Spectrum of carotid arterial Doppler abnormalities among stroke patients at a tertiary care centre in North West Nigeria.

Background: Stroke is the second most common cause of death worldwide. It also represents one of the most common causes of disability, affecting both children and adults. The identification of risk factors for stroke is critical in preventing its occurrence. Carotid atherosclerosis is one of the most significant risk factors of stroke, yet it is not routinely evaluated in these patients. Materials and Methods: We prospectively recruited 119 patients aged ≥18 years with stroke confirmed by computed tomography scan. The risk factors for stroke in these patients were identified, and carotid artery Doppler was performed to identify those with atherosclerosis. Results: Eighty-one (68%) of the 119 subjects showed abnormalities in the carotid arteries in the form of increased IMT or atheromatous plaque. The mean ± SD IMT of the right common carotid artery (CCA) was 1.07 ± 0.25 mm and 1.08 ±â€¯0.26 mm for the left CCA. The IMT mean ±â€¯SD of the right and left ICA were 0.99 ± 0.18 mm and 0.99 ± 0.17 mm, respectively. There were 36 patients (30.2%) with atheromatous plaques, of which 57.8% were unstable and liable to rupture. The carotid bulbs were the most common sites for plaques, accounting for 47.2% of cases. No abnormalities in velocimetric indices were recorded. Conclusion: Carotid atherosclerosis is common in stroke patients and is a major risk factor. The evaluation of stroke patients for carotid atherosclerosis is rarely done, as most of the subjects examined only had it for the first time in this study after development of stroke.

Strengthening education and training programmes for medical physics in Asia and the Pacific: the IAEA non-agreement technical cooperation (TC) regional RAS6088 project.

This article documents the work conducted in implementing the IAEA non-agreement TC regional RAS6088 project "Strengthening Education and Training Programmes for Medical Physics". Necessary information on the project was collected from the project counterparts via emails for a period of one month, starting from 21st September 2023, and verified at the Final Regional Coordination Meeting in Bangkok, Thailand from 30th October 2023 to 3rd November 2023. Sixty-three participants were trained in 5 Regional Training Courses (RTCs), with 48%, 32% and 20% in radiation therapy, diagnostic radiology, and nuclear medicine, respectively. One RTC was successfully organised to introduce molecular biology as an academic module to participants. Three participating Member States, namely United Arab Emirates (UAE), Nepal and Afghanistan have initiated processes to start the postgraduate master medical physics education programmes by coursework, adopting the IAEA TCS56 Guidelines. UAE has succeeded in completing the process while Nepal and Afghanistan have yet to initiate the programme. The postgraduate master medical physics programmes by coursework were strengthened in Indonesia, Jordan, Malaysia, Pakistan, Syria, and Thailand, along with the national registration of medical physicists. In particular, Thailand has revised 6 postgraduate master medical physics programmes by coursework during the tenure of this project. Home Based Assignment and RTCs have resulted in two publications. In conclusion, the RAS6088 project was found to have achieved its planned outcomes despite challenges faced due to the COVID-19 pandemic. It is proposed that a follow up project be implemented to increase the number of Member States who are better prepared to improve medical physics education and training in the region.

Doppler Sonographic Characteristics and Clinical Outcomes of Diabetic Foot Syndrome: A 5-Year Audit from a Tertiary Hospital in Northern Nigeria.

Background: Diabetes foot syndrome is one of the common complications of diabetes. Detailed information on the clinical and vascular characteristics of patients with diabetic foot disease in relation to the outcome of the care provided to these patients will be useful to policymakers and clinicians in early detection and timely interventions for the prevention of disabling complications. Materials and Methods: This is a review of patients with diabetic foot managed in Aminu Kano Teaching Hospital over 5 years (January 2017-May 2022). The sociodemographic characteristics, Wagner classification of the foot, Doppler sonographic characteristics and clinical outcomes, etc., were reviewed. Results: A total of 51 patients were reviewed. Males and females accounted for 56.8% and 43.1%, respectively. Twenty-five patients had Wagner grade 4 ulcers, and fewer patients had Wagner grade 1 and 5-foot ulcers. The mean ± standard deviation Doppler arterial intimal media thickness was 1.53 ± 0.33 (range 0.90-2.40 mm). The majority of DFS patients had Doppler sonographic lesions on the right lower limb 28 (54.9%) only, and 11 (21.6%) of the lesions were bilateral. The posterior tibial artery 11 (21.6%) was the most involved arterial segment with plaques, followed by a combination of popliteal and tibial arterial 10 (19.6%) segments. At 6 months, 45.2% had limb amputation, 17.6% healed ulcers, 17.6% delayed wound healing, and 9.8% died. Conclusion: There is an unacceptably high prevalence of poor treatment outcomes, thus, contributing to a huge burden of care to patients living with diabetes. There is a strong association between severe arterial stenosis detected by Doppler ultrasound and higher rates of amputations.

