1.Outcomes of pancreas transplantation over two decades:a single-center retrospective cohort study
Jiyoung SHIN ; Hye Young WOO ; Eun-Ah JO ; Ara CHO ; Ahram HAN ; Sanghyun AHN ; Sangil MIN ; Jongwon HA
Annals of Surgical Treatment and Research 2025;108(5):271-278
Purpose:
Pancreas transplantation (PT) is a definitive treatment for diabetes mellitus (DM), restoring endogenous insulin secretion and improving glycemic control. Despite its efficacy, PT is less common in South Korea compared to Western nations. This study aims to report the clinical outcomes of PT over 2 decades at a single center, focusing on surgical techniques, complications, and graft survival.
Methods:
A retrospective analysis of 69 PT recipients at Seoul National University Hospital between January 2002 and December 2023 was conducted. Data on recipient and donor demographics, surgical details, immunosuppressive regimens, and graft outcomes were collected. Graft survival was evaluated using Kaplan-Meier analysis, with subgroup comparisons using the log-rank test. Graft failure was defined as graft removal, PT re-registration, insulin dependence exceeding 0.5 units/kg/day for more than 90 days, or patient death.
Results:
Among the 69 recipients, 50 (72.5%) had type 1 DM, and 18 (26.1%) had type 2 DM. Simultaneous pancreaskidney (SPK) transplantations comprised 84.1% (n = 58), and pancreas-after-kidney (PAK) transplantations accounted for 10.1%. The 1-year and 5-year death-censored pancreas graft survival rates were 92.7% and 89.6%, respectively, with no significant difference between SPK and PAK (P = 0.330). Graft failure occurred in 10 patients, primarily due to pancreatitis and rejection. Donor-related factors, particularly anoxic brain injury, were significantly associated with lower graft survival (P = 0.045).
Conclusion
PT outcomes in this cohort align with international standards, emphasizing the importance of donor selection and tailored immunosuppression. Expanding PT indications to include selective type 2 DM patients could benefit South Korea’s PT programs with adequate resource allocation.
2.Outcomes of pancreas transplantation over two decades:a single-center retrospective cohort study
Jiyoung SHIN ; Hye Young WOO ; Eun-Ah JO ; Ara CHO ; Ahram HAN ; Sanghyun AHN ; Sangil MIN ; Jongwon HA
Annals of Surgical Treatment and Research 2025;108(5):271-278
Purpose:
Pancreas transplantation (PT) is a definitive treatment for diabetes mellitus (DM), restoring endogenous insulin secretion and improving glycemic control. Despite its efficacy, PT is less common in South Korea compared to Western nations. This study aims to report the clinical outcomes of PT over 2 decades at a single center, focusing on surgical techniques, complications, and graft survival.
Methods:
A retrospective analysis of 69 PT recipients at Seoul National University Hospital between January 2002 and December 2023 was conducted. Data on recipient and donor demographics, surgical details, immunosuppressive regimens, and graft outcomes were collected. Graft survival was evaluated using Kaplan-Meier analysis, with subgroup comparisons using the log-rank test. Graft failure was defined as graft removal, PT re-registration, insulin dependence exceeding 0.5 units/kg/day for more than 90 days, or patient death.
Results:
Among the 69 recipients, 50 (72.5%) had type 1 DM, and 18 (26.1%) had type 2 DM. Simultaneous pancreaskidney (SPK) transplantations comprised 84.1% (n = 58), and pancreas-after-kidney (PAK) transplantations accounted for 10.1%. The 1-year and 5-year death-censored pancreas graft survival rates were 92.7% and 89.6%, respectively, with no significant difference between SPK and PAK (P = 0.330). Graft failure occurred in 10 patients, primarily due to pancreatitis and rejection. Donor-related factors, particularly anoxic brain injury, were significantly associated with lower graft survival (P = 0.045).
Conclusion
PT outcomes in this cohort align with international standards, emphasizing the importance of donor selection and tailored immunosuppression. Expanding PT indications to include selective type 2 DM patients could benefit South Korea’s PT programs with adequate resource allocation.
3.Outcomes of pancreas transplantation over two decades:a single-center retrospective cohort study
Jiyoung SHIN ; Hye Young WOO ; Eun-Ah JO ; Ara CHO ; Ahram HAN ; Sanghyun AHN ; Sangil MIN ; Jongwon HA
Annals of Surgical Treatment and Research 2025;108(5):271-278
Purpose:
Pancreas transplantation (PT) is a definitive treatment for diabetes mellitus (DM), restoring endogenous insulin secretion and improving glycemic control. Despite its efficacy, PT is less common in South Korea compared to Western nations. This study aims to report the clinical outcomes of PT over 2 decades at a single center, focusing on surgical techniques, complications, and graft survival.
