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AFB Smear
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Several studies have compared the diagnostic value of sputum induction (SI) with flexible fiberoptic bronchoscopy (FOB) in diagnosing pulmonary tuberculosis; however, these investigations yield an inconsistent conclusion. This study aims to evaluate the role of acid-fast bacilli (AFB) testing of SI and bronchoalveolar lavage (BAL) samples in suspected pulmonary tuberculosis cases.
7p
vikissinger
21-12-2023
3
2
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Xpert MTB/RIF has been shown to have a superior sensitivity to microscopy for acid fast bacilli (AFB) in sputum and has been recommended as a standard first line investigation for pulmonary tuberculosis (PTB). Bronchoscopy is a valuable tool in diagnosing PTB in sputum negative patients.
5p
vimontana2711
05-04-2021
11
1
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Early diagnosis and treatment of nontuberculous mycobacterial lung diseases (NTM-LD) and pulmonary tuberculosis (PTB) are important clinical issues. The present study aimed to compare and identify the chest CT characteristics that help to distinguish NTM lung disease from PTB in patients with acid-fast bacilli (AFB) smear-positive sputum.
6p
vimontana2711
05-04-2021
14
1
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In this study, 100 specimens from tuberculosis confirmed patients and suspected patients who were treated in Hai Duong Tuberculosis and Lung Disease Hospital to perform 3 simultaneous M. tuberculosis detection methods as multiplex PCR assay, direct sputum smear (AFB) and bacterial culture (BK).
7p
tamynhan9
02-12-2020
13
2
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During the study period (July to December 2016) a total of 188 samples (sputum and blood from each person) have been tested in the National Reference Laboratory (NRL) at the Institute of Chest and Respiratory Diseases / Baghdad. These cases are considered as suspected pulmonary tuberculosis. This study for these 188 suspected specimens declare that, 103 (54.78%) cases were positive using direct assay (AFB smear microscopy) and 85 (45.21%) were considered to be negative cases by smear microscopy.
12p
quenchua6
15-06-2020
14
1
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Bacteriological confirmation plays a key role in the diagnosis of tuberculosis. Many systems have been developed in the recent years apart from traditional microscopy and culture on Lowenstein Jensen (LJ) medium. The objective of this study is to compare the rate of detection of Mycobacteria by acid fast staining, LJ medium and Mycobacteria Growth Indicator Tube (MGIT). Hundred patients with clinical suspicion of pulmonary tuberculosis attending a tertiary care hospital over a period of one and a half years were enrolled in the study.
8p
caygaocaolon4
01-04-2020
8
1
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Tuberculosis (TB) is the commonest opportunistic infection and cause of death in patients with Human Immunodeficiency Virus (HIV) in developing countries. World Health Organization (WHO) recommends 85% treatment success rate for all TB cases as an indicator of TB control. The study aimed at determining TB co infection among the seropositive cases. It was a cross-sectional study among seropositive patients whose sociodemographic characteristics with treatment history were obtained using a semi-structured questionnaire.
5p
trinhthamhodang3
14-02-2020
15
0
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India is high tuberculosis burdened country with increasing prevalence of multidrug resistant tuberculosis. Rapid diagnosis and prompt treatment of infectious cases are the key elements in reducing the spread of tuberculosis. In the present study we sought to ascertain multidrug resistant tuberculosis among previously treated tuberculosis cases and its resistance pattern to rifampicin and isoniazid genes.
7p
chauchaungayxua1
04-12-2019
35
1
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To study the situation of diagnosing, admitting and treating tuberculosis patients at the Respiratory Center, 103 Military Hospital in 5 years (2013 - 2018). Method: Retrospective analysis of cases treated at the Respiratory Center, 103 Military Hospital in 5 years (2013 - 2018). Results: The total number of tuberculosis patients was 2,005, accounting for 16.33% (2,005/12,279) of the total center admissions. Most new patients had smear positive pulmonary tuberculosis (AFB+) accounting for 44.84% (899/2,005) of cases.
5p
caygaolon
31-10-2019
19
0
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Smear microscopy and culture forms the backbone of tuberculosis (TB) laboratory investigations in tertiary healthcare facilities which have a large number of cases and financial constraints. The present study aimed to re-evaluate the efficiency of smear microscopy and culture on Lowenstein Jensen (LJ) medium for acid fast bacilli (AFB) isolated from patients with pulmonary tuberculosis. 210 samples were processed for detection of AFB by Ziehl Neelsen (ZN) staining. Concentration method of N-acetly-L-cystein-NaOH was used and the samples were isolated on LJ medium. AFB was seen in 168 (80.
6p
taisaocothedung
12-01-2013
38
1
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In those situations where an individual will have visitors in the home, refuses to wear a mask or cover his/her mouth when coughing, and/or is less likely to adhere to an anti-TB treatment regimen because of drug or alcohol addiction, it may be prudent to be more conservative and keep the patient in the hospital until sputum is AFB smear-negative. The individual may be transferred to another facility while still AFB smear positive, as long as it is to an AII room. The individual should be transported with appropriate respiratory precautions....
24p
taisaocothedung
12-01-2013
35
2
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Plans must immediately be set in motion to facilitate eventual outpatient care and follow-up. The DOHMH must be notified of this patient and participate in the discharge planning, ideally early in the patient’s hospital course. An individual does not necessarily have to be AFB smear-negative to be released from the hospital to home. There is no minimum number of days the patient needs to be on treatment prior to discharge if the patient is being discharged to an appropriate setting.
27p
taisaocothedung
12-01-2013
46
2
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Smear positive pulmonary tuberculosis patients were diagnosed using the following criteria as per the RNTCP guidelines: (i) Two or three smears positive for AFB and (ii) One sputum smear positive for AFB with radiographic abnormalities consistent with active pulmonary tuberculosis. Smear negative pulmonary tuberculosis was diagnosed if three sputum smears were negative for AFB but evidence of radiographic abnormalities of active tuberculosis was present after two weeks of antibiotic treatment for routine bacterial infections of the respiratory tract19.
8p
taisaocothedung
12-01-2013
53
1
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This may be attributed to the fact that previous study was carried out in children. Previous report has shown that collection and processing of specimen for TB diagnosis in children is often problematic and prone to contamination especially in endemic settings with limited human and infrastructural facilities16. Also, recent trainings in Good Laboratory Practice by the laboratory scientists may account for their subsequent improvement in processing clinical specimens. Almost all (eight of the nine) positive AFB samples were from the age bracket 20-60 yr.
6p
taisaocothedung
12-01-2013
42
1
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A pre-tested questionnaire was used by a trained counselor to obtain information on demographic characteristics, social and medical history from the subjects. Other important information about PTB such as previous BCG vaccination, contact with an index case and exposure to tuberculin skin test were also obtained. Laboratory investigations: Three early morning sputum were collected from each consenting asymptomatic subject. The samples were transported to TB laboratory of the department of Medical Microbiology and Parasitology, UCH, for immediate processing.
7p
taisaocothedung
12-01-2013
44
2
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