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https://www.readbyqxmd.com/read/27829710/early-norepinephrine-decreases-fluid-and-ventilatory-requirements-in-pediatric-vasodilatory-septic-shock
#1
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
#2
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...
October 6, 2016: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/27680820/h4-a-cross-comparison-study-of-nicom%C3%A2-and-transthoracic-echocardiography-in-pregnancy
#3
D Vinayagam, O Patey, B Thilaganthan, A Khalil
INTRODUCTION: There is a paucity of data regarding the accuracy, reliability and reproducibility of non-invasive cardiac output monitors in pregnancy. The aim of this study was to compare cardiac output estimations obtained by USCOM® against those obtained by 2-dimensional transthoracic echocardiography (TTE). METHODS: Prospective, observational study in which 114 healthy pregnant and postpartum women had haemodynamic indices obtained by USCOM® and TTE. Accuracy and precision statistics (Bland Altman analysis) are presented as bias, precision, 95% limits of agreement (LOA) and mean percentage difference (MPD)...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680819/h3-maternal-haedomynamics-in-hypertensive-disorders-of-pregnancy-a-case-control-study
#4
D Vinayagam, Elena Mantovani, B Thilaganthan, A Khalil
BACKGROUND: Hypertensive disorders in pregnancy (HDP) are associated with altered maternal haemodynamics, which can be investigated using non-invasive methodologies. OBJECTIVE: To assess maternal haemodynamics using USCOM 1A® in patients presenting with non-medicated, hypertensive disorders of pregnancy and normotensive controls. METHODS: A prospective, nested case-control study in 65 patients presenting with unmedicated hypertension. The control population consisted of 400 subjects who did not have a history of hypertensive disorders...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680815/g4-does-maternal-obesity-have-an-adverse-effect-on-haemodynamics
#5
D Vinayagam, Juan Gutierrez, J Binder, B Thilaganathan, A Khalil
BACKGROUND: The increase in the prevalence of and the adverse risks to both mother and foetus associated with maternal obesity is a global concern. The adverse cardiovascular risk associated with obesity is well-known, however, there is a paucity of data assessing central haemodynamics in class 3 (morbid) obesity (BMI440 kg/m(2)) during pregnancy. OBJECTIVE: To compare the haemodynamic profile in women with class 3 maternal obesity against those with a normal BMI (20-30 kg/m(2)), using ultrasound-based, non-invasive haemodynamic monitoring...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680812/g1-maternal-haemodynamics-assessment-in-preterm-delivery-two-different-haemodynamic-profiles
#6
D Farsetti, D Lo Presti, I Pisani, G M Tiralongo, G Gagliardi, B Vasapollo, G P Novelli, H Valensise
INTRODUCTION: The purpose of our study was to evaluate the maternal haemodynamic profile in women diagnosed with threatened preterm delivery (TPD) in order to understand the possible pathophysiologic mechanism leading to an increased lifetime risk for future cardiovascular disease. METHODS: Sixty-eight patients diagnosed with TPD were enrolled and assessed using a non-invasive method (USCOM®) to determine the haemodynamic parameters. Cervix length assessment, vaginal and rectal swabs, blood inflammatory indexes, foetal vessel Doppler velocimetry, gestational age at the delivery and neonatal outcomes were considered...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680810/f4-no-donors-and-haemodynamic-changes-in-fetal-growth-restriction
#7
G M Tiralongo, I Pisani, B Vasapollo, A Khalil, D Vinayagam, B Thilaganathan, H Valensise
INTRODUCTION: Pregnancies complicated by fetal growth restriction (FGR) are known to be associated with a reduced expansion of maternal intravascular space and a lower cardiac output. Therapy with nitric oxide (NO) donors, in addition to plasma volume expansion (PVE) could improve maternal haemodynamic indices and pregnancy outcome. METHODS: To evaluate maternal cardiovascular effects of NO donors. We enrolled 52 women with the diagnosis of FGR. Patients were divided into those treated with transdermal patches of NO donors and PVE or a control group...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680807/f1-is-there-a-correlation-between-total-body-water-distribution-and-haemodynamic-changes-during-pregnancy
#8
I Pisani, D Lo Presti, G M Tiralongo, G Gagliardi, D Farsetti, B Vasapollo, G P Novelli, A Andreoli, H Valensise
