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Journal of Clinical Monitoring and Computing

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https://www.readbyqxmd.com/read/27889843/a-randomized-comparison-of-the-ambu-auragain-versus-the-lma-supreme-in-patients-undergoing-gynaecologic-laparoscopic-surgery
#1
Ana M Lopez, Merce Agusti, Pedro Gambus, Montserrat Pons, Teresa Anglada, Ricard Valero
Second generation supraglottic airway devices providing high seal airway pressures are suitable for patients undergoing gynecologic laparoscopy. We compared the seal pressure achieved by the new Ambu AuraGain™ versus LMA Supreme™ following pneumoperitoneum in the Trendelenburg position. Sixty female patients were randomly allocated to ventilation with either the AuraGain or the Supreme. A target-controlled system was used to administer total intravenous anesthesia. Intracuff pressure was maintained below 60 cm H2O...
November 26, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27889842/early-differential-diagnosis-of-the-severity-of-acute-pancreatitis
#2
Alexander Popov, Anna Ershova, Sergey Podtaev, Peter Frick, Nadezhda Zubareva
There is a great need for early verification of the severity of acute pancreatitis (AP). The early stage of pathogenesis of AP is characterized by endothelial dysfunction which could be determined by wavelet analysis of skin temperature (WAST) technique. The aim is to investigate whether the dysregulation of microvascular tone caused by endothelial dysfunction and detected by WAST can be a significant indicator in early differential diagnosis of AP severity. The WAST performed in the frequency range of 0.0095-0...
November 26, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27885539/-pqrst-the-shamrock-method-for-lumbar-plexus-blocks
#3
LETTER
B C Tsui
No abstract text is available yet for this article.
November 24, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27878503/evaluation-of-different-near-infrared-spectroscopy-technologies-for-assessment-of-tissue-oxygen-saturation-during-a-vascular-occlusion-test
#4
Kevin Steenhaut, Koen Lapage, Thierry Bové, Stefan De Hert, Annelies Moerman
An increasing number of NIRS devices are used to provide measurements of peripheral tissue oxygen saturation (StO2). The aim of the present study is to test the hypothesis that despite technological differences between devices, similar trend values will be obtained during a vascular occlusion test. The devices compared are NIRO-200NX, which measures StO2 and oxyhemoglobin by spatially resolved spectroscopy and the Beer-Lambert law, respectively, and INVOS 5100C and Foresight Elite, which both measure StO2 with the Beer-Lambert law, enhanced with the spatial resolution technique...
November 22, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27873173/comparison-of-non-invasive-peripheral-venous-saturations-with-venous-blood-co-oximetry
#5
A M Belhaj, J P Phillips, P A Kyriacou, R M Langford
The estimation of venous oxygen saturations using photoplethysmography (PPG) may be useful as a noninvasive continuous method of detecting changes in regional oxygen supply and demand (e.g. in the splanchnic circulation). The aim of this research was to compare PPG-derived peripheral venous oxygen saturations directly with venous saturation measured from co-oximetry blood samples, to assess the feasibility of non-invasive local venous oxygen saturation. This paper comprises two similar studies: one in healthy spontaneously-breathing volunteers and one in mechanically ventilated anaesthetised patients...
November 21, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27866310/prediction-of-difficult-laryngoscopy-using-spirometry-a-pilot-study
#6
Serkan Dogru, Tugba Karaman, Aynur Sahin, Hakan Tapar, Serkan Karaman, Semih Arici, Mustafa Suren, Ziya Kaya, Battal Tahsin Somuk
Prediction of difficult laryngoscopy is still the uncovered secret of anesthetic practice. This pilot study is aimed to assess the efficacy of spirometry measurements in predicting difficult laryngoscopy compared with conventional airway assessment techniques. We enrolled 202 adults, ages 18-40 years, with an American Society of Anaesthesiologists score of I or II, scheduled for elective surgery and undergoing general anesthesia. Spirometry was used for lung capacity measurements before the operation. The Mallampati classification, neck circumference, sternomental distance, thyromental distance, maximum mouth-opening measurement, and upper lip bite test of the subjects were measured...
November 19, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27848142/parasympathetic-tone-variations-according-to-umbilical-cord-ph-at-birth-a-computerized-fetal-heart-rate-variability-analysis
#7
Laura Butruille, Julien De Jonckheere, Mathilde Flocteil, Charles Garabedian, Véronique Houfflin-Debarge, Laurent Storme, Philippe Deruelle, Régis Logier
Non-reassuring fetal heart rate tracings reflect an imbalance between the parasympathetic and sympathetic nervous systems. In this situation, fetal asphyxia can be suspected and may be confirmed by metabolic measurements at birth like low pH or high base deficit values. The objective of this study was to determine whether fetal asphyxia during labor is related to parasympathetic nervous system activity. This is a retrospective study of a database collected in 5 centers. Two hundred and ninety-nine fetal heart rate tracings collected during labor were analyzed...
