Audit committees and internal auditors: Using LMX for relationship analysis

The purpose of this paper is to provide a theoretically-informed meaning for the ‘quality of the audit committee-internal auditor relationship’ construct and to provide a new instrument for its measure. Leader-Member Exchange Theory (LMX theory) is widely accepted in the management communication and management literature as one which can be used to explain the development of a leader-member relationship and the quality of such a relationship. The analysis will be grounded in the LMX literature, and in understanding of the relationship between the audit committee and internal auditors. This paper is a contribution to the literature as such application of LMX is a newly theorised initiative to enable researchers to improve our understandings of this important corporate relationship. The output of this analysis can be used for research which evaluates the quality of the audit committee-internal auditor relationship (AC-IA relationship)

Functional imaging of head and neck squamous cell carcinoma with diffusion-weighted MRI and FDG PET/CT: quantitative analysis of ADC and SUV

Purpose: Head and neck squamous cell carcinoma (HNSCC) may cause a decreased apparent diffusion coefficient (ADC) on diffusion-weighted magnetic resonance imaging (DW MRI) and an increased standardized uptake value (SUV) on fluorodeoxyglucose (FDG) positron emission tomography (PET/CT). We analysed the reproducibility of ADC and SUV measurements in HNSCC and evaluated whether these biomarkers are correlated or independent. Methods: This retrospective analysis of DW MRI and FDG PET/CT data series included 34 HNSCC in 33 consecutive patients. Two experienced readers measured tumour ADC and SUV values independently. Statistical comparison and correlation with histopathology was done. Intra- and inter-observer agreement for ADC and SUV measurements was assessed. Results: Intraclass correlation coefficient (ICC) analysis showed almost perfect reproducibility (>0.90) for ADCmean, ADCmin, SUVmax and SUVmean values for intra-observer and inter-observer agreement. Mean ADCmean and ADCmin in HNSCC were 1.05 ± 0.34 × 10−3 mm2/s and 0.65 ± 0.29 × 10−3 mm2/s, respectively. Mean SUVmean and mean SUVmax were 7.61 ± 3.87 and 12.8 ± 5.0, respectively. Although statistically not significant, a trend towards higher SUV and lower ADC was observed with increasing tumour dedifferentiation. Pearson's correlation analysis showed no significant correlation between ADC and SUV measurements (r −0.103, −0.051; p 0.552, 0.777). Conclusion: Our data suggest that ADC and SUV values are reproducible and independent biomarkers in HNSC

Aligning Concerns in Telecare:Three Concepts to Guide the Design of Patient-Centred E-Health

The design of patient-centred e-health services embodies an inherent tension between the concerns of clinicians and those of patients. Clinicians’ concerns are related to professional issues to do with diagnosing and curing disease in accordance with accepted medical standards. In contrast, patients’ concerns typically relate to personal experience and quality of life issues. It is about their identity, their hopes, their fears and their need to maintain a meaningful life. This divergence of concerns presents a fundamental challenge for designers of patient-centred e-health services. We explore this challenge in the context of chronic illness and telecare. Based on insights from medical phenomenology as well as our own experience with designing an e-health service for patients with chronic heart disease, we emphasise the importance – and difficulty – of aligning the concerns of patients and clinicians. To deal with this, we propose a set of concepts for analysing concerns related to the design of e-health services: A concern is (1) meaningful if it is relevant and makes sense to both patients and clinicians, (2) actionable if clinicians or patients – at least in principle – are able to take appropriate action to deal with it, and (3) feasible if it is easy and convenient to do so within the organisational and social context. We conclude with a call for a more participatory and iterative approach to the design of patient-centred e-health services

A National Survey of Undergraduate Clinical Education in Internal Medicine

BACKGROUND: In the present milieu of rapid innovation in undergraduate medical education at US medical schools, the current structure and composition of clinical education in Internal Medicine (IM) is not clear. OBJECTIVE: To describe the current composition of undergraduate clinical education structure in IM. DESIGN: National annual Clerkship Directors in Internal Medicine (CDIM) cross-sectional survey. PARTICIPANTS: One hundred twenty-nine clerkship directors at all Liaison Committee on Medical Education accredited US medical schools with CDIM membership as of September 1, 2017. MAIN MEASURES: IM core clerkship and post-core clerkship structure descriptions, including duration, educational models, inpatient experiences, ambulatory experiences, and requirements. KEY RESULTS: The survey response rate was 83% (107/ 129). The majority of schools utilized one core IM clerkshipmodel (67%) and continued to use a traditional block model for a majority of their students (84%). Overall 26% employed a Longitudinal Integrated Clerkship model and 14% employed a shared block model for some students. The mean inpatient duration was 7.0 ± 1.7 weeks (range 3–11 weeks) and 94% of clerkships stipulated that students spend some inpatient time on general medicine. IM-specific ambulatory experiences were not required for students in 65% of IM core clerkship models. Overall 75% of schools did not require an advanced IM clinical experience after the core clerkship; however, 66% of schools reported a high percentage of students (> 40%) electing to take an IM sub-internship. About half of schools (48%) did not require overnight call or night float during the clinical IM sub-internship. CONCLUSIONS: Although there are diverse core IM clerkship models, the majority of IM core clerkships are still traditional block models. The mean inpatient duration is 7 weeks and 65% of IM core clerkship models did not require IM-specific ambulatory education

Spectrum of cardiac disease in maternity in a low-resource cohort in South Africa