INTRODUCTION: During pregnancy, maternal body composition and haemodynamics undergo important changes that are of increasing interest for understanding the evolving maternal physiology. Targets: To assess and correlate changes in body composition and haemodynamic function of healthy normotensive pregnant women. To identify different populations based on TVR values, we enrolled 235 patients subjected to bioimpedance analysis and haemodynamic assessment using the USCOM system. RESULTS: We found an increase of BMI as result of an increase of all its components and a change in water distribution: ECW percentage increases while ICW decreases (see table)...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680798/d2-screening-of-preeclampsia-pe-in-the-first-trimester-high-total-vascular-resistance-tvr-with-a-reduced-fat-mass-increase-the-risk-in-normo-bmi-patients
#9
G Gagliardi, G M Tiralongo, D Lo Presti, I Pisani, D Farsetti, B Vasapollo, G P Novelli, A Andreoli, H Valensise
INTRODUCTION: Abnormalities of cardiac output, TVR and water body distribution are connected with PE and foetal growth restriction (FGR). Targets: To identify patients at risk of PE in the first trimester through USCOM system, bioimpedance and combined screening (maternal history, biophysical and biochemical markers). We enrolled 150 healthy nulliparous women with normal BMI. RESULTS: The patients were divided into two groups: Group A (TVR <1200 dynes sec cm(-5)), Group B (TVR41200 dynes sec cm(-5))...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27680791/b5-a-cross-comparison-study-of-uscom%C3%A2-and-transthoracic-echocardiography-in-pregnancy
#10
D Vinayagam, O Patey, B Thilaganthan, A Khalil
INTRODUCTION: There is a paucity of data regarding the accuracy, reliability and reproducibility of non-invasive cardiac output monitors in pregnancy. The aim of this study was to compare cardiac output estimations obtained by USCOM® against those obtained by two-dimensional transthoracic echocardiography (TTE). METHODS: Prospective, observational study in which 114 healthy pregnant and postpartum women had haemodynamic indices obtained by USCOM® and TTE. Accuracy and precision statistics (Bland Altman analysis) are presented as bias, precision, 95% limits of agreement (LOA) and mean percentage difference (MPD)...
August 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/26970353/non-invasive-cardiac-output-monitoring-in-pregnancy-comparison-to-echocardiographic-assessment
#11
D Vinayagam, O Patey, B Thilaganathan, A Khalil
OBJECTIVES: There is a paucity of data regarding the reliability of using non-invasive monitors in pregnancy. The aim of this study was to compare hemodynamic measurements obtained by non-invasive methods, against those obtained by 2-dimensional transthoracic echocardiography. METHODS: We recruited a total of 114 healthy pregnant and postpartum women who had cardiac output (CO) estimations obtained by two non-invasive devices as well as 2-D transthoracic echocardiography (TTE)...
March 11, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/26952308/preterm-delivery-and-elevated-maternal-total-vascular-resistances-a-prelude-to-the-future-maternal-cardiovascular-risk
#12
Herbert Valensise, Daniele Farsetti, Damiano Lo Presti, Ilaria Pisani, Grazia Maria Tiralongo, Giulia Gagliardi, Barbara Vasapollo, Gian Paolo Novelli
AIM: The purpose of our study was to evaluate the maternal hemodynamic profile in women with diagnosis of threatened preterm delivery (TPD) in order to understand the possible pathophysiologic mechanism leading to an increased lifetime risk for future cardiovascular disease. METHODS: 68 patients with diagnosis of TPD were enrolled and assessed through non-invasive method (USCOM(®) ) for the determination of hemodynamic parameters. Cervix length assessment, vaginal and rectal swabs, blood inflammatory indexes, foetal vessel Doppler velocimetry, gestational age at the time of delivery and neonatal outcomes were also considered...
March 8, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/26873749/the-effect-of-head-up-tilting-on-bioreactance-cardiac-output-and-stroke-volume-readings-using-suprasternal-transcutaneous-doppler-as-a-control-in-healthy-young-adults
#13
Jie Zhang, Lester A H Critchley, Daniel C W Lee, Kim S Khaw, Shara W Y Lee
To compare the performance of a bioreactance cardiac output (CO) monitor (NICOM) and transcutaneous Doppler (USCOM) during head up tilting (HUT). Healthy young adult subjects, age 22 ± 1 years, 7 male and 7 female, were tilted over 3-5 s from supine to 70° HUT, 30° HUT and back to supine. Positions were held for 3 min. Simultaneous readings of NICOM and USCOM were performed 30 s into each new position. Mean blood pressure (MBP), heart rate (HR), CO and stroke volume (SV), and thoracic fluid content (TFC) were recorded...
