Research Article
[Retracted] Effect of Enteral and Parenteral Nutrition Support on Pulmonary Function in Elderly Patients with Chronic Obstructive Pulmonary Disease Complicated by Respiratory Failure
Figure 2
Changes in pulmonary function indexes before and after nutritional support in three groups. (a) Changes in LVEF before and after nutritional support in three groups. (b) Changes in FEV1 before and after nutritional support in three groups. (c) Changes in EEV1 before and after nutritional support in three groups. (d) Changes in FEV1/FVC before and after nutritional support in three groups. Comparison with the same group before treatment ; #comparison with group A after the treatment (); &comparison with group B after the treatment ().
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