Background: Lack of evidence-based data on the spectrum of cardiovascular disease (CVD) in pregnancy or in the postpartum period, as well as on maternal and fetal outcome, provides challenges for treating physicians, particularly in areas of low resources. The objectives of this study were to investigate the spectrum of disease, mode of presentation and maternal and fetal outcome of patients referred to a dedicated Cardiac Disease and Maternity Clinic (CDM). Methods: The prospective cohort study was conducted at a single tertiary care centre in South Africa. Two hundred and twenty-five women presenting with CVD in pregnancy, or within 6 months postpartum, were studied over a period of 2 years. Clinical assessment, echocardiography and laboratory tests were performed at baseline and follow-up visits. Prepartum, peripartum and postpartum complications were grouped into cardiac, neonatal and obstetric events. Results: Ethnicity was black African (45%), mixed ethnicity (32%), white (15%), Indian/others (8%) and 12% were HIV positive. Of the 225 consecutive women (mean age 28.8±6.4), 196 (86.7%) presented prepartum and 73 in modified WHO class I. The 152 women presenting in a higher risk group (modified WHO class II-IV) were offered close follow-up at the CDM clinic and were diagnosed with congenital heart disease (32%, 15 operated previously), valvular heart disease (26%, 15 operated previously), cardiomyopathy (27%) and other (15%). Women presenting with symptoms of CVD or heart failure postpartum (n=30) presented in a higher New York Heart Association, had higher heart rates (p42 days postpartum. Perinatal death occurred in 1/152 (0.7%) - translating to a perinatal mortality rate of 7/1000 live births. Conclusions: Disease patterns were markedly different to that seen in the developed world. However, joint obstetric-cardiac care in the low-resource cohort was associated with excellent survival outcome rates of pregnant mothers (even with complex diseases) and their offspring and was similar to that seen in the western world. Mortality typically occurred in the postpartum period, beyond the standard date of recording maternal death

Prostate cancer treated with brachytherapy; an exploratory study of dose-dependent biomarkers and quality of life

BACKGROUND: Low-dose-rate permanent prostate brachytherapy (PPB) is an attractive treatment option for patients with localised prostate cancer with excellent outcomes. As standard CT-based post-implant dosimetry often correlates poorly with late treatment-related toxicity, this exploratory (proof of concept) study was conducted to investigate correlations between radiation − induced DNA damage biomarker levels, and acute and late bowel, urinary, and sexual toxicity. METHODS: Twelve patients treated with (125)I PPB monotherapy (145Gy) for prostate cancer were included in this prospective study. Post-implant CT based dosimetry assessed the minimum dose encompassing 90% (D(90%)) of the whole prostate volume (global), sub-regions of the prostate (12 sectors) and the near maximum doses (D(0.1cc), D(2cc)) for the rectum and bladder. Six blood samples were collected from each patient; pre-treatment, 1 h (h), 4 h, 24 h post-implant, at 4 weeks (w) and at 3 months (m). DNA double strand breaks were investigated by staining the blood samples with immunofluorescence antibodies to γH2AX and 53BP1 proteins (γH2AX/53BP1). Patient self-scored quality of life from the Expanded Prostate Cancer Index Composite (EPIC) were obtained at baseline, 1 m, 3 m, 6 m, 9 m, 1 year (y), 2y and 3y post-treatment. Spearman’s correlation coefficients were used to evaluate correlations between temporal changes in γH2AX/53BP1, dose and toxicity. RESULTS: The minimum follow up was 2 years. Population mean prostate D(90%) was 144.6 ± 12.1 Gy and rectal near maximum dose D(0.1cc) = 153.0 ± 30.8 Gy and D(2cc) = 62.7 ± 12.1 Gy and for the bladder D(0.1cc) = 123.1 ± 27.0 Gy and D(2cc) = 70.9 ± 11.9 Gy. Changes in EPIC scores from baseline showed high positive correlation between acute toxicity and late toxicity for both urinary and bowel symptoms. Increased production of γH2AX/53BP1 at 24 h relative to baseline positively correlated with late bowel symptoms. Overall, no correlations were observed between dose metrics (prostate global or sector doses) and γH2AX/53BP1 foci counts. CONCLUSIONS: Our results show that a prompt increase in γH2AX/53BP1foci at 24 h post-implant relative to baseline may be a useful measure to assess elevated risk of late RT − related toxicities for PPB patients. A subsequent investigation recruiting a larger cohort of patients is warranted to verify our findings. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s13014-017-0792-1) contains supplementary material, which is available to authorized users

Investigating the effect of ribavirin treatment on genetic mutations in Crimean-Congo haemorrhagic fever virus (CCHFV) through next-generation sequencing.

Crimean-Congo haemorrhagic fever (CCHF) is the most widespread tick-borne viral haemorrhagic fever affecting humans, and yet a licensed drug against the virus (CCHFV) is still not available. While several studies have suggested the efficacy of ribavirin against CCHFV, current literature remains inconclusive. In this study, we have utilised next-generation sequencing to investigate the mutagenic effect of ribavirin on the CCHFV genome during clinical disease. Samples collected from CCHF patients receiving ribavirin treatment or supportive care only at Sivas Cumhuriyet University Hospital, Turkey, were analysed. By comparing the frequency of mutations in each group, we found little evidence of an overall mutagenic effect. This suggests that ribavirin, administered at the acute stages of CCHFV infection (at the World Health Organization-recommended dose) is unable to induce lethal mutagenesis that would cause an extinction event in the CCHFV population and reduce viremia