Outcomes of Surgical Management for Patent Ductus Arteriosus in Infants in Nigeria.

BACKGROUND: Patent ductus arteriosus is a common cardiac anomaly in infants that, if untreated, is associated with high morbidity and mortality rates. In lower-middle-income countries, such as Nigeria, obtaining cardiovascular surgical care for infants remains difficult. In recent years, especially with the assistance of international voluntary cardiac organizations, efforts have increased to provide cardiac surgical services to this underserved population. METHODS: In this case series, the authors describe outcomes in 30 infants surgically treated for patent ductus arteriosus between 2013 and 2019 at an emerging cardiac center in Nigeria (9 male [30%] and 21 female [70%]; mean [SD] age, 8.2 [3.01] months; mean [SD] weight, 5.3 [1.52] kg; mean [range] weight deficit, 34.5% [15%-60%]). RESULTS: All the infants presented with patent ductus arteriosus as the main cardiac lesion, and 4 (13%) were syndromic. The mean (SD) patent ductus arteriosus diameter was 4.73 (1.46) mm. Surgical closure was completed in 29 infants; 1 died before surgery. No procedure-related deaths occurred, but 2 cases of trivial residual patent ductus arteriosus were recorded. CONCLUSION: Overall, surgical outcomes were excellent, with acceptable mortality rates. Perioperative care will continue to improve as the center is built to a self-sustaining capacity. Findings of this research at this emerging cardiac center in a developing country are a testament to the positive contribution made by international voluntary cardiac missions.

Implication of knowledge, lifestyle and self-efficacy in the prevention of cardiovascular diseases' risk factors among the urban elderly.

Background: Cardiovascular disease (CVD) is preventable by effectively managing its risk factors. Such risk factors (smoking, unhealthy eating habits, sedentary lifestyles, etc.) are judged to reflect an individual's self-efficacy, lifestyle modification, and CVD knowledge. Objectives: To evaluate the relationship between lifestyle practices, self-efficacy, and knowledge of CVDs risk factors among the elderly. Methods: A descriptive cross-sectional study was conducted on 424 randomly individuals whose age is ≥60 years. A questionnaire-based survey was administered on the self-efficacy rate, lifestyle practices, and respondents' knowledge of CVDs risk factors. Respondents with a score of ≤50%, 51%-74.99%, and ≥75% were classified as having low, medium, or high self-efficacy. Similarly, the same score was used to classify poor, fair, or good lifestyle; and low, average, or high knowledge. Data were analysed using Statistical Package for Social Sciences, while association among variables was determined using chi-square. Results: Few respondents were involved in physical exercise (1.7%), cigarette smoking (4.5%), regular soft drinks (18.2%), and alcohol consumption (13.2%). Many respondents used excess salt during cooking (92.7%) or ate outside their homes (64.6%). 58.5%, 30.0%, and 11.6% of the respondents had fair, good, and poor lifestyle practices. 11.3%, 58.7%, and 30.0% had low, medium, and high self-efficacy scores. A total of 45.3%, 35.4%, and 19.3% had low, average, and high knowledge. Knowledge and self-efficacy scores were significantly different (P = 0.001). Conclusion: High self-efficacy and its significant relationship with knowledge could mean that CVD risk factors can be checked if the elderly have a proper lifestyle, positive attitudes, and nutrition education.

Ethnozoological and commercial drivers of the pangolin trade in Benin.

