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- W4247829503 abstract "Abstract Background Oesophageal cancer is increasing in incidence and has a poor prognosis. Patients with potentially curable disease have a staging positron emission tomography (PET) examination combined with a computed tomography (CT) to assess loco-regional and distant disease. Although a small proportion of patients are suitable for attempted surgical resection, the majority will receive neo-adjuvant therapy (chemotherapy with or without radiotherapy) before their operation. The current regimen prescribes all patients to complete the neo-adjuvant treatment prior to surgery, but some patients will not experience a beneficial response. A repeat PET/CT after one cycle of neo-adjuvant treatment may identify early response or non-response and could alter subsequent management. The purpose of this systematic review and meta-analysis is to estimate the early and completion response rate defined by fluorodeoxyglucose (FDG)-PET, its diagnostic accuracy and explore associated factors. Methods Primary studies reporting response rates and diagnostic accuracy of PET/CT will be identified from MEDLINE, Embase, Cochrane Library, Cumulative Index of Nursing and Allied Health Literature (CINAHL), Scopus, Web of Science, International Clinical Trials Registry Platform (ICTRP) Search Portal and ClinicalTrials.gov databases. Peer-reviewed studies published from 2005 onwards will be included. Data will be extracted from selected studies and a meta-analysis using a random effects model will be attempted. Pooled early and completion response rates, and diagnostic accuracy (sensitivity and specificity), will be calculated from available data. Heterogeneity between studies, risk of bias and methodological quality will be assessed. Discussion This systematic review and meta-analysis will identify and synthesise evidence to determine early and completion response rates to neo-adjuvant treatment and the corresponding diagnostic accuracy of PET/CT. This strategy has the potential to identify patients that will not respond to the treatment and to offer this group an alternative pre-operative treatment or proceed directly to operation, thereby avoiding a delay in surgical resection and optimising patient outcomes." @default.
- W4247829503 created "2022-05-12" @default.
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- W4247829503 date "2020-03-11" @default.
- W4247829503 modified "2023-09-24" @default.
- W4247829503 title "Response rate and diagnostic accuracy of PET/CT during and after neo-adjuvant therapies in oesophageal adenocarcinoma: protocol for a systematic review" @default.
- W4247829503 doi "https://doi.org/10.21203/rs.3.rs-16782/v1" @default.
- W4247829503 hasPublicationYear "2020" @default.
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