1.Eosinophilic Cholangitis Diagnosed in a Patient with Abnormal Liver Enzymes: A Case Report
Sung Hoon CHANG ; Jun Yeol KIM ; Yong Soo SONG ; Tae Seung LEE ; Jin Ho CHOI ; Woo Hyun PAIK ; Sang Hyub LEE ; Ji Kon RYU ; In Rae CHO
Korean Journal of Pancreas and Biliary Tract 2025;30(1):19-25
It is difficult to determine a cause of bile duct stricture and dilatation. Eosinophilic cholangitis, a rare benign condition, may be one cause of bile duct stricture and dilatation. It can be evaluated using various methods of histopathology, radiographs, endoscopy, and hematologic findings. Treatment generally involves steroid therapy which can lead to improvement. This case report will discuss eosinophilic cholangitis, emphasizing that while it can easily be overlooked but should be considered in differential diagnoses.
2.Second-Line Fluoropyrimidine-Based Chemotherapy in Advanced Biliary Tract Cancer: A Meta-analysis Based on Individual Patient-Level Data of Randomized Trials
Jaewon HYUNG ; Minsu KANG ; Ilhwan KIM ; Kyu-pyo KIM ; Baek-Yeol RYOO ; Jaekyung CHEON ; Hyewon RYU ; Ji Sung LEE ; Ji-Won KIM ; In Sil CHOI ; Jin Hyun PARK ; Ghassan K. ABOU-ALFA ; Jin Won KIM ; Changhoon YOO
Cancer Research and Treatment 2025;57(2):519-527
Purpose:
While fluoropyrimidine-based chemotherapy regimens are recommended second-line treatment for patients with advanced biliary tract cancer (BTC), there have been no studies comparing different regimens head-to-head.
Materials and Methods:
We performed individual patient-level meta-analysis based on data from the intention-to-treat population of the phase 2b NIFTY trial (liposomal irinotecan [nal-IRI] plus fluorouracil and leucovorin [5-FU/LV] vs. 5-FU/LV; NCT03542508) and the phase 2 FIReFOX trial (modified oxaliplatin plus 5-FU/LV [mFOLFOX] vs. modified irinotecan plus 5-FU/LV [mFOLFIRI]; NCT03464968). Pairwise log-rank tests and multivariable analysis using Cox proportional hazards modeling with shared frailty to account for the trial's effect were used to compare overall survival (OS) between regimens.
Results:
A total of 277 patients were included. The nal-IRI plus 5-FU/LV group (n=88) showed significantly better OS compared to the mFOLFOX group (n=49, pairwise log-rank, p=0.02), and mFOLFIRI group (n=50, p=0.03). Multivariable analysis showed consistent trends in OS with adjusted hazard ratios of 1.39 (mFOLFOX vs. nal-IRI plus 5-FU/LV: 95% confidence interval [CI], 0.93 to 2.07; p=0.11) and 1.36 (mFOLFIRI vs. nal-IRI plus 5-FU/LV: 95% CI, 0.92 to 2.03; p=0.13), respectively. Compared to the 5-FU/LV group, the mFOLFOX group and the mFOLFIRI group did not show differences in terms of OS (pairwise log-rank p=0.83 and p=0.58, respectively). The nal-IRI plus 5-FU/LV group experienced more frequent diarrhea, while the mFOLFOX group experienced peripheral neuropathy.
Conclusion
Nal-IRI plus 5-FU/LV showed favorable survival outcomes compared to mFOLFOX, mFOLFIRI, or 5-FU/LV. The safety profiles of these regimens should be considered along with efficacy.
3.Eosinophilic Cholangitis Diagnosed in a Patient with Abnormal Liver Enzymes: A Case Report
Sung Hoon CHANG ; Jun Yeol KIM ; Yong Soo SONG ; Tae Seung LEE ; Jin Ho CHOI ; Woo Hyun PAIK ; Sang Hyub LEE ; Ji Kon RYU ; In Rae CHO
Korean Journal of Pancreas and Biliary Tract 2025;30(1):19-25
It is difficult to determine a cause of bile duct stricture and dilatation. Eosinophilic cholangitis, a rare benign condition, may be one cause of bile duct stricture and dilatation. It can be evaluated using various methods of histopathology, radiographs, endoscopy, and hematologic findings. Treatment generally involves steroid therapy which can lead to improvement. This case report will discuss eosinophilic cholangitis, emphasizing that while it can easily be overlooked but should be considered in differential diagnoses.
