Search

To assess the composition by gender of Australian clinical practice guideline development panels; to explore guideline development-related factors that influence the composition of panels.Survey of clinical guidelines published in Australia during 2010-2020 that observed the 2016 NHMRC Standards for Guidelines, identified (June 2021) in the NHMRC Clinical Practice Guideline Portal or by searching the Guideline International Network guidelines library, the Trip medical database, and PubMed. The gender of contributors to guideline development was inferred from gendered titles (guideline documents) or pronouns (online biographies).The overall proportion of guideline panel members - the guideline contributors who formally considered evidence and formulated recommendations (ie, guideline panel chairs and members) - who were women.Of 406 eligible guidelines, 335 listed the names of people who contributed to their development (82%). Of 7472 named contributors (including 511 guideline panel chairs [6.8%] and 5039 guideline panel members [67.4%]), 3514 were men (47.0%), 3345 were women (44.8%), and gender could not be determined for 612 (8.2%). A total of 215 guideline panel chairs were women (42.1%), 280 were men (54.8%); 2566 guideline panel members were men (50.9%), 2071 were women (41.1%). The proportion of female guideline panel members was smaller than 40% for 179 guidelines (53%) and larger than 60% for 71 guidelines (21%). The median guideline proportion of female panel members was smaller than 50% for all but two years (2017, 2018).The representation of women in health leadership roles in Australia does not reflect their level of participation in the health care workforce. In particular, clinical guideline development bodies should develop transparent policies for increasing the participation of women in guideline development panels.

Aim To determine the causes of early neonatal death and the avoidable factors associated with these deaths among women participating in a cluster-randomised crossover trial in Papua New Guinea. Methods Early neonatal deaths were identified by retrospective chart review of the Women and Newborn Trial of Antenatal Interventions and Management study participants between July 2017 and January 2020. Causes of death and avoidable factors were identified using the Perinatal Problem Identification Program system. Results There were 35 early neonatal deaths among 2499 livebirths (14 per 1000 births). Fifty-seven percent (20/35) of deaths occurred on the first day of life. Idiopathic preterm birth was the leading obstetric cause of perinatal death (29%; 10/35). Extreme multi-organ immaturity (23%; 8/35) and hypoxic ischaemic encephalopathy (17%; 6/35) were the most common final causes of neonatal death. Forty-six avoidable factors were identified among 26 deaths, including delays in care-seeking, insufficient resources at health facilities, poor intrapartum care and immediate care of the newborn, including neonatal resuscitation. Conclusion In this study, potentially preventable causes and avoidable factors were identified in the majority of early neonatal deaths. Addressing these factors will require health system strengthening, particularly the upskilling of primary level health staff, as well as targeted health education of women and the community.

Objective To undertake a retrospective perinatal death audit and assessment of avoidable factors associated with stillbirths among a cohort of women in two provinces in Papua New Guinea. Methods We used data from an ongoing cluster-randomized crossover trial in 10 sites among 4600 women in Papua New Guinea (from 2017 to date). The overarching aim is to improve birth outcomes. All stillbirths from July 2017 to January 2020 were identified. The Perinatal Problem Identification Program was used to analyze each stillbirth and review associated avoidable factors. Results There were 59 stillbirths among 2558 births (23 per 1000 births); 68% (40/59) were classified "fresh" and 32% as "macerated". Perinatal cause of death was identified for 63% (37/59): 30% (11/37) were due to intrapartum asphyxia and traumatic breech birth and 19% (7/37) were the result of pre-eclampsia. At least one avoidable factor was identified for 95% (56/59) of stillbirths. Patient-associated factors included lack of response to reduced fetal movements and delay in seeking care during labor. Health personnel-associated factors included poor intrapartum care, late diagnosis of breech presentation, and prolonged second stage with no intervention. Conclusion Factors associated with stillbirths in this setting could be avoided through a package of interventions at both the community and health-facility levels.

