keyword
MENU ▼
Read by QxMD icon Read
search

Non-invasive cardiac monitoring

keyword
https://www.readbyqxmd.com/read/29764550/-predictive-value-of-central-venous-to-arterial-carbon-dioxide-partial-pressure-difference-for-fluid-responsiveness-in-septic-shock-patients-a-prospective-clinical-study
#1
Guangyun Liu, Huibin Huang, Hanyu Qin, Bin Du
OBJECTIVE: To evaluate the accuracy of central venous-to-arterial carbon dioxide partial pressure difference (Pcv-aCO2 ) before and after rapid rehydration test (fluid challenge) in predicting the fluid responsiveness in patients with septic shock. METHODS: A prospective observation was conducted. Forty septic shock patients admitted to medical intensive care unit (ICU) of Peking Union Medical College Hospital from October 2015 to June 2017 were enrolled. All of the patients received fluid challenge in the presence of invasive hemodynamic monitoring...
May 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29756691/cerebrovascular-autoregulation-impairments-during-cardiac-surgery-with-cardiopulmonary-bypass-are-related-to-postoperative-cognitive-deterioration-prospective-observational-study
#2
Birute Kumpaitiene, Milda Svagzdiene, Edmundas Sirvinskas, Virginija Adomaitiene, Vytautas Petkus, Rolandas Zakelis, Solventa Krakauskaite, Romanas Chomskis, Arminas Ragauskas, Teodoro F Dagi, Rimantas Benetis
BACKGROUND: Post-operative cognitive dysfunction (POCD) occurs in approximately 33-83% of patients after cardiac surgery with cardiopulmonary bypass (CPB). Recent clinical data suggest that real-time, intraoperative monitoring of patient- specific cerebrovascular autoregulation (CA) may help to prevent POCD by detecting individual critical limits for mean arterial pressure (MAP) outside which CA is impaired. Objectives of the study were to detect the episodes of impaired CA during cardiac surgery with CPB, and to investigate the association between CA impairment and POCD...
May 11, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29746721/melatonin-for-the-promotion-of-sleep-in-adults-in-the-intensive-care-unit
#3
REVIEW
Sharon R Lewis, Michael W Pritchard, Oliver J Schofield-Robinson, Phil Alderson, Andrew F Smith
BACKGROUND: Patients in the intensive care unit (ICU) experience sleep deprivation caused by environmental disruption, such as high noise levels and 24-hour lighting, as well as increased patient care activities and invasive monitoring as part of their care. Sleep deprivation affects physical and psychological health, and patients perceive the quality of their sleep to be poor whilst in the ICU. Artificial lighting during night-time hours in the ICU may contribute to reduced production of melatonin in critically ill patients...
May 10, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29745497/-research-on-prediction-method-of-left-ventricular-blood-pressure-based-on-external-heart-sounds
#4
Jinghui Zhang, Hong Tang
The continuous left ventricle blood pressure prediction based on selected heart sound features was realized in this study. The experiments were carried out on three beagle dogs and the variations of cardiac hemodynamics were induced by various dose of epinephrine. The phonocardiogram, electrocardiogram and blood pressures in left ventricle were synchronously acquired. We obtained 28 valid recordings in this study. An artificial neural network was trained with the selected feature to predict left ventricular blood pressure and this trained network made a good performance...
June 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29744562/mussel-inspired-3d-fiber-scaffolds-for-heart-on-a-chip-toxicity-studies-of-engineered-nanomaterials
#5
Seungkuk Ahn, Herdeline Ann M Ardoña, Johan U Lind, Feyisayo Eweje, Sean L Kim, Grant M Gonzalez, Qihan Liu, John F Zimmerman, Georgios Pyrgiotakis, Zhenyuan Zhang, Juan Beltran-Huarac, Paul Carpinone, Brij M Moudgil, Philip Demokritou, Kevin Kit Parker
Due to the unique physicochemical properties exhibited by materials with nanoscale dimensions, there is currently a continuous increase in the number of engineered nanomaterials (ENMs) used in consumer goods. However, several reports associate ENM exposure to negative health outcomes such as cardiovascular diseases. Therefore, understanding the pathological consequences of ENM exposure represents an important challenge, requiring model systems that can provide mechanistic insights across different levels of ENM-based toxicity...
