Intraoperative versus Early Postoperative Intraperitoneal Chemotherapy after Cytoreduction for Colorectal Peritoneal Carcinomatosis: an Experimental Study

Background Perioperative intraperitoneal chemotherapy is used as an adjunct to cytoreductive surgery (CS) for peritoneal carcinomatosis (PC) in order to prolong survival. Worldwide, hyperthermic intraperitoneal chemotherapy (HIPEC), early postoperative intraperitoneal chemotherapy (EPIC), and combin...

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Veröffentlicht in:Annals of surgical oncology 2012-07, Vol.19 (Suppl 3), p.475-482
Hauptverfasser: Klaver, Yvonne L. B., Hendriks, Thijs, Lomme, Roger M. L. M., Rutten, Harm J. T., Bleichrodt, Robert P., de Hingh, Ignace H. J. T.
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container_end_page 482
container_issue Suppl 3
container_start_page 475
container_title Annals of surgical oncology
container_volume 19
creator Klaver, Yvonne L. B.
Hendriks, Thijs
Lomme, Roger M. L. M.
Rutten, Harm J. T.
Bleichrodt, Robert P.
de Hingh, Ignace H. J. T.
description Background Perioperative intraperitoneal chemotherapy is used as an adjunct to cytoreductive surgery (CS) for peritoneal carcinomatosis (PC) in order to prolong survival. Worldwide, hyperthermic intraperitoneal chemotherapy (HIPEC), early postoperative intraperitoneal chemotherapy (EPIC), and combinations of the two are used. It remains unclear which regimen is most beneficial. Methods The rat colon carcinoma cell line CC-531 was injected into the peritoneal cavity of 80 WAG/Rij rats to induce PC. Animals were randomized into four treatment groups ( n  = 20): CS only, CS followed by HIPEC (mitomycin 35 mg/m 2 at 41.5°C), CS followed by EPIC during 5 days (i.p. injection of mitomycin on day 1 and 5-fluorouracil on days 2–5), and CS followed by HIPEC plus EPIC. Primary outcome was survival. Results In rats treated with CS only, median survival was 53 days (95% confidence interval (CI) 49–57 days). In rats treated with CS followed by HIPEC, survival was significantly ( P  = 0.001) increased (median survival 94 days, 95% CI 51–137 days). In the group treated with EPIC after CS, 12 out of 20 rats were still alive at the end of the experiment ( P  
doi_str_mv 10.1245/s10434-011-1984-9
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B. ; Hendriks, Thijs ; Lomme, Roger M. L. M. ; Rutten, Harm J. T. ; Bleichrodt, Robert P. ; de Hingh, Ignace H. J. T.</creator><creatorcontrib>Klaver, Yvonne L. B. ; Hendriks, Thijs ; Lomme, Roger M. L. M. ; Rutten, Harm J. T. ; Bleichrodt, Robert P. ; de Hingh, Ignace H. J. T.</creatorcontrib><description>Background Perioperative intraperitoneal chemotherapy is used as an adjunct to cytoreductive surgery (CS) for peritoneal carcinomatosis (PC) in order to prolong survival. Worldwide, hyperthermic intraperitoneal chemotherapy (HIPEC), early postoperative intraperitoneal chemotherapy (EPIC), and combinations of the two are used. It remains unclear which regimen is most beneficial. Methods The rat colon carcinoma cell line CC-531 was injected into the peritoneal cavity of 80 WAG/Rij rats to induce PC. Animals were randomized into four treatment groups ( n  = 20): CS only, CS followed by HIPEC (mitomycin 35 mg/m 2 at 41.5°C), CS followed by EPIC during 5 days (i.p. injection of mitomycin on day 1 and 5-fluorouracil on days 2–5), and CS followed by HIPEC plus EPIC. Primary outcome was survival. Results In rats treated with CS only, median survival was 53 days (95% confidence interval (CI) 49–57 days). In rats treated with CS followed by HIPEC, survival was significantly ( P  = 0.001) increased (median survival 94 days, 95% CI 51–137 days). In the group treated with EPIC after CS, 12 out of 20 rats were still alive at the end of the experiment ( P  &lt; 0.001 as compared with CS only). In the group receiving both treatments, 11 rats died of toxicity, and therefore this group was not included in the survival analysis. Conclusions Both EPIC and HIPEC were effective in prolonging survival. The beneficial effect of EPIC on survival seemed to be more pronounced than that of HIPEC. Further research is indicated to evaluate and compare the possible benefits and adverse effects associated with both treatments.