title: Undulating microcatheter tip motion with respiratory cycle during intracranial aneurysm embolization: description of a case and strategy for its mitigation.
abstract: The present report describes a technique for mitigating respiration-related microcatheter motion during endovascular aneurysm treatment by modulating ventilator settings. A rare phenomenon of microcatheter tip movement related to respiration is demonstrated. An adjustment of tidal volume and respiratory rate reduced the degree of inspiratory vessel elongation and stabilized the microcatheter position, allowing for safer, more precise coil deployment. This maneuver can easily be applied to other endovascular procedures for which aberrant microcatheter motion must be minimized.
authors: Division of Interventional Neuroradiology, Russell H Morgan Department of Radiology, Johns Hopkins Hospital, Baltimore, Maryland 21287, USA.
authors: James X
authors: JX
authors: Chen
authors: Allan
authors: A
authors: Gottschalk
authors: Sudhir
authors: S
authors: Kathuria
authors: Dheeraj
authors: D
authors: Gandhi
mesh_terms: D057785:Catheters; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic / Q000009:adverse effects / Q000379:methods*; D057510:Endovascular Procedures; D006801:Humans; D002532:Intracranial Aneurysm / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D009038:Motion; D015656:Respiratory Mechanics / Q000502:physiology*; D015607:Stents