October 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/26710947/-risk-analysis-of-cardiovascular-events-in-elderly-hypertensive-patients-with-different-risk-stratification-during-the-perioperative-period
#14
Jiru Zhang, Zhiqiang Wang, Yong Ji, Hongdi Qian, Nan Dong
OBJECTIVE: To study the risks of cardiovascular events of elderly hypertensive patients with different risk stratification during the perioperative period. METHODS: 126 elderly hypertensive patients without cardiac surgery were selected and divided into following 3 groups: group I (in danger), group II (high-risk), group III (very high-risk), each group with 42 cases. Control group was randomly selected 42 elderly patients without hypertension and other cardiovascular risk factors...
July 28, 2015: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/26569778/117-validation-of-uscom-bp-in-children-and-adolescents-a-preliminary-report
#15
Bedangshu Saikia, Graham Derrick, Tony Fordham, Joe Brierley
No abstract text is available yet for this article.
December 2015: Critical Care Medicine
https://www.readbyqxmd.com/read/26553908/the-effects-of-malnutrition-on-cardiac-function-in-african-children
#16
Jonathan A Silverman, Yamikani Chimalizeni, Stephen E Hawes, Elizabeth R Wolf, Maneesh Batra, Harriet Khofi, Elizabeth M Molyneux
OBJECTIVE: Cardiac dysfunction may contribute to high mortality in severely malnourished children. Our objective was to assess the effect of malnutrition on cardiac function in hospitalised African children. DESIGN: Prospective cross-sectional study. SETTING: Public referral hospital in Blantyre, Malawi. PATIENTS: We enrolled 272 stable, hospitalised children ages 6-59 months, with and without WHO-defined severe acute malnutrition...
February 2016: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/26364291/validation-of-an-ultrasound-cardiac-output-monitor-as-a-bedside-tool-for-pediatric-patients
#17
Fernando Beltramo, Jondavid Menteer, Asma Razavi, Robinder G Khemani, Jacqueline Szmuszkovicz, Christopher J L Newth, Patrick A Ross
The aim of our study was to determine the validity of cardiac output (CO) measurements taken with the ultrasonic cardiac output monitor (USCOM) by comparing to CO measured by pulmonary arterial catheter (PAC) thermodilution during cardiac catheterization. We enrolled thirty-one children (<18 years) undergoing cardiac catheterization in this double-blinded, prospective, observational study. The median CO measured by USCOM was 4.37 L/min (IQR 3.73, 5.60 L/min) compared to 4.28 L/min (IQR 3.52, 5.26 L/min) by PAC thermodilution...
January 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/26333691/foetal-heart-rate-deceleration-with-combined-spinal-epidural-analgesia-during-labour-a-maternal-haemodynamic-cardiac-study
#18
Herbert Valensise, Damiano Lo Presti, Grazia Maria Tiralongo, Ilaria Pisani, Giulia Gagliardi, Barbara Vasapollo, Maria Grazia Frigo
To understand the mechanisms those are involved in the appearance of foetal heart rate decelerations (FHR) after the combined epidural analgesia in labour. Observational study done at University Hospital for 86-term singleton pregnant women with spontaneous labour. Serial bedside measurement of the main cardiac maternal parameters with USCOM technique; stroke volume (SV), heart rate (HR), cardiac output (CO) and total vascular resistances (TVR) inputting systolic and diastolic blood pressure before combined epidural analgesia and after 5', 10', 15' and 20 min...
2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/26315476/does-using-two-doppler-cardiac-output-monitors-in-tandem-provide-a-reliable-trend-line-of-changes-for-validation-studies
#19
Huang Li, Lester A H Critchley, Jie Zhang
The demise of the pulmonary artery catheter as a gold standard in cardiac output measurement has created the need for new standard. Doppler cardiac output can be measured suprasternally (USCOM) and via the oesophagus (CardioQ). Use in tandem they may provide a reliable trend line of cardiac output changes against which new technologies can be assessed. Data from three similar clinical studies was pooled. Simultaneous USCOM and CardioQ readings, 13 (7-27), were performed every 15-30 min intraoperatively. Within individual patient regression analysis was performed...
October 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/26243646/five-algorithms-that-calculate-cardiac-output-from-the-arterial-waveform-a-comparison-with-doppler-ultrasound
#20
COMPARATIVE STUDY
J Zhang, L A H Critchley, L Huang
BACKGROUND: Different mathematical approaches are used to calculate arterial pulse pressure wave analysis (PPWA) cardiac output. The CardioQ-Combi is a research oesophageal Doppler (COODM) monitor that includes these five fundamental PPWA algorithms. We compared these PPWA cardiac output readings to COODM and suprasternal USCOM Doppler (COUS) over a range of cardiac output values induced by dopamine infusion in patients undergoing major surgery. USCOM acted as a control. METHODS: Serial sets of cardiac output data were recorded at regular intervals as cardiac output increased...
September 2015: British Journal of Anaesthesia
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