Estimation of 10-Year Fracture Risk with and without Bone Mineral Density in Patients with Rheumatoid Arthritis

Rheumatoid arthritis (RA) is the most common inflammatory arthritis affecting 0.5-1.0% of the general population worldwide and although RA is properly considered a disease of the joints, it can cause a variety of extra-articular manifestations. This study was performed to find out any discrepancy in fracture risk estimates with and without bone mineral density (BMD) in rheumatoid arthritis (RA) patients. This observational cross-sectional study was carried out in the Department of Rheumatology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Bangladesh from July 2013 to July 2015. Total 65 consecutive patients with RA fulfilling ACR/EULAR criteria aged 40-90 year were recruited. Ten year fracture risk of these patients was evaluated by the FRAX score with and without BMD and differences were observed. FRAX score without BMD revealed that major fracture risk was low in 58(89.2%) patients, moderate in 7(10.8%) patients but re-estimation with BMD revealed that 55(84.6%) patients remained in low risk group, 8(12.3%) patients in moderate risk group and 2(3.1%) patients went to the high risk group. In case of hip fracture risk without BMD, risk was low in 58(89.2%) patients, high in 7(10.8%) patients; but with BMD, 50(76.9%) patients remained in low risk group but risk of 15(23.1%) patients became high. Almost all the high risk patients (93.3%) were ≥55 years of age. Increasing age, female sex, disease duration and use of steroid were positively correlated with increased FRAX score where as high BMI and high BMD were associated with low FRAX score. But in multivariate analysis it was found that only relation with age was at statistically significant level. Significant numbers of patients with rheumatoid arthritis have high risk of fracture especially hip fracture. The mean of FRAX score increased in both major & hip osteoporotic fracture risk after adding BMD. More than half of the patients above fifty five years or more had high risk of fracture. So, BMD should be done in patients aged more than fifty five.

Clinical Presentations of Acquired Hypothyroidism in Children: Experience in a Tertiary Care Hospital in Bangladesh

A cross sectional study was conducted in Paediatric Endocrine Outpatient Department of BIRDEM General Hospital, a tertiary care centre in Dhaka, Bangladesh among patients diagnosed with acquired hypothyroidism during the period of January 2012 to December 2016. The study was done to find out the clinical presentations and associated disorders of all patients diagnosed with acquired hypothyroidism during the study period. Data were obtained by reviewing the medical records of the patients. Total 277 children were diagnosed of having thyroid disorders. Among them 145(52.3%) had acquired hypothyroidism. The commonest clinical presentations of children with acquired hypothyroidism were short stature (35.0%), excessive weight gain (31.5%), goiter (23.1%) and poor school performance (14.0%). Autoimmune hypothyroidism was found in 34.4% of children, sub-clinical hypothyroidism in 27.5% children and positive family history was found in 15.2% children with acquired hypothyroidism. The common associated diseases were diabetes and impaired glucose tolerance (4.9%), Down syndrome (3.5%), congenital heart disease (2.1%) and primary adrenal insufficiency (1.4%).

Estimation of Serum Lipid Profile among Patients Admitted with Myocardial Infarction in a Tertiary Level Hospital of Bangladesh

Different studies worldwide showed that dyslipidaemia is involved in the pathogenesis of ischemic heart diseases (IHD). This cross sectional descriptive type of observational study was carried out at Mymensingh Medical College Hospital during the period of six months from January 2021 to September 2021 to estimate the lipid profile among patients admitted in the coronary care unit (CCU) with myocardial infarction (MI). Data were collected from purposively selected 343 patients with MI by face to face interview and laboratory investigations using a case record form. Informed written consent of participants was taken prior to interview. Data were analyzed by using SPSS version 21.0. The study results revealed that mean age of the patients with myocardial infarction was 53.16 years with a standard deviation of 11.68 years. Majority of them (284, 82.8%) were male and the remaining (59, 17.2%) were female. Proportion of risk factors for ischaemic heart disease (IHD) were estimated and found that 244(71.1%) patients were smoker; 150(43.7%) had hypertension and 110(32.2%) had family history of IHD. Ninety nine (28.9%) patents were obese with BMI ≥25kg/m². Eighty three (24.2%) patients had diabetes mellitus; 66(19.2%) lead sedentary life and 61(17.8%) patients with myocardial infarction had dyslipidaemia. Mean LDL of patients with myocardial infarction was 103.65±39.73mg/dl; mean total cholesterol (TC) was 189.44±45.41mg/dl; mean TG was 243.11±205.19mg/dl and mean HDL was 39.29±8.98mg/dl. LDL was increased in 10(2.9%) patients; total cholesterol was raised in 121 (35.3%) patients and TG was raised in 195(56.9%) patients. HDL was raised in 26(7.6%) patients and it was lowered in 57(16.6%) patients. Mean LDL, TC, TG and HDL of younger (≤45 years) and older (>45 years) patients were compared and t-test showed no significant difference (p>0.05). Similarly mean LDL, TC, TG and HDL of male and female were compared and again t-test showed no significant difference (p>0.05). Though the pattern of lipid profile was found similar in younger and older patients and in males and females, a significant number of patients (61, 17.8%) with MI had dyslipidaemia which should be address by dietary and lifestyle modification.

Clinical Presentation of Congenital Adrenal Hyperplasia in Children: Experience in a Tertiary Care Hospital of Bangladesh

This cross sectional study was conducted in Paediatric Endocrine Outpatient Department of BIRDEM General Hospital, a tertiary care centre in Dhaka, Bangladesh among patients diagnosed with congenital adrenal hyperplasia (CAH) from January 2005 to December 2018. The study was aimed to find out the clinical and laboratory profile of all patients at presentation diagnosed with CAH during the study period. Data were obtained by reviewing the medical records of the patients. Total 102 children with CAH were diagnosed during the study period. Among them 68 were female and 34 were male (female to male ratio of 2:1). Median age was 3.5 month (range 0.2-158 month) and 5.5 month (range 1-108 month) in female and male respectively (p=0.42). Family history was available in 93 patients. Consanguinity was present in 16(17.2%), history of sib death in 12(12.9%), other family members were affected in 8(8.6%). Sixty patient (58.8%) had salt-wasting (SW), 39(38.2%) had simple virilizing (SV) and 3(2.9%) had non- classic form of CAH. Median age of presentation was 2 month (range 0.2-70 month) and 42 month (range 0.8-158 month) in SW and SV group respectively (p=0.001) and 119 month (range 108-152 month) in non- classic group. Common presentations were: genital ambiguity (64.7%), vomiting (46.5%), failure to thrive (41.6%), features of early puberty (precocious pseudopuberty) (24.5%), diarrhea (12.0%). Hyperpigmentation was noted in 49.0% of patients. Among the salt-wasting type in male failure to thrive (FTT) was the most common presentation (83.3%), followed by vomiting (75.0%). In female genital ambiguity was the commonest presentation (97.2%), followed by vomiting (77.1%). Among the simple virilizing type in male early puberty was the commonest presentation (100%) and genital ambiguity was the presenting feature in all the female (100.0%).

