Matches in SemOpenAlex for { <https://semopenalex.org/work/W2276117948> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W2276117948 abstract "Backgrounds and Purpose: Hyperperfusion syndrome following carotid artery stenting (CAS) may occur in patients suffering from stage 2 hemodynamic failure, where oxygen extraction fraction is elevated. The purpose of our retrospective study was to investigate whether or not blood sampling OEF has some relation to hyperperfusion phenomenon (HP) following CAS. Materials and Methods: Included for analysis were patients (1) who were admitted to our institution from 2010 to 2012, (2) who underwent elective CAS and (3) who underwent blood sampling for OEF calculation and single-photon emission computed tomography (SPECT) before and immediately after CAS. Oxygen extraction fraction (OEF) was calculated from arteriovenous oxygen difference as follows: OEF = (Ca02-Cv02) / Ca02 where Ca02 is arterial oxygen content and CvO2 is the jugular vein oxygen content. Cerebral blood flow (CBF) was measured in bilateral middle cerebral artery (MCA) territory and in the affected side cerebellar hemisphere by SPECT. Asymmetry index (AI) was defined as CBF in the affected side / CBF in the unaffected side, and MCA-to-cerebellar activity ratio as the CBF in the affected side / the CBF in the ipsilateral cerebellar hemisphere. HP was defined as 10% or more of increase in MCA-to-cerebellar activity ratio following CAS. Results: During the study period, 90 patients matched our criteria for retrospective analysis and 21 patients presented post-CAS HP. Procedures were successful in every case. There was no relation of pre-CAS OEF to asymmetry index and MCA-to-cerebellar activity ratio. There was no relation of post-CAS OEF to asymmetry index, but post-CAS OEF had relation to MCA-to-cerebellar activity ratio (r=0.26, p<0.05). Patients’ features were compared between HP and non_HP groups. Although there were no significant differences in pre-CAS OEF between two groups, patients in HP group had higher post-CAS OEF (0.46 vs 0.41, p<0.01). Cut-off value of post-CAS OEF was 0.45 or more, which yielded 57% of sensitivity and 81% of specificity for post-CAS HP (p<0.01). Conclusion: Elevation of blood sampling OEF immediately after CAS is related to post-CAS HP." @default.
- W2276117948 created "2016-06-24" @default.
- W2276117948 creator A5001695955 @default.
- W2276117948 creator A5026759155 @default.
- W2276117948 creator A5032151669 @default.
- W2276117948 creator A5035204650 @default.
- W2276117948 creator A5048479394 @default.
- W2276117948 creator A5063826998 @default.
- W2276117948 date "2013-02-01" @default.
- W2276117948 modified "2023-10-16" @default.
- W2276117948 title "Abstract WP128: Blood Sampling Oxygen Extraction Fraction As Predictors Of Hyperperfusion Phenomenon Following Carotid Artery Stenting" @default.
- W2276117948 doi "https://doi.org/10.1161/str.44.suppl_1.awp128" @default.
- W2276117948 hasPublicationYear "2013" @default.
- W2276117948 type Work @default.
- W2276117948 sameAs 2276117948 @default.
- W2276117948 citedByCount "1" @default.
- W2276117948 countsByYear W22761179482018 @default.
- W2276117948 crossrefType "journal-article" @default.
- W2276117948 hasAuthorship W2276117948A5001695955 @default.
- W2276117948 hasAuthorship W2276117948A5026759155 @default.
- W2276117948 hasAuthorship W2276117948A5032151669 @default.
- W2276117948 hasAuthorship W2276117948A5035204650 @default.
- W2276117948 hasAuthorship W2276117948A5048479394 @default.
- W2276117948 hasAuthorship W2276117948A5063826998 @default.
- W2276117948 hasConcept C126322002 @default.
- W2276117948 hasConcept C157767197 @default.
- W2276117948 hasConcept C164705383 @default.
- W2276117948 hasConcept C178853913 @default.
- W2276117948 hasConcept C2775841333 @default.
- W2276117948 hasConcept C2777953023 @default.
- W2276117948 hasConcept C2778333808 @default.
- W2276117948 hasConcept C2780441642 @default.
- W2276117948 hasConcept C2780685332 @default.
- W2276117948 hasConcept C2989005 @default.
- W2276117948 hasConcept C42219234 @default.
- W2276117948 hasConcept C541997718 @default.
- W2276117948 hasConcept C71924100 @default.
- W2276117948 hasConcept C80461066 @default.
- W2276117948 hasConcept C84393581 @default.
- W2276117948 hasConceptScore W2276117948C126322002 @default.
- W2276117948 hasConceptScore W2276117948C157767197 @default.
- W2276117948 hasConceptScore W2276117948C164705383 @default.
- W2276117948 hasConceptScore W2276117948C178853913 @default.
- W2276117948 hasConceptScore W2276117948C2775841333 @default.
- W2276117948 hasConceptScore W2276117948C2777953023 @default.
- W2276117948 hasConceptScore W2276117948C2778333808 @default.
- W2276117948 hasConceptScore W2276117948C2780441642 @default.
- W2276117948 hasConceptScore W2276117948C2780685332 @default.
- W2276117948 hasConceptScore W2276117948C2989005 @default.
- W2276117948 hasConceptScore W2276117948C42219234 @default.
- W2276117948 hasConceptScore W2276117948C541997718 @default.
- W2276117948 hasConceptScore W2276117948C71924100 @default.
- W2276117948 hasConceptScore W2276117948C80461066 @default.
- W2276117948 hasConceptScore W2276117948C84393581 @default.
- W2276117948 hasIssue "suppl_1" @default.
- W2276117948 hasLocation W22761179481 @default.
- W2276117948 hasOpenAccess W2276117948 @default.
- W2276117948 hasPrimaryLocation W22761179481 @default.
- W2276117948 hasRelatedWork W2006468171 @default.
- W2276117948 hasRelatedWork W2012425147 @default.
- W2276117948 hasRelatedWork W2028970278 @default.
- W2276117948 hasRelatedWork W2039324554 @default.
- W2276117948 hasRelatedWork W2055214794 @default.
- W2276117948 hasRelatedWork W2104877334 @default.
- W2276117948 hasRelatedWork W2355609211 @default.
- W2276117948 hasRelatedWork W2390369019 @default.
- W2276117948 hasRelatedWork W2403481609 @default.
- W2276117948 hasRelatedWork W2887149949 @default.
- W2276117948 hasVolume "44" @default.
- W2276117948 isParatext "false" @default.
- W2276117948 isRetracted "false" @default.
- W2276117948 magId "2276117948" @default.
- W2276117948 workType "article" @default.