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Journal of Clinical Monitoring and Computing

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https://www.readbyqxmd.com/read/28508148/thermographic-skin-temperature-measurement-compared-with-cold-sensation-in-predicting-the-efficacy-and-distribution-of-epidural-anesthesia
#1
Arnoud A Bruins, Kay R J Kistemaker, Annemieke Boom, John H G M Klaessens, Rudolf M Verdaasdonk, Christa Boer
Due to the high rates of epidural failure (3-32%), novel techniques are required to objectively assess the successfulness of an epidural block. In this study we therefore investigated whether thermographic temperature measurements have a higher predictive value for a successful epidural block when compared to the cold sensation test as gold standard. Epidural anesthesia was induced in 61 patients undergoing elective abdominal, thoracic or orthopedic surgery. A thermographic picture was recorded at 5, 10 and 15 min following epidural anesthesia induction...
May 15, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28502060/comparison-of-univent-tube-and-ez-blocker-in-one-lung-ventilation-airway-pressures-and-gas-exchange
#2
Tülay Hoşten, Can Aksu, Alparslan Kuş, Sevim Cesur, Neşe Türkyılmaz, Mine Solak
Univent tube (UT) and EZ-blocker were used for one-lung ventilation (OLV). UT is a single lumen tube with a small separate lumen containing a bronchial blocker. EZ-blocker differs with its unique y-shaped double-cuffed distal end. We aimed to compare these two airway devices effects on airway pressures, oxygenation, ventilation and haemodynamics during OLV. Patients undergoing elective thoracotomy for the first time were included in this prospective randomized study. Patients were divided into two groups as UT and EZ...
May 13, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28497180/performance-of-a-capnodynamic-method-estimating-effective-pulmonary-blood-flow-during-transient-and-sustained-hypercapnia
#3
Thorir Svavar Sigmundsson, Tomas Öhman, Magnus Hallbäck, Eider Redondo, Fernando Suarez Sipmann, Mats Wallin, Anders Oldner, Caroline Hällsjö Sander, Håkan Björne
The capnodynamic method is a minimally invasive method continuously calculating effective pulmonary blood flow (COEPBF), equivalent to cardiac output when intra pulmonary shunt flow is low. The capnodynamic equation joined with a ventilator pattern containing cyclic reoccurring expiratory holds, provides breath to breath hemodynamic monitoring in the anesthetized patient. Its performance however, might be affected by changes in the mixed venous content of carbon dioxide (CvCO2). The aim of the current study was to evaluate COEPBF during rapid measurable changes in mixed venous carbon dioxide partial pressure (PvCO2) following ischemia-reperfusion and during sustained hypercapnia in a porcine model...
May 11, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28488169/cerebral-oxygen-desaturation-occurs-frequently-in-patients-with-hypertension-undergoing-major-abdominal-surgery
#4
Hongyi Li, Qiaochu Fu, Zongfang Wu, Jiaoli Sun, Anne Manyande, Hui Yang, Peng Wang
Hypertensive patients are more likely to experience latent cerebral ischemia causing regional cerebral oxygen saturation (rSO2) decrease during general anesthesia. The aim of this prospective observational study was to assess the incidence of decreased rSO2 in hypertensive patients undergoing major abdominal surgery and the perioperative factors affecting this change in rSO2. A total of 41 hypertensive patients were enrolled and stratified according to their hypertension as controlled and uncontrolled. The intraoperative rSO2 and physiological data were routinely collected...
May 9, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28466203/efficiency-of-oxygen-delivery-through-different-oxygen-entrainment-devices-during-sedation-under-low-oxygen-flow-rate-a-bench-study
#5
Wei-Chih Hsu, Joe Orr, Shih-Pin Lin, Lu Yu, Mei-Yung Tsou, Dwayne R Westenskow, Chien-Kun Ting
Sedative anesthetic procedures outside the operating room may depend on cylinders as oxygen source. Cylinders have limited storage capacity and a low oxygen flow rate improves the durability. We conducted the bench study to evaluate the fraction of inspired oxygen (FiO2) in different oxygen entrainment devices under low oxygen flow rate. The purpose of the bench study was to provide information to choose appropriate oxygen entrainment devices in non-operating room sedative anesthetic procedures. We utilized a manikin head-test lung-ventilator model and evaluated eight oxygen entrainment devices, including four nasal cannulas, two oral bite blocks, and two masks...
May 2, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28466202/four-wavelength-near-infrared-peripheral-oximetry-in-cardiac-surgery-patients-a-comparison-between-equanox-and-o3
#6
Arnaud Ferraris, Matthias Jacquet-Lagrèze, Jean-Luc Fellahi
Near-infrared spectroscopy (NIRS) is a continuous and noninvasive technology that measures regional tissue oxygen saturation (rSO2). A new 4-wavelength generation of NIRS monitors is now available. We aimed to compare peripheral somatic rSO2 values given by the 4-wavelength EQUANOX™ 7600 device (Nonin Medical Inc., Plymouth, Mn) and O3™ device (Masimo Corporation, Irvine, CA). Twenty adult patients scheduled for conventional elective cardiac surgery with cardiopulmonary bypass over a 4-month period were included after local Ethics Committee approval...
