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Hepatitis B and C Virus (HBV, HCV) infections are major contributors to the burden of chronic liver diseases globally. In 2004, the Nigerian Government introduced the HBV vaccine into the National Program on Immunization (NPI) to curb the HBV infection. This study aimed to determine the prevalence and associated factors of HBV and HCV infections among adolescents in secondary schools in Calabar, Cross River State, South-South Nigeria, in the pre- and post-vaccination era. This was a school-based, cross-sectional study. Six hundred and sixty secondary school adolescents aged 10-20 years were recruited using a multistage sampling technique. Hepatitis B Surface Antigen (HBsAg) and HCV antibody screening were done respectively on the study participants using the rapid chromatographic immunoassay method. The relationship between sociodemographic variables and Hepatitis B infection was described. A p-value of less than 0.05 was considered significant. The mean age of the participants was 14.85±2.11 years. Six participants were positive for HBsAg, giving an overall prevalence of 0.9%. The positive adolescents were from public schools, and the age group mostly positive was 16 years and above (2.1%). None of the screened adolescents was positive for HCV antibody. Though the prevalence of HBV infection was low, most of those who tested positive were delivered before the introduction of the HBV vaccine into the NPI schedule. Modalities to vaccinate young people delivered before the introduction of the Hepatitis B vaccine into the NPI schedule should be developed. [ABSTRACT FROM AUTHOR]

Introduction. While stillbirth rates have declined in many countries, these declines are less marked in the UK. Fetal growth restriction (FGR) affects about 3% to 7% of all pregnancies and is by far the single strongest risk factor for stillbirth. FGR implies a pathological restriction of the genetic growth potential and is not synonymous with small-for-gestational age (SGA). The Royal College of Obstetricians and Gynaecologists (RCOG) defines SGA as an estimated fetal weight (EFW) or abdominal circumference (AC) less than the 10th centile. The likelihood of FGR is higher in severe SGA defined as an EFW or AC less than the 3rd centile. The second version of Saving Babies' Lives Care Bundle (SBLCBv2) recommends the second trimester uterine artery Doppler (UtAD) pulsatility index (PI) screening for pregnancies at high risk of FGR. This study was aimed at determining the prevalence of FGR and assess pregnancy outcomes following the implementation of UtAD at the United Lincolnshire Hospitals NHS Trust (ULHT). Methods. One-year retrospective cohort study (1st September 2020-31st August 2021) was conducted across both ULHT hospitals in the UK (Lincoln County Hospital in Lincoln and Pilgrim Hospital in Boston). Results. During the study period, 5197 women were booked at ULHT. Of 5197, 349 were identified as high risk for FGR. When numbers were compared for the two hospitals, FGR rate was higher in Lincoln 8.10% vs. 4.51% in Boston. In addition, an increased proportion of abnormal UtAD scans was observed in Lincoln (35.7%) vs. in Boston (22%) (P = 0.014). Of the 349 UtAD scans, 237 were normal (67.9%), 41 showed unilateral notching (11.7%), 43 bilateral notching (12.3%), and 28 raised PI (8%). Babies in the bilateral notching group exhibited the lowest birth weight (P = 0.005), born at an earlier gestation (P = 0.029), and with low Apgar scores at 1 (P = 0.007) and 5 minutes (P < 0.001). Discussion. UtAD is a useful second trimester screening tool for women identified as high risk for FGR and helps stratify the intensity of surveillance. However, the findings call into question a focus solely on the UtAD PI for improving FGR detection without taking into account bilateral notching. [ABSTRACT FROM AUTHOR]

