Matches in SemOpenAlex for { <https://semopenalex.org/work/W2535795336> ?p ?o ?g. }
Showing items 1 to 70 of
70
with 100 items per page.
- W2535795336 endingPage "372" @default.
- W2535795336 startingPage "369" @default.
- W2535795336 abstract "The Bjork-Shiley cardiac-valve prosthesis with a 60° opening convexoconcave disc (BSCC) has failed by fracture at the base of the outlet (short) strut in 206 patients as of March, 1987. There are approximately 25,000 29- to 33-mmand 57,600 21-to 27-mm valves implanted worldwide although 57% of fractures were among 9,400 29-to 33-mm valves manufactured between February 1981 and June 1982. Once mechanical failure of a valve occurs, reoperation is required within hours. It would be useful, therefore, to identify fracture of a strut before complete failure of the valve occurs. For this purpose, we evaluated in vitro the potential of spectral analysis of the prosthetic valve sound as a noninvasive indicator of strut fracture. An intact 29-mm BSCC valve and a normally functioning 29-mm BSCC valve with a through-and-through fracture of the outlet strut at one welding point were examined in the mitral position of a pulse duplicator (pressure 120/80 mm Hg, rate 70/min). Clear differences of the opening sound were observed. The dominant frequency of the opening sound of the intact valve was 234 Hz and the valve with a fractured strut was 78 Hz. A correlation between the frequency spectrum of the opening sound of the two valves was poor (correlation coefficient of 0.22), indicating a marked difference of the spectral signature. These in vitro observations suggest that frequency analysis of the opening sound of BSCC valves has the potential for a noninvasive identification of subclinical strut fracture." @default.
- W2535795336 created "2016-10-28" @default.
- W2535795336 creator A5062221457 @default.
- W2535795336 creator A5082938072 @default.
- W2535795336 creator A5089318838 @default.
- W2535795336 creator A5091291156 @default.
- W2535795336 date "1987-01-01" @default.
- W2535795336 modified "2023-09-25" @default.
- W2535795336 title "Spectral Signature of the Opening Sound of the Bjork-Shiley Convexoconcave Valve as a Potential Indicator of Strut Fracture" @default.
- W2535795336 doi "https://doi.org/10.1159/000470796" @default.
- W2535795336 hasPublicationYear "1987" @default.
- W2535795336 type Work @default.
- W2535795336 sameAs 2535795336 @default.
- W2535795336 citedByCount "3" @default.
- W2535795336 crossrefType "journal-article" @default.
- W2535795336 hasAuthorship W2535795336A5062221457 @default.
- W2535795336 hasAuthorship W2535795336A5082938072 @default.
- W2535795336 hasAuthorship W2535795336A5089318838 @default.
- W2535795336 hasAuthorship W2535795336A5091291156 @default.
- W2535795336 hasConcept C121332964 @default.
- W2535795336 hasConcept C141071460 @default.
- W2535795336 hasConcept C159985019 @default.
- W2535795336 hasConcept C164705383 @default.
- W2535795336 hasConcept C192562407 @default.
- W2535795336 hasConcept C203718221 @default.
- W2535795336 hasConcept C24890656 @default.
- W2535795336 hasConcept C2776229121 @default.
- W2535795336 hasConcept C2777543888 @default.
- W2535795336 hasConcept C2778715743 @default.
- W2535795336 hasConcept C2983668108 @default.
- W2535795336 hasConcept C32891209 @default.
- W2535795336 hasConcept C43369102 @default.
- W2535795336 hasConcept C62520636 @default.
- W2535795336 hasConcept C71924100 @default.
- W2535795336 hasConceptScore W2535795336C121332964 @default.
- W2535795336 hasConceptScore W2535795336C141071460 @default.
- W2535795336 hasConceptScore W2535795336C159985019 @default.
- W2535795336 hasConceptScore W2535795336C164705383 @default.
- W2535795336 hasConceptScore W2535795336C192562407 @default.
- W2535795336 hasConceptScore W2535795336C203718221 @default.
- W2535795336 hasConceptScore W2535795336C24890656 @default.
- W2535795336 hasConceptScore W2535795336C2776229121 @default.
- W2535795336 hasConceptScore W2535795336C2777543888 @default.
- W2535795336 hasConceptScore W2535795336C2778715743 @default.
- W2535795336 hasConceptScore W2535795336C2983668108 @default.
- W2535795336 hasConceptScore W2535795336C32891209 @default.
- W2535795336 hasConceptScore W2535795336C43369102 @default.
- W2535795336 hasConceptScore W2535795336C62520636 @default.
- W2535795336 hasConceptScore W2535795336C71924100 @default.
- W2535795336 hasIssue "6" @default.
- W2535795336 hasLocation W25357953361 @default.
- W2535795336 hasOpenAccess W2535795336 @default.
- W2535795336 hasPrimaryLocation W25357953361 @default.
- W2535795336 hasRelatedWork W1604257120 @default.
- W2535795336 hasRelatedWork W17112474 @default.
- W2535795336 hasRelatedWork W173724051 @default.
- W2535795336 hasRelatedWork W1993290535 @default.
- W2535795336 hasRelatedWork W2029041091 @default.
- W2535795336 hasRelatedWork W2030405705 @default.
- W2535795336 hasRelatedWork W2418790951 @default.
- W2535795336 hasRelatedWork W2425438383 @default.
- W2535795336 hasRelatedWork W2515939801 @default.
- W2535795336 hasRelatedWork W3182906432 @default.
- W2535795336 hasVolume "1" @default.
- W2535795336 isParatext "false" @default.
- W2535795336 isRetracted "false" @default.
- W2535795336 magId "2535795336" @default.
- W2535795336 workType "article" @default.