Objective: To review the literature on the use of variable mechanical ventilation and the main outcomes of this technique. Methods: Search, selection, and analysis of all original articles on variable ventilation, without restriction on the period of publication and language, available in the electronic databases LILACS, MEDLINE®, and PubMed, by searching the terms "variable ventilation" OR "...

An understanding of respiratory physiology is helpful when weaning a patient from mechanical ventilation. Various criteria are available that assess pulmonary function and the patient's ability to breathe spontaneously. The majority of patients are weaned without difficulty, but a small percentage will require careful evaluation. A complete assessment of the patient is essential during the wean...

INTRODUCTION This article reviews the literature on the weaning process in relation to nursing care. Weaning is defined as the process of gradually reducing mechanical ventilatory support as the patient’s own respiratory system recovers from disease (Keen, 2000). This process has been identified as one of the highest-ranked research priorities in nursing care by the American Association of Crit...

spontaneously, 106 patients were randomized to 1 h CPAP or 1 h T-piece/ZEEP, following which patients were extubated and mask 0, administered. No significant difference existed between groups in age, sex, HR, BP, Flo, PaCO, or PaO,. However, P(A-a)02 was significantly greater at 120 mm in the CPAP group. Within the CPAP gsoup, P(A-a)O, was also significantly worse at 120 vs 0 mm. Nineteen Tpiec...

Mechanical ventilation systems for controlling conditions in individual zones can move a constant or variable supply of conditioned air to handle all or some of the heating and cooling loads. They are classified as all-air, air-water, and all-water systems. All-air systems include single-duct, dual-duct and multizone. The systems can be designed to operate at Constant Air Volume (CAV) or Variab...

Mechanical ventilation in a situation of mass casualty respiratory failure will require a substantial increase in the capacity for mechanical ventilation, to prevent unnecessary mortality. Concern over the difficulties of treating large numbers of patients with respiratory failure is exceeded only by our lack of experience on which to base decisions. This review evaluates the likely scenarios t...

D iscontinuation of ventilation is estimated to take up to 40% of the total duration of ventilatory support, and around 3–6% of patients admitted to the intensive care unit (ICU) require a prolonged course of mechanical ventilation (MV). Patients being liberated from ventilatory support therefore occupy a significantnumber of ICUbeds andhave a major impact on healthcare resources. There have be...

1. Borg BM, Thompson BR. The measurement of lung volumes using body plethysmography: a comparison of methodologies. Respir Care 2012;57(7):1076-1083. 2. Wanger J, Clausen JL, Coates A, Pedersen OF, Brusasco V, Burgos F, et al. Standardisation of the measurement of lung volumes. Eur Respir J 2005;26(3):511-522. 3. Miller MR, Hankinson J, Brusasco V, Burgos F, Cassaburi R, Coates A, et al. Standa...