1.First report of iron-overload myopathy due to secondary hemochromatosis in a dog
Jae-Hyuk YIM ; Tae-Un KIM ; Woo Jun KIM ; Seulgi BAE ; Sungho YUN ; Su-Min BAEK ; Jin-Kyu PARK
Journal of Veterinary Science 2025;26(1):e3-
and Relevance: Severe necrosis and mild fibrosis were observed in the liver and forelimb skeletal muscles. Based on histological analysis, we diagnosed iron overload myopathy by secondary hemochromatosis. Secondary hemochromatosis with severe muscle atrophy and myositis is very rare, and this is the first report of iron-overload myopathy in a dog.
2.First report of iron-overload myopathy due to secondary hemochromatosis in a dog
Jae-Hyuk YIM ; Tae-Un KIM ; Woo Jun KIM ; Seulgi BAE ; Sungho YUN ; Su-Min BAEK ; Jin-Kyu PARK
Journal of Veterinary Science 2025;26(1):e3-
and Relevance: Severe necrosis and mild fibrosis were observed in the liver and forelimb skeletal muscles. Based on histological analysis, we diagnosed iron overload myopathy by secondary hemochromatosis. Secondary hemochromatosis with severe muscle atrophy and myositis is very rare, and this is the first report of iron-overload myopathy in a dog.
3.Impact of Resident Shortage on Trauma Care During the 2024 Medical Conflict: A Single Regional Emergency Medical Center Experience and Recommendations
Jun Hyung KIM ; Sungho LEE ; Kwanhoon PARK ; Kang Yoon LEE ; Ji Young JANG
Journal of Acute Care Surgery 2025;15(1):13-19
Purpose:
In 2024, the South Korean government proposed an essential medical care package, including the expansion of medical college admissions, which faced strong opposition from the medical community. Consequently, residents resigned, increasing the workload of the remaining staff and putting public health at risk. This study analyzed changes in the hospitalization patterns of trauma patients during this political conflict period using single-center data from the National Health Insurance Service Ilsan Hospital.
Methods:
Data from the entire year 2023 and from March to August 2024 were used for analysis, excluding January and February 2024 when the conflict escalated. The selection criteria included patients with trauma who visited the emergency room, and comparisons were made between the periods before and during the medical conflict.
Results:
In 2023, the total number of patients with trauma were 1,182 (an average of 98.5 per month). From March to August 2024, the number dropped to 204 (34.2 per month), reflecting a significant reduction in the monthly average number of patients with trauma. Despite the overall decline, the number of severe trauma cases remained relatively stable, indicating a shift toward more critical patient care. Emergency department length of stay decreased significantly from 295 min in 2023 to 187 min in 2024.
Conclusion
The ongoing strain on emergency and support department risks leads to an irreversible collapse if critical points are reached. To address this, localized trauma centers are needed to relieve the burden on larger medical institutions and improve the efficiency of trauma care systems during crises.
4.Impact of Resident Shortage on Trauma Care During the 2024 Medical Conflict: A Single Regional Emergency Medical Center Experience and Recommendations
Jun Hyung KIM ; Sungho LEE ; Kwanhoon PARK ; Kang Yoon LEE ; Ji Young JANG
Journal of Acute Care Surgery 2025;15(1):13-19
Purpose:
In 2024, the South Korean government proposed an essential medical care package, including the expansion of medical college admissions, which faced strong opposition from the medical community. Consequently, residents resigned, increasing the workload of the remaining staff and putting public health at risk. This study analyzed changes in the hospitalization patterns of trauma patients during this political conflict period using single-center data from the National Health Insurance Service Ilsan Hospital.
Methods:
Data from the entire year 2023 and from March to August 2024 were used for analysis, excluding January and February 2024 when the conflict escalated. The selection criteria included patients with trauma who visited the emergency room, and comparisons were made between the periods before and during the medical conflict.
Results:
In 2023, the total number of patients with trauma were 1,182 (an average of 98.5 per month). From March to August 2024, the number dropped to 204 (34.2 per month), reflecting a significant reduction in the monthly average number of patients with trauma. Despite the overall decline, the number of severe trauma cases remained relatively stable, indicating a shift toward more critical patient care. Emergency department length of stay decreased significantly from 295 min in 2023 to 187 min in 2024.
