scholarly journals RESISTENSI Mycobacterium Tuberculosis TERHADAP OBAT ANTI TUBERKULOSIS

Author(s):  
A. Nikmawati ◽  
Windarwati Windarwati ◽  
Hardjoeno Hardjoeno

Patients infected with resistant Mycobacterium tuberculosis strain will be very difficult to cure by standard treatment. To evaluatethe drug resistance of Mycobacterium tuberculosis. A Cross sectional study was performed from January until July 2005. Samples wereobtained from sputum of the suspect tuberculosis. All samples were cultured in Lowenstein-Jensen Media and followed by sensitivity testaccording to resistance ratio method. Of 236 samples, there were 30% positive cultures. The percentage of mono-resistance to Isoniazidwas 70%, to Rifampicin 64.3%, to Ethambutol 62.8% and Streptomycin 64.3%. The percentage of Multi Drug Resistant Tuberculosis(MDR-TB) was 20–40% and the percentage of poly-resistant (Ethambutol and Streptomycin) was 47.1%. The percentage of suspecttuberculosis with positive culture was 30%. There were also found high percentage of mono-resistant, poly-resistant and MDR-TB.

2018 ◽  
Vol 5 ◽  
pp. 63-68
Author(s):  
S. Dahal ◽  
M.R. Banjara ◽  
D. Khadka ◽  
G. Ghimire ◽  
S. Sharma

Objectives: The objective of this study was to assess drug susceptibility pattern of Mycobacterium tuberculosis (MTB). Methods: This cross-sectional study was carried out among 145 clinically suspected and previously treated pulmonary tuberculosis patients visiting National Tuberculosis Centre, Bhaktapur, Nepal. After obtaining written informed consent, questionnaire was administered and sputum samples were collected from each patient. Each sample was subjected to Ziehl-Neelsen (ZN) staining and cultured on Lowenstein Jensen (LJ) medium at 37ºC for 8 weeks. MTB isolates were identified by growth rate and colony morphology, confirmed by biochemical tests and drug susceptibility testing (DST) of identified isolates was performed by proportion method. Results: A total of 49.7% (n=72) sputum samples were positive for MTB by culture and 46.9% (n=68) were positive by ZN staining. Among culture positive isolates of MTB (n= 72), 25% (n=18) were resistant to at least one drug. The prevalence of multi drug resistant tuberculosis (MDR-TB) was 15.3% (n=11) of which 5.56% (n=4) were resistant to rifampicin (RIF) only, 1.39% (n= 1) were resistant to isoniazid (INH) only. Out of 18 resistant isolates, 61.1% (n=11) were resistant to both RIF and INH, 21.43% (n=3) resistant to INH were susceptible to RIF and 26.67% (n=4) resistant to RIF were susceptible to INH. Smoking (P=0.001) and coughing (P=0.009) were statistically significant with isolation of MTB. Conclusion: Since the prevalence of MDR-TB was high, MDR-TB strains should be identified in order to initiate second line treatment.


Author(s):  
A. Chaudhary ◽  
T. Mahmood ◽  
A.D. Shukla ◽  
A. Shreenivasa ◽  
Verma Arvind ◽  
...  

Methods: An observational cross sectional study, which includes 116 patients of sputum smear positive pulmonary TB of age 18 or above. Further, detailed history taking regarding different demographic profile was done. Also, they were subjected to CB-NAAT and rifampicin resistant cases were considered as MDR-TB. Results: Proportion of MDR-TB was 31.89% among retreatment TB cases. 56.75 % (n=21) of MDR-TB cases were between the age group of 21-40 years. Proportion of MDR-TB was higher among males (75.67%), married (59.45%) and rural dwellers 59.45%. Proportion was 61.76% among patients with BMI <16; 31.57% with BMI 16-16.99, 28.57% with BMI 17-18.49 and 5.7% with BMI 18.50-24.99. MDRTB proportion was less 29.72% (n=11) in patients with history of TB contact in family. Pulmonary TB including MDR-TB was more common among illiterates (37.83% among MDR). Conclusion: Proportion of MDR-TB was high among retreatment cases in north India. Among them low BMI and education status are modifiable factor and this study signifies that MDR-TB burden can be reduced by improving health and education status of patient.


