Pattern of Change in Renal Function Following Radical Nephrectomy for Renal Cell Carcinoma

Radical nephrectomy (RN) is an independent risk factor for the development of chronic kidney disease (CKD) in those with renal cell carcinoma (RCC). We aimed to examine the pattern of change in post-operative renal function in patients who underwent RN for RCC over a 3 year period at our institution. We performed a retrospective review of histological and biochemical findings in patients undergoing RN for RCC over a 38 month period. Estimated glomerular filtration rate (eGFR) was recorded pre- and post-operatively and at follow-up. We analysed data on 131 patients (median follow-up 24 months). The proportion of patients with advanced CKD increased significantly at follow-up with 48 (85.7%) patients, classified as having stage 2 CKD pre-operatively, being re-classified as stage 3-5. Mean eGFR was significantly lower pre-operatively (76.6 mL/min/1.73 m2) compared to hospital discharge (61 mL/min/1.73 m2, p < 0.001) and follow-up (55.5 mL/min/1.73 m2, p < 0.001). Those with pT1 tumours sustained a significantly greater decline in eGFR compared to other stages. In conclusion, patients with pT1 a and pT1 b tumours sustain a disproportionate decline in renal function and may benefit the most from NSS.

The SOAR stroke score predicts hospital length of stay in acute stroke: an external validation study

AIMS

The objective of this study is to externally validate the SOAR stroke score (Stroke subtype, Oxfordshire Community Stroke Project Classification, Age and prestroke modified Rankin score) in predicting hospital length of stay (LOS) following an admission for acute stroke.

METHODS

We conducted a multi-centre observational study in eight National Health Service hospital trusts in the Anglia Stroke & Heart Clinical Network between September 2008 and April 2011. The usefulness of the SOAR stroke score in predicting hospital LOS in the acute settings was examined for all stroke and then stratified by discharge status (discharged alive or died during the admission).

RESULTS

A total of 3596 patients (mean age 77 years) with first-ever or recurrent stroke (92% ischaemic) were included. Increasing LOS was observed with increasing SOAR stroke score (p < 0.001 for both mean and median) and the SOAR stroke score of 0 had the shortest mean LOS (12 ± 20 days) while the SOAR stroke score of 6 had the longest mean LOS (26 ± 28 days). Among patients who were discharged alive, increasing SOAR stroke score had a significantly higher mean and median LOS (p < 0.001 for both mean and median) and the LOS peaked among patients with score value of 6 [mean (SD) 35 ± 31 days, median (IQR) 23 (14-48) days]. For patients who died as in-patient, there was no significant difference in mean or median LOS with increasing SOAR stroke score (p = 0.68 and p = 0.79, respectively).

CONCLUSION

This external validation study confirms the usefulness of the SOAR stroke score in predicting LOS in patients with acute stroke especially in those who are likely to survive to discharge. This provides a simple prognostic score useful for clinicians, patients and service providers.

Cost and value in medical education--what we can learn from the past

What lessons can be learned from the history of cost and value in medical education? First, the issue of cost and value in medical education has been around for a long time. Rising costs and an economic recession have made us focus on the subject more, but the issue has been just below the surface for over 200 years. A problem like this will not go away by itself - we must tackle it now. Second, the history of cost and value in medical education makes us look critically at who should pay. Should it be students, institutions or governments? We can see from the past that several different models have been tried; that all have their advantages and disadvantages; and that none are perfect. Third, looking at the past should make us realise that the issue of cost in medical education cannot be viewed in isolation. Medical educators throughout history have looked at how cost can affect selection for medical school, how costs can be related to benefits, and the effect of rising costs on career choices. Cost in medical education has always had far reaching consequences and implications. It probably always will. Looking at issues in medical education from the perspective of cost often makes them more stark and explicit - this in turn may help us to start to find solutions. In the future our solutions must be evidence based and must take account of cost.

Late outcomes in adults with coarctation of the aorta

AIMS

Previous cohort studies of patients with coarctation of the aorta (CoA) demonstrate reduced long-term survival. Improved surgical outcomes in children and evolution of adult congenital heart disease (ACHD) services have resulted in improved survival in patients with other CHDs. We hypothesise that for young adult patients with CoA long-term outcomes have improved in the contemporary era.

METHODS

151 patients (58% men) with simple CoA followed up at a tertiary ACHD service in Sydney, Australia, from 1993 to 2013 were included. We documented mortality and major morbidity such as the need for re-intervention for re-coarctation or aneurysms.

RESULTS

140 patients (mean age 35±15 years) underwent CoA repair at median age of 5 (IQR 0-10) years. Initial surgical strategy included end-to-end repair in 43, subclavian flap aortoplasty in 28 and patch aortoplasty in 31 patients (and was not documented in 28 cases). 6 patients had endovascular repair, 4 had interposition tube grafts and 11 were unrepaired. There were a total of seven deaths at a median age of 60 years. Actuarial survival was 98% at 40, 98% at 50 and 89% at 60 years of age. Re-coarctation occurred in 34% and descending aortic aneurysms were noted in 18%. Patients with end-to-end repair had lower rates of significant re-coarctation or descending aortic aneurysms (p=0.026 and <0.001, respectively). 66% had bicuspid aortic valve and 44% were hypertensive.

CONCLUSIONS

Patients with CoA who reach adolescence demonstrate very good long-term survival up to age 60 years. Long-term morbidity is common, however, related largely to aortic complications and late hypertension.

What does practice development (PD) offer mental health-care contexts? A comparative case study of PD methods and outcomes

Practice development (PD) in mental health nursing has been progressing over the last decade; however, the level and impact of PD activity in the field of mental health remains poorly understood outside localized project impact. More specific reporting and comparative analysis of PD outcomes will improve this situation. In response, this paper presents three case scenarios from work taking place in Australia and New Zealand, as working examples of how PD methodologies have been applied within mental health practice settings. Using a comparative framework that captures the contributing assumptions, practices, processes and conditions imperative to effective PD work within a mental health-care context, three case vignettes are reviewed. The critical question driving this paper is 'what mental health-care services does PD offer in terms of transformational change approaches and the promotion of effective workplace cultures?' Conditions considered necessary for successful PD initiatives within mental health contexts are explored such as how PD converges and diverges with mental health-related theories, plus where and how PD activity best integrates with the specific elements associated with mental health-care provision. The findings are further reviewed in line with reports of PD outcomes from other fields of health care.

A cautionary lesson on the use of targeted methods for EGFR mutation analysis: a case report

Epidermal growth factor receptor (EGFR) mutation analysis is recommended for lung cancer patients prior to the prescription of first-line EGFR tyrosine kinase inhibitors in order to predict response to treatment. There are many methods available to identify mutations in the EGFR gene; a large number of clinical laboratories use the therascreen EGFR RGQ PCR kit (Qiagen). We report a case where this kit detected an exon 19 deletion, predicting sensitivity to tyrosine kinase inhibitors (TKIs), which on further analysis was found to be a 2 bp indel (c.2239_2240delinsCC, p.(Leu747Pro)). Two of four published cases with this mutation were found to be associated with resistance to EGFR TKI. The sample was also tested using two other commercial kits, one of which indicated a deletion. This is a rare mutation making the erroneous detection of a deletion unlikely; however, it is important that clinical laboratories are aware of the potential failings of two commercial kits for EGFR mutation analysis.