Publications by authors named "Pienaar C"

Aims: Primary aim was to review severe acute respiratory infections (SARI) hospitalisations caused by respiratory syncytial virus (RSV) in children aged < 2 years in paediatric hospitals in Australia. Secondary aims included RSV subtyping, assessing RSV seasonality and contributing to the World Health Organisation's RSV surveillance programme.

Methods: We prospectively reviewed the medical records of children (< 2 years of age) with a confirmed SARI who were admitted to one of four major Australian paediatric hospitals and had a respiratory sample analysed by Polymerase Chain Reaction (PCR).

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  • The study investigates how lipid mediators, which play a role in inflammation, change in response to resistance exercise in recreational runners compared to less-active individuals.
  • It measures the expression of specific genes (PTGES2 and ALOX15) and various lipid mediators in blood after participants performed strength exercises at a set intensity.
  • Results show that recreational runners exhibited significant changes in both inflammatory response and resolution markers over time, while less-active controls did not display these changes, suggesting that regular moderate exercise may enhance the body's ability to manage inflammation.
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  • Poor iron levels negatively impact both physical and cognitive performance in adolescents, particularly in those from low- and middle-income countries.
  • A study of 178 South African adolescents found that many had low hemoglobin and iron deficiency, highlighting the need for better iron status.
  • The research showed significant positive correlations between iron status and physical fitness components, suggesting that higher iron levels are linked to better explosive power and cardiorespiratory fitness in these adolescents.
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  • The study examines the validity of two fitness tests, the 5-m multistage shuttle test (5-m MST) and the Yo-Yo Intermittent recovery level 1 test (Yo-Yo IR1), in predicting match performance in field hockey.
  • Nineteen female players participated in both tests before nine matches, revealing that the 5-m MST correlated moderately with match performance, while the Yo-Yo IR1 showed weaker correlations.
  • Overall, the tests had low direct validity in reflecting match performance, indicating a need for coaches to use more reliable fitness assessments tailored to field hockey.
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Objectives: The main aims of this study were to examine whether there are positional- and between-quarter differences in the physical load of elite female field hockey players during international matches.

Methods: Twenty-three international female field hockey players were equipped with Global Positioning Systems devices, while competing over nine international matches.

Results: Players covered a mean relative distance, relative player load, and distance covered in the form of low-, moderate-, and high intensity activities of 107.

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Animal tolerance towards humans can be a key factor facilitating wildlife-human coexistence, yet traits predicting its direction and magnitude across tropical animals are poorly known. Using 10,249 observations for 842 bird species inhabiting open tropical ecosystems in Africa, South America, and Australia, we find that avian tolerance towards humans was lower (i.e.

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Background: The impact of hospital building design on patients, families and nurses related to nursing care interactions is not well understood. This study reports a pre-post intervention study to understand the effects of the move to a new children's hospital in Perth, Australia, on nurse workflow activities and on patient, family, and nurse experiences.

Methods: We used a pre-post explanatory sequential design involving observation of nurse work tasks; measurement of the Practice Environment Scale and Nurse Work Index; weekly surveys of nurse, patient and family experiences; and nurse focus groups and interviews with patients and families.

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Background: is the number one cause of hospital-acquired diarrhoea. Accurate diagnosis of is of utmost importance as it guides patient management and infection control practices. Studies evaluating the performance of commercially available nucleic acid amplification tests (NAATs) versus algorithms are lacking in resource-limited settings.

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Background: Infective endocarditis (IE) in South Africa is associated with significant morbidity and mortality, despite occurring in younger patients with fewer co-morbidities. Possible contributors include the high rates of blood culture negative endocarditis, high rates of mechanical valve replacement and the lack of inter-disciplinary coordination during management.

Methods: The Tygerberg Endocarditis Cohort (TEC) study prospectively enrolled patients with IE between November 2019 and April 2021.

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Background:  Handgrip strength (HGS) serves as a proxy for the functional ability and its association with body composition (BC) and physical activity (PA) in South African adults are less clear.

Aim:  We investigated the relationships between PA, body composition and HGS amongst adults.

Setting:  Rural and urban population from North West Province, South Africa.

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Neurological conditions produce considerable disease burden. To describe quality of life in patients with neurological conditions and informal caregivers receiving postdischarge generic community neurological nursing services, and caregiver burden. A descriptive cross-sectional design was used with researchers administering the WHOQOL-BREF Australian Version questionnaire and Zarit Burden Interview.

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Background: Historically, infective endocarditis (IE) in South Africa (SA) was associated with the viridans group of streptococci affecting patients with underlying rheumatic heart disease (RHD). A changing IE bacteriological profile raises the question of whether the profile of underlying valvular abnormality has changed.

Objectives: To investigate the prevalence of underlying structural valve abnormalities and their aetiologies associated with IE in SA, and describe the typical imaging findings.

