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Kim BM, Jeon GS, Choi MJ, Hong NS. Usefulness of transcatheter arterial embolization for eighty-three patients with secondary postpartum hemorrhage: Focusing on difference in angiographic findings. World J Clin Cases 2023; 11:3471-3480. [PMID: 37383902 PMCID: PMC10294178 DOI: 10.12998/wjcc.v11.i15.3471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/13/2023] [Accepted: 04/20/2023] [Indexed: 05/25/2023] Open
Abstract
BACKGROUND Transcatheter arterial embolization (TAE) has been widely used as an effective and a safe treatment method and was often used as an alternative to the surgical management, but there are limited studies on the efficacy and the safety for patients undergoing their secondary postpartum hemorrhage (PPH).
AIM To evaluate the usefulness of TAE for secondary PPH focusing on the angiographic findings.
METHODS We conducted a research from January 2008 to July 2022 on all 83 patients (mean: 32 years, range: 24-43 years) presented with secondary PPH and they were treated with TAE in two university hospitals. The medical records and angiography were retrospective reviewed in order to evaluate the patients’ characteristics, delivery details, clinical status and peri-embolization management, angiography and embolization details, technical/clinical success and complications. The group with active bleeding sign and the group without it were also compared and analyzed.
RESULTS On angiography, 46 (55.4%) patients showed active bleeding signs such as contrast extravasation (n = 37) or pseudoaneurysm (n = 8) or both (n = 1), and 37 (44.6%) patients showed non-active bleeding signs such as only spastic uterine artery (n = 2) or hyperemia (n = 35). In the active bleeding sign group there were more multiparous patients, low platelet count, prothrombin time prolongation, and high transfusion requirements. The technical success rates were 97.8% (45/46) in active bleeding sign group and 91.9% (34/37) in non-active bleeding sign group, and the overall clinical success rates were 95.7% (44/46) and 97.3% (36/37). An uterine rupture with peritonitis and abscess formation occurred to one patient after the embolization, therefore hysterostomy and retained placenta removal were performed which was a major complication.
CONCLUSION TAE is an effective and a safe treatment method for controlling secondary PPH regardless of angiographic findings.
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Affiliation(s)
- Bong Man Kim
- Department of Radiology, Dankook University Hospital, Dankook University College of Medicine, Cheonan-si 31116, Chungcheongnam-do, South Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, College of Medicine, CHA University, Seongnam-si 13496, Gyeonggi-do, South Korea
| | - Min Jeong Choi
- Department of Radiology, Dankook University Hospital, Dankook University College of Medicine, Cheonan-si 31116, Chungcheongnam-do, South Korea
| | - Nam-Soo Hong
- Department of Preventive Medicine, School of Medicine, Kyungpook National University, Daegu 41944, South Korea
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Jeon GU, Jeon GS, Kim YR, Ahn EH, Jung SH. Uterine artery embolization for postpartum hemorrhage with placenta accreta spectrum. Acta Radiol 2023:2841851231154675. [PMID: 37093745 DOI: 10.1177/02841851231154675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
BACKGROUND The reported success rate of uterine artery embolization (UAE) for postpartum hemorrhage (PPH) differs by the cause of bleeding; in some reports, UAE shows less successful results in patients with placenta accreta spectrum (PAS). PURPOSE To evaluate the outcome of UAE for treating PPH associated with PAS. MATERIAL AND METHODS From September 2011 to September 2021, 227 patients (mean age = 34.67±4.06 years; age range = 19-47 years) underwent UAE for managing intractable PPH. Patients were divided into two groups: those with PAS (n = 46) and those without PAS (n = 181). Delivery details, embolization details, and procedure-related outcomes were compared between the two groups. P values <0.05 were considered statistically significant. RESULTS The technical success rate was 96.9% (n = 222) and the clinical success rate was 93.8% (n = 215). There were no significant differences in outcome of UAE between the two patient groups. The technical success rate was 95.7% (n = 44) in patients with PAS and 98.3% (n = 178) in patients without PAS (P = 0.267). The clinical success rate was 91.3% (n = 42) in patients with PAS and 95.6% (n = 173) in patients without PAS (P = 0.269). There were 24 cases of immediate complications, including pelvic pain (n = 20), urticaria (n = 3), and puncture site hematoma (n = 1). No major complication was reported. CONCLUSION UAE is a safe and effective method to control intractable PPH for patients with or without PAS.
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Affiliation(s)
- Go Un Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea
| | - Young Ran Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea
| | - Eun Hee Ahn
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea
| | - Sang Hee Jung
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Republic of Korea
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Ma S, Jeon GS, Kim KA, Kim HC, Kim YM, Lee C. Safety and effectiveness of uterine fibroid embolization in patients with scarred uterus. J Obstet Gynaecol Res 2023; 49:280-288. [PMID: 36251735 DOI: 10.1111/jog.15468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/23/2022] [Accepted: 10/04/2022] [Indexed: 01/19/2023]
Abstract
AIM To evaluate the safety and effectiveness of uterine fibroid embolization (UFE) in patients with a scarred uterus caused by a previous myomectomy or cesarean section. METHODS A total of 140 patients who underwent embolization for symptomatic fibroids were included in this retrospective study. The patients were divided into two groups, those with a history of myomectomy and/or cesarean section (scarred uterus group, n = 56), and those without surgical history involving the uterus (no-scar group, n = 84). Demographics, embolization details, outcomes, and complications were analyzed. RESULTS The overall clinical success rate was 89.28% in the scarred uterus group and 95.24% in the no-scar group. There was no statistical difference in infarction rate or change in fibroid volume in follow-up magnetic resonance imaging between the groups. There was one major complication in the no-scar group, but there was no statistical difference in complications between the groups. The mean follow-up period was 25.9 months. The mean symptom-free time was 27.2 months in the scarred uterus group and 21.9 months in the no-scar group without a significant difference. There were no statistically significant differences in symptom changes, recurrence, and complication rates between the groups. Recurrence seen on imaging or regrowth was more common in the group with myomectomy history. However, there was no significant difference in symptom recurrence rates. CONCLUSION No statistically significant difference in technical and clinical outcomes was observed between the two groups. There was no significant increase in complication rates of UFE in scarred uterus group.
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Affiliation(s)
- Saebyol Ma
- Department of Radiology, CHA Bundang Medical Center, CHA University, College of Medicine, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University, College of Medicine, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Kyoung Ah Kim
- Department of Radiology, CHA Bundang Medical Center, CHA University, College of Medicine, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Hyeon Chul Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, College of Medicine, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Yong Min Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, College of Medicine, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Chan Lee
- Comprehensive Gynecologic Cancer Center, CHA Bundang Medical Center, CHA University, College of Medicine, Seongnam-si, Gyeonggi-do, Republic of Korea
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Ha Y, Kim JH, Cheon J, Jeon GS, Kim C, Chon HJ. Risk of Variceal Bleeding in Patients With Advanced Hepatocellular Carcinoma Receiving Atezolizumab/Bevacizumab. Clin Gastroenterol Hepatol 2022:S1542-3565(22)00735-2. [PMID: 35944830 DOI: 10.1016/j.cgh.2022.07.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 02/07/2023]
Affiliation(s)
- Yeonjung Ha
- Department of Gastroenterology, CHA Bundang Medical Center, CHA University, Gyeonggi-do, South Korea
| | - Jee Hyun Kim
- Department of Gastroenterology, CHA Bundang Medical Center, CHA University, Gyeonggi-do, South Korea
| | - Jaekyung Cheon
- Department of Medical Oncology, CHA Bundang Medical Center, CHA University, Gyeonggi-do, South Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University, Gyeonggi-do, South Korea
| | - Chan Kim
- Department of Medical Oncology, CHA Bundang Medical Center, CHA University, Gyeonggi-do, South Korea.
| | - Hong Jae Chon
- Department of Medical Oncology, CHA Bundang Medical Center, CHA University, Gyeonggi-do, South Korea.
