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dc.contributor.authorCattermole, Giles N-
dc.contributor.authorLeung, P Y Mia-
dc.contributor.authorHo, Grace Y L-
dc.contributor.authorLau, Peach W S-
dc.contributor.authorChan, Cangel P Y-
dc.contributor.authorChan, Stewart S W-
dc.contributor.authorSmith, Brendan E-
dc.contributor.authorGraham, Colin A-
dc.contributor.authorRainer, Timothy H-
dc.identifier.citationPhysiological reports 2017-03; 5(6): e13195-
dc.description.abstractThe ultrasonic cardiac output monitor (USCOM) is a noninvasive transcutaneous continuous wave Doppler method for assessing hemodynamics. There are no published reference ranges for normal values in adults (aged 18-60 years) for this device. This study aimed to (1) measure cardiovascular indices using USCOM in healthy adults aged 18-60 years; (2) combine these data with those for healthy children (aged 0-12), adolescents (aged 12-18), and the elderly (aged over 60) from our previously published studies in order to present normal ranges for all ages, and (3) establish normal ranges of USCOM-derived variables according to both weight and age. This was a population-based cross-sectional observational study of healthy Chinese subjects aged 0.5-89 years in Hong Kong. USCOM scans were performed on all subjects, to produce measurements including stroke volume, cardiac output, and systemic vascular resistance. Data from previously published studies (children, adolescents, and the elderly) were included. Normal ranges were defined as lying between the 2.5th and 97.5th percentiles. A total of 2218 subjects were studied (mean age = 16.4, range = 0.5-89; 52% male). From previous studies, 1197 children (aged 0-12, 55% male), 590 adolescents (aged 12-18, 49% male), and 77 elderly (aged 60-89, 55% male) were included. New data were collected from 354 adults aged 18-60 (47% male). Normal ranges are presented according to age and weight. We present comprehensive normal ranges for hemodynamic parameters obtained with USCOM in healthy subjects of all ages from infancy to the elderly.-
dc.titleThe normal ranges of cardiovascular parameters measured using the ultrasonic cardiac output monitor-
dc.typeJournal Article-
dc.typeObservational Study-
dc.identifier.journaltitlePhysiological reports-
dc.identifier.affiliationSchool of Medicine, University of Notre Dame Australia, Sydney, New South Wales, Australiaen
dc.identifier.affiliationEmergency Department, Centre Hospitalier Universitaire de Kigali, Kigali, Rwanda-
dc.identifier.affiliationDepartment of Medicine, Austin/Northern Health, Melbourne, Australiaen
dc.identifier.affiliationDepartment of Medicine, Western Health, Melbourne, Australiaen
dc.identifier.affiliationAccident and Emergency Department, Queen Elizabeth Hospital, Hong Kong SAR.-
dc.identifier.affiliationAccident and Emergency Medicine Academic Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR.-
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