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Table 4 Analysis of stricture causes

From: Long-term follow-up of self-expandable metallic stents in benign tracheobronchial stenosis: a retrospective study

Values

Post-inflammatory stenosis (n = 56)

Post-traumatic stenosis (n = 57)

P value

Male/female

16/40

38/19

 

Age (mean ± SD)

32.98 ± 9.64

43.77 ± 14.78

P = 0.134

Coverd/uncovered stent (n)

21/35

28/29

 

Clinical improvement

45 (80.36%)

49 (85.96%)

P = 0.21

Major granulation (requiring stent replacement)

3 (5.36%)

9 (15.79%)

P = 0.072

Minor granulation

14 (25%)

9 (15.79%)

P = 0.024

Recurrent stenosis

6 (10.71%)

13 (22.81%)

P = 0.086

Further interventions

 Balloon dilatation

13 (23.21%)

15 (26.32%)

P = 0.73

 Electrocautery

9 (16.07%)

20 (35.09%)

P = 0.21

 Cryotherapy

2 (3.57%)

8 (14.04%)

P = 0.05

 APC

1 (1.79%)

4 (7.02%)

P = 0.157

 Total

18 (32.14%)

33 (57.89%)

P = 0.008

Outcomes

 Resolution

36 (70.59%)

30 (61.22%)

P = 0.323

 Still under treatment

3 (5.88%)

11 (22.45%)

P = 0.017

 Bronchial occlusion

8 (15.69%)

0 (0.00%)

P = 0.004

 Surgery

3 (5.88%)

5 (10.2%)

P = 0.426

 Death

1 (1.96%)

3 (6.12%)

P = 0.288

  1. The values are expressed as mean ± SD or number (percentage); Abbreviations: p value, Post-inflammatory stenosis vs Post-traumatic stenosis, APC argon plasma coagulation