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https://www.readbyqxmd.com/read/29912937/comparison-of-three-non-invasive-hemodynamic-monitoring-methods-in-critically-ill-children
#1
Chanapai Chaiyakulsil, Marut Chantra, Poomiporn Katanyuwong, Anant Khositseth, Nattachai Anantasit
INTRODUCTION: Hemodynamic parameters measurements were widely conducted using pulmonary artery catheter (PAC) with thermodilution as a reference standard. Due to its technical difficulties in children, transthoracic echocardiography (TTE) has been widely employed instead. Nonetheless, TTE requires expertise and is time-consuming. Noninvasive cardiac output monitoring such as ultrasonic cardiac output monitor (USCOM) and electrical velocimetry (EV) can be performed rapidly with less expertise requirement...
2018: PloS One
https://www.readbyqxmd.com/read/29793800/haemodynamic-responses-of-wearing-low-pressure-sports-compression-tights-during-an-orthostatic-challenge-in-healthy-individuals
#2
Daniel C W Lee, Shara W Y Lee, Kim Khaw, Ajmol Ali, Sinead E Sheridan, Stephen H S Wong
OBJECTIVES: While previous studies have demonstrated an ergogenic effect of sport compression garments in exercise performance and recovery, the possible underlying mechanisms remain unclear. Claims for improved venous return from wearing sport compression garments with a low compression pressure remain unproven. The aim of this study was to determine the pressure profile exerted by low-pressure sports compression tights, and to investigate using a non-invasive Doppler ultrasound cardiac output monitor (USCOM), whether the compression applied will influence haemodynamic responses during an orthostatic challenge...
December 15, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29674203/repeatability-of-uscom%C3%A2-measured-cardiac-output-in-normotensive-non-pregnant-and-pregnant-women
#3
J G Mangos, F Pettit, R Preece, K Harris, M A Brown
No abstract text is available yet for this article.
April 2018: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29315095/observational-study-in-healthy-volunteers-to-define-interobserver-reliability-of-ultrasound-haemodynamic-monitoring-techniques-performed-by-trainee-doctors
#4
Benjamin M Bussmann, Shrey Sharma, David Mcgregor, William Hulme, Tim Harris
OBJECTIVES: Bedside ultrasound is increasingly being used to guide fluid management in shocked patients. Little data exist on the inter-rater reliability of techniques used, especially when performed by nonexpert trainee doctors. The primary aim of this study is to measure the inter-rater reliability of five ultrasound techniques commonly used to guide fluid management: inferior vena cava collapsibility index (IVCCI), transthoracic echocardiography (TTE)-derived stroke volumes, ultrasound cardiac output monitor (USCOM) derived stroke volume and carotid artery blood flow and corrected flow time measurements...
January 8, 2018: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/29092664/the-perspective-of-the-intensivist-on-inotropes-and-postoperative-care-following-pediatric-heart-surgery-an-international-survey-and-systematic-review-of-the-literature
#5
Peter P Roeleveld, J C A de Klerk
INTRODUCTION: Inotropes are frequently being used in children undergoing heart surgery to prevent or treat low cardiac output syndrome (LCOS). There is only limited evidence that inotropes actually positively influence postoperative outcome. Our aim was to describe the current international practice variation in the use of inotropes following congenital heart surgery. METHODS: We developed an online survey regarding the postoperative use of inotropes. We sent an invitation to all 197 registered members of the Pediatric Cardiac Intensive Care Society (PCICS) to participate in the survey...
January 2018: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28866972/comparison-of-continous-wave-doppler-ultrasound-monitor-and-echocardiography-to-assess-cardiac-output-in-intensive-care-patients
#6
COMPARATIVE STUDY
Ahmad Elgendy, Ian M Seppelt, Andrew S Lane
BACKGROUND: Continuous-wave Doppler (CWD) ultrasound through the left ventricular outflow tract is one modality used for non-invasive cardiac output measurement. The ultrasonic cardiac output monitor (USCOM) is a relatively new monitor which uses a small, transcutaneous ultrasound probe to measure cardiac output with CWD via the suprasternal window. It is faster and less complex to train new users than conventional echocardiography. In addition to stroke volume (SV), the USCOM can calculate stroke volume variation (SVV) and the Smith-Madigan inotropy index (SMII), which is an estimate of the pre-load independent contractility of the myocardium...
September 2017: Critical Care and Resuscitation: Journal of the Australasian Academy of Critical Care Medicine
https://www.readbyqxmd.com/read/28762449/the-value-of-internal-jugular-vein-collapsibility-index-in-sepsis
#7
Murat Haliloğlu, Beliz Bilgili, Alper Kararmaz, İsmail Cinel
BACKGROUND: Rapid, accurate, and reproducible assessment of intravascular volume status is crucial in order to predict the efficacy of volume expansion in septic patients. The aim of this study was to verify the feasibility and usefulness of the internal jugular vein collapsibility index (IJV-CI) as an adjunct to the inferior vena cava collapsibility index (IVC-CI) to predict fluid responsiveness in spontaneously-breathing patients with sepsis. METHODS: Three stages of sonographic scanning were performed...
