Animal attacks – a red herring of child abuse?

No Abstract. South African Medical Journal Vol. 96 (3) 2006: 184-18

Evaluation of the performance of lecturers in general surgery by 4th- and 6th-year MB ChB students at the University of Limpopo, Polokwane, South Africa

Background. Students’ evaluation of teaching performance is one of the important means of measuring the quality of higher education worldwide. Students are valuable contributors to improvement of the teaching performance of lecturers. For any academic institution, it is very important to receive feedback on teaching quality from students. Objectives. To determine lecturers’ performance as evaluated by undergraduate students in general surgery, with the aim of identifying the lecturers’ strengths and planning tactics for any necessary improvement measures. Methods. This study followed a descriptive research design to evaluate seven lecturers in general surgery by 4th- and 6th-year MB ChB students at the University of Limpopo, Polokwane, South Africa. Results. Seven lecturers were evaluated by the students. From the study results, there is strong evidence that the majority of the participants were satisfied with 5/7 lecturers’ interpersonal skills and communication and presentation style, including an overall rating (p<0.0001). Two lecturers were considered by the students to require some level of improvement in performance (p<0.0001). Conclusion. General surgery students expressed satisfaction with the teaching performance of most members of the academic staff. However, some lecturers need to improve with regard to audibility and preparation for slide presentations

An introduction to surgical challenges and priorities in rural areas

An introduction to surgical challenges and priorities in rural area

The challenges of starting a tertiary orthopaedics centre in a rural area

Rural areas are known to be less well resourced than urban areas. Starting new subspecialty centres in an urban area may be challenging; starting them in rural areas is often even harder. In this article we explore various factors that make starting a tertiary orthopaedics unit difficult. We first discuss the background, followed by general challenges of initiating specialised units in rural areas and then the more specific challenges with regard to orthopaedic surgery, and we finish by discussing some socioeconomic and family issues

An audit of emergency admissions to the adult general surgery department at Pietersburg Hospital, Polokwane, Limpopo Province, South Africa, during an 8-month period in 2021

Background. Emergency general surgery represents illnesses of very diverse pathology, related only by their urgent nature. The burden of general surgery emergency admissions at Pietersburg Hospital in Polokwane, Limpopo Province, South Africa, is currently unknown. Objectives. To describe the demographic characteristics and clinical presentation of general surgical patients admitted to Pietersburg Hospital, as well as their surgical management, in order to plan future resource allocation. Methods. This was a retrospective descriptive audit of patients admitted to the adult general surgery department over the 8-month period April - November 2021. Results. A total of 893 surgical emergency patients treated during the study period were included in the analysis. Of these, 357 were trauma and 536 non-trauma emergency cases. The majority of the patients (61%) were managed non-operatively. Of the 39% who required surgical management, only 24% had their operation performed within the first 24 hours, with the remainder only operated on after a delay owing to unavailability of space in theatre and/or unavailability of an intensive care unit (ICU) bed. Conclusion. The lack of a dedicated surgical emergency theatre and the shortage of ICU beds are burning issues at Pietersburg Hospital and should be addressed as a matter of the greatest urgency

An audit on the preliminary results of endoscopic retrograde cholangiopancreatography performed in the Limpopo Academic Complex, Polokwane, South Africa

Background. Endoscopic retrograde cholangiopancreatography (ERCP) is an endoscopic procedure that is an important treatment modality for the management of hepatic, pancreatic and biliary diseases. The ERCP unit in the Limpopo Academic Complex in Polokwane, South Africa, was established at the end of 2021. Objectives. To identify areas for improvement in the new ERCP unit. Methods. All ERCP procedures were audited in five components: (i) room set-up; (ii) endoscope, guidewires and consumable accessories; (iii) fluoroscopy; (iv) sedation and analgesia; and (v) ERCP endoscopist and staff. These were considered the essential pillars of an ERCP unit. The quality of each component was graded in every ERCP procedure as grade 1 (very poor), grade 2 (below average), grade 3 (average), grade 4 (above average), and grade 5 (highly satisfactory). Results. Nine therapeutic ERCP procedures were performed during the period 10 January - 31 May 2022. Eighteen theatre slots were allocated for ERCP procedures during the study period, but only seven of them were utilised. The quality of ERCP unit components was highest for the sedation and analgesia component (mean grade of 4) and lowest for fluoroscopy (mean 1.8). Conclusion. Establishing a new ERCP service is a task with many challenges. We present the preliminary results of the Limpopo Academic Complex ERCP unit with a view to adding our experience to the current knowledge

Worldwide comparison of survival from childhood leukaemia for 1995–2009, by subtype, age, and sex (CONCORD-2): a population-based study of individual data for 89 828 children from 198 registries in 53 countries

