PubMed · 13254639
The source did not provide an abstract. Follow the original record for more information.
Explore connections, maps & timelines
O DE GOYCOECHEA. 1955-06-03. [Bilateral bronchiectasis].. https://pubmed.ncbi.nlm.nih.gov/13254639/
Cite the original work for its findings. Save a collection to share your selection of sources.
KEEP EXPLORING
OBJECTIVE: Water is the main constituent of mucus, and its concentration is likely to be important in all aspects of mucus function, including ciliary clearance. The objective of this study was to investigate the effect of water content and osmolality of the mucus on mucociliary transportability. METHODOLOGY: Rheology and ciliary transportability of 10 sputum samples that had been subjected to various manipulations were measured using a mucus-depleted bovine trachea model. RESULTS: It was shown that addition of sodium chloride 0.2 Osmoles/kg (0.585% weight for weight) increased the transportability by 41% (P < 0.01). Evaporation of the sputum to 50% of its original weight caused a 118% increase in transportability (P < 0.0006), but iso-osmolal removal of 50% of the liquid with filter cards led to a non-significant, 25% increase in transportability. Parallel plate viscoelasticity was approximately doubled in both the evaporated and liquid-depleted samples, but was not changed by the addition of 0.2 Osmoles/kg of sodium chloride. The correlation between the osmolality of sputum and ciliary transportability (r = 0.54, P= 0.005) was better than the correlations between the viscosity (r = 0.21, P= 0.27) or elasticity (r = 0.23, P= 0.23) and ciliary transportability. CONCLUSIONS: These results suggest that the osmolality of sputum exerts a greater influence on mucociliary clearance than its viscoelastic properties.
A case of a 54-year-old woman exhibiting the yellow nail syndrome with exudative pleural effusions, lymphoedema, pericardial effusion, rhinosinusitis and bronchiectasis is described. This case illustrates the rather benign course of the syndrome over ten years. A review of the literature is provided. The etiology of the syndrome is obscure, while the pathogenesis seems to involve impaired lymphatic drainage. The entity should be considered in the differential diagnosis of bilateral pleural effusion. It is likely that the condition is not as rare as it appears from the number of published reports, and a greater awareness of its various forms will probably lead to more frequent diagnosis.
Explore the source record for details and available documents.