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Journal of Clinical Monitoring and Computing

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https://www.readbyqxmd.com/read/28108832/beat-by-beat-assessment-of-cardiac-afterload-using-descending-aortic-velocity-pressure-loop-during-general-anesthesia-a-pilot-study
#1
Fabrice Vallée, Arthur Le Gall, Jona Joachim, Olivier Passouant, Joaquim Matéo, Arnaud Mari, Sandrine Millasseau, Alexandre Mebazaa, Etienne Gayat
Continuous cardiac afterload evaluation could represent a useful tool during general anesthesia (GA) to titrate vasopressor effect. Using beat to beat descending aortic pressure(P)/flow velocity(U) loop obtained from esophageal Doppler and femoral pressure signals might allow to track afterload changes. Methods We defined three angles characterizing the PU loop (alpha, beta and Global After-Load Angle (GALA)). Augmentation index (AIx) and total arterial compliance (Ctot) were measured via radial tonometry. Peripheral Vascular Resistances (PVR) were also calculated...
January 20, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28108831/the-effect-of-mouth-prop-on-endotracheal-tube-intracuff-pressure-in-children-during-dental-rehabilitation-under-general-anaesthesia
#2
Dilek Günay Canpolat, Kenan Cantekin, Adnan Bayram, Mustafa Denizhan Yıldırım
Although the endotracheal tube (ETT) cuff may be associated with tracheal morbidity, cuffed tubes may reduce the aspiration risk in oral procedures. Dentists must use a mouth prop to facilitate oral visualization and to protect the oral soft tissues during dental rehabilitation under general anaesthesia (DRGA). The aim of this study was to evaluate the effect of mouth prop on endotracheal tube intracuff pressure in children during DRGA. Two-hundred and three ASA I-II patients, <18 years of age (mean: 5...
January 20, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28105538/comparison-of-non-invasive-blood-pressure-monitoring-using-modified-arterial-applanation-tonometry-with-intra-arterial-measurement
#3
Jarkko Harju, Antti Vehkaoja, Pekka Kumpulainen, Stefano Campadello, Ville Lindroos, Arvi Yli-Hankala, Niku Oksala
Intermittent non-invasive blood pressure measurement with tourniquets is slow, can cause nerve and skin damage, and interferes with other measurements. Invasive measurement cannot be safely used in all conditions. Modified arterial tonometry may be an alternative for fast and continuous measurement. Our aim was to compare arterial tonometry sensor (BPro(®)) with invasive blood pressure measurement to clarify whether it could be utilized in the postoperative setting. 28 patients who underwent elective surgery requiring arterial cannulation were analyzed...
January 19, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28097611/assessing-nitrous-oxide-effect-using-electroencephalographically-based-depth-of-anesthesia-measures-cortical-state-and-cortical-input
#4
Levin Kuhlmann, David T J Liley
Existing electroencephalography (EEG) based depth of anesthesia monitors cannot reliably track sedative or anesthetic states during n-methyl-D-aspartate (NMDA) receptor antagonist based anesthesia with ketamine or nitrous oxide (N2O). Here, a physiologically-motivated depth of anesthesia monitoring algorithm based on autoregressive-moving-average (ARMA) modeling and derivative measures of interest, Cortical State (CS) and Cortical Input (CI), is retrospectively applied in an exploratory manner to the NMDA receptor antagonist N2O, an adjuvant anesthetic gas used in clinical practice...
January 17, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28078617/changes-in-the-first-postoperative-night-bispectral-index-of-patients-after-thyroidectomy-with-different-types-of-primary-anesthetic-management-a-randomized-controlled-trial
#5
Wen-Fei Tan, Zhi-Lin Wang, Hong Ma, Feng Jin, Huang-Wei Lu
Despite major advances in anesthesia management and developments in anesthetic agents, postoperative sleep disturbances remain dissatisfactory for many patients. We hypothesized that propofol might have a subtle influence on sleep after thyroidectomy compared to sevoflurane. A randomized, single-blinded, controlled trial was conducted at the First Hospital of China Medical University from October 2014 to October 2015. One hundred and twenty-four patients undergoing thyroidectomy were enrolled and received sevoflurane (sevoflurane group) or propofol (propofol group) as anesthesia maintenance...