</description><identifier>ISSN: 1068-9265</identifier><identifier>EISSN: 1534-4681</identifier><identifier>DOI: 10.1245/s10434-011-1984-9</identifier><identifier>PMID: 21837528</identifier><language>eng</language><publisher>New York: Springer-Verlag</publisher><subject>Animals ; Antineoplastic Combined Chemotherapy Protocols - administration &amp; dosage ; Antineoplastic Combined Chemotherapy Protocols - adverse effects ; Carcinoma - drug therapy ; Carcinoma - secondary ; Carcinoma - therapy ; Chemotherapy, Adjuvant ; Colonic Neoplasms - pathology ; Confidence Intervals ; Fluorouracil - administration &amp; dosage ; Hyperthermia, Induced ; Intraoperative Care ; Kaplan-Meier Estimate ; Male ; Medicine ; Medicine &amp; Public Health ; Mitomycin - administration &amp; dosage ; Oncology ; Peritoneal Neoplasms - drug therapy ; Peritoneal Neoplasms - secondary ; Peritoneal Neoplasms - therapy ; Postoperative Care ; Proportional Hazards Models ; Rats ; Surgery ; Surgical Oncology ; Translational Research and Biomarkers</subject><ispartof>Annals of surgical oncology, 2012-07, Vol.19 (Suppl 3), p.475-482</ispartof><rights>The Author(s) 2011</rights><rights>Society of Surgical Oncology 2012</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c415t-c74fdc67905c147cf147f18b1a901186471d55fac6627c3981ece3033964765d3</citedby><cites>FETCH-LOGICAL-c415t-c74fdc67905c147cf147f18b1a901186471d55fac6627c3981ece3033964765d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1245/s10434-011-1984-9$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1245/s10434-011-1984-9$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21837528$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Klaver, Yvonne L. B.</creatorcontrib><creatorcontrib>Hendriks, Thijs</creatorcontrib><creatorcontrib>Lomme, Roger M. L. M.</creatorcontrib><creatorcontrib>Rutten, Harm J. T.</creatorcontrib><creatorcontrib>Bleichrodt, Robert P.</creatorcontrib><creatorcontrib>de Hingh, Ignace H. J. T.</creatorcontrib><title>Intraoperative versus Early Postoperative Intraperitoneal Chemotherapy after Cytoreduction for Colorectal Peritoneal Carcinomatosis: an Experimental Study</title><title>Annals of surgical oncology</title><addtitle>Ann Surg Oncol</addtitle><addtitle>Ann Surg Oncol</addtitle><description>Background Perioperative intraperitoneal chemotherapy is used as an adjunct to cytoreductive surgery (CS) for peritoneal carcinomatosis (PC) in order to prolong survival. Worldwide, hyperthermic intraperitoneal chemotherapy (HIPEC), early postoperative intraperitoneal chemotherapy (EPIC), and combinations of the two are used. It remains unclear which regimen is most beneficial. Methods The rat colon carcinoma cell line CC-531 was injected into the peritoneal cavity of 80 WAG/Rij rats to induce PC. Animals were randomized into four treatment groups ( n  = 20): CS only, CS followed by HIPEC (mitomycin 35 mg/m 2 at 41.5°C), CS followed by EPIC during 5 days (i.p. injection of mitomycin on day 1 and 5-fluorouracil on days 2–5), and CS followed by HIPEC plus EPIC. Primary outcome was survival. Results In rats treated with CS only, median survival was 53 days (95% confidence interval (CI) 49–57 days). In rats treated with CS followed by HIPEC, survival was significantly ( P  = 0.001) increased (median survival 94 days, 95% CI 51–137 days). In the group treated with EPIC after CS, 12 out of 20 rats were still alive at the end of the experiment ( P  &lt; 0.001 as compared with CS only). In the group receiving both treatments, 11 rats died of toxicity, and therefore this group was not included in the survival analysis. 