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Haemodynamic monitoring

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https://www.readbyqxmd.com/read/29777373/safety-and-feasibility-of-pulmonary-artery-pressure-guided-heart-failure-therapy-rationale-and-design-of-the-prospective-cardiomems-monitoring-study-for-heart-failure-mems-hf
#1
Christiane E Angermann, Birgit Assmus, Stefan D Anker, Johannes Brachmann, Georg Ertl, Friedrich Köhler, Stephan Rosenkranz, Carsten Tschöpe, Philip B Adamson, Michael Böhm
BACKGROUND: Wireless monitoring of pulmonary artery (PA) pressures with the CardioMEMS HF™ system is indicated in patients with New York Heart Association (NYHA) class III heart failure (HF). Randomized and observational trials have shown a reduction in HF-related hospitalizations and improved quality of life in patients using this device in the United States. OBJECTIVE: MEMS-HF is a prospective, non-randomized, open-label, multicenter study to characterize safety and feasibility of using remote PA pressure monitoring in a real-world setting in Germany, The Netherlands and Ireland...
May 19, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29757424/continuous-monitoring-of-kidney-transplant-perfusion-with-near-infrared-spectroscopy
#2
Georgia Malakasioti, Stephen D Marks, Tom Watson, Fariba Williams, Mariesa Taylor-Allkins, Nizam Mamode, Justin Morgan, Wesley N Hayes
Background: Current reliance on clinical, laboratory and Doppler ultrasound (DUS) parameters for monitoring kidney transplant perfusion in the immediate post-operative period in children risks late recognition of allograft hypoperfusion and vascular complications. Near-infrared spectroscopy (NIRS) is a real-time, non-invasive technique for monitoring tissue oxygenation percutaneously. NIRS monitoring of kidney transplant perfusion has not previously been validated to the gold standard of DUS...
May 11, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29750699/implementation-of-closed-loop-assisted-intra-operative-goal-directed-fluid-therapy-during-major-abdominal-surgery-a-case-control-study-with-propensity-matching
#3
Alexandre Joosten, Sean Coeckelenbergh, Amelie Delaporte, Brigitte Ickx, Jean Closset, Thierry Roumeguere, Luc Barvais, Luc Van Obbergh, Maxime Cannesson, Joseph Rinehart, Philippe Van der Linden
BACKGROUND: Goal-directed fluid therapy (GDFT) has been associated with improved patient outcomes. However, implementation of GDFT protocols remains low despite growing published evidence and the recommendations of multiple regulatory bodies in Europe. We developed a closed-loop-assisted GDFT management system linked to a pulse contour monitor to assist anaesthesiologists in applying GDFT. OBJECTIVE: To assess the impact of our closed-loop system in patients undergoing major abdominal surgery in an academic hospital without a GDFT programme...
May 9, 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29728410/what-is-the-normal-haemodynamic-response-to-passive-leg-raise-a-study-of-healthy-volunteers
#4
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/29720756/anaesthesia-for-laparoscopic-nephrectomy-does-end-tidal-carbon-dioxide-measurement-correlate-with-arterial-carbon-dioxide-measurement
#5
Nithin Jayan, Jaya Susan Jacob, Mohan Mathew
Background and Aims: Not many studies have explored the correlation between arterial carbon dioxide tension (PaCO2 ) and end-tidal carbon dioxide tension (ETCO2 ) in surgeries requiring pneumoperitoneum of more than 1 hour duration with the patient in non-supine position. The aim of our study was to evaluate the correlation of ETCO2 with PaCO2 in patients undergoing laparoscopic nephrectomy under general anaesthesia. Methods: A descriptive study was performed in thirty patients undergoing laparoscopic nephrectomy from September 2014 to August 2015...
