Embolization, Therapeutic

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

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*

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

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

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*

No abstract available.
Spleen ; Embolization, Therapeutic ; Liver Cirrhosis

No abstract available.
Arteriovenous Malformations ; Embolization, Therapeutic ; Telangiectasia, Hereditary Hemorrhagic

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*

No abstract available.
Arteriovenous Fistula* ; Child* ; Embolization, Therapeutic* ; Humans