Virological and cytological changes in tears and conjunctiva of patients with COVID-19

Purpose: To analyze the presence of severe acute respiratory syndrome coronavirus 2 (SARS?CoV?2) in tears/conjunctival epithelium and assess the cytomorphological changes in the conjunctival epithelium of coronavirus disease 2019 (COVID?19) patients. Methods: In this pilot study, patients with moderate to severe COVID?19 were recruited from the COVID ward/intensive care unit of the institute. Tears and conjunctival swabs were collected from COVID?19 patients and sent to the virology laboratory for reverse transcription polymerase chain reaction (RT?PCR) testing. Conjunctival swabs were used to prepare smears, which underwent cytological evaluation and immunocytochemistry for SARS?CoV?2 nucleocapsid protein. Results: Forty?two patients were included. The mean age of participants was 48.61 (range: 5–75) years. Seven (16.6%) patients tested positive for SARS?CoV?2 ribonucleic acid in tears samples, four (9.5%) of which were positive on conjunctival swab by RT?PCR in the first test. Cytomorphological changes were observed significantly more in smears from patients with positive RT?PCR on tear samples, including bi?/multi?nucleation (p = 0.01), chromatin clearing (p = 0.02), and intra?nuclear inclusions (p < 0.001). One case (3.2%) showed immunopositivity for SARS?CoV?2; this patient had severe disease and the lowest Ct values for tear and conjunctival samples among all positive cases. Conclusion: Conjunctival smears from patients with COVID?19 revealed cytomorphological alterations, even in the absence of clinically significant ocular infection. However, viral proteins were demonstrated within epithelial cells only rarely, suggesting that although the conjunctival epithelium may serve as a portal for entry, viral replication is possibly rare or short?lived.

Correlation of C-Reactive Protein, Low Total Leucocyte Count and Platelet Count with Blood Culture in Neonates With Sepsis

Background: Neonatal sepsis is characterized by systemic signs and symptoms of generalised bacterial infection in the first four weeks of life. Early recognition and diagnosis of neonatal sepsis remains a challenge because of the variable and nonspecific clinical presentation. A combination of haematological and biochemical tests may provide a more rapid diagnosis of sepsis than blood culture which takes at least 24 to 48 hours for the results. Objectives: To study the correlation of parameters of sepsis screen with blood culture in neonates with clinical sepsis and or having significant risk factors for sepsis and To study the outcome of neonatal sepsis was our secondary aim.Material & Methods:The descriptive prospective study with cross sectional design was conducted on 100 neonates admitted with signs and symptoms of sepsis in the nursery ward and NICU of paediatric department of BebeNanki Hospital, GMC, Amritsar. Sepsis screen and blood culture (gold standard for neonatal sepsis diagnosis) and other relevant investigations were sent under strict aseptic conditions and treatment was started. S.CRP levels >1mg/dl, total leukocyte count < 5000 cells/cumm, platelets count < 1.5 lakhs/ µL were taken as positive significant (P <0.005) markers for neonatal sepsis. The data was tabulated and subjected to statistical analysis.Results:Positive CRP (>1mg/dl) were found to be highly significant (p<0.0001), Sensitivity, Specificity, PPV, NPV and Diagnostic accuracy were 93.33%,16.00%,76.92%,44.44% and 74.00% respectively. TLC <5000 were found to be significant (p<0.0001), Sensitivity, Specificity, PPV, NPV and Diagnostic accuracy were 65.33%,44.00%,77.78 %,29.73% and 60.00% respectively. Platelet count < 1.5 lakhs/ µL was found to be significant (p<0.0091), Sensitivity, Specificity, PPV, NPV and Diagnostic accuracy were 68.00%, 16.00%,70.83%,14.29% and 55.00% respectively.Conclusions:In developing countries like India, where blood culture investigations are limited, altered haematological parameters such as CRP, TLC, and Platelets counts can serve as quick, simple, economical methods to diagnose neonatal sepsis. Further studies with larger sample size are required to substantiate the results.

Prevalence and spectrum of iron deficiency anaemia in heart failure patients

Background: To study the prevalence and pattern of iron de?ciency (ID)in heart failure (HF) patients with or without anaemia.Methods: This is a single-centre observational study, conducted at a tertiary care hospital of Punjab. Patients were selected based on validated clinical criteria-Framingham criteria. The iron parameters were done during the study including serum iron, serum ferritin, total iron binding capacity, and transferrin saturation (TSAT), to diagnose iron deficiency anaemia. Anaemia was defined as haemoglobin (Hb) < 13g/dl in males and <12 g/dL in females, based on WHO definition. Absolute iron deficiency is defined as serum ferritin < 100 mg/L and functional ID was defined as normal serum ferritin (100�0 mg/L) with low TSAT (<20%).Results: A total of 120 patients of Heart Failure (54% males and 46% females) were studied. Most of the patients were of high-functional NYHA class (Class IV NYHA n=45). Iron Deficiency was present in 60% patients with 31.66% patients having absolute and 28.33% patients having functional ID. Nearly one-fifth of the patients were having ID but without anemia, signifying importance of workup of Iron deficiency other than haemoglobin levels.Conclusions: Study highlights the neglected burden of ID in HF patients in India. This study suggests further large-scale studies to better characterize this easily treatable condition and considering routine testing in future Indian guidelines.