AimTo determine the causes of early neonatal death and the avoidable factors associated with these deaths among women participating in a cluster-randomised crossover trial in Papua New Guinea.MethodsEarly neonatal deaths were identified by retrospective chart review of the Women and Newborn Trial of Antenatal Interventions and Management study participants between July 2017 and January 2020. Causes of death and avoidable factors were identified using the Perinatal Problem Identification Program system.ResultsThere were 35 early neonatal deaths among 2499 livebirths (14 per 1000 births). Fifty-seven percent (20/35) of deaths occurred on the first day of life. Idiopathic preterm birth was the leading obstetric cause of perinatal death (29%; 10/35). Extreme multi-organ immaturity (23%; 8/35) and hypoxic ischaemic encephalopathy (17%; 6/35) were the most common final causes of neonatal death. Forty-six avoidable factors were identified among 26 deaths, including delays in care-seeking, insufficient resources at health facilities, poor intrapartum care and immediate care of the newborn, including neonatal resuscitation.ConclusionIn this study, potentially preventable causes and avoidable factors were identified in the majority of early neonatal deaths. Addressing these factors will require health system strengthening, particularly the upskilling of primary level health staff, as well as targeted health education of women and the community.

Background: Limb ischemia is a major complication associated with peripheral veno‐arterial extracorporeal membrane oxygenation (VA ECMO). The high velocity jet from arterial cannulae can cause “sandblasting” injuries to the arterial endothelium, with the potential risk of distal embolization and end organ damage. Aim: The aim of this study was to identify, for a range of clinically relevant VA ECMO cannulae and flow rates, any regions of peak flow velocity on the aortic wall which may predispose to vascular injury, and any regions of low velocity flow which may predispose to thrombus formation. Methods: A silicone model of the aortic and iliac vessels was sourced and the right external iliac artery was cannulated. Cannulae ranged from 15 – 21 Fr in size. Simulated steady state ECMO flow rates were instituted using a magnetically levitated pump (CentriMag pump). Adaptive particle image velocimetry was performed for each cannula at 3, 3.5, 4 and 4.5 L/min. Results: For all cannulae, in both horizontal and vertical side hole orientations, the peak velocity on the aortic wall ranged from 0.3 m/s ‐ 0.45 m/s, and the regions of lowest velocity flow were 0.05 m/s. The magnitude of peak velocity flow on the aortic wall was not different between a single pair versus multiple pairs of side holes. Maximum velocity flow on the aortic wall occurred earlier at a lower pump flow rate in the vertical orientation of distal side holes compared to a horizontal position. The presence of multiple paired side holes was associated with fewer low velocity flow regions, and some retrograde flow, in the distal abdominal aorta compared to cannulae with a single pair of side holes. Conclusion: From this in vitro visualization study, the selection of a cannula design with multiple versus single pairs of side holes did not change the magnitude of peak velocity flow delivered to the vessel wall. Cannulae with multiple side holes were associated with fewer regions of low velocity flow in the distal abdominal aorta. Further in vivo studies, and ideally clinical data would be required to assess any correlation of peak velocity flows with incidence of vascular injury, and any low velocity flow regions with incidence of thrombosis.

Objective To determine the feasibility and acceptability of providing clean birth kits (CBKs) containing misoprostol for self-administration in a rural setting in Papua New Guinea. Methods A prospective intervention study was conducted between April 8, 2013, and October 24, 2014. Eligible participants were women in the third trimester of pregnancy who attended a prenatal clinic in Unggai Bena. Participants received individual instruction and were then given a CBK containing 600 μg misoprostol tablets for self-administration following an unsupervised birth if they could demonstrate their understanding of correct use of items in the CBK. Data regarding the use and acceptability of the CBK and misoprostol were collected during postpartum follow-up. Results Among 200 participants, 106 (53.0%) had an unsupervised birth, and 99 (93.4%) of these women used the CBK. All would use the CBK again and would recommend it to others. Among these 99 women, misoprostol was self-administered by 98 (99.0%), all of whom would take the drug again and would recommend it to others. Conclusion The findings strengthen the case for community-based use of misoprostol to prevent postpartum hemorrhage in remote communities. Large-scale interventions should be planned to further evaluate impact and acceptability.