January 12, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28074417/influence-of-the-marvelous%C3%A2-three-way-stopcock-on-the-natural-frequency-and-damping-coefficient-in-blood-pressure-transducer-kits
#6
Shigeki Joseph Luke Fujiwara, Keiichi Tachihara, Satoshi Mori, Kentaro Ouchi, Shoko Itakura, Michiko Yasuda, Takashi Hitosugi, Uno Imaizumi, Yoichiro Miki, Izumi Toyoguchi, Kazu-Ichi Yoshida, Takeshi Yokoyama
Two types of Planecta™ ports are commonly used as sampling ports in blood pressure transducer kits: a flat-type port (FTP) and a port with a three-way stopcock (PTS). Recently, a new type of three-way stopcock (Marvelous™) has been released as a Planecta™ counterpart, but its effects on the frequency characteristics and reliability of blood pressure monitoring have not been investigated. We assessed the influence of the Marvelous™ stopcock on the frequency characteristics of the pressure transducer kit...
January 10, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28064413/journal-of-clinical-monitoring-and-computing-2016-end-of-year-summary-cardiovascular-and-hemodynamic-monitoring
#7
REVIEW
Bernd Saugel, Karim Bendjelid, Lester A Critchley, Steffen Rex, Thomas W L Scheeren
The assessment and optimization of cardiovascular and hemodynamic variables is a mainstay of patient management in the care for critically ill patients in the intensive care unit (ICU) or the operating room (OR). It is, therefore, of outstanding importance to meticulously validate technologies for hemodynamic monitoring and to study their applicability in clinical practice and, finally, their impact on treatment decisions and on patient outcome. In this regard, the Journal of Clinical Monitoring and Computing (JCMC) is an ideal platform for publishing research in the field of cardiovascular and hemodynamic monitoring...
January 7, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28064412/journal-of-clinical-monitoring-and-computing-2016-end-of-year-summary-anesthesia
#8
REVIEW
Jan F A Hendrickx, Andre M De Wolf
Clinical monitoring and computing are essential during general anesthesia. As a result it would be impossible to review all the articles published in the Journal of Clinical Monitoring and Computing that are relevant to anesthesia. We therefore will limit this summary to those articles that are uniquely related to anesthesia. The topics include: anesthesia machines; ensuring the airway; anesthetic depth; neuromuscular transmission monitoring; locoregional anesthesia; ultrasound; and pain.
January 7, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28025752/sound-level-analysis-in-endotracheal-tube-obstruction-in-spontaneous-breathing-and-mechanical-ventilation-an-animal-model-study
#9
Behzad Maghsoodi, Golnar Sabetian, Aram Azimi, Nader Tanideh, Alireza Mehdizade
Endotracheal tube (ETT) obstruction, either complete or partial, is a serious life threatening complication in intubated patients. Therefore, implementing a practical method to diagnose this condition is vital. Alteration in respiratory sound signals caused by ETT occlusion can be used for early detection of obstruction. This study is aimed to assess changes in respiratory sound signals after creation of different types of tubal obstruction in an animal model experiment. Artificial internal obstructions were created in three different sizes and three different locations by stitching pieces of smaller tubes in ETTs with internal diameter of 8 mm...
December 26, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28025751/influence-of-continuously-evolving-transcatheter-aortic-valve-implantation-technology-on-cerebral-oxygenation
#10
Ward Eertmans, Cornelia Genbrugge, Tom Fret, Maud Beran, Kim Engelen, Herbert Gutermann, Margot Vander Laenen, Willem Boer, Bert Ferdinande, Frank Jans, Jo Dens, Cathy De Deyne
This study assessed the influence of the evolution in Transcatheter Aortic Valve Implantation technology on cerebral oxygenation. Cerebral oxygenation was measured continuously with Near-Infrared Spectroscopy and compared retrospectively between balloon-expandable, self-expandable and differential deployment valves which were implanted in 12 (34%), 17 (49%) and 6 patients (17%), respectively. Left and right SctO2 values were averaged at four time points and used for analysis (i.e. at baseline, balloon-aortic valvuloplasty, valve deployment, and at the end of the procedure)...
December 26, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28013421/measuring-core-temperature-using-the-proprietary-application-and-thermo-smartphone-adapter
#11
Tomasz Darocha, Jacek Majkowski, Tomasz Sanak, Paweł Podsiadło, Sylweriusz Kosiński, Kinga Sałapa, Piotr Mazur, Mirosław Ziętkiewicz, Robert Gałązkowski, Łukasz Krzych, Rafał Drwiła
Fast and accurate measurement of core body temperature is crucial for accidental hypothermia treatment. We have developed a novel light and small adapter to the headset jack of a mobile phone based on Android. It has been applied to measure temperature and set up automatic notifications (e.g. Global Positioning System coordinates to emergency services dispatcher, ECMO coordinator). Its validity was confirmed in comparison with Vital Signs Monitor Spacelabs Healthcare Elance 93300 as a reference method, in a series of 260 measurements in the temperature range of 10-42 °C...