Bacterial Isolates and their Antibiotic Sensitivity Pattern in Clinically Suspected Cases of Fever of Unknown Origin.

The present study was conducted on 100 suspected cases of fever of unknown origin to identify the prevalence of predominant bacterial microorganisms and their drug sensitivity pattern. The blood samples were subjected to conventional blood culture and BACTEC 9050 culture system. Out of 100 suspected cases, culture positivity was seen in 46% cases with 80.43% pathogenic bacterial isolates comprising of 54.05% gram positive and 45.94% gram negative isolates. Predominant gram positive isolates were coagulase negative Staphylococcus 35% followed by 30% Staphylococcus aureus with sensitivity to vancomycin (100%) and resistance to ampicillin, cloxacillin & cefalexin. Gram negative isolates were Salmonella typhi (29.41%) followed by E coli (17.64%) showing sensitivity to piperacillin/tazobactum and cefoperazone/sulbactum (90%) each and resistance to amoxicillin. BACTEC 9050 was observed to be sensitive(100%) as compared to conventional blood culture(67.56%) for cultural isolation of pathogenic organisms in clinical specimens.

Extrapulmonary Tuberculosis In M.M.I.M.S.R, Muallana Ambala: A Microbiological & Histopathological Study.

Clinical microbiological and histopathological confirmation plays a key role in the diagnosis of tuberculosis. The present study correlates Zeihl Nelson staining , Lowenstein Jensen culture media, Montoux test and histopathology in the diagnostic yield of extrapulmonary tuberculosis.Result of current study shows out of total 255 samples, 24 (9.4 %.) showed the presence of mycobacteria by either of the following methods: LJ culture media, ZN staining, histopathology and montoux test.

Growth of Very Low Birth-Weight Indian Infants During Hospital Stay.

Objectives: To evaluate the growth pattern of Very Low Birth Weight (VLBW) infants (birthweight <1500g) during hospital stay and to compare the growth of Small for gestational age (SGA) and Appropriate for gestational age (AGA) infants. Study design: Prospective observational study. Setting. Level III Neonatal Intensive Care Unit (NICU) in Northern India. Participants: A cohort of 97 VLBW infants, admitted to NICU at Sir Ganga Ram Hospital, from 1 January, 2007 to 31 July, 2008. Intervention/Measurement: Weight, length and head circumference (HC) were serially measured from birth till discharge and respective Z scores were calculated as per data from Fenton’s references. Growth was also assessed by superimposing these trends on Ehrenkranz’s postnatal growth charts. Results: The mean Z scores for weight, length and HC at birth were –1.17, –1.09 and –0.54, respectively. These decreased to –2.16, –2.24 and –1.35, respectively by discharge. Both SGA and AGA infants exhibited a decrease of approximately 1 Z score in all parameters. On postnatal charts, growth of infants remained at or above respective reference lines, except in those below 1000g at birth. Average daily weight gain after regaining birth weight was 15.18 ± 1.7 g/kg/d, whereas the increase in HC and length were 0.48 ± 0.2 cm/week and 0.60 ± 0.4 cm/week, respectively. These increments when compared to the intrauterine growth rates, indicated discrepant growth trends. Conclusions: VLBW infants suffered significant growth lag during NICU stay and exhibited disproportionately slow growth of HC and length.

Preliminary report on neonatal screening for congenital hypothyroidism, congenital adrenal hyperplasia and glucose-6-phosphate dehydrogenase deficiency: a chandigarh experience.

Objective To establish newborn screening in Indian scenario that could lay a framework for future such initiatives. Three disorders namely, congenital hypothyroidism (CH), congenital adrenal hyperplasia (CAH) and glucose-6- phosphate dehydrogenase deficiency (G-6-PDD) were selected for a preliminary study for newborn screening. Methods Heel-prick blood samples were collected from liveborn neonates at 24–48 h of birth as a part of a screening program after prior written consent from the parents. Blood levels of glucose-6-phosphate-dehydrogenase enzyme (G-6- PD), thyroid-stimulating hormone (TSH) and 17-α-OH progesterone (17-OHP) were measured using DELFIA time resolved fluoroimmunoassay. Results Six thousand eight hundred and thirteen (6,813) neonates (86.3%), out of a total of 7,893 live births in our institute during the period May’2007 through July’2009, were screened for CAH, CH and G6PD deficiency. Major reason for missing samples was early discharge of the neonates and admission to the neonatal intensive care unit. G-6-PD deficiency was confirmed in 61 cases, congenital hypothyroidism (CH) in 2 cases and congenital adrenal hyperplasia (CAH) in 1 neonate, accounting for an incidence of 1/112 for G-6-PDD, 1/ 3400 for CH and 1/6813 for CAH. Conclusions Preliminary data on prevalence of various genetic disorders viz. G-6-PDD, CH and CAH in the population of this region revealed that G-6-PDD is most prevalent disorder followed by CH and CAH. More efforts need to be undertaken to create awareness and emphasis on significance of preventive testing to make screening a successful program in India.