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Post-tuberculous lung function impairment in a tuberculosis reference clinic in Cameroon
Bertrand Hugo Mbatchou Ngahane1, Junior Nouyep2, Malea Nganda Motto3
1Department of Internal Medicine, Douala General Hospital, Douala, Cameroon; Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon.
Respiratory Medicine
|April 26, 2016
Summary
Pulmonary tuberculosis survivors frequently experience lung function impairment. Longer symptom duration and fibrotic patterns are key risk factors, highlighting the need for early diagnosis to mitigate long-term respiratory effects.
Area of Science:
- Pulmonary Medicine
- Infectious Diseases
- Epidemiology
Background:
- Pulmonary tuberculosis (pTB) survivors often face lasting lung function impairment, impacting quality of life.
- Understanding the prevalence and risk factors of this impairment is crucial for patient management.
Purpose of the Study:
- To determine the prevalence of lung function impairment in patients treated for pTB.
- To identify factors associated with lung function impairment post-pTB treatment.
Main Methods:
- A cross-sectional study involving 269 pTB patients (aged ≥15) treated between 2008-2012 in Douala, Cameroon.
- Spirometric measurements assessed airflow obstruction, restrictive defects, and mixed defects.
- Logistic regression analysis identified independent risk factors for lung function impairment.
Main Results:
- The prevalence of lung function impairment was 45.4% among treated pTB patients.
- Independent risk factors identified were longer duration of symptoms before diagnosis (OR 1.08) and fibrotic radiographic patterns (OR 3.54).
Conclusions:
- Lung function impairment is a common consequence of pTB in Douala.
- Early healthcare-seeking for pTB symptoms is recommended to reduce the long-term impact on lung function.
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