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Table 2 Changes in the pulmonary function and Haller index after the bar insertion

From: Pulmonary function before and after the Nuss procedure in adolescents with pectus excavatum: correlation with morphological subtypes

 

Symmetric type (n = 9)

Asymmetric type (n = 9)

p

Preoperative PF

   

Restrictive, n (%)a

0 (0)

1 (5.6)

1

Obstructive, n (%)b

0 (0)

0 (0)

1

Postoperative PF

   

Restrictive, n (%)

1 (5.6)

4 (22.2)

0.294

Obstructive, n (%)

0 (0)

0 (0)

1

Preoperative HIc

3.8 ± 0.8

3.8 ± 1

0.971

Postoperative HI

2.7 ± 0.4

2.8 ± 0.2

0.387

  1. HI = Haller index; PF = pulmonary function.
  2. aThe restrictive pattern is forced volume capacity (FVC) and forced expiratory volume in 1 second (FEV1) values of less than 80% predicted and an FEV1/FVC ratio greater than 80%.
  3. bThe obstructive pattern is a FEV1/FVC ratio of less than 67%.
  4. cThe Haller index is calculated as the inner transverse thoracic diameter divided by the anteroposterior distance between the anterior thoracic wall and the spine at the narrowest point.
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Journal of Cardiothoracic Surgery

ISSN: 1749-8090

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