Percutaneous Transcatheter Coil Embolization Research Articles

Multivessel endovascular therapy for undiagnosed vascular type Ehlers-Danlos syndrome. Successful percutaneous transcatheter coil embolization of hepatic artery pseudoaneurysm with stenting of right renal and iliac arteries in emergency setting

Among Ehlers-Danlos syndromes, the vascular type is the most severe because of its vascular complications. Transcatheter embolization of medium-sized arteries has become the first-line therapy for life-threatening hemorrhage. Ongoing multiple lesions causing hemorrhagic or ischemic complications in the acute phase can challenge patient management. Multivessel endovascular treatment has never been reported. In this study, we report successful single-session treatment by coiling of a ruptured pseudoaneurysm of the hepatic artery with stenting of dissected right renal and iliac arteries in a 46-year-old female. Percutaneous transfemoral approach was gained and sealed with a plug-based closure device. Genetic disease was subsequently confirmed by molecular analysis.

TCTAP C-206 Percutaneous Trans-Catheter Coil Embolization for Large Pseudoaneurysm After the Peroneal Artery Puncture for Retrograde Approach to Below-the-Knee Occlusion

### Patient initials or identifier number S.O. ### Relevant clinical history and physical exam A 73-year-old type 2 diabetic male, was on dialysis admitted to our institution because of non-healed multiple ulcer of the right 1st, 2nd, 3rd and 4th toe and un-controlled rest pain. Ankle brachial

Endovascular Repair of a Profunda Femoris Artery Aneurysm

Profunda femoris artery (PFA) aneurysms are rare and they are usually treated with open surgery. We report the case of an 87-year-old patient who during the preoperative work-up for an abdominal aortic aneurysm was found to have a 4.2-cm aneurysm of the right PFA. A percutaneous transcatheter coil embolization was successfully performed using a contralateral retrograde approach. To date, only three patients, including the present case, have been treated with transcatheter coil embolization for a PFA aneurysm. In the absence of concomitant superficial femoral artery disease, embolization of aneurysms of the profunda femoris seems to be a safe and minimally invasive alternative to open repair in selected patients.

A delayed case of renal artery pseudoaneurysm presented with gross hematuria and azotemia in solitary kidney following percutaneous nephrostomy: treated by transcatheter coil embolization

Renal arteriovenous fistula or pseudoaneurysms developing after invasive procedures are either asymptomatic or show only transient symptoms. We describe here a case of symptomatic renal artery pseudoaneurysm that presented with gross hematuria and azotemia. The pseudoaneurysm of renal artery was diagnosed by ultrasonography and abdominal magnetic resonance imaging (MRI), and it was successfully treated by percutaneous transcatheter coil embolization. A high index of suspicion is essential for the early diagnosis and treatment of delayed gross hematuria in patients with history of percutaneous nephrostomy.

Percutaneous transcatheter coil embolization of a ventricular septal defect in a dog

A 4-month-old male French Bulldog weighing 5.0 kg (11 lb) was referred for a heart murmur. A grade 3/6 systolic murmur was detected at the left heart base and a grade 4/6 systolic murmur was detected at the right heart base. By use of color-flow Doppler ultrasonography and cardiac catheterization, a diagnosis of supracristal ventricular septal defect (VSD) with accompanying aortic regurgitation was made. Percutaneous transcatheter coil embolization was used to close the VSD. Because residual shunt was detected via echocardiography after coil implantation, the residual shunt was followed periodically via echocardiography to detect spontaneous closure of the VSD. Volume overload in the left ventricle was detected in the dog 131 days after admission. Additional coils were placed 137 days after admission. Hemolysis resulting in hemoglobinuria was detected, but this complication was mild. In the dog of this report, results of coil occlusion for correction of VSD were promising. Thus, coil occlusion should be considered as an alternative treatment for VSD in dogs.

Pulmonary arteriovenous malformations: effect of embolization on right-to-left shunt, hypoxemia, and exercise tolerance in 66 patients.

This study assessed the effect and safety of percutaneous transcatheter coil embolization of pulmonary arteriovenous malformations. In 58 (88%) of 66 patients, all malformations with feeding vessels greater than or equal to 3 mm in diameter were embolized with steel coils. Arterial oxygen saturation at rest and exercise, intrapulmonary right-to-left anatomic shunt fraction ((99m)Tc-macroaggregate injection), maximum exercise capacity (incremental work rate test), and pulmonary function were measured before and after embolization. Complications were analyzed. Three categories of patients were identified. Patients in group 1 (27%) had complete occlusion of all angiographically visible pulmonary arteriovenous malformations; patients in group 2 (61%) had complete occlusion of all malformations with feeding vessels greater than or equal to 3 mm in diameter, but with smaller lesions persisting; and patients in group 3 (12%) had incomplete embolization, with feeding vessels greater than or equal to 3 mm in diameter remaining. The mean right-to-left shunt after embolization was least in group 1 (7%), intermediate in group 2 (10%), and greatest in group 3 (19%). Arterial oxygen saturation and right-to-left shunt fraction returned to normal levels (>96% and <3.5%, respectively) in 33% of patients. A significant improvement occurred after embolization in carbon monoxide diffusing capacity per unit of alveolar volume and in exercise capacity in 16 and 10 patients, respectively. In 93 procedures, 12 complications (13%) occurred. Coil embolization of pulmonary arteriovenous malformations is effective in reducing right-to-left anatomic shunt fraction and in improving arterial oxygenation. Coil embolization of pulmonary arteriovenous malformations is well tolerated and has a low complication rate.

A Case of Percutaneous Transcatheter Coil Embolization for Congenital Coronary Arteriovenous Fistula

We report a case of 70-year-old woman who had bilateral coronary arteriovenous fistula(CAVF and treated with percutaneous transcatheter coil embolization. Enlarged LV and reduced global LV systolic function were demonstrated on transthoracic echocardiography. Coronary angiography revealed a large coronary arteriovenous fistula from the right coronary artery to the main pulmonary artery and a small fistula from the left coronary artery to the main pulmonary artery. Percutaneous transcatheter coil embolization for CAVF from the right coronary artery to the main pulmonary artery was successfully performed with symptomatic improvement.