2008
Comparing the effect of arginine vasopressin on ear and finger photoplethysmography
Jablonka DH, Awad AA, Stout RG, Silverman DG, Shelley KH. Comparing the effect of arginine vasopressin on ear and finger photoplethysmography. Journal Of Clinical Anesthesia 2008, 20: 90-93. PMID: 18410861, DOI: 10.1016/j.jclinane.2007.09.008.Peer-Reviewed Original ResearchConceptsArginine vasopressin injectionArginine vasopressinVasopressin injectionASA physical status IArginine-vasopressin effectPhysical status IObservational human studiesArginine vasopressin administrationMyomectomy surgeryPlethysmographic amplitudeStatus IIntrauterine injectionUniversity HospitalGreater vasoconstrictionVasopressin administrationFinger photoplethysmographyPhotoplethysmographic amplitudeAdrenergic activationBlood flowHuman studiesFinger signalsVasopressin effectVasopressinInjectionEar
2007
The relationship between the photoplethysmographic waveform and systemic vascular resistance
Awad AA, Haddadin AS, Tantawy H, Badr TM, Stout RG, Silverman DG, Shelley KH. The relationship between the photoplethysmographic waveform and systemic vascular resistance. Journal Of Clinical Monitoring And Computing 2007, 21: 365-372. PMID: 17940842, DOI: 10.1007/s10877-007-9097-5.Peer-Reviewed Original ResearchConceptsSystemic vascular resistancePlethysmographic amplitudeVascular resistanceLow systemic vascular resistanceCoronary artery bypassPeripheral vascular toneContinuous cardiac outputPulse oximeter waveformPlethysmographic tracingsArtery bypassAdult patientsVascular toneCardiac outputThermodilution catheterBland-Altman analysisCorrelation r valuesMultiple regression analysisRegression analysisPhotoplethysmographic waveformCharacteristic analysisFingerAppreciation of changesMethodsPatientsPhotoplethysmographic measurementsLinear regression
2006
Modeling Perioperative Risk: Can Numbers Speak Louder Than Words?
Holt NF, Silverman DG. Modeling Perioperative Risk: Can Numbers Speak Louder Than Words? Anesthesiology Clinics 2006, 24: 427-459. PMID: 17240601, DOI: 10.1016/j.atc.2006.05.007.Peer-Reviewed Original Research
2002
Distinction between Atropine-Sensitive Control of Microvascular and Cardiac Oscillatory Activity
Silverman DG, Stout RG. Distinction between Atropine-Sensitive Control of Microvascular and Cardiac Oscillatory Activity. Microvascular Research 2002, 63: 196-208. PMID: 11866543, DOI: 10.1006/mvre.2001.2385.Peer-Reviewed Original ResearchConceptsPhenylephrine infusionHeart rateOscillatory activityLaser Doppler flowmetryR wave intervalsAdrenergic predominanceProximal vasculatureIntravenous atropineBlood pressureCholinergic responsesSystemic infusionDoppler flowmetrySystemic flowHealthy volunteersMicrovascular flowSystemic pressureRespiratory frequencyRespiratory rateMicrovascular bedInfusionR wavePhenylephrineMicrovasculatureOscillatory powerBaseline
1999
Comparison of ropivacaine 0.2% and lidocaine 0.5% for intravenous regional anesthesia in volunteers.
Hartmannsgruber M, Silverman D, Halaszynski T, Bobart V, Brull S, Wilkerson C, Loepke A, Atanassoff P. Comparison of ropivacaine 0.2% and lidocaine 0.5% for intravenous regional anesthesia in volunteers. Anesthesia & Analgesia 1999, 89: 727-31. PMID: 10475314, DOI: 10.1097/00000539-199909000-00037.Peer-Reviewed Original ResearchConceptsIV regional anesthesiaSystemic side effectsRegional anesthesiaSide effectsResponse to tetanic stimuliCentral nervous system side effectsTourniquet releaseNervous system side effectsDouble-cuff techniqueOnset time of anesthesiaAdministration of ropivacaineProlonged sensory blockadeIntravenous regional anesthesiaNumeric scoring scaleTime of anesthesiaTourniquet painDistal tourniquetNo significant differenceSensory blockadePinprick sensationProlonged analgesiaMotor blockadeLight-headednessRopivacaineSurgical conditions
1994
Peripheral assessment of phenylephrine-induced vasoconstriction by laser Doppler flowmetry and its potential relevance to homeostatic mechanisms.
Silverman DG, Jotkowitz AB, Freemer M, Gutter V, O'Connor TZ, Braverman IM. Peripheral assessment of phenylephrine-induced vasoconstriction by laser Doppler flowmetry and its potential relevance to homeostatic mechanisms. Circulation 1994, 90: 23-26. PMID: 8026002, DOI: 10.1161/01.cir.90.1.23.Peer-Reviewed Original ResearchConceptsLaser Doppler flowmetryBlood pressureDoppler flowmetrySkin perfusionPressure cuffHeart rateBrachial blood pressure cuffBlood cellsCutaneous laser-Doppler flowmetryDiastolic blood pressurePhenylephrine-induced vasoconstrictionBlood pressure cuffLaser Doppler flowmeter probeRed cell fluxLaser Doppler readingsForearm vasodilationPeripheral assessmentVasoconstrictive stimuliBaroreceptor activityRed blood cellsForearm vesselsIntravenous infusionSystemic infusionVasoactive stimuliHealthy volunteers