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Journal of Clinical Monitoring and Computing

Jonghyun Park, Seungman Yang, Ji-Hyun Lee, Jin-Tae Kim, Hee-Soo Kim, Hee Chan Kim
Predicting fluid responsiveness is crucial for adequate fluid management. Respiratory variations in pulse oximetry plethysmographic waveform amplitude (ΔPOP) are used to predict fluid responsiveness, but show inconsistent results when used for children. Contacting force between the measurement site and sensor can affect the ΔPOP value, thereby hindering its reliability as an indicator. We studied the influence of contacting force on the efficacy of ΔPOP as a fluid responsiveness indicator in children. In total, 43 mechanically ventilated children aged 1 month-5 years were studied...
July 14, 2018: Journal of Clinical Monitoring and Computing
Paul Jasiukaitis, Russ Lyon
This report presents a method for tracking Motor Evoked Potential (MEP) amplitudes over the course of a case using a moving least squares linear regression (LSMAs). During a case, newly obtained MEP amplitudes are compared to those predicted by a just previous linear regression (least squares moving average or LSMA). When detected by this comparison, a set criterion amplitude loss will then trigger linear regression of ensuing MEP amplitudes on an expanding step function which tracks the persistence of the amplitude loss for the remainder of the case...
July 13, 2018: Journal of Clinical Monitoring and Computing
Michael T Kuntz, Roman Dudaryk, Richard R McNeer
Injection ports used to administer medications and draw blood samples have inherent dead-volume. This volume can potentially lead to inadvertent drug administration, contribute to erroneous laboratory values by dilution of blood samples, and increase the risk of vascular air embolism. We sought to characterize provider practice in management of intravenous (IV) and arterial lines and measure dead-volumes of various injection ports. A survey was circulated to anesthesiology physicians and nurses to determine practice habits when administering medications and drawing blood samples...
July 10, 2018: Journal of Clinical Monitoring and Computing
Hessam H Kashani, Hilary P Grocott
No abstract text is available yet for this article.
July 4, 2018: Journal of Clinical Monitoring and Computing
Wei-Nung Teng, Chien-Kun Ting, Yu-Tzu Wang, Kuang-Yao Yang, Mei-Yung Tsou, Joseph A Orr, Kyle M Burk, Huihua Chiang, Chun-Li Lin
Drug-induced respiratory depression is a major cause of serious adverse events. Adequate oxygenation is very important during sedated esophagogastroduodenoscopy (EGD). Nasal breathing often shifts to oral breathing during open mouth EGD. A mandibular advancement bite block was developed for EGD using computer-assisted design and three-dimensional printing techniques. The mandible is advanced when using this bite block to facilitate airway opening. The device is composed of an oxygen inlet with one opening directed towards the nostril and another opening directed towards the oral cavity...
July 4, 2018: Journal of Clinical Monitoring and Computing
Mathieu Jozwiak, Steffen Rex, Karim Bendjelid
No abstract text is available yet for this article.
June 29, 2018: Journal of Clinical Monitoring and Computing
Christopher L Pysyk, Robert Jee, Ian Zunder
Following introduction of an Anesthesia Information Management System (AIMS) at a tertiary care, academic health sciences centre, a quality assurance initiative was conducted to assess staff opinions of the AIMS using a previously published, anonymous survey tool at 1 and 5 years following AIMS introduction. At 5 years compared to 1 year after implementation of AIMS, the majority (18 of 24, 75%) of responses to the survey questions had a statistically significant change (P < 0.05) in the proportion of respondents favoring AIMS compared to the 1 year survey...
June 28, 2018: Journal of Clinical Monitoring and Computing
Mingzhe Jiang, Riitta Mieronkoski, Elise Syrjälä, Arman Anzanpour, Virpi Terävä, Amir M Rahmani, Sanna Salanterä, Riku Aantaa, Nora Hagelberg, Pasi Liljeberg
Current acute pain intensity assessment tools are mainly based on self-reporting by patients, which is impractical for non-communicative, sedated or critically ill patients. In previous studies, various physiological signals have been observed qualitatively as a potential pain intensity index. On the basis of that, this study aims at developing a continuous pain monitoring method with the classification of multiple physiological parameters. Heart rate (HR), breath rate (BR), galvanic skin response (GSR) and facial surface electromyogram were collected from 30 healthy volunteers under thermal and electrical pain stimuli...
June 26, 2018: Journal of Clinical Monitoring and Computing
Aline Defresne, Michael Harrison, François Clement, Luc Barvais, Vincent Bonhomme
Noxious stimulation influences the autonomic nervous system activity. Sympathetic tone monitoring is currently used to assess the adequacy of the balance between nociception and anti-nociception during general anesthesia. The Surgical Plethysmographic Index (SPI) and the EBMi software (Custos©) are commercial devices that use different algorithms to measure it. We aimed at determining whether those devices provide similar information during routine surgical procedures under general anesthesia. Data acquired during a previously published study in patients undergoing surgery under general anesthesia were retrospectively analyzed and passed through the EBMi software...
