The evolution of mandatory continuing professional development (CPD) for diagnostic radiographers in Ireland - A longitudinal study.

INTRODUCTION: This longitudinal research study reports on aspects of CPD immediately before and in the years following the simultaneous introduction of state registration and mandatory CPD for diagnostic radiographers in Ireland. METHODS: Surveys captured information through closed and open questions distributed nationally across various hospital types in hard copy and online formats. Opinion was gathered over 8-years at three time points, prior to the introduction of mandated changes, post-introduction at the end of the first audit cycle, and as society was emerging from a period of pandemic. RESULTS: Responses were received across age and grade ranges with response rates in keeping with previous surveys. The overall importance with which radiographers held CPD decreased over time, and while small changes were seen, the narrow focus of what radiographers considered CPD had stayed the same, with attendance-based activities remaining the most popular. Respondents indicated that their enthusiasm for undertaking CPD and willingness to undertake CPD outside of working hours had also decreased, with the perceived primary barrier to CPD shifting from funding to time. CONCLUSIONS: An appetite to undertake CPD amongst the majority is evident; however, addressing issues such as decreasing importance levels and willingness to use personal time for CPD is crucial. While the perceived cost of CPD has lessened as a barrier, lack of time for CPD is now a principal concern. Further research is recommended to explore the broader impacts of time pressures and optimises CPD for radiographers. IMPLICATIONS FOR PRACTICE: Findings highlight the need for collaborative engagement and support to optimise CPD opportunities for all radiographers in the future.

Recruitment and retention of radiography clinical practice educators.

INTRODUCTION: Clinical Practice Educators (CPEs) play a vital role in radiography education, fostering the development of students' clinical competence and creating positive learning experiences. In recent years, there has been a high turnover and difficulties recruiting radiography CPEs in Ireland. This is the first study to explore issues surrounding recruitment and retention of radiography CPEs. METHOD: A cross-sectional, mixed-method study was conducted to gain a better understanding of the issues surrounding recruitment and retention of radiography CPEs. Current and former CPEs affiliated with undergraduate radiography training in Ireland were recruited. CPEs completed an online questionnaire detailing demographics and career background. Online semi-structured focus groups were conducted with current CPEs and interviews with former CPEs. RESULTS: Nineteen current CPEs completed the questionnaire and participated in focus groups (95% response rate). Ten CPEs who had resigned within the last five years were interviewed. The main motivators for CPEs were an interest in teaching, inspiration from role models, personal learning goals and the appeal of part-time employment. Job satisfaction was influenced by efficacy in the role, professional growth, autonomy, and relationships with stakeholders. The main disincentives were the CPE grade not being commensurate with work involved, lack of protected time and lack of support from colleagues. A variety of reasons for resignation were provided, many of which related to grading of the CPE post and lack of career progression opportunities in the role. CONCLUSION: The findings outline the key motivators for radiography CPEs and disincentives relative to recruitment and retention of radiography CPEs in Ireland. IMPLICATIONS FOR PRACTICE: By understanding the disincentives relative to CPE recruitment and retention, along with the motivators, employers can devise initiatives that reduce turnover and increase CPE retention.

Supporting radiography clinical placements in Ireland during the COVID-19 pandemic: The practice educators perspective.

INTRODUCTION: The COVID-19 pandemic has significantly impacted healthcare services and the clinical learning environment. Several studies have investigated radiography students' experiences of clinical placement during the pandemic; however, few have investigated the Clinical Practice Educator's (CPEs) perspective. CPEs play a pivotal role in supporting clinical education. METHOD: A qualitative study was conducted using a purposeful sample of twenty-two CPEs, each working in a different Irish hospital. Four semi-structured focus groups were used to gather data. To maintain reasonable homogeneity, CPEs who were new to the role (n = 8) were assigned a separate focus group from experienced CPEs (n = 14). Inductive thematic analysis was applied. RESULTS: CPEs experienced role expansion, particularly in managerial and administrative aspects of the role. They described arranging COVID-19 vaccinations locally for radiography students and the complexities of student rostering during the pandemic. CPEs perceived the pandemic to have impacted students' emotional wellbeing with 'high anxiety levels' and 'loneliness' being reported. They also perceived issues with clinical readiness and the student transition to clinical practice. Many challenges were faced by CPEs including arranging clinical recovery time for numerous students when sites were already at full capacity, fewer learning opportunities due to decreased patient throughput and range of imaging examinations, social distancing constraints, resistance from staff to student placements, and a shortage of staff for student supervision. Flexibility, communication, and multi-level support helped CPEs to fulfil their role. CONCLUSION: The results provide insight into how CPEs supported radiography clinical placements during the pandemic and into the challenges faced by CPEs in their role. CPEs supported student placement through multi-level communication, teamwork, flexibility, and student advocacy. IMPLICATIONS FOR PRACTICE: This will aid understanding of the support mechanisms needed by CPEs to provide quality clinical placements.