December 24, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28012013/ventilation-perfusion-ratio-and-right-to-left-shunt-in-healthy-newborn-infants
#12
Theodore Dassios, Kamal Ali, Thomas Rossor, Anne Greenough
Oxygenation impairment can be assessed non-invasively by determining the degree of right-to-left shunt and ventilation/perfusion (VA/Q) inequality. These indices have been used in sick newborn infants, but normative values have not been reported which are essential to determine the magnitude of the abnormality. We, therefore, aimed to measure the shunt and VA/Q in infants with no history of respiratory conditions and determine if there was any effect of supine or prone position and the reproducibility of the data...
December 23, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28012012/the-influence-of-peep-and-positioning-on-central-venous-pressure-and-venous-hepatic-hemodynamics-in-patients-undergoing-liver-resection
#13
Asi Ukere, Sebastian Meisner, Gillis Greiwe, Benjamin Opitz, Daniel Benten, Björn Nashan, Lutz Fischer, Constantin J C Trepte, Daniel A Reuter, Sebastian A Haas, Christoph R Behem
PURPOSE: In order to assess the occurrence of blood congestion in the liver during liver resection, we aimed to evaluate the influence of a positive-end-expiratory-pressure (PEEP) and positioning of patients on central venous pressure (CVP) and venous hepatic blood flow parameters. We further analyzed correlations between CVP and venous hepatic blood flow parameters. METHODS: In 20 patients scheduled for elective liver resection we measured CVP and quantified venous hepatic hemodynamics by ultrasound assessment of flow-velocity and diameter of the right hepatic vein and the portal vein after equilibration following these maneuvers: M1: 0° supine position, PEEP 0 cmH2O; M2: 0° supine position, PEEP 10 cmH2O; M3: 20° reverse-trendelenburg position; PEEP 10 cmH2O; M4: 20° reverse-trendelenburg position, PEEP 0cmH2O...
December 23, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28000041/continuous-blood-pressure-monitoring-via-non-invasive-radial-artery-applanation-tonometry-and-invasive-arterial-catheter-demonstrates-good-agreement-in-patients-undergoing-colon-carcinoma-surgery
#14
Jing Sun, Hanjian Chen, Jun Zheng, Bin Mao, Shengmei Zhu, Jingyi Feng
PURPOSE: Radial artery applanation tonometry (RAAT) has been developed and utilized for continuous arterial pressure monitoring. However, evidence is lacking to clinically verify the RAAT technology and identify appropriate patient groups before routine clinical use. This study aims to evaluate the RAAT technology by comparing systolic blood pressure (SBP), mean blood pressure (MBP) and diastolic blood pressure (DBP) values in patients undergoing colon carcinoma surgery. METHODS: Blood Pressure (BP) values obtained via RAAT (TL-300, Tensys Medical Inc...
December 20, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28000040/a-monitor-for-cellular-oxygen-metabolism-comet-monitoring-tissue-oxygenation-at-the-mitochondrial-level
#15
Rinse Ubbink, Mark A Wefers Bettink, Rineke Janse, Floor A Harms, Tanja Johannes, F Michael Münker, Egbert G Mik
After introduction of the protoporphyrin IX-triplet state lifetime technique as a new method to measure mitochondrial oxygen tension in vivo, the development of a clinical monitor was started. This monitor is the "COMET", an acronym for Cellular Oxygen METabolism. The COMET is a non-invasive electrically powered optical device that allows measurements on the skin. The COMET is easy to transport, due to its lightweight and compact size. After 5-aminolevulinic acid application on the human skin, a biocompatible sensor enables detection of PpIX in the mitochondria...
December 20, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27987104/phenylephrine-increases-near-infrared-spectroscopy-determined-muscle-oxygenation-in-men
#16
H Sørensen, J H Thomsen, A S P Meyer, D Terzic, L Hilsted, J Kjærgaard, J P Goetze, T C Barbosa, N H Secher
Phenylephrine increases mean arterial pressure (MAP) by enhanced total peripheral resistance (TPR) but near-infrared spectroscopy (NIRS) determined muscle oxygenation (SmO2) increases. We addressed that apparent paradox during supine rest and head-up tilt (HUT). Variables were determined ± phenylephrine in males during supine rest (n = 17) and 40° HUT (n = 7). MAP, stroke volume (SV), heart rate (HR), and TPR were derived by Modelflow(®) and NIRS determined biceps SmO2 and (tibial) bone oxygenation (StibialO2)...
December 16, 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27889843/a-randomized-comparison-of-the-ambu-auragain-versus-the-lma-supreme-in-patients-undergoing-gynaecologic-laparoscopic-surgery
#17
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
#18
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
#19
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
#20
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
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