1.Endovascular Treatment With Targeted Embolization of Cavernous Sinus Dural Arteriovenous Fistulas:A Single-Center Study
Sangil PARK ; Kyubong LEE ; Eunji MOON ; Jung Cheol PARK ; Boseong KWON ; Deok Hee LEE ; Dae Chul SUH ; Yunsun SONG
Korean Journal of Radiology 2024;25(12):1083-1092
Objective:
To assess the feasibility, efficacy, and safety of targeted embolization for cavernous sinus dural arteriovenous fistulas (CSDAVF).
Materials and Methods:
This retrospective study investigated patients with CSDAVF who underwent endovascular treatment at a tertiary hospital between October 1991 and March 2023. Treatment strategies were determined based on clinical symptoms and shunt characteristics. Targeted or non-targeted curative embolization was performed to achieve complete shunt occlusion.Initially, targeted embolization, selective occlusion of the shunted pouch while preserving the normal cavernous sinus lumen, was conducted, should that fail, non-targeted embolization was performed. In contrast, palliative embolization solely reduced shunt flow. Clinical signs, imaging characteristics, and outcomes were evaluated according to the agreed treatment strategy.
Results:
In total, 198 patients with CSDAVF (mean age 59.0 ± 12.1 years, 23.2% male) participated in this study. Of which, 94 patients (47.5%) were treated with targeted embolization, 75 (37.9%) with non-targeted embolization, and 29 (14.6%) with palliative treatment. For patients undergoing curative embolization, 55.7% (94/169) successfully achieved targeted embolization; this procedure was usually used to treat focal fistulas (restrictive or late-restrictive types), whereas diffuse fistulas (proliferative type) often underwent non-targeted or palliative embolization. For patients that underwent targeted embolization, the rate of complete or near-complete occlusion on immediate post-treatment digital subtraction angiography was 93.6% (88/94), with a complication rate of 2.1% (2/94), symptom improvement rate of 96.8% (91/94), and retreatment rate of 5.3% (5/94). No serious complications were reported during follow-up.
Conclusion
When successful, targeted embolization of CSDAVF causes low rates of cranial nerve palsy, retreatment, and good clinical outcomes.
2.Endovascular Treatment With Targeted Embolization of Cavernous Sinus Dural Arteriovenous Fistulas:A Single-Center Study
Sangil PARK ; Kyubong LEE ; Eunji MOON ; Jung Cheol PARK ; Boseong KWON ; Deok Hee LEE ; Dae Chul SUH ; Yunsun SONG
Korean Journal of Radiology 2024;25(12):1083-1092
Objective:
To assess the feasibility, efficacy, and safety of targeted embolization for cavernous sinus dural arteriovenous fistulas (CSDAVF).
Materials and Methods:
This retrospective study investigated patients with CSDAVF who underwent endovascular treatment at a tertiary hospital between October 1991 and March 2023. Treatment strategies were determined based on clinical symptoms and shunt characteristics. Targeted or non-targeted curative embolization was performed to achieve complete shunt occlusion.Initially, targeted embolization, selective occlusion of the shunted pouch while preserving the normal cavernous sinus lumen, was conducted, should that fail, non-targeted embolization was performed. In contrast, palliative embolization solely reduced shunt flow. Clinical signs, imaging characteristics, and outcomes were evaluated according to the agreed treatment strategy.
Results:
In total, 198 patients with CSDAVF (mean age 59.0 ± 12.1 years, 23.2% male) participated in this study. Of which, 94 patients (47.5%) were treated with targeted embolization, 75 (37.9%) with non-targeted embolization, and 29 (14.6%) with palliative treatment. For patients undergoing curative embolization, 55.7% (94/169) successfully achieved targeted embolization; this procedure was usually used to treat focal fistulas (restrictive or late-restrictive types), whereas diffuse fistulas (proliferative type) often underwent non-targeted or palliative embolization. For patients that underwent targeted embolization, the rate of complete or near-complete occlusion on immediate post-treatment digital subtraction angiography was 93.6% (88/94), with a complication rate of 2.1% (2/94), symptom improvement rate of 96.8% (91/94), and retreatment rate of 5.3% (5/94). No serious complications were reported during follow-up.
Conclusion
When successful, targeted embolization of CSDAVF causes low rates of cranial nerve palsy, retreatment, and good clinical outcomes.
