Revista médica de Chile
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Revista médica de Chile · Jul 2004
[Spirometric reversibility to salbutamol in chronic obstructive pulmonary disease (COPD). Differential effects on FEV1 and on lung volumes].
In recent years it has been suggested that in COPD, lung volumes can be modified more than expiratory flows, with bronchodilators. ⋯ Our results demonstrate that changes in lung volumes, and consequently in dynamic lung hyperinflation, take place more frequently than changes in maximal expiratory flows during the spirometric test in patients with COPD. Assessment of spirometric reversibility based only on changes in FEV1 underestimates the effect of bronchodilator drugs in these patients.
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Revista médica de Chile · Jul 2004
[Intraoperatory hemodynamic monitoring with transesophageal echocardiography].
Transesophageal echocardiography allows a semi-invasive hemodynamic monitoring, during cardiac and non cardiac surgery. The benefits of such surveillance must be assessed, since it may help to change patient management. ⋯ Intraoperative transesophageal echocardiography is a safe technique that renders high quality images, with a low incidence of complications and that, when well indicated, orients therapeutic changes in 98% of patients.