Noninvasive support of ventilation is commonly needed in patients with neuromuscular disease. Body ventilators, which are used rarely, function by applying intermittent negative pressure to the thorax or abdomen. More commonly, noninvasive positive-pressure ventilation (NPPV) is used. This therapy can be applied with a variety of interfaces, ventilators, and ventilator settings. The patient int...

BACKGROUND Inspiratory rise time and cycling criteria are important settings in pressure support ventilation. The purpose of this study was to investigate the impact of minimum and maximum rise time and inspiratory cycling criteria settings on 6 new generation ventilators. Our hypothesis was there would be a difference in the exhaled tidal volume, inspiratory time, and peak flow among 6 differe...

Noninvasive mechanical ventilatory techniques include the use of negative and positive pressure ventilators. Negative pressure ventilators, such as the "iron lung", support ventilation by exposing the surface of the chest wall to subatmospheric pressure during inspiration; whereas, expiration occurs when the pressure around the chest wall increases and becomes atmospheric or greater than atmosp...

Mechanical ventilators are vital components of critical care services for patients with severe acute respiratory failure. In particular, pressure- and volume-controlled mechanical ventilation systems the typical modes used in intensive units (ICUs) to ventilate who cannot breathe adequately on their own. this paper, a Simulink model is proposed simulate these two employed lung ventilators. Firs...

If the H1N1 pandemic worsens, there may not be enough ventilated beds to care for all persons with respiratory failure. To date, researchers who explicitly discuss the ethics of intensive care unit admission and the allocation of ventilators during an influenza pandemic have based criteria predominantly on the principles of utility and efficiency, that is, promoting actions that maximize the gr...

BACKGROUND The battery life (BL) of portable home ventilator batteries is reported by manufacturers. The aim of this study was to evaluate the effects of ventilator mode, breathing frequency, PEEP, and leaks on the BL of 5 commercially available portable ventilators. METHODS The effects of the ventilator mode (volume controlled-continuous mandatory ventilation [VC-CMV] vs pressure support ven...

The SARS-CoV2 virus has spread world wide rapidly. Although a small fraction of the infected people need special care, this number is much greater than what healthcare systems support. In most severe cases, mechanical ventilation crucial for patient recovery, but not available in needed quantity. Brazil, ventilators are mainly imported and at high cost, increased by pandemic economic crisis, wi...

BACKGROUND Quality control procedures vary considerably among the providers of equipment for home mechanical ventilation (HMV). METHODS A multicentre quality control survey of HMV was performed at the home of 300 patients included in the HMV programmes of four hospitals in Barcelona. It consisted of three steps: (1) the prescribed ventilation settings, the actual settings in the ventilator co...

Intra- and inter-hospital transport is common due to the need for advanced diagnostics and procedures, and to provide access to specialized care. Risks are inherent during transport, so the anticipated benefits of transport must be weighed against the possible negative outcome during the transport. Adverse events are common in both in and out of hospital transports, the most common being equipm...

Even if the performance of a given ventilator has been evaluated in the laboratory under very well controlled conditions, inappropriate maintenance and lack of long-term stability and accuracy of the ventilator sensors may lead to ventilation errors in actual clinical practice. The aim of this study was to evaluate the actual performances of ventilators during clinical routines. A resistance (7...