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Retrospective cohort study of statin therapy effect on resected colorectal liver metastases
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作者 Edward Alabraba Hussain Ibrahim +3 位作者 Adina Olaru Iain Cameron Dhanny Gomez Nottingham HPB Surgery Group 《World Journal of Gastrointestinal Surgery》 2020年第2期34-44,共11页
BACKGROUND Above and beyond their role in cardiovascular risk reduction,statins appear to have a chemopreventive role in some gastro-intestinal cancers.In the quest for new chemopreventive agents,some existing establi... BACKGROUND Above and beyond their role in cardiovascular risk reduction,statins appear to have a chemopreventive role in some gastro-intestinal cancers.In the quest for new chemopreventive agents,some existing established drugs such as statins have shown potential for re-purposing as chemoprevention.Probing existing drugs,whose pharmacodynamics are familiar,for novel beneficial effects offers a more cost-effective and less time-consuming strategy than establishing brand new drugs whose pharmacodynamic profile is unfamiliar.Observational studies show statins decrease the risk of developing colorectal cancer but there are no published studies exploring the potential impact of statins on carcinogenesis in colorectal liver metastases(CRLM).AIM To evaluate impact of statins on outcomes of CRLM resection,and secondarily to assess if statins influence CRLM histo-pathology.METHODS We conducted a retrospective cohort study of patients operated for CRLM over a 13-year period from 2005 to 2017.Patients were identified from a prospective database maintained in our Tertiary care hospital.All 586 patients included the study had undergone resection of CRLM following discussion at multidisclipinary team meeting,some patients requiring neoadjuvant chemotherapy to downstage CRLM prior to surgery.We analysed patient demographics,operative details,CRLM histopathology,Index of Deprivation,neutrophil-to-lymphocyte ratio,platelet-to-lymphocyte ratio and chemotherapy use in relation to clinical outcome.Statistics were performed using SPSS version 16.0;significance taken at 5%.RESULTS Liver resection for CRLM was undertaken in 586 patients at a median age of 68(range 19 to 88)years.Statin therapy was used by 181 patients.Median follow-up time was 23(range 12-96)mo and further colorectal cancer metastases developed in 267 patients.A total of 131 patients died.Multi-variate analysis identified 6 independent predictors of poorer disease-free survival:Synchronous presentation,multiple tumours,tumour size≥5 cm,moderate-severe steatosis,peri-neural invasion,and R1-resection margin.Poorer overall survival was significantly associated with neo-adjuvant chemotherapy,major hepatectomy,peri-neural invasion and R1-resection margin.Neither histo-pathological nor radiological traits of CRLM were affected by statins,and,there was no demonstrable effect of statin therapy on patient outcomes.CONCLUSION Statin therapy does not affect patient survival following liver resection for CRLM.We postulate the reason for this key finding is that statins do not modulate tumour biology of CRLM. 展开更多
关键词 Colorectal liver metastases STATIN Liver resection CHEMOPREVENTION tumour biology SURVIVAL
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