2016
Ventilation-Induced Modulation of Pulse Oximeter Waveforms
Alian AA, Atteya G, Gaal D, Golembeski T, Smith BG, Dai F, Silverman DG, Shelley K. Ventilation-Induced Modulation of Pulse Oximeter Waveforms. Anesthesia & Analgesia 2016, 123: 346-356. PMID: 27284998, DOI: 10.1213/ane.0000000000001377.Peer-Reviewed Original ResearchConceptsSystolic blood pressureArterial pressure waveformBlood volumeFluid resuscitationBlood pressureOnly systolic blood pressurePressure waveformAirway pressure waveformFinger pulse oximetrySubstantial blood lossDynamic preload indicesVenous blood volumeArterial pressure measurementsArterial waveform parametersP-valuePulse oximeter waveformWilcoxon signed-rank testArterial pressureBlood lossBlood transfusionEarly bleedingPediatric patientsPreload indexHemodynamic dataScoliosis surgery
2014
Analysis of plethysmographic waveform changes induced by beach chair positioning under general anesthesia
Zhu R, Atteya G, Shelley KH, Silverman DG, Alian AA. Analysis of plethysmographic waveform changes induced by beach chair positioning under general anesthesia. Journal Of Clinical Monitoring And Computing 2014, 28: 591-596. PMID: 24420341, DOI: 10.1007/s10877-014-9555-9.Peer-Reviewed Original ResearchConceptsBeach chair positioningVasoactive drugsBlood pressureShoulder surgeryNoninvasive hemodynamic parametersPostoperative cerebral ischemiaMean arterial pressureTidal carbon dioxideBeach chair positionIntermittent blood pressureChair positionWilcoxon signed-rank testPosition surgeryArterial pressureCerebral ischemiaGeneral anesthesiaSigned-rank testHemodynamic parametersRare caseDevastating outcomesHeart rateRespiratory frequencyPatientsSurgeryAmplitude density
2010
Measuring venous oxygenation using the photoplethysmograph waveform
Walton ZD, Kyriacou PA, Silverman DG, Shelley KH. Measuring venous oxygenation using the photoplethysmograph waveform. Journal Of Clinical Monitoring And Computing 2010, 24: 295-303. PMID: 20644985, DOI: 10.1007/s10877-010-9248-y.Peer-Reviewed Original ResearchConceptsVenous saturationVenous systemRegional venous oxygen saturationPeripheral venous waveformCardiac surgery patientsVenous oxygen saturationPeripheral venous systemPhotoplethysmograph waveformsWilcoxon signed-rank testVenous waveformSurgery patientsAtrial contractionSigned-rank testVenous bloodVenous oxygenationOxygen saturationGold standardPPG characteristicsHigh complianceBonferroni correctionSignificant differencesPPG analysisBloodPPG waveformPatients