keyword
MENU ▼
Read by QxMD icon Read
search

Cardiac output monitor

keyword
https://www.readbyqxmd.com/read/28747363/changes-in-cardiac-output-and-cerebral-oxygenation-during-prone-and-supine-sleep-positioning-in-healthy-term-infants
#1
Tai-Wei Wu, Rey-In Lien, Istvan Seri, Shahab Noori
OBJECTIVE: To investigate the changes in systemic and cerebral haemodynamics between supine and prone sleep in healthy term infants during the early postnatal period. DESIGN/METHODS: Healthy term infants without congenital anomalies, patent ductus arteriosus and/or small for gestational age status were enrolled. Infants were placed in supine (SP1), prone (PP) and back in supine (SP2) position for 15 min each while asleep. Cardiac output (CO) and stroke volume (SV) were assessed by electrical velocimetry (EV) and echocardiography (echo), and cerebral regional oxygen saturation (CrSO2) in the frontal lobes was monitored by near-infrared spectroscopy...
July 26, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28746233/preoperative-thromboelastometry-for-the-prediction-of-increased-chest-tube-output-in-cardiac-surgery-a-retrospective-study
#2
Waldemar Gozdzik, Barbara Adamik, Grzegorz Wysoczanski, Anna Gozdzik, Maciej Rachwalik, Tomasz Skalec, Andrzej Kübler
Bleeding following cardiac surgery is a serious event with potentially life-threatening consequences. Preoperative recognition of coagulation abnormalities and detection of cardiopulmonary bypass (CPB) related coagulopathy could aid in the start of preventive treatment strategies that minimize perioperative blood loss. Most algorithms that analyze thromboelastometry coagulation tests in elective cardiac surgery do not include test results performed before surgery. We evaluated preoperative rotational thromboelastometry test results for their ability to predict blood loss during and after cardiac surgery...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28733057/clinical-validation-of-non-invasive-cardiac-output-monitoring-in-healthy-pregnant-women
#3
Kelsey McLaughlin, Stephen P Wright, John C P Kingdom, John D Parker
OBJECTIVE: Non-invasive hemodynamic monitoring has the potential to be a valuable clinical tool for the screening and management of hypertensive disorders of pregnancy. The objective of this study was to validate the clinical utility of the non-invasive cardiac output monitoring (NICOM) system in pregnant women. METHODS: Twenty healthy pregnant women with a singleton pregnancy at 22 to 26 weeks' gestation were enrolled in this study. Measures of heart rate, stroke volume, and cardiac output were obtained through NICOM and compared with Doppler echocardiography...
July 18, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28731900/micro-and-macro-circulatory-changes-during-sepsis-and-septic-shock-in-a-rat-model
#4
Tianfeng Hua, Xiaobo Wu, Wei Wang, Hao Li, Jennifer Bradley, Mary Ann Peberdy, Joseph P Ornato, Wanchun Tang
Microcirculation is the motor of sepsis. In the present study, we investigated whether microcirculatory alterations occur prior to changes of systemic hemodynamics in a rat model of cecum ligation and puncture (CLP)-induced sepsis. We further investigated renal microcirculatory changes during sepsis and compared those with buccal microcirculation. Twelve male Sprague-Dawley rats were randomized into a sham control group (n = 6) and a CLP group (n = 6). Perfused microvessel density (PVD) and microvascular flow index (MFI) were evaluated using sidestream dark field (SDF) video microscopy at baseline, 60, 120, 180, 240, 300, and 360 minutes following CLP...
July 20, 2017: Shock
https://www.readbyqxmd.com/read/28719470/diurnal-variation-and-repeatability-of-arterial-stiffness-and-cardiac-output-measurements-in-the-third-trimester-of-uncomplicated-pregnancy
#5
Mohamed W Osman, Francesca Leone, Mintu Nath, Asma Khalil, David R Webb, Thompson G Robinson, Hatem A Mousa
AIM: To investigate same day repeated measures and diurnal variation of arterial stiffness, cardiac output (CO), stroke volume (SV) and total peripheral resistance (TPR) during the third trimester of normal pregnancy. METHODOLOGY: Pulse wave velocity (PWV) and augmentation index (AIx) were recorded using the Arteriograph, while CO, SV and TPR were recorded using noninvasive cardiac output monitoring. The measurements were obtained in the third trimester of pregnancy from 21 healthy pregnant women at four time points (morning, afternoon, evening and midnight) over a 24-h period...