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Chen CS, Cho YJ, Shin JH, Kim JH, Park S, Jeon GS, Ibrahim A, Li HL, Jeong B. Transcatheter arterial embolization for hemorrhage after gynecologic hysterectomy: a multicenter study. Acta Radiol 2022; 63:822-827. [PMID: 33878930 DOI: 10.1177/02841851211010395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Transcatheter arterial embolization (TAE) is not common for hemorrhagic complications after gynecologic hysterectomy. PURPOSE To evaluate the effectiveness and safety of TAE for hemorrhage after hysterectomy for gynecologic diseases. MATERIAL AND METHODS This is a retrospective, multicenter study, which investigated 11 patients (median age = 45 years) who underwent TAE for hemorrhage after gynecologic hysterectomy between 2004 and 2020. RESULTS The median interval between surgery and angiography was one day (range = 0-82 days). Hemodynamic instability and massive transfusion were present in 6 (54.5%) and 4 (36.4%) patients, respectively. CT scans (n = 7) showed contrast extravasation (n = 5), pseudoaneurysm (n = 1), or both (n = 1). On angiography, the bleeding arteries were the anterior division branches of the internal iliac artery (IIA) (n = 6), posterior division branch (lateral sacral artery, n = 1), and inferior epigastric artery (n = 1) in eight patients with active bleeding. In the remaining three patients, angiographic staining without active bleeding foci was observed at the vaginal stump, and the feeders for staining were all anterior division branches of the IIA. Technical and clinical success rates were 100% and 90.9% (10/11), respectively. In one patient, active bleeding focus was successfully embolized on angiography, but surgical hemostasis was performed for suspected bleeding on exploratory laparotomy. Postembolization syndrome occurred in one patient. CONCLUSIONS TAE is effective and safe for hemorrhage after hysterectomy for gynecologic diseases. Angiographic findings are primarily active bleeding, but angiographic staining is not uncommon. A bleeding focus is possible in any branch of the IIA, as well as the arteries supplying the abdominal wall.
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Affiliation(s)
- Cheng Shi Chen
- Department of Radiology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Young-Jong Cho
- Department of Radiology, GangNeung Asan Hospital, Gangneung, Gangwon Province, Republic of Korea
| | - Ji Hoon Shin
- Department of Radiology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, PR China
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, Seoul, Republic of Korea
| | - Jeong Ho Kim
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Suyoung Park
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Alrashidi Ibrahim
- Department of Radiology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Hai-Liang Li
- Department of Radiology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Boryeong Jeong
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, Seoul, Republic of Korea
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Yoon SY, Jeon GS, Jung S. Image-guided placement of totally implanted vascular access device: retrospective analysis of the clinical outcomes and associated risk factors. BMJ Support Palliat Care 2021:bmjspcare-2021-002917. [PMID: 33927012 DOI: 10.1136/bmjspcare-2021-002917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/25/2021] [Accepted: 04/19/2021] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To determine risk factors for catheter survival and complications after image-guided implantation of a totally implanted vascular access device (TIVAD). METHODS A total of 2883 TIVADs (2735 patients, 63.5±13 years old, 1060 men, 1675 women) implanted under guidance by ultrasound and fluoroscopy in our institution from January 2010 to December 2019 were evaluated retrospectively. We used the log rank test and logistic regression to analyse risk factors associated with catheter survival and complications. RESULTS Female patients (n=1778; 61.7%; mean catheter survival days: 780.6 days) and those with a haematological malignancy (n=277; 10.1%; mean catheter survival days: 1019 days) had significantly better catheter survival than male patients (n=1105; 38.3%; mean catheter survival days: 645.9 days) and those with a solid organ malignancy (n=2447; 89.5%; mean catheter survival days: 701 days) (p<0.001 and p=0.003). Patients with haematological malignancies and benign vascular inflammatory disease (n=11; 0.4%) were vulnerable to infection (n=96; 3.3%) (p<0.001 and p=0.004). Thrombotic malfunction (n=38; 1.3%) was significantly more common in females than males (p=0.005). Non-thrombotic malfunction (n=16; 0.6%) showed a significant association with left positioning of the TIVAD (n=410; 14.2%) (p=0.043). Wound dehiscence (n=3; 0.1%) was significantly more frequent in punctured veins other (n=23; 0.8%) than the internal jugular vein (p<0.001). CONCLUSIONS Increased attention should be paid to patients with an underlying haematological malignancy, underlying vascular inflammatory disease, female patients, older patients, those accessed via a vein other than the IJV, those with left positioning of the TIVAD system or those with a prolonged TIVAD maintenance.
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Affiliation(s)
- So Yeon Yoon
- Department of Radiology, Bundang CHA Medical Center, Seongnam, Gyeonggi-do, Korea (the Republic of)
| | - Gyeong Sik Jeon
- Department of Radiology, Bundang CHA Medical Center, Seongnam, Gyeonggi-do, Korea (the Republic of)
| | - Sanghoon Jung
- Department of Radiology, Bundang CHA Medical Center, Seongnam, Gyeonggi-do, Korea (the Republic of)
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Lee HJ, Kim M, Lim BB, Kim YR, Jeon GS, Jung SH. Transcatheter Arterial Embolization in the Management of Postpartum Hemorrhage due to Genital Tract Injury after Vaginal Delivery. J Vasc Interv Radiol 2020; 32:99-105. [PMID: 33158669 DOI: 10.1016/j.jvir.2020.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 08/08/2020] [Accepted: 08/08/2020] [Indexed: 11/25/2022] Open
Abstract
PURPOSE To evaluate efficacy and safety of transcatheter arterial embolization (TAE) in managing postpartum hemorrhage (PPH) due to genital tract injury after vaginal delivery and to investigate factors associated with outcome of TAE. MATERIALS AND METHODS A retrospective review of 43 women (mean age, 32.6 years) who underwent TAE to manage PPH secondary to genital tract injury after vaginal delivery was performed at a single institution between January 2007 and December 2018. Clinical data and outcomes were obtained. Patients were classified into clinical success (n = 39) and failure (n = 4) groups, and comparisons between the groups were performed. RESULTS The clinical success rate of TAE for PPH due to genital tract injury was 90.7%. In the clinical failure group, transfusion volumes were higher (failure vs success: packed red blood cells, 14 pt ± 3.37 vs 6.26 pt ± 4.52, P = .003; platelets, 10.33 pt ± 4.04 vs 2.92 pt ± 6.15, P = .036); hemoglobin levels before the procedure were lower (failure vs success: 7.3 g/dL vs 10.7, P = .016). Periprocedural complications included pulmonary edema (25.6%), fever (23.3%), and pain (9.3%). Twenty-four patients were either followed for > 6 months or answered a telephone survey; 23 (95.8%) recovered regular menstruation, and pregnancy was confirmed in 11 (45.8%). Regarding fertility desires, 7 women attempted to conceive, 6 of whom (85.7%) became pregnant. CONCLUSIONS TAE is an effective and safe method for managing PPH due to genital tract injury after vaginal delivery. Lower hemoglobin levels before the procedure and higher transfusion volumes were associated with clinical failure of TAE.
