Diagnostic approach of childhood pulmonary tuberculosis in endemic areas of Southeast Nigeria

There is the need to ascertain the diagnostic approach on which medical doctors based their diagnosis of childhood pulmonary tuberculosis especially in tuberculosis endemic areas. To determine the diagnostic approach used by medical doctors in the diagnosis of childhood pulmonary tuberculosis. A cross sectional study, using structured questionnaires to collect data from medical doctors whose daily routine include seeing sick children was carried out. The common diagnostic approach or criteria were ranked by medical doctors in descending order of importance as follows; clinical features elicited from patients' history was ranked-1 by 56.4% (or 23 of 218); bacteriological investigation to isolate Mycobacterium Tuberculosis was ranked-2 by 22.5% or 49 of 218; radiological investigation to demonstrate typical changes consistent with active pulmonary tuberculosis was ranked-3 by 25.2% or 55 of 218; therapeutic trial with standard anti tuberculosis drugs was ranked-4 by 52.3% or 114 of 218; immunological investigation using tuberculin skin testing was ranked-5 by 30.3% or 66 of 218; and residual ranking of histological investigation using tissue biopsy was ranked-6 by 15.6% or 34 of 218. Therapeutic trial with standard anti tuberculosis drugs was consistently ranked as 4th by most groups of clinicians. Most clinicians from different subgroups studied followed a fairly similar order in the diagnosis of childhood pulmonary tuberculosis with a high premium placed on clinical features, bacteriologic, radiologic and therapeutic trial with anti tuberculosis drugs. The specialist in paediatric medicine relied more on clinical features and therapeutic trials for their diagnosis of childhood pulmonary tuberculosis.