2012
Using Time-Frequency Analysis of the Photoplethysmographic Waveform to Detect the Withdrawal of 900 mL of Blood
Scully CG, Selvaraj N, Romberg FW, Wardhan R, Ryan J, Florian JP, Silverman DG, Shelley KH, Chon KH. Using Time-Frequency Analysis of the Photoplethysmographic Waveform to Detect the Withdrawal of 900 mL of Blood. Anesthesia & Analgesia 2012, 115: 74-81. PMID: 22543068, DOI: 10.1213/ane.0b013e318256486c.Peer-Reviewed Original ResearchMeSH KeywordsAdultBlood PressureBlood Pressure DeterminationBlood Transfusion, AutologousBlood VolumeBlood Volume DeterminationCluster AnalysisConnecticutElectrocardiographyHeart RateHumansHypovolemiaInfrared RaysMalePhotoplethysmographyPredictive Value of TestsRespiratory MechanicsSensitivity and SpecificitySignal Processing, Computer-AssistedTime FactorsConceptsML of bloodArterial blood pressureBlood lossBlood pressureHeart rateHeart rate frequencyBlood withdrawalML blood lossMean percent decreaseBlood volume lossHeart rate componentSignificant changesPhotoplethysmographic waveformSpontaneous breathingTrauma settingCuff measurementsPPG waveformBlood reinfusionHealthy volunteersStandard electrocardiogramBloodEarly detectionEar PPG signalsBaselineConfidence intervalsRespiratory Physiology and the Impact of Different Modes of Ventilation on the Photoplethysmographic Waveform
Alian AA, Shelley KH. Respiratory Physiology and the Impact of Different Modes of Ventilation on the Photoplethysmographic Waveform. Sensors 2012, 12: 2236-2254. PMID: 22438762, PMCID: PMC3304164, DOI: 10.3390/s120202236.Peer-Reviewed Original Research
2009
Peripheral venous pressure waveform
Wardhan R, Shelley K. Peripheral venous pressure waveform. Current Opinion In Anaesthesiology 2009, 22: 814. PMID: 19844178, DOI: 10.1097/aco.0b013e328332a343.Peer-Reviewed Original ResearchConceptsPeripheral venous pressure waveformsPeripheral intravenous cathetersPeripheral venous pressurePeripheral venous systemCarotid artery puncturePressure waveformVenous waveformVenous pressureArtery punctureIntraoperative monitoringIntravenous cathetersVenous systemRespiratory variationCardiovascular homeostasisInvasive monitoringArterial waveformProcedure timeVenous componentPhysiologic challengesFurther studiesCirculatory systemInexpensive monitoring deviceNumerous studiesCritical rolePneumothorax
2001
Different Responses of Ear and Finger Pulse Oximeter Wave Form to Cold Pressor Test
Awad A, Ghobashy M, Ouda W, Stout R, Silverman D, Shelley K. Different Responses of Ear and Finger Pulse Oximeter Wave Form to Cold Pressor Test. Anesthesia & Analgesia 2001, 92: 1483-1486. PMID: 11375830, DOI: 10.1097/00000539-200106000-00026.Peer-Reviewed Original ResearchMeSH KeywordsAdultCold TemperatureEarFemaleFingersHumansImmersionMaleMiddle AgedOximetryPlethysmographyPressureRegional Blood FlowRespiratory MechanicsVasoconstrictionConceptsCold pressor testVasoconstrictive responsePressor testIce water immersionPlethysmographic amplitudeVasoconstrictive effectSympathetic toneContralateral handHealthy volunteersSystemic circulationIRB approvalCold stimuliClinical settingEarSignificant disparitiesSignificant changesSuitable monitorFingerResponseEar signalsWater immersionPlethysmography