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Affiliation(s)
- Hyun Jung Lee
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, College of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si 13496, South Korea
| | - Migang Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, College of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si 13496, South Korea
| | - Bo-Bae Lim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, College of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si 13496, South Korea
| | - Young Ran Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, College of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si 13496, South Korea
| | - Gyeong Sik Jeon
- Department of Diagnostic Radiology, CHA Bundang Medical Center, CHA University, College of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si 13496, South Korea
| | - Sang Hee Jung
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, College of Medicine, 59 Yatap-ro, Bundang-gu, Seongnam-si 13496, South Korea.
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Yoon SY, Jeon GS, Lee SJ, Kim DJ, Kwon CI, Park MH. Embolization of pancreatic arteriovenous malformation: A case report. World J Clin Cases 2020; 8:1471-1476. [PMID: 32368539 PMCID: PMC7190961 DOI: 10.12998/wjcc.v8.i8.1471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/09/2020] [Accepted: 04/16/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Pancreatic arteriovenous malformation (AVM) is a rare disease with a number of different reported treatment methods, but there are as yet no established or definite treatments for the disease.
CASE SUMMARY A 43-year-old man visited the hospital due to periumbilical pain. The patient underwent imaging study and laboratory testing for evaluation of cause. Pancreatic AVM associated with pancreatitis was suspected on computed tomography and magnetic resonance imaging. The patient was diagnosed with pancreatic AVM with pancreatitis on imaging study and angiography. Transcatheter arterial embolization with various embolic materials was performed. Follow-up computed tomography scan revealed progressive regression of AVM and improvement of pancreatitis. At two-year follow-up, the patient showed no recurrence of symptom or pancreatitis.
CONCLUSION Transcatheter arterial embolization can be considered an effective treatment modality for selective cases of pancreatic AVM.
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Affiliation(s)
- So Yeon Yoon
- Department of Radiology, CHA Bundang Medical Center, College of Medicine, CHA University, Seongnam-si 13496, Gyeonggi-do, South Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, College of Medicine, CHA University, Seongnam-si 13496, Gyeonggi-do, South Korea
| | - Shin Jae Lee
- Department of Radiology, Research Institute of Radiological Science, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin-si 17046, South Korea
| | - Dae Joong Kim
- Department of Radiology, CHA Bundang Medical Center, College of Medicine, CHA University, Seongnam-si 13496, Gyeonggi-do, South Korea
| | - Chang Il Kwon
- Department of Internal Medicine, Digestive Disease Center, CHA Bundang Medical Center, College of Medicine, CHA University, Seongnam-si 13496, Gyeonggi-do, South Korea
| | - Mi Hyun Park
- Department of Radiology, Dankook University Hospital, Chungcheongnam-do 31116, South Korea
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Abstract
Duodenal variceal bleeding is a rare but potentially life-threatening complication of portal hypertension. Endoscopic therapy is usually the initial treatment option for bleeding duodenal varices, but it is not always feasible or successful. We present a technique of coil-assisted retrograde transvenous obliteration in a patient with duodenal varices originating from the inferior pancreaticoduodenal vein and draining into the right ovarian vein.
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Affiliation(s)
- Shin Jae Lee
- Department of Radiology, CHA Bundang Medical Center, CHA University, Gyeonggi-do, Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University, Gyeonggi-do, Korea
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Affiliation(s)
- Shin Jae Lee
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam-si, Republic of Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam-si, Republic of Korea
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Abstract
To evaluate the outcomes and prognostic factors of endovascular management in immature arteriovenous fistula (AVF) for hemodialysis.From April 2007 to September 2017, 54 patients (male:female = 31:23, mean age 65.63 years, range 33-90 years) who underwent endovascular management for the salvage of immature AVF were retrospectively reviewed. Clinical data, procedural details, and results were evaluated. Primary and secondary patency rates and factors influencing the patency were also analyzed.Technical and clinical success rates were 88.9% (48/54) and 85.2% (46/54), respectively. Mean primary and secondary patency was 42.10 (±8.85) and 91.5 (±14.77) months, respectively. Primary and secondary patency rates were 66% and 89% in 1 year, 66% and 78% in 2 years, and 51% and 78% in 3 years. In multivariate analysis, only brachiocephalic AVF and antegrade access procedures showed significantly shorter primary patency (HR 5.196; 95% CI (1.04-25.77); P = .044, HR 8.096; 95% CI (1.36-48.00); P = .021). There was no statistically significant factor associated with secondary patency in the multivariate study.Endovascular management in immature AVF is safe and effective to make the AVF available. Brachiocephalic AVF and antegrade access procedures are the factors influencing the patency in multivariate analysis.
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Affiliation(s)
- Shin Jae Lee
- Department of Diagnostic Radiology, CHA Bundang Medical Center, College of Medicine, CHA University, Yatap-ro beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do
| | - Gyeong Sik Jeon
- Department of Diagnostic Radiology, CHA Bundang Medical Center, College of Medicine, CHA University, Yatap-ro beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do
| | - Byungmo Lee
- Department of Surgery, Seoul Paik Hospital, College of Medicine, Inje University, Mareunnae-ro, Jung-gu, Seoul, Republic of Korea
| | - Gun Lee
- Department of Thoracic and Cardiovascular Surgery
| | - Jung Jun Lee
- Department of Surgery, CHA Bundang Medical Center, College of Medicine, CHA University, Yatap-ro beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
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Kim CH, Jeon GS, Lee SJ, Kang SH. Embolization of the inferior mesenteric artery for post-partum hemorrhage with a vaginal laceration: A case with unusual collateral supply. J Obstet Gynaecol Res 2016; 42:1878-1880. [PMID: 27718301 DOI: 10.1111/jog.13147] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 06/21/2016] [Accepted: 07/30/2016] [Indexed: 11/28/2022]
Abstract
A 36-year-old primipara woman was referred to the interventional department for management of severe primary post-partum hemorrhage with a vaginal laceration after a normal vaginal delivery. Angiography revealed that the superior rectal branch of the inferior mesenteric artery was one of the origins of persistent vaginal bleeding following embolization of both uterine arteries. The patient was successfully treated by selective embolization without other complications. Our case report highlights that the inferior mesenteric artery should be considered as an unusual extrauterine source for post-partum hemorrhage.
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Affiliation(s)
- Cho Hee Kim
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Shin Jae Lee
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Suk Ho Kang
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
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Kim CH, Lee SJ, Jeon GS, Kang SH, Kim HC. Embolization of Inferior Mesenteric Artery for Intractable Intrapelvic and Vaginal Bleeding After Hysterectomy. J Minim Invasive Gynecol 2016; 23:1191-1194. [PMID: 27449694 DOI: 10.1016/j.jmig.2016.07.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/01/2016] [Accepted: 07/03/2016] [Indexed: 11/17/2022]
Abstract
Branches of the internal iliac artery or ovarian artery are the typical sources of pelvic hemorrhage. The inferior mesenteric artery has been rarely reported as the origin of pelvic bleeding. We present 2 cases of intractable intrapelvic and vaginal bleeding after hysterectomy. One patient underwent a hysterectomy because of uncontrolled postpartum hemorrhage and another underwent a vaginal hysterectomy to treat vaginal prolapse. Both patients were subjected to angiography to control continuous vaginal bleeding after hysterectomy. The angiography revealed that the bleeding originated from the inferior mesenteric artery. Selective embolization of the inferior mesenteric artery successfully controlled the intractable intrapelvic and vaginal bleeding without complications. The inferior mesenteric artery is a potential source of intractable intrapelvic and vaginal bleeding for patients with a lower genital tract injury.