BACKGROUND: Pangolins are trafficked in unsustainable volumes to feed both local and global trade networks for their meat and the medicinal properties of their derivatives, including scales. We focus on a West African country (Benin) to assess the medicinal and spiritual values of pangolins among different ethnic groups and identify the cohort of buyers involved in the pangolin trade and related economic values along the chain, notably from local diasporas. METHODS: We organised 54 focus groups in villages surrounding occurrence habitats of pangolins across Benin and conducted 35 individual interviews with vendors from five major traditional medicine markets (TMMs). Our questionnaire addressed the different uses of pangolins, the commercial value of pangolin items, the categories of clients and the related selling prices. RESULTS: Pangolin meat was strictly consumed as food. Scales, head, bones, tongue, blood, heart and xiphisternum were the items used by local communities as part of medicinal (65% of the focus groups) and spiritual (37%) practices. Scales were the most frequently used item (use value index = 1.56). A total of 42 medicinal and spiritual uses, covering 15 International Classification of Diseases (ICD) categories, were recorded among ethnic groups. The ICD and spiritual categories-based analyses of similarity showed a partial overlapping of ethnozoological knowledge across Benin, although knowledge was significantly influenced by ethnicity and geographic location. The pricing of pangolins both varied with the category of stakeholders (local communities vs. stakeholders of TMMs) and clients (local and West African clients vs. Chinese community) and the type of items sold. The Chinese community was reported to only buy pangolins alive, and average selling prices were 3-8 times higher than those to West African clients. CONCLUSIONS: Our results confirm that pangolins in Africa are valuable and versatile resources for consumption and medicinal / spiritual practices. The pangolin trade in Benin is based on an endogenous and complex network of actors that now appears influenced by the specific, high-valued demand from the Chinese diaspora. Further investigations are required to assess the growing impact of the Chinese demand on the African wildlife trade.

Oscillometric blood pressure profile of adolescent secondary school students in Abakaliki metropolis.

Context: Adolescence is characterized by a tremendous pace in growth, biological, and psychosocial changes. This may translate to rapid increases in anthropometric parameters and indulgence in youth risk behaviors, and these are the risk factors for arterial hypertension (HTN). Aim: This study aimed to determine the oscillometric blood pressure (BP) profile of apparently healthy secondary school adolescents in Abakaliki metropolis and its relationship with sex and anthropometric variables. Subjects and Methods: This multistage process selected 2401 students among those aged 10-19 years spanning from August 2015 to January 2016. BP was measured using the oscillometric method. Information on modifiable risk factors for HTN was obtained. Anthropometric parameters were measured. Data were analyzed with Student's t-test, analysis of variance, and correlation analysis. Results: The mean age (years) of the study population was 15.12 ± 2.29. The mean systolic BP (SBP) and diastolic BP (DBP) were 106.72 ± 11.37 mmHg and 63.60 ± 7.34 mmHg, respectively. Females had significantly higher mean DBP but with no significant gender difference in mean SBP. The means of anthropometric parameters were 49.19 ± 10.28 kg, 1.54 ± 0.10 m, and 20.46 ± 2.86 kg/m2 for weight, height, and body mass index, respectively, and all showed significant gender differences, with females having higher values except for height. A relatively low rate of indulgence in alcohol use compared to another study in the same region as well as a significant association of alcohol use among those found to have HTN was noted. The prevalence of HTN was 4.6%, which was significantly higher in females. Conclusions: Routine BP monitoring is recommended for adolescents, especially those with prevailing risk factors including a family history of HTN, obesity, and substance and alcohol misuse. Early detection will help in mitigating the effect of these cardiovascular risk factors.