Aberrant right coronary artery in an elderly Nigerian with recent dyspnoea detected on coronary CT angiogram.

An anomalous origin of the right coronary artery has been documented in up to 0.92% of the general population, which is more common than an anomalous origin of the left coronary artery. We present a case of an elderly hypertensive man who developed mild dyspnoea on exertion for 3 months with associated retro-sternal pain as well as occasional palpitation which all tend to subside at rest. An electrocardiogram showed evidence of left atrial enlargement. A coronary computed tomographic angiogram was acquired with a 160-slice scanner which revealed the right coronary artery to originate from the left aortic sinus with a retro-aortic pattern of anatomical course. Vascular wall calcifications were noted with multilevel luminal narrowing on the left anterior descending however distal opacification was adequate. Our case further depicts the reason for keeping in mind anatomical variations while evaluating cardiac pathologies even among Black Africans.

Prospective dose monitoring using a manual dose management system: experience in brain computed tomography from a tertiary hospital in Nigeria.

A manual radiation dose management system was developed to track the radiation dose and scan parameters of patients for brain computed tomography (CT). Radiation dose in volume computed tomography dose index (CTDIvol) and dose length product (DLP) were monitored to identify procedures that may require optimisation using notification values. The data were analysed and compared with national and international diagnostic reference levels (DRLs). A total of 596 brain CTs were monitored and grouped as <1: 36, 1-<5: 38, 5-<10: 25, 10-<15: 31 and adult: 466. The CTDIvol notification value identified the following number of examinations having high CTDIvol in <1 y: 1, 1-<5: 1, 5-<10: 0, 10-<15: 0 and adult (>15): 11. Furthermore, the DLP notification values identified the following examinations with high DLP in <1 y: 1, 1-<5:1, 5-<10:1, 10-<15: 1 and adults (>15): 18. The established local paediatric DLP DRLs were 2-3 times higher than the international paediatric DLP DRLs. This calls for a total protocol review and optimisation considering the local CT practices for paediatric imaging.

Prevalence and Determinants of Endothelial Dysfunction among Adults Living with HIV in Northwest Nigeria.

Background: Endothelial dysfunction constitutes an early pathophysiological event in atherogenesis and cardiovascular disease. This study aimed to assess the prevalence, determinants, and degree of endothelial dysfunction in antiretroviral therapy (ART)-treated people living with HIV (PLWH) in northwestern Nigeria using brachial flow-mediated dilatation (FMD). Methods: This was a comparative, cross-sectional study. A total of 200 ART-treated adults living with HIV with no evidence of kidney disease were compared with 200 HIV-negative participants attending a tertiary hospital in Kano, Nigeria, between September 2020 and May 2021. Endothelial function was evaluated by measuring FMD with a high-resolution vascular ultrasound transducer. FMD was calculated as the ratio of the brachial artery diameter after reactive hyperemia to baseline diameter and expressed as a percentage of change. Blood and urine samples were obtained from participants in both arms. Urine albumin-to-creatinine ratio (uACR) was calculated using the 2021 CKD-EPI estimated glomerular filtration rate (eGFR) creatinine-cystatin C equation without the race variable, and low-density lipoprotein (LDL) cholesterol was measured using enzymatic method. Results: The overall mean age (± standard deviation) of the study participants was 42 ± 11 years. Participants in the comparison arm were younger than PLWH (38 ± 11 versus 46 ± 10 years, respectively). The median (interquartile range) uACR was 41.6 (23.2-162.9) mg/g for the ART-treated PLWH versus 14.5 (7.4-27.0) mg/g for healthy controls. PLWH had a significantly lower mean percent FMD when compared to HIV-negative participants (9.8% ± 5.4 versus 12.1% ± 9.2, respectively). Reduced FMD was independently associated with HIV infection (ß = -2.83%, 95% CI, -4.44% to -1.21%, p = 0.001), estimated glomerular filtration rate (ß = -0.04%, 95% CI, -0.07% to -0.01%, p = 0.004) and LDL cholesterol (ß = -1.12%, 95% CI, -2.13% to -0.11%, p = 0.029). Conclusion: HIV-positive status, lower estimated GFR, and higher LDL cholesterol levels were independently associated with endothelial dysfunction. Future prospective studies with larger cohorts of persons living with HIV (and age- and sex-matched HIV-negative controls) are needed to gain further insight into these important findings. In the interim, aggressive management of modifiable risk factors is warranted.

