| Objective: To compare the nutritional support value of resting energy expenditure (REE) measured with Critical Care Management system (CCM) with that of basal energy expenditure (BEE) measured with Harris-Benedict formula in the patients with chronic obstructive pulmonary disease (COPD). Methods: The 57 patients with malnutritional COPD who were diagnosised by the guideline of COPD made by the respiratory branch of Chinese Medical Association and mini nutritional assessment (MNA) were devided into two groups, who were treated with nutritional support by resting energy expenditure (REE) measured with CCM and basal energy expenditure (BEE) measured with Harris-Benedict formula. The parameters with regard to inspiratory pressure after 0.1 sec. at tidal breathing (P0.1), maximal mouth inspiratory pressure (Pimax), maximal mouth expiratory pressure (Pemax), percent of forced expiratory volume in 1 second (FEV1%), percent of maximal voluntary ventilation (MVV%), arterial carbon dioxide tension (PaCO2), serum albumin (Alb), serum transferrin (TRF) and prealbumin (PAlb) were measured in all the patients at the first day of admission and the tenth day after nutritional support. Results: HBBEE were higher than the REE measured with CCM system by about 13.6%( P<0.05).There is significant difference. Compared to two groups after nutritional support and common therapy, the values of P0.1 and PaCO2 are obviously decreased, the values of Pimax, Pemax, Alb, TRF and PAlb are obviously increased(P<0.05), FEV1% and MVV have no change obviously (P>0.05), the values of PAlb of CCM are increased obviously than that of Harris-Benedict formula(P < 0.05). There are no obviously difference in others parameters(P> 0.05). Conclusion: Energy expenditure of every day measured with CCM is close to the actual energy expenditure of the patients .But the effect of nutritional support was no significant difference between the method of CCM and HB.
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