Corona Virus Disease 2019 (COVID-19) Diagnostic Tests: A Glimpse

Mass testing for COVID-19 infection is one of the core measures in tackling the global spread of the disease. Testing is vital to diagnose and estimate cases, attack rates and case fatality rates- critical data for policy-making. As COVID-19 continues to spread globally, the demand for more extensive laboratory testing and innovative technology increases. However, countries around the world have been struggling to keep up pace with the worldwide demand to expand testing strategy. The pandemic evolves, so does our knowledge and understanding of diagnostic tests of COVID-19. Here we aim to review major challenges related to COVID-19 diagnostic tests and future development. So, the ongoing urgency and demand for tests would certainly steer the rapid uptake of novel techniques, which in turn would boost our understanding of diagnostic tests for COVID-19.

AB0546 DETERMINANTS OF VASCULITIS IN SYSTEMIC LUPUS ERYTHEMATOSUS PATIENTS

Background

Among the manifestations of SLE, vasculitic presentation is common. This study was aimed to identify the predictors of vasculitis in SLE patients.

Objectives

To identify the determinants of vasculitis in SLE patients.

Methods

The study was conducted in the Department of Rheumatology, BSMMU, Dhaka from December 2019 to January 2021. A total 168 consecutive confirmed cases of SLE patients were enrolled. The patients were evaluated for the features of vasculitic rashes, digital gangrene, mesenteric vasculitis, mononeuritis multiplex. The cutaneous vasculitis was confirmed by a dermatologist. Study subjects were grouped into vasculitic and no vasculitic groups. The disease activity and damage were assessed using SLEDAI and SLICC/ACR DI. The rate of vasculitis was expressed in percentage. The multivariate logistic regression analysis was done to determine the independent predictors of vasculitis in SLE. P value <0.05 was considered significant.

Results

Rate of lupus vasculitis was 14.3%. The features shown significant difference between vasculitic and no vasculitic groups were: ACLE (79.2% vs. 18.8%, p<0.001), oral ulcer (70.8% vs. 13.2%, p<0.001), alopecia (83.3% vs. 27.1%, p<0.001), Raynaud’s phenomenon (20.8% vs. 5.6%, p=0.011), fever (54.2% vs. 25.0%, p=0.002), arthritis (70.8% vs. 29.9%, p<0.001), pregnancy loss (68.8% vs. 32.7%, p=0.003), lupus nephritis (25.0% vs. 45.1%, p=0.032), seizure (8.3% vs. 0.7%, p=0.027), pleurisy (8.3% vs. 0.7%, p=0.027), leucopenia (8.3% vs. 1.4%, p=0.049), anti ds-DNA positivity (87.5% vs. 62.5%, p=0.008), hypocomplementemia (87.5% vs. 59%, p=0.003), higher mean SLEDAI (p<0.001) and SLICC/ACR damage index score (p<0.001). Though not significant the rate of antiphospholipid antibody positivity was high (69.2% vs. 42.9%, p=0.052) in vasculitis group. In multivariate logistic regression analysis, higher SLEDAI score (OR = 1.296, 95% CI =1.114-1.508) was positively and lupus nephritis (OR= 0.055, 95% CI =0.007-0.413) was negatively associated with lupus vasculitis.

Conclusion

In SLE, vasculitic presentation is common. Higher the SLEDAI score greater the chance of lupus vasculitis.

References

[1]Aringer, M., Costenbader, K., Daikh, D., Brinks, R., Mosca, M., Ramsey-Goldman, R., et al., (2019). 2019 European League Against Rheumatism/American College of Rheumatology Classification Criteria for Systemic Lupus Erythematosus. Arthritis & Rheumatology, 71(9), pp.1400-1412.

[2]Drenkard, C., Villa, A., Reyes, E., Abello, M. and Alarcón-Segovia, D. (1997). Vasculitis in systemic lupus erythematosus. Lupus, 6(3), pp.235-242.

[3]Ramos-Casals, M., Nardi, N., Lagrutta, M., Brito-Zerón, P., Bové, A., Delgado, et al., (2006). Vasculitis in Systemic Lupus Erythematosus. Medicine, 85(2), pp.95-104.

Table 1.

Comparison of clinical features of Lupus vasculitis and without vasculitis (n=168)

Clinical featuresLupus vasculitis (n=24) n (%)Without vasculitis (n=144) n (%)p-valueFever13 (54.2)36 (25.0)0.002γSLE specific skin lesionsACLE19 (79.2)27(18.8)<0.001γSCLE1 (4.2)6(4.2)0.500*SLE non-specific skin lesionsOral ulcer17 (70.8)19 (13.2)<0.001γAlopecia20 (83.3)39 (27.1)<0.001γ   Raynaud’s5 (20.8)8 (5.6)0.011*Arthritis17 (70.8)43 29.9)<0.001γLupus nephritisa6 (25.0)65 (45.1)0.032γNeuro psychiatricSeizure2 (8.3)1 (0.7)0.027*Psychosis1 (4.2)2 (1.4)0.186*SerositisPleurisyPericarditis2 (8.3)1 (4.2)1 (0.7)3 (2.1)0.027*0.231*Pregnancy loss11/16 (68.8)32/98 (32.7)0.003γDVT1 (4.2)6 (4.2)0.500*APS3 (12.5)11 (7.6)0.213*AVN1 (4.2)2 (1.4)0.186*Pulmonary HTN2 (8.3)3 (2.1)0.074*

* Fisherʼs eхact test; γ chi-Square test, p < 0.05 is considered statistically significant, n: Number, %: Percent.

ACLE: Acute Cutaneous Lupus Erythematosus, SCLE: Sub-acute Cutaneous Lupus Erythematosus, DVT: Deep Vein Thrombosis, APS: Anti Phospholipid Antibody Syndrome, AVN: Avascular necrosis, HTN: Hypertension,

a: all diagnosed cases of lupus nephritis, presented with or without flare

Acknowledgements

We acknowledge all of our patients for their kind participation in this study. We also acknowledge Prof. Syed Atiqul Haq, Prof. Minhaj Rahim Choudhury, Prof. Abu Shahin, Dr. Md. Masudul Hasaan, Dr. Shamim Ahmed, Dr. Abul Kalam Azad, Department of rheumatology, BSMMU for their support and kind help during the work. At the end we acknowledge BSMMU authority for their support in conducting the study.

Disclosure of Interests

None declared

Utility of tru-cut biopsy in diagnosis of palpable pediatric soft tissue neoplasms

CONTEXT

Soft tissue neoplasms are infrequent in children with sarcomas accounting for approximately 7% of all pediatric malignancies. Morphologic diagnosis is challenging due to overlapping features. Subtyping and categorization of these lesions are difficult on fine-needle aspiration cytology (FNAC) alone owing to tumor heterogeneity and limited material in some cases. Tru-cut biopsies obtain adequate tumor tissue for ancillary studies besides conventional histology.

