• Journal of Korean Neurosurgical Society
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• 제46권6호
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• pp.572-576
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• 2009

Detachable balloon-based endovascular fistula occlusion is a widely accepted treatment for traumatic carotid cavernous fistulas (CCF). However, more recently coils have been used to obliterate the lesion, especially in case detachable balloon is not available. We failed balloon-assisted coil embolization for CCF because of large fistulas and herniation of coil loops into the parent artery. The authors describe our experiences of balloon-expandable graft-stents to treat CCF, and place emphasis on arterial wall reconstruction. Three traumatic CCF patients were treated using a graft-stent with/without coils, and underwent angiographic follow-up to evaluate the patency of the internal carotid artery (ICA). In all cases, symptoms related to CCF regressed after stent deployment and did not recur during follow-up. Follow-up angiography revealed good patency of the ICA in all patients. Graft-stents should be considered as an alternative means of treating CCF and preserving the parent artery by arterial wall reconstruction especially in patients with a fistula that cannot be successfully occluded with detachable balloons or coils.

• Clinical Endoscopy
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• 제56권6호
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• pp.812-816
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• 2023

We report a rare case of gastric cancer presenting with a gastrocolic fistula during ramucirumab and paclitaxel combination therapy that was successfully managed with colonic stenting. A 75-year-old man was admitted to our hospital with the chief complaint of melena. Esophagogastroduodenoscopy revealed a large ulcerated tumor in the lower stomach, judged by laparoscopy as unresectable (sT4bN1M0). After four cycles of first-line chemotherapy with S-1 plus oxaliplatin, the patient showed disease progression, and second-line therapy with ramucirumab and paclitaxel was started. At the end of the third cycle, the patient had gastric antral stenosis, which necessitated the placement of a gastroduodenal stent. When the patient complained of diarrhea 10 days later, esophagogastroduodenoscopy revealed a fistula between the greater curvature of the stomach and the transverse colon. The fistula was covered by double colonic stenting, with a covered metal stent placed within an uncovered metal stent, after which leakage from the stomach to the colon stopped.

• 순환기질환의공학회:학술대회논문집
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• 순환기질환의공학회 2002년도 제2회 학술대회 초록집
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• pp.35-35
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• 2002

• Journal of Korean Neurosurgical Society
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• 제44권3호
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• pp.159-162
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• 2008

Stenting is a useful alternative treatment modality in carotid artery stenosis patients who are too high-risk to undergo carotid endarterectomy (CEA). We report a case of contralateral cerebral infarction after stenting for extracranial carotid stenosis. A 78-year-old woman was admitted to the hospital with left-sided weakness. Based on magnetic resonance imaging (MRI) of the brain and conventional angiography, she was diagnosed with an acute watershed infarct of the right hemisphere secondary to severe carotid stenosis. Stenting was performed for treatment of the right carotid artery stenosis after a one-week cerebral angiogram was completed. Thirty minutes after stent placement, the patient exhibited a generalized seizure. Four hours later, brain MRI revealed left hemispheric cerebral infarction. Complex aorta-like arch elongation, tortuosity, calcification, and acute angulation at the origin of the supra-aortic arteries may increase the risk of procedural complications. In our case, we suggest that difficult carotid artery catheterization, with aggressive maneuvering during stenting, likely injured the tortuous, atherosclerotic aortic arch, and led to infarction of the contralateral cerebral hemisphere by thromboemboli formed on the wall of the atherosclerotic aorta.

• Clinical Endoscopy
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• 제56권6호
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• pp.716-725
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• 2023

Endoscopic retrograde cholangiopancreatography (ERCP) in patients with surgically altered anatomy is technically challenging. For example, scope insertion, selective cannulation, and intended procedures, such as stone extraction or stent placement, can be difficult. Single-balloon enteroscopy (SBE)-assisted ERCP has been used to effectively and safely address these technical issues in clinical practice. However, the small working channel limits its therapeutic potential. To address this shortcoming, a short-type SBE (short SBE) with a working length of 152 cm and a channel of 3.2 mm diameter has recently been introduced. Short SBE facilitates the use of larger accessories to complete certain procedures, such as stone extraction or self-expandable metallic stent placement. Despite the development in the SBE endoscope, various steps have to be overcome to successfully perform such procedure. To improve success, the challenging factors of each procedure must be identified. At the same time, endoscopists need to be mindful of adverse events, such as perforation, which can arise due to adhesions specific to the surgically altered anatomy. This review discussed technical tips regarding SBE-assisted ERCP in patients with surgically altered anatomy to increase success and reduce the risk of adverse events associated with ERCP.