Methods:
A retrospective analysis of 69 PT recipients at Seoul National University Hospital between January 2002 and December 2023 was conducted. Data on recipient and donor demographics, surgical details, immunosuppressive regimens, and graft outcomes were collected. Graft survival was evaluated using Kaplan-Meier analysis, with subgroup comparisons using the log-rank test. Graft failure was defined as graft removal, PT re-registration, insulin dependence exceeding 0.5 units/kg/day for more than 90 days, or patient death.
Results:
Among the 69 recipients, 50 (72.5%) had type 1 DM, and 18 (26.1%) had type 2 DM. Simultaneous pancreaskidney (SPK) transplantations comprised 84.1% (n = 58), and pancreas-after-kidney (PAK) transplantations accounted for 10.1%. The 1-year and 5-year death-censored pancreas graft survival rates were 92.7% and 89.6%, respectively, with no significant difference between SPK and PAK (P = 0.330). Graft failure occurred in 10 patients, primarily due to pancreatitis and rejection. Donor-related factors, particularly anoxic brain injury, were significantly associated with lower graft survival (P = 0.045).
Conclusion
PT outcomes in this cohort align with international standards, emphasizing the importance of donor selection and tailored immunosuppression. Expanding PT indications to include selective type 2 DM patients could benefit South Korea’s PT programs with adequate resource allocation.
4.Stent-assisted coiling of a ruptured basilar artery perforator aneurysm: A case report
Jongwon CHO ; Sang Hyun SUH ; Joonho CHUNG
Journal of Cerebrovascular and Endovascular Neurosurgery 2023;25(1):81-86
Basilar artery (BA) perforator aneurysms are exceedingly rare causes of subarachnoid hemorrhage. Therefore, the natural history and optimal treatment have not been established, and surgical, endovascular, and conservative management have been used. However, there is no consensus on the optimal treatment strategy. Herein, we report the case of a 52-year-old man presenting with a ruptured BA perforator aneurysm. First, we deployed an Enterprise stent from the left P1 segment to the BA because the microcatheter could not enter the aneurysm. Then, we deployed a helical coil on the orifice of the BA perforator. Finally, we deployed another Enterprise stent, sandwiching the helical coil between the two Enterprise stents. The aneurysm was completely obliterated without recurrence on the follow-up angiography. Our technique of sandwiching the small helical coil between two Enterprise stents might help other surgeons by offering another feasible treatment option for ruptured BA perforator aneurysms.
5.Clinical Effect of Transverse Process Hook with K-Means Clustering-Based Stratification of Computed Tomography Hounsfield Unit at Upper Instrumented Vertebra Level in Adult Spinal Deformity Patients
Jongwon CHO ; Seungjun RYU ; Hyun-Jun JANG ; Jeong-Yoon PARK ; Yoon HA ; Sung-Uk KUH ; Dong-Kyu CHIN ; Keun-Su KIM ; Yong-Eun CHO ; Kyung-Hyun KIM
Journal of Korean Neurosurgical Society 2023;66(1):44-52
Objective:
: This study aimed to investigate the efficacy of transverse process (TP) hook system at the upper instrumented vertebra (UIV) for preventing screw pullout in adult spinal deformity surgery using the pedicle Hounsfield unit (HU) stratification based on K-means clustering.
Methods:
: We retrospectively reviewed 74 patients who underwent deformity correction surgery between 2011 and 2020 and were followed up for >12 months. Pre- and post-operative data were used to determine the incidence of screw pullout, UIV TP hook implementation, vertebral body HU, pedicle HU, and patient outcomes. Data was then statistically analyzed for assessment of efficacy and risk prediction using stratified HU at UIV level alongside the effect of the TP hook system.
Results:
: The screw pullout rate was 36.4% (27/74). Perioperative radiographic parameters were not significantly different between the pullout and non-pullout groups. The vertebral body HU and pedicle HU were significantly lower in the pullout group. K-means clustering stratified the vertebral body HU ≥205.3, <137.2, and pedicle HU ≥243.43, <156.03. The pullout rate significantly decreases in patients receiving the hook system when the pedicle HU was from ≥156.03 to < 243.43 (p<0.05), but the difference was not statistically significant in the vertebra HU stratified groups and when pedicle HU was ≥243.43 or <156.03. The postoperative clinical outcomes improved significantly with the implementation of the hook system.
Conclusion
: The UIV hook provides better clinical outcomes and can be considered a preventative strategy for screw-pullout in the certain pedicle HU range.
