The Experts below are selected from a list of 45618 Experts worldwide ranked by ideXlab platform
Lucas B. Chartier - One of the best experts on this subject based on the ideXlab platform.
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P034: Pediatric emergency department return visits: a Proactive Approach to quality improvement
CJEM, 2017Co-Authors: Olivia Ostrow, Andrea Shim, Syed Khurram Azmat, Lucas B. ChartierAbstract:Introduction: Emergency Department (ED) return visits leading to admission (RVs) are a well-recognized quality metric that can potentially signal gaps in patient care. Routine capture, investigation and monitoring of monthly ED RVs provides a better understanding of patient and visit- level factors associated with a return, which can then inform system-level quality improvement (QI) opportunities. The objective of this study is to develop a sustainable database that routinely tracks and analyzes pediatric ED RVs in a large Canadian children’s hospital to understand recurring themes and inform QI initiatives. Methods: Using a computerized record system, all 72-hour RVs are collected and reviewed for patient and visit-level variables. Clinicians receive monthly notification of their RVs and assist with completing root cause analyses. Ongoing cumulative analyses using descriptive statistics and t-test analysis are reviewed to identity trends and predictors of RVs. Targeted solutions are sought to address system-level themes through educational, quality, safety and administrative avenues. Results: The RV database contains almost three years of data analyzing approximately 1,500 cases, equaling 0.75% of our annual ED patient volumes. RVs have higher acuity scores on both their index and return visit (P=0.001) and children under 12 months of age have significantly higher rates of return (24% vs 16%, P<0.001). A consultation service was involved during 31% of the index ED visits, with the top three consultants being Hematology/Oncology (23%), General Surgery (12%), and Neurology (8%). The root cause of the majority of RVs were related to disease progression (65%), while 8% were call-backs for positive blood cultures or discrepant results, and 6% were categorized as a misdiagnoses. Completed quality improvement initiatives to date include the ED Sickle Cell Optimization Program, the Culture Follow-up and Escalation Algorithm, and the Young Infant Fever Pathway and Order Set. Conclusion: Routine monitoring and investigation of ED RVs provides a Proactive Approach to seeking improvement opportunities. With a better understanding of specific patient and visit-level factors associated with RVs, future system-level quality improvement initiatives can be targeted.
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PEDIATRIC EMERGENCY DEPARTMENT RETURN VISITS: A Proactive Approach TO QUALITY IMPROVEMENT
BMJ Quality & Safety, 2016Co-Authors: Olivia Ostrow, Andrea Shim, Syed Khurram Azmat, Lucas B. ChartierAbstract:Background Emergency Department (ED) return visits leading to admission (RVs) are a well-recognized quality metric that can potentially signal gaps in care. Through capture and investigation, potential learning for future improvements are possible. Objectives To develop a sustainable database that routinely tracks and analyzes pediatric ED RVs in the largest children9s hospital in Canada to understand recurring themes and inform QI initiatives. Methods All 72-hour RVs are collected and reviewed for patient and visit-level variables. Clinicians receive monthly notification of their RVs and assist with completing root cause analyses. Ongoing cumulative analyses using descriptive statistics and t-test analysis are reviewed to identity trends and predictors of RVs. Targeted solutions are sought to address system-level themes. Results Our RV database contains over 2.5 years of data analyzing 1,300 cases, equaling 0.75% of annual ED patient volumes. RVs have higher acuity scores on both their index and return visit (P=0.001) and children under 12 months of age have significantly higher rates of return (24% vs 16%, P Conclusions Routine monitoring and investigation of ED RVs provides a Proactive Approach to seeking improvement opportunities. With a better understanding of specific patient and visit-level factors associated with RVs, future system-level quality improvement initiatives can be targeted.
Stephane Maag - One of the best experts on this subject based on the ideXlab platform.
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A Proactive Approach for strip interoperability in wireless Ad hoc routing protocols
IEEE Latin America Transactions, 2016Co-Authors: Marco Antonio To De Leon, Oscar Rolando Rodas Hernandez, Preng Biba, Stephane MaagAbstract:Wireless ad hoc networks have become increasingly popular due to the numerous applications they can provide, spawning dozens of routing protocols, in order to cope with the demand. To name a few examples, there are Wireless Mesh Networks, Vehicular Networks and Mobile Ad hoc Networks. This work studies the interoperability for wireless ad hoc routing protocols. Interoperability works in such a way that two or more distinct networks, can relay messages to a neighbour network, even if they are running different routing protocols. Our proposal focuses on a Proactive Approach for the Strip Interoperability mechanism, which has proven to bridge heterogeneous networks using only layer 3 protocols. Moreover, a comparison is performed with the previous mechanism through a Case Study, which delivers an improvement over network metrics. The testbed runs on Ubuntu Linux and wireless ad hoc routing protocols implementations of OLSR and BMX6, both using IPv6 and related protocols
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A Proactive Approach for strip interoperability in wireless Ad hoc routing protocols
2015Co-Authors: Marco Antonio To De Leon, Oscar Rolando Rodas Hernandez, Preng Biba, Stephane MaagAbstract:The topic of Interoperability between different routing protocols in wireless ad hoc networks is still an ongoing effort due to the numerous applications these types of networks can provide. In a wireless world with an increasing demand for mobility, wireless ad hoc networks and its derivatives, wireless mesh networks, wireless sensor networks and mobile ad hoc networks (MANETs), can benefit greatly from adjacent or passing through mobile networks. The problem of nodes using different routing protocols is studied in this work. We propose the use of a Proactive Approach for the Strip Interoperability mechanism which has proven to bridge heterogeneous networks using only layer 3 protocols. Moreover, a comparison is made with the previous mechanism through a Case Study, which delivers an improvement over network metrics. The testbed runs in real world OSs (Ubuntu Linux) and wireless ad hoc routing protocols implementations of OLSR and BMX6, both using IPv6 as a layer 3 protocol.