May 2, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28455779/microvascular-reactivity-measured-by-vascular-occlusion-test-is-an-independent-predictor-for-postoperative-bleeding-in-patients-undergoing-cardiac-surgery
#7
Karam Nam, Hyung-Min Oh, Chang-Hoon Koo, Tae Kyong Kim, Youn Joung Cho, Deok Man Hong, Yunseok Jeon
The purpose of the study is to investigate the relationship between microvascular reactivity and postoperative bleeding in cardiac surgery. The authors retrospectively analyzed a prospectively collected registry of cardiac surgery patients. Data from 154 patients enrolled in the registry were analyzed. A linear mixed model was performed to evaluate the association between the amount of postoperative chest tube output (CTO, milliliter, repeatedly measured at 0-8, 8-24, and 24-48 h) and tissue oxygen saturation (StO2) recovery slope (%/s) measured by vascular occlusion test (VOT) at skin closure...
April 28, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28432561/predicting-fluid-responsiveness-in-whom-a-simulated-example-of-patient-spectrum-influencing-the-receiver-operating-characteristics-curve
#8
Lars Øivind Høiseth, Jostein S Hagemo
The influence of patient spectrum on the sensitivities and specificities of diagnostic methods has been termed spectrum bias or spectrum effect. Receiver operating characteristics curves are often used to assess the ability of diagnostic methods to predict fluid responsiveness. As a receiver operating characteristics curve is a presentation of sensitivity and specificity, the purpose of the present manuscript was to explore if patient spectrum could affect areas under receiver operating characteristics curves and their gray zones...
April 21, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28424933/fact-and-controversies-when-assessing-fluid-responsiveness
#9
EDITORIAL
Karim Bendjelid
No abstract text is available yet for this article.
April 19, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28389913/real-time-evaluation-of-an-image-analysis-system-for-monitoring-surgical-hemoglobin-loss
#10
Gerhardt Konig, Jonathan H Waters, Mazyar Javidroozi, Bridget Philip, Vicki Ting, Gaurav Abbi, Eric Hsieh, Griffeth Tully, Gregg Adams
Monitoring blood loss is important for management of surgical patients. This study reviews a device (Triton) that uses computer analysis of a photograph to estimate hemoglobin (Hb) mass present on surgical sponges. The device essentially does what a clinician does when trying to make a visual estimation of blood loss by looking at a sponge, albeit with less subjective variation. The performance of the Triton system is reported upon in during real-time use in surgical procedures. The cumulative Hb losses estimated using the Triton system for 50 enrolled patients were compared with reference Hb measurements during the first quarter, half, three-quarters and full duration of the surgery...
April 7, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28378266/comparison-of-forced-air-warming-systems-in-prevention-of-intraoperative-hypothermia
#11
Volkan Alparslan, Alparslan Kus, Tulay Hosten, Mehmet Ertargin, Dilek Ozdamar, Kamil Toker, Mine Solak
In this study, we aimed to compare the effects of forced-air warming upper body blankets and forced-air warming underbody blankets on intraoperative hypothermia in patients who were planned to undergo open abdominal surgical operations in which extensive heat loss occurs. This prospective and randomized study included 92 patients who would undergo lower abdominal surgery under general anesthesia. Patients were randomized by closed envelope method and divided into two groups. Group I (n:46) included the patients who would receive warming with forced-air warming upper body blanket, and Group II (n:46) consisted of the patients who received warming with forced-air warming underbody blanket...
April 4, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28374103/a-validation-method-for-near-infrared-spectroscopy-based-tissue-oximeters-for-cerebral-and-somatic-tissue-oxygen-saturation-measurements
#12
Paul B Benni, David MacLeod, Keita Ikeda, Hung-Mo Lin
We describe the validation methodology for the NIRS based FORE-SIGHT ELITE(®) (CAS Medical Systems, Inc., Branford, CT, USA) tissue oximeter for cerebral and somatic tissue oxygen saturation (StO2) measurements for adult subjects submitted to the United States Food and Drug Administration (FDA) to obtain clearance for clinical use. This validation methodology evolved from a history of NIRS validations in the literature and FDA recommended use of Deming regression and bootstrapping statistical validation methods...
April 3, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28299589/respiratory-variation-in-peak-aortic-velocity-accurately-predicts-fluid-responsiveness-in-children-undergoing-neurosurgery-under-general-anesthesia
#13
Kavita G Morparia, Srijaya K Reddy, Laura J Olivieri, Michael C Spaeder, Jennifer J Schuette
The determination of fluid responsiveness in the critically ill child is of vital importance, more so as fluid overload becomes increasingly associated with worse outcomes. Dynamic markers of volume responsiveness have shown some promise in the pediatric population, but more research is needed before they can be adopted for widespread use. Our aim was to investigate effectiveness of respiratory variation in peak aortic velocity and pulse pressure variation to predict fluid responsiveness, and determine their optimal cutoff values...
