Effect of Lung Volume Reduction Surgery on Body Mass Index.

Kretschman, DM; Kim, V; Pechulis, RM; Criner, G.J.

doi:10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a2915

B36. Copd Outcomes 2009

DOI: 10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a2915

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Effect of Lung Volume Reduction Surgery on Body Mass Index.

DM Kretschman¹,

V Kim

RM Pechulis³

et al.

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2012

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“…We hypothesized that patients who were more underweight would gain more weight after LVRS, and that weight gain would be associated with improvements in lung function and ventilatory efficiency. Some of these data were reported in an abstract at the 2009 American Thoracic Society International Conference (12).…”

mentioning

confidence: 99%

Weight Gain after Lung Reduction Surgery Is Related to Improved Lung Function and Ventilatory Efficiency

Kim

Kretschman

Sternberg

et al. 2012

Am J Respir Crit Care Med

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Rationale: Lung volume reduction surgery (LVRS) is associated with weight gain in some patients, but the group that gains weight after LVRS and the mechanisms underlying this phenomenon have not been well characterized. Objectives: To describe the weight change profiles of LVRS patients enrolled in the National Emphysema Treatment Trial (NETT) and to correlate alterations in lung physiological parameters with changes in weight. . We compared BMI groups and LVRS and medical groups within each BMI stratum with respect to baseline characteristics and percent change in BMI (%DBMI) from baseline. We examined patients with (DBMI > 5%) and without (DBMI , 5%) significant weight gain at 6 months and assessed changes in lung function and ventilatory efficiency (V E/V CO 2 ). Measurements and Main Results: The percent change in BMI was greater in the LVRS arm than in the medical arm in the underweight and normal weight groups at all follow-up time points, and at 12 and 24 months in the overweight group. In the LVRS group, patients with DBMI > 5% at 6 months had greater improvements in FEV 1 (11.53 6 9.31 vs. 6.58 6 8.68%; P , 0.0001), FVC (17.51 6 15.20 vs. 7.55 6 14.88%; P , 0.0001), residual volume (-66.20 6 40.26 vs. -47.06 6 39.87%; P , 0.0001), 6-minute walk distance (38.70 6 69.57 vs. 7.57 6 73.37 m; P , 0.0001), maximal expiratory pressures (12.73 6 49.08 vs. 3.54 6 32.22; P ¼ 0.0205), and V E/V CO 2 (-1.58 6 6.20 vs. 0.22 6 8.20; P ¼ 0.0306) at 6 months than patients with DBMI , 5% at 6 months. Conclusions: LVRS leads to weight gain in nonobese patients, which is associated with improvement in lung function, exercise capacity, respiratory muscle strength, and ventilatory efficiency. These physiological changes may be partially responsible for weight gain in patients who undergo LVRS.

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mentioning

confidence: 99%

Weight Gain after Lung Reduction Surgery Is Related to Improved Lung Function and Ventilatory Efficiency

Kim

Kretschman

Sternberg

et al. 2012

Am J Respir Crit Care Med

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Effect of Lung Volume Reduction Surgery on Body Mass Index.

Cited by 1 publication

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Weight Gain after Lung Reduction Surgery Is Related to Improved Lung Function and Ventilatory Efficiency

Weight Gain after Lung Reduction Surgery Is Related to Improved Lung Function and Ventilatory Efficiency

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