Correlation of sociodemographic factors and intestinal parasites in pregnant women

Background: Pregnant women often experience more severe intestinal parasitic infections than their non-pregnant counterparts. Intestinal parasitic infections also disturb pregnancy at the maternal and fetal level. Objective of the study was to find out the prevalence of intestinal parasites in pregnant women and its relationship with various socio-demographic factors.Methods: A single stool specimen was collected. A saline and iodine mount was examined microscopically to demonstrate the intestinal parasites. Formol ether Concentration technique was performed to increase the yield of the eggs and larvae. Modified acid-fast staining was done for opportunistic parasitic infections.Results: In this study 300 pregnant women were screened for presence of intestinal parasites. The prevalence of intestinal parasites was 42.67%. Women who practiced hand washing regularly and had knowledge about parasites had lesser infection. The dietary practice of taking green leafy vegetables had protective effect during pregnancy. The prevalence of intestinal parasites was almost same in both rural and urban women. Higher prevalence of intestinal parasites was found in lower socioeconomic class. Women who used river as source of water supply had slightly more prevalence than those who used municipal water. The prevalence of hookworm infection was more in women who never wore sandals.Conclusions: The high prevalence of intestinal parasites in the pregnant women indicates faecal pollution of soil and domestic water supply.  Education and awareness regarding intestinal parasites need to be done during their routine antenatal visits. Emphasis should be made on consistent hand washing, consumption of washed leafy vegetables and use of footwear. Deworming of pregnant women should be considered in the national guidelines

Study of resistance pattern of isolated micro-organisms towards commonly used anti-microbial agents in medical intensive care unit of a tertiary care teaching hospital

Background: The objective of the study was to find out different types of biological samples from admitted patients tested for culture and sensitivity (C&S), prevalence of different types of organisms isolated from those samples, and to analyze the resistance pattern of those isolated organisms against commonly used or tested anti-microbial agents (AMAs).Methods: Following institutional ethics committee approval and written informed consent, adult patients of both genders, receiving AMAs were enrolled from June 2014 to July 2015 and followed up daily till they were in medical intensive care unit (MICU). Demographic data, diagnosis, culture-sensitivity (antibiogram) and other investigation reports and treatment details were recorded. Descriptive statistical analysis of collected data was done.Results: Of the 514 samples (from 600 patients enrolled) sent for C&S testing, 143 were reported as sterile while from the rest 371 samples, 504 organisms were isolated; commonly isolated organisms were Pseudomonas aeruginosa (30%), Acinetobacter baumannii (23%), Klebsiella pneumoniae (16%), Providencia sp. (7.1%), Escherichia coli (5.7%), and Enterobacter sp. (4.2%). Samples were sent in 63% of enrolled patients, the commonest being broncho-alveolar lavage (48% of total). Microbial resistance was high for cephalosporins (ceftriaxone, cefepime, ceftazidime), carbapenems (meropenem, imipenem), penicillins (piperacillin), quinolones (ciprofloxacin, levofloxacin), aminoglycosides (gentamicin, netilmicin, amikacin) and cotrimoxazole. Most organisms were sensitive to colistin (100%), polymyxin B (92%) and tigecycline (69%).Conclusions: The information regarding commonly isolated organisms and their resistant pattern would aid in rational selection of AMAs and thus the present study is useful to clinicians managing MICU and the hospital infection committee to plan future policies regarding AMA use in MICU

Prevalence of pulmonary tuberculosis in patients with diabetes mellitus and lower respiratory tract infection

Background: Pulmonary Tuberculosis (PTB) still remains a global public health problem. Diabetes Mellitus (DM), is a metabolic disorder characterized by hyperglycaemia. Diabetes along with poor glycaemic control leads to an immune compromised state. As prevalence of both TB and DM is increasing in India, this association of PTB and DM may prove a threat to TB control program. Aims and objectives of the study was to detect prevalence of pulmonary tuberculosis in patients with DM and Lower Respiratory Tract Infection (LRTI).Methods: Sputum specimen from consecutive 250 known diabetic adult patients with type 2 diabetes and clinical evidence of LRTI were processed for microscopy, solid culture and Xpert MTB/RIF assay. Clinical findings, duration of DM, regularity of treatment and recent fasting blood glucose level were noted.Results: TB was detected in 31(12.8%) patients. Microscopy, culture and Xpert assay were positive in 14(5.6%), 29(11.6%) and 24(9.5%) cases respectively. Culture detected seven cases more than Xpert assay. Two additional cases were detected by Xpert assay than culture. Rifampicin resistance was detected in seven (29.17%) cases by Xpert assay. TB detection rate was higher in patients with more than two weeks of cough (14.38%), history of tuberculosis (15.9%), hyperglycemia (13.9%) and significantly higher in those with irregular anti-diabetic treatment (35.7%).Conclusions: Irregular anti-diabetic treatment, hyperglycaemia and history of tuberculosis were strongly associated with pulmonary TB. Xpert assay should be used as the initial diagnostic test for detection of tuberculosis as well as rifampicin resistance in diabetic patients by TB control programme

