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Cardiac Output monitors

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https://www.readbyqxmd.com/read/28429475/common-carotid-artery-sonography-versus-transthoracic-echocardiography-for-cardiac-output-measurements-in-intensive-care-unit-patients
#1
Qian-Yi Peng, Li-Na Zhang, Mei-Lin Ai, Li Li, Cheng-Huan Hu, Yan-Xin Zhang, Wei Liu, Qing Feng, Yu Zou, Yu-Hang Ai
OBJECTIVES: This study was designed to test the effectiveness of common carotid artery sonography in comparison with transthoracic echocardiography (TTE) for cardiac output measurements to provide an easier alternative for cardiac output monitoring in the intensive care unit. METHODS: This study included 148 patients who had common carotid artery Doppler examinations and TTE performed within 8 hours of each other, and the cardiac output measurement results were compared with each other...
April 21, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28427378/assessment-of-cardiac-function-in-children-with-congenital-adrenal-hyperplasia-a-case-control-study-in-cameroon
#2
J Tony Nengom, S Sap Ngo Um, D Chelo, R Mbono Betoko, J Boombhi, F Mouafo Tambo, A Chiabi, S Kingue, P Koki Ndombo
BACKGROUND: High level of androgens found in congenital adrenal hyperplasia (CAH) seems to have a deleterious effect on heart function. We therefore evaluate cardiac function of children with CAH in comparison with a healthy group. METHODS: We carried out a case-control study in the single endocrinology unit of the Mother and Child Center of Chantal Biya's Foundation. Cases were matched for age and genotypic sex to 2 healthy controls. We analyzed the ejection fraction (LVEF), fractional shortening and left ventricular mass; output and cardiac index; E and A waves velocities, E/A ratio and the mitral deceleration time and diameter of the left atrium; tricuspid annular plane systolic excursion and pulmonary artery systolic pressure were also measured...
April 20, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28421173/cerebral-autoregulation-brain-injury-and-the-transitioning-premature-infant
#3
REVIEW
Zachary A Vesoulis, Amit M Mathur
Improvements in clinical management of the preterm infant have reduced the rates of the two most common forms of brain injury, such as severe intraventricular hemorrhage and white matter injury, both of which are contributory factors in the development of cerebral palsy. Nonetheless, they remain a persistent challenge and are associated with a significant increase in the risk of adverse neurodevelopment outcomes. Repeated episodes of ischemia-reperfusion represent a common pathway for both forms of injury, arising from discordance between systemic blood flow and the innate regulation of cerebral blood flow in the germinal matrix and periventricular white matter...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28410347/accuracy-of-zero-heat-flux-cutaneous-temperature-in-intensive-care-adults
#4
Claire Dahyot-Fizelier, Solène Lamarche, Thomas Kerforne, Thierry Bénard, Benoit Giraud, Rémy Bellier, Elsa Carise, Denis Frasca, Olivier Mimoz
OBJECTIVES: To compare accuracy of a continuous noninvasive cutaneous temperature using zero-heat-flux method to esophageal temperature and arterial temperature. DESIGN: Prospective study. SETTING: ICU and NeuroICU, University Hospital. PATIENTS: Fifty-two ICU patients over a 4-month period who required continuous temperature monitoring were included in the study, after informed consent. INTERVENTIONS: All patients had esophageal temperature probe and a noninvasive cutaneous device to monitor their core temperature continuously...
April 13, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28404439/haemodynamic-changes-during-labour-continuous-minimally-invasive-monitoring-in-20-healthy-parturients
#5
J C Kuhn, R Sørum Falk, E Langesæter
BACKGROUND: There are few studies on maternal haemodynamic changes during labour. None have used continuous cardiac output monitoring during all labour stages. In this observational study, we monitored haemodynamic variables continuously during the entire course of labour in healthy parturients. METHODS: Continuous haemodynamic monitoring with the LiDCOplus technique was performed in 20 healthy parturients during spontaneous labour, vaginal delivery and for 15minutes postpartum...
March 10, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28403411/comparison-of-bioreactance-and-echocardiographic-non-invasive-cardiac-output-monitoring-and-myocardial-function-assessment-in-primagravida-women
#6
A Doherty, A El-Khuffash, C Monteith, L McSweeney, C Breatnach, E Kent, E Tully, F Malone, P Thornton
Background.: Non-invasive cardiac output monitoring (NICOM) using bioreactance (BRT) in pregnancy is gaining interest but lacks validation. We compared simultaneous cardiac output (CO) measurements obtained using the NICOM ® (BRT-CO) and echocardiography (echo-CO), and assessed the relationship between maternal characteristics and myocardial performance. Methods.: Paired stroke volume (SV) and CO readings were obtained using NICOM ® and echocardiography, in a group of healthy nulliparous women throughout a 15 min period...
