A K Maurya1, S Kant, V L Nag, R A S Kushwaha, T N Dhole. 1. Department of Pulmonary Medicine, Chhatrapati Shahuji Maharaj Medical University, (Erstwhile King George Medical College), Lucknow, Uttar Pradesh, India.
Abstract
BACKGROUND: Drug-resistant tuberculosis is one of major current challenges to global public health. The transmission of resistant strains is increasing as a burden of multidrug-resistant tuberculosis (MDR-TB) patients in extra pulmonary tuberculosis (EPTB) cases in India. AIM AND OBJECTIVES: The aim was to study trends of anti-tuberculosis drug resistance pattern in new cases and previously treated cases of EPTB in referral hospitals in northern India. STUDY DESIGN AND SETTING: A prospectively observational study and referral medical institutions in northern India. MATERIALS AND METHODS: All EPTB specimens were processed for Ziehl Neelsen staining, BACTEC culture and BACTEC NAP test for Mycobacterium tuberculosis complex. All M. tuberculosis complex isolates were performed for radiometric-based drug susceptibility pattern against streptomycin, isoniazid, rifampicin and ethambutol using the 1% proportion method. RESULTS: We found that 165/756 (20.5%) isolates were identified as M. tuberculosis complex by the NAP test. We observed that 39.9% were resistant to first-line antitubercular drugs. The resistance rate was higher in previously treated patients: H (30.3%), R (16.3%), E (15.7%) and S (16.3%). MDR-TB was observed in 13.4%, but, in new cases, this was 11.4% and 19.1% of the previously treated patients (P<0.05). CONCLUSION: MDR-TB is gradually increased in EPTB cases and predominant resistance to previous treated cases of EPTB. The molecular drug sensitivity test (DST) method can be an early decision for chemotherapy in MDR-TB patients. The International Standards of TB Care need to be used by the RNTCP and professional medical associations as a tool to improve TB care in the country.
BACKGROUND: Drug-resistant tuberculosis is one of major current challenges to global public health. The transmission of resistant strains is increasing as a burden of multidrug-resistant tuberculosis (MDR-TB) patients in extra pulmonary tuberculosis (EPTB) cases in India. AIM AND OBJECTIVES: The aim was to study trends of anti-tuberculosis drug resistance pattern in new cases and previously treated cases of EPTB in referral hospitals in northern India. STUDY DESIGN AND SETTING: A prospectively observational study and referral medical institutions in northern India. MATERIALS AND METHODS: All EPTB specimens were processed for Ziehl Neelsen staining, BACTEC culture and BACTEC NAP test for Mycobacterium tuberculosis complex. All M. tuberculosis complex isolates were performed for radiometric-based drug susceptibility pattern against streptomycin, isoniazid, rifampicin and ethambutol using the 1% proportion method. RESULTS: We found that 165/756 (20.5%) isolates were identified as M. tuberculosis complex by the NAP test. We observed that 39.9% were resistant to first-line antitubercular drugs. The resistance rate was higher in previously treated patients: H (30.3%), R (16.3%), E (15.7%) and S (16.3%). MDR-TB was observed in 13.4%, but, in new cases, this was 11.4% and 19.1% of the previously treated patients (P<0.05). CONCLUSION: MDR-TB is gradually increased in EPTB cases and predominant resistance to previous treated cases of EPTB. The molecular drug sensitivity test (DST) method can be an early decision for chemotherapy in MDR-TBpatients. The International Standards of TB Care need to be used by the RNTCP and professional medical associations as a tool to improve TB care in the country.
Authors: S Baghbanbashi; S Mohammad J Mousavi; H Dabiri; M Hakemi-Vala; H Goudarzi; G Hamzehloo; S Amini; M J Nasiri Journal: New Microbes New Infect Date: 2021-01-20
Authors: Sachin R Atre; Jayshri D Jagtap; Mujtaba I Faqih; Yogita K Dumbare; Trupti U Sawant; Sunil L Ambike; Jitendra S Bhawalkar; Sandeep K Bharaswadkar; Padmaja K Jogewar; Ramji S Adkekar; Balasaheb P Hodgar; Vaishali Jadhav; Nitin D Mokashi; Jonathan E Golub; Avika Dixit; Maha R Farhat Journal: Am J Respir Crit Care Med Date: 2022-01-15 Impact factor: 21.405