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Tuberc Respir Dis > Volume 44(5); 1997 > Article
Original Article
Tuberculosis and Respiratory Diseases 1997;44(5):1019-1029.
DOI: https://doi.org/10.4046/trd.1997.44.5.1019    Published online October 1, 1997.
Resting Energy Expenditure in Patients with Lung Cancer.
Jae Lyun Lee, Ki Beom Kim, Hak Jun Lee, Jin Hong Jung, Kwan Ho Lee, Hyun Woo Lee
Department of Internal Medicine, College of Medicine, Yeungnam University, Taegu, Korea.
Abstract
BACKGROUND
Elevation of resting energy expenditure(REE) in patients with lung cancer has been described in earlier studies and may contribute to cancer cachexia, but limited information is available regarding the prevalence and determinants of the increased REE. The aim of this study was to assess the prevalence and contributing factors of a hypermetabolic state in newly detected patients with lung cancer and to assess the energy balance in order to improve our knowledge about weight loss in patients with lung cancer. METHODS: Thirty one consecutive, newly detected patients with lung cancer and 20 control patients with benign lung diseases were included in this study. Resting energy expenditure(REE) was measured by indirect calorimetry using ventilated hood system and predicted REE was calculated by the Harris-Benedict formular. RESULTS: The energy balance in newly detected lung cancer patients was disturbed in a high proportion of patients, and hypermetabolic state occurred in 61% of the patients. Tumor volume, cancer type, location, stage, the presence of atelectasis or infiltration, pulmonary fuction, or smoking behavior were not associated with increase in REE. But patients with distant metastasis had significantly higher REE comparing with patients without metastasis. Thirty nine percents of the patients with lung cancer had substantial loss of more than 10% of their pre-illness weight. Weight losing patients with lung cancer were not accompanied by an increase in REE. CONCLUSION: We concluded that the REE was elevated in a higher proportion of patients with lung cancer and distant metastasis was found to be contributing factor to the elevated REF.
Key Words: Lung cancer, Resting energy expenditure
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