Author(s):  
Safira Nur Ainiyah ◽  
Soedarsono Soedarsono ◽  
Pirlina Umiastuti

Introduction: Multi Drug-Resistant Tuberculosis (MDR TB) is caused by Mycobacterium tuberculosis and has been resistant to isoniazid and rifampicin. Its treatment needs long time and causes some side effects which can make the patients non-adherent so that family support is needed. This study aims to know the relationship between family’s assessment support and MDR TB patient’s adherence on treatment in RSUD Dr. Soetomo Surabaya. Methods: This was an analytic observational cross-sectional study, to know the frequency distribution of family’s assessment support, MDR TB patient’s adherence, and the relationship between them in 24 MDR TB patients, recruited from MDR TB Clinic, RSUD Dr. Soetomo, Surabaya, from October 2017 to June 2018 and their family. The analysis was descriptive statistic and inferential statistic using Fisher Exact Test. Results: The results of this study showed that 83.3% of MDR TB patients’ family give high assessment support and 58.3% of MDR TB patients in RSUD Dr. Soetomo from October 2017 to June 2018 have high adherence on treatment. There is significant (p = 0.020), moderate (c = 0.468), and direct relationship between family’s assessment support and MDR TB patient’s adherence on treatment in RSUD Dr. Soetomo Surabaya. Conclusion: To improve MDR TB patient’s adherence on treatment, family must give high assessment support.


Author(s):  
Aarthi Sridhar ◽  
Anjana Gopi ◽  
Abhilasha Dalal ◽  
Divya Ravi

To compare the sensitivity of 2 microscopic methods for the diagnosis of Mycobacterium tuberculosis (M.tb) along with culture and drug susceptibility testing to first line drugs.: The cross-sectional study comprises 200 suspected cases of pulmonary tuberculosis both clinically and radiologically in KIMS, Bangalore over a period of 2 years. Samples (sputum/BAL fluid) were collected, processed and stained by Ziehl Neelson (ZN) and Fluorescent methods. Culture and drug susceptibilty testing was done for Streptomycin, Isoniazid, Rifampicin and Ethambutol by Mycobacterium growth indicator tube (MGIT) method after decontamination.Fischer’s test : 1. Out of 200 samples: 1.120 were male and 80 were female; 2. 18 were positive by Ziehl Neelson, 21 by Fluorescent and 28 by culture; 3. Majority of the patients belonged to age group 41-50 years (23%); 4. InMGIT, 26 were M.tb and 2 were Non-tubercular mycobacteria; 5. Out of 26 M.tb isolates, 4 were resistant to streptomycin, 6 to isoniazid, 2 to rifampicin and 9 to ethambutol.1. The sensitivity of Fluorescent staining (64.28%) is higher than that of Ziehl-Neelson (51.7%); 2. In MGIT, 26 were M.tb and 2 were Non tubercular mycobacteria; 3. 2 were Multi-drug resistant- tuberculosis (MDR-TB) This study made us aware of the need for prompt detection, identification and appropriate treatment of Tuberculosis due to the rising incidence of MDR-TB.


2019 ◽  
Vol 70 (3) ◽  
pp. 425-435 ◽  
Author(s):  
Amita Gupta ◽  
Susan Swindells ◽  
Soyeon Kim ◽  
Michael D Hughes ◽  
Linda Naini ◽  
...  

