Aymen Alian, MBChB
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Appointments
Anesthesiology
Primary
Titles
Division Chief, Obstetric & Gynecological Anesthesiology
Contact Info
Anesthesiology
PO Box 208051, 333 Cedar Street, TMP 3
New Haven, CT 06520-8051
United States
Appointments
Anesthesiology
Primary
Titles
Division Chief, Obstetric & Gynecological Anesthesiology
Contact Info
Anesthesiology
PO Box 208051, 333 Cedar Street, TMP 3
New Haven, CT 06520-8051
United States
Appointments
Anesthesiology
Primary
Titles
Division Chief, Obstetric & Gynecological Anesthesiology
Contact Info
Anesthesiology
PO Box 208051, 333 Cedar Street, TMP 3
New Haven, CT 06520-8051
United States
About
Titles
Associate Professor of Anesthesiology
Division Chief, Obstetric & Gynecological AnesthesiologyBiography
Dr. Alian is an Associate Professor of Anesthesiology, board certified anesthesiologist, clinical researcher and interim Division Chief for Obstetrics & Gynecologic Anesthesiology. Dr. Alian is a nationally recognized educator and has received several Faculty Awards of Excellence in education and mentorship. His clinical research is dedicated to the investigation of cardiopulmonary and autonomic physiology through the use of non-invasive monitors. Ongoing studies in Dr. Alian’s laboratory focuses on pulse oximetry and cerebral oximetry waveforms as sensitive biomarkers of central hypovolemia during anesthesia-surgery.
Appointments
Anesthesiology
Associate Professor on TermPrimary
Other Departments & Organizations
Education & Training
- Resident
- Yale-New Haven Hospital (2008)
- Intern
- Griffin Hospital (2005)
- MBChB
- Zagazig University (1991)
Research
Overview
Medical Subject Headings (MeSH)
Anesthesiology; Laser-Doppler Flowmetry; Plethysmography
ORCID
0000-0002-4810-8155
Research at a Glance
Yale Co-Authors
Frequent collaborators of Aymen Alian's published research.
Publications Timeline
A big-picture view of Aymen Alian's research output by year.
Kirk Shelley, MD/PhD
Kristen L. Fardelmann, MD
Antonio Gonzalez-Fiol, MD
Katherine Kohari, MD, FACOG
Sonya Abdel-Razeq, MD
Uma Reddy, MD, MPH
13Publications
55Citations
Publications
2024
Graph connection Laplacian allows for enhanced outcomes of consumer camera based photoplethysmography imaging
Borik S, Wu H, Shelley K, Alian A. Graph connection Laplacian allows for enhanced outcomes of consumer camera based photoplethysmography imaging. Biomedical Signal Processing And Control 2024, 96: 106574. DOI: 10.1016/j.bspc.2024.106574.Peer-Reviewed Original Research
2023
A Prospective Cohort Study to Evaluate Needle Passes Using a Portable Ultrasound Device versus Traditional Landmark Approach for Epidural Anesthesia in a Busy Obstetric Tertiary Care Center
Fiol A, Rodriguez P, Zhao X, Gaiser R, Herrera A, Alian A. A Prospective Cohort Study to Evaluate Needle Passes Using a Portable Ultrasound Device versus Traditional Landmark Approach for Epidural Anesthesia in a Busy Obstetric Tertiary Care Center. POCUS Journal 2023, 8: 153-158. PMID: 38099155, PMCID: PMC10721287, DOI: 10.24908/pocus.v8i2.16298.Peer-Reviewed Original ResearchAltmetricConceptsAssessment of changes in blood volume during lower body negative pressure-induced hypovolemia using bioelectrical impedance analysis
Anakmeteeprugsa S, Gonzalez-Fiol A, Vychodil R, Shelley K, Alian A. Assessment of changes in blood volume during lower body negative pressure-induced hypovolemia using bioelectrical impedance analysis. Journal Of Clinical Monitoring And Computing 2023, 38: 293-299. PMID: 37966562, DOI: 10.1007/s10877-023-01098-y.Peer-Reviewed Original ResearchAltmetricConceptsEstimated blood lossBioelectrical impedance analysisBlood lossHealthy volunteersBlood volumeProspective observational studyBody negative pressureSignificant increaseT-testStudent's t-testAcute hemorrhageLBNP protocolLower extremitiesObservational studyHypovolemiaLBNPCompensatory mechanismsPercentage changeReciprocal changesSignificant decreaseBioimpedanceBaselineSignificant correlationMmHgP-valueSignal quality assessment of peripheral venous pressure
Chiu N, Chuang B, Anakmeteeprugsa S, Shelley K, Alian A, Wu H. Signal quality assessment of peripheral venous pressure. Journal Of Clinical Monitoring And Computing 2023, 38: 101-112. PMID: 37917210, DOI: 10.1007/s10877-023-01071-9.Peer-Reviewed Original ResearchCitationsAltmetricConceptsSignal quality indexSignal qualityAdaptive non-harmonic modelSignal quality assessmentLower body negative pressure experimentsHigh qualityPressure experimentsSVM modelWaveformsPVP waveformsPressure waveformPeripheral venous pressure waveformsPVP segmentsOne-subject-out cross validationPowerPractical purposesPressureConvincing potentialContinuous 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 ResearchCitationsMeSH Keywords and ConceptsConceptsTotal 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 biasAntepartumPatientsBaseline rotational thromboelastometry (ROTEM) values in a healthy, diverse obstetric population and parameter changes by pregnancy-induced comorbidities