4.Eosinophilic Cholangitis Diagnosed in a Patient with Abnormal Liver Enzymes: A Case Report
Sung Hoon CHANG ; Jun Yeol KIM ; Yong Soo SONG ; Tae Seung LEE ; Jin Ho CHOI ; Woo Hyun PAIK ; Sang Hyub LEE ; Ji Kon RYU ; In Rae CHO
Korean Journal of Pancreas and Biliary Tract 2025;30(1):19-25
It is difficult to determine a cause of bile duct stricture and dilatation. Eosinophilic cholangitis, a rare benign condition, may be one cause of bile duct stricture and dilatation. It can be evaluated using various methods of histopathology, radiographs, endoscopy, and hematologic findings. Treatment generally involves steroid therapy which can lead to improvement. This case report will discuss eosinophilic cholangitis, emphasizing that while it can easily be overlooked but should be considered in differential diagnoses.
5.Second-Line Fluoropyrimidine-Based Chemotherapy in Advanced Biliary Tract Cancer: A Meta-analysis Based on Individual Patient-Level Data of Randomized Trials
Jaewon HYUNG ; Minsu KANG ; Ilhwan KIM ; Kyu-pyo KIM ; Baek-Yeol RYOO ; Jaekyung CHEON ; Hyewon RYU ; Ji Sung LEE ; Ji-Won KIM ; In Sil CHOI ; Jin Hyun PARK ; Ghassan K. ABOU-ALFA ; Jin Won KIM ; Changhoon YOO
Cancer Research and Treatment 2025;57(2):519-527
Purpose:
While fluoropyrimidine-based chemotherapy regimens are recommended second-line treatment for patients with advanced biliary tract cancer (BTC), there have been no studies comparing different regimens head-to-head.
Materials and Methods:
We performed individual patient-level meta-analysis based on data from the intention-to-treat population of the phase 2b NIFTY trial (liposomal irinotecan [nal-IRI] plus fluorouracil and leucovorin [5-FU/LV] vs. 5-FU/LV; NCT03542508) and the phase 2 FIReFOX trial (modified oxaliplatin plus 5-FU/LV [mFOLFOX] vs. modified irinotecan plus 5-FU/LV [mFOLFIRI]; NCT03464968). Pairwise log-rank tests and multivariable analysis using Cox proportional hazards modeling with shared frailty to account for the trial's effect were used to compare overall survival (OS) between regimens.
Results:
A total of 277 patients were included. The nal-IRI plus 5-FU/LV group (n=88) showed significantly better OS compared to the mFOLFOX group (n=49, pairwise log-rank, p=0.02), and mFOLFIRI group (n=50, p=0.03). Multivariable analysis showed consistent trends in OS with adjusted hazard ratios of 1.39 (mFOLFOX vs. nal-IRI plus 5-FU/LV: 95% confidence interval [CI], 0.93 to 2.07; p=0.11) and 1.36 (mFOLFIRI vs. nal-IRI plus 5-FU/LV: 95% CI, 0.92 to 2.03; p=0.13), respectively. Compared to the 5-FU/LV group, the mFOLFOX group and the mFOLFIRI group did not show differences in terms of OS (pairwise log-rank p=0.83 and p=0.58, respectively). The nal-IRI plus 5-FU/LV group experienced more frequent diarrhea, while the mFOLFOX group experienced peripheral neuropathy.
Conclusion
Nal-IRI plus 5-FU/LV showed favorable survival outcomes compared to mFOLFOX, mFOLFIRI, or 5-FU/LV. The safety profiles of these regimens should be considered along with efficacy.