AIM

The study aims to explore the role of tru-cut biopsy to arrive at a definitive diagnosis. The study also highlights the correlation between FNAC and histopathology on tru-cut biopsy besides explaining the significance of a panel of immunohistochemistry (IHC) markers for histological categorization and subtyping.

MATERIALS AND METHODS

A total of 61 children from infancy to 18 years were included in the study. Closed biopsy procedures like FNAC and tru-cut biopsy were performed, and the tru-cut biopsy specimen was subjected to a panel of immunohistochemical markers.

RESULTS

Fisher's exact test for sensitivity and specificity towards detection of malignancy was 83% and 86%, respectively for FNAC. For tru-cut biopsy, sensitivity was 94% and specificity was 91%. The two-sided P value (<0.0001) was extremely significant. Cohen's Kappa coefficient value for tru-cut biopsy was 0.772 suggesting a substantial strength of agreement. Tru-cut with IHC had a Kappa value of 0.866 suggesting greater agreement with histopathology.

CONCLUSION

Tru-cut biopsy is a simple, safe, and reliable adjunct to the FNAC. Instead, immunohistochemistry enhances the diagnostic accuracy.

TB prevalence among patients with diabetes in Bangladesh

OBJECTIVE: 1) To assess the prevalence of TB among patients with diabetes mellitus (DM) attending diabetic care centres in Bangladesh, and 2) to compare TB- and DM-related sociodemographic and other factors in diabetic patients who had TB and those who did not.METHODS: This cross-sectional study was conducted from 1 June 2019 to 31 March 2020 in 108 centres of the Diabetic Association of Bangladesh (BADAS), with a sample size of 3,649 patients with DM. Data were collected by face-to-face interview using semi-structured questionnaire from each patient/guardian. Other ethical issues were also maintained.RESULTS: Out of 3,649 patients with DM, 676 presumptive TB cases were identified and tested; from them, 85 patients were detected as TB cases. Another 39 patients were already diagnosed and on anti-TB medication. Prevalence of TB among patients with DM attending diabetic care centres was 3.4%. Prevalence was higher in female than male (4.0% vs 2.6%). Underweight (9.0%) patients and patients having diabetes for more than 10 years (7.1%) had a higher prevalence of TB.CONCLUSION: TB prevalence was over 3% among study population with DM. Periodic screening and active case finding among DM patients should be strengthened to reduce the risk of TB infection among DM patients.

Change of Hemoglobin Level among Exclusively Breastfed Term and Preterm Babies up to Six Months of Age

There is progressive increase of Hb levels is observed during course of intrauterine development of fetus but high concentrations found at birth. In preterm neonate normal Hb is characteristically deviated from term neonate. Breast milk is the only natural ideal food for both term and preterm babies from birth up to 6 months. Preterm milk was found to contain significantly higher concentrations nutrients particularly iron than term milk. Preterm human milk is more suitable for the premature infant than term human milk. As Hb concentration varies in term and preterm babies in different counties in different feeding practices. The purpose of this longitudinal descriptive study is to find out the pattern of changes in the Hb level among exclusively breastfed preterm and term infants during the first six months of life. This study was carried in the Neonatal Intensive Care Unit (NICU), Mymensingh Medical College Hospital (MMCH), Mymensingh from September 2016 to February 2018. One hundred fifty (150) neonates both term and preterm were included in this study and followed up to 6 months of age. After admission informed written consent was taken from parents, thorough history taking and clinical examination were done. Data were collected in a pre-designed case record form. All the babies of Group A provided 2mg/kg iron supplementation from 6 weeks for 2 months for universal recommendation. Hb level was measured of all exclusively breast feed babies at admission after birth then next follow-up at 6 weeks, 3 months and 6 months. All information regarding history, anthropometrics measurement, Hb level was recorded in structural questionnaire. Data analysis was done by SPSS version 20.0. Male were predominant in both groups. Most of the preterm (72.0%) and term babies (65.3%) were delivered by vaginal route. Mean Hb level was found significantly higher among preterm babies than term babies after birth were 16.55g/dl and 15.98g/dl respectively. Sharp fall of Hb concentration was observed after birth up to 6 weeks in both preterm and term babies but Hb level was found significantly lower in preterm in comparison to term babies (9.27gm/dl vs. 9.58gm/dl). In term babies, even after 6 weeks fall of Hb level continued to 3 months of age followed by gradual increase up to 6 months without iron supplementation. Hb level of in preterm babies gradually increased from 6 weeks up to 6 months with universal iron supplementation. Hb level fall sharply up to 6 weeks in both exclusively breastfed term and preterm babies but even after 6 weeks term babies experienced gradual fall of Hb levels up to 3 months. Hb level increases in exclusively breast-fed term babies without iron supplementation from 3 months of age. Hb level in exclusively breastfed preterm babies increase from 6 weeks onward might be effect of universal iron supplementation.

Overweight and Obesity among Children of Primary Schools of Mymensingh Municipal Area

Obesity is now recognized as a major cause of morbidity and mortality throughout the world. The relative percentage of change is higher in developing countries. Childhood obesity has become a serious public health emerging problem because of its strong association with adulthood obesity and related adverse health consequences. The main objective of the study was to find out the status of overweight and obesity among primary school children of Mymensingh municipal area. This cross sectional descriptive study was carried out among primary school children of Mymensingh municipal area from September 2016 to February 2018. Total 1450 students were enrolled from 6 schools. Schools were selected by random lottery method. Data was collected in predesigned case record forms by investigator with the help of students, teachers and parents. Anthropometry was measured by principal investigator. Body mass index (BMI) was calculated and plotted by using Center for disease control (CDC) BMI growth charts for age and sex. Children were categorized as obese, overweight, normal and underweight. Data analysis was done by computer software SPSS version 20.0. Mean age of children was 9.0±1.124 years. There was 47.4% male and 52.6% female. Among the 1450 children 18.6% obese, 17.5% overweight, 53.5% normal and 10.4% underweight. So, total 36.1% children had BMI above normal limit. Obesity was found more common among male children (p<0.001). Obesity and overweight was significantly associated with fast food consumption (p<0.001), playing computer and mobile games (p<0.001), watching TV (p<0.001), higher parent's education (p<0.001), higher parent's income (p<0.001), service holder father (p<0.001), family history of overweight or obesity (p<0.001), single child in family (p<0.001) and increased birth weight (p<0.001). A large number of primary school children in Mymensingh municipal area were overweight and obese. Childhood obesity and overweight varies from school to school. Childhood obesity and overweight is an emerging and growing health issue in municipal area.

Association of working shifts, inside and outside of healthcare, with severe COVID-19: an observational study

BACKGROUND

Health and key workers have elevated odds of developing severe COVID-19; it is not known, however, if this is exacerbated in those with irregular work patterns. We aimed to investigate the odds of developing severe COVID-19 in health and shift workers.

