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   Table of Contents - Current issue
July-September 2022
Volume 14 | Issue 3
Page Nos. 91-127

Online since Friday, August 26, 2022

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State of the globe: Computed tomography and bronchoscopy for improved diagnosis of tuberculosis in India p. 91
Suman Thakur, Vivek Chauhan, Sunil Kumar Raina
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Laboratory cost analysis of conventional and newer molecular tests for diagnosis of presumptive multidrug-resistant tuberculosis patients Highly accessed article p. 93
Raj Narayan Yadav, Ajoy Kumar Verma, Gaurav Kaushik
Introduction: Tuberculosis (TB) remains a deadliest infectious disease. Lack of rapid test with low cost is one of the important challenges to eradicate the TB. The objective of the study was to analyze the laboratory costs of conventional and newer molecular tests, for diagnosis of presumptive multidrug-resistant TB (MDR-TB) patients. Methods: A detailed laboratory cost of various conventional tests (Ziehl − Neelsen [ZN] microscopy, light-emitting diode-fluorescent microscopy [LED-FM], culture and drug susceptibility testing [DST] using solid Lowenstein–Jensen media and liquid media [BACTEC MGIT 960]) was compared with rapid methods (GenoType MTBDRplus line probe assay [LPA] and GeneXpert MTB/RIF assay). Laboratory cost was also calculated in terms of cost per TB and MDR-TB case detected by using different diagnostic scenarios. Results: Cost per test for ZN microscopy, LED-FM, LPA, GeneXpert MTB/RIF assay, solid culture plus DST, liquid culture plus DST was found as $2.5 (INR 156.8), $2.0 (INR128.9), $18.6 (INR1210), $13.8 (INR 895.2), $21.5 (INR 1396.6), and $29.1 (INR 1888.2), respectively. The laboratory cost for detecting TB and MDR-TB by diagnostic scenarios involving molecular DST was found to be less as compared to involving only conventional liquid culture-based test. Conclusions: The implementation of rapid molecular tests with selective use of liquid culture-based DST may be less in cost as compared to the use of culture-based DST alone, at high burden reference TB laboratory.
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A randomized clinical trial comparing triple therapy versus non-bismuth based quadruple therapy for the eradication of Helicobacter Pylori in Kuwait p. 99
Ahmad Alfadhli, Mohamed Alboraie, Mostafa Afifi, Abhijit Dangi
Introduction: Helicobacter pylori-induced chronic infection is associated with peptic ulcer, chronic gastritis, gastric cancer, and increasing antibiotic resistance. We aimed to evaluate the efficacy of clarithromycin-based triple therapy and non-bismuth based quadruple therapy for eradicating H. pylori in patients with chronic gastritis in Kuwait. Methods: We enrolled a total of 603 treatment-naive dyspeptic patients with gastric biopsy-proven chronic gastritis secondary to H. pylori in a prospective, open-label, randomized study. Patients were randomized into two groups: a group received the standard triple therapy (omeprazole, amoxicillin, and clarithromycin) for 14 days and a group received quadruple therapy (omeprazole, amoxicillin, clarithromycin, and metronidazole) for 14 days. All patients were tested for the eradication of H. pylori by carbon-13 urea breath test 1 month after eradication therapy. Results: The overall eradication rate was 63.2%. The eradication rates in intention-to-treat (ITT) and per protocol (PP) population were 58.4% and 64.6%, respectively, in triple therapy group. In the quadruple therapy group, the eradication rates in ITT and PP population were 68.0% and 78.5%, respectively, with a statistically significant higher eradication rate in patients treated by quadruple therapy than the triple therapy (P < 0.01). Multivariate logistic regression analysis revealed that treatment regimen was the only significant predictor for successful H. pylori eradication. The most common adverse events were abnormal taste, headache, dizziness, and abdominal pain. Conclusion: Non-bismuth based quadruple therapy is more effective than standard clarithromycin-based triple therapy for eradicating H. pylori in patients with chronic gastritis. Identifier: NCT04617613
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Fertility desires and its predictors among persons living with HIV in a secondary health facility in Northcentral Nigeria p. 106
Chikwendu Amaike, Tolulope Olumide Afolaranmi, Blessing Adaku Amaike, Hadiza Abigail Agbo, Olumide Abiodun
Introduction: Among people living with HIV (PLHIV), fertility desire which is the desire to have more children is increasing due to the improvement in quality of life and survival resulting from anti-retroviral treatment and also improved sexual and reproductive health services. Fertility desires can result in increased risk of HIV transmission, especially in unprotected heterosexual intercourse. There is limited information regarding the fertility desires and predictors among PLHIV in our environment. Methods: This study was aimed at assessing the fertility desires and predictors in PLHIV in Northcentral Nigeria. Study was descriptive cross-sectional. Semi-structured interviewer administered pretested questionnaires was used to get information from 170 PLHIV accessing care in a secondary health-care facility selected by the systematic sampling technique. Data were analyzed using the SPSS software version 23.0. At 95% confidence interval (CI), a P < 0.05 was considered to be statistically significant. Chi-square and logistic regression. Results: Fertility desire was found among 64.1% of the respondents. Younger age (odds ratio [OR] = 0.2270; 95% CI = 0.0662–0.7791, P = 0.0184), having no child or a smaller number of children (OR = 0.0432; CI = 0.0046–0.4050; P = 0.0059) and suppressed viral loads (OR = 4.1069; CI = 1.1650–14.4784; P = 0.0280) were the predictors for fertility desire. Conclusion: This study showed that PLHIV had high fertility desires but do not know any safe method of conception, hence intensified effort should be made by primary care providers and other health-care workers to include sexual and reproductive health counselling during routine HIV clinic visits to enable PLHIV make informed decision about their fertility desires.