June 25, 2018: Journal of Clinical Monitoring and Computing
Yahya Hammad, Ahmed Hasanin, Ahmed Elsakka, Amira Refaie, Doaa Abdelfattah, Sherif Abdel Rahman, Marwa Zayed, Yasmin Hassabelnaby, Ahmed Mukhtar, Amina Omran
Acute pulmonary oedema is a serious complication of preeclampsia. Early detection of pulmonary edema in preeclampsia would improve fluid management and would also allow earlier detection of severe cases. The aim of this work is to evaluate the ability of thoracic fluid content measured by electrical cardiometry for early detection of pulmonary edema in parturients with preeclampsia. A prospective observational study included a cohort of preeclamptic parturients. On admission, lung ultrasound score was calculated, and thoracic fluid content was recorded using electrical cardiometry ICON device...
June 23, 2018: Journal of Clinical Monitoring and Computing
Christopher W Connor
The ability to monitor the inspired and expired concentrations of volatile anesthetic gases in real time makes these drugs implicitly targetable. However, the end-tidal concentration only represents the concentration within the brain and the vessel rich group (VRG) at steady state, and very poorly approximates the VRG concentration during common dynamic situations such as initial uptake and emergence. How should the vaporization of anesthetic gases be controlled in order to optimally target VRG concentration in clinical practice? Using a generally accepted pharmacokinetic model of uptake and redistribution, a transfer function from the vaporizer setting to the VRG is established and transformed to the time domain...
June 21, 2018: Journal of Clinical Monitoring and Computing
Jan Hendrickx, Jan Poelaert, Andre De Wolf
No abstract text is available yet for this article.
June 15, 2018: Journal of Clinical Monitoring and Computing
Takeshi Suzuki, Yuta Suzuki, Jun Okuda, Rie Minoshima, Yoshi Misonoo, Tomomi Ueda, Jungo Kato, Hiromasa Nagata, Takashige Yamada, Hiroshi Morisaki
Hemodynamic monitoring is mandatory for perioperative management of cardiac surgery. Recently, the estimated continuous cardiac output (esCCO) system, which can monitor cardiac output (CO) non-invasively based on pulse wave transit time, has been developed. Patients who underwent cardiovascular surgeries with hemodynamics monitoring using arterial pressure-based CO (APCO) were eligible for this study. Hemodynamic monitoring using esCCO and APCO was initiated immediately after intensive care unit admission. CO values measured using esCCO and APCO were collected every 6 h, and stroke volume variation (SVV) data were obtained every hour while patients were mechanically ventilated...
June 14, 2018: Journal of Clinical Monitoring and Computing
Sevim Cesur, Tülay Çardaközü, Alparslan Kuş, Neşe Türkyılmaz, Ömer Yavuz
Intraoperative fluid management is quite important in terms of postoperative organ perfusion and complications. Different fluid management protocols are in use for this purpose. Our primary goal was to compare the effects of conventional fluid management (CFM) with the Pleth Variability Index (PVI) guided goal-directed fluid management (GDFM) protocols on the amount of crystalloids administered, blood lactate, and serum creatinine levels during the intraoperative period. The length of hospital stay was our secondary goal...
June 14, 2018: Journal of Clinical Monitoring and Computing
J Mesquida, P Saludes, C Espinal, G Gruartmoner
No abstract text is available yet for this article.
June 12, 2018: Journal of Clinical Monitoring and Computing
Marit H N van Velzen, Robert Jan Stolker, Arjo J Loeve, Sjoerd P Niehof, Egbert G Mik
Arterial stiffness is a reliable prognostic parameter for cardiovascular diseases. The effect of change in arterial stiffness can be measured by the change of the pulse wave velocity (PWV). The Complior system is widely used to measure PWV between the carotid and radial arteries by means of piezoelectric clips placed around the neck and the wrist. The Biopac system is an easier to use alternative that uses ECG and simple optical sensors to measure the PWV between the heart and the fingertips, and thus extends a bit more to the peripheral vasculature compared to the Complior system...
June 6, 2018: Journal of Clinical Monitoring and Computing
Theodore Dassios, Kamal Ali, Thomas Rossor, Anne Greenough
No abstract text is available yet for this article.
June 6, 2018: Journal of Clinical Monitoring and Computing
Kiguna Sei, Masanori Fujita, Takeshi Hirasawa, Shinpei Okawa, Toshihiro Kushibiki, Hidenori Sasa, Kenichi Furuya, Miya Ishihara
The golden standard method to obtain accurate blood oxygen saturation is blood gas analysis that needs invasive procedure of blood sampling. Photoacoustic technique enables us to measure real-time blood oxygen saturation without invasive procedure. The aim of this study is to use the photoacoustic technique, an optical method, for accurately determining oxygen saturation in vivo. We measured induced photoacoustic signals of arterial blood in the rabbit model of stable hypoxemia after irradiation at 750 and 800 nm...
June 6, 2018: Journal of Clinical Monitoring and Computing
Charles Huanghong Du, David Glick, Avery Tung
Electronic medical records now store a wealth of intraoperative hemodynamic data. However, analysis of such data is plagued by artifacts related to the monitoring environment. Here, we present an algorithm for automated identification of artifacts and replacement using interpolation of arterial line blood pressures. After IRB approval, minute-by-minute digital recordings of systolic, diastolic, and mean arterial pressures (MAP) obtained during anesthesia care were analyzed using predetermined metrics to identify values anomalous from adjacent neighbors...
June 5, 2018: Journal of Clinical Monitoring and Computing
Hans Ulrich Schüler, Björn Goldbeck, David Karchner
No abstract text is available yet for this article.
May 31, 2018: Journal of Clinical Monitoring and Computing
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