July 14, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28719069/inaccuracy-of-a-continuous-arterial-pressure-waveform-monitor-when-used-for-congenital-cardiac-catheterization
#6
Michael D Seckeler, Katri Typpo, Jendar Deschenes, Ruth Higgins, Ricardo Samson, Peter Lichtenthal
OBJECTIVE: To determine the accuracy of a continuous cardiac output monitor (FloTrac sensor) for measuring cardiac index in children with congenital heart disease undergoing cardiac catheterization. Cardiac index is a critical hemodynamic parameter measured during catheterizations in children with congenital heart disease. This has been challenging to measure accurately and many clinicians rely on predictive equations for calculating cardiac index. DESIGN: Prospective, nonrandomized trial...
July 18, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28709156/gastrointestinal-impedance-spectroscopy-to-detect-hypoperfusion-during-hemorrhage
#7
Andreas Bloch, Andreas Kohler, Horst Posthaus, David Berger, Laura Santos, Stephan Jakob, Jukka Takala, Matthias Haenggi
BACKGROUND: Changes in tissue impedance (Ω) have been proposed as early signs of impaired tissue perfusion. We hypothesized that hemorrhage may induce early changes in alimentary tract tissue impedance and that these can be detected by impedance spectroscopy. We evaluated impedance spectroscopy in an acute hemorrhage model in pigs. METHODS: Twenty anesthetized pigs were randomized to stepwise hemorrhage to mean arterial blood pressure (MAP) targets of 60 mm Hg, 50 mm Hg, 45 mm Hg, and 40 mm Hg, followed by retransfusion in two steps, or control (n = 10 each)...
August 2017: Shock
https://www.readbyqxmd.com/read/28708664/esmolol-administration-to-control-tachycardia-in-an-ovine-model-of-peritonitis
#8
Koji Hosokawa, Fuhong Su, Fabio Silvio Taccone, Emiel Hendrik Post, Adriano José Pereira, Antoine Herpain, Jacques Creteur, Jean-Louis Vincent
BACKGROUND: Excessive adrenergic signaling may be harmful in sepsis. Using β-blockers to reduce sympathetic overactivity may modulate sepsis-induced cardiovascular, metabolic, immunologic, and coagulation alterations. Using a randomized ovine fecal peritonitis model, we investigated whether administration of a short-acting β-blocker, esmolol, could control tachycardia without deleterious effects on hemodynamics, renal perfusion, cerebral perfusion, cerebral metabolism, or outcome. METHODS: After induction of fecal peritonitis, 14 anesthetized, mechanically ventilated, and hemodynamically monitored adult female sheep were randomly assigned to receive a continuous intravenous infusion of esmolol to control heart rate between 80 and 100 bpm (n = 7) or a saline infusion (control group, n = 7)...
July 13, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28707021/the-response-to-trendelenburg-position-is-minimally-affected-by-underlying-hemodynamic-conditions-in-patients-with-aortic-stenosis
#9
Abraham Sonny, Daniel I Sessler, Jing You, Babak Kateby Kashy, Sheryar Sarwar, Akhil K Singh, Shiva Sale, Andrej Alfirevic, Andra E Duncan
PURPOSE: Trendelenburg positioning is commonly used to temporarily treat intraoperative hypotension. The Trendelenburg position improves cardiac output in normovolemic or anesthetized patients, but not hypovolemic or non-anesthetized patients. Therefore, the response to Trendelenburg positioning may vary depending on patient population or hemodynamic conditions. We thus tested the hypothesis that the effectiveness of the Trendelenburg position, as indicated by an increase in cardiac output, improves after replacement of a stenotic aortic valve...
July 13, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28704819/electrical-cardiometry-to-monitor-cardiac-output-in-preterm-infants-with-patent-ductus-arteriosus-a-comparison-with-echocardiography
#10
Kai-Hsiang Hsu, Tai-Wei Wu, I-Hsyuan Wu, Mei-Yin Lai, Shih-Yun Hsu, Hsiao-Wen Huang, Tze-Yee Mok, Reyin Lien
BACKGROUND: Electrical cardiometry (EC) is an impedance-based monitoring that provides noninvasive cardiac output (CO) assessment. Through comparison to transthoracic echocardiography (Echo), the accuracy of EC has been verified. However, left-to-right patent ductus arteriosus (PDA) shunting is a concern because PDA shunts aortic flow to the pulmonary artery and may interfere with EC in measuring CO. OBJECTIVE: To determine the agreement between EC and Echo in preterm infants with a hemodynamically significant PDA (hsPDA)...