RésuméContexte: L'adolescence est caractérisée par un rythme de croissance considérable, des changements biologiques et psychosociaux. Cela peut se traduire par rapide. l'augmentation des paramètres anthropométriques et l'indulgence dans les comportements à risque des jeunes, et ce sont les facteurs de risque de l'hypertension artérielle (HTN). But: Cette étude visait à déterminer le profil de pression artérielle oscillométrique d'adolescents apparemment sains du secondaire en La métropole d'Abakaliki et ses relations avec le sexe et les variables anthropométriques. Sujets et méthodes: Ce processus en plusieurs étapes sélectionné 2401 étudiants âgés de 10 à 19 ans entre août 2015 et janvier 2016. La mesure de la pression artérielle a été réalisée à l'aide de la méthode oscillométrique.Des informations sur les facteurs de risque modifiables pour HTN ont été obtenues. Les paramètres anthropométriques ont été mesurés. Les données ont été analysées avec la méthode de Student.test t, analyse de variance et analyse de corrélation. Résultats: L'âge moyen (années) de la population à l'étude était de 15,12 ± 2,29. La moyenne systolique BP (SBP) et diastolique BP (DBP) étaient respectivement de 106,72 ± 11,37 mmHg et 63,60 ± 7,34 mmHg. Les femmes avaient une moyenne significativement plus élevée DBP mais sans différence significative entre hommes et femmes dans le SBP moyen. Les moyennes des paramètres anthropométriques étaient de 49,19 ± 10,28 kg, 1,54 ± 0,10 m, et 20,46 ± 2,86 kg / m2 pour le poids, la taille et l'indice de masse corporelle, respectivement, et tous ont montré des différences significatives entre les sexes, avec les femmes ayant des valeurs plus élevées sauf pour la hauteur. Un taux de consommation d'alcool relativement faible par rapport à une autre étude menée dans la même région ainsi qu'une association significative de consommation d'alcool chez les personnes présentant un HTN. La prévalence de HTN était de 4,6%, ce qui était significativement plus élevé chez les femmes. Conclusions: La surveillance systématique de la TA est recommandée chez les adolescents, en particulier ceux à risque prédominant facteurs, y compris des antécédents familiaux de HTN, d'obésité et d'abus de substances et d'alcool. Une détection précoce aidera à atténuer les effets de ces facteurs de risque cardiovasculaires.

Could we expect new praziquantel derivatives? A meta pharmacometrics/pharmacoinformatics analysis of all antischistosomal praziquantel derivatives found in the literature.

Praziquantel (PZQ) is the first line drug for the treatment of human Schistosoma spp. worm infections. However, it suffers from low activity towards immature stages of the worm, and its prolonged use induces resistance/tolerance. During the last 40 years, 263 PZQ analogues have been synthesized and tested against Schistosoma spp. worms, but less than 10% of them showed significant activity. Here, we propose a rationalization of the chemical space of the PZQ derivatives by a ligand-based approach. First, we constructed an in-house database with all PZQ derivatives available in the literature. This analysis shows a high heterogeneity in the data. Fortunately, all studies include PZQ as a reference, permitting the classification of compounds into three classes according to their activities. Models involving ligand-based pharmacophore and logistic regression were performed. Five physicochemical parameters were identified as the best to explain the biological activity. In the end, we proposed new PZQ derivatives with modifications at positions 1 and 7, we analysed them with our models, and we observed that they can be more active than the previously synthesized derivatives. The main goal of this work was to conduct the most valuable meta-pharmacometrics/pharmacoinformatics analysis with all Praziquantel medicinal chemistry data available in the literature.

The impact of adenotonsillectomy on pulmonary arterial pressure in West African children with adenotonsillar hypertrophy.

OBJECTIVES: To assess the improvement or otherwise, in the mean pulmonary arterial pressure (mPAP) among children with adenotonsillar hypertrophy (ATH) after adenotonsillectomy (AT), and to examine the impact of timing of surgery as well as the patients' characteristics on the mPAP changes. METHODS: We included 39 children with ATH in this study. The adenoidal enlargement was evaluated radiologically with adenoid nasopharyngeal ratio (ANR) parameter from lateral neck radiograph, whereas the clinical assessment of adeno-tonsillar obstruction was conducted with the 'symptom score'. Pulmonary arterial pressure (PAP) measurement was performed noninvasively by Doppler echocardiography. All patients underwent adenotonsillectomy (AT). After 6 weeks, they were subjected again to clinical and echocardiographic assessments, and the mean pulmonary arterial pressures (mPAP) were then compared. The mPAP changes after AT were further related to the grades of ANR, symptom scores, tonsillar size, and timing of AT. RESULTS: The preoperative mPAP was 23.46 mmHg and was 18.98 mmHg post-operatively (P = 0.003). Seventeen of subjects (43.6%) had pulmonary hypertension (PH) (mPAP ≥ 25 mmHg) preoperatively, out of which 14 (82%) decreased to normal range 6 weeks after AT. Non-reversal of pulmonary hypertension was associated with ANR > 0.75 (P = 0.043), but was not related to the timing of surgery, tonsillar size, and symptom score. Significant reduction in mPAP was more likely with ANR ≤ 0.75 and pre-operative mPAP ≥ 25 mmHg. All the symptoms also improved significantly after AT. CONCLUSION: Elevated PAP due to ATH in children was mostly reversible by AT irrespective of the timing of surgery, symptom severity, and tonsillar size, but gross enlargement of adenoids seem to be associated with non-reversal of PH.