Impact of an International Nosocomial Infection Control Consortium multidimensional approach on central line-associated bloodstream infection rates in adult intensive care units in eight cities in India

SummaryObjectiveTo evaluate the impact of the International Nosocomial Infection Control Consortium (INICC) multidimensional infection control approach on central line-associated bloodstream infection (CLABSI) rates in eight cities of India.MethodsThis was a prospective, before-and-after cohort study of 35650 patients hospitalized in 16 adult intensive care units of 11 hospitals. During the baseline period, outcome surveillance of CLABSI was performed, applying the definitions of the CDC/NHSN (US Centers for Disease Control and Prevention/National Healthcare Safety Network). During the intervention, the INICC approach was implemented, which included a bundle of interventions, education, outcome surveillance, process surveillance, feedback on CLABSI rates and consequences, and performance feedback. Random effects Poisson regression was used for clustering of CLABSI rates across time periods.ResultsDuring the baseline period, 9472 central line (CL)-days and 61 CLABSIs were recorded; during the intervention period, 80898 CL-days and 404 CLABSIs were recorded. The baseline rate was 6.4 CLABSIs per 1000 CL-days, which was reduced to 3.9 CLABSIs per 1000 CL-days in the second year and maintained for 36 months of follow-up, accounting for a 53% CLABSI rate reduction (incidence rate ratio 0.47, 95% confidence interval 0.31–0.70; p=0.0001).ConclusionsImplementing the six components of the INICC approach simultaneously was associated with a significant reduction in the CLABSI rate in India, which remained stable during 36 months of follow-up

Cutaneous bacterial infections: Changing trends in bacterial resistance

Normal skin is colonized with resident bacterial flora, usually Staphylococcus epidermidis, other coagulasenegative Staphylococci, Corynebacteria and Propionibacterium acnes. These bacteria form a protective layer and prevent the adhesion and multiplication of potential pathogens

Estimation of prevalence and risk factors for clostridium difficile infection: a neglected pathogen in a tertiary care setting in India

Introduction: Clostridium difficile is a Gram positive spore bearing anaerobic bacillus increasingly associated with both community and hospital acquired colitis and diarrhoea. Among all the risk factors, inclusive of the host and the environmental factors, antibiotics are the most important ones, as validated by various studies. Patients receiving antibiotics and other drugs such as immunosuppressives, chemotherapeutics and proton pump inhibitors may also be important risk factors. The present study was planned to find out the prevalence and risk factors for Clostridium difficile associated diarrhoea (CDAD). Material and Methods: After taking approval from ethics committee ,150 patients with antibiotic associated diarrhoea were taken as study group and 50 patients with exposure to antibiotics but who did not develop diarrhoea were taken as controls. Stool specimens were processed for both culture on Cycloserine Cefoxitin Fructose Agar (CCFA) and toxin detection by IVD Tox A+B ELISA. Risk factor analysis was done by calculating odds ratio and significance of p value among various parameters related to drugs and other factors. Result: Prevalence of CDAD in the present study was 8.67%.Third generation cephalosporins, clindamycin, aminoglycosides, quinolones and trimethoprim sulfamethoxazole were significant risk factors for both antibiotic associated diarrhoea (AAD) and Clostridium difficile associated diarrhoea (CDAD).Use of proton pump inhibitors, immunosuppressants and prolonged stay in the hospital were other significant risk factors associated with CDAD. Conclusion: Although CDAD occurs at a lower frequency in this setting, rational antibiotic policy and infection control measures should be followed to prevent its occurrence and nosocomial spread

