Table 2 Changes in clinical parameters and body composition.

From: Body composition impacts outcome of bronchoscopic lung volume reduction in patients with severe emphysema: a fully automated CT-based analysis

Parameter

Pre-implant

(Baseline)

Follow-up

(3-Month)

Follow-up

(6-month)

n = 300

n = 273

n = 200

FEV1, L

0.75 (0.3–1.6)

0.85 (0.38–1.9)***

0.81 (0.32–1.65)***

RV, L

5.7 (3.2–11.6)

4.9 (2.9–12.3)***

4.9 (3.0–9.5)***

IVC, L

2.2 (0.6–4.6)

2.56 (1.1–4.9)***

2.5 (0.86–4.9)***

6MWD, m

280 (95–520)

320 (110–545)***

310 (90–600)***

CAT score

27 (14–38)

24 (15–35)***

25 (12–37)***

Muscle, BAR

1.632 (0.9–2.7)

1.638 (1–3)

1.635 (0.77–3.2)

Δ, %

0.37

0.18

TAT, BAR

2.86 (0.25–10.3)

3.01 (0.34–14.7)*

3.00 (0.31–9)*

Δ, %

5.2

4.9

SAT, BAR

1.95 (0.08–7.9)

1.94 (0.1–6.1)

1.88 (0.09–6.4)

Δ, %

–0.51

–3.59

PAT, BAR

0.16 (0.03–0.58)

0.17 (0.04–0.53)

0.17 (0.04–0.5)*

Δ, %

6.3

6.3

IMAT, BAR

0.54 (0.09–1.87)

0.58 (0.1–2.74)

0.57 (0.12–1.44)

Δ, %

7.4

5.5

EAT, BAR

0.08 (0.01–0.28)

0.08 (0.02–0.3)

0.08 (0.02–0.28)

Δ, %

0

0

  1. 6MWD 6-min walking distance, CAT COPD assessment test, FEV1 forced expiratory volume in 1 s, IVC inspiratory vital capacity, RV residual volume, BAR bone adjusted ratio, IMAT intra- and intermuscular adipose tissue, EAT epicardial adipose tissue, PAT paracardial adipose tissue, SAT subcutaneous adipose tissue, TAT total adipose tissue. Statistically significant differences to baseline marked: *p < 0.05 **p < 0.01 ***p < 0.001.