Respiration; international review of thoracic diseases
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Randomized Controlled Trial
Propofol safety in bronchoscopy: prospective randomized trial using transcutaneous carbon dioxide tension monitoring.
Midazolam is commonly used for sedation during flexible bronchoscopy because of its relatively wide therapeutic window. Recently, sedation with propofol for bronchoscopy has gained popularity, although concern has been raised regarding its potential ability to induce severe respiratory depression. ⋯ Midazolam + alfentanil and propofol are equally safe for sedation during bronchoscopy. Sedation with propofol, using small boluses at short intervals, does not cause excessive respiratory drive depression and represents an excellent alternative to traditional sedation agents.
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Multicenter Study Comparative Study
Predicting nocturnal hypoventilation in hypercapnic chronic obstructive pulmonary disease patients undergoing long-term oxygen therapy.
Chronic obstructive pulmonary disease (COPD) patients are very sensitive to changes in pulmonary mechanics and central ventilation control during sleep and may develop significant gas exchange alterations with increased hypoxemia and hypercapnia. Oxygen therapy improves nocturnal desaturation but can worsen hypoventilation. ⋯ NHV is a relatively common finding in stable hypercapnic COPD patients undergoing LTOT and it is related to a higher BMI and lower PaO2 after oxygen administration.