Browsing by Author "Bhattacharya, Sanjay"

Now showing 1 - 7 of 7
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    Candida Parapsilosis in peripheral blood.
    (2014-10) Arora, Neeraj; Parihar, Mayur; Mishra, Deepak; Bhattacharya, Sanjay; Chakrapani, Anupam
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    Clinical microbiology: Should microbiology be a clinical or a laboratory speciality.
    (2010-04) Bhattacharya, Sanjay
    Clinical microbiology is a specific combination of knowledge, attitude and practice aimed at direct clinical involvement in infectious disease management using the core principles of medical microbiology and clinical medicine. In this article certain areas in microbiology, where a more proactive approach could make a significant difference in clinical outcome has been delineated. The article reiterates the role of a medical microbiologist in a hospital setting. The practices described are the norm in well-organized hospitals. These areas include management of positive blood cultures, management of patients in intensive care units (ICUs), hospital infection control and public health microbiology, development of hospital and community anti-infective policy, organization of clinical-microbiological meetings and provision of emergency out-of-hours service. The implementation of this clinical approach and increased engagement with direct patient care would require changes in existing training structure and working patterns of medical and technical staffs in microbiology.
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    How to develop an in-house real-time quantitative cytomegalovirus polymerase chain reaction: Insights from a cancer centre in Eastern India.
    (2015-10) Harishankar, Anusha; Chandy, Mammen; Bhattacharya, Sanjay
    Development of a reliable, cost-effective cytomegalovirus quantitative polymerase chain reaction (QPCR) is a priority for developing countries. Manufactured kits are expensive, and availability can be inconsistent. Development of an in-house QPCR kit that is reliable and quality assured requires significant effort and initial investment. However, the rewards of such an enterprise are manifold and include an in-depth understanding of molecular reactions, and expertise in the development of further low-cost molecular kits. The experience of an oncology centre in Eastern India has been shared. Hopefully, this would provide a brief roadmap for such an initiative. Staff with adequate understanding of molecular processes are essential along with vital infrastructure for molecular research and development.
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    Microbiology, infection control and infection related outcome in pediatric patients in an oncology center in Eastern India: Experience from Tata Medical Center, Kolkata.
    (2014-10) Bhattacharyya, Arpita; Krishnan, Shekhar; Saha, Vaskar; Goel, Gaurav; Bhattacharya, Sanjay; Hmar, Lalawmpuia
    CONTEXT: Infection is a major determinant in the outcome of patients with cancer. AIMS: The aim was to know the epidemiology and outcome of patients with cancer in a cancer care center in Eastern India. SETTINGS AND DESIGN: Retrospective study of pediatric patients in Tata Medical Center, Kolkata, India. Methods: Patients (n = 262) between the age group of 0 and 18 years were reviewed for infections and infection‑related outcome (January to December 2013). STATISTICAL ANALYSIS: Modified Wald method was used to determine confidence interval of proportions. RESULTS: Gram‑negative bacteria were found to be the most common cause of bloodstream infections (BSIs) (56.4%), followed by Gram‑positive cocci (34.5%), and Candida species (9.1%). Carbapenem‑resistance was noted among 24% of Gram‑negative bacilli (GNB), and extended‑spectrum beta‑lactamase among 64% of GNBs. A single case of Vibrio cholerae septicemia was also noted. No case of vancomycin‑resistant Enterococcus was observed, whereas only two cases of methicillin‑resistant Staphylococcus aureus bacteremia (1/3 of all Staphylococcus aureus bacteremia) were detected. Escherichia coli, followed by Klebsiella, Pseudomonas, and Acinetobacter were the predominant organisms detected in BSIs. Among Candida spp. BSIs no resistance to caspofungin, amphotericin B, Voriconazole was noted. Candida tropicalis was the most common isolate, and 1 isolate of Candida glabrata showed dose‑dependent sensitivity to fluconazole. Three out of 25 patients died of multi‑drug resistant Gram‑negative bacteria (12%) in 2013. Seventeen patients had radiological evidence of invasive fungal infections (no mortality was noted). CONCLUSIONS: Periodic review of infection‑related data, as well as infection control practices, is essential to optimize clinical outcome in patients with pediatric malignancies.
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    Role of water quality assessments in hospital infection control: Experience from a new oncology center in eastern India.
    (2014-07) Bhalchandra, Ramkrishna; Chandy, Mammen; Ramanan, Venkata Raman; Mahajan, Aseem; Soundaranayagam, Jeeva Ratnam; Garai, Subrata; Bhattacharya, Sanjay
    Water quality assessment and timely intervention are essential for health. Microbiology, total dissolved solids (TDS) and free residual chlorine were measured for water quality maintenance in an oncology center in India. Impact of these interventions over a period of 22 months has been demonstrated with four cardinal events. Pseudomonas in hospital water was controlled by adequate chlorination, whereas high TDS in the central sterile supply department water was corrected by the installation of electro-deionization plant. Contaminated bottled water was replaced using quality controlled hospital supply. Timely detection and correction of water-related issues, including reverse osmosis plant was possible through multi-faceted approach to water quality.