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Affiliation(s)
- Cho Hee Kim
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Shin Jae Lee
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Suk Ho Kang
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Hyeon Chul Kim
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
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Lee D, Park MH, Shin BS, Jeon GS. Multidetector CT diagnosis of non-traumatic gastroduodenal perforation. J Med Imaging Radiat Oncol 2015; 60:182-6. [PMID: 26598795 DOI: 10.1111/1754-9485.12408] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 09/21/2015] [Indexed: 11/29/2022]
Abstract
INTRODUCTION To identify reliable CT features and assess the diagnostic performance of 64-multidetector CT (MDCT) in diagnosing non-traumatic gastroduodenal perforation (GDP). METHODS We retrospectively reviewed 136 CT scans of patients with surgically proven non-traumatic gastrointestinal perforation during 7 years. 92 patients had GDP and 44 patients had other sites of perforation. CT features of perforation were evaluated and the sensitivity, specificity and likelihood ratios of each CT feature were estimated. RESULTS The cause of GDP was peptic ulcer in 90 patients, gastric cancer in one patient, and foreign body of duodenal diverticulum in one patient. Extraluminal gas (97%) was most common CT feature of GDP, following by fluid or fat strand along gastroduodenum (89%), ascites (89%), wall defect and/or ulcer (84%), and wall thickening (72%). Of CT features, wall defect and/or ulcer showed the best positive likelihood ratios for GDP (36.83). Wall thickening also showed high positive likelihood ratios (10.52). Combined, these CT features showed 95% sensitivity and 93% specificity for localization of perforation site of GDP. CONCLUSION MDCT is useful in diagnosis of presence and site of GDP. Wall defect and/or ulcer and wall thickening have a high positive predictive value for localization of perforation site.
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Affiliation(s)
- Dabee Lee
- Department of Radiology, Dankook University Hospital, Cheonan, South Korea
| | - Mi-Hyun Park
- Department of Radiology, Dankook University Hospital, Cheonan, South Korea
| | - Byung Seok Shin
- Department of Radiology, Chungnam National University Hospital, Daejeon, South Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, College of Medicine, CHA University, Seongnam, South Korea
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15
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You S, Kang DK, Jung YS, An YS, Jeon GS, Kim TH. Evaluation of lymph node status after neoadjuvant chemotherapy in breast cancer patients: comparison of diagnostic performance of ultrasound, MRI and ¹⁸F-FDG PET/CT. Br J Radiol 2015; 88:20150143. [PMID: 26110204 PMCID: PMC4651396 DOI: 10.1259/bjr.20150143] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Objective: To evaluate the diagnostic performance of ultrasound, MRI and fluorine-18 fludeoxyglucose positron emission tomography (18F-FDG PET)/CT for the diagnosis of metastatic axillary lymph node (ALN) after neoadjuvant chemotherapy (NAC) and to find out histopathological factors affecting the diagnostic performance of these imaging modalities. Methods: From January 2012 to November 2014, 191 consecutive patients with breast cancer who underwent NAC before surgery were retrospectively reviewed. We included 139 patients with ALN metastasis that was confirmed on fine needle aspiration or core needle biopsy at initial diagnosis. Results: After NAC, 39 (28%) patients showed negative conversion of ALN on surgical specimens of sentinel lymph node (LN) or ALN. The sensitivity of ultrasound, MRI and PET/CT was 50% (48/96), 72% (70/97) and 22% (16/73), respectively. The specificity of ultrasound, MRI and PET/CT was 77% (30/39), 54% (21/39) and 85% (22/26), respectively. The Az value of combination of ultrasound and PET/CT was the highest (0.634) followed by ultrasound (0.626) and combination of ultrasound, MRI and PET/CT (0.617). The size of tumour deposit in LN and oestrogen receptor was significantly associated with the diagnostic performance of ultrasound (p < 0.001 and p = 0.009, respectively) and MRI (p = 0.045 and p = 0.036, respectively). The percentage diameter decrease, size of tumour deposit in LN, progesterone receptor, HER2 and histological grade were significantly associated with the diagnostic performance of PET/CT (p = 0.023, p = 0.002, p = 0.036, p = 0.044 and p = 0.008, respectively). On multivariate logistic regression analysis, size of tumour deposit within LN was identified as being independently associated with diagnostic performance of ultrasound [odds ratio, 13.07; 95% confidence interval (CI), 2.95–57.96] and PET/CT (odds ratio, 6.47; 95% CI, 1.407–29.737). Conclusion: Combination of three imaging modalities showed the highest sensitivity, and PET/CT showed the highest specificity for the evaluation of ALN metastasis after NAC. Ultrasound alone or combination of ultrasound and PET/CT showed the highest positive-predictive value. The size of tumour deposit within ALN was significantly associated with diagnostic performance of ultrasound and PET/CT. Advances in knowledge: This study is about the diagnostic performance of ultrasound, MRI, PET/CT and combination of each imaging modality for the evaluation of metastatic ALN after NAC. Of many histopathological factors, only the size of tumour deposit within ALN was an independent factor associated with the diagnostic performance of ultrasound and PET/CT.
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Affiliation(s)
- S You
- Department of Radiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - D K Kang
- Department of Radiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Y S Jung
- Department of Radiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Y-S An
- Department of Radiology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - G S Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University, College of Medicine, Seongnam, Republic of Korea
| | - T H Kim
- Department of Radiology, Ajou University School of Medicine, Suwon, Republic of Korea
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Shin SP, Park CY, Song JH, Kim HM, Min D, Lee SH, Kang SH, Jeon GS, Lee JH. A case of catamenial hemoptysis treated by bronchial artery embolization. Tuberc Respir Dis (Seoul) 2014; 76:233-6. [PMID: 24920950 PMCID: PMC4050071 DOI: 10.4046/trd.2014.76.5.233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 11/05/2013] [Accepted: 11/21/2013] [Indexed: 11/24/2022] Open
Abstract
Catamenial hemoptysis is a rare condition, characterized by recurrent hemoptysis associated with the presence of intrapulmonary or endobronchial endometrial tissue. Therapeutic strategies proposed for intrapulmonary endometriosis with catamenial hemoptysis consist of medical treatments and surgery. Bronchial artery embolization is a well-established modality in the management of massive or recurrent hemoptysis, but has seldom been used for the treatment of catamenial hemoptysis. We report a case of catamenial hemoptysis associated with pulmonary parenchymal endometriosis, which was successfully treated by a bronchial artery embolization.
