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"Hemodynamic monitoring"

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https://www.readbyqxmd.com/read/29033179/editorial-commentary-the-optimistic-future-of-remote-hemodynamic-monitoring
#1
EDITORIAL
Aaron M Wolfson, David M Shavelle
No abstract text is available yet for this article.
October 3, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28987428/vascular-access-complications-an-emergency-medicine-approach
#2
REVIEW
Erica Marie Simon, Shane Matthew Summers
Millions of central venous and arterial catheters are placed across the United States annually as mechanisms of obtaining advanced hemodynamic monitoring and facilitating acute resuscitation. Although presumably life saving or sustaining in many circumstances, current literature identifies the preprocedural and postprocedural complications of infection, thrombosis, embolism, and iatrogenic injury as resulting in patient morbidity and mortality. Today, through the application of aseptic technique, performance of operator training, and the utilization of ultrasound, emergency physicians may limit vascular access complications and improve patient outcomes...
November 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/28977099/fluid-overload-in-children-undergoing-mechanical-ventilation
#3
Clarice Laroque Sinott Lopes, Jefferson Pedro Piva
Patients admitted to an intensive care unit are prone to cumulated fluid overload and receive intravenous volumes through the aggressive resuscitation recommended for septic shock treatment, as well as other fluid sources related to medications and nutritional support. The liberal liquid supply strategy has been associated with higher morbidity and mortality. Although there are few prospective pediatric studies, new strategies are being proposed. This non-systematic review discusses the pathophysiology of fluid overload, its consequences, and the available therapeutic strategies...
September 28, 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/28971032/the-pulmonary-artery-catheter-in-2008-a-finally-maturing-modality
#4
REVIEW
Stanislaw P Stawicki, Mark P Prosciak
The first description of the flow-directed pulmonary artery catheter (PAC) was published in the 1970s by Jeremy Swan and William Ganz. Ever since its clinical debut, many controversies surrounded the use of the PAC. Regardless of these controversies, the most fundamental issues surrounding this hemodynamic monitoring device remain unresolved, including the exact indications, contraindications, identification of patients who potentially benefit from this technology, and the way we interpret and use PAC-derived parameters...
July 2017: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/28971029/comparison-of-pulmonary-artery-catheter-echocardiography-and-arterial-waveform-analysis-monitoring-in-predicting-the-hemodynamic-state-during-and-after-cardiac-surgery
#5
Paul Power, Allison Bone, Nicholas Simpson, Cheng-Hon Yap, Simon Gower, Michael Bailey
OBJECTIVE: The aim of this trial was to determine whether Flotrac Vigileo™ (FV™) provides a reliable representation of the hemodynamic state of a cardiac surgical patient population when compared to pulmonary artery catheter (PAC) and echocardiography in the peril-operative period. DESIGN: This was a prospective observational trial comparing perioperative hemodynamic states using transesophageal echocardiography (TEE), transthoracic echocardiography (TTE), FV™ and PAC during and post cardiothoracic surgery...
July 2017: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/28971025/what-s-new-in-critical-illness-and-injury-science-the-continued-search-for-the-ideal-hemodynamic-monitoring-device-spending-ourselves-in-a-worthy-cause-and-coming-up-short
#6
EDITORIAL
James P Hofmann, Jason M Stroud, Thomas J Papadimos
No abstract text is available yet for this article.
July 2017: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/28953199/the-utility-of-a-wireless-implantable-hemodynamic-monitoring-system-in-patients-requiring-mechanical-circulatory-support
#7
David S Feldman, Nader Moazami, Philip B Adamson, Juliane Vierecke, Nir Raval, Satya Shreenivas, Barry M Cabuay, Javier Jimenez, William T Abraham, John B O'Connell, Yoshifumi Naka
Proper timing of left ventricular assist device (LVAD) implantation in advanced heart failure patients is not well established and is an area of intense interest. In addition, optimizing LVAD performance after implantation remains difficult and represents a significant clinical need. Implantable hemodynamic monitoring systems may provide physicians with the physiologic information necessary to improve the timing of LVAD implantation as well as LVAD performance when compared with current methods. The CardioMEMS Heart sensor Allows for Monitoirng of Pressures to Improve Outcomes in NYHA Class III heart failure patients (CHAMPION) Trial enrolled 550 previously hospitalized patients with New York Heart Association (NYHA) class III heart failure...
