Gastro-oesophageal cancer: facts, myths and surgical folk lore.
ABSTRACT The prognosis of patients with gastric and oesophageal cancers remains poor but increased knowledge of the factors involved in carcinogenesis and a better understanding of the disease process has led to strategies to improve outcomes. These are discussed under the following headings: (1) Prevention of the disease, (2) early detection of tumours, (3) treatment selection and (4) treatment. The likely impact of developments in each of these areas is considered in relation to population-based data from the Scottish Audit of Gastro-Oesophageal Cancer (SAGOC). Although there are a number of novel developments in the management of gastric and oesophageal cancer it is only by the conduct of controlled trials that the value of these will be determined. More immediate improvements in patient care may be derived from rationalisation of existing resources to ensure that all patients benefit from early diagnosis, the appropriate selection and delivery of treatment. One model of care, which may ensure this is the development of managed clinical networks, would maintain the involvement of all units in the management and treatment of upper GI cancers to a level that is possible with the facilities available. At the same time the patients requiring more specialised treatment would benefit from established referral networks
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ABSTRACT: The incidence of oesophageal adenocarcinoma is increasing worldwide but survival remains poor. Neoadjuvant chemotherapy can improve survival, but prognostic and predictive biomarkers are required. This study built upon preclinical approaches to identify prognostic plasma proteomic markers in oesophageal cancer. Plasma samples collected before and during the treatment of oesophageal cancer and non-cancer controls were analysed by surface-enhanced laser desorption/ionisation time-of-flight (SELDI-TOF) mass spectroscopy (MS). Protein peaks were identified by MS in tryptic digests of purified fractions. Associations between peak intensities obtained in the spectra and clinical endpoints (survival, disease-free survival) were tested by univariate (Fisher's exact test) and multivariate analysis (binary logistic regression). Plasma protein peaks were identified that differed significantly (P<0.05, ANOVA) between the oesophageal cancer and control groups at baseline. Three peaks, confirmed as apolipoprotein A-I, serum amyloid A and transthyretin, in baseline (pre-treatment) samples were associated by univariate and multivariate analysis with disease-free survival and overall survival. Plasma proteins can be detected prior to treatment for oesophageal cancer that are associated with outcome and merit testing as prognostic and predictive markers of response to guide chemotherapy in oesophageal cancer.British Journal of Cancer 02/2012; 106(5):955-61. · 5.08 Impact Factor