April 2018: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29695729/cerebral-oxygen-saturation-and-peripheral-perfusion-in-the-extremely-premature-infant-with-intraventricular-and-or-pulmonary-haemorrhage-early-in-life
#6
Thierry P Beausoleil, Marie Janaillac, Keith J Barrington, Anie Lapointe, Mathieu Dehaes
Extremely preterm infants are at higher risk of pulmonary (PH) and intraventricular (IVH) haemorrhage during the transitioning physiology due to immature cardiovascular system. Monitoring of haemodynamics can detect early abnormal circulation that may lead to these complications. We described time-frequency relationships between near infrared spectroscopy (NIRS) cerebral regional haemoglobin oxygen saturation (CrSO2 ) and preductal peripheral perfusion index (PI), capillary oxygen saturation (SpO2 ) and heart rate (HR) in extremely preterm infants in the first 72 h of life...
April 25, 2018: Scientific Reports
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
#7
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/29679768/comparison-of-proaqt-pulsioflex%C3%A2-and-oesophageal-doppler-for-intraoperative-haemodynamic-monitoring-during-intermediate-risk-abdominal-surgery
#8
Grégoire Weil, Cyrus Motamed, Alexandre Eghiaian, Xavier Monnet, Stéphanie Suria
OBJECTIVE: To compare cardiac index (CI) between Proaqt/PulsioFlex® and esophageal Doppler (OD) and the ability of the PulsioFlex® to track CI changes induced by fluid challenge and secondly to assess the impact of the time interval between two auto-calibrations of PulsioFlex® on the accuracy of the measured CI. METHODS: In a single hospital, 49 intermediate-risk oncologic abdominal surgery patients were included in an observational study. We measured the cardiac Index (CI) provided by OD and by the Proaqt/PulsioFlex® before and after internal calibration, which were performed randomly at specific intervals after the initial one (30, 60, 90 and 120min)...
April 18, 2018: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/29658894/assessing-mental-stress-from-the-photoplethysmogram-a-numerical-study
#9
Peter H Charlton, Patrick Celka, Bushra Farukh, Phil Chowienczyk, Jordi Alastruey
<b>Objective:</b> Mental stress is detrimental to cardiovascular health, being a risk factor for coronary heart disease and a trigger for cardiac events. However, it is not currently routinely assessed. The aim of this study was to identify features of the photoplethysmogram (PPG) pulse wave which are indicative of mental stress.
 
 <b>Approach:</b> A numerical model of pulse wave propagation was used to simulate blood pressure signals, from which simulated PPG pulse waves were estimated using a transfer function...
April 16, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29655877/endocrine-and-haemodynamic-changes-in-resistant-hypertension-and-blood-pressure-responses-to-spironolactone-or-amiloride-the-pathway-2-mechanisms-substudies
#10
Bryan Williams, Thomas M MacDonald, Steve V Morant, David J Webb, Peter Sever, Gordon T McInnes, Ian Ford, J Kennedy Cruickshank, Mark J Caulfield, Sandosh Padmanabhan, Isla S Mackenzie, Jackie Salsbury, Morris J Brown
BACKGROUND: In the PATHWAY-2 study of resistant hypertension, spironolactone reduced blood pressure substantially more than conventional antihypertensive drugs. We did three substudies to assess the mechanisms underlying this superiority and the pathogenesis of resistant hypertension. METHODS: PATHWAY-2 was a randomised, double-blind crossover trial done at 14 UK primary and secondary care sites in 314 patients with resistant hypertension. Patients were given 12 weeks of once daily treatment with each of placebo, spironolactone 25-50 mg, bisoprolol 5-10 mg, and doxazosin 4-8 mg and the change in home systolic blood pressure was assessed as the primary outcome...
April 11, 2018: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/29617792/evaluating-intimal-hyperplasia-under-clinical-conditions
#11
Ioanna Mylonaki, Elisabeth Allain, Francesco Strano, Eric Allémann, Jean-Marc Corpataux, Paolo Meda, Olivier Jordan, Florence Delie, Anne-Laure Rougemont, Jacques-Antoine Haefliger, François Saucy
OBJECTIVES: Open arterial revascularization using venous segments is frequently associated with the development of intimal hyperplasia (IH), leading to severe restenosis and graft failure. The lack of treatment to prevent this pathology is a major problem. Therefore, we generated a new porcine model, which closely mimics the clinical development of human IH, to test the therapeutic potential of candidate drugs. METHODS: A patch of jugular vein was sutured to the right common carotid artery of pigs, to expose the vein to haemodynamic conditions of the arterial bed...