Fiol A, Yoo J, Yanez D, Fardelmann K, Salimi N, Alian M, Mancini P, Alian A. Baseline rotational thromboelastometry (ROTEM) values in a healthy, diverse obstetric population and parameter changes by pregnancy-induced comorbidities. Baylor University Medical Center Proceedings 2023, 36: 562-571. PMID: 37614857, PMCID: PMC10443986, DOI: 10.1080/08998280.2023.2217534.Peer-Reviewed Original ResearchAltmetricConceptsRotational thromboelastometryCoagulability statusObstetric populationROTEM valuesFIBTEM A10Elevated liver enzymesLow platelets (HELLP) syndromeMaximum clot firmnessClot formation timeBody mass indexPostpartum hemorrhage managementEXTEM A10Recent bleedingCesarean deliveryClot firmnessHypercoagulable profileGestational ageLiver diseasePostpartum hemorrhageRetrospective reviewMass indexBlack raceMaternal ageBlood productsHealthy criteriaUsing 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 ResearchCitationsMeSH Keywords and ConceptsConceptsLower 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
2022
Ultrasound Image Quality Comparison Between a Handheld Ultrasound Transducer and Mid-Range Ultrasound Machine
Salimi N, Gonzalez-Fiol A, Yanez N, Fardelmann K, Harmon E, Kohari K, Abdel-Razeq S, Magriples U, Alian A. Ultrasound Image Quality Comparison Between a Handheld Ultrasound Transducer and Mid-Range Ultrasound Machine. POCUS Journal 2022, 7: 154-159. PMID: 36896280, PMCID: PMC9979954, DOI: 10.24908/pocus.v7i1.15052.Peer-Reviewed Original ResearchCitations10 PPG in clinical monitoring
Alian A, Shelley K. 10 PPG in clinical monitoring. 2022, 341-359. DOI: 10.1016/b978-0-12-823374-0.00006-2.Peer-Reviewed Original ResearchCitationsConceptsSympathetic nervous system activityPulsatile componentDigital signal processingNervous system activityPulse oximeter waveformPulse oximetry devicesBlood volume changesBlood pressureAutonomic functionCardiac outputLow-cost optical techniqueVascular complianceOxygen saturationSignal processingHeart rateBlood volumeClinical monitoringTherapeutic interventionsRespiratory rateMicrovascular bedPPG waveformAvailable medical devicesSystem activityPulse oximeterPhotoplethysmographic waveformReconsider phase reconstruction in signals with dynamic periodicity from the modern signal processing perspective
Alian A, Lo Y, Shelley K, Wu H. Reconsider phase reconstruction in signals with dynamic periodicity from the modern signal processing perspective. Foundations Of Data Science 2022, 4: 355-393. DOI: 10.3934/fods.2022010.Peer-Reviewed Original ResearchCitationsConceptsAdaptive non-harmonic modelVector-valued functionsFundamental physical quantitiesSignal processing perspectiveFunction modelMultiple oscillatory componentsNon-sinusoidal oscillationTime-varying frequencyPhysical quantitiesSame physiological systemsOscillatory time seriesFilter schemeModern signalOscillatory componentsReal-world databasesBiomedical signalsUnified modelFundamental phasesPhase reconstructionTime seriesAnalysis toolsTheoretical supportTime-frequency analysis toolModelProcessing perspective
Clinical Care
Overview
Clinical Specialties
Anesthesiology; Obstetric Anesthesiology
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Pain Management for C-Sections
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Board Certifications
Anesthesiology
- Certification Organization
- AB of Anesthesiology
- Original Certification Date
- 2009
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News
- October 31, 2022
Dr. Christine Won Elected President of Society of Anesthesiology and Sleep Medicine
- February 27, 2018
Dr. Aymen Alian receives two extramural grants to fund his research work.
- November 01, 2017
The Anesthesia department conducted a Ultrasound use for OB Anesthesiology workshop for residents and faculty on 11/05/2017
- January 31, 2017
STA 2017 Annual Meeting: Technology Advancing Perioperative Outcomes
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Anesthesiology
PO Box 208051, 333 Cedar Street, TMP 3
New Haven, CT 06520-8051
United States
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