November 15, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27848141/a-nurses-alarm-fatigue-questionnaire-development-and-psychometric-properties
#8
Camellia Torabizadeh, Amirhossein Yousefinya, Farid Zand, Mahnaz Rakhshan, Mohammad Fararooei
Alarm fatigue can adversely affect nurses' efficiency and concentration on their tasks, which is a threat to patients' safety. The purpose of the present study was to develop and test the psychometric accuracy of an alarm fatigue questionnaire for nurses. This study was conducted in two stages: in stage one, in order to establish the different aspects of the concept of alarm fatigue, the researchers reviewed the available literature-articles and books-on alarm fatigue, and then consulted several experts in a meeting to define alarm fatigue and develop statements for the questionnaire...
November 15, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27844299/comparison-of-pneumotachography-and-anemometery-for-flow-measurement-during-mechanical-ventilation-with-volatile-anesthetics
#9
Jarred R Mondoñedo, Jacob Herrmann, John S McNeil, David W Kaczka
Volatile anesthetics alter the physical properties of inhaled gases, such as density and viscosity. We hypothesized that the use of these agents during mechanical ventilation would yield systematic biases in estimates of flow ([Formula: see text]) and tidal volume (V T) for two commonly used flowmeters: the pneumotachograph (PNT), which measures a differential pressure across a calibrated resistive element, and the hot-wire anemometer (HWA), which operates based on convective heat transfer from a current-carrying wire to a flowing gas...
November 14, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27838880/a-feasability-study-of-color-flow-doppler-vectorization-for-automated-blood-flow-monitoring
#10
R Schorer, A Badoual, B Bastide, A Vandebrouck, M Licker, D Sage
An ongoing issue in vascular medicine is the measure of the blood flow. Catheterization remains the gold standard measurement method, although non-invasive techniques are an area of intense research. We hereby present a computational method for real-time measurement of the blood flow from color flow Doppler data, with a focus on simplicity and monitoring instead of diagnostics. We then analyze the performance of a proof-of-principle software implementation. We imagined a geometrical model geared towards blood flow computation from a color flow Doppler signal, and we developed a software implementation requiring only a standard diagnostic ultrasound device...
November 12, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27837298/comparing-measurement-methods-using-linear-least-squares-regression
#11
LETTER
Lars Øivind Høiseth, Jostein S Hagemo
No abstract text is available yet for this article.
November 11, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27832407/central-venous-to-arterial-carbon-dioxide-difference-and-the-effect-of-venous-hyperoxia-a-limiting-factor-or-an-additional-marker-of-severity-in-shock
#12
P Saludes, L Proença, G Gruartmoner, L Enseñat, A Pérez-Madrigal, C Espinal, J Mesquida
Central venous-to-arterial carbon dioxide difference (PcvaCO2) has demonstrated its prognostic value in critically ill patients suffering from shock, and current expert recommendations advocate for further resuscitation interventions when PcvaCO2 is elevated. PcvaCO2 combination with arterial-venous oxygen content difference (PcvaCO2/CavO2) seems to enhance its performance when assessing anaerobic metabolism. However, the fact that PCO2 values might be altered by changes in blood O2 content (the Haldane effect), has been presented as a limitation of PCO2-derived variables...
November 10, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27817009/applicability-of-stroke-volume-variation-in-patients-of-a-general-intensive-care-unit-a-longitudinal-observational-study
#13
Sebastian Mair, Julia Tschirdewahn, Simon Götz, Johanna Frank, Veit Phillip, Benedikt Henschel, Caroline Schultheiss, Ulrich Mayr, Sebastian Noe, Matthias Treiber, Roland M Schmid, Bernd Saugel, Wolfgang Huber
Sinus rhythm (SR) and controlled mechanical ventilation (CV) are mandatory for the applicability of respiratory changes of the arterial curve such as stroke volume variation (SVV) to predict fluid-responsiveness. Furthermore, several secondary limitations including tidal volumes <8 mL/kg and SVV-values within the "gray zone" of 9-13% impair prediction of fluid-responsiveness by SVV. Therefore, we investigated the prevalence of these four conditions in general ICU-patients. This longitudinal observational study analyzed a prospectively maintained haemodynamic database including 4801 transpulmonary thermodilution and pulse contour analysis measurements of 278 patients (APACHE-II 21...
November 5, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27796526/hemodynamic-monitoring-during-surgeries-in-beach-chair-position-what-can-a-big-picture-teach-us
#14
EDITORIAL
Markus M Luedi, Karim Bendjelid
No abstract text is available yet for this article.
