Active pulmonary tuberculosis: Role for amikacin in early treatment
F Méchaï1, J Figoni1, C Leblanc1
1CHU Avicenne, Service des maladies infectieuses et tropicales, 93000 Bobigny, France.
Objective:
To evaluate the efficacy of amikacin on sputum conversion during initial sputum smear positive tuberculosis treatment.
Material And Methods:
Single-center observational cohort study (2012-2013) evaluating time to sputum smear conversion with standard treatment (ST) versus standard treatment+amikacin (IV 15mg/kg/day) for seven days (STamK).
Results:
Forty-five patients were included. Median time to smear negative samples was 26.5 days (14-56) for the 30 (66.7%) patients included in the ST group and 48 days (19.5-69.5) for the 15 patients (33.3%) included in the STamK group (P=0.76). Time to negative culture was only known for 27 patients (61.4%): 47.5 days (26-58) for 18 patients in the ST group and 40 days (14-77) for nine patients in the STamK group.
Conclusion:
Despite our small sample size, the addition of amikacin in active tuberculosis treatment did not seem to impact time to smear conversion or period of contagiousness.
Insights
Adding amikacin to standard tuberculosis treatment did not shorten the time to sputum smear conversion in patients. This suggests amikacin may not improve early infectiousness during initial treatment for tuberculosis.
Area of Science:
- Infectious Diseases
- Microbiology
- Pharmacology
Background:
- Tuberculosis (TB) remains a significant global health challenge.
- Sputum conversion is a key indicator of treatment efficacy and reduced contagiousness.
- Amikacin is an aminoglycoside antibiotic with activity against Mycobacterium tuberculosis.
Purpose of the Study:
- To assess the impact of amikacin on sputum smear conversion time in patients with smear-positive pulmonary tuberculosis.
- To evaluate if adding amikacin to standard treatment shortens the period of infectiousness.
Main Methods:
- A single-center observational cohort study was conducted between 2012 and 2013.
- Patients received either standard treatment (ST) or standard treatment plus amikacin (STamK) for seven days.
- Time to sputum smear conversion was the primary outcome measured.
Main Results:
- The median time to sputum smear conversion was 26.5 days for the ST group (n=30) and 48 days for the STamK group (n=15), with no statistically significant difference (P=0.76).
- Time to negative culture results was also analyzed, showing a median of 47.5 days for ST and 40 days for STamK, though data was available for fewer patients.
- The study included 45 patients in total.
Conclusions:
- The addition of amikacin to standard tuberculosis treatment did not appear to influence the time to sputum smear conversion.
- The findings suggest that amikacin may not significantly reduce the period of contagiousness in the initial phase of TB treatment.
- Further research with larger sample sizes is warranted to confirm these observations.
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