May 10, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29734702/a-cardiac-cell-outgrowth-assay-for-evaluating-drug-compounds-using-a-cardiac-spheroid-on-a-chip-device
#6
Jonas Christoffersson, Florian Meier, Henning Kempf, Kristin Schwanke, Michelle Coffee, Mario Beilmann, Robert Zweigerdt, Carl-Fredrik Mandenius
Three-dimensional (3D) models with cells arranged in clusters or spheroids have emerged as valuable tools to improve physiological relevance in drug screening. One of the challenges with cells cultured in 3D, especially for high-throughput applications, is to quickly and non-invasively assess the cellular state in vitro. In this article, we show that the number of cells growing out from human induced pluripotent stem cell (hiPSC)-derived cardiac spheroids can be quantified to serve as an indicator of a drug’s effect on spheroids captured in a microfluidic device...
May 4, 2018: Bioengineering
https://www.readbyqxmd.com/read/29731407/cardiovascular-disease-and-use-of-contemporary-protease-inhibitors-the-d-a-d-international-prospective-multicohort-study
#7
Lene Ryom, Jens D Lundgren, Wafaa El-Sadr, Peter Reiss, Ole Kirk, Matthew Law, Andrew Phillips, Rainer Weber, Eric Fontas, Antonella d' Arminio Monforte, Stéphane De Wit, Francois Dabis, Camilla I Hatleberg, Caroline Sabin, Amanda Mocroft
BACKGROUND: Although earlier protease inhibitors have been associated with increased risk of cardiovascular disease, whether this increased risk also applies to more contemporary protease inhibitors is unknown. We aimed to assess whether cumulative use of ritonavir-boosted atazanavir and ritonavir-boosted darunavir were associated with increased incidence of cardiovascular disease in people living with HIV. METHODS: The prospective Data Collection on Adverse Events of Anti-HIV Drugs (D:A:D) study consists of people living with HIV-1 from 11 cohorts in Australia, Europe, and the USA...
May 3, 2018: Lancet HIV
https://www.readbyqxmd.com/read/29728410/what-is-the-normal-haemodynamic-response-to-passive-leg-raise-a-study-of-healthy-volunteers
#8
Mohammed H Elwan, Ashraf Roshdy, Joseph A Reynolds, Eman M Elsharkawy, Salah M Eltahan, Timothy J Coats
OBJECTIVE: Passive leg raise (PLR) is used as self-fluid challenge to optimise fluid therapy by predicting preload responsiveness. However, there remains uncertainty around the normal haemodynamic response to PLR with resulting difficulties in application and interpretation in emergency care. We aim to define the haemodynamic responses to PLR in spontaneously breathing volunteers using a non-invasive cardiac output monitor, thoracic electrical bioimpedance, TEB (PLR-TEB). METHODS: We recruited healthy volunteers aged 18 or above...
May 4, 2018: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/29726838/estimating-regions-of-air-trapping-from-electrical-impedance-tomography-data
#9
Jennifer L Mueller, Peter A Muller, Michelle Mellenthin, Rashmi Murthy, Michael Capps, Melody Alsaker, Robin Deterding, Scott D Sagel, Emily DeBoer
OBJECTIVE: Electrical impedance tomography (EIT) has been shown as a viable non-invasive, bedside imaging modality to monitor lung function.This paper introduces a method for identifying regions of air trapping from EIT data collected during tidal breathing and breath-holding maneuvers. APPROACH: Ventilation-perfusion index maps are computed from dynamic EIT images. These maps are then used to identify regions of air trapping in the area of the lung as regions that are poorly ventilated but well perfused throughout the breathing and cardiac cycles...
May 4, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29695645/non-invasive-measurement-of-cardiac-output-in-children-with-repaired-coarctation-of-the-aorta-using-electrical-cardiometry-compared-to-transthoracic-doppler-echocardiography
#10
Luis Altamirano-Diaz, Eva Welisch, Adam A Dempsey, Teresa Sohee Park, Michael Grattan, Kambiz Norozi
Objective
 To evaluate the equivalence of the ICON® electrical cardiometry (EC) haemodynamic monitor to measure cardiac output (CO) relative to transthoracic Doppler echocardiography (TTE) in paediatric patients with repaired coarctation of the aorta (CoA). 
 
 Approach
 A group of n=28 CoA patients and n=27 matched controls were enrolled. EC and TTE were performed synchronously on each participant and CO measurements compared using linear regression and Bland-Altman analysis...
