2020
Real-Time Prediction of Acute Kidney Injury in Hospitalized Adults: Implementation and Proof of Concept
Ugwuowo U, Yamamoto Y, Arora T, Saran I, Partridge C, Biswas A, Martin M, Moledina DG, Greenberg JH, Simonov M, Mansour SG, Vela R, Testani JM, Rao V, Rentfro K, Obeid W, Parikh CR, Wilson FP. Real-Time Prediction of Acute Kidney Injury in Hospitalized Adults: Implementation and Proof of Concept. American Journal Of Kidney Diseases 2020, 76: 806-814.e1. PMID: 32505812, PMCID: PMC8667815, DOI: 10.1053/j.ajkd.2020.05.003.Peer-Reviewed Original ResearchConceptsAKI alertsHospitalized adultsKidney injuryUrban tertiary care hospitalAcute kidney injurySerum creatinine levelsObservational cohort studyTertiary care hospitalSerum creatinine concentrationBeats/minElectronic health recordsAKI diagnosisCohort studyCreatinine levelsInpatient mortalitySystolic bloodFractional excretionCenter studyBlood biomarkersUnivariable associationsUrine microscopyCreatinine concentrationClinical careElevated riskUrea nitrogen
2018
The prognostic role of different renal function phenotypes in patients with acute heart failure
Palazzuoli A, Ruocco G, Pellicori P, Incampo E, Di Tommaso C, Favilli R, Evangelista I, Nuti R, Testani JM. The prognostic role of different renal function phenotypes in patients with acute heart failure. International Journal Of Cardiology 2018, 276: 198-203. PMID: 30503187, DOI: 10.1016/j.ijcard.2018.11.108.Peer-Reviewed Original ResearchConceptsAcute heart failureBUN increaseHeart failureIndependent predictorsPrognostic roleAdverse outcomesGlomerular filtration rate reductionBlood nitrogen ureaSigns of HFRenal function deteriorationBUN changeClinical congestionEffective decongestionFunction deteriorationRenal functionSerum creatininePoor outcomePrognostic relevanceComplete resolutionClinical signsPatientsNitrogen ureaHospitalizationBUNOutcomes
2016
Reduced Cardiac Index Is Not the Dominant Driver of Renal Dysfunction in Heart Failure
Hanberg JS, Sury K, Wilson FP, Brisco MA, Ahmad T, Maaten J, Broughton JS, Assefa M, Tang WH, Parikh CR, Testani JM. Reduced Cardiac Index Is Not the Dominant Driver of Renal Dysfunction in Heart Failure. Journal Of The American College Of Cardiology 2016, 67: 2199-2208. PMID: 27173030, PMCID: PMC4867078, DOI: 10.1016/j.jacc.2016.02.058.Peer-Reviewed Original ResearchConceptsPulmonary artery catheterizationBlood urea nitrogenCardiac indexRenal functionHeart failureRenal dysfunctionGood renal functionReduced cardiac indexHigher cardiac indexGlomerular filtration rateSignificant inverse correlationMultiple subgroupsMulticenter populationWorse eGFRHF patientsCreatinine ratioArtery catheterizationPatient subgroupsFiltration rateSerial assessmentLinear mixed modelingESCAPE trialPatientsUrea nitrogenDysfunctionThe risk of death associated with proteinuria in heart failure is restricted to patients with an elevated blood urea nitrogen to creatinine ratio
Brisco MA, Zile MR, Maaten J, Hanberg JS, Wilson FP, Parikh C, Testani JM. The risk of death associated with proteinuria in heart failure is restricted to patients with an elevated blood urea nitrogen to creatinine ratio. International Journal Of Cardiology 2016, 215: 521-526. PMID: 27153048, PMCID: PMC4986924, DOI: 10.1016/j.ijcard.2016.04.100.Peer-Reviewed Original ResearchConceptsElevated blood urea nitrogenBUN/CrRenal dysfunctionBlood urea nitrogenCreatinine ratioUrea nitrogenLeft Ventricular Dysfunction (SOLVD) trialVentricular Dysfunction trialsGlomerular filtration rateRisk of deathBaseline characteristicsWorsened survivalAdverse eventsHeart failureTop tertileFiltration rateBottom tertileProteinuriaSurvival disadvantagePatientsMortalityTertileDysfunctionSurvivalSurvival models
2015
Blood urea nitrogen to creatinine ratio is associated with congestion and mortality in heart failure patients with renal dysfunction