METHODS

We included UK Biobank participants in employment or self-employed at baseline (2006-2010) and with linked COVID-19 data to 31st August 2020. Participants were grouped as neither a health worker nor shift worker (reference category) at baseline, health worker only, shift worker only, or both, and associations with severe COVID-19 investigated in logistic regressions.

RESULTS

Of 235,685 participants (81·5% neither health nor shift worker, 1·4% health worker only, 16·9% shift worker only, and 0·3% both), there were 580 (0·25%) cases of severe COVID-19. The odds of severe COVID-19 was higher in health workers (adjusted odds ratio: 2·32 [95% CI: 1·33, 4·05]; shift workers (2·06 [1·72, 2·47]); and in health workers who worked shifts (7·56 [3·86, 14·79]). Being both a health worker and a shift worker had a possible greater impact on the odds of severe COVID-19 in South Asian and Black and African Caribbean ethnicities compared to White individuals.

CONCLUSIONS

Both health and shift work (measured at baseline, 2006-2010) were independently associated with over twice the odds of severe COVID-19 in 2020; the odds were over seven times higher in health workers who work shifts. Vaccinations, therapeutic and preventative options should take into consideration not only health and key worker status but also shift worker status.

Serum Iron Profile and Red Cell Indices in Children with Severe Acute Malnutrition in A Tertiary Level Hospital

This cross-sectional analytical study was conducted in the department of Paediatrics, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh from March 2017 to August 2018 to assess the pattern of serum iron profile and red cell indices in children with severe acute malnutrition. Seventy children having severe acute malnutrition were compared with 70 age matched children those had normal growth. Age range of the studied children was 6 months to 59 completed months. Male was found predominant (54.3%) in both study group and comparison group. Mean serum iron, serum ferritin, serum total iron binding capacity and transferrin saturation in severely malnourished children were 45.3±19.3μg/dl, 26.5±20.0ng/ml, 246.3±47.5μg/dl and 16.4±2.0% respectively which were significantly lower than that of healthy children (p<0.05). Mean Hb level in children with severe acute malnutrition was found 8.3±1.6gm/dl which was also found significantly lower than that of normal children (p<0.05). Anaemia was found in all (100%) severely malnourished children compared to 25.7% of children in comparison group. Mean MCV, MCH and MCHC in children with severe acute malnutrition was found 71.7±13.5fl, 24.0±5.8pg and 31.4±4.0gm/dl respectively which were significantly lower than that of comparison group (p<0.05). Serum iron profile and red cell indices should be routinely done in severely malnourished children for early intervention and management of iron deficiency anaemia.

Pandemic Now and Then: A Historical Perspective of Non-Pharmaceutical Interventions Adopted In Covid-19

The coronavirus disease 2019 (COVID-19), first reported in Wuhan, China is now a major global health threat - a pandemic. Public health control measures are the cornerstones in the fight against COVID-19 in the absence of an effective vaccine or proven treatment. The aim of this review was to explore the historical use case of various public health measures adopted today to tackle COVID-19 spread. Although our knowledge about this novel coronavirus transmission is evolving over time, the fundamental non-pharmaceutical interventions e.g., handwashing, wearing a mask, physical distancing, isolation, quarantine and border control which are adopted globally at present are not new. This review highlighted that historically and religiously similar approaches were practised in the medieval past for controlling disease outbreaks. The successful implementation of the public health control measures largely depends on health systems resilience, community engagement and changes in population behaviour. Combined global efforts are essential to strengthen health systems, improve the capability of research and transparent information sharing with both public and international bodies to combat the pandemic.

Prophylactic antibiotics for preventing genital tract infection in women undergoing surgical procedures for incomplete abortion: a systematic review and meta-analysis of randomised controlled trials

BACKGROUND

Findings about the effect of prophylactic antibiotics in preventing genital tract infection (GTI) associated with surgical procedures used for incomplete abortions are conflicting. Some reported a decrease in infection associated with the use of antibiotic prophylaxis, whereas others found no significant reduction in GTI.

OBJECTIVE

To synthesise systematically the evidence on the effect of prophylactic antibiotics compared with placebo in women undergoing surgical procedures for incomplete abortion.

SEARCH STRATEGY

In February 2020, PubMed, Embase and Cochrane Central for Register of Controlled Trials were searched for relevant published randomised controlled trials.

SELECTION CRITERIA

Randomised controlled trials reporting GTI following surgical procedures for incomplete abortion and comparing antibiotic prophylaxis with placebo.

DATA COLLECTION AND ANALYSIS

Meta-analysis using inverse variance heterogeneity model included subgroup and sensitivity analyses determined a priori were conducted. The quality of evidence was assessed using Grading of Recommendations Assessment, Development and Evaluation (GRADE).

MAIN RESULTS

A total of 16 178 women who participated in 24 eligible randomised controlled trials published between 1975 and 2019 were included. Pooled estimates showed the risk of GTI following surgical procedures after incomplete abortion was significantly lower among those who had prophylactic antibiotics (relative risk [RR] = 0.72; 95% CI 0.58-0.90; I²  = 49%). There was no significant effect of antibiotics in women in low- and middle-income countries (three studies, 3579 participants, RR = 0.90; 95% CI 0.50-1.62; I²  = 63%), but it was clinically and statistically significant among women high-income countries (21 studies, 12 599 participants, RR = 0.67; 95% CI 0.53-0.84; I²  = 44%), with a strong level of evidence as assessed by GRADE.

CONCLUSION

This study provides evidence that antibiotic prophylaxis is beneficial in reducing post-abortion GTI among women undergoing surgical procedures for incomplete abortion. More studies are needed from low- and middle-income countries.

TWEETABLE ABSTRACT

Prophylactic antibiotics after incomplete abortion are effective in reducing GTI. More studies are needed from low- and middle-income countries.

The effect of oestrogen withdrawal on cardiac Ca2+ regulation and the influence of GPER1

Background

Post-menopausal women have an enhanced risk of developing heart failure, attributed to declining oestrogen levels during menopause. However, the signalling mechanisms remain undetermined.

Purpose

We aim to determine the role of G-protein coupled oestrogenic receptor 1 (GPER1) in intracellular Ca2+ regulation and the consequences of hormonal changes that may exacerbate the pathophysiology of heart failure.

Methods

Ovariectomy (OVx) (mimics menopausal hormone changes) or sham surgeries were conducted on female guinea pigs. Left ventricular cardiomyocytes were isolated 150-days post-operatively for experimental use. Cellular t-tubule network and structural integrity was measured using fluorescent di-8-ANEPPs staining and scanning ion conductance microscopy. GPER1 expression and localisation was measured by Western blot and immunostaining. The role of GPER1 activation was measured using selective agonist G-1 in electrophysiological and Ca2+-sensitive dye fluorescence experiments.

