Background: Flow diverters have revolutionized the treatment of large aneurysms. However, prolapse of the device into the aneurysm is a known complication that may have fatal consequences. Case: We present a case of a 21-year-old male with a giant aneurysm located in the cavernous segment of the right internal carotid artery. After Pipeline Embolization Device (PED) deployment, while retrieving the PED wire, the proximal end of the stent shortened, resulting in prolapse of the device into the aneurysm. We utilized the Pull on Pipe (POP) maneuver, characterized by the deployment of a second PED inside the lumen of the prolapsed device and gentle traction to restore the initial flow diverter into its proper position. The maneuver also allows for the immediate deployment of the second PED to improve proximal purchase and overall construct stability. Conclusion: The POP maneuver is a novel strategy for salvaging herniated flow diverters and establishing a more stable PED construct.
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Published online: January 30, 2020
Accepted: January 1, 2020
Received in revised form: December 15, 2019
Received: November 13, 2019
Funding: This study did not receive any financial support.
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