Diagnosis of pediatric pulmonary tuberculosis with special reference to polymerase chain reaction based nucleic acid amplification test

Objective: To determine the utility of polymerase chain reaction (PCR) for diagnosing pediatric pulmonary tuberculosis (PPTB). Method: A prospective cross-sectional study was carried out on 100 children less than 14 years of age, with strong clinical suspicion and radiological evidence suggestive of pulmonary tuberculosis (TB). Sputum samples/gastric lavage were collected. Direct smears and culture on Lowenstein Jensen (LJ) media were performed. DNA extraction and amplification was performed using Genei™ Amplification Reagent set for Mycobacterium tuberculosis (MTB) (by Genei, Bangalore, India). This test is based on the principle of single-tube nested PCR which amplifies the repetitive insertion sequence IS6110. Results: When compared with culture, sensitivity and specificity of PCR was 93.55% and 92.75%, respectively. The PPV was 85.29% and the NPV was 96.97%. When intention to treat (ITT) was used as the standard, sensitivity, specificity, PPV and NPV of PCR was 47.88%, 93.1%, 94.4%, and 42.19%, respectively, and that of culture was 40.85%, 100%, 100% and 40.85%, respectively. Against response to treatment (RTT), PCR demonstrated sensitivity, specificity, PPV and NPV of 50.9%, 93.1%, 93.33% and 50%, respectively, and for culture it was 43.64%, 100%, 100% and 48.33%, respectively. Conclusion/recommendation: The present study reinforces better case detection rate with PCR-based nucleic acid amplification test as compared with microscopy and culture in pediatric pulmonary TB. PCR showed a higher correlation with clinical diagnosis as compared with microscopy and solid culture. Hence, a molecular platform should be the test of choice for detecting PPTB

Prevalence of methicillin-resistant Staphylococcus aureus (MRSA)in community-acquired primary pyoderma

Background: Although prevalence of MRSA strains is reported to be increasing, there are no studies of their prevalence in community-acquired primary pyodermas in western India. Aims: This study aimed at determining the prevalence of MRSA infection in community-acquired primary pyodermas. Methods: Open, prospective survey carried out in a tertiary care hospital in Mumbai. Materials and Methods: Eighty-six patients with primary pyoderma, visiting the dermatology outpatient, were studied clinically and microbiologically. Sensitivity testing was done for vancomycin, sisomycin, gentamicin, framycetin, erythromycin, methicillin, cefazolin, cefuroxime, penicillin G and ciprofloxacin. Phage typing was done for MRSA positive strains. Results : The culture positivity rate was 83.7%. Staphylococcus aureus was isolated in all cases except two. Barring one, all strains of Staphylococcus were sensitive to methicillin. Conclusions: Methicillin resistance is uncommon in community-acquired primary pyodermas in Mumbai. Treatment with antibacterials active against MRSA is probably unwarranted for community-acquired primary pyodermas

Utility of light-emitting diode microscopy for the diagnosis of pulmonary tuberculosis in HIV infected patients

Objective: To determine the utility of light-emitting diode fluorescent microscopy (LED-FM) for the diagnosis of pulmonary tuberculosis (PTB) in HIV-infected patients. Material and methods: A cross-sectional study was performed on 400 HIV-infected, clinically or radiologically suspected PTB patients. Two sputum specimens were collected from each patient. Two direct smears were prepared from each sputum specimen. One was stained by ZN method and another by auramine-O method and reported as per the Revised National Tuberculosis Control Programme (RNTCP) guidelines. LED-FM stained smears were reported by two readers. All specimens were cultured on LJ medium after digestion and decontamination. Address and contact details of all the patients were recorded in case record form. They were contacted for follow-up if required. Results: Of the 800 sputum specimens processed, 130 were positive by LED-FM method and 33 were positive by ZN method; 77 specimens showed growth of MTB on LJ medium. When compared with solid culture as a reference standard, LED-FM has a sensitivity of 67.53%, specificity of 88.71%, PPV of 40% and NPV of 96.08%. Seventy-eight LED-FM positive and culture negative specimens had scanty grading. Of these, 15 were confirmed as having PTB as they responded to anti-TB treatment. The concordance between two readers was 98.75%. Conclusion: LED-FM can be a good screening test for the diagnosis of PTB in HIV-infected patients. However, all scanty grade positive smears need to be confirmed by WHO approved gold standard