Document Detail

Intra-aneurysmal pressure changes during angiography in coil embolization.
MedLine Citation:
PMID:  9352808     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Although elevation of blood pressure in aneurysms induced by injection of contrast medium has been postulated as a major cause of rerupture of ruptured cerebral aneurysms during angiography, no study has proved the elevation of intra-aneurysmal pressure because of difficulty in measuring the intra-aneurysmal pressure during angiography. The present study demonstrated intra-aneurysmal pressure to be raised by injection of contrast medium, using a microcatheter introduced into aneurysms. METHODS: To confirm the accuracy of pressure measurement through a microcatheter, we measured intra-aneurysmal pressure in a plastic model of an artery and an aneurysm during and after injection of contrast medium through a microcatheter and a needle inserted into the aneurysm. In a clinical study, intra-aneurysmal pressures were measured through the microcatheter in nine cerebral aneurysms of seven patients. RESULTS: In the model experiment, changes in the pressure measured through the microcatheter correlated well with those observed through the needle. In the clinical study, intra-aneurysmal systolic pressures increased by 5-23 mm Hg immediately after injection of contrast medium for 1-3 s in four basilar tip, three internal carotid-ophthalmic, and one middle cerebral artery aneurysm, whereas no pressure change was observed in a posterior cerebral artery aneurysm. Systemic blood pressure during angiography remained unchanged in all cases. CONCLUSIONS: This abruptly elevated intra-aneurysmal pressure by injection of contrast medium might cause rerupture of an aneurysm soon after rupture of the aneurysm, especially when the rupture site is fragile.
T Sorimachi; S Takeuchi; T Koike; T Minakawa; R Tanaka
Related Documents :
9800608 - Surgical management of giant anterior aneurysm.
15340808 - Ruptured de novo intracranial aneurysms.
8421338 - Surgical treatment of aneurysm of the persistent sciatic artery.
20888158 - Case report of a rare spontaneous superficial temporal artery aneurysm.
25187618 - A revised methodology for aortic-valvar complex calcium quantification for transcathete...
23573278 - Nanoporous creg-eluting stent attenuates in-stent neointimal formation in porcine coron...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Surgical neurology     Volume:  48     ISSN:  0090-3019     ISO Abbreviation:  Surg Neurol     Publication Date:  1997 Nov 
Date Detail:
Created Date:  1997-11-20     Completed Date:  1997-11-20     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0367070     Medline TA:  Surg Neurol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  451-7     Citation Subset:  IM    
Department of Neurosurgery, Niigata University, Japan.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Aneurysm, Ruptured / etiology*,  physiopathology
Blood Pressure*
Cerebral Angiography / adverse effects*,  methods
Contrast Media / adverse effects
Embolization, Therapeutic* / methods
Intracranial Aneurysm / physiopathology*,  radiography*,  therapy
Middle Aged
Models, Cardiovascular
Reg. No./Substance:
0/Contrast Media

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Vascularized pedicled laminoplasty.
Next Document:  Operation on high-lying basilar bifurcation aneurysms.