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Background: The diagnosis of infective endocarditis (IE) is based on the modified Duke/European Society of Cardiology (ESC) 2015 clinical criteria. The sensitivity of the criteria is unknown in South Africa, but high rates of blood culture negative endocarditis (BCNIE), coupled with a change in the clinical features of IE, may limit the sensitivity.

Methods: The Tygerberg Endocarditis Cohort study prospectively enrolled patients with IE between November 2019 and June 2021.

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Background: Blood culture negative infective endocarditis (BCNIE) poses both a diagnostic and therapeutic challenge. High rates of BCNIE reported in South Africa have been attributed to antibiotic use prior to blood culture sampling.

Objectives: To assess the impact of a systematic approach to organism detection and identify the causes of infective endocarditis (IE), in particular causes of BCNIE.

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Background: Total or near-total lip defects poses a serious challenge to a reconstructive surgeon with static procedures not providing desired functional and aesthetic outcomes. The dynamic lip reconstructive methods using functional muscles have become a current issue in recent years showing admirable results. This study present 3 cases of successful total and near-total lip reconstruction are presented using vastus lateralis muscle.

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is an established member of the normal flora of the respiratory tract. This organism is an emerging cause of respiratory tract infection, as well as infection of the skin and skin structures, urinary tract and other sterile sites. The syndrome of exudative pharyngitis is a diagnostic challenge of particular relevance in recent times as this organism can be confused with in the clinical setting and in the laboratory.

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Unlabelled: The impact of child health research can be far reaching; affecting children's immediate health, their adult health, the health of future generations and the economic wellbeing of countries. Consumer and community involvement is increasingly recognised as key to successful research recruitment. Systematic approaches to research recruitment include research registries or research contact lists.

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Previous reports have highlighted the high prevalence of blood culture negative endocarditis (BCNE) in South Africa. The Tygerberg Endocarditis Cohort (TEC) study is an ongoing prospective cohort study of patients with confirmed or suspected IE presenting to Tygerberg Academic Hospital, Cape Town, South Africa. Current analysis includes patients that presented between November 2019 and August 2020.

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Limited information is available on the morphological characteristics of adult female footballers, therefore the aim of this article was to examine if there are position-specific differences in the morphological characteristics of sub-elite female football players and to establish normative standards for this level of female football players. The morphological features of 101 sub-elite female football players (age: 21.8 ± 2.

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Patient experience surveys have a user focus and measure the quality of person-centered health care for hospital inpatients and consumers of community health services, providing a governance process to evaluate the quality of care and to action improvement. Experience of care has been described as effective communication, respect and dignity, and emotional support. Measurement criteria for these domains are not standardized, leading to inconsistent reporting of patient experience.

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Introduction: The Western Cape Provincial Health Data Centre (PHDC) consolidates person-level clinical data across government services, leveraging sustained investments in patient registration systems, a unique identifier, and maturation of administrative and clinical digital health systems.

Objectives: The PHDC supports clinical care directly through tools for clinicians which integrate patient data or identify patients in need of interventions, and indirectly through supporting operational and epidemiological analyses.

Methods: The PHDC is housed entirely within government.

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Background: Falls remain an important problem for older people in hospital, particularly those with high falls risk. This mixed methods study investigated the association between multiple bed moves and falls during hospitalisation of older patients identified as a fall risk, as well as safety of ward environments, and staff person-centredness and level of inter-professional collaboration.

Methods: Patients aged ≥70 years, admitted through the Emergency Department (ED) and identified at high fall risk, who were admitted to four target medical wards, were followed until discharge or transfer to a non-study ward.

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Study Objective: We compare buddy taping with plaster casting for uncomplicated fifth metacarpal (boxer's) fractures. We hypothesize buddy taping will give superior functional outcomes at 12 weeks, defined as a 10-point difference on the Shortened Disabilities of the Arm, Shoulder and Hand (quickDASH) score.

Methods: This randomized controlled trial included patients aged 18 to 70 years, with uncomplicated boxer's fractures in 2 hospitals in Queensland, Australia.

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Eukarya have been discovered in the deep subsurface at several locations in South Africa, but how organisms reach the subsurface remains unknown. We studied river-subsurface fissure water systems and identified Eukarya from a river that are genetically identical for 18S rDNA. To further confirm that these are identical species one metazoan species recovered from the overlying river interbred successfully with specimen recovered from an underlying mine at -1.

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Broodryk, A, Pienaar, C, Edwards, D, and Sparks, M. Effects of a soccer tournament on the psychohormonal states of collegiate female players. J Strength Cond Res 35(7): 1873-1884, 2021-A gap exists in the literature concerning the connection between soccer players' hormonal and psychological responses when playing a tournament, or even a match, and its outcome (victory or defeat).

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