March 30, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29607742/evaluation-of-cardiac-autonomic-functions-in-myasthenia-gravis
#12
Zehra Uysal Kocabas, Ferah Kizilay, Ibrahim Basarici, Hilmi Uysal
OBJECTIVE: We aimed to comprehensively evaluate cardiac autonomic function in patients with MG and to investigate the relationship between this disorder and disease duration, thymoma and acetylcholine receptor antibody positivity in cases of cardiac autonomic disorder. METHODS: The study included 30 patients with MG and 30 age-matched healthy control subjects. Haemodynamic parameters (heart rate, systolic and diastolic blood pressure) and autonomic parameters (low frequency [LF], high-frequency [HF], sympathovagal balance [LF/HF], baroreceptor reflex sensitivity [BRS]) of the patients were automatically measured at rest and in a tilted position with the Task Force Monitor...
April 2, 2018: Neurological Research
https://www.readbyqxmd.com/read/29590459/systemic-haemodynamics-in-haemodialysis-intradialytic-changes-and-prognostic-significance
#13
Stefanie Haag, Björn Friedrich, Andreas Peter, Hans-Ulrich Häring, Nils Heyne, Ferruh Artunc
Background: Although haemodialysis (HD) leads to alterations of systemic haemodynamics that can be monitored using dilution methods, there is a lack of data on the diagnostic and prognostic significance of haemodynamic monitoring during routine HD. Methods: In this multicentre study, we measured cardiac index (CI), access flow (AF) and central blood volume index (CBVI) during a single HD session in stable HD patients (n = 215) using the Transonic HD03 monitor (Transonic, Ithaca, NY, USA)...
March 26, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29576114/effect-of-goal-directed-haemodynamic-therapy-on-postoperative-complications-in-low-moderate-risk-surgical-patients-a-multicentre-randomised-controlled-trial-fedora-trial
#14
J M Calvo-Vecino, J Ripollés-Melchor, M G Mythen, R Casans-Francés, A Balik, J P Artacho, E Martínez-Hurtado, A Serrano Romero, C Fernández Pérez, S Asuero de Lis
BACKGROUND: The aim of this study was to evaluate postoperative complications in patients having major elective surgery using oesophageal Doppler monitor-guided goal-directed haemodynamic therapy (GDHT), in which administration of fluids, inotropes, and vasopressors was guided by stroke volume, mean arterial pressure, and cardiac index. METHODS: The FEDORA trial was a prospective, multicentre, randomised, parallel-group, controlled patient- and observer-blind trial conducted in adults scheduled for major elective surgery...
April 2018: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29555789/targeting-skeletal-muscle-tissue-oxygenation-sto-2-in-adults-with-severe-sepsis-and-septic-shock-a-randomised-controlled-trial-oto-sts-study
#15
Olivier Nardi, Elizabeth Zavala, Claude Martin, Serafim Nanas, Thomas Scheeren, Andrea Polito, Xavi Borrat, Djillali Annane
OBJECTIVE: Evaluation of the ratio of oxyhaemoglobin to total haemoglobin in skeletal muscle (StO2 ) using near-infrared spectroscopy may aid in the monitoring of patients with sepsis. This study assessed the benefits and risks of targeting StO2 in adults with severe sepsis or septic shock. DESIGN: A European randomised controlled trial was performed on two parallel groups. SETTING: Five intensive care units (ICU) in France, Greece, Spain and Germany were used for the study...
