global consensus guidelines for porcine islet xenotransplantation is presented, facilitating streamlined implementation of comparable human trials worldwide.
8.Development of a Deep Learning-Based Predictive Model for Improvement after Holmium Laser Enucleation of the Prostate According to Detrusor Contractility
Jong Hoon LEE ; Jung Hyun KIM ; Myung Jin CHUNG ; Kyu-Sung LEE ; Kwang Jin KO
International Neurourology Journal 2024;28(Suppl 2):S82-89
Purpose:
Predicting improvements in voiding symptoms following deobstructive surgery for male lower urinary tract symptoms/benign prostatic hyperplasia (LUTS/BPH) is challenging when detrusor contractility is impaired. This study aimed to develop an artificial intelligence model that predicts symptom improvement after holmium laser enucleation of the prostate (HoLEP), focusing on changes in maximum flow rate (MFR) and voiding efficiency (VE) 1-month postsurgery.
Methods:
We reviewed 1,933 patients who underwent HoLEP at Samsung Medical Center from July 2008 to January 2024. The study employed a deep neural network (DNN) for multiclass classification to predict changes in MFR and VE, each divided into 3 categories. For comparison, additional machine learning (ML) models such as extreme gradient boosting, random forest classification, and support vector machine were utilized. To address class imbalance, we applied the least squares method and multitask learning.
Results:
A total of 1,142 patients with complete data were included in the study, with 992 allocated for model training and 150 for external validation. In predicting MFR, the DNN achieved a microaverage area under the receiver operating characteristic curve (AUC) of 0.884±0.006, sensitivity of 0.783±0.020, and specificity of 0.891±0.010. For VE prediction, the microaverage AUC was 0.817±0.007, with sensitivity and specificity values of 0.660±0.014 and 0.830±0.007, respectively. These results indicate that the DNN's predictive performance was superior to that of other ML models.
Conclusions
The DNN model provides detailed and accurate predictions for recovery after HoLEP, providing valuable insights for clinicians managing patients with LUTS/BPH.
9.Hyperbaric Oxygen Therapy for the Treatment of Chronic Prostatitis/Chronic Pelvic Pain Syndrome: Case Report
Kwang Jin KIM ; Yoonsuk LEE ; Yong Sung CHA ; Tae Wook KANG ; Hyun Chul CHUNG ; Hong CHUNG ; Hyun KIM ; Jae Hung JUNG
Urogenital Tract Infection 2024;19(2):44-47
Hyperbaric oxygen therapy (HBOT) was conducted on two male patients with chronic prostatitis/chronic pelvic pain syndrome who were resistant to conventional medical therapies. Both patients underwent 20 sessions of 100% oxygen inhalation (2.0 atmosphere absolute for 90 min/day, five days/week for four weeks) in a hyperbaric chamber. The follow-up period was three months. Although the patients reported a slight improvement in the pain domain of the National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) after HBOT, no changes were noted in the other domains of NIH-CPSI and International Prostate Symptom Score. No adverse events were encountered during or after HBOT.
10.Clinical Trial Protocol for Porcine Islet Xenotransplantation in South Korea
Byung-Joon KIM ; Jun-Seop SHIN ; Byoung-Hoon MIN ; Jong-Min KIM ; Chung-Gyu PARK ; Hee-Jung KANG ; Eung Soo HWANG ; Won-Woo LEE ; Jung-Sik KIM ; Hyun Je KIM ; Iov KWON ; Jae Sung KIM ; Geun Soo KIM ; Joonho MOON ; Du Yeon SHIN ; Bumrae CHO ; Heung-Mo YANG ; Sung Joo KIM ; Kwang-Won KIM
Diabetes & Metabolism Journal 2024;48(6):1160-1168
Background:
Islet transplantation holds promise for treating selected type 1 diabetes mellitus patients, yet the scarcity of human donor organs impedes widespread adoption. Porcine islets, deemed a viable alternative, recently demonstrated successful longterm survival without zoonotic risks in a clinically relevant pig-to-non-human primate islet transplantation model. This success prompted the development of a clinical trial protocol for porcine islet xenotransplantation in humans.
Methods:
A single-center, open-label clinical trial initiated by the sponsor will assess the safety and efficacy of porcine islet transplantation for diabetes patients at Gachon Hospital. The protocol received approval from the Gachon Hospital Institutional Review Board (IRB) and the Korean Ministry of Food and Drug Safety (MFDS) under the Investigational New Drug (IND) process. Two diabetic patients, experiencing inadequate glycemic control despite intensive insulin treatment and frequent hypoglycemic unawareness, will be enrolled. Participants and their family members will engage in deliberation before xenotransplantation during the screening period. Each patient will receive islets isolated from designated pathogen-free pigs. Immunosuppressants and systemic infection prophylaxis will follow the program schedule. The primary endpoint is to confirm the safety of porcine islets in patients, and the secondary endpoint is to assess whether porcine islets can reduce insulin dose and the frequency of hypoglycemic unawareness.
Conclusion
A clinical trial protocol adhering to global consensus guidelines for porcine islet xenotransplantation is presented, facilitating streamlined implementation of comparable human trials worldwide.

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