Lung cancer in the emergency department

Role of SOX Protein Groups F and H in Lung Cancer Progression

Simple Summary

The expression of SOX proteins has been demonstrated in many tissues at various stages of embryogenesis, where they play the role of transcription factors. The SOX18 protein (along with SOX7 and SOX17) belongs to the SOXF group and is mainly involved in the development of the cardiovascular system, where its expression was found in the endothelium. SOX18 expression was also demonstrated in neoplastic lines of gastric, pancreatic and colon adenocarcinomas. The prognostic role of SOX30 expression has only been studied in lung adenocarcinomas, where a low expression of this factor in the stromal tumor was associated with a worse prognosis for patients. Because of the complexity of non-small-cell lung cancer (NSCLC) development, the role of the SOX proteins in this malignancy is still not fully understood. Many recently published papers show that SOX family protein members play a crucial role in the progression of NSCLC.

Abstract

The SOX family proteins are proved to play a crucial role in the development of the lymphatic ducts and the cardiovascular system. Moreover, an increased expression level of the SOX18 protein has been found in many malignances, such as melanoma, stomach, pancreatic breast and lung cancers. Another SOX family protein, the SOX30 transcription factor, is responsible for the development of male germ cells. Additionally, recent studies have shown its proapoptotic character in non-small cell lung cancer cells. Our preliminary studies showed a disparity in the amount of mRNA of the SOX18 gene relative to the amount of protein. This is why our attention has been focused on microRNA (miRNA) molecules, which could regulate the SOX18 gene transcript level. Recent data point to the fact that, in practically all types of cancer, hundreds of genes exhibit an abnormal methylation, covering around 5–10% of the thousands of CpG islands present in the promoter sequences, which in normal cells should not be methylated from the moment the embryo finishes its development. It has been demonstrated that in non-small-cell lung cancer (NSCLC) cases there is a large heterogeneity of the methylation process. The role of the SOX18 and SOX30 expression in non-small-cell lung cancers (NSCLCs) is not yet fully understood. However, if we take into account previous reports, these proteins may be important factors in the development and progression of these malignancies.

Does Increasing Home Care Nursing Reduce Emergency Department Visits at the End of Life? A Population-Based Cohort Study of Cancer Decedents

CONTEXT

Despite being commonplace in health care systems, little research has described home care nursing's effectiveness to reduce acute care use at the end of life.

OBJECTIVES

To examine the temporal association between home care nursing rate on emergency department (ED) visit rate in the subsequent week during the last six months of life.

METHODS

We conducted a retrospective cohort study of end-of-life cancer decedents in Ontario, Canada, from 2004 to 2009 by linking administrative databases. We examined the association between home care nursing rate of one week with the ED rate in the subsequent week closer to death, controlling for covariates and repeated measures among decedents. Nursing was dichotomized into standard and end-of-life care intent.

RESULTS

Our cohort included 54,576 decedents who used home care nursing services in the last six months before death, where 85% had an ED visit and 68% received end-of-life home care nursing. Patients receiving end-of-life nursing at any week had a significantly reduced ED rate in the subsequent week of 31% (relative rate [RR] 0.69; 95% confidence interval [CI] 0.68, 0.71) compared with standard nursing. In the last month of life, receiving end-of-life nursing and standard nursing rate of more than five hours/week was associated with a decreased ED rate of 41% (RR 0.59, 95% CI 0.58, 0.61) and 32% (RR 0.68, 95% CI 0.66, 0.70), respectively, compared with standard nursing of one hour/week.

CONCLUSION

Our study showed a temporal association between receiving end-of-life nursing in a given week during the last six months of life, and of more standard nursing in the last month of life, with a reduced ED rate in the subsequent week.

What is the incidence of patients with palliative care needs presenting to the Emergency Department? a critical review

BACKGROUND

Given the context of ageing populations globally, there are a growing number of patients with chronic conditions, some of whom are in the final stages of their disease trajectory, presenting to Emergency Departments.

AIM

The aim was to estimate the incidence of patients with palliative care needs presenting to the department.

METHODS

Three databases (MEDLINE, CINAHL and Embase) were systematically searched up to August 2012. The reference lists of included articles were searched as well as Google and Google Scholar. Only studies in English were included. Two reviewers independently reviewed studies at the abstract and full-body stages. A critical review using systematic methods was undertaken as statistical analysis could not be done because of a lack of information.

RESULTS

Only 10 of 1427 identified records met the inclusion criteria. Different definitions of palliative care were evident. One article provided an incidence density for patients with non-small cell lung cancer, and we calculated the mean presentations to be 52.5 per 100 person-months. Two articles focussed on patients known to palliative care services; we estimated that 2.5 in 1000 Emergency Department visits were made by these patients. The review demonstrated that the studies were so different it was not possible to compare the data.

CONCLUSION

There is an absence of evidence regarding the incidence of patients with palliative care needs presenting to the Emergency Department. Further research needs to be undertaken in this area to ensure both clinicians and policymakers have sufficient information for service provision.