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LATINCOM - A Proactive Approach for strip interoperability in wireless ad hoc routing protocols
2015 7th IEEE Latin-American Conference on Communications (LATINCOM), 2015Co-Authors: Oscar Rodas, Preng Biba, Stephane MaagAbstract:Wireless ad hoc networks have become increasingly popular due to the numerous applications they can provide, spawning dozens of routing protocols, in order to cope with the demand. To name a few examples, there are Wireless Mesh Networks, Vehicular Networks and Mobile Ad hoc Networks. This work focuses on the interoperability for wireless ad hoc routing protocols. Interoperability works in such a way that two or more distinct networks, can relay messages to a neighbour network, even if they are running different routing protocols. Our proposal focuses on a Proactive Approach for the Strip Interoperability mechanism, which has proven to bridge heterogeneous networks using only layer 3 protocols. Moreover, a comparison is performed with the previous mechanism through a Case Study, which delivers an improvement over network metrics. The testbed runs on Ubuntu Linux and wireless ad hoc routing protocols implementations of OLSR and BMX6, both using IPv6 and related protocols.
Olivia Ostrow - One of the best experts on this subject based on the ideXlab platform.
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P034: Pediatric emergency department return visits: a Proactive Approach to quality improvement
CJEM, 2017Co-Authors: Olivia Ostrow, Andrea Shim, Syed Khurram Azmat, Lucas B. ChartierAbstract:Introduction: Emergency Department (ED) return visits leading to admission (RVs) are a well-recognized quality metric that can potentially signal gaps in patient care. Routine capture, investigation and monitoring of monthly ED RVs provides a better understanding of patient and visit- level factors associated with a return, which can then inform system-level quality improvement (QI) opportunities. The objective of this study is to develop a sustainable database that routinely tracks and analyzes pediatric ED RVs in a large Canadian children’s hospital to understand recurring themes and inform QI initiatives. Methods: Using a computerized record system, all 72-hour RVs are collected and reviewed for patient and visit-level variables. Clinicians receive monthly notification of their RVs and assist with completing root cause analyses. Ongoing cumulative analyses using descriptive statistics and t-test analysis are reviewed to identity trends and predictors of RVs. Targeted solutions are sought to address system-level themes through educational, quality, safety and administrative avenues. Results: The RV database contains almost three years of data analyzing approximately 1,500 cases, equaling 0.75% of our annual ED patient volumes. RVs have higher acuity scores on both their index and return visit (P=0.001) and children under 12 months of age have significantly higher rates of return (24% vs 16%, P<0.001). A consultation service was involved during 31% of the index ED visits, with the top three consultants being Hematology/Oncology (23%), General Surgery (12%), and Neurology (8%). The root cause of the majority of RVs were related to disease progression (65%), while 8% were call-backs for positive blood cultures or discrepant results, and 6% were categorized as a misdiagnoses. Completed quality improvement initiatives to date include the ED Sickle Cell Optimization Program, the Culture Follow-up and Escalation Algorithm, and the Young Infant Fever Pathway and Order Set. Conclusion: Routine monitoring and investigation of ED RVs provides a Proactive Approach to seeking improvement opportunities. With a better understanding of specific patient and visit-level factors associated with RVs, future system-level quality improvement initiatives can be targeted.
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PEDIATRIC EMERGENCY DEPARTMENT RETURN VISITS: A Proactive Approach TO QUALITY IMPROVEMENT
BMJ Quality & Safety, 2016Co-Authors: Olivia Ostrow, Andrea Shim, Syed Khurram Azmat, Lucas B. ChartierAbstract:Background Emergency Department (ED) return visits leading to admission (RVs) are a well-recognized quality metric that can potentially signal gaps in care. Through capture and investigation, potential learning for future improvements are possible. Objectives To develop a sustainable database that routinely tracks and analyzes pediatric ED RVs in the largest children9s hospital in Canada to understand recurring themes and inform QI initiatives. Methods All 72-hour RVs are collected and reviewed for patient and visit-level variables. Clinicians receive monthly notification of their RVs and assist with completing root cause analyses. Ongoing cumulative analyses using descriptive statistics and t-test analysis are reviewed to identity trends and predictors of RVs. Targeted solutions are sought to address system-level themes. Results Our RV database contains over 2.5 years of data analyzing 1,300 cases, equaling 0.75% of annual ED patient volumes. RVs have higher acuity scores on both their index and return visit (P=0.001) and children under 12 months of age have significantly higher rates of return (24% vs 16%, P Conclusions Routine monitoring and investigation of ED RVs provides a Proactive Approach to seeking improvement opportunities. With a better understanding of specific patient and visit-level factors associated with RVs, future system-level quality improvement initiatives can be targeted.