Results

Following oestrogen withdrawal, the t-tubule network density decreased by 13% and z-groove index reduced by 15%. GPER1 predominantly localised to the peri-nuclear endoplasmic reticulum and its expression increased by 32% in OVx. Action potential duration (APD) prolonged in OVx and following GPER1 activation, APD90 shortened by 11% and 25% in sham and OVx respectively. OVx cells had larger peak inward Ca2+ current (ICaL) (by 22%) and sarcoplasmic reticulum (SR) Ca2+ content (by 13%), compared with sham. While GPER1 activation had little effect on peak ICaL or SR content, it reduced Ca2+ transient amplitude (by 20%), SR fractional release (by 11%) in OVx cells. The frequency of occurrence of spontaneous Ca2+ waves evoked by periods of rapid stimulation reduced by 40% and wave-free survival time prolonged in OVx cells following GPER1 activation.

Conclusions

In the hearts of an animal species whose electrophysiology and intracellular Ca2+ regulation is akin to humans, we show that following oestrogen deficiency, the t-tubule network is down-regulated and becomes disorganised, GPER1 expression is increased and its activation induces negative inotropic responses in cardiomyocytes. This may limit the adverse changes to Ca2+ signalling reported in OVx that could be pro-arrhythmic and exacerbate the progression to heart failure.

Funding Acknowledgement

Type of funding source: Foundation. Main funding source(s): British Heart Foundation

Antimicrobial Sensitivity Pattern in Neonatal Sepsis in Neonatal Intensive Care Unit of Mymensingh Medical College Hospital

This cross-sectional descriptive study was conducted at the neonatal intensive care unit (NICU) in the department of Neonatology, Mymensingh Medical College Hospital (MMCH), Mymensingh, Bangladesh from July 2017 to December 2017 to determine antimicrobial sensitivity pattern in neonatal sepsis. Ninety four neonates (0-28 days) who were admitted in NICU with suspected sepsis were included in this study by purposive sampling technique. After admission written informed consent from parents or guardians obtained and then septic screening along with blood culture and antimicrobial sensitivity was done. All data were compiled, tabulated and then analyzed by SPSS version 21.0. Among 94 cases, 68(72.3%) were preterm and 26(23.4%) were term. There was male predominance and male female ratio was 1.9:1. Most of the patient admitted within 72 hours of birth. Most (84%) had low birth weight (<2500gm). Pre-mature onset of labour, pre-mature rupture of membrane >18 hours, vaginal route of delivery, instrumental resuscitation, pre-lacteal feeding, bottle feeding were the major perinatal risk factors in this study. Early onset sepsis (76.6%) was most prevalent in this study. Blood culture yielded positive growth in 20(21.3%) cases. Among them, Klebsiella was found in 7(35%). E. coli in 6(30%), Acinetobacter was in 3(15%), Staphylococcus aureus in 2(10%) cases. Pseudomonas and Enterobacter were found in rest 2(10%) of the cases. Gram negative bacteria were found in 18(90%) cases. Klebsiella was sensitive to Imipenem (85.7%), Colistin (85.7%) and Ciprofloxacin (77.5%). Sensitivity of E. coli was Imipenem (100%), Colistin (100%), Amikacin (66.7%), Ciprofloxacin (66.7%), Netilmicin (66.7%) and Gentamicin (50%). Acinatobecter had sensitivity to Netilmicin, Colistin, Imipenem (100%). Staphylococcus was 100% sensitive to Imipenem, Netilmicin and Vancomycin. Pseudomonas was found sensitive to Imipenem (100%), Amikacin (100%), Netilmicin (100%) and Colistin (100%). Enterobacter was found highly sensitive to Ciprofloxacin, Colistin and Imipenem. Almost all organisms were resistant to Ampicillin, Gentamicin, Cefotaxime and Ceftazidime. Based on result it is concluded that Klebsiella pneumoniae and Escherichia coli are the leading cause of neonatal sepsis in this study and most of them resistant to multiple antibiotics. Organisms found more sensitive to Imipenem, Colistin, Ciprofloxacin and Netilmicin.

Comparison of feeding behavior problems of hostel and non-hostel living children with ASD in Dhaka

Backgrounds

The purpose of this study was to determine the distribution and differences of nutritional status and feeding behavior problems between the school going children with autism spectrum disorder (ASD) who are living either at school hostel or at home with parents of the urban lower-middle-class population in Dhaka city, Bangladesh.

Methods

This is a cross-sectional study where the children with ASD were randomly selected from 4 schools for children with special needs in Dhaka, Bangladesh. Written consent was taken from the parents of the children. Anthropometric and other nutrition referral data were taken directly from the children during school time. Demographic, parity and behavioral pediatrics feeding assessment scale (BPFAS) module have been interviewed through structured questionnaires from the parents. The referral scores have been applied to measure and compare the mean BPFAS scores.

Results

93 children have participated in this study (mean age 10.21 years). It was observed that BPFAS scores for &gt;10 years of age are higher in overall both groups of children (p = &lt;0.05). Parents from joint or bigger families reported higher feeding problems of their child living at home (p = &lt;0.05). Significant difference found in BPFAS score according to the number of siblings in the homegroup (52.0 vs. 81.8; p = &lt;0.01). Mean BPFAS score was higher in the hostel group if the children's parents were highly educated (p = &lt;0.05). No association found in feeding assessment and socio-economic status as we found the SES were quite similar in both groups.

Conclusions

In this preliminary data, we found that feeding behavior problems reported by parents are less in the hostel living children and also lower in comparatively higher aged children. This study is important for researchers and policymakers as it opens windows to think and do more research about the importance and impact of hostel disciplines and in-home family bonding for the healthy growth of children with ASD.

Key messages

Higher aged children are have less feeding problem in general. Keeping children with ASD at home in touch of family members have positive impact on their feeding problems and overall nutrition.

Complete mitochondrial genome sequence of Catla catla (Hamilton, 1822) from the Halda river of Bangladesh

Catla (Catla catla) is one of the fastest-growing major carp found in South Asia as well as Bangladesh. Catla catla is the second most popular indigenous carp species in the freshwater aquaculture industry of Bangladesh due to its relatively good taste and high market price. In this study, we disclosed the complete mitochondrial genome sequence of Bangladeshi Catla fish from Halda river located in Chittagong. The circular mitogenome of Catla catla is 16,597 bp in length and nucleotide composition is AT-based (72%), contains 37 genes including 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes and a D-loop (control region).