Aims: Pulsed field ablation (PFA) is a novel atrial fibrillation (AF) ablation modality that has demonstrated preferential tissue ablation, including no oesophageal damage, in first-in-human clinical trials. In the MANIFEST-PF survey, we investigated the 'real world' performance of the only approved PFA catheter, including acute effectiveness and safety-in particular, rare oesophageal effects and other unforeseen PFA-related complications.Methods and Results: This retrospective survey included all 24 clinical centres using the pentaspline PFA catheter after regulatory approval. Institution-level data were obtained on patient characteristics, procedure parameters, acute efficacy, and adverse events. With an average of 73 patients treated per centre (range 7-291), full cohort included 1758 patients: mean age 61.6 years (range 19-92), female 34%, first-time ablation 94%, paroxysmal/persistent AF 58/35%. Most procedures employed deep sedation without intubation (82.1%), and 15.1% were discharged same day. Pulmonary vein isolation (PVI) was successful in 99.9% (range 98.9-100%). Procedure time was 65 min (38-215). There were no oesophageal complications or phrenic nerve injuries persisting past hospital discharge. Major complications (1.6%) were pericardial tamponade (0.97%) and stroke (0.4%); one stroke resulted in death (0.06%). Minor complications (3.9%) were primarily vascular (3.3%), but also included transient phrenic nerve paresis (0.46%), and TIA (0.11%). Rare complications included coronary artery spasm, haemoptysis, and dry cough persistent for 6 weeks (0.06% each).Conclusion: In a large cohort of unselected patients, PFA was efficacious for PVI, and expressed a safety profile consistent with preferential tissue ablation. However, the frequency of 'generic' catheter complications (tamponade, stroke) underscores the need for improvement. [ABSTRACT FROM AUTHOR]

Introduction: Sickle cell anaemia (SCA) often presents in early childhood with repeated vaso-occlusive crisis that leads to ischaemia, infarction and fibrosis which may result in a reduction in expected testicular volume (TV) at puberty.Method: This was a cross-sectional study of 95 children with SCA aged 1-18 years compared with 95 age-matched controls. Participants responded to an interviewer-administered questionnaire, with their anthropometric measurements taken, pubertal maturity assessed by Tanner staging and testicular ultrasonography done. Changes in TV across the ages were compared graphically and regression analyses were used to determine the factors independently associated with TV. A p-value of <0.05 was considered statistically significant.Results: In the prepubertal period, the haemoglobin SS (HbSS) participants had larger median ultrasound TV (MUSTV) compared to the haemoglobin AA (HbAA) controls (p = 0.001). This trend reversed in the pubertal period. On regression analysis, the frequency of testicular pain (p = 0.04), weight (p = 0.02) and pubic hair rating (p = 0.03) of the HbSS participants were significant predictors of increased TVs in the HbSS participants, irrespective of pubertal status.Conclusion: The prepubertal MUSTV of the HbSS participants were higher than those of the HbAA controls, while the HbAA controls had higher MUSTV at puberty and beyond. The frequency of testicular pain episodes, pubic hair rating and weight were independent predictors of TV changes in the HbSS participants. Prevention of repeated vaso-occlusive crisis in the prepubertal period may help prevent the reduction in TV and possible hypogonadism. Lay summarySickle cell anaemia (SCA) causes repeated episodes of painful crisis and in boys, these may affect the way their testes grow. The study set out to document testicular sizes on a one-time basis in boys aged 1-18 years with SCA compared with controls of similar ages. The participants responded to structured questions assisted by the researchers and their body measurements were appropriately taken. Their level of sexual maturation was assessed according to the method by Tanner and the sizes of their testes were measured using an ultrasound machine. The research information was analysed and a statistical value less than 0.05 was taken to mean that there was a difference between the measured variables. The mid-testicular sizes of the SCA participants were noted to be higher than that of their controls during the prepubertal period while the non-SCA boys had higher sizes from puberty onwards. The frequency of testicular pain, weight and pubic hair stage of the SCA boys were important contributors to their increased testes sizes, irrespective of pubertal status. Efforts aimed at preventing painful crisis should start during early childhood to forestall future sexual challenges in adulthood. [ABSTRACT FROM AUTHOR]

Key content: Surgical site infection (SSI) is an important cause of postoperative morbidity and, in severe cases, mortality.The epidemiology of SSIs varies depending on the type of surgery and the country. It is influenced by patient‐related, preoperative, intraoperative and postoperative risk factors.Prevention strategies target these risk factors and include measures taken before, during and after surgery. Learning objectives: To understand how SSIs can be prevented, depending on the type of wound, especially perioperative measures including antibiotic prophylaxis, and when to institute repeat antibiotics or alter dosages.To understand the bases of and approaches to perioperative antibiotics in women with incidental infections (for example, lower genital and urinary tract) and in women with comorbidities, such as those who are immunosuppressed or with mechanical valvar heart diseases.To understand what specific measures to take to reduce the risk of SSIs in special cases in obstetrics and gynaecology, such as in morbidly obese women, those undergoing cancer surgery, or those with cardiac conditions or transplants. Ethical issues: Should perioperative antibiotics be given to every woman undergoing surgery?What is the risk of antibiotic resistance as a result of administration of perioperative antibiotics? [ABSTRACT FROM AUTHOR]

