Continuous non-invasive hemodynamic monitoring in early onset severe preeclampsia
Ackerman-Banks C, Bhinder J, Eder M, Heerdt P, Sugeng L, Testani J, Alian A, Lipkind H, Velazquez E, Reddy U, Chou J. Continuous non-invasive hemodynamic monitoring in early onset severe preeclampsia. Pregnancy Hypertension 2023, 34: 27-32. PMID: 37783090, DOI: 10.1016/j.preghy.2023.09.003.Peer-Reviewed Original ResearchConceptsTotal peripheral resistanceCardiac outputSevere preeclampsiaHemodynamic monitoringEarly-onset severe preeclampsiaProspective observational studyOnset severe preeclampsiaContinuous hemodynamic monitoringNon-invasive hemodynamic monitoringEarly preeclampsiaPregnant patientsPeripheral resistanceObservational studyPreeclampsiaLow mean biasDays postpartumNICOMModerate correlationPoor correlationMean biasAntepartumPatientsUsing the ear photoplethysmographic waveform as an early indicator of central hypovolemia in healthy volunteers utilizing LBNP induced hypovolemia model
Eid A, Elgamal M, Gonzalez-Fiol A, Shelley K, Wu H, Alian A. Using the ear photoplethysmographic waveform as an early indicator of central hypovolemia in healthy volunteers utilizing LBNP induced hypovolemia model. Physiological Measurement 2023, 44: 055008. PMID: 37116503, DOI: 10.1088/1361-6579/acd165.Peer-Reviewed Original ResearchConceptsLower body negative pressureCentral hypovolemiaHealthy volunteersNon-invasive cardiac output monitorProgressive lower body negative pressureNoninvasive blood pressure monitorBody negative pressureCardiac output monitorBlood pressure monitorPhotoplethysmographic waveformPulse oximetry probeHypoperfusion symptomsSymptomatic subjectsHemodynamic indicesLBNP stageStroke volumeEarly predictorLT groupHypovolemiaEarly stagesPressure monitorWaveform indicesEarly indicatorWaveform morphologySymptoms