April 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28402021/validation-of-non-invasive-haemodynamic-methods-in-patients-with-liver-disease-the-finometer-and-the-task-force-monitor
#7
Jane M Brittain, Troels M Busk, Søren Møller
Patients with advanced cirrhosis often present a hyperdynamic circulation characterized by a decrease in systolic and diastolic blood pressure (SBP and DBP), and an increase in heart rate (HR) and cardiac output (CO). Accurate assessment of the altered circulation can be performed invasively; however, due to the disadvantages of this approach, non-invasive methods are warranted. The purpose of this study was to compare continuous non-invasive measurements of haemodynamic variables by the Finometer and the Task Force Monitor with simultaneous invasive measurements...
April 12, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28401152/hemodynamic-analysis-of-pediatric-septic-shock-and-cardiogenic-shock-using-transpulmonary-thermodilution
#8
En-Pei Lee, Shao-Hsuan Hsia, Jainn-Jim Lin, Oi-Wa Chan, Jung Lee, Chia-Ying Lin, Han-Ping Wu
Septic shock and cardiogenic shock are the two most common types of shock in children admitted to pediatric intensive care units (PICUs). The aim of the study was to investigate which hemodynamic variables were associated with mortality in children with shock. We retrospectively analyzed 50 children with shock (37 septic shock cases and 13 cardiogenic shock cases) in the PICU and monitored their hemodynamics using transpulmonary thermodilution from 2003 to 2016. Clinical factors were analyzed between the patients with septic and cardiogenic shock...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28398907/cardiopulmonary-monitoring-of-shock
#9
James Simmons, Corey E Ventetuolo
PURPOSE OF REVIEW: We will briefly review the classification of shock and the hallmark features of each subtype. Available modalities for monitoring shock patients will be discussed, along with evidence supporting the use, common pitfalls, and practical considerations of each method. RECENT FINDINGS: As older, invasive monitoring methods such as the pulmonary artery catheter have fallen out of favor, newer technologies for cardiac output estimation, echocardiography, and noninvasive tests such as passive leg raising have gained popularity...
April 8, 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/28394880/the-variation-of-hemodynamic-parameters-through-picco-in-the-early-stage-after-severe-burns
#10
Chen Gong, Fang Zhang, Lei Li, Fang He, Gong-Cheng Liu, Shi-Hui Zhu, Guang-Yi Wang, Zhao-Fan Xia
To investigate early hemodynamics of severely burned patients via PiCCO and to discuss clinical significance of hemodynamic monitoring for burn shock resuscitation, 55 extensive burn patients were enrolled in this retrospective study. The fluid resuscitation was guided according to Chinese General Formula and adjusted with urinary output of 0.5-1.0 ml/h/kg as a resuscitation goal. All patients were diagnosed within a relatively stable condition during burn shock stage, and they received PiCCO monitoring within 6 hours after burn...
April 3, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28393776/serial-semi-invasive-hemodynamic-assessment-following-pericardiectomy-for-chronic-constrictive-pericarditis
#11
Ujjwal Kumar Chowdhury, Poonam Malhotra Kapoor, Adil Rizvi, Vishwas Malik, Sandeep Seth, Rajiv Narang, Mani Kalaivani, Sarvesh Pal Singh, Sathiya Selvam
OBJECTIVES: This study was designed to prospectively investigate the effects of pericardiectomy via median sternotomy on intra- and postoperative hemodynamics by a new semi-invasive device (Flotrac/VigileoTM monitor) using arterial pressure waveform analysis. PATIENTS AND METHODS: Thirty consecutive patients aged 15 to 55 years (mean+SD, 31.73 + 13.53 years), who had undergone total pericardiectomy via median sternotomy underwent serial hemodynamic evaluation. FlotracTM Sensor - derived stroke volume, stroke volume variation, systemic vascular resistance index (SVRI), cardiac index and right atrial pressure were measured just before and after pericardiectomy, at 12 hours, 24 hours, 48 hours, 72 hours and at discharge postoperatively...
April 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28372651/non-invasive-cardiac-output-monitor-validation-study-in-pediatric-cardiac-surgery-patients
#12
Christopher F Tirotta, Richard G Lagueruela, Danielle Madril, Evelio Velis, Jorge Ojito, Daniel Monroe, David Aguero, Marysory Irizarry, John McBride, Robert L Hannan, Redmond P Burke
STUDY OBJECTIVE: To validate a non-invasive cardiac output monitor in pediatric cardiac surgery patients. DESIGN: Prospective trial. SETTING: Operating room. PATIENTS: 20 pediatric cardiac surgery patients ASA physical status 3 and 4. INTERVENTIONS: Aesculon noninvasive cardiac output monitor was used and compared to the cardiac output derived from the Fick equation. Oxygen consumption was measured and blood samples were taken from the arterial line and from the superior and inferior vena cava...
