• Asian Pacific Journal of Cancer Prevention
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• 제16권3호
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• pp.1191-1196
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• 2015

Background: Epidermal growth factor-like domain multiple 7 (EGFL7), recently identified as a secreted protein regulated by oxygen exposure, plays a critical role in promoting metastasis of hepatocellular carcinoma (HCC). Transcatheter arterial embolization (TAE) is widely used for treatment of HCC, resulting in hypoxia in tumors and surrounding liver tissues. Accordingly, we proposed the hypothesis that there could be a relationship between expression of EGFL7 and response to TAE. Materials and Methods: We established a rabbit VX2 liver tumor model using percutaneous puncture technique guided by computed tomography. TAE and sham embolization were performed and the results were confirmed by MRI 3 weeks after inoculation. We investigated the EGFL7 expression of the two groups at 6h and 3 days after intervention by means of immunohistochemistry and Western blotting. Results: Immunohistochemical staining demonstrated that the levels of EGFL7 protein significantly increased in the TAE-treated tumors compared with the control group at 6 hours (P=0.031) and 3 days (P=0.020) after intervention. Meanwhile, the relative EGFL7 protein detected in TAE group also up-regulated compared with the control group at 6 hours (P=0.020) and 3 days (P=0.024) after intervention. Conclusions: This study reveals an increase of EGFL7 expression in rabbit VX2 liver tumors after TAE. The role of EGFL7 in HCC, especially its biological behavior after TAE, needs further investigation.

• Advances in pediatric surgery
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• 제6권2호
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• pp.143-148
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• 2000

Pseudoaneurysm of the splenic artery may arise from a vascular erosion by a surrounding inflammatory processes in acute and chronic pancreatitis. Rupture of the pseudoaneurysm may threaten the patient's life. Conservative management for massive hemorrhage may cause 100 percent mortality and even with prompt therapy there is a high mortality. Preoperative detection of bleeding source is desirable because of the difficult identification of the bleeding site at laparotomy. Angiographic identification and embolization of the hemorrhagic vessels in selected cases may obviate the risk of urgent surgery. The authors have recently managed a case of ruptured splenic artery pseudoaneurysm combined with a pancreatic pseudocyst in a 6 years old boy. A bolus enhanced CT scan and angiography confirmed the diagnosis. We managed this child successfully with the urgent transcatheter arterial embolization followed by elective surgery.

• Journal of Trauma and Injury
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• 제34권3호
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• pp.198-202
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• 2021

Super-selective renal artery embolization is an increasingly popular technique for the management of traumatic, low-grade renal trauma. When performed in distal arterial branches, this intervention enables tissue preservation and arrest of hemorrhage, but it may not be practical in cases of multifocal, high-grade renal injuries. In such cases, surgical nephrectomy remains the more common treatment modality to ensure hemodynamic control. We present the unique case of a patient who presented in hemorrhagic shock following a major trauma that resulted in a grade 5 renal injury treated with complete renal artery embolization using Gelfoam, resulting in hemodynamic stabilization. Interestingly, imaging 1 month after embolization revealed residual enhancement of the inferior pole of the kidney, suggesting reconstitution of flow and partial renal salvage. Ultimately, transcatheter "nephrectomy" with careful selection of a temporary embolic agent may serve as a safe and efficient alternative to surgical nephrectomy with the added possibility of preserving partial renal perfusion and function in the emergent setting.

• Journal of Trauma and Injury
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• 제35권4호
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• pp.287-290
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• 2022

Gastric artery bleeding after blunt trauma is rare. In such cases, if vital signs are stable, angiographic embolization may be performed. Although gastric artery embolization is known to be safe due to its anatomical properties, complications may occur. We report a case of gastric necrosis after gastric artery embolization in a patient with blunt abdominal trauma. The 55-year-old male patient was found with gastric arterial bleeding after a traffic accident. His vital signs were stable, and gastric artery embolization was performed. Gastric necrosis was subsequently found, which was treated surgically.

• Tuberculosis and Respiratory Diseases
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• 제58권1호
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• pp.68-73
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• 2005

폐격리증 치료의 고식적인 방법에는 폐엽 절제술이 있고 덜 침습적인 방법으로는 기형혈관을 동맥색전술로 폐색시키는 방법이 있다. 최근 국내에서 폐격리증을 동맥색전술만으로 치료한 증례가 있으나 모두 소아에서 치료한 경우였다. 저자들은 17세 남자 환자에서 폐격리증을 젤폼과 코일을 이용한 동맥 색전술로 특별한 합병증 없이 치료 하였고 6개월 후 흉부전산화 단층촬영으로 추적 관찰 하였기에 문헌 보고하는 바이다.

