Document Detail


Flow-Independent Dynamics in Aneurysms: Intra-aneurysm Pressure Measurements Following Complete Flow Cessation in Internal Carotid Artery Aneurysms.
MedLine Citation:
PMID:  25453892     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Purpose : To determine if complete flow obliteration by covered stents reduces intra-aneurysm pressures in internal carotid artery (ICA) aneurysms. Methods : A single lumen microcatheter was placed into the aneurysm sac prior to covered stent deployment in 3 patients and connected to a pressure monitoring system. The intra-aneurysm pressure was continuously monitored, and readings were recorded prior to and immediately after stent deployment and at 5-minute intervals up to 20 minutes after stent placement. Complete occlusion of flow into the aneurysms was confirmed by carotid angiography. Results : There was no change in mean pressure within the aneurysm before and immediately after stent placement (80 mmHg) in any patient, nor was there a change in waveform of the intra-aneurysm pressure recording. The average of intra-aneurysm pressures among the 3 patients was higher (99 mmHg) at 10 and 15 minutes after stent placement. In 2 patients, the microcatheter was retracted into the parent arterial lumen; no difference in pressure was noted. Conclusion : Our observations suggest no change in the pressures within the aneurysm after complete flow cessation (flow-independent). These findings may assist clinicians in better understanding aneurysm hemodynamics and rupture after covered stent deployment.
Authors:
Adnan I Qureshi; Mushtaq H Qureshi; Tanya Mohindroo; Asif A Khan; Kayla Dingmann; Gregory T Sherr; M Fareed K Suri
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists     Volume:  21     ISSN:  1545-1550     ISO Abbreviation:  J. Endovasc. Ther.     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100896915     Medline TA:  J Endovasc Ther     Country:  United States    
Other Details:
Languages:  eng     Pagination:  861-6     Citation Subset:  IM    
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