March 16, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28293809/a-mesenteric-traction-syndrome-affects-near-infrared-spectroscopy-evaluated-cerebral-oxygenation-because-skin-blood-flow-increases
#14
Niels D Olesen, Henrik Sørensen, Rikard Ambrus, Lars B Svendsen, Anton Lund, Niels H Secher
During abdominal surgery manipulation of internal organs may induce a "mesenteric traction syndrome" (MTS) including a triad of flushing, hypotension, and tachycardia that lasts for about 30 min. We evaluated whether MTS affects near-infrared spectroscopy (NIRS) assessed frontal lobe oxygenation (ScO2) by an increase in forehead skin blood flow (SkBF). The study intended to include 10 patients who developed MTS during pancreaticoduodenectomy and 22 patients were enrolled (age 61 ± 8 years; mean ± SD)...
March 14, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28293808/low-pre-operative-heart-rate-variability-and-complexity-are-associated-with-hypotension-after-anesthesia-induction-in-major-abdominal-surgery
#15
James R Padley, Erez Ben-Menachem
Significant hypotension after induction of general anesthesia is common and has the potential for serious complications. This study aimed to determine if pre-operative heart rate variability (HRV) was associated with post-induction hypotension in patients undergoing major abdominal surgery. Patients undergoing semi-elective major abdominal surgery were consecutively recruited during pre-admission clinic assessment. Exclusion criteria included cardiac conduction disease, arrhythmias or severe liver or renal disease...
March 14, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28283852/short-term-general-anesthesia-for-retro-bulbar-block-in-ophthalmic-surgery-generates-no-significant-hypercapnia
#16
Werner Baulig, Monica Weber, Beatrice Beck-Schimmer, Oliver M Theusinger, Peter Biro
To assess the impact of short time hypnosis for retro-bulbar anesthesia on ventilation in patients undergoing ophthalmic surgery of the anterior eye chamber. In all patients, a combined continuous transcutaneous carbon dioxide tension (PtcCO2) and partial oxygen saturation (SpO2) measurement was applied in addition to routine monitoring. To enable unconscious application of retro-bulbar anesthesia, intravenous thiopental was given in one to multiple bolus doses. Transient breathing support included chin lift, Esmarch maneuver and manual hand-bag ventilation via face mask...
March 11, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28281192/reliability-of-thermodilution-derived-cardiac-output-with-different-operator-characteristics
#17
Scott C McKenzie, Kimble Dunster, Wandy Chan, Martin R Brown, David G Platts, George Javorsky, Chris Anstey, Shaun D Gregory
Cardiac output (CO) is commonly measured using the thermodilution technique at the time of right heart catheterisation (RHC). However inter-operator variability, and the operator characteristics which may influence that, has not been quantified. Therefore, this study aimed to assess inter-operator variability with the thermodilution technique using a mock circulation loop (MCL) with calibrated flow sensors. Participants were blinded and asked to determine 4 levels of CO using the thermodilution technique, which was compared with the MCL calibrated flow sensors...
March 9, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28275978/infrared-pupillometry-helps-to-detect-and-predict-delirium-in-the-post-anesthesia-care-unit
#18
Eric Yang, Matthias Kreuzer, September Hesse, Paran Davari, Simon C Lee, Paul S García
This study evaluates the capability of pupillary parameters to detect and predict delirium in the post-anesthesia care unit (PACU-D) following general anesthesia. PACU-D may complicate and prolong the patient's postoperative course, consequently increasing hospital costs. After institutional approval, 47 patients undergoing surgical interventions with general anesthesia were included in the study. We measured the pupillary reflexes at signing of informed consent, during surgery 20 min after intubation and when the primary inhaled anesthetic was turned off, and 15 and 45 min after PACU admittance and upon discharge from the PACU...
March 8, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28271314/the-abstracts-of-the-26th-congress-of-esctaic-timisoara-romania-september-22-24-2016
#19
(no author information available yet)
No abstract text is available yet for this article.
March 7, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28258341/low-near-infrared-spectroscopic-somatic-oxygen-saturation-at-admission-is-associated-with-need-for-lifesaving-interventions-among-unplanned-admissions-to-the-pediatric-intensive-care-unit
#20
Binod Balakrishnan, Mahua Dasgupta, Kim Gajewski, Raymond G Hoffmann, Pippa M Simpson, Peter L Havens, Sheila J Hanson
To investigate the association between low near infrared spectroscopy (NIRS) somatic oxygen saturation (<70%) at admission and the need for lifesaving interventions (LSI) in the initial 24 h of a PICU admission. Retrospective chart review of all unplanned admissions to the pediatric intensive care unit (PICU) with NIRS somatic oxygen saturation data available within 4 h of admission, excluding admissions with a cardiac diagnosis. LSI data were collected for the first 24 h after admission. Hemodynamic parameters, laboratory values, illness severity scores and diagnoses were collected...
March 3, 2017: Journal of Clinical Monitoring and Computing
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