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Affiliation(s)
- Suk Pyo Shin
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Chi Young Park
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Ji Hyun Song
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Hong Min Kim
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Daniel Min
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Sang Hwan Lee
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - San Ha Kang
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Gyeong Sik Jeon
- Department of Radiology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Ji-Hyun Lee
- Department of Internal Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea
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Park MH, Cho JS, Shin BS, Jeon GS, Lee B, Lee K. Comparison of internally cooled wet electrode and hepatic vascular inflow occlusion method for hepatic radiofrequency ablation. Gut Liver 2012; 6:471-5. [PMID: 23170152 PMCID: PMC3493728 DOI: 10.5009/gnl.2012.6.4.471] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Revised: 12/03/2011] [Accepted: 12/30/2011] [Indexed: 01/28/2023] Open
Abstract
Background/Aims Various strategies to expand the ablation zone have been attempted using hepatic radiofrequency ablation (RFA). The optimal strategy, however, is unknown. We compared hepatic RFA with an internally cooled wet (ICW) electrode and vascular inflow occlusion. Methods Eight dogs were assigned to one of three groups: only RFA using an internally cooled electrode (group A), RFA using an ICW electrode (group B), and RFA using an internally cooled electrode with the Pringle maneuver (group C). The ablation zone diameters were measured on the gross specimens, and the volume of the ablation zone was calculated. Results The ablation zone volume was greatest in group B (1.82±1.23 cm3), followed by group C (1.22±0.47 cm3), and then group A (0.48±0.33 cm3). The volumes for group B were significantly larger than the volumes for group A (p=0.030). There was no significant difference in the volumes between groups A and C (p=0.079) and between groups B and C (p=0.827). Conclusions Both the usage of an ICW electrode and hepatic vascular occlusion effectively expanded the ablation zone. The use of an ICW electrode induced a larger ablation zone with easy handling compared with using hepatic vascular occlusion, although this difference was not statistically significant.
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Affiliation(s)
- Mi-Hyun Park
- Department of Radiology, Dankook University Hospital, Dankook University College of Medicine, Cheonan, Korea
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18
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Lee SA, Kim DH, Jeon GS. Covered bronchial stent insertion to manage airway obstruction with hemoptysis caused by lung cancer. Korean J Radiol 2012; 13:515-20. [PMID: 22778577 PMCID: PMC3384837 DOI: 10.3348/kjr.2012.13.4.515] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Accepted: 11/07/2011] [Indexed: 11/18/2022] Open
Abstract
Malignant airway obstruction and hemoptysis are common in lung cancer patients. Recently, airway stent is commonly used to preserve airway in malignant airway obstruction. Hemoptysis can be managed through various methods including conservative treatment, endobronchial tamponade, bronchoscopic intervention, embolization and surgery. In our case studies, we sought to investigate the effectiveness of airway stents for re-opening the airway as well as tamponade effects in four patients with malignant airway obstruction and bleeding caused by tumors or lymph node invasions.
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Affiliation(s)
- Sae Ah Lee
- Department of Radiology, Dankook University College of Medicine, Dankook University Hospital, Cheonan 330-715, Korea
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Shin BS, Park MH, Jeon GS, Lee BM, Lee K, Kang DY, Kang SG, Han YM. Use of covered stents in the central vein: a feasibility study in a canine model. J Endovasc Ther 2011; 18:802-10. [PMID: 22149230 DOI: 10.1583/11-3566.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
PURPOSE To evaluate the feasibility of using covered stents vs. bare stents in a model of central vein stenosis with an arteriovenous graft created to mimic the conditions in hemodialysis patients. METHODS In 7 mongrel dogs, an expanded polytetrafluoroethylene-covered nitinol stent was placed in one common iliac vein and a bare stent was placed in the contralateral vein. Arteriovenous grafts were created bilaterally between the common femoral artery and vein to induce endothelial damage. Neointima formation in the covered stents was compared to the bare stents at 12 weeks using microscopy and histochemical staining. RESULTS Two dogs were excluded due to thrombosis and infection of the arteriovenous grafts, but all stents in the remaining 5 dogs were patent. Smooth, complete neointimal coverage was observed on the inner surface of all the covered stents without intraluminal thrombus. In contrast, incomplete neointimal coverage was seen in all bare stents, with small focal thrombi adhering to the neointima on 3 bare stents. Focal nodular neointimal hyperplasia with denudation of the endothelium was observed in only 2 bare stents. Mean neointimal thickening was significantly greater in the covered stents. Eccentric neointimal thickening was observed at the inflow and outflow segments of both types of stents. CONCLUSION Covered stents are technically feasible for the treatment of central vein stenosis, and they demonstrate complete, smooth neointimal coverage in normal central veins, but they also display greater neointimal thickening than bare stents.
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Affiliation(s)
- Byung Seok Shin
- Department of Radiology, Chungnam National University Hospital, Daejeon, South Korea
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20
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Shin BS, Park MH, Jeon GS. Outcome and prognostic factors of spontaneous ruptured hepatocellular carcinoma treated with transarterial embolization. Acta Radiol 2011; 52:331-5. [PMID: 21498371 DOI: 10.1258/ar.2010.100369] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Rupture of hepatocellular carcinoma (HCC) is a life-threatening condition accompanied by hemorrhage. Transarterial embolization/chemoembolization (TAE/TACE) can be used as the first-line treatment to achieve initial homeostasis. PURPOSE To investigate the outcome of TAE/TACE for spontaneous ruptured HCC and to determine the prognostic factors affecting survival. MATERIAL AND METHODS We retrospectively reviewed the clinicoradiologic data of 47 patients (8 women, 39 men; median age 64.4 years) with serum bilirubin levels <3.0 mg/dL that underwent TAE/TACE for ruptured HCC between January 2004 and June 2010. Survival rates were estimated using the Kaplan-Meier method and prognostic factors of poor survival were obtained by univariate and multivariate analyses. RESULTS The clinical success rate of TAE/TACE was 94% (44/47). The median survival time was 179.6 days. The 1-month, 3-month, 6-month, and 12-month survival rates were 75%, 54%, 48%, and 43%, respectively. Old age, a previous history of TACE for HCC, low initial hemoglobin level, higher blood transfusion requirement, Child-Pugh class C, high serum bilirubin level, low serum albumin level, prolonged prothrombin time, high serum creatinine level on admission, presence of encephalopathy, severe ascites, lobar TAE/TACE, presence of portal vein thrombosis, and tumors involving both lobes were associated with poor survival. Multivariate analysis revealed that higher blood transfusion requirement, Child-Pugh class C, presence of portal vein thrombosis, and tumors involving both lobes were significant predictors of poor survival. CONCLUSION TAE/TACE is effective for achieving initial hemostasis, which is critical to survival. Regardless of successful TAE/TACE, the survival rate in patients with Child-Pugh class C remains poor. Portal vein thrombosis and tumor extent are significant image parameters for predicting survival after TAE/TACE for ruptured HCC.
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Affiliation(s)
- Byung Seok Shin
- Department of Radiology, Chungnam National University Hospital, Daejeon
| | - Mi-Hyun Park
- Department of Radiology, Dankook University Hospital, Anseodong, Cheonan, Chungnam, South Korea
| | - Gyeong Sik Jeon
- Department of Radiology, Dankook University Hospital, Anseodong, Cheonan, Chungnam, South Korea
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21
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Lee SA, Lee YS, Lee KS, Jeon GS. Congenital intrahepatic portosystemic venous shunt and liver mass in a child patient: successful endovascular treatment with an amplatzer vascular plug (AVP). Korean J Radiol 2010; 11:583-6. [PMID: 20808706 PMCID: PMC2930171 DOI: 10.3348/kjr.2010.11.5.583] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2010] [Accepted: 04/13/2010] [Indexed: 11/15/2022] Open
Abstract
A congenital intrahepatic portosystemic shunt is a rare anomaly; but, the number of diagnosed cases has increased with advanced imaging tools. Symptomatic portosystemic shunts, especially those that include hyperammonemia, should be treated; and various endovascular treatment methods other than surgery have been reported. Hepatic masses with either an intra- or extrahepatic shunt also have been reported, and the mass is another reason for treatment. Authors report a case of a congenital intrahepatic portosystemic shunt with a hepatic mass that was successfully treated using a percutaneous endovascular approach with vascular plugs. By the time the first short-term follow-up was conducted, the hepatic mass had disappeared.