• 대한영상의학회지
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• 제84권4호
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• pp.846-854
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• 2023

상하지 혈관 손상은 높은 사망률과 관계가 있다. 사지 혈관 손상에 대한 전통적인 치료법은 수술이었으나 최근 기술과 시술법의 비약적인 발달로 인해 혈관 내 치료법(endovascular treatment)의 효용 및 임상 적용이 증가하고 있다. 상하지 혈관 손상에서 시행할 수 있는 혈관 내 치료는 크게 스텐트 그래프트(stent graft) 설치술과 색전술로 나눠볼 수 있으며 일반적으로 손상 혈관의 위치와 크기, 혈관 손상의 성격에 따라 치료법이 달라진다. 겨드랑-쇄골하동맥과 장골 동맥 손상의 경우 해부학적 위치상 수술적인 접근이 어려운 것으로 알려져 있으며 스텐트 그래프트 설치술이 수술을 대신할 수 있는 중요한 치료법으로 활용되고 있다. 활동성 출혈, 가성동맥류, 동정맥루 및 색전 시 허혈이 우려되지 않는 동맥의 손상에 대해서는 색전술을 고려해 볼 수 있다. 상하지의 혈관 손상에 대한 혈관 내 치료법은 최소침습적으로 진단과 치료를 동시에 할 수 있다는 장점이 있어 향후 그 적응증이 더 넓어질 것으로 기대된다.

• Journal of Chest Surgery
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• 제43권6호
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• pp.729-733
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• 2010

스텐트 그라프트를 이용한 대동맥류에 대한 혈관내 치료는 급격히 발전하고 있다. 저자들은 대동맥궁 탈분지술 후 스텐트 그라프트를 설치한 hybrid TEVAR (thoracic endovascular aortic repair) 1예에 대해 보고하고자 한다. 환자는 2년 반 전 Type I 급성 대동맥 박리로 상행 대동맥 치환술을 시행하였다. 수술 후 박리 원위부의 동맥류성 변화가 점차 진행하여 이에 대한 치료로 먼저 상행 대동맥으로 부터 무명동맥과 좌경동맥으로 향하는 우회로를 만든 다음 전향적으로 대동맥궁 전체 및 근위부 하행 흉부 대동맥에 걸쳐 스텐트 그라프트를 설치하였다.

• Journal of Veterinary Science
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• 제23권3호
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• pp.46.1-46.8
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• 2022

Background: Stenting is an effective treatment option for tracheal collapse in dogs. Cross-braided tracheal stents are currently the norm in veterinary medicine, but cross-and-hook braided stents have recently been adopted in human medicine. We examined whether stents manufactured using this novel braiding technique provided additional advantages for the treatment of tracheal collapse in dogs. Objectives: To evaluate the outcomes of cross-and-hook braided stent implantation in the treatment of tracheal collapse in dogs. Methods: The medical records of 22 client-owned dogs that underwent luminal placement of cross-and-hook braided Fauna Stents for the treatment of tracheal collapse between January 2018 and July 2021 were examined and data on canine signalment, clinical signs, diagnostic test results, surgical outcomes, and postoperative complications were retrieved and analyzed statistically. Results: Twenty-six stents were surgically implanted, with 20 dogs (90.9%) receiving one stent and the remaining two (9.1%) receiving two or more stents. All dogs survived the procedure. The median survival time at a median follow-up of 990 days was 879 days. At the final follow-up examination, loss or mild improvement of cough was observed in all dogs. Conclusions: Compared with conventional lumen stents, the cross-and-hook braided Fauna Stent offered a higher survival rate and improved clinical symptoms in all patients. The results of this study suggest that the Fauna Stent may be a promising treatment option for dogs with tracheal collapse.

• Journal of Digestive Cancer Reports
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• 제9권2호
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• pp.43-49
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• 2021

Background/Aims: Colonic stenting as a bridge to elective surgery is an alternative for emergency surgery in patients with acute malignant colonic obstruction. However, since its benefits are uncertain, we aimed to establish whether it has better clinical outcomes. Methods: The patients with acute malignant left-sided colon obstruction enrolled from January 2009 to December 2018 in National Health Insurance Service Ilsan Hospital. The patients were enrolled to undergo colonic stenting as a bridge to elective surgery or emergency surgery. The following oncological outcomes were assessed: incidence of complete remission, disease progression, local recurrence, and systemic recurrence. Results: Out of 40 patients, 33 received self-expanding metallic stent (SEMS) as a bridge-to-surgery, and 7 underwent emergency surgery. More stoma was made in case of emergency surgery with statistical significance (p < 0.001). There were no significant differences in complete remission rate in curable left-sided malignant colonic obstruction between SEMS as a bridge-to-surgery and emergency surgery. Complete remission was achieved for 3 patients (42.9%) in the non-stent group and 27 patients (81.8%) in the stent group. There was no statistically significant difference in oncologic outcomes between the two groups (p = 0.069). According to multi-variate analysis, advanced TNM stage, Adjuvant chemotherapy, and SEMS bridge-to-surgery were significantly associated with disease-free survival. Disease-free survival rate differed significantly between the two groups (p = 0.024). Conclusions: SEMS as a bridge-to-surgery might be an effective strategy and reduce stoma formation in acute malignant left-sided colon obstruction.

• Journal of Trauma and Injury
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• 제28권2호
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• pp.83-86
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• 2015

Central venous cannulation is one of the most commonly performed procedures for critically ill patients in the emergency room. Serious complications like a rupture of subclavian artery may occur during this procedure. We report a case of successful stent graft deployment for iatrogenic ruptured subclavian artery after attempted right subclavian vein catheterization in a 31 year-old female patient with hypovolemic shock due to cervical os laceration during vaginal delivery.