keyword
MENU ▼
Read by QxMD icon Read
search

Invasive hemodynamic monitoring

keyword
https://www.readbyqxmd.com/read/28925890/the-use-of-hemodynamic-and-cerebral-monitoring-to-study-pharmacodynamics-in-neonates
#1
A Smits, L Thewissen, A Dereymaeker, E Dempsey, A Caicedo, Gunnar Naulaers
BACKGROUND: Drugs acting on the cardiovascular and central nervous system often display relatively fast clinical responses, which may differ in neonates compared to children and adults. Introduction of bedside monitoring tools might be of additional value in the pharmacodynamic (PD) assessment of such drugs in neonates. METHODS: We aim to provide an overview of the frequently used monitoring tools to assess drug effects on the hemodynamic status as well as the cerebral circulation, oxygenation and cerebral metabolism in neonates...
September 18, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28925377/applied-upper-airway-resistance-instantly-affects-breath-components-a-unique-insight-into-pulmonary-medicine
#2
Pritam Sukul, Jochen Schubert, Svend Kamysek, Phillip Trefz, Wolfram Miekisch
Respiratory parameters such as flow or rate have complex effects onto exhalation of volatile substances and can hamper clinical interpretation of breath biomarkers. We investigated effects of progressively applied upper-airway resistances onto exhalation of volatile organic compounds (VOCs) in healthy humans. We performed real-time mass-spectrometric determination of breath volatiles in 50 subjects with parallel non-invasive hemodynamic monitoring, breath-resolved spirometry and capnometry during controlled tidal breathing (12 breaths/min)...
September 19, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28916602/validation-study-of-image-based-fractional-flow-reserve-during-coronary-angiography
#3
Mariano Pellicano, Ifat Lavi, Bernard De Bruyne, Hana Vaknin-Assa, Abid Assali, Orna Valtzer, Yonit Lotringer, Giora Weisz, Yaron Almagor, Panagiotis Xaplanteris, Ajay J Kirtane, Pablo Codner, Martin B Leon, Ran Kornowski
BACKGROUND: Fractional flow reserve (FFR), an index of the hemodynamic severity of coronary stenoses, is derived from invasive measurements and requires a pressure-monitoring guidewire and hyperemic stimulus. Angiography-derived FFR measurements (FFRangio) may have several advantages. The aim of this study is to assess the diagnostic performance and interobserver reproducibility of FFRangio in patients with stable coronary artery disease. METHODS AND RESULTS: FFRangio is a computational method based on rapid flow analysis for the assessment of FFR...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28902381/-organ-interactions-heart-and-lung-management-of-the-acute-right-heart-failure
#4
Guido Michels, Roman Pfister
The pathophysiology and the management of patients with acute right heart failure are very complex. The bed-side focused echocardiography is the basis of differential diagnosis and acute diagnosis. Individual therapy monitoring is complex due to the strong preload dependence of the right ventricle and the limitation of non-invasive estimation of pulmonary-vascular hemodynamics, so that the indication for a pulmonary artery catheter should be liberal in acute right heart failure. The treatment goals of acute right heart failure are the treatment of the underlying disease or triggering factors in combination with individualized optimization of hemodynamic tailored to current right-ventricular function...
September 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28868984/the-new-kidney-donor-allocation-system-and-implications-for-anesthesiologists
#5
Srikanth Sridhar, Sara Guzman-Reyes, Sam D Gumbert, Semhar J Ghebremichael, Angelina R Edwards, Mark J Hobeika, Wasim A Dar, Evan G Pivalizza
Given potential disparity and limited allocation of deceased donor kidneys for transplantation, a new federal kidney allocation system was implemented in 2014. Donor organ function and estimated recipient survival in this system has implications for perioperative management of kidney transplant recipients. Early analysis suggests that many of the anticipated goals are being attained. For anesthesiologists, implications of increased dialysis duration and burdens of end-stage renal disease include increased cardiopulmonary disease, challenging fluid, hemodynamic management, and central vein access...
September 1, 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28842666/impact-of-negative-inotropic-drugs-on-accuracy-of-diastolic-stress-echocardiography-for-evaluation-of-left-ventricular-filling-pressure
#6
Joe-Elie Salem, Florent Laveau, Alexandre Ceccaldi, Christian Funck-Brentano, Jean Sebastien Hulot, Amel Mameri, Olivier Barthelemy, Gerard Helft, Claude Le Feuvre, Richard Isnard, Nadjib Hammoudi
The ratio of early diastolic trans-mitral flow velocity to tissue-Doppler mitral annular early diastolic velocity (E/e'), and left ventricular end-diastolic pressure(LVEDP) have been shown to be correlated at rest, provided that patients are not on positive inotropic drugs. Data concerning the latter correlation during exercise stress are conflicting. Therefore, we investigated if use of negative inotropic drugs (NID), impacts the accuracy of E/e' as a surrogate for LVEDP during low-level exercise. An exercise(50 watts) during cardiac invasive hemodynamic monitoring and an exercise echocardiography were performed prospectively within 24 hours in 54 patients (81%male, 62 ± 9years) with preserved LV Ejection-Fraction...