6.Eosinophilic Cholangitis Diagnosed in a Patient with Abnormal Liver Enzymes: A Case Report
Sung Hoon CHANG ; Jun Yeol KIM ; Yong Soo SONG ; Tae Seung LEE ; Jin Ho CHOI ; Woo Hyun PAIK ; Sang Hyub LEE ; Ji Kon RYU ; In Rae CHO
Korean Journal of Pancreas and Biliary Tract 2025;30(1):19-25
It is difficult to determine a cause of bile duct stricture and dilatation. Eosinophilic cholangitis, a rare benign condition, may be one cause of bile duct stricture and dilatation. It can be evaluated using various methods of histopathology, radiographs, endoscopy, and hematologic findings. Treatment generally involves steroid therapy which can lead to improvement. This case report will discuss eosinophilic cholangitis, emphasizing that while it can easily be overlooked but should be considered in differential diagnoses.
7.Second-Line Fluoropyrimidine-Based Chemotherapy in Advanced Biliary Tract Cancer: A Meta-analysis Based on Individual Patient-Level Data of Randomized Trials
Jaewon HYUNG ; Minsu KANG ; Ilhwan KIM ; Kyu-pyo KIM ; Baek-Yeol RYOO ; Jaekyung CHEON ; Hyewon RYU ; Ji Sung LEE ; Ji-Won KIM ; In Sil CHOI ; Jin Hyun PARK ; Ghassan K. ABOU-ALFA ; Jin Won KIM ; Changhoon YOO
Cancer Research and Treatment 2025;57(2):519-527
Purpose:
While fluoropyrimidine-based chemotherapy regimens are recommended second-line treatment for patients with advanced biliary tract cancer (BTC), there have been no studies comparing different regimens head-to-head.
Materials and Methods:
We performed individual patient-level meta-analysis based on data from the intention-to-treat population of the phase 2b NIFTY trial (liposomal irinotecan [nal-IRI] plus fluorouracil and leucovorin [5-FU/LV] vs. 5-FU/LV; NCT03542508) and the phase 2 FIReFOX trial (modified oxaliplatin plus 5-FU/LV [mFOLFOX] vs. modified irinotecan plus 5-FU/LV [mFOLFIRI]; NCT03464968). Pairwise log-rank tests and multivariable analysis using Cox proportional hazards modeling with shared frailty to account for the trial's effect were used to compare overall survival (OS) between regimens.
Results:
A total of 277 patients were included. The nal-IRI plus 5-FU/LV group (n=88) showed significantly better OS compared to the mFOLFOX group (n=49, pairwise log-rank, p=0.02), and mFOLFIRI group (n=50, p=0.03). Multivariable analysis showed consistent trends in OS with adjusted hazard ratios of 1.39 (mFOLFOX vs. nal-IRI plus 5-FU/LV: 95% confidence interval [CI], 0.93 to 2.07; p=0.11) and 1.36 (mFOLFIRI vs. nal-IRI plus 5-FU/LV: 95% CI, 0.92 to 2.03; p=0.13), respectively. Compared to the 5-FU/LV group, the mFOLFOX group and the mFOLFIRI group did not show differences in terms of OS (pairwise log-rank p=0.83 and p=0.58, respectively). The nal-IRI plus 5-FU/LV group experienced more frequent diarrhea, while the mFOLFOX group experienced peripheral neuropathy.
Conclusion
Nal-IRI plus 5-FU/LV showed favorable survival outcomes compared to mFOLFOX, mFOLFIRI, or 5-FU/LV. The safety profiles of these regimens should be considered along with efficacy.
8.Eosinophilic Cholangitis Diagnosed in a Patient with Abnormal Liver Enzymes: A Case Report
Sung Hoon CHANG ; Jun Yeol KIM ; Yong Soo SONG ; Tae Seung LEE ; Jin Ho CHOI ; Woo Hyun PAIK ; Sang Hyub LEE ; Ji Kon RYU ; In Rae CHO
Korean Journal of Pancreas and Biliary Tract 2025;30(1):19-25
It is difficult to determine a cause of bile duct stricture and dilatation. Eosinophilic cholangitis, a rare benign condition, may be one cause of bile duct stricture and dilatation. It can be evaluated using various methods of histopathology, radiographs, endoscopy, and hematologic findings. Treatment generally involves steroid therapy which can lead to improvement. This case report will discuss eosinophilic cholangitis, emphasizing that while it can easily be overlooked but should be considered in differential diagnoses.