Prevention of parent-to-child transmission (PPTCT) of HIV is a highly complex package of interventions, which spans services in both maternal and child health programmes. In Papua New Guinea (PNG), a commitment to ensure that all pregnant women and their partners have access to the full range of PPTCT interventions exists; however, efforts to increase access and utilisation of PPTCT remain far from optimal. The aim of this paper is to examine health care worker (HCW) perception of health system factors impacting on the performance of PPTCT programmes. Sixteen interviews were undertaken with HCWs involved in the PPTCT programme. Application of the WHO 6 building blocks of a health system was applied, and further thematic analysis was conducted on the data with assistance from the analysis software NVivo. Broken equipment, problems with access to medication and supplies, and poorly supported workforce were reported as barriers for implementing a successful PPTCT programme. The absence of central coordination of this complex, multistaged programme was also recognised as a key issue. The study findings highlight an important need for investment in appropriately trained and supported HCWs and integration of services at each stage of the PPTCT programme. Lessons from the PPTCT experience in PNG may inform policy discussions and considerations in other similar contexts.

Purpose To show that the use of a multi-velocity encoding (VENC) 4D-flow approach offers significant improvements in the characterization of complex flow in the aorta. Four-dimensional flow magnetic resonance imaging (MRI) (4D-flow) can be used to measure complex flow patterns and dynamics in the heart and major vessels. The quality of the information derived from these measures is dependent on the accuracy of the vector field, which is limited by the vector-to-noise ratio. Materials and Methods A 4D-flow protocol involving three different VENC values of 150, 60, and 20 cm/s was performed on six control subjects and nine patients with type-B chronic aortic dissection at 3T MRI. Data were processed using a single VENC value (150 cm/s) or using a fused dataset that selected the lowest appropriate VENC for each voxel. Performance was analyzed by measuring spatial vector angular correlation, magnitude correlation, temporal vector conservation, and “real-world” streamline tracing performance. Results The multi-VENC approach provided a 31% improvement in spatial and 53% improvement in temporal precision of velocity vector measurements during the mid-late diastolic period, where 99% of the flow vectors in the normal aorta are below 20 cm/s. In low-flow conditions this resulted in practical improvements of greater than 50% in pathline tracking and streamline tracing quantified by streamline curvature measurements. Conclusion A multi-VENC 4D-flow approach provides accurate vector data across normal physiological velocities observed in the aorta, dramatically improving outputs such as pathline tracking, streamline estimation, and further advanced analyses.J. Magn. Reson. Imaging 2015.

Background Transcatheter aortic valve implantation (TAVI) has been developed to treat symptomatic aortic stenosis in patients deemed too high risk for open-heart surgery. To address this complex population, an interdisciplinary heart team approach was proposed. Aim Present the short- and mid-term outcomes of the first 100 patients in the Royal Prince Alfred Hospital multidisciplinary TAVI programme. Methods Single-centre registry. Baseline and procedural data were prospectively recorded. Outcomes were recorded according to Valve Academic Research Consortium – version 2 guidelines. Results All patients underwent a comprehensive interdisciplinary pre-procedural evaluation. Sixty-eight transfemoral and 32 transapical implantations were performed. Mean age was 82 (±8.9) years old with an average logistic EuroSCORE of 33. Although 13 procedures had major complications, there was no intraprocedural mortality. During the first month, 9% of patients were re-admitted due to heart failure and 13% had a permanent pacemaker implanted. A 3% 30-day and 8% follow-up (mean 17 months) mortalities were recorded. While no significant differences in the rate of complications were found between the first and second half of the experience, all cases of mortality within 30 days (n = 3) occurred in the initial half. Sustained haemodynamic results were obtained with TAVI (immediate mean aortic valve gradient reduction from 47 to 9 mmHg; 1-year echocardiographic gradient 9.9 mmHg, with no moderate or severe aortic regurgitation). Conclusion Excellent results can be achieved with TAVI in very high-risk patients at an Australian institution. A comprehensive evaluation based on a heart team can overcome most of the difficulties imposed by this challenging population.

