2.Progressive Visual Loss after Endovascular Coiling Treatment of a Large Paraclinoid Aneurysm.
Soon Don PARK ; Tong Keun LEE ; Yu Sam WON ; Young Joon KWON ; Jae Young YANG ; Chun Sik CHOI
Korean Journal of Cerebrovascular Surgery 2005;7(2):154-157
Recently, favorable outcomes have been reported after the endovascular treatment of either ruptured or unruptured paraclinoid aneurysms. The complications specifically related to the endovascular treatment of paraclinoid aneurysms have also been reported in other studies. Visual symptoms related to the mass effects associated with giant paraclinoid aneurysm normally improve after coil embolization. However, these symptoms have also been reported to be exacerbated in some cases. The authors here report an unusual case of progressive visual loss occurring after endovascular coiling treatment in a case of a large paraclinoid aneurysm.
Aneurysm*
;
Embolization, Therapeutic
3.Research on injection flow velocity planning method for embolic agent injection system.
Jiasheng LI ; Dongcheng REN ; Bo ZHOU ; Shijie GUO ; Baolei GUO
Journal of Biomedical Engineering 2022;39(3):579-585
Interventional embolization therapy is widely used for procedures such as targeted tumour therapy, anti-organ hyperactivity and haemostasis. During embolic agent injection, doctors need to work under X-ray irradiation environment. Moreover, embolic agent injection is largely dependent on doctors' experience and feelings, and over-injection of embolic agent can lead to reflux, causing ectopic embolism and serious complications. As an effective way to reduce radiation exposure and improve the success rate of interventional embolization therapy, embolic agent injection robot is highly anticipated, but how to decide the injection flow velocity of embolic agent is a problem that remains to be solved. On the basis of fluid dynamics simulation and experiment, we established an arterial pressure-injection flow velocity boundary curve model that can avoid reflux, which provides a design basis for the control of embolic agent injection system. An in vitro experimental platform for injection system was built and validation experiments were conducted. The results showed that the embolic agent injection flow speed curve designed under the guidance of the critical flow speed curve model of reflux could effectively avoid the embolic agent reflux and shorten the embolic agent injection time. Exceeding the flow speed limit of the model would lead to the risk of embolization of normal blood vessels. This paper confirms the validity of designing the embolic agent injection flow speed based on the critical flow speed curve model of reflux, which can achieve rapid injection of embolic agent while avoiding reflux, and provide a basis for the design of the embolic agent injection robot.
Embolization, Therapeutic/methods*
4.Primary vaginal gestational trophoblastic neoplasia treated with uterine angiographic embolization and chemotherapy
Maria Concepcion D. Cenizal-Santos ; Angelica Anne A. Chua ; Leon Francis N. Aquilizan
Philippine Journal of Obstetrics and Gynecology 2022;46(3):131-135
Gestational trophoblastic neoplasia (GTN) in itself is an uncommon condition, much so is a primary extrauterine GTN. The incidence of GTN in the Philippines is at 22.4/40,000 pregnancies. However, no report has been made for primary extrauterine GTN. Only two cases of primary vaginal choriocarcinoma are reported in the literature. This is a case of a 26‑year‑old gravida 1 para 0 (0010) who came in for profuse vaginal bleeding. Serum beta‑human chorionic gonadotropin (β‑hCG) was elevated and ultrasound showed a hypervascular vaginal mass and an empty uterus. A primary vaginal GTN was considered, and the patient was treated with etoposide, methotrexate, actinomycin D, cyclophosphamide, and vincristine (EMACO) regimen. During the course of chemotherapy, there was a note of profuse vaginal bleeding, which was controlled by angiographic uterine artery embolization. A normal β‑hCG level was achieved after six cycles of EMACO. The patient was able to have three successful pregnancy outcomes thereafter. Primary vaginal GTN is a rare condition that requires a high index of suspicion. In a nulliparous patient complicated with profuse vaginal bleeding, angiographic embolization is an effective fertility‑sparing procedure that can manage the said complication.
