3 research outputs found
Burden of Hepatitis B Virus at a Tertiary Care Hospital, Doda, Jammu and Kashmir, India: A Cross-sectional Study
Introduction: Hepatitis B Virus (HBV) causes most frequent
chronic liver disease of infectious origin in human beings
worldwide, with more than 600,000 deaths caused by end-stage
liver disease complications per year. The most used test for
identifying acute HBV infections and carriers is the detection of
HBsAg. Immunochromatography assays have been suggested
for routine use in clinical microbiology laboratories for the
detection of HBsAg since they are easy to use, affordable,
don’t need specialised equipment, and are straightforward to
run. Compared to commercially available HEPA card kit for the
detection of the same markers, Enzyme Linked Immunosorbent
Assay (ELISA) was shown to be more sensitive for the detection
of HBsAg. This study is first of its kind in District Doda, Jammu
and Kashmir, India.
Aim: To know the burden of HBV in a Tertiary Care Hospital,
Government Medical College, Doda using HEPA card kit and
ELISA method.
Materials and Methods: The present hospital-based crosssectional study was carried out in the Department of Microbiology,
Government Medical College and Hospital, Doda Jammu
and Kashmir, India during the period from January 2020 to December 2020. The study comprised blood samples from all
age groups referred by clinical departments for testing HBsAg.
Tests were performed using an immunochromatographic technique
(HEPA card Diagnostic enterprises) for the qualitative detection
of HBsAg, and results were interpreted in accordance with the
manufacturer’s guidelines. The collected data was analysed in
Microsoft excel sheet using Chi-square test to know the burden
of HBV infection.
Results: Among total number of 5,448 samples tested, 50 (0.92%)
were positive for HBsAg which comes under low epidemicity
(<2%) as per World Health Organisation (WHO) guidelines. The
number of positive females and males were 30 (0.84%) and
20 (1.07%), respectively. Females were predominate over males
and majority of the positive patients (N=29) were younger than
40 years though prevalance (2.1%) was higher in age group
above 40 years. All samples which shows positive by rapid test
were also shown positive by ELISA test.
Conclusion: Overall prevalence of HBV was 0.92% which
comes under low epidemicity (<2%) as per WHO guidelines.
It can be an alternate option for community based studies
and also helps to improve the public health and to prevent the
spreading of disease in the local population
Molecular Typing of Methicillin Resistant Staphylococcus aureus using coa Gene Polymerase Chain Reaction-Restriction Fragment Length Polymorphism: A Cross-sectional Study
Introduction: The need for fast, precise diagnostic tests to identify
active tuberculosis is essential, mainly in endemic nations such
as India. An automated real-time Polymerase Chain Reaction
(PCR) method for pulmonary tuberculosis (TB) detection known
as the Cartridge Based Nucleic Acid Amplification Test (CBNAAT)
or GeneXpert assay shows great promise as a complement to the
TrueNat and conventional sputum microscopy techniques.
Aim: To compare sensitivity, specificity, Positive Predictive Value
(PPV), and Negative Predictive Value (NPV) of CBNAAT with
TrueNat and smear microscopy in the detection of Mycobacterium
tuberculosis.
Materials and Methods: A cross-sectional comparative study
on 175 patients with suspected pulmonary TB was conducted
from June 2021 to November 2021 in a tertiary care hospital
at Government Medical College, Doda District of Jammu
and Kashmir, India. The sensitivity, specificity, PPV, NPV, and
diagnostic accuracy for the diagnosis of tuberculosis were
calculated for Acid Fast Bacilli (AFB) smear microscopy, TrueNat,
and the GeneXpert and compared with each other. Statistical
analysis of the data was conducted with Statistical Package for
the Social Science (SPSS) version 20.0.
Results: Out of the total 175, 168 (96%) patients were TB
positive by CBNAAT, 162 (92.6%) by TrueNat, and 148 (84.6%)
as per smear microscopy. Sensitivity, specificity, PPV, NPV, and
accuracy of Ziehl-Neelsen (ZN) stain in the detection of pulmonary
TB in sputum samples were 86.31%, 57.14%, 97.97%, 14.81%,
and 85.14%, respectively. Whereas in the case of the TrueNat
technique sensitivity, specificity, PPV, NPV, and accuracy were
94.05%, 42.86%, 97.53%, 23.08%, and 92.00%, respectively. In
the case of CBNAAT sensitivity, specificity, PPV, NPV, and accuracy
in the detection of pulmonary TB in sputum samples were 97.02%,
28.57%, 97.02%, 28.57%, and 94.29%, respectively.
Conclusion: In respiratory samples, CBNAAT is more sensitive
than ZN smear microscopy and TrueNat. Positive CBNAAT, but
TrueNat and AFB microscopy negative results should be read
cautiously and be well correlated with the clinical and treatment
history of the patien
Diagnostic Accuracy between CBNAAT, TrueNat, and Smear Microscopy for Diagnosis of Pulmonary Tuberculosis in Doda District of Jammu and Kashmir- A Comparative Study
Introduction: The need for fast, precise diagnostic tests to identify active tuberculosis is essential, mainly in endemic nations such as India. An automated real-time Polymerase Chain Reaction (PCR) method for pulmonary tuberculosis (TB) detection known as the Cartridge Based Nucleic Acid Amplification Test (CBNAAT) or GeneXpert assay shows great promise as a complement to the TrueNat and conventional sputum microscopy techniques.
Aim: To compare sensitivity, specificity, Positive Predictive Value (PPV), and Negative Predictive Value (NPV) of CBNAAT with TrueNat and smear microscopy in the detection of Mycobacterium tuberculosis.
Materials and Methods: A cross-sectional comparative study on 175 patients with suspected pulmonary TB was conducted from June 2021 to November 2021 in a tertiary care hospital at Government Medical College, Doda District of Jammu and Kashmir, India. The sensitivity, specificity, PPV, NPV, and diagnostic accuracy for the diagnosis of tuberculosis were calculated for Acid Fast Bacilli (AFB) smear microscopy, TrueNat, and the GeneXpert and compared with each other. Statistical analysis of the data was conducted with Statistical Package for the Social Science (SPSS) version 20.0.
Results: Out of the total 175, 168 (96%) patients were TB positive by CBNAAT, 162 (92.6%) by TrueNat, and 148 (84.6%) as per smear microscopy. Sensitivity, specificity, PPV, NPV, and accuracy of Ziehl-Neelsen (ZN) stain in the detection of pulmonary TB in sputum samples were 86.31%, 57.14%, 97.97%, 14.81%, and 85.14%, respectively. Whereas in the case of the TrueNat technique sensitivity, specificity, PPV, NPV, and accuracy were 94.05%, 42.86%, 97.53%, 23.08%, and 92.00%, respectively. In the case of CBNAAT sensitivity, specificity, PPV, NPV, and accuracy in the detection of pulmonary TB in sputum samples were 97.02%, 28.57%, 97.02%, 28.57%, and 94.29%, respectively.
Conclusion: In respiratory samples, CBNAAT is more sensitive than ZN smear microscopy and TrueNat. Positive CBNAAT, but TrueNat and AFB microscopy negative results should be read cautiously and be well correlated with the clinical and treatment history of the patient