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Respiratory syncytial virus infection among adults after hematopoietic stem cell transplantation p. 112
Sameer Abdul Samad, Jyoti Jethani, Lalit Kumar, Aashish Choudhary, Megha Brijwal, Lalit Dar
Introduction: Respiratory syncytial virus (RSV) is a common cause of morbidity among hematopoietic stem cell transplant (HSCT) recipients, with RSV-associated lower respiratory tract infection carrying high mortality rates. There have been no large studies till date, describing the incidence, clinical features, and outcomes of RSV infection among adult HSCT recipients in India. Methods: A prospective cohort of 100 adults who underwent HSCT was followed up for a maximum period of 18 months starting from the date of transplantation for any episode of respiratory tract infectious disease (RTID). Respiratory samples were collected for laboratory confirmation of the presence and subtyping of RSV by real-time reverse transcriptase-polymerase chain reaction. Results: The study population comprised of 66% (66/100) males and 34% (34/100) females. Autologous HSCT recipients constituted 78% (78/100) and allogeneic HSCT recipients constituted 22% (22/100) of the study population. The incidence of RSV-RTID among adults after HSCT was 0.82/100 patient months. Most cases occurred during the winter season and the predominant subtype was RSV-A (9/11, 81.8%). Lower RTID was the most common clinical diagnosis made at presentation (9/11, 81.8%). Female gender was predictive of RSV-RTID (log rank P = 0.002). All the RSV-RTID episodes recovered completely without targeted therapy. Conclusion: RSV is a significant cause of morbidity among adult HSCT recipients in India. Prophylaxis and treatment measures need to be instituted after a proper risk-benefit assessment. Longitudinal studies with larger sample sizes are needed to confirm these results.
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Cryptogenic liver abscess caused by a K1 serotype Klebsiella pneumoniae isolate p. 117
John J Psonis, Yamil Michelen, Kasturi Banerjee, Bettina C Fries, Sutthichai Sae-Tia
Hypervirulent Klebsiella pneumoniae (hvKp) is a common cause of pyogenic liver abscesses in Asia but is quite uncommon in North America. Among the cases described in North America, only occasional reports have described molecular strain typing to confirm the K1 strain as the causative agent. We report a 56-year-old Hispanic female with no previous intra-abdominal pathology and no recent travel, who presented with subacute abdominal pain and developed bacteremia and monomicrobial pyogenic liver abscess due to a community-acquired K1 serotype K. pneumoniae isolate. In this case, the infection was recognized early, so the patient was successfully treated with percutaneous drainage and prolonged antibiotic therapy. Hvkp can cause severe invasive disease with high morbidity and mortality, and the recent emergence of multidrug resistance in these strains poses a serious threat to public health. In addition, the isolation of a K1 K. pneumoniae strain from a cryptogenic liver abscess in a Hispanic patient with no epidemiologic risk factors raises concern for a wider spread of the hypervirulent strain beyond Asian populations. Therefore, a high index of suspicion for hvKp infection in the Hispanic population can be crucial as the hypervirulent strain is likely to cause severe metastatic infection with significant morbidity and mortality.
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Complicated ulceroglandular tularemia p. 120
Branko Brmbolic, Jelica Grebenarović, Uroš Karić
A 52-year-old woman presented with a tender swelling in the right axilla, fever, a headache, nausea, and general weakness. On examination, she was found to have lymphangitis on the right arm and red papules on the 1st and 2nd fingers of the right hand. She had had prepared wild rabbit stew 5 days before disease onset. Serology and an ultrasound of the right axilla confirmed the diagnosis of ulceroglandular tularemia. The lymphadenitis did not resolve after streptomycin treatment so an incision was made and 30 cc of purulent fluid drained. Over the course of the next 3 months, the fluid continued to drain. A radiographic fistulography was performed and it revealed a short main channel with a few long channels of varying caliber branching out from it, all terminating in a conglomerate of necrotic axillary lymph nodes. The lesions healed spontaneously and completely over the following 12 months without additional antibiotic therapy. Radiographic fistulography can help plot the course of the fistula/fistulas and demonstrate the anatomic features of the lesion in resource poor settings.
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Multiple punched out ulcers and scars over glans: A common disease at uncommon site p. 122
Pratik Dey, Sudip Mandal, Subhasmita Baisya, Subhadeep Mallick
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An unusual presentation of malarial infection: Acute respiratory distress syndrome p. 123
Gladwin Jeemon
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Gram staining: A simple effective tool for diagnosis of nocardiosis p. 124
Nandakishore Baikunje, U Pratibha Bhat, Sruthi Vinayan
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Invasive listeriosis: Molecular determinants of virulence and antimicrobial resistance p. 125
Naveen Kumar, Angel T Miraclin, Karthik Gunasekaran, Balaji Veeraraghavan
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2008 Journal of Global Infectious Diseases | Published by Wolters Kluwer - Medknow
Online since 10th December, 2008