Parrinello G, Torres D, Testani JM, Almasio PL, Bellanca M, Pizzo G, Cuttitta F, Pinto A, Butler J, Paterna S. Blood urea nitrogen to creatinine ratio is associated with congestion and mortality in heart failure patients with renal dysfunction. Internal And Emergency Medicine 2015, 10: 965-972. PMID: 26037394, DOI: 10.1007/s11739-015-1261-1.Peer-Reviewed Original ResearchConceptsBUN/CrInferior vena cavaRenal dysfunctionHeart failureVenous congestionBUN/Cr ratioMultiple logistic regression modelNYHA class 3Independent risk factorLong-term mortalityHeart failure patientsGlomerular filtration rateBlood urea nitrogenReceiver-operating characteristic analysisLogistic regression modelsCause deathHF outpatientsHF severityLower eGFRRenal functionAmbulatory visitsFailure patientsCreatinine ratioSingle centerRenal biomarkers
2014
A Combined-Biomarker Approach to Clinical Phenotyping Renal Dysfunction in Heart Failure
Testani JM, Damman K, Brisco MA, Chen S, Laur O, Kula AJ, Tang WH, Parikh C. A Combined-Biomarker Approach to Clinical Phenotyping Renal Dysfunction in Heart Failure. Journal Of Cardiac Failure 2014, 20: 912-919. PMID: 25152498, PMCID: PMC4292792, DOI: 10.1016/j.cardfail.2014.08.008.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedBiomarkersBlood Urea NitrogenCardio-Renal SyndromeCohort StudiesConfidence IntervalsCreatinineFemaleGlomerular Filtration RateHeart FailureHospitals, UniversityHumansMaleMiddle AgedPhenotypePrognosisRenal InsufficiencyRetrospective StudiesSensitivity and SpecificityStatistics, NonparametricSurvival RateConceptsB-type natriuretic peptideElevated B-type natriuretic peptideRenal dysfunctionHeart failureLower B-type natriuretic peptideUse of BNPCombined biomarker approachDecompensated heart failureIntrinsic kidney diseaseBlood urea nitrogenDifferent clinical phenotypesBUN/Diuretic resistanceInotrope useWorse survivalCreatinine ratioRisk stratificationDischarge diagnosisNatriuretic peptideVenous congestionKidney diseaseStratify patientsClinical phenotypingPatientsUrea nitrogen
2013
Blood Urea Nitrogen/Creatinine Ratio Identifies a High-Risk but Potentially Reversible Form of Renal Dysfunction in Patients With Decompensated Heart Failure
Brisco MA, Coca SG, Chen J, Owens AT, McCauley BD, Kimmel SE, Testani JM. Blood Urea Nitrogen/Creatinine Ratio Identifies a High-Risk but Potentially Reversible Form of Renal Dysfunction in Patients With Decompensated Heart Failure. Circulation Heart Failure 2013, 6: 233-239. PMID: 23325460, PMCID: PMC4067251, DOI: 10.1161/circheartfailure.112.968230.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBiomarkersBlood Urea NitrogenCardio-Renal SyndromeChi-Square DistributionCreatinineFemaleGlomerular Filtration RateHeart FailureHumansKaplan-Meier EstimateKidneyLogistic ModelsMaleMiddle AgedMultivariate AnalysisOdds RatioPatient AdmissionPrognosisProportional Hazards ModelsRetrospective StudiesRisk AssessmentRisk FactorsTime FactorsUp-RegulationConceptsReversible renal dysfunctionBUN/CrBlood urea nitrogen/creatinine ratioUrea nitrogen/creatinine ratioHeart failureRenal functionRenal dysfunctionCreatinine ratioElevated BUN/CrPatients meeting eligibility criteriaDecompensated heart failure patientsDecompensated heart failureHigh-risk patientsHeart failure patientsGlomerular filtration rateRisk of deathMeeting eligibility criteriaConsecutive hospitalizationsBaseline characteristicsFailure patientsDischarge diagnosisFiltration rateEligibility criteriaPatientsReversible form
2011
Interaction Between Loop Diuretic-Associated Mortality and Blood Urea Nitrogen Concentration in Chronic Heart Failure
Testani JM, Cappola TP, Brensinger CM, Shannon RP, Kimmel SE. Interaction Between Loop Diuretic-Associated Mortality and Blood Urea Nitrogen Concentration in Chronic Heart Failure. Journal Of The American College Of Cardiology 2011, 58: 375-382. PMID: 21757114, PMCID: PMC3980479, DOI: 10.1016/j.jacc.2011.01.052.Peer-Reviewed Original ResearchConceptsHigh-dose loop diureticsBlood urea nitrogenLoop diureticsBUN levelsNeurohormonal activationBaseline characteristicsHeart failureNormal BUN levelChronic heart failureRisk of deathBlood urea nitrogen concentrationElevated BUN levelsCongestive symptomsOverall cohortWorsened survivalImproved survivalPrimary outcomeAdverse outcomesUrea nitrogen concentrationDiureticsUrea nitrogenBUN concentrationPatientsMortalitySurvival