August 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28835858/case-report-of-first-angiography-based-on-line-ffr-assessment-during-coronary-catheterization
#7
Ran Kornowski, Hana Vaknin-Assa
Fractional flow reserve (FFR), an index of the hemodynamic severity of coronary stenoses, is derived from hyperemic pressure measurements and requires a pressure-monitoring guide wire and hyperemic stimulus. Although it has become the standard of reference for decision-making regarding coronary revascularization, the procedure remains underutilized due to its invasive nature. FFRangio is a novel technology that uses the patient's hemodynamic data and routine angiograms to generate a complete three-dimensional coronary tree, with color-coded display of the FFR values at each point along the vessels...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28821360/development-and-implementation-of-an-early-mobility-program-for-mechanically-ventilated-pediatric-patients
#8
Kristina A Betters, Kiran B Hebbar, David Farthing, Brittany Griego, Tricia Easley, Hartley Turman, Lauren Perrino, Stephanie Sparacino, Mary L deAlmeida
PURPOSE: Early mobility (EM) is being used in adult ICUs in an effort to treat and prevent intensive care unit acquired weakness (ICU-AW) and Post-Intensive Care Syndrome (PICS). Data supports children suffer from ICU-AW and PICS as well. Our objective was to create and implement an EM protocol for pediatric patients receiving invasive mechanical ventilation. METHODS: A multidisciplinary EM committee was formed to create and implement an EM protocol in a quarternary care PICU...
August 9, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28820609/cardio-pulmonary-interactions-physiologic-basis-and-clinical-applications
#9
Michael R Pinsky
The hemodynamic effects of ventilation can be grouped into three concepts: 1) spontaneous ventilation is exercise; 2) changes in lung volume alter autonomic tone, pulmonary vascular resistance, and can compress the heart in the cardiac fossa; 3) spontaneous inspiratory efforts decrease intrathoracic pressure (ITP) increasing venous return and impeding left ventricular (LV) ejection; whereas positive pressure ventilation decreases venous return and unloads LV ejection. Spontaneous inspiratory efforts may induce acute LV failure and cardiogenic pulmonary edema...
August 18, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28803941/fast-imaging-for-mapping-dynamic-networks
#10
REVIEW
Pierre LeVan, Burak Akin, Jürgen Hennig
The development of highly accelerated fMRI acquisition techniques has led to novel possibilities to monitor cerebral activity non-invasively and with unprecedented temporal resolutions. With the emergence of dynamic connectivity and its ability to provide a much richer characterization of brain function compared to static measures, fast fMRI may yet play a crucial role in tracking dynamically varying networks. In spite of the dominance of slow hemodynamic contributions to the BOLD signal, high temporal sampling rates nevertheless improve the measurement of physiological noise, yielding an exceptional sensitivity for the detection of periods of transient connectivity at time scales of a few tens of seconds...
August 10, 2017: NeuroImage
https://www.readbyqxmd.com/read/28802543/outcomes-and-predictors-of-failure-of-non-invasive-ventilation-in-patients-with-community-acquired-pneumonia-in-the-emergency-department
#11
Amjad Al-Rajhi, Anwar Murad, P Z Li, Jason Shahin
OBJECTIVE: We set out to describe the use and analyze the predictors of non-invasive ventilation failure in patients with community-acquired pneumonia who receive non-invasive ventilation as first line ventilatory therapy in the emergency department. METHODS: A retrospective cohort study was conducted among consecutive patients with community acquired pneumonia requiring ventilator support presenting to two tertiary care university-affiliated emergency departments...
August 7, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28802090/assessment-of-the-dynamics-of-human-glymphatic-system-by-near-infrared-spectroscopy-nirs
#12
Teemu Myllylä, Markus Harju, Vesa Korhonen, Alexander Bykov, Vesa Kiviniemi, Igor Meglinski
Fluctuations in brain water content has attracted increasing interest, particularly as regards studies of the glymphatic system, which is connected with the complex organisation of dural lymphatic vessels, responsible for cleaning tissue. Disturbances of glymphatic circulation are associated with several brain disorders, including dementia. This paper introduces an approach to non-invasive measurement of water dynamics in the human brain utilizing near-infrared spectroscopy (NIRS). We demonstrate the possibility to sense dynamic variations of water content between the skull and grey matter, for instance, in the subarachnoid space...
August 12, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28779955/fluid-resuscitation-in-septic-patients-improves-systolic-but-not-diastolic-middle-cerebral-artery-flow-velocity
#13
Annika A de Goede, Bert G Loef, Auke C Reidinga, Arjen Schaafsma
To investigate the effects of fluid resuscitation on cerebral hemodynamics in sepsis, the following set of transcranial Doppler (TCD) parameters was used: maximal change in flow velocity (FV) during stroke onset (acc), maximal FV during first (sys1) or second (sys2) phase of systole and mean diastolic FV (dias@560). We aim to evaluate changes in cerebral hemodynamics that result from (i) sepsis and (ii) adequate fluid resuscitation in critically ill septic patients. In the majority of 16 septic patients sys2 was initially absent but reappeared during the period of fluid resuscitation; whereas sys2 absence was never seen in healthy controls...
