Non-Cardiopulmonary Factors Affecting the Six-Minute Walk Distance in Patients with Sickle Cell Disease: Results From the Walk-PHaSST Study
Goel R, Hassell K, Machado R, Barst R, Yovetich N, Kato G, Gordeuk V, Little J, Gibbs J, Schraufnagel D, Girgis R, Rosenzweig E, Morris C, Badesch D, Lanzkron S, Onyekwere O, Nouraie M, Castro O, Sachdev V, Waclawiw M, Woolson R, Goldsmith J, Gladwin M, Krishnamurti L. Non-Cardiopulmonary Factors Affecting the Six-Minute Walk Distance in Patients with Sickle Cell Disease: Results From the Walk-PHaSST Study. Blood 2011, 118: 1074. DOI: 10.1182/blood.v118.21.1074.1074.Peer-Reviewed Original ResearchTR jet velocitySickle cell diseaseSix-minute walk distanceAvascular necrosisMultivariable linear regressionPulmonary hypertensionCell diseasePrimary endpointWalk distanceChronic painSCD patientsSevere genotypeAmerican Thoracic Society guidelinesSix-minute walk testSelf-reported medical historyThoracic Society guidelinesMulti-center studySided p valueGreater predictive valueCardiopulmonary factorsOral sildenafilPain 2NT-proBNPExercise capacityWalk testEchocardiographic Markers of Elevated Pulmonary Pressure and Left Ventricular Diastolic Dysfunction Are Associated With Exercise Intolerance in Adults and Adolescents With Homozygous Sickle Cell Anemia in the United States and United Kingdom
Sachdev V, Kato G, Gibbs J, Barst R, Machado R, Nouraie M, Hassell K, Little J, Schraufnagel D, Krishnamurti L, Novelli E, Girgis R, Morris C, Rosenzweig E, Badesch D, Lanzkron S, Castro O, Taylor J, Hannoush H, Goldsmith J, Gladwin M, Gordeuk V. Echocardiographic Markers of Elevated Pulmonary Pressure and Left Ventricular Diastolic Dysfunction Are Associated With Exercise Intolerance in Adults and Adolescents With Homozygous Sickle Cell Anemia in the United States and United Kingdom. Circulation 2011, 124: 1452-1460. PMID: 21900080, PMCID: PMC3183314, DOI: 10.1161/circulationaha.111.032920.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAnemia, Sickle CellChildEchocardiographyExercise TestExercise ToleranceFamilial Primary Pulmonary HypertensionFemaleHomozygoteHumansHypertension, PulmonaryMaleMiddle AgedMultivariate AnalysisPredictive Value of TestsProspective StudiesPulmonary ArteryTricuspid Valve InsufficiencyUnited KingdomUnited StatesVentricular Dysfunction, LeftYoung AdultConceptsTricuspid regurgitation velocitySickle cell diseaseSickle cell anemiaVentricular diastolic dysfunctionDiastolic dysfunctionCell diseaseCell anemiaPulmonary hypertensionExercise capacityWalk distanceElevated pulmonary artery systolic pressurePulmonary artery systolic pressureSystolic pulmonary artery pressureHomozygous sickle cell anemiaPulmonary pressure elevationLV diastolic dysfunctionLV filling pressurePoor exercise capacityPulmonary artery pressureElevated pulmonary pressuresLong-term outcomesHomozygous hemoglobin SBlood urea nitrogenArtery pressureEchocardiographic markersHospitalization for pain in patients with sickle cell disease treated with sildenafil for elevated TRV and low exercise capacity
Machado R, Barst R, Yovetich N, Hassell K, Kato G, Gordeuk V, Gibbs J, Little J, Schraufnagel D, Krishnamurti L, Girgis R, Morris C, Rosenzweig E, Badesch D, Lanzkron S, Onyekwere O, Castro O, Sachdev V, Waclawiw M, Woolson R, Goldsmith J, Gladwin M. Hospitalization for pain in patients with sickle cell disease treated with sildenafil for elevated TRV and low exercise capacity. Blood 2011, 118: 855-864. PMID: 21527519, PMCID: PMC3148167, DOI: 10.1182/blood-2010-09-306167.Peer-Reviewed Original ResearchConceptsTricuspid regurgitation velocitySickle cell diseaseLower exercise capacityExercise capacityCell diseaseN-terminal pro-brain natriuretic peptideElevated tricuspid regurgitation velocityPro-brain natriuretic peptideSerious adverse eventsPulmonary arterial hypertensionSildenafil trialArterial hypertensionAdverse eventsWalk distanceDoppler echocardiographySCD patientsHospitalization ratesNatriuretic peptidePatientsSildenafilPredominant causePainHospitalizationTreatment effectsDisease