Ulipristal acetate (UPA) was introduced as a novel progesterone receptor modulator as effective therapy for symptomatic fibroids. Randomised clinical trials established its effectiveness in the management of heavy menstrual bleeding due to uterine leiomyomas. The trials did not find any significant evidence of clinical harm to the participants. Recently, however, there have been reports of liver injury necessitating liver transplant in women who have had UPA treatment. This has led to the suspension of UPA as one of the medical therapies in the treatment for uterine fibroids while the European Medicines Agency (EMA) conducts a review of liver injury risk with its use. The European Medicine Agency safety committee has advised that women should stop taking 5 mg UPA and that no new patients should commence treatment with the medicine until the ongoing review is completed. In this article, we review the rise of UPA as one of the emerging medical therapies for symptomatic uterine fibroids and the subsequent reports of adverse events leading to the suspension of its use. [ABSTRACT FROM AUTHOR]

Introduction: Neonatal morbidity and mortality are high in Nigeria. The establishment of more centers that could offer adequate management of high-risk pregnancies and neonates is essential. Objectives: This study seeks to describe sick newborn care at the cottage hospital level in Southern Nigeria with the aim of drawing lessons that may be useful to similar environments. Subjects and Methods: A description of facility upgrading and staff training in perinatal care at a public-private partnership cottage hospital with a robust community health insurance scheme in Nigeria is made. A retrospective descriptive study of the morbidity and outcomes of admitted neonates in the facility between March 2016 and February 2017 was made. Results: Out of 3630 babies born in the facility (302 per month), 189 were admitted, yielding an admission rate of 52.1/1000 live births. The main morbidities were neonatal hypoglycemia (32.4%), preterm low-birth weight (24.9%), neonatal sepsis (22.8%), and neonatal jaundice (12.7%). Sixteen of the 109 neonates died giving a mortality rate of 8.5%. The main causes of deaths were birth asphyxia (7 or 43.8%), meconium aspiration (6 or 37.5%), and congenital malformation (3 or 18.8%).Conclusion and Recommendations: The neonatal admission and mortality rates are quite low in this cottage hospital and similar to the situation even in developed environments. This salutary scenario is probably due to good antenatal and perinatal care, and a robust community health insurance scheme which enhances services uptake and public–private partnership which engenders infrastructure expansion and maintenance. This model is recommended for the hospitals in our region. [ABSTRACT FROM AUTHOR]

Objective To determine the association of feto-maternal outcomes of term pregnancies with fetal umbilical cord lengths and cord abnormalities in Calabar. Methods A cross-sectional study of 600 women with singleton pregnancies who delivered either virginally or caesarean section between 37 and 42 completed weeks. Examination of cord was done at delivery for loop round neck, cord length, knots and cord abnormalities. Outcomes recorded include fetal presentation, sex, birth weight, length of newborn and Apgar scores at 1st and 5th min. Also, mode of delivery, labor duration and maternal complications were noted. Cords with abnormalities were sent for histological examination. Data was analyzed using SPSS version 20. Level of significance was set at P-value <0.05. Results The mean cord length was 61.07 ± 14.931 cm, short cords were 23 (7.7%), long cords were 37 (12.3%) and 480 (80.0%) were normal length. Male fetuses had longer cords, mean cord length in the vertex presentations were significantly longer than in breech presentation and increased with increase in birth weight. Abruptio placentae was higher among fetuses with short umbilical cord (17.4% vs. 0.4%) (P-value = 0.000). There was positive correlation between fetal weight and umbilical cord length. Cord coiling index showed a negative correlation with cord length (r = -0.261; P-value = 0.000). Conclusion Abnormal umbilical cord lengths significantly predispose to obstetric complications but cord abnormalities are rare and does not affect pregnancy outcome. High index of suspicion and careful evaluation of cord may inform and reduce untoward feto-maternal outcome. [ABSTRACT FROM AUTHOR]

