Matches in SemOpenAlex for { <https://semopenalex.org/work/W2121361271> ?p ?o ?g. }
Showing items 1 to 97 of
97
with 100 items per page.
- W2121361271 endingPage "96" @default.
- W2121361271 startingPage "93" @default.
- W2121361271 abstract "High intensity transient signals (HITS) observed during extracorporeal circulation and following mechanical valve replacement are suspected of causing cognitive dysfunction (deterioration of episodic and working memory). This study evaluates the role played by valve design (bileaflet versus tilting disc) and other parameters in the incidence of HITS.Thirty patients were selected for the study as follows: 18 males, 58-78 years of age; ten St. Jude Medical, ten CarboMedics, ten Medtronic Hall (MH); all size 23, in optimum orientation (Ann Thorac Surg 68 (1999) 1069); all in sinus rhythm; no coronary or carotid artery disease; all in sinus rhythm, international normalized ratio greater than 2.5 and all at least 9 months postoperative. All patients had bilateral HITS measurement in both middle cerebral arteries via transcranial doppler for 30 min. If five HITS or more were observed during the initial 10 min, patients were subjected to 100% oxygen breathing followed by 10 min of normal air breathing. Simultaneously, HITS were measured in the right radial and femoral arteries.Patients with bileaflet valve substitutes revealed HITS rates varying from 32 to 108 counts/h. There was only one HITS observed in the MH valve group during the 5h observation period (0.2 HITS/h). There were no HITS detected in either the radial or the femoral arteries in any patient. After breathing 100% oxygen, HITS significantly decreased or completely disappeared (0-30 HITS/h). When normal air breathing was resumed HITS reappeared or increased. With an intravenous infusion of 100 mg of lysine acetylsalicylate (Aspisol, Bayer Leverkusen, Germany), HITS decreased by 16 to 41%.We conclude that bileaflet mechanical valve prostheses produce HITS even in their optimum orientation. HITS following bileaflet valve replacement have an unstable nature and might be composed of nitrogen and platelets. Tilting disc valves in their optimum orientation provide almost physiological conditions with HITS measured in the same range as bioprosthesis." @default.
- W2121361271 created "2016-06-24" @default.
- W2121361271 creator A5021398861 @default.
- W2121361271 creator A5031043728 @default.
- W2121361271 creator A5040678595 @default.
- W2121361271 creator A5042588186 @default.
- W2121361271 creator A5068782456 @default.
- W2121361271 creator A5081013943 @default.
- W2121361271 date "2003-01-01" @default.
- W2121361271 modified "2023-09-26" @default.
- W2121361271 title "Impact of high intensity transient signals on the choice of mechanical aortic valve substitutes" @default.
- W2121361271 cites W1966685590 @default.
- W2121361271 cites W1974850737 @default.
- W2121361271 cites W1983389143 @default.
- W2121361271 cites W1989285863 @default.
- W2121361271 cites W2012149499 @default.
- W2121361271 cites W2049969074 @default.
- W2121361271 cites W2062939985 @default.
- W2121361271 cites W2067860717 @default.
- W2121361271 cites W2075471126 @default.
- W2121361271 cites W2082497415 @default.
- W2121361271 cites W2088369917 @default.
- W2121361271 cites W2096365100 @default.
- W2121361271 cites W2097853655 @default.
- W2121361271 cites W2102091164 @default.
- W2121361271 cites W2104363552 @default.
- W2121361271 cites W2106199385 @default.
- W2121361271 cites W2116757453 @default.
- W2121361271 cites W2141944779 @default.
- W2121361271 cites W2153341674 @default.
- W2121361271 cites W2303162772 @default.
- W2121361271 cites W2413338050 @default.
- W2121361271 cites W2415464202 @default.
- W2121361271 cites W2419051264 @default.
- W2121361271 cites W2466328364 @default.
- W2121361271 cites W2472946424 @default.
- W2121361271 cites W103444635 @default.
- W2121361271 doi "https://doi.org/10.1016/s1010-7940(02)00677-2" @default.
- W2121361271 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/12493511" @default.
- W2121361271 hasPublicationYear "2003" @default.
- W2121361271 type Work @default.
- W2121361271 sameAs 2121361271 @default.
- W2121361271 citedByCount "24" @default.
- W2121361271 countsByYear W21213612712013 @default.
- W2121361271 countsByYear W21213612712014 @default.
- W2121361271 countsByYear W21213612712017 @default.
- W2121361271 countsByYear W21213612712020 @default.
- W2121361271 crossrefType "journal-article" @default.
- W2121361271 hasAuthorship W2121361271A5021398861 @default.
- W2121361271 hasAuthorship W2121361271A5031043728 @default.
- W2121361271 hasAuthorship W2121361271A5040678595 @default.
- W2121361271 hasAuthorship W2121361271A5042588186 @default.
- W2121361271 hasAuthorship W2121361271A5068782456 @default.
- W2121361271 hasAuthorship W2121361271A5081013943 @default.
- W2121361271 hasBestOaLocation W21213612711 @default.
- W2121361271 hasConcept C126322002 @default.
- W2121361271 hasConcept C164705383 @default.
- W2121361271 hasConcept C191616109 @default.
- W2121361271 hasConcept C2776570981 @default.
- W2121361271 hasConcept C2780007028 @default.
- W2121361271 hasConcept C2780026749 @default.
- W2121361271 hasConcept C2780714102 @default.
- W2121361271 hasConcept C2994232697 @default.
- W2121361271 hasConcept C42219234 @default.
- W2121361271 hasConcept C71924100 @default.
- W2121361271 hasConceptScore W2121361271C126322002 @default.
- W2121361271 hasConceptScore W2121361271C164705383 @default.
- W2121361271 hasConceptScore W2121361271C191616109 @default.
- W2121361271 hasConceptScore W2121361271C2776570981 @default.
- W2121361271 hasConceptScore W2121361271C2780007028 @default.
- W2121361271 hasConceptScore W2121361271C2780026749 @default.
- W2121361271 hasConceptScore W2121361271C2780714102 @default.
- W2121361271 hasConceptScore W2121361271C2994232697 @default.
- W2121361271 hasConceptScore W2121361271C42219234 @default.
- W2121361271 hasConceptScore W2121361271C71924100 @default.
- W2121361271 hasIssue "1" @default.
- W2121361271 hasLocation W21213612711 @default.
- W2121361271 hasLocation W21213612712 @default.
- W2121361271 hasOpenAccess W2121361271 @default.
- W2121361271 hasPrimaryLocation W21213612711 @default.
- W2121361271 hasRelatedWork W2003911247 @default.
- W2121361271 hasRelatedWork W2012751201 @default.
- W2121361271 hasRelatedWork W2018129213 @default.
- W2121361271 hasRelatedWork W2028554734 @default.
- W2121361271 hasRelatedWork W2080354128 @default.
- W2121361271 hasRelatedWork W2088914358 @default.
- W2121361271 hasRelatedWork W2184353247 @default.
- W2121361271 hasRelatedWork W2962813300 @default.
- W2121361271 hasRelatedWork W2971984447 @default.
- W2121361271 hasRelatedWork W4384695966 @default.
- W2121361271 hasVolume "23" @default.
- W2121361271 isParatext "false" @default.
- W2121361271 isRetracted "false" @default.
- W2121361271 magId "2121361271" @default.
- W2121361271 workType "article" @default.