Prevalence and risk factors of obstetric violence in the Gaza strip: A retrospective study from a conflict setting.

OBJECTIVES: To assess the prevalence and risk factors of obstetric violence (OV) among laboring women in the past 5 years in the Gaza Strip (GS). METHODS: Women who delivered between January 2017 and December 2021 were invited to complete an anonymous online survey between November 2021 and February 2022 to explore their experiences of labor. RESULTS: Seven hundred twenty-two women completed the online questionnaire. Two-thirds (484; 67.2%) were in their 20s, and half (362; 50.1%) were from low socioeconomic households. A vast majority (508; 70.4%) delivered in a government hospital. Four out of ten (300; 41.6%) reported experiencing at least one form of OV. Among these women, the types of OV reported were physical (143; 47.8%), psychological (122; 40.8%), verbal (109; 36.4%), and sexual (13; 4.4%). Delivery in private facilities (adjusted odds ratio [AOR] 0.45, 95% confidence interval [CI] 0.32-0.74) and prior knowledge of the care provider (AOR 0.37, 95% CI 0.23-0.59) were both independently protective for OV. In contrast, women's awareness of OV increased their likelihood of reporting it (AOR 3.45, 95% CI 2.37-5.01). CONCLUSION: GS has an alarming prevalence of reported OV. Increasing awareness of OV, identifying its causes, and developing locally led initiatives to eliminate it are urgently needed.

E-Learning Medical Education in Gaza During COVID-19: Students' Experiences and Policy Recommendations.

Objectives: We explored medical students' perspectives on and experiences of e-learning in Gaza and proposed relevant policy recommendations. Methods: We administered an online questionnaire to medical students in Gaza exploring (1) demographics, computer skills, and time spent on e-learning; (2) students' perception and challenges of e-learning; and (3) students' preferences of continuing medical e-learning in the future. Analysis was done using SPSS version 23. Results: Out of 1830 students invited, 470 responded, and 227 of them were basic-level students. More female students responded (58.3%, n = 256). Most participants (n = 413, 87.9%) reported moderate to high computer skills allowing them to access e-learning. Before coronavirus disease-19 (COVID-19), over two-thirds (n = 321, 68.3%) spent 0-3 hours on e-learning. After COVID-19, the majority shifted, and 306 students (65.1%) reported spending at least 7 hours on various e-learning sources. The challenges for clinical-level students were mainly related to lack of practical training in the hospital (n = 196, 80%), followed by lack of interactions with real patients (n = 167, 68.7%). As for basic-level students, a majority (n = 120, 52.8%) reported lack of practical skills (eg, lab skills) as a challenge followed by unreliable internet access (n = 119, 52.4%). Pre-recoded lectures, readily available educational videos were used more than live lectures. Less than a third of all students (n = 147, 31.3%) wanted e-learning in the next term. Conclusions: Medical students in Gaza don't have a favourable experience with online medical education. There need to be actions to help overcome the challenges faced by students. This requires orchestrated actions by the government, universities, and local and international organizations.

Auditing the Findings of Computed Tomographic Angiographic Examinations Using 160-Slice Scanner: Analysis of 5-Year Experiences from Northwestern Nigeria.