Background Aortic arch replacement is a potentially high-risk operation and in the re-operative setting has been found to be a risk factor for poor outcome, yet there is a dearth of published data specifically on this topic. The aim of the study was to review our unit's outcomes in this re-operative setting. Method Data were collated for all patients who underwent aortic arch replacement surgery after previous cardiac surgery from January 1988 to November 2011. The patients were divided based primarily on elective versus non-elective and also early (≤2005) and late (≥2006) series. Results Twenty-seven eligible patients (22 male; median age: 53.0 years; elective: 14, non-elective: 13) were identified. There was a mean period of 14.5 years between the first operation and the subsequent aortic arch replacement. The overall 30-day mortality rate was 22.2% – 0% elective and 46.2% non-elective (P = 0.004). Overall permanent neurological dysfunction was 21.7% – 28.6% elective and 11.1% non-elective (P = 0.463). There were 11 early-series patients and 16 late-series patients. For early-series patients, 90.9% were non-elective versus 18.8% in the late-series patients. The 30-day mortality rate was 54.5% early series versus 0% late series. Conclusion Aortic arch replacement is high risk in the re-operative setting. These risks are even greater for non-elective procedures. This highlights the need for aggressive first-time surgery to reduce re-operative procedures and good long-term follow-up programmes to allow elective procedures if required.

Patterns of myocardial revascularization have changed significantly over the past decade. There has been a relative decrease of coronary artery bypass grafting (CABG) compared with percutaneous coronary intervention (PCI) and some patients are undergoing PCI for coronary lesions traditionally reserved for CABG. The mid- to long-term results of several trials comparing PCI with CABG have recently been published. For three-vessel disease, CABG is superior to PCI, with lower rates of major adverse cardiac events. PCI may be equivalent to CABG for three-vessel disease in the lowest disease complexity tercile (SYNTAX score

Merkel cell polyomavirus (MCPyV) was identified originally in association with a rare but aggressive skin cancer, Merkel cell carcinoma. The virus has since been found in the respiratory tract of some patients with respiratory disease. However, the role of MCPyV in the causation of respiratory disease has not been established. To determine the prevalence of MCPyV in 305 respiratory samples from immunocompetent and immunocompromised patients and evaluate their contribution to respiratory diseases, specimens were screened for MCPyV using single, multiplex, or real‐time PCR; co‐infection with other viruses was examined. Of the 305 samples tested, 10 (3.27%) were positive for MCPyV. The virus was found in two groups of patients: in 6 (2%) nasopharyngeal aspirate samples from children aged 26 days to 7 months who were immunocompetent; and in 4 (1.3%) of nasopharyngeal aspirate samples taken from patients aged 41 to 69 years who were severely immunosuppressed from leukemia or transplant therapy. Both groups had upper or lower respiratory tract infection. Co‐infections with other viruses were found in 30% of the MCPyV positive samples. The data present a pattern of infection similar to that seen with the polyomaviruses JC and BK in which the virus is acquired during childhood, probably by the respiratory route. The viruses then establish latency and become reactivated in the event of immunosuppression. J. Med. Virol. 83:2220–2224, 2011. © 2011 Wiley Periodicals, Inc.

The present study investigates the impact of student diversity on performance of first-year undergraduate accounting students. The paper is motivated by (i) increasing diversity amongst the accounting student cohort because of the trend to internationalise education services in industrialised countries; and (ii) inconsistent and inconclusive prior evidence on the determinants of accounting student performance. The major contribution of the present paper is to provide a theoretical framework from the published educational literature that can explain much of the variation in the findings of prior studies. We employ this framework to develop and test several propositions in relation to students' prior content and metacognitive knowledge. The results indicate students studying on-campus significantly outperform students studying by distance education. On average, international students studying on-campus perform better than domestic students (studying either on- or off-campus), with international students studying off-campus performing worst of all. Prior high school accounting, tertiary entrance score and motivation (reflected by both major of study and tutorial attendance) also influence student performance.

Since its discovery, human parvovirus B19 has been linked with a broad spectrum of clinical syndromes. An aetiological role for the virus has been confirmed in erythema infectiosum, transient aplastic crisis, persistent infection manifesting as pure red cell aplasia in immunocompromised persons, non-immune hydrops fetalis and arthritis. Less commonly recognised, but receiving increasing attention recently, are the neurological manifestations, a variety of which have been described in patients with either clinically diagnosed or laboratory confirmed B19 infection. The purpose of this review is to summarise present knowledge of B19, its known and potential pathogenic mechanisms and its association with human diseases, particularly those with neurological manifestations. The outcome of the review supports an aetiological role of the virus in neurological disease. However, the pathogenesis remains unknown and elucidating this is a priority. Copyright 2003 John Wiley & Sons, Ltd.