Background: The epilepsy problem in much of Africa is characterized by stigmatization and neglect. This article describes the efforts at a cottage hospital level to ameliorate the epilepsy problem in a resource-limited environment. Methods: A seizure clinic was started in a cottage hospital after targeted health talks. The International League against Epilepsy (ILEA)/World Health Organization (WHO)/International Bureau for Epilepsy (IBE) manual was adopted for the training of staff and to guide management. Patients were followed up in the clinic and with the use of simple information communication technology. Results: Forty-five patients with ages ranging from 3 months to 42 years (who had lived with epilepsy for periods ranging from 3 weeks to 32 years) were registered over 12 months period. The most common seizure type was generalized tonic clonic (21 or 46.67%) followed by generalized clonic (8 or 17.78%). Ten (22.22%) had comorbidities mainly cerebral palsy (4 or 8.89%) and attention-deficit hyperactivity disorder (3 or 6.67%). Most (98.15%) were placed on carbamazepine. Twenty-three (51.11%) had complete control of seizures, 21 (46.67%) had reduced frequencies of attacks, and all 8 children who had dropped out of school resumed schooling. Conclusion: The epilepsy challenge in the developing world can be demystified and effectively managed at the cottage hospital level. Targeted health education, affordable management regimes, and committed follow-up are keys. A training manual based on the ILEA/WHO/IBE document should be developed for Africa. [ABSTRACT FROM AUTHOR]

Background: Normal hematological indices has been determined in Nigerian newborns and found to be lower compared to their Caucasian counterparts. This was attributed to genetic factors. Malaria is endemic in Nigeria and is one of the major causes of ill health and death. Anemia is an important manifestation of malaria. Resistance by malaria parasites to antimalarial drug exacerbates the situation by continuous hemolysis. Aim: To determine the hematological indices in febrile newborn with malaria parasitemia. Materials and Methods: One-hundred fifty neonates (0-28 days) with fever admitted into the Newborn Unit of University of Calabar Teaching Hospital, over a 6 months period, were recruited consecutively. Blood film for malaria parasites and samples for full blood count were obtained and sent to the laboratory before commencement of the treatment. Data analysis was with SPSS version 14. Results: One-hundred fifty babies were recruited into the study. Most (85.3%) of the babies were aged ≤7 days. Six babies (4%) had malaria parasitemia. Plasmodium falciparum was the only species identified. All the babies that had parasitemia were anemic (mean hemoglobin [Hb] concentration of 12.6 g/dl) even when parasite count was low (average of 30.6/µl) though this could not be attributed solely to malaria. None of these neonates was transfused. All the other hematological indices were within the normal range of healthy newborn population irrespective of parasitization. Conclusion: Neonatal malaria does occur in our environment. While it does not affect the white blood indices, it lowers neonatal Hb. It is recommended that Hb concentration be estimated in newborns with malaria to reduce infant morbidity and mortality in our environment. [ABSTRACT FROM AUTHOR]

Eating behaviour disorder during early childhood is a common pediatric problem. Many terminologies have been used interchangeably to describe this condition, hindering implementation of therapy and confusing a common problem. The definition suggests an eating behaviour which has consequences for family harmony and growth. The recent Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition does not cover the entire spectrum seen by pediatricians. Publications are substantive but level of evidence is most of the time low. This purpose of this review is to clarify terminology of eating behaviour problems during early childhood; including benign picky eating, limited diets, sensory food aversion, selective eating, food avoidance emotional disorder, pervasive refusal syndrome, tactile defensiveness, functional dysphagia, neophobia and toddler anorexia. This tool is proposed only to ease the clinical management for child care providers. Diagnostic criteria are set and management tools are suggested. The role of dietary counselling and, where necessary, behavioural therapy is clarified. It is hoped that the condition will make its way into mainstream pediatrics to allow these children, and their families, to receive the help they deserve. [ABSTRACT FROM AUTHOR]