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Affiliation(s)
- Sae Ah Lee
- Department of Radiology, Dankook University College of Medicine, Dankook University Hospital, Chungcheongnam-do, Korea
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22
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Abstract
Hemoptysis in patients with lung cancer is not uncommon and sometimes have dangerous consequences. Hemoptysis has been managed with various treatment options other than surgery and medicine, such as endobronchial tamponade, transcatheter arterial embolization and radiation therapy. However, these methods can sometimes be used only temporarily or are not suitable for a patient's condition. We present a case in which uncontrollable hemoptysis caused by central lung cancer was successfully treated by inserting a covered self-expanding bronchial stent. The patient could be extubated and was able to undergo further palliative therapy. No recurrent episodes of hemoptysis occurred for the following three months. As our case, airway stenting is a considerable option for the tamponade of a bleeding lesion that cannot be successfully managed with other treatment methods and could be used to preserve airway patency in a select group of patients.
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Affiliation(s)
- In Hee Chung
- Department of Radiology, Dankook University College of Medicine, Cheonan, Korea
| | - Mi-hyun Park
- Department of Radiology, Dankook University College of Medicine, Cheonan, Korea
| | - Doh Hyung Kim
- Division of Pulmonology and Allergy, Department of Internal Medicine, Dankook University College of Medicine, Cheonan, Korea
| | - Gyeong Sik Jeon
- Department of Radiology, Dankook University College of Medicine, Cheonan, Korea
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Jeon GS, Won JH, Lee BM, Kim JH, Ahn HS, Lee EJ, Park SI, Park SW. The Effect of Transarterial Prostate Embolization in Hormone-induced Benign Prostatic Hyperplasia in Dogs: A Pilot Study. J Vasc Interv Radiol 2009; 20:384-90. [DOI: 10.1016/j.jvir.2008.11.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 11/05/2008] [Accepted: 11/10/2008] [Indexed: 12/17/2022] Open
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Kang DK, Jeon GS, Yim H, Jung YS. Diagnosis of the intraductal component of invasive breast cancer: assessment with mammography and sonography. J Ultrasound Med 2007; 26:1587-1600. [PMID: 17957053 DOI: 10.7863/jum.2007.26.11.1587] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE The aim of this study was to investigate mammographic and sonographic features and their sensitivities for depiction of the intraductal component associated with invasive ductal carcinoma (IDC). METHODS During a 1-year period, 132 patients with IDC underwent surgical treatment. All patients underwent mammography and high-resolution sonography, and the findings were reported according to the American College of Radiology's Breast Imaging Reporting and Data System lexicon. Tumors were classified as "pure IDC" and "IDC with an intraductal component" by histopathologic evaluation. We compared mammographic and sonographic features between the above 2 groups and attempted to correlate them with histopathologic findings. We also investigated separate and combined sensitivities, specificities, and accuracies of both mammography and breast sonography for showing intraductal components. Finally, imaging measurements were compared with pathologic measurements. RESULTS One hundred four (79%) of the 132 IDCs contained an intraductal component. Patients with IDC with an intraductal component showed calcifications on mammography and showed an echogenic halo, duct dilatation, calcifications, and increased vascularity in surrounding tissue on sonography more frequently than patients with pure IDC. The sensitivities of mammography, sonography, and their combined assessment for detection of an intraductal component were 55%, 80%, and 86%, respectively. The combined assessment (r = 0.90) measured the extent of the tumor more accurately than mammography (r = 0.71) or sonography (r = 0.79) separately. CONCLUSIONS Combined assessment with mammography and sonography offers more accurate information for the presence of an intraductal component and the extent of a tumor than each separate assessment.
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Affiliation(s)
- Doo Kyoung Kang
- Department of Diagnostic Radiology, Ajou University, School of Medicine, San 5, Woncheondong, Yeongtong-gu, Suwon, Kyongi-do 442-749, Korea.
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Park SW, Lee SH, Kim CH, Jeon GS, Hong SJ, Yi JG, Jeon HJ. Inhibition of pseudointimal hyperplasia in swine TIPS models: the efficacy of local delivery of paclitaxel using a perforated balloon catheter. Br J Radiol 2007; 80:702-7. [PMID: 17928498 DOI: 10.1259/bjr/18259234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The aim of this study was to investigate the efficacy and feasibility of local delivery of paclitaxel to inhibit pseudointimal hyperplasia/intimal hyperplasia in swine transjugular intrahepatic portosystemic shunt (TIPS) models TIPS were created in seven healthy domestic swine (15-20 kg). Before TIPS stent insertion, we performed a short-term infusion of paclitaxel (treatment group: n = 4) and saline (control group: n = 3) into the TIPS tract using a balloon catheter in which two 0.010 inch holes were created on opposite sides of the balloon. Paclitaxel or saline was given to all animals via the hepatic parenchymal and venous outflow tract. The animals were followed for up to two weeks and then killed. Gross and histological evaluations of the shunts were performed, and the maximum pseudointimal/intimal hyperplasia thicknesses were calculated for each animal The average infusion time of paclitaxel or saline was 7.6 min (6-9 min). At gross and histological evaluation, considerable pseudointimal hyperplasia had formed in the control group and statistically significant differences were found upon microscopic evaluation in the maximum pseudointimal hyperplasia thickness between the control (2.41 mm, range 1.7-3.16 mm) and animals receiving paclitaxel (0.63 mm, range 0.42-0.98 mm, p<0.05) Local delivery of paclitaxel at the time of TIPS creation may have been effective in reducing pseudointimal/intimal hyperplasia in swine TIPS models.
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Affiliation(s)
- S W Park
- Department of Radiology, Konkuk University Hospital, Seoul, Korea
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Kim BJ, Hong H, Holme P, Jeon GS, Minnhagen P, Choi MY. XY model in small-world networks. Phys Rev E Stat Nonlin Soft Matter Phys 2001; 64:056135. [PMID: 11736042 DOI: 10.1103/physreve.64.056135] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2001] [Indexed: 05/23/2023]
Abstract
The phase transition in the XY model on one-dimensional small-world networks is investigated by means of Monte Carlo simulations. It is found that long-range order is present at finite temperatures, even for very small values of the rewiring probability, suggesting a finite-temperature transition for any nonzero rewiring probability. Nature of the phase transition is discussed in comparison with the globally coupled XY model.
