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The centre of treatment is the surgical resection of primary solid tumours. But even if the tumour can be removed without microscopic residual cells, local recurrences and distant metastases occur and determine the patient\u2019s fate. During the operation, tumour cells are shed from the primary tumour and released into the circulation. These circulating tumour cells might play an important role in the formation of new tumour sites. Therefore, a functional innate and adaptive immune system is essential, especially in this perioperative period. Anaesthesia influences consciousness and pain perception and interacts directly with the immune system and tumour cells.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>Review of the current literature concerning intra- and postoperative anaesthetic decisions and tumour progression.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>There are beneficial aspects for patient survival associated with total intravenous anaesthesia, the use of regional anaesthetics and the avoidance of allogeneic red blood cell transfusions. Alternatives such as irradiated intraoperative blood salvage and preoperative iron supplementation may be advantageous in cases where transfusions are limited or not wanted. The immunosuppressive properties of opioids are theoretical, but strong evidence to avoid them does not exist. The application of nonsteroidal anti-inflammatory drugs and postoperative nausea and vomiting prophylaxis do not impair the patient\u2019s survival and may even have a positive effect on tumour regression.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>Anaesthesia does play an important part in the perioperative period in order to improve the cancer-related outcome. Further research is necessary to make more concrete recommendations.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00423-021-02078-z","type":"journal-article","created":{"date-parts":[[2021,2,1]],"date-time":"2021-02-01T14:03:28Z","timestamp":1612188208000},"page":"1283-1294","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Anaesthesia as an influence in tumour progression"],"prefix":"10.1007","volume":"406","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5143-216X","authenticated-orcid":false,"given":"Jadie","family":"Pl\u00fccker","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naita M.","family":"Wirsik","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alina S.","family":"Ritter","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas","family":"Schmidt","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Markus A.","family":"Weigand","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,2,1]]},"reference":[{"key":"2078_CR1","doi-asserted-by":"publisher","first-page":"46","DOI":"10.1016\/j.ejphar.2018.04.009","volume":"831","author":"S Jiang","year":"2018","unstructured":"Jiang S, Liu Y, Huang L, Zhang F, Kang R (2018) Effects of propofol on cancer development and chemotherapy: potential mechanisms. 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