Transcatheter Coil Embolization of Splenic Artery Aneurysm

• Published in: Cardiovascular and interventional radiology Vol. 31; no. 3; pp. 527 - 534
• Main Authors: Yamamoto, Satoshi, Hirota, Shozo, Maeda, Hiroaki, Achiwa, Sachiko, Arai, Keisuke, Kobayashi, Kaoru, Nakao, Norio
• Format: Journal Article
• Language: English
• Published: New York Springer-Verlag 01.05.2008; Springer Nature B.V
• Subjects: Adult; Aged; Aged, 80 and over; Aneurysm - diagnostic imaging; Aneurysm - therapy; Aneurysm, False - diagnostic imaging; Aneurysm, False - therapy; Angiography - methods; ARTERIES; BLOOD PRESSURE; BRANCHING RATIO; Cardiology; Catheterization - methods; Clinical Investigation; EMBOLI; Embolization, Therapeutic - adverse effects; Embolization, Therapeutic - instrumentation; Embolization, Therapeutic - methods; Evaluation Studies as Topic; Female; Follow-Up Studies; HOSPITALS; Humans; Imaging; Male; Medicine; Medicine & Public Health; Middle Aged; Nuclear Medicine; PATIENTS; Radiology; RADIOLOGY AND NUCLEAR MEDICINE; Recurrence; Retrospective Studies; Risk Assessment; RUPTURES; Splenic Artery; Splenic Infarction - etiology; Splenic Infarction - therapy; Tomography, X-Ray Computed; Treatment Outcome; Ultrasound; VASCULAR DISEASES; Vascular Patency - physiology; Splenic artery aneurysm; Coil embolization
• ISSN: 0174-1551; 1432-086X; 1432-086X
• DOI: 10.1007/s00270-007-9237-9

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.