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B.</au><au>Hendriks, Thijs</au><au>Lomme, Roger M. L. M.</au><au>Rutten, Harm J. T.</au><au>Bleichrodt, Robert P.</au><au>de Hingh, Ignace H. J. T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Intraoperative versus Early Postoperative Intraperitoneal Chemotherapy after Cytoreduction for Colorectal Peritoneal Carcinomatosis: an Experimental Study</atitle><jtitle>Annals of surgical oncology</jtitle><stitle>Ann Surg Oncol</stitle><addtitle>Ann Surg Oncol</addtitle><date>2012-07-01</date><risdate>2012</risdate><volume>19</volume><issue>Suppl 3</issue><spage>475</spage><epage>482</epage><pages>475-482</pages><issn>1068-9265</issn><eissn>1534-4681</eissn><abstract>Background Perioperative intraperitoneal chemotherapy is used as an adjunct to cytoreductive surgery (CS) for peritoneal carcinomatosis (PC) in order to prolong survival. Worldwide, hyperthermic intraperitoneal chemotherapy (HIPEC), early postoperative intraperitoneal chemotherapy (EPIC), and combinations of the two are used. It remains unclear which regimen is most beneficial. Methods The rat colon carcinoma cell line CC-531 was injected into the peritoneal cavity of 80 WAG/Rij rats to induce PC. Animals were randomized into four treatment groups ( n  = 20): CS only, CS followed by HIPEC (mitomycin 35 mg/m 2 at 41.5°C), CS followed by EPIC during 5 days (i.p. injection of mitomycin on day 1 and 5-fluorouracil on days 2–5), and CS followed by HIPEC plus EPIC. Primary outcome was survival. Results In rats treated with CS only, median survival was 53 days (95% confidence interval (CI) 49–57 days). In rats treated with CS followed by HIPEC, survival was significantly ( P  = 0.001) increased (median survival 94 days, 95% CI 51–137 days). In the group treated with EPIC after CS, 12 out of 20 rats were still alive at the end of the experiment ( P  &lt; 0.001 as compared with CS only). In the group receiving both treatments, 11 rats died of toxicity, and therefore this group was not included in the survival analysis. Conclusions Both EPIC and HIPEC were effective in prolonging survival. The beneficial effect of EPIC on survival seemed to be more pronounced than that of HIPEC. Further research is indicated to evaluate and compare the possible benefits and adverse effects associated with both treatments.</abstract><cop>New York</cop><pub>Springer-Verlag</pub><pmid>21837528</pmid><doi>10.1245/s10434-011-1984-9</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects Animals
Antineoplastic Combined Chemotherapy Protocols - administration & dosage
Antineoplastic Combined Chemotherapy Protocols - adverse effects
Carcinoma - drug therapy
Carcinoma - secondary
Carcinoma - therapy
Chemotherapy, Adjuvant
Colonic Neoplasms - pathology
Confidence Intervals
Fluorouracil - administration & dosage
Hyperthermia, Induced
Intraoperative Care
Kaplan-Meier Estimate
Male
Medicine
Medicine & Public Health
Mitomycin - administration & dosage
Oncology
Peritoneal Neoplasms - drug therapy
Peritoneal Neoplasms - secondary
Peritoneal Neoplasms - therapy
Postoperative Care
Proportional Hazards Models
Rats
Surgery
Surgical Oncology
Translational Research and Biomarkers
title Intraoperative versus Early Postoperative Intraperitoneal Chemotherapy after Cytoreduction for Colorectal Peritoneal Carcinomatosis: an Experimental Study
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