BACKGROUND: Small, blister-like aneurysms (BLAs), by virtue of their unique morphology, are difficult to treat with conventional modalities. The use of oversized self-expanding stents as monotherapy for BLAs is a relatively new and promising concept that warrants further investigation.
OBJECTIVE: To clarify the role of oversized self-expanding stents as monotherapy for BLAs.
METHODS: Five consecutive patients were treated for BLAs with oversized self-expanding stents alone by the senior author (K.R.B.). We report on their clinical and radiographic outcomes.
RESULTS: All 5 patients in our series were discharged in good clinical condition. Complete aneurysm occlusion was observed in all patients at the time of most recent radiographic follow-up. Mean follow-up time was 13.6 months (range, 1 month to 4.5 years).
CONCLUSION: The use of oversized self-expanding stents to redirect flow away from aneurysms is an effective option for patients with BLAs. This approach represents an alternative to the use of flow diverters.
ABBREVIATIONS: BLA, blister-like aneurysm
CTA, computed tomography angiogram
ICA, internal carotid artery
SAH, subarachnoid hemorrhage
*Department of Neurosurgery, Yale School of Medicine, New Haven, Connecticut;
‡Division of Neurosurgery, University of California, San Diego, California;
§Department of Neurological Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania;
¶Department of Neurosurgery, College of Medicine, University of Iowa, Iowa City, Iowa
Correspondence: Ketan R. Bulsara, MD, Yale Department of Neurosurgery, 333 Cedar St, TMP 4, New Haven, CT 06520. E-mail: firstname.lastname@example.org
Received August 5, 2012
Accepted November 26, 2012