Background Global inequalities in access to health care are reflected in differences in cancer survival. The CONCORD programme was designed to assess worldwide differences and trends in population-based cancer survival. In this population-based study, we aimed to estimate survival inequalities globally for several subtypes of childhood leukaemia. Methods Cancer registries participating in CONCORD were asked to submit tumour registrations for all children aged 0-14 years who were diagnosed with leukaemia between Jan 1, 1995, and Dec 31, 2009, and followed up until Dec 31, 2009. Haematological malignancies were defined by morphology codes in the International Classification of Diseases for Oncology, third revision. We excluded data from registries from which the data were judged to be less reliable, or included only lymphomas, and data from countries in which data for fewer than ten children were available for analysis. We also excluded records because of a missing date of birth, diagnosis, or last known vital status. We estimated 5-year net survival (ie, the probability of surviving at least 5 years after diagnosis, after controlling for deaths from other causes [background mortality]) for children by calendar period of diagnosis (1995-99, 2000-04, and 2005-09), sex, and age at diagnosis (< 1, 1-4, 5-9, and 10-14 years, inclusive) using appropriate life tables. We estimated age-standardised net survival for international comparison of survival trends for precursor-cell acute lymphoblastic leukaemia (ALL) and acute myeloid leukaemia (AML). Findings We analysed data from 89 828 children from 198 registries in 53 countries. During 1995-99, 5-year agestandardised net survival for all lymphoid leukaemias combined ranged from 10.6% (95% CI 3.1-18.2) in the Chinese registries to 86.8% (81.6-92.0) in Austria. International differences in 5-year survival for childhood leukaemia were still large as recently as 2005-09, when age-standardised survival for lymphoid leukaemias ranged from 52.4% (95% CI 42.8-61.9) in Cali, Colombia, to 91.6% (89.5-93.6) in the German registries, and for AML ranged from 33.3% (18.9-47.7) in Bulgaria to 78.2% (72.0-84.3) in German registries. Survival from precursor-cell ALL was very close to that of all lymphoid leukaemias combined, with similar variation. In most countries, survival from AML improved more than survival from ALL between 2000-04 and 2005-09. Survival for each type of leukaemia varied markedly with age: survival was highest for children aged 1-4 and 5-9 years, and lowest for infants (younger than 1 year). There was no systematic difference in survival between boys and girls. Interpretation Global inequalities in survival from childhood leukaemia have narrowed with time but remain very wide for both ALL and AML. These results provide useful information for health policy makers on the effectiveness of health-care systems and for cancer policy makers to reduce inequalities in childhood survival

Measurement and interpretation of same-sign W boson pair production in association with two jets in pp collisions at s = 13 TeV with the ATLAS detector

This paper presents the measurement of fducial and diferential cross sections for both the inclusive and electroweak production of a same-sign W-boson pair in association with two jets (W±W±jj) using 139 fb−1 of proton-proton collision data recorded at a centre-of-mass energy of √s = 13 TeV by the ATLAS detector at the Large Hadron Collider. The analysis is performed by selecting two same-charge leptons, electron or muon, and at least two jets with large invariant mass and a large rapidity diference. The measured fducial cross sections for electroweak and inclusive W±W±jj production are 2.92 ± 0.22 (stat.) ± 0.19 (syst.)fb and 3.38±0.22 (stat.)±0.19 (syst.)fb, respectively, in agreement with Standard Model predictions. The measurements are used to constrain anomalous quartic gauge couplings by extracting 95% confdence level intervals on dimension-8 operators. A search for doubly charged Higgs bosons H±± that are produced in vector-boson fusion processes and decay into a same-sign W boson pair is performed. The largest deviation from the Standard Model occurs for an H±± mass near 450 GeV, with a global signifcance of 2.5 standard deviations

Combination of searches for heavy spin-1 resonances using 139 fb−1 of proton-proton collision data at s = 13 TeV with the ATLAS detector

A combination of searches for new heavy spin-1 resonances decaying into different pairings of W, Z, or Higgs bosons, as well as directly into leptons or quarks, is presented. The data sample used corresponds to 139 fb−1 of proton-proton collisions at = 13 TeV collected during 2015–2018 with the ATLAS detector at the CERN Large Hadron Collider. Analyses selecting quark pairs (qq, bb, , and tb) or third-generation leptons (τν and ττ) are included in this kind of combination for the first time. A simplified model predicting a spin-1 heavy vector-boson triplet is used. Cross-section limits are set at the 95% confidence level and are compared with predictions for the benchmark model. These limits are also expressed in terms of constraints on couplings of the heavy vector-boson triplet to quarks, leptons, and the Higgs boson. The complementarity of the various analyses increases the sensitivity to new physics, and the resulting constraints are stronger than those from any individual analysis considered. The data exclude a heavy vector-boson triplet with mass below 5.8 TeV in a weakly coupled scenario, below 4.4 TeV in a strongly coupled scenario, and up to 1.5 TeV in the case of production via vector-boson fusion