• Tuberculosis and Respiratory Diseases
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• 제40권2호
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• pp.165-170
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• 1993

연구배경 : 대량 객혈은 기도폐색의 위험이 높은 응급 상황이므로, 지혈을 위한 방법이 즉시 동원되어야 한다. 기관지동맥등의 폐순환동맥 색전술은 대량 객혈의 출혈부위 확인과 함께 신속히 지혈시킬 수 있는 방법이다. 저자들은 대량 객혈 환자에서 동맥 색전술을 시행하여 지혈의 효과와 출혈의 재발에 대하여 경과 관찰하였다. 방법 : 1990년 6월부터 1992년 7월까지 동맥 색전술을 시행하고나서 최소 6개월이상의 경과 관찰이 가능한 23명의 환자를 대상으로 하였다. 대퇴 동맥을 통한 경피적 삽관으로, 기관지동맥외에 비기관지 체측부동맥을 전부 혈관 조영하여 출혈 부위를 확인하고, 출혈부위 동맥에 gelfoam으로 색전하고, 출혈이 큰 경우에는 금속 제재인 coil을 함께 색전시켰다. 결과 : 23예 전예에서 즉각적인 지혈 효과를 볼 수 있었고, 7예(30%) 에서 재발하였다. 비기관지동맥 출혈군과 기관지동맥 단독출혈군의 재발률은 46% (6/13)와, 10% (1/10)로서 서로 비교되었다. 재발의 원인 질환은 비활동성 폐결핵 4예, 활동성 폐결핵 1예, 기관지 확장증 1예, 국균종 1예였으며, 조치로서 1예는 경과 관찰, 2예는 재색전, 2예는 재색전후 수술, 2예는 대량 객혈로 사망하였으며, coil로 색전한 경우는 아직 재발이 없었다. 결론 : 폐순환 동맥색전술은 대량 객혈 환자에서 장기간의 지혈 효과는 확실치 않으나, 응급적 조치로서는 확실한 지혈 효과가 있으며, 응급적 지혈후에는 원인 질환에 대한 대책을 즉시 수렵해야한다.

• Journal of Korean Neurosurgical Society
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• 제46권2호
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• pp.116-122
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• 2009

Objective: Intracranial arteriovenous malformation (AVM) associated with aneurysm has been infrequently encountered and the treatment for this malady is challenging. We report here on our clinical experience with AVMs associated with arterial aneurysms that were managed by multimodality treatments, including clipping of the aneurysm, microsurgery, Gamma-knife radiosurgery (GKS) and Guglielmi detachable coil (GDC) embolization. Methods: We reviewed the treatment plans, radiological findings and clinical courses of 21 patients who were treated with GKS for AVM associated with aneurysm. Results: Twenty-seven aneurysms in 21 patients with AVMs were enrolled in this study. Hemorrhage was the most frequent presenting symptom (17 patients: 80.9%). Bleeding was caused by an AVM nidus in 11 cases, aneurysm rupture in 5 and an undetermined origin in 1. Five patients were treated for associated aneurysm with clipping followed by GKS for the AVM and 11 patients were treated with GDC embolization combined with GKS for an AVM. Although 11 associated aneurysms remained untreated after GKS, none of them ruptured and 4 aneurysms regressed during the follow up period. Two aneurysms increased in size despite the disappearance of the AVM nidus after GKS and then these aneurysms were treated with GDC embolization. Conclusion: If combined treatment using microsurgery, GKS and endovascular treatment can be adequately used for these patients, a better prognosis can be obtained. In particular, GKS and GDC embolization are considered to have significant roles to minimize neurologic injury.

• Journal of Trauma and Injury
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• 제24권2호
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• pp.159-163
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• 2011

Massive bleeding due to traumatic pelvic bone fracture is a leading cause of death. Thus, several methods to control bleeding have been attempted, but none of these has yet been clearly established. After an automobile accident, a 34-year-old motorist was admitted to the Emergency Department for right hip,leg and abdominal pain. Because the patient's pressure remained consistently low and pelvic bone fracture and abdominal bleeding were found on radiologic examination, an explorative laparotomy was performed. After pelvic packing and bleeding control, bleeding still continued, so Angiography was performed, and arterial embolization for bleeding was performed.

• Tuberculosis and Respiratory Diseases
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• 제76권6호
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• pp.295-298
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• 2014

Pulmonary systemic arterialization to normal basal lung without sequestration is a rare congenital anomaly. In this rare abnormality, arterialization of the left lower lobe is the most common type. In general, surgical treatments have been performed. Recently, for reducing the complications and risks of surgery, embolization is mainly attempted by using coils. We report a case of 22-year-old male patient with a 10 mm anomalous arterial supply to his normal lung, which is being successfully treated by transcatheter embolization when using the Amplatzer Vascular Plug that has been adapted for the treatment of high-flows and large artery occlusions.

• Journal of Trauma and Injury
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• 제25권4호
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• pp.296-299
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• 2012

The aorta is the most common major thoracic artery injured by blunt chest trauma. Injuries to major aortic arch branch arteries can also occur but are much less common than aortic injuries in the setting of blunt trauma. Although internal mammary artery (IMA) injury is uncommon and rarely diagnosed in cases of blunt chest trauma, it is one of the important sources of bleeding in chest trauma. IMA bleeding can cause ongoing blood loss and may lead to serious conditions such as extensive hemothorax, anterior mediastinal hematoma or its catastrophic complication, cardiac tamponade. However such arotic and branch artery injuries are not easily detected by plain radiograph, and are detected indirectly because of associated mediastinal hematoma. Herein, we report a case of IMA injury caused by blunt chest trauma secondary to pedestrian traffic accident. The injured patient was successfully treated by transcatheter arterial embolization (TAE).