Conclusion
The ongoing strain on emergency and support department risks leads to an irreversible collapse if critical points are reached. To address this, localized trauma centers are needed to relieve the burden on larger medical institutions and improve the efficiency of trauma care systems during crises.
5.First report of iron-overload myopathy due to secondary hemochromatosis in a dog
Jae-Hyuk YIM ; Tae-Un KIM ; Woo Jun KIM ; Seulgi BAE ; Sungho YUN ; Su-Min BAEK ; Jin-Kyu PARK
Journal of Veterinary Science 2025;26(1):e3-
and Relevance: Severe necrosis and mild fibrosis were observed in the liver and forelimb skeletal muscles. Based on histological analysis, we diagnosed iron overload myopathy by secondary hemochromatosis. Secondary hemochromatosis with severe muscle atrophy and myositis is very rare, and this is the first report of iron-overload myopathy in a dog.
6.Impact of Resident Shortage on Trauma Care During the 2024 Medical Conflict: A Single Regional Emergency Medical Center Experience and Recommendations
Jun Hyung KIM ; Sungho LEE ; Kwanhoon PARK ; Kang Yoon LEE ; Ji Young JANG
Journal of Acute Care Surgery 2025;15(1):13-19
Purpose:
In 2024, the South Korean government proposed an essential medical care package, including the expansion of medical college admissions, which faced strong opposition from the medical community. Consequently, residents resigned, increasing the workload of the remaining staff and putting public health at risk. This study analyzed changes in the hospitalization patterns of trauma patients during this political conflict period using single-center data from the National Health Insurance Service Ilsan Hospital.
Methods:
Data from the entire year 2023 and from March to August 2024 were used for analysis, excluding January and February 2024 when the conflict escalated. The selection criteria included patients with trauma who visited the emergency room, and comparisons were made between the periods before and during the medical conflict.
Results:
In 2023, the total number of patients with trauma were 1,182 (an average of 98.5 per month). From March to August 2024, the number dropped to 204 (34.2 per month), reflecting a significant reduction in the monthly average number of patients with trauma. Despite the overall decline, the number of severe trauma cases remained relatively stable, indicating a shift toward more critical patient care. Emergency department length of stay decreased significantly from 295 min in 2023 to 187 min in 2024.
Conclusion
The ongoing strain on emergency and support department risks leads to an irreversible collapse if critical points are reached. To address this, localized trauma centers are needed to relieve the burden on larger medical institutions and improve the efficiency of trauma care systems during crises.
7.First report of iron-overload myopathy due to secondary hemochromatosis in a dog
Jae-Hyuk YIM ; Tae-Un KIM ; Woo Jun KIM ; Seulgi BAE ; Sungho YUN ; Su-Min BAEK ; Jin-Kyu PARK
Journal of Veterinary Science 2025;26(1):e3-
and Relevance: Severe necrosis and mild fibrosis were observed in the liver and forelimb skeletal muscles. Based on histological analysis, we diagnosed iron overload myopathy by secondary hemochromatosis. Secondary hemochromatosis with severe muscle atrophy and myositis is very rare, and this is the first report of iron-overload myopathy in a dog.
8.Enhanced accuracy in gravity-based intravenous infusion using pulse oximeter drop counting and measured single-drop weights
Daeseok OH ; Myoung Jin KO ; Jae Hwan KIM ; Yeiheum PARK ; Sungho MOON
Anesthesia and Pain Medicine 2025;20(3):230-241
Background:
Intravenous (IV) fluid therapy is essential and widely used; however, it is associated with high error rates, largely due to human factors, necessitating constant and careful monitoring by medical staff. Gravity-based systems are prone to errors, whereas electronic pumps, though more accurate, are limited by size, cost, and complexity. In this study, the impact of single-drop weight measurement and real-time light source monitoring on the accuracy of gravity-based infusion systems was evaluated.
Methods:
Gravity-based IV sets with IV infusion flow regulators (IIFRs) from three manufacturers were tested using 1,000 ml of 0.9% saline. The drops per min and the drop weight were recorded using a pulse oximeter, which served as a light source. The flow rates from the pulse oximeter group (PO) were compared with those from the manufacturer’s drop volume (C) and the IIFR groups. The mean absolute percentage error (MAPE) of predicted versus actual volumes was analyzed along with correlations between the residual volume and drop rate.