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Affiliation(s)
- B J Kim
- Department of Theoretical Physics, Umeå University, 901 87 Umeå, Sweden
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Seo JH, Haam YG, Park SW, Kim DW, Jeon GS, Lee C, Hwang DH, Kim YS, Cho SS. Oligodendroglia in the avian retina: immunocytochemical demonstration in the adult bird. J Neurosci Res 2001; 65:173-83. [PMID: 11438986 DOI: 10.1002/jnr.1140] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Immunohistochemical techniques were used in conjunction with an avian-specific probe for oligodendrocyte (OLG) marker, the antibody for transferrin binding protein (TfBP), to study the characteristics and distribution of OLGs in the retina of chickens and quails. For comparison, other antibodies such as myelin basic protein, Rip, and those for labeling Müller cells and microglia were used. A large population of OLGs was found to be distributed throughout the retina, with the distinct pattern of a central-to-peripheral gradient. It was possible to detect a spectrum of OLG morphology that bore a resemblance to the subtype of the mammalian central nervous system. In addition to these mature OLGs, limited numbers of TfBP-positive (TfBP(+)) cells with the morphology of immature OLGs were found in the immediate vicinity of the optic head. The majority of OLGs appeared in the ganglion cell layer throughout the retina, whereas OLGs in the nerve fiber layer were seen mainly in the central zone of the retina, near the optic nerve head. Double-labeling experiments showed that OLGs were associated with myelin only in the central region, where the majority of retinal OLGs occurred, but not toward the periphery of the retina. The present study is the first comprehensive analysis of the morphological features and spatial distribution of OLGs in the adult avian retina and provides in vivo evidence for the existence of a substantial population of both mature and immature OLGs in the retina of adult birds. The putative functions of TfBP(+) OLGs including myelination and the tropic role of the ganglion cells are discussed in conjunction with the physical properties of TfBP and structural characteristics of the avascular retina of birds.
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Affiliation(s)
- J H Seo
- Department of Anatomy, Seoul National University College of Medicine, Seoul, Korea
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Lee C, Kim DW, Jeon GS, Roh EJ, Seo JH, Wang KC, Cho SS. Cerebellar alterations induced by chronic hypoxia: an immunohistochemical study using a chick embryonic model. Brain Res 2001; 901:271-6. [PMID: 11368977 DOI: 10.1016/s0006-8993(01)02362-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A model of fetal aerogenic hypoxia was developed in which fertilized chicken eggs were half-painted with melted wax and incubated under normal conditions. The cerebellum of the hypoxic chick embryos at a later stage of development (E18-20) was analyzed immunochemically. Hypoxic insult resulted in considerable neurocytological deficits of the Purkinje cells and altered glial fibrillary acid protein (GFAP) immunoreactivity in the fetal cerebellum. Purkinje cells in the hypoxic embryos were marked by small cell size, poorly developed dendrites, low cell density, deletion and ectopia. On the other hand, enhanced GFAP immunoreactivity was found in astrocytes and Bergmann glia of the hypoxic embryos. Our results indicate that chronic hypoxia in the chick fetus can cause severe disorders of neuronal development as well as glial activation. We suggest that our hypoxic model of chick embryos could be an accessible animal model for further elucidating fetal hypoxia.
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Affiliation(s)
- C Lee
- Department of Anatomy, Seoul National University College of Medicine, 110-799, Seoul, South Korea
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Abstract
In this study, we demonstrated the c-myb mRNA expression in the adult rat brain using an in situ hybridization technique. We found c-myb mRNA signals in the various regions of the forebrain and midbrain including the cerebral cortex, thalamus, hippocampus, hypothalamus, superior and inferior colliculi and central gray. In the cerebellum, a diffuse signal was found in the granular layer while some positive cells were detected in the molecular layer as well. In addition, a number of cells showed intense signals in many nuclei of the medulla oblongata. The constitutive expression of c-myb mRNA in the different kinds of neural cells suggests that this gene might be involved in the normal function of these neurons.
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Affiliation(s)
- D H Shin
- Department of Anatomy, Dankook University College of Medicine, Chonan, South Korea
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Ryu JR, Shin CY, Park KH, Jeon GS, Kim H, Kim W, Dailey JW, Jobe PC, Cho SS, Ko KH. Effect of repeated seizure experiences on tyrosine hydroxylase immunoreactivities in the brain of genetically epilepsy-prone rats. Brain Res Bull 2000; 53:777-82. [PMID: 11179842 DOI: 10.1016/s0361-9230(00)00373-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The genetically epilepsy-prone rat (GEPR) is a model of generalized tonic/clonic epilepsy, and has functional noradrenergic deficiencies that act as partial determinants for the seizure predisposition and expression. The present study investigated the effect of repeated seizure experiences by acoustic stimulation (110 dB, 10 times) on the immunoreactivities of tyrosine hydroxylase (TH), a rate-determining enzyme in the synthesis of norepinephrine, in brain regions of GEPRs. TH immunoreactivity in locus coeruleus, the major noradrenergic nucleus in brain, was lower in GEPRs than control Sprague-Dawley rats. It was also decreased in several regions including inferior colliculus of GEPRs. Repeated experiences of audiogenic seizures further decreased TH immunoreactivities in locus coeruleus and inferior colliculus of GEPRs. The results from the present study suggest that the lower immunoreactivities of TH in locus coeruleus and inferior colliculus contribute, at least in part, to the noradrenergic deficits in GEPRs, and repeated seizure experiences further intensified these noradrenergic deficits, which may be related to the altered seizure expression by repetitive audiogenic seizure in GEPRs.
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Affiliation(s)
- J R Ryu
- Department of Pharmacology, Seoul National University, Seoul, South Korea
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31
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Abstract
We applied a variety of methods to follow the course of kainic acid (KA) induced retinal apoptosis, especially with regard to the spatial and temporal aspects. At 24 h after KA injection, a massive cell increase, which showed terminal transferase-mediated dUTP nick-end-labeling technique positive signals, was observed in all of the retinal layers, with the exception of the outer nuclear and photoreceptor layers. Electron microscopy further confirmed that these cells might be apoptotic body ingesting phagocytes, whose function seemed to correlate with bcl-2 mRNA up-regulation. When histochemical studies were performed to determine the cellular identity of the phagocytes, the microglia were thought to be the one and only type of phagocytes involved in the KA-induced retinal apoptosis. In conclusion, we demonstrated that after KA injection, microglia were the only phagocytes to participate in clearing apoptotic debris from the inner retinal layers, and that their function might correlate with the change in expression of the bcl-2 gene family.
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Affiliation(s)
- D H Shin
- Department of Anatomy, Dankook University College of Medicine, Chonan, South Korea
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Abstract
The constitutive expression of heat shock protein 108 (HSP108) mRNA is mapped in a normal chicken central nervous system using in situ hybridization technique. HSP108 mRNAs were found to be mainly localized in the small neuroglial cells of various regions of the brain, although some neuronal cells also showed positive signals. This tendency is observed to be more marked in the cerebellum; HSP108 signals were not found in the Purkinje cells, but in Bergmann glial cells and oligodendrocytes. Although neuronal cells in the deep cerebellar nuclei and the molecular layer showed occasional HSP108 signals, the expression pattern of HSP108 mRNA is different from homologous HSP90 that is mostly expressed in neurons, but rather similar to that of TfBP immunoreactivity, a new member of the HSP108 family. The constitutive neuroglial localization of HSP108 could suggest that HSP108 may play an important role in the normal metabolism of neuroglial cells in the chicken brain.