3.Endovascular Treatment With Targeted Embolization of Cavernous Sinus Dural Arteriovenous Fistulas:A Single-Center Study
Sangil PARK ; Kyubong LEE ; Eunji MOON ; Jung Cheol PARK ; Boseong KWON ; Deok Hee LEE ; Dae Chul SUH ; Yunsun SONG
Korean Journal of Radiology 2024;25(12):1083-1092
Objective:
To assess the feasibility, efficacy, and safety of targeted embolization for cavernous sinus dural arteriovenous fistulas (CSDAVF).
Materials and Methods:
This retrospective study investigated patients with CSDAVF who underwent endovascular treatment at a tertiary hospital between October 1991 and March 2023. Treatment strategies were determined based on clinical symptoms and shunt characteristics. Targeted or non-targeted curative embolization was performed to achieve complete shunt occlusion.Initially, targeted embolization, selective occlusion of the shunted pouch while preserving the normal cavernous sinus lumen, was conducted, should that fail, non-targeted embolization was performed. In contrast, palliative embolization solely reduced shunt flow. Clinical signs, imaging characteristics, and outcomes were evaluated according to the agreed treatment strategy.
Results:
In total, 198 patients with CSDAVF (mean age 59.0 ± 12.1 years, 23.2% male) participated in this study. Of which, 94 patients (47.5%) were treated with targeted embolization, 75 (37.9%) with non-targeted embolization, and 29 (14.6%) with palliative treatment. For patients undergoing curative embolization, 55.7% (94/169) successfully achieved targeted embolization; this procedure was usually used to treat focal fistulas (restrictive or late-restrictive types), whereas diffuse fistulas (proliferative type) often underwent non-targeted or palliative embolization. For patients that underwent targeted embolization, the rate of complete or near-complete occlusion on immediate post-treatment digital subtraction angiography was 93.6% (88/94), with a complication rate of 2.1% (2/94), symptom improvement rate of 96.8% (91/94), and retreatment rate of 5.3% (5/94). No serious complications were reported during follow-up.
Conclusion
When successful, targeted embolization of CSDAVF causes low rates of cranial nerve palsy, retreatment, and good clinical outcomes.
4.Endovascular Treatment With Targeted Embolization of Cavernous Sinus Dural Arteriovenous Fistulas:A Single-Center Study
Sangil PARK ; Kyubong LEE ; Eunji MOON ; Jung Cheol PARK ; Boseong KWON ; Deok Hee LEE ; Dae Chul SUH ; Yunsun SONG
Korean Journal of Radiology 2024;25(12):1083-1092
Objective:
To assess the feasibility, efficacy, and safety of targeted embolization for cavernous sinus dural arteriovenous fistulas (CSDAVF).
Materials and Methods:
This retrospective study investigated patients with CSDAVF who underwent endovascular treatment at a tertiary hospital between October 1991 and March 2023. Treatment strategies were determined based on clinical symptoms and shunt characteristics. Targeted or non-targeted curative embolization was performed to achieve complete shunt occlusion.Initially, targeted embolization, selective occlusion of the shunted pouch while preserving the normal cavernous sinus lumen, was conducted, should that fail, non-targeted embolization was performed. In contrast, palliative embolization solely reduced shunt flow. Clinical signs, imaging characteristics, and outcomes were evaluated according to the agreed treatment strategy.
Results:
In total, 198 patients with CSDAVF (mean age 59.0 ± 12.1 years, 23.2% male) participated in this study. Of which, 94 patients (47.5%) were treated with targeted embolization, 75 (37.9%) with non-targeted embolization, and 29 (14.6%) with palliative treatment. For patients undergoing curative embolization, 55.7% (94/169) successfully achieved targeted embolization; this procedure was usually used to treat focal fistulas (restrictive or late-restrictive types), whereas diffuse fistulas (proliferative type) often underwent non-targeted or palliative embolization. For patients that underwent targeted embolization, the rate of complete or near-complete occlusion on immediate post-treatment digital subtraction angiography was 93.6% (88/94), with a complication rate of 2.1% (2/94), symptom improvement rate of 96.8% (91/94), and retreatment rate of 5.3% (5/94). No serious complications were reported during follow-up.
Conclusion
When successful, targeted embolization of CSDAVF causes low rates of cranial nerve palsy, retreatment, and good clinical outcomes.
