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Diagnosing Pulmonary Tuberculosis with the Xpert MTB/RIF Test
Published on: April 9, 2012
Rifampicin-Resistant Tuberculosis in a Toddler: A Report of a Rare Paediatric Case in Obafemi Awolowo University
S S Edward1, J I Akande1, P O Obiajunwa2
1Department of Paediatrics, Paediatric Gastroenterology/Nutrition Unit, Obafemi Awolowo University Teaching Hospitals Complex, Ile-Ife, Nigeria.
Insights
Rifampicin resistance (RR) in tuberculosis (TB) is a marker for multidrug-resistant TB (MDR-TB). This case highlights a rare pediatric RR-TB in Nigeria, emphasizing challenges in management and parental compliance.
Area of Science:
- Microbiology
- Pediatrics
- Infectious Diseases
Background:
- Antituberculous drug resistance complicates Mycobacterium tuberculosis (TB) management.
- Rifampicin resistance (RR) often indicates multidrug-resistant TB (MDR-TB), posing significant treatment challenges.
- Pediatric RR/MDR-TB is infrequently reported, especially in regions like Nigeria.
Observation:
- A 2-year-old Nigerian girl presented with prolonged fever, cough, dyspnea, and weight loss.
- Diagnostic workup, including GeneXpert MTB/RIF on gastric washout, confirmed RR-TB.
- No known TB contact or prior treatment history was reported for the patient or her parents.
Findings:
- The case represents a rare instance of pediatric RR-TB diagnosed in the hospital.
- GeneXpert MTB/RIF confirmed rifampicin resistance, a surrogate for MDR-TB.
- The patient's parents declined TB screening and follow-up treatment referral.
Implications:
- Young children are vulnerable to developing complex drug-resistant TB.
- Management of pediatric RR/MDR-TB requires specialized care, longer treatment, and addresses potential toxicity.
- Poor parental compliance presents a significant barrier to successful treatment outcomes in pediatric drug-resistant TB cases.
Abstract:
The emergence of resistant strains of mycobacterium tuberculosis (TB) to antituberculous drugs has compounded the management of the chronic infection. More than 90% of rifampicin (RIF)-resistant isolates are also isoniazid resistant; hence, rifampicin resistance (RR) is a surrogate marker for multidrug resistant TB (MDR-TB). Although there are limited reports of pediatric RR/MDR-TB in Nigeria, there had not been similar report in our hospital until now. A 2-year-old girl was admitted with 2-month history of fever, cough with dyspnea, and progressive weight loss. There was no known contact with adult who had chronic cough; the toddler and her parents have not been treated for TB in the past. Her chest X-ray showed nodular opacities, while gastric washout for GeneXpert MTB/RIF confirmed RIF-resistant TB. The parents declined screening for TB despite counseling. The patient was subsequently referred to a specialized center for the management of drug-resistant TB, but the parents failed to go for the treatment. Young children are at risk of developing TB disease and MDR/RR-TB, which is more complex to manage than drug-susceptible TB due to longer treatment duration, increased toxicity, as well as poor parental compliance to the demand of treatment.
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