March 19, 2018: BMJ Open
https://www.readbyqxmd.com/read/29555415/does-the-use-of-a-pulmonary-artery-catheter-make-a-difference-during-or-after-cardiac-surgery
#16
REVIEW
Corey Joseph, Marie Garrubba, Julian A Smith, Angela Melder
Pulmonary artery catheters (PACs) were introduced in 1970. Since then, their use has steadily increased. However, there have been questions raised regarding their efficacy for multiple clinical scenarios. The purpose of this systematic review was to determine the safety and effectiveness of routine use of PACs post cardiac surgery on mortality, complications, days in intensive care unit, days in hospital, and costs in patients undergoing cardiac surgery, or patients who end up in an intensive care unit. METHODS: Medline, All EBM, Embase and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases were searched using predetermined search terms...
February 21, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29554234/a-computational-analysis-of-different-endograft-designs-for-zone-0-aortic-arch-repair
#17
Theodorus M van Bakel, Christopher J Arthurs, Joost A van Herwaarden, Frans L Moll, Kim A Eagle, Himanshu J Patel, Santi Trimarchi, C Alberto Figueroa
OBJECTIVES: Aortic arch repair remains a major surgical challenge. Multiple manufacturers are developing branched endografts for Zone 0 endovascular repair, extending the armamentarium for minimally invasive treatment of aortic arch pathologies. We hypothesize that the design of the Zone 0 endograft has a significant impact on the postoperative haemodynamic performance, particularly in the cervical arteries. The goal of our study was to compare the postoperative haemodynamic performance of different Zone 0 endograft designs...
March 15, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29544369/comparison-of-three-haemodynamic-monitoring-methods-in-comatose-post-cardiac-arrest-patients
#18
Henrik Staer-Jensen, Kjetil Sunde, Espen Rostrup Nakstad, Jan Eritsland, Geir Øystein Andersen
OBJECTIVES: Haemodynamic monitoring during post arrest care is important to optimise treatment. We compared stroke volume measured by minimally-invasive monitoring devices with or without thermodilution calibration, and transthoracic echocardiography (TTE), and hypothesised that thermodilution calibration would give stroke volume index (SVI) more in agreement with TTE during targeted temperature management (TTM). DESIGN: Comatose out-of-hospital cardiac arrest survivors receiving TTM (33 °C for 24 hrs) underwent haemodynamic monitoring with arterial pulse contour analyses with (PiCCO2®) and without (FloTrac® /Vigileo® monitor® ) transpulmonary thermodilution calibration...
June 2018: Scandinavian Cardiovascular Journal: SCJ
https://www.readbyqxmd.com/read/29536783/effects-of-remifentanil-and-dexmedetomidine-on-the-mother-s-awareness-and-neonatal-apgar-scores-in-caesarean-section-under-general-anaesthesia
#19
Kenan Kart, Ayse Hanci
Objective This study aimed to compare the effects of remifentanil and dexmedetomidine on awareness during the induction of general anaesthesia. Material and Methods Ninety patients scheduled for elective caesarean section under general anaesthesia were included and randomly divided into three anaesthesia groups: 2 mg/kg propofol (control group); 2 mg/kg propofol and 1 µg/kg dexmedetomidine (dexmedetomidine group); and 2 mg/kg propofol and 1 µg/kg remifentanil (remifentanil group). All patients received routine monitoring, and Apgar scores at 1 and 5 minutes were recorded...
May 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29510691/a-preliminary-study-evaluating-cardiac-output-measurement-using-pressure-recording-analytical-method-pram-in-anaesthetized-dogs
#20
Angela Briganti, Flavia Evangelista, Paola Centonze, Annaliso Rizzo, Francesco Bentivegna, Antonio Crovace, Francesco Staffieri
BACKGROUND: Haemodynamic variations normally occur in anaesthetized animals, in relation to the animal status, administered drugs, sympathetic and parasympathetic tone, fluid therapy and surgical stimulus. The possibility to measure some cardiovascular parameters, such as cardiac output (CO), during anaesthesia would be beneficial for both the anaesthesia management and its outcome. New techniques for the monitoring of CO are aimed at finding methods which are non invasive, accurate and with good trending ability, which can be used in a clinical setting...
March 6, 2018: BMC Veterinary Research
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