An Overview of Unsafe Abortion: Patterns and Outcomes in a Tertiary Level Hospital

Unsafe abortion is one of the most critical global public health concerns and human rights challenges of the current time. The complications arising from unsafe abortion account for the death of almost 192 women each day; that is one woman every eight minutes and nearly all of them in developing countries. It is a descriptive type of observational study where all abortion related admissions from July 2017 to June 2018 in Obstetrics & Gynaecology department of Mymensingh Medical College Hospital were analyzed. Cases of unsafe abortion were identified as missed abortion, incomplete abortion and septic abortion. Total 2396 abortion related cases were admitted in one year. Among them 2173 cases were unsafe abortion (90.69%). The commonest mode of unsafe abortion was by taking improper regimen of different types of oral abortifacients either by self-administration or by improper prescriptions of local medical dispensers in 90% women. The commonest clinical presentation was per vaginal moderate to heavy bleeding in 88.5% women. After evaluation, the commonest diagnosis made was incomplete abortion in 92.87% women. The first line of intervention taken was recommended dose of medications like Misoprostol alone or Misoprostol followed by Mifepristone in 96.3% women to avoid unnecessary endometrial injury by surgical procedure. Further 44.2% women underwent Manual Vacuum Aspiration and thus reducing hospital stay to around 3.0±0.25 days. Almost all the patients (94%) were given post abortion contraceptives along with long acting family planning services to 20% patients. The miserable complication was septic abortion in 1.29% women and they were mainly done by insertion of foreign bodies which contribute to total 4.4% of maternal death. The impact of unsafe abortion on the woman and her family is intimidating. Timely and proper management of unsafe abortions and their complications with adequate provision for post abortion care may reduce the morbidity and mortality related to it. Moreover, use of long acting contraceptives to prevent unintended pregnancy and access to safe abortion may reduce the burden of unsafe abortions on public health system.

P943The effects of ovariectomy on guinea pig cardiomyocyte intracellular calcium regulation and phosphorylation

Background

Differences in cardiovascular disease risk between men and women have been partly attributed to the cardioprotective effects of oestrogen. Long-term oestrogen deficiency has been shown to alter cardiomyocyte intracellular calcium handling, but little is known about the mechanisms by which these changes occur. Oestrogen is thought to induce both genomic and non-genomic effects on cardiomyocytes, the latter including phosphorylation of calcium handling proteins.

Purpose

This study addresses the hypothesis that long-term oestrogen deficiency increases protein kinase A (PKA) and calcium/calmodulin-dependent kinase II (CaMKII) phosphorylation in cardiomyocytes, resulting in altered intracellular calcium regulation.

Methods

Female guinea pigs underwent sham (n = 7) or ovariectomy (OVx) (n = 8) operations and 150 days later, left ventricular myocytes were enzymatically isolated and loaded with fluo-4AM to monitor intracellular calcium. Calcium transients (CaT) were recorded using confocal microscopy. PKA and CaMKII phosphorylation were inhibited by superfusing cells with specific inhibitors, PKI and AIP, respectively. Experiments were carried out both in the presence and absence of β-agonist, isoprenaline (ISO), and relative changes to CaT parameters compared between OVx and sham cells.

Results

CaT amplitude was greater (p &lt; 0.05) in the OVx group (ΔF/Fo= 2.51 ± 0.57) compared with sham (ΔF/Fo = 2.16 ± 0.57). Inhibition of CaMKII phosphorylation increased CaT amplitude in the sham but not OVx group, both in the presence (by 22%, p &lt; 0.01) and absence of ISO (by 19%, p &lt; 0.01). Time to peak of the CaT increased to a greater extent following inhibition of PKA and CaMKII phosphorylation in the OVx group compared with sham, both in the presence (by 69%, p &lt; 0.0001) and absence (by 162%, p &lt; 0.0001) of ISO respectively. CaT decay time significantly increased (by 21%, p &lt; 0.01) in the sham group following inhibition of PKA and CaMKII together, whilst decay times in the OVx group remained unchanged in the presence and absence of ISO. At higher pacing rates, time to peak of the CaT decreased significantly (by 48%, p &lt; 0.01) in the OVx group but not sham with inhibition of phosphorylation.

Conclusion

Our findings suggest ovariectomy alters intracellular calcium regulation and some of these effects appear to be mediated by alterations in phosphorylation of calcium handling proteins and/or changes to sites of phosphorylation.

Diagnostic and prognostic utility of SF1, IGF2 and p57 immunoexpression in pediatric adrenal cortical tumors

BACKGROUND

Adrenocortical tumors (ACT) are uncommon in the pediatric age group. Using the standard Weiss criteria in pediatric tumors leads to overdiagnosis. This has led to the development of newer systems such as Weineke criteria. Ki67 labeling index aids in differentiating adenomas from carcinomas. We aim to evaluate the diagnostic and prognostic role of Ki67 labeling index, along with immunoexpression of steroidogenic factor-1, insulin like growth factor 2 and p57, in pediatric ACTs diagnosed using Weineke criteria.

METHODS

We have studied 25 cases of pediatric ACTs. Immunohistochemical staining for Ki67, SF-1, IGF2 and p57 was done in all cases and the result was correlated with the morphological diagnosis using the Weineke criteria.

RESULTS

Ki67 labeling index showed complete concordance with the morphological diagnosis. SF-1 and IGF2 showed similar correlation with the diagnosis, with IGF-2 proving to be a more specific marker. Increased Ki67, SF-1 and IGF2 immunostaining also correlated with worse survival. p57 was more specific in determining benign status of a tumor.

CONCLUSION

SF-1 and IGF2 are highly sensitive markers of malignancy in pediatric ACTs and can be used in combination with Ki67 expression for optimal diagnostic and prognostic assessment of pediatric ACTs.

TYPE OF STUDY

Prognosis study.

LEVEL OF EVIDENCE

Level II.

Focal nodular hyperplasia of the liver in children: A report of 2 cases

Focal nodular hyperplasia (FNH) is a benign non-neoplastic lesion of the liver usually found in adults. It is uncommon in children, comprising 2-10% of all pediatric liver tumours. In children, it can occur at all ages, with increased frequency between 6-10 years. We present two cases of FNH in childhood- the first being that of a 5-month-old infant, and the second in a 6-year-old boy. The possibility of congenital FNH had been excluded in the first case. The second case posed diagnostic difficulty initially and was wrongly treated for hepatoblastoma by neoadjuvant chemotherapy, but later correctly diagnosed to be FNH. Both the children are doing well on follow-up. Paediatric FNH though rare, should be kept in mind while dealing with a hepatic mass. Radiological features can be variable and needle sampling may not be sufficient to reach to a diagnosis. Histological examination with glutamine synthetase immunostaining should be performed in doubtful cases to differentiate FNH from other paediatric liver masses, as management differs.

Thoracopagus: Autoptic and radiologic study of 2 cases

Conjoined twins are a very rare complication of monozygotic twinning, most common being thoracopagus. Here we report about two cases of thoracopagus male twins illustrating the autopsy details of one case and the prenatal magnetic resonance imaging (MRI) details of another case. While the first case was misdiagnosed as separate twins on antenatal USG, only to be later confirmed as thoracopagus twins after birth, the antenatal MRI done in the second case helped in accurate detection of thoracopagus twins. Bilateral peripheral cortical cysts with dysplasia was noted in one of the twins of the first case, which has not been reported earlier in conjoint thoracopagii. Early prenatal diagnosis of conjoined twins is essential for better counselling of parents regarding post natal surgical management or termination of pregnancy. Importance of prenatal MRI for accurate detection of these cases is thereby highlighted.