Background: Computed tomographic angiography (CTA) is a promising tool for the rapid characterisation of the anatomy and structural lesions of the vascular system. Aim/Objectives: The aims/objectives of the study were to determine the frequency and pattern of vascular lesions in northern Nigeria. We also set to determine the agreement between clinical and CTA diagnosis of vascular lesions. Materials and Methods: We study patients that had CTA studies over a 5-year period. In total, 361 patients were referred for CTA, but only the records of 339 of them were retrieved and analysed. The information about patients' characteristics, clinical diagnosis, and the findings on CTA was also retrieved and analysed. The categorical data results were expressed as proportions and percentages. The Cohen's kappa coefficient (κ statistic) was used to determine the agreement between the clinical and CTA findings. A P value of <0.05 was considered statistically significant. Results: The mean (standard deviation) age of the subjects was 49.3 (17.9) years with a range of 1-88 years, consisting of 138 (40.7%) females. Up to 223 patients had various abnormalities on CTA. There were 27 (8.0%) cases of aneurysms, eight (2.4%) cases of arteriovenous malformations, and 99 (29.2%) cases of stenotic atherosclerotic disease. There was a significant agreement between the clinical diagnosis and corresponding findings on CTA showed for intracranial aneurysms (k = 15.0%; P < 0.001), for pulmonary thromboembolism (k = 4.3%; P < 0.001), and for coronary artery disease (k = 34.5%; P < 0.001). Conclusions: The study found that close to 70% of the patients referred for CTA have abnormal findings, out of which stenotic atherosclerosis and aneurysm are the common findings. Our findings highlighted the diagnostic value of CTA variety of clinical conditions and underscored the prevalence of many vascular lesions in our environment, which hitherto were regarded as uncommon.

RADIATION DOSE MANAGEMENT SYSTEM IN COMPUTED TOMOGRAPHY PROCEDURES: A SYSTEMATIC REVIEW.

A systematic literature review was carried out to explore articles that reported the use of radiation dose management systems (RDMSs) in computed tomography (CT). The preferred reporting items for systematic review and meta-analysis flow chart were used to screen articles in PubMed, EBSCOhost, Web of Science, SCOPUS and Cochrane Library. A total of 1041 articles were retrieved and screened. After evaluation against criteria, 38 articles were selected and synthesised narratively. The results revealed that several RDMSs have been used in CT. The review also indicated that the use of RDMSs has promoted the implementation of diagnostic reference levels for dose optimisation. A RDMS, such as DoseWatch, is associated with compatibility challenges and failure in data transmission, while manual RDMSs are cumbersome and prone to data entry errors. Thus, a robust automated RDMS that is compatible with the different CT systems would provide efficient CT dose management.

Quality of life is associated with vaccine reluctance via mental health and fear of covid-19: an exploratory investigation on a Palestinian sample.

Quality of life (QoL) has been studied as an antecedent of good mental health in contexts characterized by extreme poverty and acute conflict. The covid-19 crisis exacerbated the risks of health-related consequences in such contexts. Vaccination campaigns have been started worldwide to contain the virus outbreak with high rates of hesitancy and refusal. Our exploratory study sheds light on the relationship between QoL and vaccine reluctance via mental health and fear of covid-19 in a Palestinian population affected by military occupation or socioeconomic marginalization. Who-QolBref, Fcov-19, and Dass were administered to 1122 Palestinian adults living in the occupied territories and Israel. Structural equation modelling was applied to test the relations between variables. Results showed that fear of COVID-19, stress, anxiety and depression mediated the association between QoL and vaccination reluctance with a good model fit (χ2 (5) = 828.37; p = .001; GFI=.93; AGFI=.94; RMSEA=.046; NFI=.94; CFI=.95). QoL and mental health were negatively associated with stress (ßX, Y = - .35; p < .001), depression (ßX, Y = -.37; p < .001), and anxiety (ßX, Y = -.36; p < .001). QoL and fear of COVID- 19 (ßX, Y = -.16; p < .001) were inversely correlated. A positive effects was found between stress (ßM, Y = .17; p < .001), anxiety (ßM, Y = .18; p < .001), and depression (ßM, Y = .17; p < .001), fear of COVID-19 and vaccination reluctance (ßX, Y = .23; p < .001). According to our findings, Public health measures to ease the social suffering of people with low QoL due to conflict and social marginality might favour the acceptance of the vaccine.