April 26, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29691397/non-invasive-detection-of-human-cardiomyocyte-death-using-methylation-patterns-of-circulating-dna
#11
Hai Zemmour, David Planer, Judith Magenheim, Joshua Moss, Daniel Neiman, Dan Gilon, Amit Korach, Benjamin Glaser, Ruth Shemer, Giora Landesberg, Yuval Dor
Detection of cardiomyocyte death is crucial for the diagnosis and treatment of heart disease. Here we use comparative methylome analysis to identify genomic loci that are unmethylated specifically in cardiomyocytes, and develop these as biomarkers to quantify cardiomyocyte DNA in circulating cell-free DNA (cfDNA) derived from dying cells. Plasma of healthy individuals contains essentially no cardiomyocyte cfDNA, consistent with minimal cardiac turnover. Patients with acute ST-elevation myocardial infarction show a robust cardiac cfDNA signal that correlates with levels of troponin and creatine phosphokinase (CPK), including the expected elevation-decay dynamics following coronary angioplasty...
April 24, 2018: Nature Communications
https://www.readbyqxmd.com/read/29682908/tracking-disease-progression-non-invasively-in-duchenne-and-becker-muscular-dystrophies
#12
Pietro Spitali, Kristina Hettne, Roula Tsonaka, Mohammed Charrout, Janneke van den Bergen, Zaïda Koeks, Hermien E Kan, Melissa T Hooijmans, Andreas Roos, Volker Straub, Francesco Muntoni, Cristina Al-Khalili-Szigyarto, Marleen J A Koel-Simmelink, Charlotte E Teunissen, Hanns Lochmüller, Erik H Niks, Annemieke Aartsma-Rus
BACKGROUND: Analysis of muscle biopsies allowed to characterize the pathophysiological changes of Duchenne and Becker muscular dystrophies (D/BMD) leading to the clinical phenotype. Muscle tissue is often investigated during interventional dose finding studies to show in situ proof of concept and pharmacodynamics effect of the tested drug. Less invasive readouts are needed to objectively monitor patients' health status, muscle quality, and response to treatment. The identification of serum biomarkers correlating with clinical function and able to anticipate functional scales is particularly needed for personalized patient management and to support drug development programs...
April 16, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29676835/heart-rate-variability-parameters-in-children-with-ventricular-preexcitation
#13
Serhat Koca, Feyza Aysenur Pac, Ajda Mihcioglu, Deniz Eris, Serkan Cay, Ozcan Ozeke
INTRODUCTION: The autonomic nervous system has a regulatory effect on cardiac electrophysiology and arrhythmogenesis. We aimed to assess cardiac autonomic status using heart rate variability (HRV) parameters in children with ventricular preexcitation. METHODS: The electrocardiography, Holter monitoring, transesophageal electrophysiological study (TEEPS) and invasive electrophysiological study (EPS) results of ventricular preexcitation patients obtained over a 7-year period in our clinic were evaluated...
April 20, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29675322/reflective-lens-free-imaging-on-high-density-silicon-microelectrode-arrays-for-monitoring-and-evaluation-of-in-vitro-cardiac-contractility
#14
Thomas Pauwelyn, Richard Stahl, Lakyn Mayo, Xuan Zheng, Andy Lambrechts, Stefan Janssens, Liesbet Lagae, Veerle Reumers, Dries Braeken
The high rate of drug attrition caused by cardiotoxicity is a major challenge for drug development. Here, we developed a reflective lens-free imaging (RLFI) approach to non-invasively record in vitro cell deformation in cardiac monolayers with high temporal (169 fps) and non-reconstructed spatial resolution (352 µm) over a field-of-view of maximally 57 mm2 . The method is compatible with opaque surfaces and silicon-based devices. Further, we demonstrated that the system can detect the impairment of both contractility and fast excitation waves in cardiac monolayers...
April 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/29652902/relations-between-right-ventricular-morphology-and-clinical-electrical-and-genetic-parameters-in-brugada-syndrome
#15
Belinda Gray, Ganesh Kumar Gnanappa, Richard D Bagnall, Giuseppe Femia, Laura Yeates, Jodie Ingles, Charlotte Burns, Rajesh Puranik, Stuart M Grieve, Christopher Semsarian, Raymond W Sy
BACKGROUND: Increasing evidence suggests the presence of structural changes affecting the right ventricular outflow tract (RVOT) in patients with Brugada Syndrome (BrS). The aim of this study was to characterise the RV morphology in BrS and explore associations between morphologic, clinical, electrical, and genetic parameters using non-invasive multimodality testing. METHODS: Consecutive BrS patients (recruited 2013-2015) underwent clinical assessment, dedicated RV imaging using cardiac magnetic resonance (CMR) imaging (unless contra-indicated), electrical assessment (electrocardiogram, Holter monitoring, signal-averaged ECG[SAECG]) and genotyping...