Glomerulocystic disease, a rare cause of renal cysts in infants: A series of three cases

Glomerulocystic kidney disease (GCKD) is an uncommon type of cystic renal disease affecting children. It has both sporadic and familial occurrence and is characterized by cortical microcysts associated with dilatation of Bowman's spaces. In some instances, GCKD is an early manifestation of autosomal dominant polycystic kidney disease. Here, we present three cases of GCKD, two in infants and one in a perinatal postmortem. The first one is a case of GCKD with unilateral involvement, diagnosed on surgical biopsy. GCKD is a morphological expression of several hereditary and nonhereditary disorders that differ vastly in their management and long-term outcome. Hence, accurate morphological diagnosis of this entity is important for prognostication and genetic counseling.

Short Term Outcome of Cardiac Resynchronization Therapy on Functional Recovery of Patients with Congestive Heart Failure in Bangladeshi Population

Cardiac resynchronization therapy (CRT) reduces symptoms and improves left ventricular function in patients with heart failure due to left ventricular systolic dysfunction and cardiac dyssynchrony. We analyzed the clinical and echocardiographic outcome of CRT in heart failure patients. Thirty five (35) heart failure patients were included in this prospective observational study, conducted from February 2015 to February 2016 in the Department of cardiology, National Institute of Cardiology & Vascular Disease (NICVD) hospital, Dhaka, Bangladesh. Patients underwent CRT-P (BiV pacemaker) or CRT-D (defibrillator) implantation and were followed up. Clinical, electrocardiographic and echocardiographic study were performed before and 3 months after CRT implantation. After 3 months of BiV pacing, New York Heart Association functional class has improved from 3.3±0.44 to 1.7±0.60; (p<0.001). Left ventricular end diastolic diameter was reduced from 67.9±5.20 to 61.9±5.90mm; (p<0.001) and left ventricular end systolic diameter was reduced from 56.4±6.50 to 50.5±7.20mm; (p<0.001). Ejection fraction was significantly increased from 27.5±4.3% to 38.8±6.7%; (p<0.001). The average grade of mitral regurgitation was decreased from 1.49±0.65 to 0.43±0.61; (p<0.001). The number of hospitalization was also significantly reduced from 2.51±1.44 to 0.11±0.32; (p<0.001). Among the study patients, 71.4% patient was responders, 17.1% super responders and 11.4% non-responders. Although the study was performed on a small number of patients, it can be considered that CRT had favorable hemodynamic and clinical results and reduced the need for hospitalization in our heart failure patients.

Evaluation of Preoperative Ultrasonography in Gall Stone Disease to Predict Technical Difficulties during Laparoscopic Cholecystectomy

Laparoscopic cholecystectomy is the gold standard in the treatment of gallstones. This study was carried out to determine the technical difficulties that can be encountered during laparoscopic cholecystectomy and to evaluate the role of ultrasonography in identifying patients at risk of conversion returning to open surgery. The objective of this study was to evaluate the efficacy of preoperative ultrasonography in assessing technical difficulty faced during laparoscopic cholecystectomy in gallstone disease. This was an observational comparative study which was conducted in the Department of Surgery of Shaheed Suhrawardy Medical College & Hospital, Dhaka, Bangladesh from January 2016 to January 2017. A purposive sampling method was applied to select the study sample. A total of 160 patients were included this study. Data processing and analysis were done using SPSS (statistical package for social sciences), version 20. The summarized data were presented in the form of figures and tables with due statistical interpretation. In this study, there was a total of 160 cases, among which 90(56.25%) turned out to have undergone normal laparoscopic cholecystectomies. Seventy (43.75%) were difficult, among which 6(3.75%) were converted to open cholecystectomies. Among 160 patients, 120(75%) were female and 40(25%) were male. There is a total of 136/160 (85%) patients with gallbladder wall thickness <3mm and 24/160 (15%) patients >3mm. Among the 136 patients with gallbladder wall thickness <3mm, there was difficulty in holding the gallbladder in 28(25%) cases, 28(20.6%) had undergone gallbladder perforation, 32(23.5%) had undergone moderate bleeding and only 2(1.5%) had undergone severe bleeding. Among the 24 patients with gallbladder wall thickness >3mm, there was difficulty in holding the gallbladder in 22(91.7%) cases, 18(75%) had undergone gallbladder perforation, 18(75%) had undergone moderate bleeding and only 2(8.33%) had undergone severe bleeding. It shows a total of 124/160 (77.5%) patients with normal gall bladder, 26/160 (16.25%) patients with contracted gallbladder and 10/160 (6.25%) patients with distended gallbladder. Among the 124 patients with normal gallbladder, 16(12.9%) had undergone difficult Calot's dissection, 26(21%) had undergone difficult gallbladder bed dissection, 26(21%) had undergone moderate bleeding and none had undergone severe bleeding. Among 26 patients with contracted gallbladder, 20(76.9%) underwent difficult Calot's dissection, 24(92.3%) had undergone difficult gallbladder bed dissection, 18(69.2%) had undergone moderate bleeding and 4(15.4%) had undergone severe bleeding. Among 10 patients with distended gallbladder, 4(40%) underwent difficult Calot's dissection, 6(60%) underwent difficult gallbladder bed dissection, 6(60%) had undergone moderate bleeding and none had undergone severe bleeding. From this study, we conclude that preoperative ultrasonography is a good predictor of difficulty in laparoscopic cholecystectomy in the majority of cases and should be used as a screening procedure.

Pleuropulmonary Blastoma Developing in a Case of Misinterpreted Congenital Pulmonary Airway Malformation: a Case Report

BACKGROUND

Pleuropulmonary blastoma (PPB) is a childhood malignancy known to be associated with congenital pulmonary airway malformation (CPAM).

CASE REPORT

An 18 months boy presented with respiratory distress. Computed tomography (CT) scans revealed a large right-sided lung mass. Fine needle aspiration cytology (FNAC) showed sheets and clusters of small round to oval cells with scanty cytoplasm. The possibility of PPB was suggested. Trucut biopsy from the mass confirmed the diagnosis of PPB, of at least type II. The child had earlier been diagnosed as CPAM for which he had undergone lobectomy at six months, which on review was diagnosed as PPB I.

CONCLUSION

We describe the cytological and histological findings of a case of PPBII/III evolving from a PPB I originally thought to be a CPAM type IV. This supports the theory that PPB I may progress to a more aggressive type II with time, and highlights the importance of the adequately treating the PPB I to prevent this transformation.

Cytodiagnosis of inflammatory myofibroblastic tumor: A report of three cases in infants

Inflammatory myofibroblastic tumor is a tumor of intermediate grade with a low rate of metastasis. The tumor often mimics malignancy. There is sparse literature available describing the cytological findings of this rare condition. It often presents in infancy and childhood as an intra-abdominal mass. Here, we describe the cytological findings of three cases of inflammatory myofibroblastic tumor in infants aged 10 months, 4 months, and 15 months, respectively. While the first two cases are fine needle aspiration cytology (FNAC) smears, the third case is that of an intraoperative imprint cytology. All the three smears showed low cellularity with small clusters of bland spindle cells, along with sprinkling of inflammatory cells, suggestive of an inflammatory myofibroblastic tumor. The diagnosis was later confirmed on histopathology and positive immunostaining for ALK.

