Respiratory symptoms and lung function in young adults with severe alpha(1)-antitrypsin deficiency (PiZZ).
(2002) In Thorax 57(8). p.705-708- Abstract
- BACKGROUND: Neonatal screening for alpha(1)-antitrypsin (AAT) deficiency was undertaken in Sweden between 1972 and 1974 when 129 infants with severe AAT deficiency (phenotype PiZ) were identified. The cohort has been followed up prospectively. METHODS: 124 PiZ subjects, still alive and still living in Sweden, were invited to a follow up examination at about 22 years of age. The check up included a clinical examination, spirometric tests, and a questionnaire on smoking habits and respiratory symptoms. RESULTS: Ninety eight subjects (97 PiZZ and 1 PiZ-) subjects attended the follow up. The mean age of the subjects was 22.5 years (range 19.8-24.8). The mean (SD) forced expiratory volume in 1 second (FEV(1)) was 98 (14)% predicted, vital... (More)
- BACKGROUND: Neonatal screening for alpha(1)-antitrypsin (AAT) deficiency was undertaken in Sweden between 1972 and 1974 when 129 infants with severe AAT deficiency (phenotype PiZ) were identified. The cohort has been followed up prospectively. METHODS: 124 PiZ subjects, still alive and still living in Sweden, were invited to a follow up examination at about 22 years of age. The check up included a clinical examination, spirometric tests, and a questionnaire on smoking habits and respiratory symptoms. RESULTS: Ninety eight subjects (97 PiZZ and 1 PiZ-) subjects attended the follow up. The mean age of the subjects was 22.5 years (range 19.8-24.8). The mean (SD) forced expiratory volume in 1 second (FEV(1)) was 98 (14)% predicted, vital capacity (VC) was 103 (14)% predicted, and the mean FEV(1)/VC ratio was 83 (7)%. Eighty six subjects had previously undergone spirometric tests. The median follow up time was 4.3 years (range 0.9-7.3). The mean annual change in FEV(1) (% predicted) was -1.2% (95% CI -2.1 to -0.3), in VC (% predicted) was -1.5% (95% CI -2.0 to -0.9), and in the FEV(1)/VC ratio (%) was -0.3% (95% CI -0.7 to 0.2). Twenty eight individuals (29%) reported recurrent wheezing. Fifteen subjects (15%) had been diagnosed by a physician as having asthma. Eighteen subjects reported that they had smoked at some time; 10 were current smokers. The mean number of pack years among the ever smokers was 3.4 (range 0.6-10.5). Ten of 18 ever-smokers and 18 of 80 non-smokers reported recurrent wheezing (p<0.01), while exertional dyspnoea was reported by six ever smokers and 11 non-smokers (p<0.05). Lung function test results did not differ significantly between ever smokers and non-smokers. CONCLUSIONS: Young PiZ adults have essentially normal lung function, but have a high prevalence of asthma symptoms. Smoking in these individuals is associated with an increased frequency of respiratory symptoms. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/109688
- author
- Piitulainen, Eeva LU and Sveger, Tomas LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Thorax
- volume
- 57
- issue
- 8
- pages
- 705 - 708
- publisher
- BMJ Publishing Group
- external identifiers
-
- wos:000177373200010
- pmid:12149531
- ISSN
- 1468-3296
- language
- English
- LU publication?
- yes
- id
- 125a89cf-d477-42b8-98d9-01e24fab6439 (old id 109688)
- alternative location
- http://thorax.bmjjournals.com/cgi/reprint/57/8/705.pdf
- date added to LUP
- 2016-04-01 15:26:09
- date last changed
- 2018-11-21 20:34:27
@article{125a89cf-d477-42b8-98d9-01e24fab6439, abstract = {{BACKGROUND: Neonatal screening for alpha(1)-antitrypsin (AAT) deficiency was undertaken in Sweden between 1972 and 1974 when 129 infants with severe AAT deficiency (phenotype PiZ) were identified. The cohort has been followed up prospectively. METHODS: 124 PiZ subjects, still alive and still living in Sweden, were invited to a follow up examination at about 22 years of age. The check up included a clinical examination, spirometric tests, and a questionnaire on smoking habits and respiratory symptoms. RESULTS: Ninety eight subjects (97 PiZZ and 1 PiZ-) subjects attended the follow up. The mean age of the subjects was 22.5 years (range 19.8-24.8). The mean (SD) forced expiratory volume in 1 second (FEV(1)) was 98 (14)% predicted, vital capacity (VC) was 103 (14)% predicted, and the mean FEV(1)/VC ratio was 83 (7)%. Eighty six subjects had previously undergone spirometric tests. The median follow up time was 4.3 years (range 0.9-7.3). The mean annual change in FEV(1) (% predicted) was -1.2% (95% CI -2.1 to -0.3), in VC (% predicted) was -1.5% (95% CI -2.0 to -0.9), and in the FEV(1)/VC ratio (%) was -0.3% (95% CI -0.7 to 0.2). Twenty eight individuals (29%) reported recurrent wheezing. Fifteen subjects (15%) had been diagnosed by a physician as having asthma. Eighteen subjects reported that they had smoked at some time; 10 were current smokers. The mean number of pack years among the ever smokers was 3.4 (range 0.6-10.5). Ten of 18 ever-smokers and 18 of 80 non-smokers reported recurrent wheezing (p<0.01), while exertional dyspnoea was reported by six ever smokers and 11 non-smokers (p<0.05). Lung function test results did not differ significantly between ever smokers and non-smokers. CONCLUSIONS: Young PiZ adults have essentially normal lung function, but have a high prevalence of asthma symptoms. Smoking in these individuals is associated with an increased frequency of respiratory symptoms.}}, author = {{Piitulainen, Eeva and Sveger, Tomas}}, issn = {{1468-3296}}, language = {{eng}}, number = {{8}}, pages = {{705--708}}, publisher = {{BMJ Publishing Group}}, series = {{Thorax}}, title = {{Respiratory symptoms and lung function in young adults with severe alpha(1)-antitrypsin deficiency (PiZZ).}}, url = {{https://lup.lub.lu.se/search/files/4392244/623638.pdf}}, volume = {{57}}, year = {{2002}}, }