2018: PloS One
https://www.readbyqxmd.com/read/29623382/-the-heart-catheter-table-is-not-the-operating-table-intraindividual-comparison-of-pulmonary-artery-pressures
#16
M U Ziegler, H Reinelt
BACKGROUND: Patients undergoing cardiac surgery need extensive and invasive monitoring, which needs to be individually adapted for each patient and requires a diligent risk-benefit analysis. The use of a pulmonary artery catheter (PAC) seems to be justifiable in certain cases; therefore, the preoperative diagnosis of pulmonary hypertension represents an indication for perioperative monitoring with PAC in the S3 guidelines of the German Society for Anesthesiology and Intensive Care Medicine (DGAI)...
April 5, 2018: Der Anaesthesist
https://www.readbyqxmd.com/read/29607557/maternal-hemodynamics-fetal-biometry-and-dopplers-in-pregnancies-followed-up-for-suspected-fetal-growth-restriction
#17
Llinos A Roberts, Hua Zen Ling, Liona Poon, Kypros H Nicolaides, Nikos A Kametas
OBJECTIVES: To assess whether in a cohort of patients with small for gestational age (SGA) foetuses with estimated fetal weight ≤10th percentile, maternal hemodynamics, fetal biometry and Dopplers at presentation, can predict the subsequent development of abnormal fetal Dopplers or delivery with birthweight <3rd percentile. METHODS: The study population comprised of 86 singleton pregnancies with SGA fetuses presenting at a median gestational age of 32 (range 26-35) weeks...
April 1, 2018: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29605590/measurement-of-fat-fraction-in-the-human-thymus-by-localized-nmr-and-three-point-dixon-mri-techniques
#18
Kenneth W Fishbein, Sokratis K Makrogiannis, Vanessa A Lukas, Marilyn Okine, Ramona Ramachandran, Luigi Ferrucci, Josephine M Egan, Chee W Chia, Richard G Spencer
PURPOSE: To develop a protocol to non-invasively measure and map fat fraction, fat/(fat+water), as a function of age in the adult thymus for future studies monitoring the effects of interventions aimed at promoting thymic rejuvenation and preservation of immunity in older adults. MATERIALS AND METHODS: Three-dimensional spoiled gradient echo 3T MRI with 3-point Dixon fat-water separation was performed at full inspiration for thymus conspicuity in 36 volunteers 19 to 56 years old...
March 29, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29602588/-transesophageal-echocardiography-in-perioperative-period-guiding-the-decision-making-during-hemodynamic-instability-due-to-atrial-fibrillation
#19
João Paulo Jordão Pontes, Aline Tonin Dos Santos, Marcello Fonseca Salgado Filho
BACKGROUND AND OBJECTIVE: Atrial fibrillation is the most common cardiac arrhythmia, which may occur during the perioperative period and lead to hemodynamic instability due to loss of atrial systolic function. During atrial fibrillation management, electrical cardioversion is one of the therapeutic options in the presence of hemodynamic instability; however, it exposes the patient to thromboembolic event risks. Transesophageal echocardiography is a diagnostic tool for thrombi in the left atrium and left atrial appendage with high sensitivity and specificity, allowing early and safe cardioversion...
March 27, 2018: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/29587655/impedance-cardiography-as-tool-for-continuous-hemodynamic-monitoring-during-cesarean-section-randomized-prospective-double-blind-study
#20
Alessandro D'Ambrosio, Antonella Cotoia, Renata Beck, Potito Salatto, Lada Zibar, Gilda Cinnella
BACKGROUND: Impedance Cardiography (ICG) is a non-invasive tool for continuous hemodynamic monitoring. Aims of our study were to assess the utility of ICG to evaluate the hemodynamic impact of 6 mg (GL6) vs 8 mg (GL8) levobupivacaine combined with fentanyl in healthy patients undergoing elective cesarean section; secondary, to compare the duration and quality of analgesia and anesthesia. METHODS: Sixty-two women receiving combined spinal-epidural (CSE) for elective cesarean delivery were randomly allocated to GL6 or GL8 groups...
March 27, 2018: BMC Anesthesiology
keyword
keyword
59907
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"