Perceptions and attitudes towards Covid-19 vaccines: narratives from members of the UK public.

Aim: The aim of the paper is to enhance understanding of how members of the public make sense of the Covid-19 vaccines and to understand the factors influencing their attitudes towards such artefacts of pandemic governance. Methods: The paper draws on 23 online in-depth interviews with members of the UK public and builds on relevant literature to examine participants' perceptions of the benefits and risks of Covid-19 vaccines, the sources that have shaped their attitudes, and the level of trust they have towards the government's handling of the pandemic through vaccines. Results: The findings indicate that participants generally felt that the benefits of having the vaccine outweigh the risks and that Covid-19 vaccines are a crucial mechanism for enabling society to return to normal. Vaccine acceptance was, for some, strongly linked to a sense of social responsibility and the duty to protect others. However, some participants expressed concerns with regard to the side-effects of Covid-19 vaccines and their perceived potential impact on fertility and DNA makeup. Participants used various sources of information to learn about Covid-19 vaccines and understand their function, benefits, and risks. The majority of participants criticised the government's response during the early stages of the pandemic yet felt positive about the vaccine rollout. Conclusion: Just as with any other vaccination programme, the success of the Covid-19 immunisation campaigns does not only depend on the efficacy of the vaccines themselves or the ability to secure access to them, but also on a myriad of other factors which include public compliance and trust in governments and health authorities. To support an effective immunisation campaign that is capable of bringing the pandemic to an end, governments need to understand public concerns, garner trust, and devise adequate strategies for engaging the public and building more resilient societies.

A multi-institutional evaluation of small field output factor determination following the recommendations of IAEA/AAPM TRS-483.

PURPOSE: The aim of this work was to test the implementation of small field dosimetry following TRS-483 and to develop quality assurance procedures for the experimental determination of small field output factors (SFOFs). MATERIALS AND METHODS: Twelve different centers provided SFOFs determined with various detectors. Various linac models using the beam qualities 6 MV and 10 MV with flattening filter and without flattening filter were utilized to generate square fields down to a nominal field size of 0.5 cm × 0.5 cm. The detectors were positioned at 10 cm depth in water. Depending on the local situation, the source-to-surface distance was either set to 90 cm or 100 cm. The SFOFs were normalized to the output of the 10 cm × 10 cm field. The spread of SFOFs measured with different detectors was investigated for each individual linac beam quality and field size. Additionally, linac-type specific SFOF curves were determined for each beam quality and the SFOFs determined using individual detectors were compared to these curves. Example uncertainty budgets were established for a solid state detector and a micro ionization chamber. RESULTS: The spread of SFOFs for each linac and field was below 5% for all field sizes. With the exception of one linac-type, the SFOFs of all investigated detectors agreed within 10% with the respective linac-type SFOF curve, indicating a potential inter-detector and inter-linac variability. CONCLUSION: Quality assurance on the SFOF measurements can be done by investigation of the spread of SFOFs measured with multiple detectors and by comparison to linac-type specific SFOFs. A follow-up of a measurement session should be conducted if the spread of SFOFs is larger than 5%, 3%, and 2% for field sizes of 0.5 cm × 0.5 cm, 1 cm × 1 cm, and field sizes larger than 2 cm × 2 cm, respectively. Additionally, deviations of measured SFOFs to the linac-type-curves of more than 7%, 3%, and 2% for field sizes 0.5 cm × 0.5 cm, 1 cm × 1 cm, and field sizes larger than 1 cm × 1 cm, respectively, should be followed up.

Effectiveness of lumbar stabilization exercise with real-time ultrasound imaging biofeedback on lumbar multifidus muscle cross-sectional area in individuals with non-specific chronic low back pain: a study protocol for a randomized controlled trial.