September 25, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28953045/perioperative-acute-kidney-injury-an-under-recognized-problem
#8
Melanie Meersch, Christoph Schmidt, Alexander Zarbock
The incidence of perioperative acute kidney injury (AKI) is more common than previously recognized, especially in high-risk patients undergoing higher risk procedures. The growing number of patients who develop perioperative AKI is related, in part, to the aging population and increase in the number of individuals with chronic comorbidities, particularly those with premorbid chronic kidney disease. Despite the acceptance of standardization in the definition of AKI, clinicians routinely underdiagnose it and fail to appreciate that it is associated with considerable morbidity and mortality...
August 4, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28934895/high-early-fluid-input-after-aneurysmal-subarachnoid-hemorrhage-combined-report-of-association-with-delayed-cerebral-ischemia-and-feasibility-of-cardiac-output-guided-fluid-restriction
#9
Leonie J M Vergouw, Mohamud Egal, Bas Bergmans, Diederik W J Dippel, Hester F Lingsma, Mervyn D I Vergouwen, Peter W A Willems, Annemarie W Oldenbeuving, Jan Bakker, Mathieu van der Jagt
BACKGROUND: Guidelines on the management of aneurysmal subarachnoid hemorrhage (aSAH) recommend euvolemia, whereas hypervolemia may cause harm. We investigated whether high early fluid input is associated with delayed cerebral ischemia (DCI), and if fluid input can be safely decreased using transpulmonary thermodilution (TPT). METHODS: We retrospectively included aSAH patients treated at an academic intensive care unit (2007-2011; cohort 1) or managed with TPT (2011-2013; cohort 2)...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28925377/applied-upper-airway-resistance-instantly-affects-breath-components-a-unique-insight-into-pulmonary-medicine
#10
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/28867577/biological-properties-of-cardiac-mesenchymal-stem-cells-in-rats-with-diabetic-cardiomyopathy
#11
Diógenes Rodrigo Maronezzi de Paula, Vanessa Capuano, Daniel Mendes Filho, Anna Cecília Dias Maciel Carneiro, Virgínia de Oliveira Crema, Lucas Felipe de Oliveira, Aldo Rogélis Aquiles Rodrigues, Nicola Montano, Valdo José Dias da Silva
Cardiomyopathy is a major outcome in patients with diabetes mellitus (DM) and contributes to the high morbidity/mortality observed in this disease. AIMS: To evaluate several biological properties of cardiac mesenchymal stem cells (cMSCs) in a rat model of streptozotocin-induced DM with concomitant diabetic cardiomyopathy. MAIN METHODS: After 10weeks of DM induction, diabetic and control rats were assessed using ECG and ventricular hemodynamics monitoring. Then, the hearts were excised and processed for histology and for extracting non-cardiomyocytic cells...
November 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28856631/implications-of-entropy-and-surgical-pleth-index-guided-general-anaesthesia-on-clinical-outcomes-in-critically-ill-polytrauma-patients-a-prospective-observational-non-randomized-single-centre-study
#12
Alexandru Florin Rogobete, Dorel Sandesc, Carmen Alina Cradigati, Mirela Sarandan, Marius Papurica, Sonia Elena Popovici, Corina Vernic, Ovidiu Horea Bedreag
Being highly unstable, the critically ill polytrauma patient represents a challenge for the anaesthesia team. The aim of this study was to compare the Entropy and Surgical Pleth Index (SPI)-guided general anaesthesia with standard haemodynamic monitoring methods used in the critically ill polytrauma patients and to evaluate the incidence of hemodynamic events, as well as the opioid and vasopressor demand. 72 patients were included in this prospective observational study, divided in two groups, the ESPI Group (N = 37, patients that benefited from Entropy and SPI monitoring) and the STDR Group (N = 35 patients that benefited from standard hemodynamic monitoring)...