Abstract Background We assessed multidrug-resistant tuberculosis (MDR-TB) cases and their household contacts (HHCs) to inform the development of an interventional clinical trial. Methods We conducted a cross-sectional study of adult MDR-TB cases and their HHCs in 8 countries with high TB burdens. HHCs underwent symptom screenings, chest radiographies, sputum TB bacteriologies, TB infection (TBI) testing (tuberculin skin test [TST] and interferon gamma release assay [IGRA]), and human immunodeficiency virus (HIV) testing. Results From October 2015 to April 2016, 1016 HHCs from 284 MDR-TB cases were enrolled. At diagnosis, 69% of MDR-TB cases were positive for acid-fast bacilli sputum smears and 43% had cavitary disease; at study entry, 35% remained smear positive after a median MDR-TB treatment duration of 8.8 weeks. There were 9 HHCs that were diagnosed with TB prior to entry and excluded. Of the remaining 1007 HHCs, 41% were male and the median age was 25 years. There were 121 (12%) HHCs that had new cases of TB identified: 17 (2%) were confirmed, 33 (3%) probable, and 71 (7%) possible TB cases. The TBI prevalence (defined as either TST or IGRA positivity) was 72% and varied by age, test used, and country. Of 1007 HHCs, 775 (77%) were considered high-risk per these mutually exclusive groups: 102 (10%) were aged &lt;5 years; 63 (6%) were aged ≥5 and were infected with HIV; and 610 (61%) were aged ≥5 years, were negative for HIV or had an unknown HIV status, and were TBI positive. Only 21 (2%) HHCs were on preventive therapy. Conclusions The majority of HHCs in these high-burden countries were at high risk of TB disease and infection, yet few were receiving routine preventive therapy. Trials of novel, preventive therapies are urgently needed to inform treatment policy and practice.


2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Firew Tadesse Kusheno ◽  
Teklehaimanot Mezgebe Nguse ◽  
Gebremedhin Beedemariam Gebretekle

Background. Multidrug-resistant tuberculosis (MDR-TB) is becoming a major challenge of tuberculosis (TB) control program globally but more serious in developing countries like Ethiopia. In 2013, a survey result showed that in Ethiopia, tuberculosis patients from new cases and retreatment cases had resistance to at least isoniazid and rifampicin with a significant increase over time. Inadequate knowledge and wrong perception about MDR-TB by patients were detrimental to TB control programs. The study aimed at assessing the knowledge and attitude of TB patients of direct observation therapy program towards multidrug-resistant tuberculosis in health centres of Addis Ababa, Ethiopia. Methods. A cross-sectional study was conducted in 10 health centres of Addis Ababa which were selected by simple random sampling technique. A total of 422 TB patients were included in the study, and participants from each health centres were taken proportional to the number of clients in each health centres. Data was entered and analyzed using SPSS version 20. Association between outcome and independent variables was explored using logistic regression. Results. The level of knowledge of TB patients about MDR-TB was poor and only 55.0% of TB patients attained good overall knowledge. A significant association was found between good knowledge and attending tertiary level of education (AOR=4.3, 95%CI=1.9, 9.8), gender (AOR=1.62, 95%CI=1.1, 2.4), income of respondents’ family (OR=0.4, 95%CI=0.2, 0.9), and sleeping practice (AOR=8.0, 95%CI=4.0, 15.7). Nearly three-fourths (73.5%) of TB patients had a favourable attitude towards MDR-TB. Occupational status (AOR=4.4, 95%CI=2.5, 7.6) and sleeping practices (AOR=2.4, 95%CI=1.2, 5.0) were significantly associated with the attitude of the TB patients. Conclusions. Knowledge of TB patients toward MDR-TB was poor. Although a large proportion of patients had a favourable attitude, it still needs to be improved. Hence, efforts should be made to implementing health education to improve awareness of TB patients about MDR-TB.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Tichaona Sagonda ◽  
Lucy Mupfumi ◽  
Rumbidzai Manzou ◽  
Beauty Makamure ◽  
Mqondisi Tshabalala ◽  
...  

We conducted a cross-sectional study of second line drug resistance patterns and genetic diversity of MDR-TB isolates archived at the BRTI-TB Laboratory, Harare, between January 2007 and December 2011. DSTs were performed for second line antituberculosis drugs. XDR-TB strains were defined as MDR-TB strains with resistance to either kanamycin and ofloxacin or capreomycin and ofloxacin. Strain types were identified by spoligotyping. No resistance to any second line drugs was shown in 73% of the isolates, with 23% resistant to one or two drugs but not meeting the definition of XDR-TB. A total of 26 shared types were identified, and 18 (69%) matched preexisting shared types in the current published spoligotype databases. Of the 11 out of 18 clustered SITs, 4 predominant (>6 isolates per shared type) were identified. The most and least abundant types were SIT 1468 (LAM 11-ZWE) with 12 (18%) isolates and SIT 53 (T1) with 6 (9%) isolates, respectively. XDR-TB strains are rare in Zimbabwe, but the high proportion of “pre-XDR-TB” strains and treatment failure cases is of concern. The genetic diversity of the MDR-TB strains showed no significant association between SITs and drug resistance.