5.Endovascular Treatment With Targeted Embolization of Cavernous Sinus Dural Arteriovenous Fistulas:A Single-Center Study
Sangil PARK ; Kyubong LEE ; Eunji MOON ; Jung Cheol PARK ; Boseong KWON ; Deok Hee LEE ; Dae Chul SUH ; Yunsun SONG
Korean Journal of Radiology 2024;25(12):1083-1092
Objective:
To assess the feasibility, efficacy, and safety of targeted embolization for cavernous sinus dural arteriovenous fistulas (CSDAVF).
Materials and Methods:
This retrospective study investigated patients with CSDAVF who underwent endovascular treatment at a tertiary hospital between October 1991 and March 2023. Treatment strategies were determined based on clinical symptoms and shunt characteristics. Targeted or non-targeted curative embolization was performed to achieve complete shunt occlusion.Initially, targeted embolization, selective occlusion of the shunted pouch while preserving the normal cavernous sinus lumen, was conducted, should that fail, non-targeted embolization was performed. In contrast, palliative embolization solely reduced shunt flow. Clinical signs, imaging characteristics, and outcomes were evaluated according to the agreed treatment strategy.
Results:
In total, 198 patients with CSDAVF (mean age 59.0 ± 12.1 years, 23.2% male) participated in this study. Of which, 94 patients (47.5%) were treated with targeted embolization, 75 (37.9%) with non-targeted embolization, and 29 (14.6%) with palliative treatment. For patients undergoing curative embolization, 55.7% (94/169) successfully achieved targeted embolization; this procedure was usually used to treat focal fistulas (restrictive or late-restrictive types), whereas diffuse fistulas (proliferative type) often underwent non-targeted or palliative embolization. For patients that underwent targeted embolization, the rate of complete or near-complete occlusion on immediate post-treatment digital subtraction angiography was 93.6% (88/94), with a complication rate of 2.1% (2/94), symptom improvement rate of 96.8% (91/94), and retreatment rate of 5.3% (5/94). No serious complications were reported during follow-up.
Conclusion
When successful, targeted embolization of CSDAVF causes low rates of cranial nerve palsy, retreatment, and good clinical outcomes.
6.Differences in Pandemic-Related Factors Associated with Alcohol and Substance Use among Korean Adolescents: Nationwide Representative Study.
Hyunju YON ; Sangil PARK ; Jung U SHIN ; Ai KOYANAGI ; Louis JACOB ; Lee SMITH ; Chanyang MIN ; Jinseok LEE ; Rosie KWON ; Guillaume FOND ; Laurent BOYER ; Sunyoung KIM ; Namwoo KIM ; Sang Youl RHEE ; Jae Il SHIN ; Dong Keon YON ; Ho Geol WOO
Biomedical and Environmental Sciences 2023;36(6):542-548
7.First-Pass Recanalization with EmboTrap II in Acute Ischemic Stroke (FREE-AIS): A Multicenter Prospective Study
Jang-Hyun BAEK ; Byung Moon KIM ; Sang Hyun SUH ; Hong-Jun JEON ; Eun Hyun IHM ; Hyungjong PARK ; Chang-Hyun KIM ; Sang-Hoon CHA ; Chi-Hoon CHOI ; Kyung Sik YI ; Jun-Hwee KIM ; Sangil SUH ; Byungjun KIM ; Yoonkyung CHANG ; So Yeon KIM ; Jae Sang OH ; Ji Hoe HEO ; Dong Joon KIM ; Hyo Suk NAM ; Young Dae KIM
Korean Journal of Radiology 2023;24(2):145-154
Objective:
We aimed to evaluate the efficacy of EmboTrap II in terms of first-pass recanalization and to determine whether it could yield favorable outcomes.
Materials and Methods:
In this multicenter, prospective study, we consecutively enrolled patients who underwent mechanical thrombectomy using EmboTrap II as a front-line device. The primary outcome was the first pass effect (FPE) rate defined by modified Thrombolysis In Cerebral Infarction (mTICI) grade 2c or 3 by the first pass of EmboTrap II. In addition, modified FPE (mFPE; mTICI grade 2b–3 by the first pass of EmboTrap II), successful recanalization (final mTICI grade 2b–3), and clinical outcomes were assessed. We also analyzed the effect of FPE on a modified Rankin Scale (mRS) score of 0–2 at 3 months.
