منابع مشابه
The Relaxants and Pulmonary Ventilation.
In health the arterial blood carbon dioxide tension (PaC02) of the resting subject is kept constant between about 36 and 44 mm Hg and the arterial pH also shows little variation (pH 7.36 to 7.44). All the techniques used in general anaesthesia tend to cause variations from these normal limits and techniques involving the use of the relaxants are no exception to this rule. The relaxants reduce v...
متن کاملPulmonary circulation and ventilation.
The pulmonary circuit receives the whole of the cardiac output, and the flow through it is governed by events in the systemic circulation. Its function is gaseous exchange, and the low resistance and high capacitance of the circuit is subservient to this function. Local flow is affected by intra-alveolar oxygen tensions and regional flow by passive hydrostatic effects due to gravity. The distri...
متن کاملMyopathy following mechanical ventilation for acute severe asthma: the role of muscle relaxants and corticosteroids.
BACKGROUND Acute myopathy following mechanical ventilation for near-fatal asthma (NFA) has been described recently, and some researchers have suggested that this complication is related to the use of neuromuscular blocking agents (NMBAs) and corticosteroids (CSs). OBJECTIVES To determine the incidence of acute myopathy in a group of patients and to examine the most important predictors of its...
متن کاملMuscle Disorders and the Relaxants.
1 Muscle weakness is a feature of many illnesses but the present discussion will be confined mainly to conditions in which it is a manifestation of defects in the anterior horn cells, the motor nerves, the neuromuscular junction, or the muscle itself. The pathogenesis of these disorders is often ill-understood and more than one component of the neuromuscular system may be involved. Moreover, kn...
متن کاملPulmonary Circulation and the Ventilation- Perfusion Ratio
The heart drives two separate and distinct circulatory systems in the body: the pulmonary circulation and the systemic circulation. The pulmonary circulation is analogous to the entire systemic circulation. Similar to the systemic circulation, the pulmonary circulation receives all of the cardiac output. Therefore, the pulmonary circulation is not a regional circulation like the renal, hepatic,...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1963
ISSN: 0007-0912
DOI: 10.1093/bja/35.9.521