The introduction of mandatory CPD for newly state registered diagnostic radiographers: An Irish perspective.

INTRODUCTION: Irish diagnostic radiography has undergone significant change with the dual introduction of state registration and mandatory Continuing Professional Development (CPD) in October 2015. We aimed to investigate motivators and barriers around CPD participation, mechanisms of CPD delivery and confidence of radiographers in using e-learning. METHODS: A questionnaire distributed nationally during this period captured Radiographer opinion through the use of closed and open questions. The questionnaire was distributed in hard copy and online formats depending on site preference. RESULTS: 71% of centres participated, rendering 453 responses in total from a possible 1222 respondents employed in those sites at the time of the survey. A varied range of ages and post qualification experience were represented. Respondents indicated use of several CPD options with the majority considering CPD to be important, very important or critical. Social media as a mechanism of CPD delivery was considered acceptable by 48%, while online learning elicited responses ranging from not confident to absolutely confident. Top motivators for CPD activity included interest, developing new knowledge and competency. Principal barriers included funding, time allocation and location issues. CONCLUSION: This study identified Radiographer desire to undertake CPD and the need for developing online CPD offerings. An overall positive perception towards CPD was noted however barriers were identified which require specific redress strategies.

Optimal exposure parameters for digital radiography of the infant skull: a pilot study.

AIM: To determine optimal exposure parameters when performing digital skull radiographs in infants with suspected non-accidental injury (NAI). METHOD: Anteroposterior and lateral post-mortem skull radiographs of six consecutive infants with suspected NAI were made at six exposure levels for each projection. Entrance surface doses ranged from 75-351 microGy. Exposures were made with a Fuji 5000R computed radiography system onto a standard resolution imaging plate. In three patients exposures were repeated using a high-resolution imaging plate. Hard copy images with an edge-enhancement factor of 0.5 were produced. Six observers assessed and scored the radiographs from 1=poor to 5=excellent for visualization of five criteria. The criteria scored included outer table of skull vault, inner table of skull vault, suture margins, vascular markings and soft tissues of the scalp. Radiographs were then ranked in order of overall image quality. Film density and sensitivity values were recorded. Local research committee approval was obtained. RESULTS: Current parameters give an average entrance surface dose of 253 microGy and 246 microGy for anteroposterior and lateral radiographs, respectively. The study demonstrated no perceived improvement in image quality above an entrance surface dose of 200 microGy (80% of current dose) or by the use of a high-resolution imaging plate. CONCLUSION: The potential exists to reduce radiation exposure in infants. A study has commenced to determine the effects of dose reduction on diagnostic accuracy in suspected NAI.

Spodoptera frugiperda pheromone lures to avoid nontarget captures of Leucania phragmatidicola.

We confirmed that commercial three- or four-component Spodoptera frugiperda (J.E. Smith) pheromone lures had a high nontarget capture rate for Leucania phragmatidicola Guenée, which compromised monitoring efforts in the northeastern United States. We compiled taxonomic features to distinguish L. phragmatidicola from S. frugiperda, and we compared five new lures. S. frugiperda catch specificity was improved by removing (Z)-11-hexadecen-1-ol acetate (Z11-16:Ac), which attracted L. phragmatidicola. Four lures tracked late-season S. frugiperda immigration, but two of these lures also tracked a bivoltine L. phragmatidicola flight with a second generation coincident with S. frugiperda immigration, and one lure attracted the first, but not the second, generation of L. phragmatidicola. In both low- and high-moth flight conditions, two-component lures had low L. phragmatidicola captures (0.5-1.4%), and although lures with more pheromonal components captured more S. frugiperda, they also had a high percentage of capture of L. phragmatidicola (38-48%). We conclude that although two-component lures captured fewer S. frugiperda, their similar temporal pattern, along with the lower level of L. phragmatidicola, makes them useful for development for monitoring programs in the northeastern United States.

A juvenile sheep model for the long-term evaluation of stentless bioprostheses implanted as aortic root replacements.