May 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28368936/closed-loop-feedback-computer-controlled-phenylephrine-for-maintenance-of-blood-pressure-during-spinal-anesthesia-for-cesarean-delivery-a-randomized-trial-comparing-automated-boluses-versus-infusion
#13
Warwick D Ngan Kee, Yuk-Ho Tam, Kim S Khaw, Floria F Ng, Shara W Y Lee
BACKGROUND: We previously described the use of closed-loop feedback computer-controlled infusion of phenylephrine for maintaining blood pressure (BP) during spinal anesthesia for cesarean delivery. In this study, we report a modified system in which phenylephrine is delivered by intermittent boluses rather than infusion. We hypothesized that the use of computer-controlled boluses would result in more precise control of BP compared with infusions. METHODS: Two hundred fourteen healthy patients having spinal anesthesia for elective cesarean delivery were randomized to have their systolic BP maintained by phenylephrine administered by computer-controlled continuous infusion or computer-controlled intermittent boluses...
March 31, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28342705/comparison-of-20-mannitol-and-3-hypertonic-saline-on-intracranial-pressure-and-systemic-hemodynamics
#14
Navdeep Sokhal, Girija Prasad Rath, Arvind Chaturvedi, Manmohan Singh, Hari Hara Dash
Mannitol and hypertonic saline (HS) are most commonly used hyperosmotic agents for intraoperative brain relaxation. We compared the changes in ICP and systemic hemodynamics after infusion of equiosmolar solutions of both agents in patients undergoing craniotomy for supratentorial tumors. Forty enrolled adults underwent a standard anesthetic induction. Apart from routine monitoring parameters, subdural ICP with Codmann catheter and cardiac indices by Vigileo monitor, were recorded. The patients were randomized to receive equiosmolar solutions of either 20% mannitol (5ml/kg) or 3% HS (5...
March 22, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28338595/3-0-nacl-adenosine-lidocaine-mg-2-alm-bolus-and-4-hours-drip-infusion-reduces-non-compressible-hemorrhage-by-60-in-a-rat-model
#15
Hayley L Letson, Geoffrey P Dobson
BACKGROUND: Noncompressible torso hemorrhage is the leading cause of potentially survivable trauma in far-forward combat environments. Our aim was to examine the effect of small-volume 3% NaCl adenosine, lidocaine and Mg (ALM) bolus and 0.9% NaCl/ALM 'drip' on survivability and cardiac/gut/kidney function in a rat model of hepatic hemorrhage and shock. METHODS: Male Sprague-Dawley rats (428±4 g) were anesthetized and randomly assigned to one of five groups (n=16): 1) Sham, 2) No Treatment, 3) Saline controls, 4) ALM therapy and 5) Hextend®...
March 23, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28336538/effects-of-dobutamine-on-intestinal-microvascular-blood-flow-heterogeneity-and-oxygen-extraction-during-septic-shock
#16
Gustavo Adolfo Ospina-Tascón, Alberto Federico García Marín, Gabriel J Echeverri, William Fernando Bermúdez, Humberto José Madriñán Navia, Juan David Valencia, Edgardo Quiñones, Fernando Rodríguez, Angela Marulanda, César Augusto Arango Davila, Alejandro Bruhn, Glenn Hernández, Daniel De Backer
Derangements of microvascular blood flow distribution might contribute to disturbing oxygen extraction by peripheral tissues. We evaluated the dynamic relationships between the mesenteric oxygen extraction ratio (mes-ERO2) and the heterogeneity of microvascular blood flow at the gut and sublingual mucosa, during the development and resuscitation of septic shock in a swine model of fecal peritonitis. Jejunal-villi and sublingual microcirculation were evaluated using a portable intravital-microscopy technique...
March 23, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28333321/preconception-and-early-pregnancy-maternal-haemodynamic-changes-in-healthy-women-in-relation-to-pregnancy-viability
#17
F L Foo, A Collins, C M McEniery, P R Bennett, I B Wilkinson, C C Lees
STUDY QUESTION: Are there differences in preconception cardiovascular function between women who have a viable pregnancy and those who have a first trimester miscarriage? SUMMARY ANSWER: Preconception cardiovascular function of central haemodynamics and arterial function are similar between women who have a viable pregnancy and those who have a first trimester miscarriage. WHAT IS KNOWN ALREADY: Miscarriages have been associated with increased long-term cardiovascular disease risk, and arterial and cardiovascular dysfunction has been hypothesised as the common link...
May 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28320891/the-normal-ranges-of-cardiovascular-parameters-measured-using-the-ultrasonic-cardiac-output-monitor
#18
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
#19
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)...
March 20, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/28295749/nitric-oxide-no-donors-and-haemodynamic-changes-in-fetal-growth-restriction
#20
G M Tiralongo, I Pisani, B Vasapollo, A Khalil, B Thilaganathan, H Valensise
OBJECTIVE: To evaluate maternal cardiovascular effects of nitric oxide (NO) donors in pregnancies complicated by fetal growth restriction (FGR) METHODS: 26 women with a diagnosis of FGR were treated with transdermal patches of NO donors and plasma volume expansion. We compared the treated group to a control historical FGR untreated group of patients evaluated longitudinally. We obtained haemodynamic indices using UltraSonic Cardiac Output Monitor system. RESULTS: At enrolment, the two groups were similar in terms of maternal and haemodynamic characteristics...
March 10, 2017: Ultrasound in Obstetrics & Gynecology
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