Results:
The PO group values were statistically closer to those of the actual measurements than the C and IIFR groups values (P < 0.05), demonstrating higher accuracy and lower MAPE, except at 300 ml/h when than those of the C group, independent of residual volume. The residual volume strongly correlated with the drop rate (r > 0.9).
Conclusions
Real-time drop measurements using light sources combined with single-drop weight assessment improve the accuracy of these systems. Integrating pulse oximeters into IV sets may enhance clinical precision and reduce provider workload.
9.Impact of longitudinal tumor location on postoperative outcomes in gallbladder cancer: Fundus and body vs. neck and cystic duct, a retrospective multicenter study
Kil Hwan KIM ; Ju Ik MOON ; Jae Woo PARK ; Yunghun YOU ; Hae Il JUNG ; Hanlim CHOI ; Si Eun HWANG ; Sungho JO
Annals of Hepato-Biliary-Pancreatic Surgery 2024;28(4):474-482
Background:
s/Aims: Systematic investigations into the prognostic impact of the longitudinal tumor location in gallbladder cancer (GBC) remain insufficient. To address the limitations of our pilot study, we conducted a multicenter investigation to clarify the impact of the longitudinal tumor location on the oncological outcomes of GBC.
Methods:
A retrospective multicenter study was conducted on 372 patients undergoing radical resections for GBC from January 2010 to December 2019 across seven hospitals that belong to the Daejeon–Chungcheong branch of the Korean Association of Hepato-Biliary-Pancreatic Surgery. Patients were divided into GBC in the fundus/body (FB-GBC) and GBC in the neck/cystic duct (NC-GBC) groups, based on the longitudinal tumor location.
Results:
Of 372 patients, 282 had FB-GBC, while 90 had NC-GBC. NC-GBC was associated with more frequent elevation of preoperative carbohydrate antigen (CA) 19-9 levels, requirement for more extensive surgery, more advanced histologic grade and tumor stages, more frequent lymphovascular and perineural invasion, lower R0 resection rates, higher recurrence rates, and worse 5-year overall and disease-free survival rates. Propensity score matching analysis confirmed these findings, showing lower R0 resection rates, higher recurrence rates, and worse survival rates in the NC-GBC group. Multivariate analysis identified elevated preoperative CA 19-9 levels, lymph node metastasis, and non-R0 resection as independent prognostic factors, but not longitudinal tumor location.
Conclusions
NC-GBC exhibits more frequent elevation of preoperative CA 19-9 levels, more advanced histologic grade and tumor stages, lower R0 resection rates, and poorer overall and disease-free survival rates, compared to FB-GBC. However, the longitudinal tumor location was not analyzed as an independent prognostic factor.
10.Usefulness of Noninvasive Ventilation with Negative-Pressure Wound Therapy in the Intensive Care Unit: A Case Report
Dongbeen CHOI ; Ji Young JANG ; Kwanhoon PARK ; Kang Yoon LEE ; Hangil YUN ; Sungho LEE
Journal of Acute Care Surgery 2024;14(3):113-117
Fournier’s gangrene is infectious, necrotizing, life-threatening fasciitis of the perineal, genital, and perianal regions leading to soft-tissue necrosis and sepsis, and is treated with aggressive surgical debridement and antimicrobial agents. Negative-pressure wound therapy can be used if septic risk is controlled. An 82-year-old woman presented with Fournier’s gangrene and septic shock. After emergency debridement, perineal resection, a colostomy, and daily wound debridement was performed under general anesthesia (1 week). Multiple intubations and extubations under general anesthesia are a risk factor for poor patient outcomes. Therefore, negative-pressure wound therapy was performed under light sedation using noninvasive ventilation in the intensive care unit after extubation and for wound debridement. One month later, the perineum was reconstructed. Procedures performed under light sedation should be considered for patients requiring periodic invasive surgical procedures who are burdened by repeated general anesthesia. The number of general anesthesia sessions was significantly reduced by using noninvasive ventilation.

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