BACKGROUND: Structural impairment of the lumbar multifidus muscle, such as reduced cross-sectional area, is evident among individuals with chronic low back pain. Real-time ultrasound imaging (RUSI) biofeedback has been reported to improve preferential activation of as well as retention in the ability to activate the lumbar multifidus muscle during lumbar stabilization exercises (LSE). However, evidence of the effectiveness of this treatment approach in individuals with non-specific chronic low back pain (NCLBP) is still limited. The purpose of this study is, therefore, to determine the effectiveness of LSE with RUSI biofeedback on lumbar multifidus muscle cross-sectional area in individuals with NCLBP. METHODS/DESIGN: This study is a prospective, single-center, assessor-blind, three-arm, parallel randomized controlled trial to be conducted at National Orthopedic Hospital, Kano State, Nigeria. Ninety individuals with NCLBP will be randomized in a 1:1:1: ratio to receive LSE, LSE with RUSI biofeedback, or minimal intervention. All participants will receive treatment twice weekly for 8 weeks. The primary outcome will be the lumbar multifidus muscle cross-sectional area. The secondary outcomes will include pain (Numerical Pain Rating Scale), functional disability (Roland-Morris Disability Questionnaire), and quality of life (12-Item Short-Form Health Survey). All outcomes will be assessed at baseline, 8 weeks post-intervention,  and 3 months follow-up. DISCUSSION: To our knowledge, this study will be the first powered randomized controlled trial to compare the effectiveness of LSE training with and without RUSI biofeedback in individuals with NCLBP. The outcome of the study may provide evidence for the effectiveness of LSE with RUSI biofeedback on enhancing the recovery of the lumbar multifidus muscle in individuals with NCLBP. TRIAL REGISTRATION: Pan African Clinical Trials Registry ( PACTR201801002980602) . Registered on January 16, 2018.

Measurement of the scattered neutrons using the shadow cone methodology in a neutron calibration bunker.

In this work, the contribution of scattered neutrons, in a neutron calibration bunker, was determined using the shadow cone technique. The measurements of the ambient dose equivalent rate in the presence and absence of the shadow cone were used to calculate the contribution ratio of scattered neutron, and to perform the needed correction for the scattered neutrons. The scattered neutron correction was performed according the recommendation of the ISO/DIS8529-2, and the results agreed to the inverse-square law.

Clinical Rationale for a Routine Testing Schedule Using Donor-Derived Cell-Free DNA After Kidney Transplantation.

Kidney transplant recipients require meticulous clinical and laboratory surveillance to monitor allograft health. Conventional biomarkers, including serum creatinine and proteinuria, are lagging indicators of allograft injury, often rising only after significant and potentially irreversible damage has occurred. Immunosuppressive medication levels can be followed, but their utility is largely limited to guiding dosing changes or assessing adherence. Kidney biopsy, the criterion standard for the diagnosis and characterization of injury, is invasive and thus poorly suited for frequent surveillance. Donor-derived cell-free DNA (dd-cfDNA) is a sensitive, noninvasive, leading indicator of allograft injury, which offers the opportunity for expedited intervention and can improve long-term allograft outcomes. This article describes the clinical rationale for a routine testing schedule utilizing dd-cfDNA surveillance at months 1, 2, 3, 4, 6, 9, and 12 during the first year following kidney transplantation and quarterly thereafter. These time points coincide with major immunologic transition points after transplantation and provide clinicians with molecular information to help inform decision making.

Long-term health effects after conflict-related traumatic amputation among patients in Gaza.

BACKGROUND: In the past 10-15 years, thousands of civilians in Gaza have experienced conflict-related traumatic injuries. How injuries affect survivors' risks of negative long-term health effects and serious illness is unclear. We report follow-up findings in a group of patients with traumatic amputations. METHODS: Eligible patients had traumatically amputated limbs and showed signs and symptoms of possible serious illness on standardised clinical examination. The patients were all receiving rehabilitation treatment at the Artificial Limbs and Polio Centre, Gaza, which is the main provider of rehabilitation and protheses. All patients had suffered from at least one amputation during Israeli military incursions between 2006 and 2016. All were offered referral to the Al-Shifa Hospital, Gaza, for further diagnostic clinical, radiological, and laboratory tests. Each patient was examined by CT of the abdomen (or ultrasonography if CT could not be performed) and chest and MRI of the amputation stump or stumps. Laboratory analyses included ESR, complete blood count, kidney and liver function tests, serum glucose, creatine kinase, lactate dehydrogenase, and hepatitis B and hepatitis C virus infections. FINDINGS: Of 254 traumatically amputated patients assessed, 105 had signs and symptoms of possible serious illness, among whom 94 accepted referrals. 88 (93%) of 94 were men and the median age was 31.5 years, mean age 34 years (SD 9·6). Of 90 patients who had imaging, 19 (21%) patients had fatty liver infiltration, three (<1%) had lung nodules, and ten had lung atelectasis. Shrapnel was found in the chest of 12 patients (13%), the abdomen of five patients (6%), the scrotum of one patient (<1%), in the amputation stumps of 26 patients (29%), and the non-amputated limbs of eight patients (1%). Three (<1%) of 90 patients had liver lesions. 32 (34%) of 94 patients had elevated ESR, 19 (20%) had elevated liver enzyme concentrations, and 12 (13%) were anaemic. Two patients tested positive for hepatitis C virus and three were positive for hepatitis B virus (one with fatty liver changes). Two of the 19 patients with fatty liver infiltration were diagnosed as having type 2 diabetes. A limitation of this study is that, owing to conflict-related supply-chain issues in Gaza, we were unable to collect complete data in four (5%) of patients. INTERPRETATION: As well as residual shrapnel in more than half of patients, a notable proportion of patients had fatty liver infiltration, for which we have no clear hypothesis. We recommend close medical follow-up for trauma patients in injured by explosives. FUNDING: The Norwegian street-artist AFK provided €1,500 to this project, which was used to cover patients' transportation costs.