Ji-seung Nam - One of the best experts on this subject based on the ideXlab platform.
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Overlay multicast tree recovery scheme using a Proactive Approach
Computer Communications, 2008Co-Authors: Jin-han Jeon, Seung-chul Son, Ji-seung NamAbstract:Overlay multicast scheme has been regarded as an alternative to conventional IP multicast since it can support multicast functions without infrastructural level changes. However, multicast tree reconstruction procedure is required when a non-leaf node fails or leaves. In this paper, we propose a Proactive Approach to solve the aforementioned defect of overlay multicast scheme by using a resource reservation of some nodes' out-degrees in the tree construction procedure. In our proposal, a Proactive route maintenance Approach makes it possible to shorten recovery time from parent node's abrupt failure. The simulation results show that proposed Approach takes less time than the existing works to reconstruct a similar tree and that it is a more effective way to deal with more nodes that have lost their parent nodes due to failure.
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A Proactive Approach to Reconstructing Overlay Multicast Trees using Resource Reservation
The Journal of Korean Institute of Communications and Information Sciences, 2006Co-Authors: Kwon Heo, Suung-chul Son, Kyung-hoon Kim, Ho-young Song, Ji-seung NamAbstract:Overlay Multicast is an effective method for efficient utilization of system resources and network bandwidth without using hardware customization. Unlike in IP multicast, multicast tree reconstruction is required when non-leaf node leaves or fails. In this paper, we propose a Proactive Approach to solve this defect by using a resource reservation of the out degrees. This allows children of non-leaf node to connect to its new parent node immediately when its parent node leaves or fails. In our proposal, a Proactive route maintenance gives a fast recovery time and reduces a delay effect in the new route. The simulation results show that our proposal takes shorter period of time than the other algorithms to reconstruct a similar tree and that it is a more effective way to deal with a lot of nodes that have lost their parent nodes.
Zongming Fei - One of the best experts on this subject based on the ideXlab platform.
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a Proactive Approach to reconstructing overlay multicast trees
International Conference on Computer Communications, 2004Co-Authors: Mengkun Yang, Zongming FeiAbstract:Overlay multicast constructs a multicast delivery tree among end hosts. Unlike traditional IP multicast, the non-leaf nodes in the tree are normal end hosts, which are potentially more susceptible to failures than routers and may leave the multicast group voluntarily. In these cases, all downstream nodes are affected. Thus an important problem in overlay multicast is how to recover from node departures in order to minimize the disruption of service to those affected nodes. In this paper, we propose a Proactive Approach to restore overlay multicast trees. Rather than letting downstream nodes try to find a new parent after a node departure, each non-leaf node pre-calculates a parent-to-be for each of its children. When this non-leaf node is gone, all its children can find their respective new parents immediately. The salient feature of the Approach is that each non-leaf node can compute a rescue plan for its children independently, and in most cases, rescue plans from multiple non-leaf nodes can work together for their children when they fail or leave at the same time. We develop a protocol for nodes to communicate with new parents so that the delivery tree can be quickly restored. Extensive simulations demonstrate that our Proactive Approach can recover from node departures 5 times faster than reactive methods in some cases, and 2 times faster on average.
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INFOCOM - A Proactive Approach to reconstructing overlay multicast trees
IEEE INFOCOM 2004, 1Co-Authors: Mengkun Yang, Zongming FeiAbstract:Overlay multicast constructs a multicast delivery tree among end hosts. Unlike traditional IP multicast, the non-leaf nodes in the tree are normal end hosts, which are potentially more susceptible to failures than routers and may leave the multicast group voluntarily. In these cases, all downstream nodes are affected. Thus an important problem in overlay multicast is how to recover from node departures in order to minimize the disruption of service to those affected nodes. In this paper, we propose a Proactive Approach to restore overlay multicast trees. Rather than letting downstream nodes try to find a new parent after a node departure, each non-leaf node pre-calculates a parent-to-be for each of its children. When this non-leaf node is gone, all its children can find their respective new parents immediately. The salient feature of the Approach is that each non-leaf node can compute a rescue plan for its children independently, and in most cases, rescue plans from multiple non-leaf nodes can work together for their children when they fail or leave at the same time. We develop a protocol for nodes to communicate with new parents so that the delivery tree can be quickly restored. Extensive simulations demonstrate that our Proactive Approach can recover from node departures 5 times faster than reactive methods in some cases, and 2 times faster on average.
