Accuracy of CPAP prescription by different predictive equations in OSAS. (Comunicazione a convegno)

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  • Accuracy of CPAP prescription by different predictive equations in OSAS. (Comunicazione a convegno) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • Marrone O.; Salvaggio A.; Romano S.; Insalaco G. (2006)
    Accuracy of CPAP prescription by different predictive equations in OSAS.
    in XVI congresso annuale della European Respiratory Society, Monaco, 2006
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  • Marrone O.; Salvaggio A.; Romano S.; Insalaco G. (literal)
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  • 28 (literal)
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  • Consiglio Nazionale delle Ricerche-IBIM (literal)
Titolo
  • Accuracy of CPAP prescription by different predictive equations in OSAS. (literal)
Abstract
  • UsefulnessofformulastopredicteffectiveCPAPlevelforOSAStreatmentisunder debate.Inthisstudy,CPAPlevelscalculatedaccordingtofourdifferentformulas [StradlingJRetal,RespirMed(2004)98:152-4;HoheiselGBetal,AmJRespir CritCareMed(1994)149:A496;SérièsFetal,AmJRespirCritCareMed(2000) 162:94-7;HoffsteinVetal,AmJRespirCritCareMed(1994)150:486-8]were comparedtoeffectiveCPAPleveltitratedduringpolysomnography.CPAPtitration waspreformedin136OSASsubjects(22F,age54 ± 11 yrs,BMI34.6 ± 6.1 kg/m2 , AHI58 ± 22) bymeansofoneAPAPdevice(AutosetT,ResMed)applied duringapolysomnographicstudy.Aseffectivepressurewasconsideredthe95th centile pressureleveldeliveredbytheAPAP,correctedaccordingtotheanalysisof polysomnographicsignals.Correlationsbetween calculatedandeffectivepressures werealwayssignificant,butloose(r2 between 0.044and0.139).Differences <=2 cmH2O fromeffectivepressurewerefoundfor78%pressurevaluescalculated by Stradling'sformula,andfor19-46%valuescalculatedbytheotherformulas. Differencesbetween95th centilepressuresandcalculatedpressureswereslightly higher (64%pressurelevelsbyStradling'sformula,and14-32%bytheotherones, differing <=2 cmH2O from95th centilepressures).Differencesbetweeneffective pressureandpressurecalculatedbyStradling'sformularangedbetween-3.5and +6.5 cmH2O. Onlyvaluescalculatedbyoneofthetestedpredictiveformulas approximatedsufficientlytotherealeffectivepressureinahighpercentageof cases, butevenbythatformulaeffectivepressureisnotestimatedwithacceptable accuracyin1outof5cases. (literal)
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