Atrial septal defects: Pattern, clinical profile, surgical techniques and outcome at Innova heart hospital: A 4-year review.

BACKGROUND: Atrial septal defect (ASD) is a congenital heart defect that leads to shunting of blood between left and right atria. It may be asymptomatic and sometimes may present with heart failure. Surgical repair is definitive, but currently non-surgical procedure is used to close the defect. MATERIALS AND METHODS: It is a retrospective study of patients who underwent transcatheter closure of ASD at Innova Heart Hospital, Hyderabad, India. Echocardiography was repeated at intervals of 24 hours, then at 1, 3 and 6 months after the procedure to assess complications. The morphological characteristics of the ASD, including its diameter, location, shape and the width of surrounding septal margins, were also evaluated. RESULTS: From April 2007 to June 2011, 69 consecutive children (29 males, 40 females) with a median age of 9.0 years (range = 3.2-19 years) registered with diagnosis of ASD. The median weight was 31.5 kg (range = 7.5-39.0 kg). Five patients (7.2%) were young children aged 3-5 years. Forty-four (63.8%) of these children presented with symptoms of heart failure, whereas 47 (68.1%) of the cases repaired with device were large-sized ASD. The most common interventional procedures done were Searcare Heart(®) and Amplatzer(®) technique with a highest success rate obtained in 2010. CONCLUSIONS: ASD is a common congenital heart disease with a high success rate for those who undergo intervention.

Development of mycosis fungoides after bone marrow transplantation for chronic myeloid leukaemia: transmission from an allogeneic donor.

We report on a patient who developed donor-derived cutaneous T-cell lymphoma (CTCL) 4 years after successful treatment of chronic myeloid leukaemia with an allogeneic bone marrow transplant. The patient developed an eczematous rash unresponsive to topical therapy and immunosuppression. When CTCL was diagnosed in the recipient, his sibling donor had been attending his local dermatology unit with a maculosquamous rash, which proved subsequently to be mycosis fungoides. An identical pattern of donor and recipient clonality assessment and T-cell receptor gene sequencing indicated that the CTCL was probably transmitted in the bone marrow harvest. This suggests that CTCL cells circulate in the marrow at an early subclinical stage in this disease. This is the second case of donor-derived CTCL reported to date.

Hypertension and prehypertension among adolescents in secondary schools in Enugu, South East Nigeria.

BACKGROUND: Hypertension is a prevalent cardiovascular disease risk factor among blacks and adolescent hypertension can progress into adulthood. OBJECTIVE: To determine the prevalence of hypertension and prehypertension among secondary school adolescents in Enugu South East Nigeria. METHODOLOGY: A study of 2694 adolescents aged 10-18 years in Enugu metropolis was carried out. Socio-demographic profile anthropometric and blood pressure readings were obtained. Derived measurements such as Prehypertension, hypertension and BMI were obtained. RESULTS: The results showed that the mean systolic blood pressure and diastolic blood pressure for males were 106.66+ 11.80 mmHg and 70.25 + 7.34 mmHg respectively. The mean SBP and DBP for females were 109.83+ 11.66 mmHg and 72.23 + 8.26 mmHg respectively (p < 0.01). Blood pressure was found to increase with age. Prevalence of hypertension and prehypertension was 5.4% and 17.3% respectively with a higher rate in females (6.9%) than males (3.8%). Prevalence of prehypertension among males and females were 14.3% and 20.1% respectively. The prevalence of obesity was 1.9%. CONCLUSION: Modifiable risk factors exist among adolescents. Early lifestyle modification and a strengthened school health are recommended.