6.Directional Atherectomy for Treating In-Stent Restenosis of the Superficial Femoral Artery
Sungsin CHO ; Ahram HAN ; Sanghyun AHN ; Sangil MIN ; Jongwon HA ; Hwan Jun JAE ; Seung-Kee MIN
Vascular Specialist International 2020;36(3):136-143
Purpose:
The optimal treatment for in-stent restenosis (ISR) of the superficial femoral artery (SFA) is still in debate. This study aimed to evaluate the safety and effectiveness of directional atherectomy (DA) as a primary treatment modality for ISR in SFA.
Materials and Methods:
A retrospective single-center analysis was conducted. In total, 617 stents were deployed in 242 limbs for SFA diseases during the study period. ISR was identified in 29 limbs (12.0%); 14 limbs were treated with DA and 15 limbs with balloon angioplasty (BAP) alone. Technical success rate, target lesion revascularization (TLR) and patency rates (PRs) at 12 months, and any complications were evaluated.
Results:
DA group included complete occlusions in 50% of patients and BAP group included in 40%. Mean improvement in the ankle-brachial index was 0.29 and 0.32, respectively (P=0.638). Technical success was achieved in all patients.The procedural success rates were 85.7% and 73.3%, respectively (P=0.651). There was no significant difference regarding residual stenosis, distal embolization, or flow-limiting dissection. Primary PRs at 1 year were 85.7% and 73.3%, secondary PRs were 100.0% and 93.3%, and TLR rates were 14.3% and 20.0% (P=0.411, 0.326, and 0.684, respectively).
Conclusion
Short-term outcomes after DA for ISR were not different from those after BAP but showed a tendency of better primary PR and TLR. Larger multicenter prospective studies are needed to define the role of DA in ISR treatment.
7.Erratum: Post-Transplant Lymphoproliferative Diseases in Pediatric Kidney Allograft Recipients with Epstein-Barr Virus Viremia
Hyesun HYUN ; Eujin PARK ; Myunghyun CHO ; Sang Il MIN ; Jongwon HA ; Hyoung Jin KANG ; Hee Young SHIN ; Il Soo HA ; Hae Il CHEONG ; Yo Han AHN ; Hee Gyung KANG
Journal of Korean Medical Science 2020;35(2):29-
8.Additional effect of magnesium sulfate and vitamin C in laparoscopic gynecologic surgery for postoperative pain management: a double-blind randomized controlled trial
Sungho MOON ; Sehun LIM ; Jongwon YUN ; Wonjin LEE ; Myounghun KIM ; Kwangrae CHO ; Seunghee KI
Anesthesia and Pain Medicine 2020;15(1):88-95
Background:
This clinical trial was conducted to determine whether combined use of magnesium sulfate and vitamin C more significantly reduced postoperative fentanyl consumption and pain than magnesium sulfate or vitamin C alone.
Methods:
The prospective, double-blinded, randomized controlled study enrolled 132 patients scheduled for laparoscopic gynecologic surgery. The patients were randomly allocated to one of the four groups (n = 33 for each group; Group M [magnesium sulfate 40 mg/kg], Group V [vitamin C 50 mg/kg], Group MV [magnesium sulfate 40 mg/kg and vitamin C 50 mg/kg] and Group C [isotonic saline 40 ml]). Cumulative postoperative fentanyl consumption (primary endpoint measure), postoperative pain score by numeric rating scale, and postoperative nausea and vomiting were recorded at 1, 6, 24, and 48 h after discharge from the postanesthesia care unit.
Results:
Cumulative postoperative fentanyl consumption was significantly less in Groups M, V, and MV than in Group C at all time points. Group MV showed significantly less cumulative postoperative fentanyl consumption than Group M at postoperative 24 h (mean ± standard deviation, 156.6 ± 67.5 vs. 235.6 ± 94.6 μg, P = 0.001), as well as significantly less consumption than Groups M and V at postoperative 48 h (190.8 ± 74.6 vs. 301.0 ± 114.8 or 284.1 ± 128.6 μg, P < 0.001, P = 0.003, respectively).
Conclusions
Combined use of magnesium sulfate and vitamin C provides an additional benefit in postoperative pain management after laparoscopic gynecologic surgery in comparison to single administration of magnesium sulfate or vitamin C.
9.Erratum: Post-Transplant Lymphoproliferative Diseases in Pediatric Kidney Allograft Recipients with Epstein-Barr Virus Viremia
Hyesun HYUN ; Eujin PARK ; Myunghyun CHO ; Sang Il MIN ; Jongwon HA ; Hyoung Jin KANG ; Hee Young SHIN ; Il Soo HA ; Hae Il CHEONG ; Yo Han AHN ; Hee Gyung KANG
Journal of Korean Medical Science 2020;35(2):e29-
The authors regret that there were errors in (Text/Table 1). This notice corrects on page 4 and page 5.

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