July 14, 2017: Neonatology
https://www.readbyqxmd.com/read/28698881/assessment-of-haemodynamic-response-to-nonselective-beta-blockers-in-portal-hypertension-by-phase-contrast-magnetic-resonance-angiography
#11
Natasha McDonald, David M L Lilburn, Neil J Lachlan, Gillian Macnaught, Dilip Patel, Arjun N A Jayaswal, Peter C Hayes, Scott I Semple, Jonathan A Fallowfield
A significant unmet need exists for accurate, reproducible, noninvasive diagnostic tools to assess and monitor portal hypertension (PHT). We report the first use of quantitative MRI markers for the haemodynamic assessment of nonselective beta-blockers (NSBB) in PHT. In a randomized parallel feasibility study in 22 adult patients with PHT and a clinical indication for NSBB, we acquired haemodynamic data at baseline and after 4 weeks of NSBB (propranolol or carvedilol) using phase-contrast MR angiography (PC-MRA) in selected intra-abdominal vessels...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28694568/the-role-of-routine-measurement-of-intra-abdominal-pressure-in-preventing-abdominal-compartment-syndrome
#12
G Raghavendra Prasad, J V Subba Rao, Amtul Aziz, T M Rashmi
INTRODUCTION: Abdomen, a closed compartment, is prone to raised intra-abdominal pressure (IAP) in the postoperative period. After a critical value of ≥ 15 cm of water, IAP produces abdominal compartment syndrome (ACS). ACS leads to reduced venous return, reduced cardiac output, and domino effect of organ dysfunction, leading to death. Hence, it is the need of hour to monitor IAP to pick up intra-abdominal hypertension (IAH) and ACS. This routine facilitates early institution of treatment measures...
July 2017: Journal of Indian Association of Pediatric Surgeons
https://www.readbyqxmd.com/read/28692337/a-multidisciplinary-perioperative-strategy-for-attaining-more-physiologic-cardiac-surgery
#13
Kyriakos Anastasiadis, Polychronis Antonitsis, Apostolos Deliopoulos, Helena Argiriadou
BACKGROUND: Cardiac surgery is, by definition, a "non-physiologic" intervention associated with systemic adverse effects. Despite advances in surgical technique, cardiopulmonary bypass (CPB) technology as well as anaesthesia management and patient care, there is still significant morbidity and subsequent mortality. AIM: We consider that the contemporary demand for further improving patient outcome mandates the upgrade from optimal perfusion during the procedure as the gold standard to the concept of a "more physiologic" cardiac surgery...
March 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28685426/effects-of-8-weeks-training-on-systemic-and-muscle-oxygen-dynamics-in-university-rugby-players
#14
Shun Takagi, Ryotaro Kime, Masatsugu Niwayama, Kuniaki Hirayama, Shizuo Sakamoto
The aim of this study was to investigate the effects of 8 weeks of training on O2 dynamics in university rugby players. University rugby players (n = 15) participated in 5 strength training sessions and 4 field-based training sessions per week for 8 weeks. Before and after 8-weeks' training, the subjects performed ramp cycling exercise until exhaustion. Muscle O2 saturation (SmO2), relative changes from rest in deoxygenated hemoglobin concentration (∆Deoxy-Hb) and total hemoglobin concentration, cardiac output (CO), and pulmonary O2 uptake (VO2) were monitored continuously during exercise...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28682837/closed-loop-and-decision-assist-guided-fluid-therapy-of-human-hemorrhage
#15
Gabriel Hundeshagen, George C Kramer, Nicole Ribeiro Marques, Michael G Salter, Aristides K Koutrouvelis, Husong Li, Daneshvari R Solanki, Alexander Indrikovs, Roger Seeton, Sheryl N Henkel, Michael P Kinsky
OBJECTIVES: We sought to evaluate the efficacy, efficiency, and physiologic consequences of automated, endpoint-directed resuscitation systems and compare them to formula-based bolus resuscitation. DESIGN: Experimental human hemorrhage and resuscitation. SETTING: Clinical Research Laboratory. SUBJECTS: Healthy volunteers. INTERVENTIONS: Subjects (n = 7) were subjected to hemorrhage and underwent a randomized fluid resuscitation scheme on separate visits 1) formula-based bolus resuscitation; 2) semiautonomous (decision assist) fluid administration; and 3) fully autonomous (closed loop) resuscitation...