October 31, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27796525/individualized-assessment-of-post-arthroplasty-recovery-by-actigraphy-a-methodology-study
#15
Iben Engelund Luna, Barry Peterson, Henrik Kehlet, Eske Kvanner Aasvang
Previous studies using actigraphy to monitor recovery after total knee arthroplasty (TKA) have reported activity as maximum and average count/min, but not utilized the full potential of the data by stratifying activity into various intensities or analysed the individual development in activity over time. The aim of this study was to describe a novel methodology using actigraphy data to describe specific activity-intensities potentially affected by surgery and patients with poor rehabilitation trajectories. Actigraphy data from 10 patients scheduled for primary unilateral TKA were recorded preoperatively and for 3 weeks postoperatively...
October 28, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27778209/prediction-of-inspired-oxygen-fraction-for-targeted-arterial-oxygen-tension-following-open-heart-surgery-in-non-smoking-and-smoking-patients
#16
Pierre Bou-Khalil, Salah Zeineldine, Robert Chatburn, Chakib Ayyoub, Farouk Elkhatib, Imad Bou-Akl, Mohamad El-Khatib
Simple and accurate expressions describing the PaO2-FiO2 relationship in mechanically ventilated patients are lacking. The current study aims to validate a novel mathematical expression for accurate prediction of the fraction of inspired oxygen that will result in a targeted arterial oxygen tension in non-smoking and smoking patients receiving mechanical ventilation following open heart surgeries. One hundred PaO2-FiO2 data pairs were obtained from 25 non-smoking patients mechanically ventilated following open heart surgeries...
October 24, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27778208/frequency-domain-vs-continuous-wave-near-infrared-spectroscopy-devices-a-comparison-of-clinically-viable-monitors-in-controlled-hypoxia
#17
David James Davies, Michael Clancy, Daniel Lighter, George M Balanos, Samuel John Edwin Lucas, Hamid Dehghani, Zhangjie Su, Mario Forcione, Antonio Belli
The Near-infrared spectroscopy (NIRS) has not been adopted as a mainstream monitoring modality in acute neurosurgical care due to concerns about its reliability and consistency. However, improvements in NIRS parameter recovery techniques are now available that may improve the quantitative accuracy of NIRS for this clinical context. Therefore, the aim of this study was to compare the abilities of a continuous-wave (CW) NIRS device with a similarly clinically viable NIRS device utilising a frequency-domain (FD) parameter recovery technique in detecting changes in cerebral tissue saturation during stepwise increases of experimentally induced hypoxia...
October 24, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27778207/estimation-of-breathing-rate-in-thermal-imaging-videos-a-pilot-study-on-healthy-human-subjects
#18
Carina Barbosa Pereira, Xinchi Yu, Michael Czaplik, Vladimir Blazek, Boudewijn Venema, Steffen Leonhardt
Diverse studies have demonstrated the importance of monitoring breathing rate (BR). Commonly, changes in BR are one of the earliest and major markers of serious complications/illness. However, it is frequently neglected due to limitations of clinically established measurement techniques, which require attachment of sensors. The employment of adhesive pads or thoracic belts in preterm infants as well as in traumatized or burned patients is an additional paramount issue. The present paper proposes a new robust approach, based on data fusion, to remotely monitor BR using infrared thermography (IRT)...
October 24, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27766526/implementation-of-a-novel-postoperative-monitoring-system-using-automated-modified-early-warning-scores-mews-incorporating-end-tidal-capnography
#19
Joseph M Blankush, Robbie Freeman, Joy McIlvaine, Trung Tran, Stephen Nassani, I Michael Leitman
Modified Early Warning Scores (MEWS) provide real-time vital sign (VS) trending and reduce ICU admissions in post-operative patients. These early warning calculations classically incorporate oxygen saturation, heart rate, respiratory rate, systolic blood pressure, and temperature but have not previously included end-tidal CO2 (EtCO2), more recently identified as an independent predictor of critical illness. These systems may be subject to failure when physiologic data is incorrectly measured, leading to false alarms and increased workload...
October 20, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27766525/comparison-of-the-qcon-and-qnox-indices-for-the-assessment-of-unconsciousness-level-and-noxious-stimulation-response-during-surgery
#20
Umberto Melia, Eva Gabarron, Mercé Agustí, Nuria Souto, Patricia Pineda, Joan Fontanet, Montserrat Vallverdu, Erik Weber Jensen, Pedro Gambus
The objective of this work is to compare the performances of two electroencephalogram based indices for detecting loss of consciousness and loss of response to nociceptive stimulation. Specifically, their behaviour after drug induction and during recovery of consciousness was pointed out. Data was recorded from 140 patients scheduled for general anaesthesia with a combination of propofol and remifentanil. The qCON 2000 monitor (Quantium Medical, Barcelona, Spain) was used to calculate the qCON and qNOX. Loss of response to verbal command and loss of eye-lash reflex were assessed during the transition from awake to anesthetized, defining the state of loss of consciousness...
October 20, 2016: Journal of Clinical Monitoring and Computing
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