Results:
Two hundred-ten patients (mean age ± standard deviation, 73.3 ± 11.4 years; male, 55.7%) were included. Ninetynine patients (47.1%) had FPE, and mFPE was achieved in 150 (71.4%) patients. Successful recanalization was achieved in 191 (91.0%) patients. Among them, 164 (85.9%) patients underwent successful recanalization by exclusively using EmboTrap II. The time from groin puncture to FPE was 25.0 minutes (interquartile range, 17.0–35.0 minutes). Procedure-related complications were observed in seven (3.3%) patients. Symptomatic intracranial hemorrhage developed in 14 (6.7%) patients. One hundred twenty-three (58.9% of 209 completely followed) patients had an mRS score of 0–2. Sixteen (7.7% of 209) patients died during the follow-up period. Patients who had successful recanalization with FPE were four times more likely to have an mRS score of 0–2 than those who had successful recanalization without FPE (adjusted odds ratio, 4.13;95% confidence interval, 1.59–10.8; p = 0.004).
Conclusion
Mechanical thrombectomy using the front-line EmboTrap II is effective and safe. In particular, FPE rates were high. Achieving FPE was important for an mRS score of 0–2, even in patients with successful recanalization.
8.Cremastranone-Derived Homoisoflavanes Suppress the Growth of Breast Cancer Cells via Cell Cycle Arrest and Caspase-Independent Cell Death
Yeram CHOI ; Sangkyu PARK ; Seul LEE ; Ha-Eun SHIN ; Sangil KWON ; Jun-Kyu CHOI ; Myeong-Heon LEE ; Seung-Yong SEO ; Younghee LEE
Biomolecules & Therapeutics 2023;31(5):526-535
Breast cancer is the most common cancer and a frequent cause of cancer-related deaths among women wordlwide. As therapeutic strategies for breast cancer have limitations, novel chemotherapeutic reagents and treatment strategies are needed. In this study, we investigated the anti-cancer effect of synthetic homoisoflavane derivatives of cremastranone on breast cancer cells. Homoisoflavane derivatives, SH-17059 and SH-19021, reduced cell proliferation through G2/M cell cycle arrest and induced caspase-independent cell death. These compounds increased heme oxygenase-1 (HO-1) and 5-aminolevulinic acid synthase 1 (ALAS1), suggesting downregulation of heme. They also induced reactive oxygen species (ROS) generation and lipid peroxidation. Furthermore, they reduced expression of glutathione peroxidase 4 (GPX4). Therefore, we suggest that the SH-17059 and SH-19021 induced the caspase-independent cell death through the accumulation of iron from heme degradation, and the ferroptosis might be one of the potential candidates for caspase-independent cell death.
10.Use of the Korean Triage and Acuity Scale for poor outcome prediction among emergency department patients with suspected infection
Gwangmin AN ; Sangil KIM ; Youngshin CHO, ; Youngjoo LEE ; Hyeyoung JANG ; Joonbum PARK ; Heajin CHUNG ; Beomsuk SEO ; Youngwha SOHN
Journal of the Korean Society of Emergency Medicine 2023;34(4):350-362
Objective:
The Korean Triage and Acuity Scale (KTAS) is a triage tool for patients in the emergency department (ED). This study aimed to evaluate the ability of the KTAS to predict poor outcomes in South Korean ED patients with a suspected infection. We also compared the effectiveness of KTAS with that of the National Early Warning Score (NEWS) and Modified Early Warning Score (MEWS) in predicting poor outcomes.
Methods:
We conducted a single-center retrospective study that included adult patients with a suspected infection who were admitted to the ED between January 2019 and December 2019. Patients who received a prescription for antibiotics and associated culture tests in the ED were considered to have an infection. Poor outcomes were evaluated by in-hospital mortality, general ward admission, and intensive care unit (ICU) admission. A receiver operating characteristics (ROC) curve analysis was performed to evaluate and compare KTAS, NEWS, and MEWS.
Results:
Of the 4,127 patients in the study, in-hospital mortality was reported in 154 (3.7%) patients. The median KTAS was lower in the non-survivors than in the survivors (2.51 vs. 3.35). Multivariate logistic regression analysis showed that the KTAS was associated with in-hospital mortality, ward admission, and ICU admission. The area under the ROC curve (AUROC) values for predicting in-hospital mortality associated with the KTAS, NEWS, and MEWS were 0.776 (95% confidence interval, 0.747-0.803), 0.829 (0.759-0.811) and 0.739 (0.694-0.786), respectively.
Conclusion
Our results showed that the KTAS was associated with in-hospital mortality, ward admissions, and ICU admissions among ED patients with a suspected infection. Thus, KTAS may be reliable in predicting a poor outcome in ED patients with a suspected infection.

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