2020 ◽  
Author(s):  
Ahmad Alikhani ◽  
Elnaz Amini ◽  
Mohsen Arabi ◽  
Hamid Reza Goli

Abstract Background: Due to the significant prevalence of tuberculosis (TB) in Mazandaran and Golestan provinces in northern Iran, we aimed to investigate the gene mutations in resistant Mycobacterium tuberculosis isolated from pulmonary TB patients in these provinces of Iran. Methods: In this cross-sectional study, sputum of patients with suspected tuberculosis were evaluated in the central TB laboratory of Golestan in a period of two years from 2017 to 2019. After growing the isolates on Lowenstein-Jensen medium, the antibiotic-resistant cases identified using the resistance ratio method. Then, the DNAs of the resistant isolates were extracted manually by the CTAB-Proteinase K method and investigated for gene mutations using PCR test and sequencing.Results: The mean age of 26 patients was 52 years, while smoking, addiction, and diabetes were more common risk factors. However, 4 isolates (15.38%) were resistant to antibiotics, while one (3.84%) of them was resistant to rifampin, and two isolates (7.69%) were resistant against isoniazid, whereas one other isolate (3.84%) exhibited a multidrug-resistant (MDR) phenotype. The MDR isolate had a mutation in codon 315 of the KatG gene resulting in the conversion of serine to threonine, and a mutation in the codon 450 of the rpoB gene, causing the alteration of serine to leucine. In the rifampin-resistant isolate, a mutation occurred at the same site converting serine to leucine. Conclusions: The low prevalence of antibiotic resistance in clinical isolates of Mycobacterium tuberculosis in this study indicates the appropriate treatment of the patients in this area, however, the prevalence of resistance to isoniazid was higher than rifampin. The more important point was that the single MDR isolate was identified in Mazandaran province.


2020 ◽  
Author(s):  
Getachew Abay Kahsu ◽  
Bahlibi Hailay

Abstract Background Tuberculosis (TB) is an infectious disease usually caused by Mycobacterium tuberculosis (MTB) bacteria. The emergence of Mono or multidrug-resistant tuberculosis and extensively drug-resistant tuberculosis (XDR-TB), poses a considerable challenge to Mycobacterium tuberculosis control programs in the worldwide; however, there has been no reliable and organized data on trends and prevalence drug resistance of Mycobacterium tuberculosis in study area; Therefore, aim of this study to determine the trends of Mycobacterium tuberculosis and prevalence of Rifampicin resistance in eastern zone, Tigray, Northern Ethiopia. Methods Hospital based retrospective cross-sectional study was conducted at Adigrat General Hospital from June 01 to August 30, 2019.Data was collected retrospectively from the registration books using data extraction format commence January 01, 2015, December 30, 2018. Data was entered into Epi-Info 3.1 and exported and analyzed using SPSS Version 20. The results were summarized using descriptive statistics, tables, and figures. P values < 0.05 would be considered statistically significant. Result A total of 5,944 Mycobacterium tuberculosis presumptive patients were included in the study. The majority of the study participants were male (58.1%). The median age of the participants was 40.0 (IQR 57, 26) years, the majority age-group was 30-44 years. The overall prevalence of Mycobacterium tuberculosis was 1446 (24.3%). Of the total confirmed cases, 132 (9.1%) were resistant to rifampicin. From total Rifampicin resistant 129 (97.7%) new cases and the rest were previously treated tuberculosis patients. Age, reason for diagnosis, site of presumptive tuberculosis, being HIV infected was found a significant association with our dependent variable; however, only Age and being HIV infected associated with rifampicin resistance. Conclusion In our study, the overall trends of Mycobacterium tuberculosis and prevalence of rifampicin resistance were found high and increased; therefore, maximizing early detection of drug-resistant Mycobacterium tuberculosis and strengthening TB infection control activities and proper implementation of directly observed treatment are recommended reducing the burden of this contagious disease.


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