Embolization Of Splenic Artery Aneurysm Research Articles

Embolization of splenic artery aneurysm associated with gastrointestinal bleeding: case report

The splenic artery is the visceral vessel that is most often affected by aneurysmal disease. Occasionally, gastrointestinal bleeding may signify that the aneurysm is in communication with the digestive tract. We report on the case of a 64-year-old multiparous patient with intermittent digestive bleeding caused by a splenic artery aneurysm who was successfully treated with endovascular embolization.

Single-Center Experience with Elective Transcatheter Coil Embolization of Splenic Artery Aneurysms: Technique and Midterm Follow-up

PurposeTo review a single-center experience with elective coil embolization of splenic artery aneurysm (SAA) and analyze efficacy of the technique at midterm follow-up. Materials and MethodsFrom 2002 through 2011, 50 patients (28 women, 22 men; age range, 24–89 y; mean age, 53.5 y ± 13.6) underwent transcatheter coil embolization for treatment of SAAs. Pseudoaneurysms and ruptured aneurysms were excluded. A total of 63 SAAs were treated (size, 13–97 mm; mean, 29 mm). Ninety-eight percent of aneurysms were treated with coils alone. Regular follow-up consisted of an office visit and imaging. Patient medical records were reviewed for aneurysm location, procedural approach, and technical and clinical outcomes. ResultsNinety-eight percent of procedures were technically successful at thrombosing the aneurysm at the time of procedure. Repeat intervention was performed in four of 47 patients (9%) because of continued aneurysm perfusion at follow-up. Mean time to repeat intervention was 125 days (range, 42–245 d). All repeat interventions were technically successful. Neither aneurysm growth nor aneurysm rupture was observed in any patient during the follow-up period (mean, 78 weeks; range, 9 d to 7.1 y). There were no major adverse events. Major splenic infarction occurred in three of 33 patients (9%) with no underlying liver disease and normal splenic volume and in seven of 14 patients (50%) with portal hypertension. ConclusionsPercutaneous transcatheter coil embolization is a safe, effective, and minimally invasive treatment for SAAs as evidenced by high rates of technical success and freedom from aneurysm rupture.

Contrast-Enhanced Ultrasonography for the Evaluation of Coil Embolization of Splenic Artery Aneurysm

Ultrasound Quarterly: March 2011 - Volume 27 - Issue 1 - p 65-66 doi: 10.1097/01.RUQ.0000395279.27348.71

Contrast Enhanced Ultrasonography for the Evaluation of Coil Embolization of Splenic Artery Aneurysm

A 65-year-old woman with compensated liver cirrhosis secondary to hepatitis C virus infection was under surveillance for early detection of hepatocellular carcinoma with ultrasonography and, due to suboptimal ultrasound feasability, at longer intervals with computed tomography (CT). During follow-up, a splenic artery aneurysm appeared and progressively increased from 18 mm to ≈30 mm in diameter over a 9-month interval. The patient had severe splenomegaly secondary to portal hypertension and hypersplenism with a low platelet count (≈30.000/mL). Percutaneous arterial embolization was proposed to the patient1 because severe portal hypertension was considered a contraindication to surgical splenectomy. Embolization was carried out, preceded by platelet infusion, using “fibered” coils and interlocking detachable coils without complications. Eight weeks later, the patient underwent abdominal CT as part of the surveillance program for hepatocellular carcinoma; no nodule with pattern of hepatocellular carcinoma was identified; at the splenic level, frank metallic artifacts were evident and prevented assessment of treatment efficacy (Figure 1) as described in previous reports from the literature with this technique.2 Figure 1. CT scan of the upper abdomen at a level passing through the treated splenic aneurysm. Arrows, metallic artifacts (similar to rays departing from the coils) don’t allow adequate assessment of treatment efficacy. To investigate the splenic aneurysm status, an attempt was made with conventional ultrasound (Figure 2) and color duplex-doppler ultrasonography, which failed to provide definitive and unquestionable information about the success of the embolization. Doppler ultrasound …

Transcatheter Coil Embolization of Splenic Artery Aneurysm

The purpose of this study was to evaluate clinical results and technical problems of transcatheter coil embolization for splenic artery aneurysm. Subjects were 16 patients (8 men, 8 women; age range, 40-80 years) who underwent transcatheter embolization for splenic artery aneurysm (14 true aneurysms, 2 false aneurysms) at one of our hospitals during the period January 1997 through July 2005. Two aneurysms (12.5%) were diagnosed at the time of rupture. Multiple splenic aneurysms were found in seven patients. Aneurysms were classified by site as proximal (or strictly ostial) (n = 3), middle (n = 3), or hilar (n = 10). The indication for transcatheter arterial embolization was a false or true aneurysm 20 mm in diameter. Embolic materials were fibered coils and interlocking detachable coils. Embolization was performed by the isolation technique, the packing technique, or both. Technically, all aneurysms were devascularized without severe complications. Embolized aneurysms were 6-40 mm in diameter (mean, 25 mm). Overall, the primary technical success rate was 88% (14 of 16 patients). In the remaining 2 patients (12.5%), partial recanalization occurred, and re-embolization was performed. The secondary technical success rate was 100%. Seven (44%) of the 16 study patients suffered partial splenic infarction. Intrasplenic branching originating from the aneurysm was observed in five patients. We conclude that transcatheter coil embolization should be the initial treatment of choice for splenic artery aneurysm.

Coil Embolization of Splenic Artery Aneurysm with Preservation of the Parent Artery Using a Neck Remodeling Technique

We describe a case of a large and wide neck splenic artery aneurysm, treated by coil embolization using a balloon neck remodeling technique. The patency of the splenic artery was preserved without technical complications. This method should be considered as an alternative method for transcatheter management of splenic artery aneurysms.

Selective embolization of splenic artery aneurysm – case report

BACKGROUND: Embolization of visceral artery aneurysms has been increasingly accepted as a beneficial alternative to surgery. METHODS: The aim of this case report was to evaluate the feasibility of the endovascular therapy of a saccular aneurysm of the splenic artery at its first bifurcation. We approached the aneurysm with a supraselective catheter embolization using coils. RESULTS: After an interval of 4 weeks, we found a residual perfusion (0.3 by 0.6 mm) within the former neck in the control angiography. A repeat supraselective embolization was not favored because of catheter-induced vascular spasms of the splenic artery. A further 8 weeks later, control angiography revealed thrombosis of the previously diagnosed aneurysmatic sac, confirmed only minor residual flow through the thrombosed neck of the former aneurysm, and indicated sustained spleen blood supply as further revealed in later duplex ultrasonography follow-up. CONCLUSIONS: Selective coil embolization as first-line therapy to treat saccular splenic artery aneurysm is feasible.

透析患者に発生した脾動脈瘤に対する塞栓術による治療経験

透析患者に発生した脾動脈瘤に対する塞栓術による治療経験