July 4, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28669704/low-pressure-robot-assisted-radical-prostatectomy-with-the-airseal-system-at-olv-hospital-results-from-a-prospective-study
#16
Sabrina La Falce, Giacomo Novara, Giorgio Gandaglia, Paolo Umari, Geert De Naeyer, Frederiek D'Hondt, Jean Beresian, Rik Carette, Martin Penicka, Yujiing Mo, Geert Vandenbroucke, Alexandre Mottrie
BACKGROUND: Limited studies examined effects of pneumoperiotneum during robot-assisted radical prostatectomy (RARP) and with AirSeal. The aim of this study was to assess the effect on hemodynamics of a lower pressure pneumoperitoneum (8 mmHg) with AirSeal, during RARP in steep Trendelenburg 45° (ST). MATERIALS AND METHODS: This is an institutional review board-approved, prospective, interventional, single-center study including patients treated with RARP at OLV Hospital by one extremely experienced surgeon (July 2015-February 2016)...
June 2, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28665923/non-invasive-continuous-cardiac-output-and-cerebral-perfusion-monitoring-in-term-infants-with-neonatal-encephalopathy-assessment-of-feasibility-and-reliability
#17
Eva Forman, Colm R Breatnach, Stephanie Ryan, Jana Semberova, Jan Miletin, Adrienne Foran, Afif El-Khuffash
BACKGROUND: None invasive hemodynamic monitoring of infants with neonatal encephalopathy (NE) undergoing therapeutic hypothermia (TH) would be a potentially useful clinical tool. We aimed assess the feasibility and reliability of non-invasive cardiac output monitoring (NICOM) and near infrared spectroscopy (NIRS) in this cohort. METHODS: NICOM and NIRS were commenced to measure cardiac output (CO), systemic vascular resistance (SVR), blood pressure (BP), and cerebral regional oxygen saturations (SctO2) during TH and rewarming...
June 30, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28648415/non-invasive-cardiac-output-monitoring-to-be-or-not-to-be-that-is-the-question
#18
EDITORIAL
Abhishek Gupta, Sundeep Mishra
Role of hemodynamic monitoring in critically ill patients is still controversial. While invasive monitoring is accurate, it may be counter-productive in view of its essentially invasive nature. Non-invasive monitoring is less intrusive but has not yet been well validated for accuracy compared with gold standard of invasive monitoring.
May 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28640019/mini-fluid-challenge-of-100-ml-of-crystalloid-predicts-fluid-responsiveness-in-the-operating-room
#19
Matthieu Biais, Hugues de Courson, Romain Lanchon, Bruno Pereira, Guillaume Bardonneau, Marion Griton, Musa Sesay, Karine Nouette-Gaulain
BACKGROUND: Mini-fluid challenge of 100 ml colloids is thought to predict the effects of larger amounts of fluid (500 ml) in intensive care units. This study sought to determine whether a low quantity of crystalloid (50 and 100 ml) could predict the effects of 250 ml crystalloid in mechanically ventilated patients in the operating room. METHODS: A total of 44 mechanically ventilated patients undergoing neurosurgery were included. Volume expansion (250 ml saline 0...
June 21, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28639172/influence-of-cannulation-site-on-carotid-perfusion-during-extracorporeal-membrane-oxygenation-in-a-compliant-human-aortic-model
#20
Andreas Geier, Andreas Kunert, Günter Albrecht, Andreas Liebold, Markus Hoenicka
Blood oxygenized by veno-arterial extracorporeal membrane oxygenation (ECMO) can be returned to the aorta (central cannulation) or to peripheral arteries (axillar, femoral). Hemodynamic effects of these cannulation types were analyzed in a mock loop with an aortic model representative of normal anatomy and compliance under physiological pressures and flow rates. Pressures, flow rates, and contribution of ECMO flow to total flow as a measure of oxygen supply were monitored in the carotids. Steady or pulsatile ECMO flow, residual or no cardiac output, and intraaortic balloon pump counterpulsation were tested as independent factors...
June 21, 2017: Annals of Biomedical Engineering
keyword
keyword
9682
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"