Enteropathy associated T-cell lymphoma resulting in restrictive cardiomyopathy and mimicking myocardial infarction.

A 64-year-old woman was referred with a short history of abdominal pain, anorexia and weight loss. Investigations revealed a probable enteropathy associated T-cell lymphoma (EATL). Further investigations revealed evidence of what appeared to be a myocardial infarction. After going through laparoscopy to obtain diagnostic tissue, the patient developed cardiogenic shock which proved refractory to medical therapy. Postmortem examination revealed diffuse abdominal lymphoma consistent with EATL. Surprisingly, there was extensive infiltration of the myocardium. This report demonstrates an unusual pathology resulting from EATL and discusses the limited evidence relating to cardiac involvement of this disease.

Autologous stem cell transplantation in myeloma: the St James's Hospital experience, 1997-2003.

BACKGROUND: High-dose treatment with autologous stem cell transplantation (ASCT) has become the standard of care for patients with myeloma below the age of 65 years. AIMS: We report an audit of 60 patients (median age: 52.5 years) who underwent ASCT in the National Bone Marrow Transplant centre in St James's Hospital in Dublin between 1997 and 2003 inclusive. METHODS: Clinical and laboratory data were retrieved from patient medical records and hospital information management systems. RESULTS: Thirty-six patients had IgG, 11 IgA, 1 IgD, 9 light chain and 3 non-secretory MM. Fifty-seven (95%) patients received anthracycline-corticosteroid combination chemotherapy prior to autografting. There was no transplant-related mortality (TRM). Complete (CR) and Partial Responses (PR) were seen in 16 (29.6%) and 29 (53.7%) of those evaluable (n = 54 (90%)). The actuarial Progression-Free (PFS) and Overall Survival (OS) rates at five years are 13% and 55% respectively. CONCLUSION: Centre outcome is comparable to published international series and supports the use of ASCT in the treatment of this malignancy.

mROC: a computer program for combining tumour markers in predicting disease states.

Receiver operating characteristic (ROC) curves are limited when several diagnostic tests are available, mainly due to the problems of multiplicity and inter-relationships between the different tests. The program presented in this paper uses the generalised ROC criteria, as well as its confidence interval, obtained from the non-central F distribution, as a possible solution to this problem. This criterion corresponds to the best linear combination of the test for which the area under the ROC curve is maximal. Quantified marker values are assumed to follow a multivariate normal distribution but not necessarily with equal variances for two populations. Other options include Box-Cox variable transformations, QQ-plots, interactive graphics associated with changes in sensitivity and specificity as a function of the cut-off. We provide an example to illustrate the usefulness of data transformation and of how linear combination of markers can significantly improve discriminative power. This finding highlights potential difficulties with methods that reject individual markers based on univariate analyses.

Rhabdomyosarcoma of the paratesticular tissues.

We report 2 cases of rhabdomyosarcoma of the paratesticular tissues. Differentiation from chronic epididymal infection, such as tuberculosis, may be difficult but it must not delay operation. Lymphography is of limited value in delineating lymph node metastases. In both cases secondary spread was suggested but not confirmed histologically. Lymphography, because of a definite mortality rate of 0.1 per cent and morbidity rate of 1 per cent, would appear not to be indicated.

Hypospadias in the true hermaphrodite.

A case is reported of a six-year-old boy who, after several attempts at the repair of hypospadias, was investigated urologically, and was found to be a true hermaphrodite. The necessity of investigation of the genitourinary tract before undertaking the repair of hypospadias is emphasized.