Transcatheter arterial embolization of a splenic artery aneurysm with N-butyl cyanoacrylate/lipiodol/ethanol mixture with coil-assisted sandwich technique

International audienc

Transgraft sac Embolization Combined with Graft Reinforcement for Refractory Mixed-Type Endoleak

International audienceAn 80-year-old female underwent EVAR 4 years ago. She presented type II endoleak with sac expansion from 68 to 80 mm during 3-year follow-up after EVAR. Although she underwent translumbar percutaneous sac embolization, the AAA sac continued to enlarge, suggesting mixed-type endoleak including type I, II, and III. Transgraft direct sac angiography revealed endoleak cavity without demonstrable feeding vessel. Transgraft sac embolization using n-butyl cyanoacrylate and graft reinforcement was performed concurrently, without complications. The graft reinforcement consisted of graft extension for eliminating occult type I endoleak, and relining for eliminating occult type III endoleak. Six months after the procedure, CT showed no signs of sac expansion. Transgraft sac embolization combined with graft reinforcement is one of the available options for persistent and refractory mixed-type endoleak

Successful retrieval of a foreign body in an infant's right pulmonary artery using the new boomerang loop–snare technique: A case report

We report successful percutaneous retrieval of a foreign body located in an infant's right pulmonary artery using the new boomerang loop–snare technique. The case was an 18-month-old girl. A central venous catheter for chemotherapy was inserted from the right subclavian vein during treatment for myelodysplastic syndrome at another hospital. A postprocedural chest X-ray showed a foreign body in her right lung, and contrast-enhanced computed tomography confirmed the linear foreign body was located in the right pulmonary artery. The patient was transferred to our hospital to retrieve the foreign body. Under cooperation with pediatric cardiologists, a 6 Fr sheath was inserted via the right femoral vein, and a guiding catheter was advanced into the right pulmonary artery. Owing to the risk of vascular injury when using endoscopic forceps, we decided to use the loop–snare technique. We successfully crossed over the foreign body using a steerable microcatheter and a long microguidewire. The microguidewire was reinserted into the guiding catheter, and a loop was created by grasping the end of the wire using a microsnare catheter, which was inserted coaxially within the guiding catheter. By pulling the microsnare catheter, we were able to pull the foreign body into the guiding catheter and successfully retrieved it. There were no complications, such as pulmonary artery injuries or thrombi. The recovered foreign body was a piece of a guidewire. The boomerang loop–snare technique using a small-diameter system is useful for the retrieval of a foreign body in infants

Successful coil embolization of a ruptured aneurysm of the arc of Riolan artery

The arc of Riolan (AOR) is an anastomosis between the middle and left colic arteries. Aneurysms of the AOR are very rare visceral artery aneurysms. A 44-year-old man presented with abdominal pain and loss of consciousness. Computed tomography and angiography showed hemorrhagic ascites around the liver and spleen. An irregularly dilated artery was visible within a hematoma in the upper left region of the abdomen, consistent with a ruptured pseudoaneurysm of the AOR. Transcatheter arterial embolization was performed with microcoils. The patient's abdominal pain disappeared after embolization, and no symptoms of intestinal ischemia were observed. To our knowledge, this is the first case of an AOR aneurysm with AOR dilation due to dissection of the celiac artery that was successfully treated by coil embolization