This paper analyses the recently issued accounting standard prAASB 1016 and its predecessor ED 71 in the light of the historical development of equity accounting in Australia and overseas. Empirical research shows that equity accounting was not universally adopted before being banned and that, given a voluntary choice of accounting method, firms are more likely to adopt equity accounting when they hold material investments in associated companies, when the investments in associates are unlisted and when there is a greater level of interdependency between the investor and investee, as evidenced by the existence of cross-guarantees or the level of non-capital transactions which take place. There is no empirical evidence supporting the degree of influence as an important consideration in the adoption decision.

A single specimen of an epoxy/amine thermoset-glass fiber composite was examined, using a freely oscillating torsion pendulum operating at ∼ 1 Hz, for different conversions (as measured by T g ) from T g0 = 0°C to T gx = 184°C during cooling and heating temperature scans. T g was increased for successive pairs of scans by heating to higher and higher temperatures. The data were used in two ways:(i) vs. temperature for a fixed conversion to obtain transitions, modulus, and mechanical loss data, and (ii) by crossplotting to obtain isothermal values of the mechanical parameters vs. conversion (T g ). Hysteresis between cooling and subsequent heating data was observed in temperature scans of essentially ungelled material (T g < 70°C) and was attributed to spontaneous microcracking. Hysteresis was analyzed in terms of the following three parameters: T crack , the temperature corresponding to the onset of microcracking on cooling; T heal, the temperature at which the specimen heals on subsequent heating; and the difference between isothermal cooling and heating data vs. conversion. Results were incorporated into a more general conversion-temperature-property diagram which serves as a framework for relating transitions (relaxations) to macroscopic behavior.

Introduction : Various forms of penile foreskin cutting are practised in Papua New Guinea. In the context of an ecological association observed between HIV infection and the dorsal longitudinal foreskin cut, we undertook an investigation of this relationship at the individual level. Methods : We conducted a cross-sectional study among men attending voluntary confidential HIV counselling and testing clinics. Following informed consent, participants had a face-to-face interview and an examination to categorize foreskin status. HIV testing was conducted on site and relevant specimens collected for laboratory-based Herpes simplex type-2 (HSV-2), syphilis, Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), and Trichomonas vaginalis (TV) testing. Results : Overall, 1073 men were enrolled: 646 (60.2%) were uncut; 339 (31.6%) had a full dorsal longitudinal cut; 72 (6.7%) a partial dorsal longitudinal cut; and 14 (1.3%) were circumcised. Overall, the prevalence of HIV was 12.3%; HSV-2, 33.6%; active syphilis, 12.1%; CT, 13.4%; NG, 14.1%; and TV 7.6%. Compared with uncut men, men with a full dorsal longitudinal cut were significantly less likely to have HIV (adjusted odds ratio [adjOR] 0.25, 95%CI: 0.12, 0.51); HSV-2 (adjOR 0.60, 95%CI: 0.41, 0.87); or active syphilis (adjOR 0.55, 95%CI: 0.31, 0.96). This apparent protective effect was restricted to men cut prior to sexual debut. There was no difference between cut and uncut men for CT, NG or TV. Conclusions : In this large cross-sectional study, men with a dorsal longitudinal foreskin cut were significantly less likely to have HIV, HSV-2 and syphilis compared with uncut men, despite still having a complete (albeit morphologically altered) foreskin. The protective effect of the dorsal cut suggests that the mechanism by which male circumcision works is not simply due to the removal of the inner foreskin and its more easily accessible HIV target cells. Exposure of the penile glans and inner foreskin appear to be key mechanisms by which male circumcision confers protection. Further research in this unique setting will help improve our understanding of the fundamental immunohistologic mechanisms by which male circumcision provides protection, and may lead to new biomedical prevention strategies at the mucosal level. Keywords male genital cutting; superincision; Pacific (Published: 3 April 2017) Vallely AJ et al. Journal of the International AIDS Society 2017, 20 :21358 http://www.jiasociety.org/index.php/jias/article/view/21358 | http://dx.doi.org/10.7448/IAS.20.01/21358