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Affiliation(s)
- D H Shin
- Department of Anatomy, Dankook University College of Medicine, Chonan, South Korea
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Kim BG, Shin DH, Jeon GS, Seo JH, Kim YW, Jeon BS, Cho SS. Relative sparing of calretinin containing neurons in the substantia nigra of 6-OHDA treated rat parkinsonian model. Brain Res 2000; 855:162-5. [PMID: 10650144 DOI: 10.1016/s0006-8993(99)02374-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A certain calcium binding protein (CaBP) has been known to exert a neuroprotective effect in various neurodegenerative diseases. Using the 6-OHDA induced rat Parkinsonian model, we examined if calretinin (CR), one of CaBP family, could play the similar role in the Parkinson's disease because CR is profusely localized in dopaminergic neurons of the substantia nigra pars compacta (SNPC) of the rat. Employing immunohistochemical analyses, we found that the survival rate of CR neurons was significantly higher than that of tyrosine hydroxylase (TH) neurons in the SNPC of the Parkinsonian rat. Furthermore double-labeled fluorescent microscopy revealed that almost all surviving TH neurons were also positive to CR. Our data suggest that CR-positive neurons are less vulnerable to 6-OHDA and CR in the dopaminergic neurons may have a protective function for survival of these neurons in the experimentally induced Parkinsonian rat.
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Affiliation(s)
- B G Kim
- Department of Anatomy, Seoul National University College of Medicine, Yongon-Dong, Chongno-Gu, Seoul, South Korea
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Shin DH, Kim S, Lee WJ, Park KH, Jeon GS, Lee KH, Baik SH, Cho SS. Spatial and temporal expression of UDP-galactose: ceramide galactosyl transferase mRNA during rat brain development. Anat Embryol (Berl) 1999; 200:193-201. [PMID: 10424876 DOI: 10.1007/s004290050272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We studied the expression of UDP-galactose: ceramide galactosyl transferase (CGT) mRNA in postnatal rat brains using an in situ hybridization technique. From P0 to P16, there was a defined temporal and spatial pattern to the earliest acquisition of CGT mRNA expression. In the forebrain, CGT mRNA-expressing (CGT+) cells were first detected in regions outside the subventricular zone around the lateral ventricle at P2. Cells in the external capsule, internal capsule and corpus callosum were later found to be CGT-positive. At P8 to P16, CGT+ cells were found in the thalamus, striatum, occipital and frontal cortex. In the case of midbrain and hindbrain, the first CGT+ signals were detected in the medullary raphe of the medulla oblongata at P0. CGT+ cells were subsequently located in the cerebellum, midbrain and pons from P4 to P16. That is, in regions closer to the areas in which CGT+ cells were first found, CGT mRNA expression was observed much earlier. These findings support the notion that there are at least two discrete waves of CGT mRNA signal expression in the forebrain and hindbrain.
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Affiliation(s)
- D H Shin
- Department of Anatomy, Seoul National University College of Medicine, Korea
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Won MH, Kang TC, Jeon GS, Lee JC, Kim DY, Choi EM, Lee KH, Choi CD, Chung MH, Cho SS. Immunohistochemical detection of oxidative DNA damage induced by ischemia-reperfusion insults in gerbil hippocampus in vivo. Brain Res 1999; 836:70-8. [PMID: 10415406 DOI: 10.1016/s0006-8993(99)01611-x] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
There is much evidence to suggest that ischemic injury occurs during the reperfusion phase of ischemia-reperfusion insults, and that the injury may be due to reactive-oxygen-species (ROS)-mediated oxidative events, including lipid peroxidation and DNA damage. However, oxidative DNA damage has until now not been examined in situ. In the present study, we report for the first time observation of cell type- and region-specific oxidative DNA damages in 5 min transient ischemic model by immunohistochemical methods, using monoclonal antibody against 8-hydroxy-2'-deoxyguanosine (8-OHdG), an oxidative DNA product. The cell types containing 8-OHdG immunoreactivity were neurons, glia and endothelial cells in the hippocampus. The 8-OHdG immunoreactivity was present in the nucleus but not the cytoplasm of these cells. The level of 8-OHdG in CA1 increased significantly (P<0.05) at the end of 30 min after ischemia, but there was no increase within CA2 and CA3 areas. The 8-OHdG levels in the hippocampus increased significantly (about fourfold) after 3 h of reperfusion and remained significantly (P<0.01) elevated for at least 12 h. At 4 days after ischemia, 8-OHdG levels in the CA2 and CA3 areas decreased to levels of the sham without neuronal loss, while disappearance of 8-OHdG immunoreactivity in the CA1 coincided with neuronal death in this area. These findings strongly suggest that ischemia-induced DNA damage evolves temporally and spatially, and that oxidative DNA damage may be involved in delayed neuronal death in the CA1 region.
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Affiliation(s)
- M H Won
- Department of Anatomy, College of Medicine, Hallym University, Chunchon, South Korea
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Kang TC, Seo J, Jeon GS, Shin DH, Kim YW, Lim HS, Lee KH, Hwang DH, Won MH, Cho SS. Are substance P neurons of the paraventricular nucleus related to the osmotic regulation in the Mongolian gerbil? Brain Res 1999; 820:101-4. [PMID: 10023036 DOI: 10.1016/s0006-8993(98)01363-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In recent years, the gerbil has been used as an experimental animal for study osmotic regulation, because of its inherent high degree of water re-uptake in kidney. Many evidences to explain this characteristic accumulated on the kidney level, it do not, however, manifest what concerns on hypothalmo-hypophyseal level. In this study, we have focused on the difference between the colchicine treated gerbil and rat in distributions of substance P (SP), which is known to have antidiuretic property. Unlike rat, in which a few SP+ neuron is present, SP+ neurons were abundantly observed in the paraventricular nucleus (PVN) of the gerbil. Furthermore SP+ cells in PVN were manifested in dehydrated gerbils, in spite of non-colchicine treatment. Therefore, we suggest that the abundant SP+ neurons in PVN may be a clue to address the neuroendocrinal mechanism concerning the high degree of osmotic regulation in this animal.
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Affiliation(s)
- T C Kang
- Department of Anatomy, College of Medicine, Hallym University, Chunchon 220-702, South Korea
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Kang TC, Jeon GS, Kim HJ, Shin DH, Lee KH, Lee HY, Yoo YB, Lee BL, Cho SS. Rat osteopontin antibody is cross-reactive to a novel myelin-associated protein in chick. Brain Res 1999; 818:527-30. [PMID: 10082841 DOI: 10.1016/s0006-8993(98)01265-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Osteopontin (OPN) was initially identified as glycosylated phosphoprotein in bones of vertebrates. Recently, OPN is reported to express in the primitive neuroepithelia of early chick embryonic hindbrain. We have demonstrated that rat OPN is immunohistochemically localized in the white matter of chick CNS. We have further confirmed the specificity of OPN cross-immunoreaction in myelin using demyelinated optic nerve induced by lysophosphatidylcholine (LPC), where the intensity of immunoreaction was closely related to the degree of demyelination. Immunoblot analyses showed that rat OPN antibody recognized a protein with molecular weights of approximately 47 kDa from chick CNS. Our data suggest that the antigen recognized by rat OPN is a previously undescribed myelin-associated protein in the chick CNS.
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Affiliation(s)
- T C Kang
- Department of Anatomy, College of Medicine, Seoul National University, Yongon-Dong, Chongno-Gu, Seoul 110-799, South Korea
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Jeon GS, Choi MY, Yang S. Coulomb gaps in one-dimensional spin-polarized electron systems. Phys Rev B Condens Matter 1996; 54:R8341-R8344. [PMID: 9984590 DOI: 10.1103/physrevb.54.r8341] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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