August 2, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28762449/the-value-of-internal-jugular-vein-collapsibility-index-in-sepsis
#14
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/28761030/comparison-of-the-trendelenburg-position-versus-upper-limb-tourniquet-on-internal-jugular-vein-diameter
#15
Pelin Karaaslan, Banu Vural Gokay, Muhammet Ahmet Karakaya, Kamil Darcin, Afak Durur Karakaya, Tugrul Ormeci, Emine Arzu Kose
BACKGROUND: Central venous cannulation is a necessary invasive procedure for fluid management, haemodynamic monitoring and vasoactive drug therapy. The right internal jugular vein (RIJV) is the preferred site. Enlargement of the jugular vein area facilitates catheterization and reduces complication rates. Common methods to enlarge the RIJV cross-sectional area are the Trendelenburg position and the Valsalva maneuver. OBJECTIVE: Compare the Trendelenburg position with upper-extremity venous return blockage using the tourniquet technique...
July 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28754888/gyrocardiography-a-new-non-invasive-monitoring-method-for-the-assessment-of-cardiac-mechanics-and-the-estimation-of-hemodynamic-variables
#16
Mojtaba Jafari Tadi, Eero Lehtonen, Antti Saraste, Jarno Tuominen, Juho Koskinen, Mika Teräs, Juhani Airaksinen, Mikko Pänkäälä, Tero Koivisto
Gyrocardiography (GCG) is a new non-invasive technique for assessing heart motions by using a sensor of angular motion - gyroscope - attached to the skin of the chest. In this study, we conducted simultaneous recordings of electrocardiography (ECG), GCG, and echocardiography in a group of subjects consisting of nine healthy volunteer men. Annotation of underlying fiducial points in GCG is presented and compared to opening and closing points of heart valves measured by a pulse wave Doppler. Comparison between GCG and synchronized tissue Doppler imaging (TDI) data shows that the GCG signal is also capable of providing temporal information on the systolic and early diastolic peak velocities of the myocardium...
July 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28749853/the-icu-is-becoming-a-main-battlefield-for-severe-maternal-rescue-in-china-an-8-year-single-center-clinical-experience
#17
Liu Yuqi, Guoliang Tan, Shang Chengming, Sun Xuri
OBJECTIVES: To review the characteristics of and to identify the reasons for severe maternal admissions to the ICU. DESIGN: This was an analytical, observational, open, and retrospective study. SETTING: In our ICU. PATIENTS: A total of 487 severe maternal cases were reviewed during the 8-year study period of January 2009 to December 2016. INTERVENTION: None. MEASUREMENTS AND MAIN RESULTS: A total of 487 severe maternal cases (12...
July 26, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28749096/early-goal-directed-therapy-by-continuous-non-invasive-hemodynamic-monitoring-still-elusive
#18
Ole Broch, Matthias Gruenewald, Arne Carstens, Jochen Renner
No abstract text is available yet for this article.
July 26, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28743336/-analysis-of-factors-affecting-the-prognosis-of-icu-patients-by-multiple-logistic-regression-model-a-retrospective-cohort-study-of-1-299-patients-in-12-consecutive-years
#19
Jianfeng Liang, Zhiyong Li, Yan Zhang, Wei Zhang, Haishan Dong, Yun Zhang, Chang Xu, Maolong Gao
OBJECTIVE: To explore the prognostic factors of intensive care unit (ICU) patients. METHODS: A retrospective cohort study was conducted. The clinical data of patients admitted to ICU of Beijing Geriatric Hospital from January 2005 to December 2016 were collected. According to the prognosis, the patients were divided into death group and survival group, and the mortality trend with time and age was observed. Survival and death were treated as dependent variables, while the gender, age, reason of ICU admission, acute physiology and chronic health evaluation II (APACHE II) score, whether undergoing invasive mechanical ventilation (MV), invasive MV reason, duration of invasive MV, whether successful weaning, whether ICU nosocomial infection, hospital acquired pneumonia (HAP), central line-associated bloodstream infection (CLABSI), acute kidney injury (AKI) occurred, whether undergoing continuous blood purification (CBP), whether septic shock occurred, whether undergoing invasive hemodynamic monitoring or blood transfusion and length of ICU stay were used as the independent variables...
July 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28740468/evolution-of-precision-medicine-and-surgical-strategies-for-bicuspid-aortic-valve-associated-aortopathy
#20
Ali Fatehi Hassanabad, Alex J Barker, David Guzzardi, Michael Markl, Chris Malaisrie, Patrick M McCarthy, Paul W M Fedak
Bicuspid aortic valve (BAV) is a common congenital cardiac malformation affecting 1-2% of people. BAV results from fusion of two adjacent aortic valve cusps, and is associated with dilatation of the aorta, known as bicuspid valve associated aortopathy. Bicuspid valve aortopathy is progressive and associated with catastrophic clinical events, such as aortic dissection and rupture. Therefore, frequent monitoring and early intervention with prophylactic surgical resection of the proximal aorta is often recommended...
2017: Frontiers in Physiology
keyword
keyword
24290
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"