BACKGROUND AND AIM OF THE STUDY: Orthotopic valve replacement in large animals is an important component of the preclinical assessment of bioprosthetic valves. To provide the most useful preclinical information, the development of models that parallel clinical practice patterns is essential. Therefore, we sought to develop a technically feasible and reproducible model for chronic evaluation of stentless bioprosthetic aortic valves implanted as aortic root replacements in juvenile sheep. METHODS: Juvenile domestic sheep (mean age 21+/-2.28 weeks; range: 17-26 weeks) underwent aortic root replacement using standard cardiopulmonary bypass (CPB) and surgical techniques. Animals were implanted with 19 mm (n = 21), 21 mm (n = 18) or 23 mm (n = 4) bioprostheses from two different manufacturers, and followed for 150 days. Animals surviving at least 150 days were considered long-term survivors; those which died prior to postoperative day (POD) 31 were considered operative deaths. RESULTS: Forty-three animals underwent aortic root replacement. The mean CPB time was 91+/-20 min (range: 62-149 min); mean cross-clamp time was 63+/-13 min (range: 39-95 min). Thirty-five animals (81%) survived the first 30 days of the study period. Five deaths occurred at POD 0 due to anastomotic complications. One death occurred each on POD 3, 6, and 26 as a result of prosthesis size mismatching, thromboembolic complications, and endocarditis, respectively. There were five late deaths. Twenty animals survived the minimum 150-day study period, and 12 were sacrificed at 183+/-17 days. Six animals remain alive at 151+/-0.98 days, and one animal died each on POD 184 and 190. The remaining 10 animals are not yet 150 days from their operation. Currently, all are well at 102+/-34 days (range: 33-140) days. CONCLUSION: These data suggest that long-term evaluation of stentless aortic bioprostheses implanted as aortic root replacements can be accomplished using juvenile sheep.

Development and evaluation of a swine model to assess the preclinical safety of mechanical heart valves.

BACKGROUND AND AIM OF THE STUDY: The current standard of in vitro and in vivo preclinical heart valve testing has recently been questioned because of its failure to reveal the thrombogenic potential of the Medtronic Parallel prosthetic valve. The aim of this study was to develop a swine model for the in vivo preclinical evaluation of mechanical heart valves, and to assess the ability of this model to identify mechanical heart valve design features that result in valve-related thrombosis. METHODS: Twenty-two swine underwent mitral valve replacement (MVR) using three different bileaflet mechanical valve designs (St Jude Medical, CarboMedics, Medtronic Parallel). Each animal was placed in an anticoagulation protocol (group I, INR 3.0-3.5; group II, INR 2.0-2.5; group III, no anticoagulation) and followed for up to 20 weeks. Terminal studies were performed on all animals surviving for more than 30 days. RESULTS: Twenty-one animals survived the immediate postoperative period. Four of six group I animals died from hemorrhagic (large wound hematoma; hemopericardium) complications early in the study. In the two long-term (61 and 89 days) survivors, INRs of 3.0 to 3.5 were never achieved (61-day survivor, mean INR 2.0 +/- 1.03; range: 0.8-5.4; 89-day survivor, mean INR 1.92 +/- 1.34; range: 1.0-7.9). Pathological analysis of explants from group I survivors revealed minimally obstructive fibrous sheathing on the inflow orifice without restriction of bileaflet motion (61 and 89 days), and two large perivalvular defects (61 days). Six of seven group II animals died from early hemorrhagic complications (hemopericardium) (mean INR 2.32 +/- 1.84; range: 0.8-8.2). Vegetations resulting in obstruction of both sides of the valve orifice and restriction of bileaflet motion were observed in a group II survivor (mean INR 2.33 +/- 1.58; range: 0.9-7.0). Group III animals (n = 8) survived for a mean of 106 +/- 60 days (range: 1-177 days). In group III, fibrous sheathing was present on all explanted valves and organized thrombi in six valves; orifice obstruction (seven valves) and restriction of bileaflet motion (three valves) were also observed. CONCLUSION: The use of MVR in swine as a preclinical model to evaluate the safety and performance of mechanical heart valves is limited by: (i) difficulty in maintaining safe levels of anticoagulation with warfarin, resulting in a high incidence of hemorrhagic complications; (ii) marked fibrous sheath formation and associated thrombosis; and (iii) an increased incidence of perivalvular defects, believed to result from normal somatic growth occurring in young swine.

Use of epicardial electrocardiograms for detecting cardiac allograft rejection.

Since the advent of cyclosporin A surface electrocardiograms have been unreliable for diagnosing cardiac allograft rejection. Although several noninvasive methods have been proposed, none have been sufficiently accurate to be considered for clinical use. We have studied the use of the QRS complex amplitude, the unipolar peak-to-peak amplitude, recorded from intramyocardial electrodes for detecting rejection. Ten adult mongrel dogs underwent placement of intramyocardial electrodes on each ventricle. After stabilization of signals the hearts were transplanted heterotopically into unmatched recipients receiving cyclosporin A, azathioprine and methylprednisolone. Endomyocardial biopsies were performed after stabilization of unipolar peak-to-peak amplitude, twice weekly thereafter, and when unipolar peak-to-peak amplitude fell significantly. This detected 13 of 14 episodes of rejection. There was one false-positive and one false-negative result. The false-negative study became positive the following day. Thus, analysis of unipolar peak-to-peak amplitude detected all episodes of rejection in a clinically relevant time frame and was able to detect mild forms of rejection and multiple episodes of rejection in the same heart even in the presence of therapeutic levels of cyclosporin A.