Adaptive Support Ventilation: Review of the Literature and Clinical Applications
نویسندگان
چکیده
Mechanical ventilation is frequently delivered to patients admitted to intensive care units to reduce the work of breathing (WOB), to improve oxygenation, or to assist ventilation. The interaction between patient and ventilator is complex with respect to a variety of variables including pressure, volume, flow, and time. Yet these variables can be adequately represented by a mathematical model, called the equation of motion for the respiratory system, which can be simplified as: Airway opening pressure+Pmus=(Flow x Resistance)+(Volume x Elastance) Where Pmus is respiratory muscle pressure and is calculated based on the following general equation: Pmus=Elastic Pressure+Resistive Pressure. The equation shows that for any mode, only one variable (i.e., pressure, volume, or flow) can be controlled at a time. So we can simplify the modes to pressure control versus volume control. Abstract
منابع مشابه
New modalities for non-invasive positive pressure ventilation: A review article
Efficiency of non-invasive positive pressure ventilation in the treatment of respiratory failure has been shown in many published studies. In this review article, we introduced new modalities of non-invasive ventilation (NIV), clinical settings in which NIV can be used and a practical summary of the latest official guidelines published by the European Respiratory Clinical Practice. Clinical tri...
متن کاملAnesthetic management of diaphragmatic hernia repair in a dog: a case report and literature review of anesthetic techniques
This case report describes the anesthetic management and ventilation technique in the surgical treatmentof traumatic diaphragmatic hernia in a dog. A 5-month-old 8-kg female terrier with a history of car accidentwas presented for femoral fracture repair. Before anesthetic induction, marked tachypnea and dyspnea werenoted. Diaphragmatic hernia was diagnosed based upon radiographic and ultrasonog...
متن کاملSafe Use of Flammable Endotracheal Tubes During Anesthesia for Laryngeal Laser Surgery-Report of 1024 Cases and a Brief Literature Review
Introduction: One of the major concerns in laryngeal laser surgery is the risk of airway fire. The introduction ofwrapped tubes and metal tubes has reduced the fire hazards. However, these tubes are expensive and do not provide convenient access to the surgical field. There are few laboratory studies addressing the resistance of polyvinylchloride tubes against ignition in the given circum...
متن کاملComparison of the effect of pressure support ventilation and volume assured pressure support ventilation on weaning patients off mechanical ventilation after cardiac surgery
Background: Weaning from mechanical ventilation in the intensive care unit is an important step in the treatment process. More patients in less than 6 hours after cardiac surgery can be separated from mechanical ventilation and extubated. However, 20-40% of patients after cardiac surgery, due to dysfunctional ventilator weaning response (DVWR), still remain under mechanical ventilation. Therefo...
متن کاملCredit scoring in banks and financial institutions via data mining techniques: A literature review
This paper presents a comprehensive review of the works done, during the 2000–2012, in the application of data mining techniques in Credit scoring. Yet there isn’t any literature in the field of data mining applications in credit scoring. Using a novel research approach, this paper investigates academic and systematic literature review and includes all of the journals in the Science direct onli...
متن کاملDifferent Types of Pitch Angle Control Strategies Used in Wind Turbine System Applications
The most common controller in wind turbine is the blade pitch angle control in order to get the desired power. Controlling the pitch angle in wind turbines has a direct impact on the dynamic performance of the machine and fluctuations in the power systems. Due to constant changes in wind speed, the wind turbines are of nonlinear and multivariate system. The design of a controller that can ad...
متن کامل