Trophoblastic Neoplasms
;
Embolization, Therapeutic
5.Artery embolization for treatment of fibroid uterine myoma - a nonsurgical proper choice
Journal of Medical and Pharmaceutical Information 2004;0(8):14-17
Fibroid uterine is a common disease, accounts for 30-40% women between 30 and 50 years old. It is benign, gradual progress, and diversified clinical development. Artery embolization - a less-invasive method was widely used in the world within 8 years ago (but only 3 years in Vietnam).. This method has many advantages: gentle, safe, and effective technique, keeping body intact, higher quality of life for patients. Wide application of this method is reasonable and essential
Embolization, Therapeutic
;
Therapeutics
;
Myoma
;
Leiomyoma
6.Endovascular Treatment of Cerebral Aneurysms: Coiling Techniques.
Moon Hee HAN ; Bae Ju KWON ; Chulkyu JUNG ; Seung Hoon SHEEN ; Jae Hoon CHO
Neurointervention 2007;2(1):1-11
For an effective and durable occlusion of cerebral aneurysm, the aneurysmal sac should be packed by detachable coils as densely as technically possible. Navigating microcatheters, coil framing, and packing of the sac are the major technical steps of aneurismal embolization. There are several additional techniques and devices for dealing with wide-necked aneurysms. This paper reviews and describes various techniques for safe navigation of microcatheters including tip shaping, selection of the shapes for initial coil framing, selection of coil sizes techniques for packing, and techniques of balloon- or stent-assisted coiling for embolization of wide-necked lesions.
Aneurysm
;
Embolization, Therapeutic
;
Intracranial Aneurysm*
7.Is Partial Splenic Embolization a Good Option to Prevent Cirrhotic Complications in the Long Term?
Journal of Korean Medical Science 2019;34(30):e209-
No abstract available.
Spleen
;
Embolization, Therapeutic
;
Liver Cirrhosis
8.Endovascular Treatment of Wide-necked Aneurysms with a Stent and Detachable Coils.
Pyeong Ho YOON ; Jung Yong AHN ; Sang Heum KIM ; Eun Wan CHOI
Korean Journal of Cerebrovascular Surgery 2004;6(1):31-37
Wide-necked aneurysms, whether they are small or large, have remained a significant challenge for endovascular treatment. Several methods, such as balloon remodeling technique or use of three-dimensional coil, are introduced for this, however, they do not produce satisfactory results. We describe the efficacy and limitations in treating the wide-necked aneurysms with stent-assisted coil embolization technique.
Aneurysm*
;
Embolization, Therapeutic
;
Intracranial Aneurysm
;
Stents*
9.Endobronchial Closure of Postoperative Bronchopleural Fistula Using Vascular Occluding Coils.
Kook Joo NA ; Byung Pyo KIM ; Seong Beom HONG ; Yong Sun CHOI ; Sang Hyung KIM ; Byung Hee AHN
The Korean Journal of Thoracic and Cardiovascular Surgery 2005;38(1):72-75
A bronchopleural fistula after pulmonary resection is still showing high mortality and morbidity despite of advancing of treatment. Several treatment options have been developed including surgical treatment. In 1990, endobronchial closure using vascular occluding coils was introduced. These coils can occlude a bronchial air-leakage by mechanical obstruction as well as inducing fibrosis. We report, herein, the experience using a vascular occluding coils in treating postoperative bronchopleural fistula.
Embolization, Therapeutic
;
Empyema
;
Fibrosis
;
Fistula*
;
Mortality
10.Retrieval of Distally Migrated Coils with Detachable Intracranial Stent during Coil Embolization of Cerebral Aneurysm.
Devendra Pal SINGH ; Soon Chan KWON ; Lijin HUANG ; Won Joo LEE
Journal of Cerebrovascular and Endovascular Neurosurgery 2016;18(1):48-54
Migration of coils during endovascular procedures is a rare, but well-known complication. We are reporting two cases of successfully retrieving migrated coil using detachable intracranial stent. In both of our cases there was distal migration of coil during the intracranial aneurysm coiling procedure. The Solitaire® AB stent (Covidien, Irvine, CA, USA) was used to retrieve those coils. The stent was passed distal to the migrated coil using standard technique. It was then partially deployed and gradually withdrawn along with the entangled coil. Coil retrieval using the fully retrievable intracranial stent is a very simple, safe and easily available alternative for retrieval of distally migrated coil.
Embolization, Therapeutic*
;
Endovascular Procedures
;
Intracranial Aneurysm*
;
Stents*