Respiration; international review of thoracic diseases · 2000
Effect of intravenous fructose 1,6-diphosphate administration in malnourished chronic obstructive pulmonary disease patients with chronic respiratory failure.
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Marchesani F, Valerio G, Dardes N, Viglianti B, Sanguinetti C M
Аннотация
BACKGROUND: Weight loss and skeletal muscle wasting are common in patients with chronic obstructive pulmonary disease (COPD) and can influence the course and the prognosis of COPD. Hypophosphatemia is a pathologic status often characterized by muscle weakness and is a frequent laboratory finding in these patients.
OBJECTIVE: The aim of the present study was to evaluate the effect of an organic phosphate (fructose 1,6-diphosphate, FDP) administration on respiratory performance in 45 malnourished COPD patients in stable clinical conditions.
METHODS: Physiologic evaluation including spirometry, maximal voluntary ventilation (MMV), elevated arm test, maximal mouth pressures (PImax and PEmax), respiratory response to CO(2), oxygen (PaO(2)) and carbon dioxide (PaCO(2)) arterial tension, a visual analogic scale (VAS) to measure dyspnea, and complete blood tests were done at the beginning and again at the end of the study.
RESULTS: After FDP administration, there was a significant increase in PImax (43.0 +/- 18.3 cm H(2)O before treatment vs. 49.8 +/- 14.9 cm H(2)O after treatment; p < 0.005). This did not occur in the placebo group (40.3 +/- 17.4 cm H(2)O before treatment vs. 42.6 +/- 20.1 cm H(2)O after treatment, nonsignificant). There was also a trend of VAS to decrease and of MVV to increase.
CONCLUSIONS: These results show that FDP administration may be useful in the management of malnourished COPD patients, especially in increasing their respiratory muscle strength.
OBJECTIVE: The aim of the present study was to evaluate the effect of an organic phosphate (fructose 1,6-diphosphate, FDP) administration on respiratory performance in 45 malnourished COPD patients in stable clinical conditions.
METHODS: Physiologic evaluation including spirometry, maximal voluntary ventilation (MMV), elevated arm test, maximal mouth pressures (PImax and PEmax), respiratory response to CO(2), oxygen (PaO(2)) and carbon dioxide (PaCO(2)) arterial tension, a visual analogic scale (VAS) to measure dyspnea, and complete blood tests were done at the beginning and again at the end of the study.
RESULTS: After FDP administration, there was a significant increase in PImax (43.0 +/- 18.3 cm H(2)O before treatment vs. 49.8 +/- 14.9 cm H(2)O after treatment; p < 0.005). This did not occur in the placebo group (40.3 +/- 17.4 cm H(2)O before treatment vs. 42.6 +/- 20.1 cm H(2)O after treatment, nonsignificant). There was also a trend of VAS to decrease and of MVV to increase.
CONCLUSIONS: These results show that FDP administration may be useful in the management of malnourished COPD patients, especially in increasing their respiratory muscle strength.