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Related Experiment Videos

Asthma, age, and early reversibility testing.

Ozkan Kizkin1, Gamze Turker, Suleyman S Hacievliyagil

  • 1Department of Pulmonary Medicine, Turgut Ozal Medical Center, Inonu University, Malatya, Turkey. okizkin@inonu.edu.tr

The Journal of Asthma : Official Journal of the Association for the Care of Asthma
|June 17, 2003
PubMed
Summary
This summary is machine-generated.

Elderly asthma patients show reduced reversibility on early reversibility testing (ERT). This suggests age-specific limits for ERT are needed to improve asthma diagnosis accuracy in older adults.

Related Experiment Videos

Area of Science:

  • Pulmonology
  • Geriatric Medicine
  • Respiratory Medicine

Background:

  • Asthma diagnosis relies on early reversibility testing (ERT).
  • Age may influence ERT results, potentially impacting diagnostic accuracy in older adults.
  • Understanding age-related changes in ERT is crucial for effective asthma management.

Purpose of the Study:

  • To evaluate the impact of age on early reversibility testing (ERT) in asthma patients.
  • To compare ERT parameters between younger and older adult asthma cohorts.
  • To determine if age necessitates redefined ERT criteria for asthma diagnosis.

Main Methods:

  • Forty-nine non-smoking asthma patients were divided into two age groups: <50 years (Group I) and ≥50 years (Group II).
  • Pulmonary function tests, including forced expiratory volume in 1 second (FEV1), were measured at baseline and 20 minutes post-salbutamol inhalation for ERT.
  • Key ERT metrics analyzed included absolute variability (AV), percentage change (PC), and percent of predicted change (PPC) in FEV1.

Main Results:

  • Older adults (Group II) exhibited significantly lower absolute variability (AV) and percent of predicted change (PPC) in FEV1 compared to younger adults (Group I).
  • While Group I showed higher AV (412 mL vs. 247 mL) and PPC (13.6% vs. 9.9%), the percentage change (PC) was also higher (21.5% vs. 16.9%).
  • These differences in AV and PPC between age groups were statistically significant (p=0.001, p<0.05).

Conclusions:

  • Elderly asthma patients demonstrate reduced bronchodilator responsiveness as measured by ERT.
  • Current ERT thresholds may be less sensitive in detecting reversibility in older asthmatics.
  • Redefining ERT limits for elderly patients is recommended to enhance the accuracy of asthma diagnosis in this population.