[Saccharin test for the study of mucociliary clearance: reference values for a Spanish population].

Objective: Mucociliary transport is an important defense mechanism for the airways. The aim of this study was to establish reference values for nasal mucociliary clearance time (MCT) by means of the saccharin test.

Subjects And Methods: A cross-sectional, descriptive, observational study was performed.

[Hepatopulmonary syndrome in a patient with adenocarcinoma of the colon metastatic to the liver and no apparent chronic liver disease].

Hepatopulmonary syndrome consists of a clinical triad: arterial blood deoxygenation, intrapulmonary vasodilation, and liver disease. Both acute and chronic cases of this syndrome have been reported, and the most common cause is cirrhosis. The principle disease mechanism is dilation of the pulmonary blood vessels causing alterations in gas exchange.