Thorax
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In patients with chronic obstructive pulmonary disease (COPD) periods of hypopnoea occur during rapid eye movement (REM) sleep, but the mechanisms involved are not clear. ⋯ Hypopnoea during REM sleep in patients with COPD is associated with reduced inspiratory muscle activity. The pattern of hypopnoea may be either "obstructive" or "central" and is generally consistent within an individual. Relatively unopposed action of the diaphragm on the rib cage during REM sleep is not accompanied by greater lateral inspiratory paradox.
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Randomized Controlled Trial Comparative Study Clinical Trial
Compliance at night with low flow oxygen therapy: a comparison of nasal cannulae and Venturi face masks.
The factors that influence nocturnal compliance among patients prescribed low flow oxygen therapy were determined and tolerance of nasal cannulae and Venturi face masks compared. ⋯ Nocturnal tolerance of nasal cannulae is superior to Venturi face masks, and this factor should be considered when choosing the method of oxygen delivery.
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Preliminary experience of video assisted thoracoscopic pneumonectomy in six patients with bronchogenic carcinoma is described. ⋯ Video assisted thoracoscopic pneumonectomy can be performed safely in patients who have stage I and stage II bronchogenic carcinomas, up to 6 cm in diameter, with no mediastinal involvement on mediastinoscopy and thoracic computed tomographic assessment. This technique may result in less postoperative pain and discomfort and should allow a quicker return to normal activities.
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Nebulised salbutamol can now be administered by ambulance personnel to patients with severe acute asthma en route to hospital. This treatment, however, is not yet available in all ambulances. The safety and effectiveness of allowing ambulance crews to initiate treatment with nebulised salbutamol has been assessed in patients with acute severe asthma. ⋯ Nebulised salbutamol is an effective and safe treatment for acute asthma when administered by ambulance personnel after a short training course.