July 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28540933/the-effect-of-high-altitude-on-central-blood-pressure-and-arterial-stiffness
#8
C J Boos, E Vincent, A Mellor, D R Woods, C New, R Cruttenden, M Barlow, M Cooke, K Deighton, P Scott, S Clarke, J O'Hara
Central arterial systolic blood pressure (SBP) and arterial stiffness are known to be better predictors of adverse cardiovascular outcomes than brachial SBP. The effect of progressive high altitude (HA) on these parameters has not been examined. Ninety healthy adults were included. Central BP and the augmentation index (AI) were measured at the level of the brachial artery (Uscom BP+ device) at <200 m and at 3619, 4600 and 5140 m. The average age of the subjects (70% men) were 32.2±8.7 years. Compared with central arterial pressures, brachial SBP (+8...
November 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28461601/angiogenic-markers-and-cardiovascular-indices-in-the-prediction-of-hypertensive-disorders-of-pregnancy
#9
Stefan Verlohren, Frank H Perschel, Baskaran Thilaganathan, Lisa Antonia Dröge, Wolfgang Henrich, Andreas Busjahn, Asma Khalil
Angiogenic and antiangiogenic factors have proven to be an accurate predictive means of preeclampsia. Echocardiographic studies have shown that women with preeclampsia exhibit significant cardiovascular strain, especially early-onset preeclampsia. The aim of this study is to determine preeclampsia risk with soluble fms-like tyrosin kinase 1/placental growth factor ratio, serum NT-proBNP (N-terminal pro B-type natriuretic peptide), and biophysical markers of cardiovascular function in a prospective case-control study...
June 2017: Hypertension
https://www.readbyqxmd.com/read/28444896/agreement-between-finger-plethysmography-and-brachial-oscillometry-derived-blood-pressure-measurements
#10
Philip D Allan, Terrence O'Donnell, Yu-Chieh Tzeng
PURPOSE: Blood pressure (BP) is commonly assessed by brachial oscillometry in clinical practice, whereas in physiological studies, finger plethysmography is often employed. This study assessed the limits of agreement between BP metrics obtained from each device. METHODS: In 96 participants, we simultaneously recorded BP by brachial oscillometry (BP+; Uscom, Sydney, NSW, Australia) and finger plethysmography (Finometer MIDI, MLE1054-V; Finapres Medical Systems B...
May 2018: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28437601/maternal-hemodynamics-in-normal-pregnancy-reference-ranges-and-role-of-maternal-characteristics
#11
D Vinayagam, B Thilaganathan, O Stirrup, E Mantovani, A Khalil
OBJECTIVES: The main aim of this study was to construct reference ranges of maternal central hemodynamic parameters during pregnancy. The second aim was to determine the maternal and pregnancy characteristics that influence these hemodynamic parameters. METHODS: This was a prospective cohort study of low-risk pregnant women attending for routine antenatal care at St George's Hospital, London, UK. Exclusion criteria included any medical disorder present at the time of study recruitment, or development of hypertension or intrauterine fetal growth restriction following study recruitment...
May 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28320891/the-normal-ranges-of-cardiovascular-parameters-measured-using-the-ultrasonic-cardiac-output-monitor
#12
Giles N Cattermole, P Y Mia Leung, Grace Y L Ho, Peach W S Lau, Cangel P Y Chan, Stewart S W Chan, Brendan E Smith, Colin A Graham, Timothy H Rainer
The 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...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28320068/thoracic-electrical-bioimpedance-versus-suprasternal-doppler-in-emergency-care
#13
Mohammed H Elwan, Jeremy Hue, Samira J Green, Salah M Eltahan, Mark R Sims, Timothy J Coats
OBJECTIVE: There are a number of cardiac output (CO) monitors that could potentially be used in the ED. Two of the most promising methods, thoracic electrical bioimpedance and suprasternal Doppler, have not been directly compared. The aim of this study was to investigate the feasibility of CO monitoring using suprasternal Doppler and bioimpedance in emergency care and compare haemodynamic data obtained from both monitors. METHODS: Haemodynamic measurements were made on the same group of patients using bioimpedance (Niccomo, Medis, Germany) and suprasternal Doppler (USCOM, Sydney, Australia)...
August 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/28236342/maternal-hemodynamics-early-in-labor-a-possible-link-with-obstetric-risk
#14
H Valensise, G M Tiralongo, I Pisani, D Farsetti, D Lo Presti, G Gagliardi, M R Basile, G P Novelli, B Vasapollo
OBJECTIVE: To determine if hemodynamic assessment in 'low-risk' pregnant women at term with an appropriate-for-gestational age (AGA) fetus can improve the identification of patients who will suffer maternal or fetal/neonatal complications during labor. METHODS: This was a prospective observational study of 77 women with low-risk term pregnancy and AGA fetus, in the early stages of labor. Hemodynamic indices were obtained using the UltraSonic Cardiac Output Monitor (USCOM® ) system...
