Showing 564 results for Research Article: Original Paper
Dr Priyadarshini Kumaraswamy Rajeswaran, Dr Preethi Muthusamy Sundar, Dr Prasanna Nedungadi Kumar, Dr Karthikeyan Shanmugam,
Volume 19, Issue 2 (3-2025)
Abstract
Background and Objectives: Several haematological indicators have been linked to the intensity and course of COVID-19 infection, including platelets, white blood cell total count, lymphocytes, neutrophils (as well as the neutrophil-lymphocyte and platelet-lymphocyte ratios), and hemoglobin. The purpose of this study was to assess the utility of cell population data (CPD) of lymphocytes and monocytes parameters in the early diagnosis of SARS-CoV-2 infection.
Methods: The baseline complete blood count examination for 222 patients with proven COronaVIrus Disease of 2019(COVID-19) (case group) and 161 patients with negative for COVID-19 investigations (control group). Lymphocyte and monocyte CPD were calculated in both the groups. The independent t-test was used to compare the mean values between the two groups Receiver operating characteristic analysis was performed to evaluate the discriminating capacity of the individual parameters.
Results: The analysis revealed that Standard Deviations of Monocyte Volume (SDMV) and Lymphocyte Conductivity (SDLC) showed highest significance in predicting SARS-CoV-2 infection. SDMV had a sensitivity of 93.7% and SDLC had a sensitivity of 80.6% at cut-off values of 22.25 and 10.9, respectively. In the case group, 49 of the 222 patients were treated in the intensive care unit showed higher SDMV when compared with the remaining 173 patients who were asymptomatic or mildly symptomatic (p-value <0.03).
Conclusion: Our study demonstrates that SDMV and SDLC can serve as reliable and cost-effective markers for early prediction of SARS-CoV-2 infection. Furthermore, SDMV shows potential as a prognostic biomarker. These findings highlight the potential utility of CPD parameters in COVID-19 diagnosis and prognosis.
Anuradha Saini, Anjali Sharma, Mukul Singh, Shaily Goyal, Maninder Narang, Sunil Ranga,
Volume 19, Issue 2 (3-2025)
Abstract
Background & objectives: Sepsis is one of the most common cause of mortality among patients who are critically ill and in Intensive Care Units(ICU). Bacterial infection or sepsis leads to an increase in Neutrophilic CD64(nCD64) expression on activated polymorphonuclear leukocytes(PMNs). Early diagnosing of sepsis is very important in order to start timely and specific treatment. The availability of a rapid laboratory test with high specificity for sepsis in adult patients could aid in therapeutic decision making and reduce unnecessary antibiotic use.
Methods: Sepsis patients diagnosed as per sepsis-3 definition were included in this study. 2 ml blood sample was collected in EDTA & plain vial each for evaluation of nCD64, Procalcitonin(PCT) & high sensitivity C-reactive protein(hS-CRP). The samples were run on Flow cytometer, Nephelometer and Chemiluminescence for nCD64, hS-CRP and PCT respectively.
Result: The Positive Predictive Value(PPV) of nCD64 for prediction of sepsis was 92.68% and the Negative Predictive value(NPV) was 94.87%. Receiver operating curve(ROC) was plotted for indicating the diagnostic accuracy of nCD64(≥1.8), hS-CRP(≥3 mg/L) and PCT(≥0.4 ng/mL). Area under the curve(AUC) for nCD64 was highest[0.938(95%CI=0.876-0.999)] followed by hS-CRP[0.888(95%CI=0.807-0.968)] and PCT [0.850(95%CI =0.759-0.941)].
Conclusion: These findings are suggestive of the possibility that nCD64 determination was a useful tool for diagnosing infection in patients with septic syndrome, with a performance superior to that of hS-CRP and PCT.
Sahar Siddiqui, Mohd Suhail Lone, Umer Qureshi, Rayees Khanday,
Volume 19, Issue 2 (3-2025)
Abstract
Background: Staphylococcus aureus (S. aureus) is a common pathogen that causes both community and hospital-acquired infections Objectives: To identify clinico-microbial profiles of S aureus acquired in the community and in the hospital. Methods This study was conducted from January 2021 to December 2022 in Postgraduate Department of Pediatrics Children Hospital Srinagar J&K on patients aged one month to 18 years suspected of having S. aureus sepsis or disseminated disease. Results: There were 56 patients identified with S aureus septicemia (SAS) over the study period; 37(66.10%) had community acquired S aureus sepsis (CASS) and 19(33.90%) hospital acquired S aureus sepsis (HASS). 35(62.50%) affected belonged to male gender; 40(71.43%) patients belonged to rural area. Localized musculoskeletal symptoms (91.90%) were the most commonpresentation P value < 0.05. Pleuropulmonary disease and necrotizing soft tissue disease were significantly associated with patients of HASS and CASS respectively. The common disease presentation was pneumonia followed by abscess. Septic shock, respiratory failure, multi organ dysfunction, etc were the common complications seen more often in HASS. Out of 50 patients who had SAS in cultures, 48 were Methicillin resistant S aureus (MRSA) and 2 were Methicillin sensitive S aureus (MSSA). The survival rate from CASS was 94.60% and from HASS was 89.50% Conclusions: CASS and HASS affects children, is multifocal, and has high morbidity associated. The sensitivity pattern of Staphylococcus aureus in our settings as well as globally has undergone a dramatic change with rise in proportion of Methicillin resistance and needs to been addressed urgently.
Shayosree Sarkar, Sonal Chavan, Geetika Agrawal, Heena Rahangdale, Sunanada Zodpey,
Volume 19, Issue 2 (3-2025)
Abstract
Background: Burkholderia cepacia complex is are opportunistic nosocomial pathogen that can cause severe infections in neonates, involving the respiratory tract, the urinary tract and bloodstream infections. Therefore, it can lead to outbreaks through different sources. This study was conducted with the aim of early detection and successful control of an outbreak caused by Burkholderia cepacia complex.
Methods: A cross-sectional study was conducted in a tertiary care hospital over a one-month period, July 2023. Blood culture samples of 11 neonate’s yielded growth of non-fermenting, oxidase-positive and motile, Gram-negative bacilli. Isolates were provisionally identified to be Burkholderia cepacia complex by conventional biochemical tests and antimicrobial susceptibility patterns. The increased, repeated, and continuous isolation of the same isolate raised the suspicion of an outbreak in the neonatal intensive care unit. Active surveillance was undertaken to trace the source and contain the bacteria. Identification of isolates was confirmed by VITEK 2 (BioMérieux, France) compact microbiology analyser.
Results: Surveillance revealed sources of Burkholderia cepacia complex for all 11 neonates. Sources of infection could be traced to intravenous catheters and cradles of the neonates and operation theatre beds, and instrument trolleys of the labour room where the babies were delivered. All the environmental isolates showed strain-relatedness of Burkholderia cepacia complex with the clinical isolates, along with a similar antibiotic susceptibility pattern. Timely interventions aided in the control of the outbreak.
Conclusion: This study presents the importance of the hospital infection control team in the management of an outbreak of Burkholderia cepacia complex in neonates.
