Table 1 Demographic and Clinical Features of 17 Patients with BO.

From: Mycoplasma pneumoniae–Associated Bronchiolitis Obliterans Following Acute Bronchiolitis

Age at diagnosis Gender

Clinical presentation

Imaging findings

Lung function(%)

Severity

Asthma, other personal atopic disease

Allergen

Family atopic disease

Follow up

FEV1

FVC

FEF75%

initial

latest

Increase% after salbutamol

initial

latest

initial

latest

Time (yrs)

Outcome

8yr 2mo M

Shortness of breath on exertion for 5mo after bronchiolitis

Mosaic attenuation

70.5

73.7

16.8

89.5

90.3

40.9

44.0

Mild

Asthma & AR before bronchiolitis

Dog fur, mould

Grand- father AR

1.0

Symptom and lung function improvement

3yr 4mo M

Wheezing on exertion for 2mo after bronchiolitis

Mosaic attenuation

71.7

74

16.5

88.9

92

30.4

34.8

Mild

Eczema&AR before bronchiolitis, Asthma after BO

Mould

Mother AR and urticaria

3.0

Symptom and lung function improvement

7yrs M

Wheezing on exertion for 2mo after bronchiolitis

Mosaic attenuation

72

80

25.6

98.2

100

44.6

50.5

Mild

Simultaneous Asthma &BO

Dust mite

Mother AR

1.5

Symptom and lung function improvement

4yrs 9mo M

Wheezing for 6mo after bronchiolitis

Mosaic attenuation

72.8

75.6

43

88.9

90

40.2

44

Mild

Eczema before bronchiolitis,Asthma after bronchiolitis

Dust mite, milk

Mother AR

2.0

Symptom and lung function improvement

7yrs 6mo M

Tachypnoea&wheezing for 6mo after bronchiolitis

Mosaic attenuation, bronchi-ectasis, air-trapping

63.6

71.7

13.2

85.2

96.2

18.4

24.4

Moderate

AR& atopic dermatitis, Asthma after bronchiolitis

Dust mite, pollen

Grand- father Asthma

1.5

Symptom and lung function improvement

4yrs F

Wheezing &dyspnoea for 2mo during & after bronchiolitis

Mosaic attenuation, bronchi-ectasis, air-trapping

50.9

63.0

22.1

81.0

87.3

15.6

24.4

Moderate

Eczema, Asthma after BO

Sea food

Father AR

5.5

Symptom and lung function improvement

3yrs 4mo M

Wheezing for 2mo during & after bronchiolitis

Mosaic attenuation, bronchi-ectasis, air-trapping

53

62.6

25

82.0

86.0

18.6

25

Moderate

Asthma &eczema before bronchiolitis

Mould, egg

Mother Atopic dermatitis

5.0

Symptom and lung function improvement

6yrs 4mo F

Wheezing &tachypnoea for 3mo after bronchiolitis

Mosaic attenuation, bronchi-ectasis, air-trapping

66.3

68.4

28.8

81.2

85.4

26.4

35.1

Moderate

AR &Asthma after BO

Shrimp

Mother & Father AR

4.0

Symptom and lung function improvement

5yrs 6mo M

Dyspnoeaon exertion for 5mo after bronchiolitis

Mosaic attenuation, air-trapping, left lung hyperlucent

57.3

58.9

2.8

84.6

85.5

18.3

19.1

Moderate

Asthma after bronchiolitis

Cock-roach, seafood

Mother Urticaria, Uncle Asthma

4.0

Symptom improvement, lung function no change

4yrs 4mo M

Tachypnoea on exercise for 6mo after bronchiolitis

Mosaic attenuation, left lung collapse

69.8

75

34

83

88

31.0

36

Moderate

AR before bronchiolitis, Asthma after BO

Dust mite

Father AR

2.0

Symptom and lung function improvement

7yrs 4mo M

Wheezing &dyspnoea for 6mo after bronchiolitis

Mosaic attenuation, bronchi- ectasis,air-trapping, left lung hyperlucent

37.4

35.1

32.5

55.2

55

11.9

10.9

Severe

Asthma before bronchiolitis

Dust mite

Mother Urticaria

1.0

Symptom improvement, lung function no change

3yrs 6mo F

Wheezing&dyspnoea for 1.5mo during and after bronchiolitis

Mosaic attenuation, central bronchi ectasis, emphysema

64.3

38

43

69.8

61.1

27.8

11.8

Severe

Simultaneou-s Asthma & BO, Urticaria& AR

Dust mite, pollen

Mother, aunt &grand- father AR &urticaria

5.0

Symptoms and lung function worse

4yrs 9mo F

Wheezing &dyspnoea for 8moduring &after bronchiolitis

Mosaic attenuation, bronchi- ectasis, air-trapping, left lung hyperlucent

48.4

50.8

16.2

77.3

78.2

14.6

13.9

Severe

Asthma after bronchiolitis

Dust mite, pollen, cat fur

Mother AR &asthma, Grand-father Asthma

6.0

Symptom improvement, lung function no change

5yrs M

Wheezing &dyspnoea for 7mo during & after bronchiolitis

Mosaic attenuation, central bronchi- ectasis, emphysema

48.1

33.8

81.8

77.3

62

15.7

13.8

Severe

Asthma before bronchiolitis

Sea food, dust mite

Mother AR

4.5

Symptoms and lung function worse

4yrs 6mo M

Wheezing &dyspnoea for 4mo during & after bronchiolitis

Mosaic attenuation, central bronchi-ectasis, emphysema

28.8

25.7

55.2

50.8

58

15.8

8.6

Severe

Eczema, Asthma after BO

Mould, Dust mite

Father AR

3.5

Symptoms and lung function worse

12yrs 8mo F

Dyspnoea for 4mo after bronchiolitis

Mosaic attenuation, central bronchi- ectasis, emphysema

17

18

9.8

49

49

10

8

Severe

Skin urticaria

Mould

Mother AR

1.0

Symptoms and lung function no change

9yr 2mo M

Wheezing on exertion for 3mo after bronchiolitis

Mosaic attenuation

74.3

75

1.9

78.5

80.7

40.5

38.9

Mild

Eczema

Dust mite

Father AR

1.0

Symptom improvement, lung function no change

  1. Abbreviations: F, female; M, male; mo, month; BO, Bronchiolitis obliterans; AR, allergic rhinitis; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; FEF, forced expiratory flow; yrs, years.