April 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28151494/relationship-between-maternal-hemodynamics-and-plasma-natriuretic-peptide-concentrations-during-pregnancy-complicated-by-preeclampsia-and-fetal-growth-restriction
#15
S R Giannubilo, A Pasculli, E Tidu, A Biagini, V Boscarato, A Ciavattini
OBJECTIVE: A proper maternal cardiovascular adaptation to the pregnancy plays a key role for promoting an adequate uteroplacental perfusion, for ensuring normal fetal development and for preventing gestational hypertensive complications such as preeclampsia. This study aims to evaluate hemodynamic measurements obtained by noninvasive methods among preclamptic women with and without fetal growth restriction (FGR) and the relationship with plasma levels of natriuretic peptides. STUDY DESIGN: The study compared 98 pregnant women (n=48 with preeclampsia; n=50 normotensive pregnant women) and 50 nonpregnant normotensive control subjects undergoing anultrasonic cardiac output monitor (USCOM) and plasma assessment of atrial N-terminal pro B-type natriuretic peptide (NT-proBNP)...
May 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28150433/impaired-maternal-hemodynamics-in-morbidly-obese-women-a-case-control-study
#16
D Vinayagam, J Gutierrez, J Binder, E Mantovani, B Thilaganathan, A Khalil
OBJECTIVE: Maternal obesity is associated with significant pregnancy complications and is a risk factor for the development of hypertensive disorders of pregnancy as well as other adverse outcomes. There are few data regarding the hemodynamic aberrations observed in maternal obesity. The aim of this study was to investigate maternal hemodynamics in morbidly obese women. METHODS: This was a prospective, case-control study of morbidly obese women (body mass index (BMI) ≥ 40 kg/m2 ) and controls (BMI 20-29...
December 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28088009/cardiac-output-and-systemic-vascular-resistance-clinical-assessment-compared-with-a-noninvasive-objective-measurement-in-children-with-shock
#17
Asma Razavi, Christopher J L Newth, Robinder G Khemani, Fernando Beltramo, Patrick A Ross
PURPOSE: To evaluate physician assessment of cardiac output and systemic vascular resistance in patients with shock compared with an ultrasonic cardiac output monitor (USCOM). To explore potential changes in therapy decisions if USCOM data were available using physician intervention answers. STUDY DESIGN: Double-blinded, prospective, observational study in a tertiary hospital pediatric intensive care unit. Forty children (<18years) admitted with shock, requiring ongoing volume resuscitation or inotropic support...
June 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/27925328/screening-for-pre-eclampsia-in-the-first-trimester-role-of-maternal-hemodynamics-and-bioimpedance-in-non-obese-patients
#18
G Gagliardi, G M Tiralongo, D LoPresti, I Pisani, D Farsetti, B Vasapollo, G P Novelli, A Andreoli, H Valensise
OBJECTIVE: To test if maternal hemodynamics and bioimpedance, assessed at the time of combined screening for PE, are able to identify in the first trimester of gestation normotensive non-obese patients at risk for pre-eclampsia (PE) and/or intrauterine growth restriction (IUGR). METHODS: One hundred and fifty healthy nulliparous non-obese women (body mass index < 30 kg/m2 ) in the first trimester of pregnancy underwent assessment by UltraSonic Cardiac Output Monitor (USCOM) to detect hemodynamic parameters, bioimpedance analysis to characterize body composition, and combined screening for PE (assessment of maternal history, biophysical and maternal biochemical markers)...
November 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27829710/early-norepinephrine-decreases-fluid-and-ventilatory-requirements-in-pediatric-vasodilatory-septic-shock
#19
Suchitra Ranjit, Rajeswari Natraj, Sathish Kumar Kandath, Niranjan Kissoon, Balasubramaniam Ramakrishnan, Paul E Marik
AIMS: We previously reported that vasodilatation was common in pediatric septic shock, regardless of whether they were warm or cold, providing a rationale for early norepinephrine (NE) to increase venous return (VR) and arterial tone. Our primary aim was to evaluate the effect of smaller fluid bolus plus early-NE versus the American College of Critical Care Medicine (ACCM) approach to more liberal fluid boluses and vasoactive-inotropic agents on fluid balance, shock resolution, ventilator support and mortality in children with septic shock...
October 2016: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/27705969/non-invasive-haemodynamic-monitoring-in-pregnancy-a-comparative-study-using-ultrasound-and-bioreactance
#20
COMPARATIVE STUDY
Dimuthu Vinayagam, Sophie Bowe, Elaine Sheehan, Basky Thilaganathan, Asma Khalil
BACKGROUND: Due to the importance of cardiovascular dysfunction and advances in the development and use of non-invasive cardiac output (CO) monitoring devices, there is a growing interest in their use in the obstetric population. The aim of this study was to compare two commercially available, non-invasive CO monitors in the assessment of heart rate (HR), stroke volume (SV), CO, cardiac index (CI) and total peripheral resistance (TPR) in an obstetric population. METHODS: This was a prospective, comparative study including two groups...
2017: Fetal Diagnosis and Therapy
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