August 30, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28842666/impact-of-negative-inotropic-drugs-on-accuracy-of-diastolic-stress-echocardiography-for-evaluation-of-left-ventricular-filling-pressure
#13
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/28820609/cardio-pulmonary-interactions-physiologic-basis-and-clinical-applications
#14
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/28819006/increased-tissue-oxygenation-explains-the-attenuation-of-hyperaemia-upon-repetitive-pneumatic-compression-of-the-lower-leg
#15
Alessandro Messere, Gianluca Ceravolo, Walter Franco, Daniela Maffiodo, Carlo Ferraresi, Silvestro Roatta
Aim The rapid hyperaemia evoked by muscle compression is short-lived and was recently shown to undergo a rapid decrease even in spite of continuing mechanical stimulation. The present study aims at investigating the mechanisms underlying this attenuation which include local metabolic mechanisms, desensitization of mechano-sensitive pathways, and reduced efficacy of the muscle pump. Methods In 10 healthy subjects short sequences of mechanical compressions (n=3-6; 150 mmHg) of the lower leg were delivered at different inter-stimulus intervals (ranging from 20 to 160 s) through a customized pneumatic device...
August 17, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28804906/efficacy-of-a-mephentermine-based-product-as-a-vasopressor-and-a-cardiac-performance-enhancer-when-given-intramuscularly-to-cattle
#16
D N Q Cunha, C L Del Rio, B L Youngblood, E L Ferris, G E Geist, Y Ueyama, L C Franz, S Mathur, R L Hamlin
The goal of this study was to confirm the vasopressor and cardiac effects of POTENAY(®) INJETÁVEL (POT), a mephentermine-based product, given to cattle with induced vascular/cardiac depression. Ten healthy Holstein cattle (206 ± 13 kg) followed a randomized-complete-block design (RCBD) utilizing crossover study design. Each animal randomly received (1 ml/25 kg, IM) of either POT (n = 10) or volume-matched placebo control (0.9%NaCl, CP, n = 10). A subset of animals (n = 5) received POT first (day 0) while the remaining (n = 5) received CP; after a six-day washout period, cattle received the opposite compound...
August 14, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28804659/fatal-systemic-vasoconstriction-in-a-case-of-metastatic-small-intestinal-net
#17
Stenzel Jochen, Noe Sebastian, Holzapfel Konstantin, Erlmeier Franziska, Eyer Florian
An increased release of serotonin secreted by ileal NETs is thought to be the major factor causing the carcinoid syndrome. However, in acutely arising carcinoid crisis also other vasoactive factors may lead to hazardous fluctuations in blood pressure and bronchial constriction. In rare cases, systemic vasoconstriction can be observed, probably caused by catecholamines or similar acting substances. Here, we report a fatal case of fulminant systemic vasoconstriction possibly caused by catecholamines in a patient with metastasized ileal NET...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28800001/basic-hemodynamic-monitoring-using-ultrasound-or-electrical-cardiometry-during-transportation-of-neonates-and-infants
#18
Angele Boet, Gilles Jourdain, Serge Demontoux, Sebastien Hascoet, Pierre Tissieres, Catherine Rucker-Martin, Daniele De Luca
OBJECTIVES: Electrical cardiometry and heart ultrasound might allow hemodynamic evaluation during transportation of critically ill patients. Our aims were 1) to test feasibility of stroke volume monitoring using electrical cardiometry or ultrasound during transportation and 2) to investigate if transportation impacts on electrical cardiometry and ultrasound reliability. DESIGN: Prospective, pragmatic, feasibility cohort study. SETTING: Mobile ICUs specialized for neonatal and pediatric transportation...
August 9, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28789661/reference-free-determination-of-tissue-absorption-coefficient-by-modulation-transfer-function-characterization-in-spatial-frequency-domain
#19
Weiting Chen, Huijuan Zhao, Tongxin Li, Panpan Yan, Kuanxin Zhao, Caixia Qi, Feng Gao
BACKGROUND: Spatial frequency domain (SFD) measurement allows rapid and non-contact wide-field imaging of the tissue optical properties, thus has become a potential tool for assessing physiological parameters and therapeutic responses during photodynamic therapy of skin diseases. The conventional SFD measurement requires a reference measurement within the same experimental scenario as that for a test one to calibrate mismatch between the real measurements and the model predictions. Due to the individual physical and geometrical differences among different tissues, organs and patients, an ideal reference measurement might be unavailable in clinical trials...
August 8, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28779955/fluid-resuscitation-in-septic-patients-improves-systolic-but-not-diastolic-middle-cerebral-artery-flow-velocity
#20
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...
November 2017: Ultrasound in Medicine & Biology
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