Doppler velocimetry indices of human immunodeficiency virus-positive pregnant women and their controls at Aminu Kano Teaching Hospital, Kano.

Background: Nigeria is among the countries having a large number of human immunodeficiency virus (HIV)-infected people in Africa with growing number of HIV-positive children, mainly infected by their mothers. Traditional tests diagnose high-risk fetuses very late. Doppler sonography has a potential for detecting high at-risk fetus at a much early stage, so that appropriate measures could be instituted to improve outcomes. This study compared umbilical artery velocimetric parameters among HIV-positive women on highly active antiretroviral therapy (HAART) and their matched controls to determine the possible abnormalities and correlates. Methodology: This was a comparative study that was conducted among HIV-positive pregnant women and their matched controls (HIV-negative pregnant women matched for gestational age and parity) at Aminu Kano Teaching Hospital. History and physical examination, transabdominal ultrasound examination were done on each subject to obtain the basic obstetric parameters. Detailed evaluations of the umbilical arteries on gray scale and duplex Doppler protocols using a 3.5-MHz curvilinear transducer were also done. The data were analyzed using SPSS Version 19.0. Independent samples t-test was used for continuous data. Chi-square test and Fisher's exact test were used for categorical data. P < 0.05 was considered statistically significant. Results: The mean age ± standard deviation (SD) was 30.8 ± 5.50 and 27.6 ± 5.34 for HIV and control groups, respectively. The mean amniotic fluid indices and that of estimated fetal weight for the HIV and control groups showed no statistically significant difference between the two groups. The mean (±SD) umbilical artery diameter of the HIV-infected mothers is wider than their negative controls. Conclusion: The study showed no statistically significant difference between the Doppler indices of HIV-positive pregnant women on HAART and their matched controls.

RésuméContexte: Le Nigéria fait partie des pays ayant un grand nombre de personnes infectées par le virus de l'immunodéficience humaine (VIH) en Afrique avec un nombre croissant d'enfants séropositifs, principalement infectés par leur mère. Les tests traditionnels diagnostiquent très tardivement les fœtus à haut risque. L'échographie Doppler a un potentiel pour détecter les fœtus à haut risque à un stade beaucoup plus précoce, de sorte que des mesures appropriées pourraient être instituées pour améliorer les résultats. Cette étude a comparé les paramètres vélocimétriques de l'artère ombilicale chez les femmes séropositives sous traitement antirétroviral hautement actif (HAART) et leurs témoins appariés pour déterminer les anomalies et les corrélations possibles. Méthodologie: Il s'agit d'une étude comparative menée auprès de femmes enceintes séropositives et de leurs témoins appariés (femmes enceintes séronégatives appariées pour l'âge gestationnel et la parité) à l'hôpital universitaire Aminu Kano. Anamnèse et examen physique, échographie transabdominale ont été réalisés sur chaque sujet pour obtenir les paramètres obstétricaux de base. Des évaluations détaillées des artères ombilicales sur des protocoles d'échelle de gris et Doppler duplex à l'aide d'un transducteur curviligne de 3,5 MHz ont également été effectuées. Les données ont été analysées à l'aide de SPSS version 19.0. Un test t d'échantillons indépendants a été utilisé pour les données continues. Le test du chi carré et le test exact de Fisher ont été utilisés pour les données catégorielles. P <0,05 était considéré comme statistiquement significatif. Résultats: L'âge moyen ± écart type (ET) était de 30,8 ± 5,50 et 27,6 ± 5,34 pour le VIH et les groupes témoins, respectivement. Les indices moyens du liquide amniotique et celui du poids fœtal estimé pour les groupes VIH et contrôle n'ont montré aucune différence statistiquement significative entre les deux groupes. Le diamètre moyen (± ET) de l'artère ombilicale des mères infectées par le VIH est plus large que leurs témoins négatifs. Conclusion: L'étude n'a montré aucune différence statistiquement significative entre les indices Doppler des femmes enceintes séropositives sous HAART et leurs témoins appariés.