Skin Biopsy and Histopathological Diagnosis of Dermatological Diseases

Microscopic examination of skin and mucous membrane is an established investigation in diagnosis and follow up of many dermatological conditions frequently encountered during practice. Histopathological examination is performed with biopsied specimen from skin and or mucous membrane where required. However neither do all skin biopsies produce neither a conclusive diagnosis nor the dermatologists routinely perform this procedure to every patient they consult. This cross sectional descriptive study conducted by reviewing the records of all biopsied cases studied for histopathology in Mymensingh Medical College, Mymensingh and Shaheed Mansur Ali Medical College, Dhaka, Bangladesh from January 2012 to December 2016. The aim of this study was to investigate the favourable clinical diagnoses set by dermatologists when performing skin biopsy, the diagnoses reached by the dermatopathologists after microscopic examination, and the relationship between them and finally to comment on the instances that skin biopsy fails to fulfill the diagnostic task. Fourteen hundred and thirty six (1436) cases of skin biopsy were reviewed and descriptive statistics were performed. Maximum cases 39.1% (562) were in 2nd decade with almost equal sex distribution. The most frequently proposed clinical diagnoses included papulosquamous dermatoses 28.6% (410), whereas histological confirmation was in 13.1% (188). Histological diagnosis was more as nonspecific dermatitis 31.6% (454). After microscopic examination, a specific histological diagnosis was found in 83.5% (1199) of the cases and a consensus between clinical and histological diagnoses was observed in 69.2% (994). Neither histological diagnosis nor any feature consistent with clinical suspicion was observed in 10.1% (145) cases. Histopathological examination of skin biopsy is still a valuable diagnostic tool in many skin diseases and dermatoses with diagnostic dilemma. There are cases in which diagnostic inefficiency are being faced even after skin biopsy examination.

Embryo cell allocation patterns are not altered by biopsy but can be linked with further development

It has been suggested that first embryo cleavage can be related with the embryonic-abembryonic axis at blastocyst stage in mice. Thus, cells of the 2-cell embryo might be already biased to form the inner cell mass or trophectoderm. This study was conducted to observe the possible effects of embryo biopsy on cell allocation patterns during embryo preimplantation in two different mouse strains and the effects of these patterns on further development. First, one blastomere of the 2-cell embryo was injected with a lipophilic tracer and cell allocation patterns were observed at blastocyst stage. Blastocysts were classified into orthogonal, deviant or random pattern. For the first experiment, embryos were biopsied at 8-cell stage and total cell counts (TCC) were annotated. Furthermore, non-biopsied blastocysts were transferred into foster mothers. Then, pups and their organs were weighed two weeks after birth. Random pattern was significantly recurrent (≈60%), against orthogonal (<22%) and deviant (<22%) patterns among groups. These patterns were not affected by biopsy procedure. However, TCC on deviant embryos were reduced after biopsy. Moreover, no differences were found between patterns for implantation rates, litter size, live offspring and organ weights (lungs, liver, pancreas and spleen). However, deviant pups presented heavier hearts and orthogonal pups presented lighter kidneys among the group. In conclusion, these results suggest that single blastomere removal does not disturb cell allocation patterns during pre-implantation. Nonetheless, the results suggest that embryos following different cell allocation patterns present different coping mechanisms against in vitro manipulations and further development might be altered.

Shift in disparities in hepatitis C treatment from interferon to DAA era: A population-based cohort study

We evaluated the shift in the characteristics of people who received interferon-based hepatitis C virus (HCV) treatments and those who received recently introduced direct-acting antivirals (DAAs) in British Columbia (BC), Canada. The BC Hepatitis Testers Cohort includes 1.5 million individuals tested for HCV or HIV, or reported cases of hepatitis B and active tuberculosis in BC from 1990 to 2013 linked to medical visits, hospitalization, cancer, prescription drugs and mortality data. This analysis included all patients who filled at least one prescription for HCV treatment until 31 July 2015. HCV treatments were classified as older interferon-based treatments including pegylated interferon/ribavirin (PegIFN/RBV) with/without boceprevir or telaprevir, DAAs with RBV or PegIFN/RBV, and newer interferon-free DAAs. Of 11 886 people treated for HCV between 2000 and 2015, 1164 (9.8%) received interferon-free DAAs (ledipasvir/sofosbuvir: n=1075; 92.4%), while 452 (3.8%) received a combination of DAAs and RBV or PegIFN/RBV. Compared to those receiving interferon-based treatment, people with HIV co-infection (adjusted odds ratio [aOR]: 2.96, 95% CI: 2.31-3.81), cirrhosis (aOR: 1.77, 95% CI: 1.45-2.15), decompensated cirrhosis (aOR: 1.72, 95% CI: 1.31-2.28), diabetes (aOR: 1.30, 95% CI: 1.10-1.54), a history of injection drug use (aOR: 1.34, 95% CI: 1.09-1.65) and opioid substitution therapy (aOR: 1.30, 95% CI: 1.01-1.67) were more likely to receive interferon-free DAAs. Socio-economically marginalized individuals were significantly less likely (most deprived vs most privileged: aOR: 0.71, 95% CI: 0.58-0.87) to receive DAAs. In conclusion, there is a shift in prescription of new HCV treatments to previously excluded groups (eg HIV-co-infected), although gaps remain for the socio-economically marginalized populations.

Role of primary T-cell immunodeficiency and hepatitis B coinfection on spontaneous clearance of hepatitis C: The BC Hepatitis Testers Cohort

T-cell host immune response against hepatitis C virus (HCV) has been suggested to play an important role in determining HCV infection outcome. However, data from human studies are not available. This study examined the effect of primary T-cell deficiency along with other factors on the spontaneous clearance of HCV in a large population-based cohort in British Columbia, Canada. The BC Hepatitis Testers Cohort includes all individuals tested for HCV in BC in 1990-2013 linked with data on their medical visits, hospitalizations and prescription drugs. HCV-positive individuals with at least one valid HCV PCR test on/after HCV diagnosis (n=46 783) were included in this study. To examine factors associated with the spontaneous clearance of HCV, multivariable logistic regression was fitted on the full sample, and Cox proportional hazards model on the HCV seroconverters. Spontaneous clearance was observed in 25.1% (n=11 737) of those tested for HCV. After adjusting for potential confounders, the odds of spontaneous clearance of HCV was lower in people with primary T-cell immunodeficiency (adjusted odds ratio [aOR]: 0.55, 95% CI: 0.32-0.94), and higher in females (aOR: 1.61, 95% CI: 1.54-1.68) and in those coinfected with HBV (aOR: 2.31, 95% CI: 1.93-2.77). Similar results were observed in HCV seroconverters except HBV coinfection was not significant. In conclusion, primary T-cell immunodeficiency is associated with a lower spontaneous clearance of HCV while female sex and coinfection with HBV are associated with a higher spontaneous clearance.