Journal of clinical monitoring and computing
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J Clin Monit Comput · Apr 2015
A comprehensive operating room information system using the Kinect sensors and RFID.
Occasionally, surgeons do need various types of information to be available rapidly, efficiently and safely during surgical procedures. Meanwhile, they need to free up hands throughout the surgery to necessarily access the mouse to control any application in the sterility mode. In addition, they are required to record audio as well as video files, and enter and save some data. ⋯ There are also contextual interviews and usability satisfaction questionnaires conducted with the "MediNav" system to investigate how useful the proposed system could be. The results reveal that integration of these systems into a complete solution is the key to not only stream up data and workflow but maximize surgical team usefulness as well. It is now possible to comprehensively collect and visualize medical information, and access a management tool with a touch-less NUI in a rather quick, practical, and harmless manner.
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J Clin Monit Comput · Apr 2015
Digital resolution enhancement of intracardiac excitation maps during atrial fibrillation.
Atrial fibrillation (AF) is often successfully treated by catheter ablation. Those cases of AF that do not readily succumb to ablation therapy would benefit from improved methods for mapping the complex spatial patterns of tissue activation that typify recalcitrant AF. To this end, the purpose of our study was to investigate the use of numerical deconvolution to improve the spatial resolution of activation maps provided by 2-D arrays of intra-cardiac recording electrodes. ⋯ For both the synthetic data and the voltage-sensitive dye maps, we found that deconvolution led to visually improved map resolution for arrays of 10×10 up to 30×30 electrodes placed within a few mm of the atrial surface when the activation patterns included 3-4 features that spanned the recording area. Root mean square error was also reduced by deconvolution. Deconvolution of arrays of intracardiac potentials, preceded by appropriate interpolation and edge processing, leads to potentially useful improvements in map resolution that may allow more effective assessment of the spatiotemporal dynamics of tissue excitation during AF.
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J Clin Monit Comput · Apr 2015
ReviewIntrathecal drug delivery for chronic pain management-scope, limitations and future.
Intrathecal drug delivery system (IDDS) is a targeted therapy system for treating pain and muscle spasm. IDDS is recommended for the treatment of chronic pain which does not respond to optimal medical management. The aim of this review article is to give an up to date and concise account of the use of IDDS. ⋯ IDDS is an invasive technique, which can result in severe morbidity and mortality. The up to date knowledge gained from this article along with the recommendations for improving safety in patients receiving IDDS, makes it a valuable resource for healthcare practitioners. Continued research, including outcome studies of this therapy continues to be necessary.
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J Clin Monit Comput · Apr 2015
Clinical TrialEstimation of shunt fraction by transesophageal echocardiography during one-lung ventilation.
As the blood flow volume in non-dependent lung composed the primary part of the intrapulmonary shunt during one-lung ventilation (OLV), the shunt fraction (SF) during OLV can be represented by the ratio of blood flow volume in non-dependent lung to the bilateral lung. The purpose of this study is to estimate the shunt in non-dependent lung by transesophageal echocardiography (TEE). Fifteen adult patients requiring OLV for thoracic surgery were enrolled in the study. ⋯ There was significant liner correlation between SF and PaO2 (r=0.717), and between BFP and PaO2 (r=0.593). It is feasible to estimate intrapulmonary shunt by TEE in anesthetized patients undergoing OLV. SF measured by TEE has significant correlation with PaO2, and it would expected to be used to predict hypoxemia during OLV.
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J Clin Monit Comput · Apr 2015
Observational StudyThe evaluation of a non-invasive respiratory volume monitor in surgical patients undergoing elective surgery with general anesthesia.
Continuous respiratory assessment is especially important during post-operative care following extubation. Respiratory depression and subsequent adverse outcomes can arise due to opioid administration and/or residual anesthetics. A non-invasive respiratory volume monitor (RVM) has been developed that provides continuous, real-time, measurements of minute ventilation (MV), tidal volume (TV), and respiratory rate (RR) via a standardized set of thoracic electrodes. ⋯ The average RR difference was -0.22 breaths/minute (bias: -1.8%, precision: 3.7% accuracy: 4.1%). Correlations between the RVM traces and the ventilator were compared at various points with correlations>0.90 throughout. Pairing the close correlation to ventilator measurements in intubated patients demonstrated by this study with previously described accuracy compared to spirometry in non-intubated patients, the RVM can be considered to have the capability to provide continuity of ventilation monitoring post-extubation This supports the use of real-time continuous RVM measurements to drive post-operative and post-extubation protocols, initiate therapeutic interventions and improve patient safety.