An essential step in the invasion of red blood cells (RBCs) by Plasmodium falciparum (Pf) merozoites is the binding of rhoptry neck protein 2 (RON2) to the hydrophobic groove of apical membrane antigen 1 (AMA1), triggering junction formation between the apical end of the merozoite and the RBC surface to initiate invasion. Vaccination with AMA1 provided protection against homologous parasites in one of two phase 2 clinical trials; however, despite its ability to induce high-titer invasion-blocking antibodies in a controlled human challenge trial, the vaccine conferred little protection even against the homologous parasite. Here we provide evidence that immunization with an AMA1-RON2 peptide complex, but not with AMA1 alone, provided complete protection against a lethal Plasmodium yoelii challenge in mice. Significantly, IgG from mice immunized with the complex transferred protection. Furthermore, IgG from PfAMA1-RON2-immunized animals showed enhanced invasion inhibition compared with IgG elicited by AMA1 alone. Interestingly, this qualitative increase in inhibitory activity appears to be related, at least in part, to a switch in the proportion of IgG specific for certain loop regions in AMA1 surrounding the binding site of RON2. Antibodies induced by the complex were not sufficient to block the FVO strain heterologous parasite, however, reinforcing the need to include multiallele AMA1 to cover polymorphisms. Our results suggest that AMA1 subunit vaccines may be highly effective when presented to the immune system as an invasion complex with RON2. [ABSTRACT FROM AUTHOR]

Although respiratory symptoms are the dominant features of COVID-19 infection, myocardial injury has been described in these patients. Reported cardiac manifestations of COVID-19 infection include myocarditis, arrhythmia and acute coronary syndrome including ST elevation myocardial infarction (STEMI). STEMI is a medical emergency and timely intervention is of utmost importance to prevent mortality and long-term morbidities. In this report, we present a wide spectrum of clinical presentations, management, and outcomes for five patients with COVID-19 infection and ST elevation on ECG. [ABSTRACT FROM AUTHOR]

Children in the warm rain forest are at risk of having their lung function compromised by a variety of factors, including smoke from wood fires. A total of 358 children from a fishing port and 400 children living in a farm settlement were tested to determine their peak expiratory flow rate (PEFR), forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), forced expiratory volume in 1 s per cent and forced expiratory flow between 25 and 75%. The values for the PEFR, FVC, FEV1, forced expiratory volume in 1 s per cent and forced expiratory flow between 25 and 75% of the subjects were significantly lower than those of the controls (P value for males = <0.001, 0.01, 0.002, 0.01 and <0.001, respectively, whereas for their female counterparts = <0.001, 0.003, 0.001, 0.04 and <0.001, respectively). These deficits were observed to be more with increasing duration of exposure to wood smoke for PEFR, FVC and FEV1.Chronic exposure to fish drying using firewood can impair lung function in children. There is a need for alternative methods of fish preservation for those engaged in fish drying. [ABSTRACT FROM PUBLISHER]

Sixty children aged 1-3 years with protein malnutrition were involved in the present study. Measurements were made of plasma transferrin receptor (TfR), haemoglobin (Hb), ferritin, transferrin and Fe in comparison with twenty apparently healthy age- and sex-matched reference children in Nigeria. Plasma TfR was measured by an immunofluorometric assay. The mean plasma concentrations of both albumin (37 g/l) and transferrin (1·88 g/l) were within reference ranges in the ‘healthy’ children. The malnourished children had severe protein deficiency as indicated by their significantly lower mean plasma albumin (24·4-28·2 g/l; P < 0·0001) and transferrin (1·24-1·53 g/l; P < 0·0001) concentrations in comparison with the reference children. In the reference children, the traditional indicators of Fe nutrition (plasma Fe, transferrin Fe saturation and Hb) were within the reference ranges, but ferritin values were raised, indicating acute or chronic infection and/or inflammation. The mean concentrations of plasma TW (4·2-5-2 mg/l) in the malnourished group were significantly lower than the mean (6·1 mgn) of the reference children (P=0·0009). In the children with severe malnutrition, none of the indicators of Fe status except Hb (81·5-86·7 g/l; P<0·0001) showed Fe deficiency, including the serum concentration of TfR and the TfR : ferritin ratio, although the Fe status was lower than in the reference children (for Fe P = 0·009; and ferritin P=0·0004). In the absence of haemodilution, the low Hb values are a clear indication that the malnourished children were Fe deficient; none of the other indices was indicative of Fe deficiency. This is the first report of TfR levels in malnourished and healthy African children. [ABSTRACT FROM PUBLISHER]