Audit of carotid doppler sonography: Spectrum of findings at a tertiary hospital in Northwestern Nigeria.

Introduction: Doppler sonography of the cervical segment of the carotid arteries is becoming a popular tool for evaluating atherosclerosis of the carotid artery. We present the audit of findings on carotid ultrasound examination among patients with clinical suspicion and risks for cerebrovascular disease and possible correlates in Northern Nigeria. Materials and Methods: We performed carotid ultrasound examination on all patients referred for screening and clinical suspicion of cerebrovascular disease within the year 2017. The patients' characteristics, risk factors, presence of atheroma and characteristic of the atheroma, degree of stenotic disease as well as the presence of incidental ultrasound findings were reviewed and documented. Results: Out of the 62 patients, 55 (88.7%) of them had various degrees and types of atheromatous plaques in different segments of the cervical carotid arteries, whereas 7 (11.3%) were normal. The predominant risk factor was smoking followed by diabetes mellitus, whereas the highest indication for the scan was transient ischemic attack. Incidental thyroid lesions such as nodules and cysts were encountered in 14 (22.6%) of the patients. There is a statistically significant difference between sex and age with the side of lesion, degree of stenosis, segment involved, and type of atheromatous plaque. Conclusion: There is a statistically significant difference between sex and age with the side of lesion, degree of stenosis, segment involved, and type of atheromatous plaque. About one-fifth of our patients had incidental thyroid lesions. Therefore, routine screening of population at risk is highly recommended.

RésuméIntroduction: l'échographie Doppler du segment cervical des artères carotides devient un outil populaire pour évaluer l'athérosclérose de l'artère carotide. Nous présentons l'audit des résultats de l'examen échographique carotidien chez les patients avec suspicion clinique et risques de maladie cérébrovasculaire et corrélats possibles dans le nord du Nigéria. Matériaux et méthodes: Nous avons effectué un examen échographique carotidiensur tous les patients référés pour dépistage et suspicion clinique de maladie vasculaire cérébrale au cours de l'année 2017. Les caractéristiques des patients, le risqué facteurs, présence d'athérome et caractéristique de l'athérome, degré de maladie sténotique ainsi que la présence d'une échographie accidentelle les résultats ont été examinés et documentés. Résultats: Sur les 62 patients, 55 (88, 7%) d'entre eux avaient différents degrés et types d'athéromes plaques dans différents segments des artères carotides cervicales, alors que 7 (11,3%) étaient normales. Le facteur de risque prédominant était le tabagisme suivipar le diabète sucré, alors que l'indication la plus élevée pour l'examen était une attaque ischémique transitoire. Lésions thyroïdiennes accidentelles telles que nodules etdes kystes ont été rencontrés chez 14 (22,6%) des patients. Il y a une différence statistiquement significative entre le sexe et l'âge avec le côté de la lésion, degré de sténose, segment impliqué et type de plaque athéromateuse. Conclusion: il existe une différence statistiquement significative entre les sexes et l'âge avec le côté de la lésion, le degré de sténose, le segment impliqué et le type de plaque athéromateuse. Environ un cinquième de nos patients avaientlésions thyroïdiennes accidentelles. Par conséquent, le dépistage systématique de la population à risque est fortement recommandé.