9.Retrospective analysis of characteristics of patients presenting to the emergency room following dental treatment
Ji-Young HWANG ; Jihye RYU ; Chiho MOON ; Jae-Yeol LEE
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2024;50(6):326-332
Objectives:
This study is a retrospective analysis of patients who visited the emergency room (ER) following dental treatment over a period of 3 years, with the aim to enhance the understanding of emergency situations that may arise after dental procedures and to develop appropriate postoperative management and emergency care methods.
Patients and Methods:
A total of 796 emergency patients whose visits were attributed to dental procedures, of 4,241 patients who visited the ER at Pusan National University Yangsan Hospital from January 2021 to January 2024, was included in the study. Patients were categorized based on the reason for visit into bleeding, inflammation, and other categories. Analysis was conducted on variables such as types of dental treatment, underlying conditions, and emergency treatment methods using ER records.
Results:
Among the 796 patients, 68.4% (539 patients) were in the bleeding group, 27.7% (219 patients) in the inflammation group, and 4.8% (38 patients) in the other complications group. Among the bleeding group, there were no associations between postoperative bleeding and systemic diseases, antithrombotic medications, or dental treatments. In 36.2% of cases, compression hemostasis alone was sufficient to resolve the bleeding. In the inflammation group, 29% of the cases required extraoral incision and drainage as emergency treatment, while 53% of the cases required subsequent hospitalization. Factors associated with hospitalization included underlying diseases (especially diabetes mellitus), procedures on mandibular teeth (especially third molars), and age older than 30 years.
Conclusion
Ensuring adequate hemostasis after dental procedures is essential regardless of the patient’s underlying medical conditions. Dentists must also educate patients on pressure hemostasis techniques. Patients with underlying medical conditions, such as diabetes, have a higher possibility of requiring hospitalization if inflammation occurs. Therefore, preventive measures against inflammation should be implemented in these patients.
10.Four Cases of 0.625% Povidone-Iodine Intravitreal Injection Followed by Vitrectomy for Acute Endophthalmitis after Cataract Surgery: Case Report
Moon Young CHOI ; Gahyung RYU ; Daruchi MOON ; Jae Pil SHIN ; Si Dong KIM ; Si Yeol KIM ; Yong Koo KANG ; Han Sang PARK ; Yang Jae KIM
Journal of Retina 2024;9(2):204-209
Purpose:
We sought to report the results of 0.625%/0.1 mL of povidone–iodine (PI) intravitreal injection (0.013% PI vitreous concentration) for treating acute endophthalmitis after cataract surgery.Case summary: Case 1 developed acute endophthalmitis one day after cataract surgery. Prompt intervention with PI injection and vitrectomy led to full resolution of inflammation and a visual acuity of 0.8, and the patient remained stable at 10 months. Case 2, a patient with persistent post-cataract inflammation, was treated with PI injection and vitrectomy, resulting in complete resolution of inflammation and improvement of visual acuity to 0.6 by eight months. Case 3 was a diabetic patient who experienced severe acute endophthalmitis.The patient was treated with the above intervention, resulting in full resolution of endophthalmitis; however, he eventually lost vision due to neovascular glaucoma. Case 4 developed recurrent endophthalmitis caused by Achromobacter xylosoxidans after cataract surgery. This patient required multiple vitrectomies, PI injections, and intraocular lens removal, which led to a resolution of inflammation and restoration of visual acuity to 1.0 after 14 months.
Conclusions
0.625%/0.1-mL IPI injection followed by vitrectomy was performed in four acute endophthalmitis patients after cataract surgery and were successfully treated.

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