Preoperative systemic chemotherapy does not benefit for appendiceal pseudomyxoma peritonei

Peritoneal Surface Malignancy Retrospective cohort study Hyperthermic Intraperitoneal Chemotherapy Appendix 03 medical and health sciences Percutaneous Coronary Intervention 0302 clinical medicine Pathological Ovarian cancer Management of Peritoneal Carcinomatosis from Digestive Tract Health Sciences Humans Chemotherapy Cytoreductive surgery Pseudomyxoma peritonei Perioperative Internal medicine Biology Peritoneal Neoplasms Retrospective Studies Cancer Intraperitoneal Chemotherapy Gastroenterology Paleontology Hyperthermia, Induced Cytoreduction Surgical Procedures Diagnosis and Management of Appendicitis Pseudomyxoma Peritonei Combined Modality Therapy 3. Good health Survival Rate Hyperthermic intraperitoneal chemotherapy Myocardial infarction Appendiceal Neoplasms Genomic Studies and Treatment of Ovarian Carcinoma Reproductive Medicine Emergency Medicine Medicine Conventional PCI Surgery
DOI: 10.1111/ans.18041 Publication Date: 2022-09-22T16:20:50Z
ABSTRACT
AbstractBackgroundPseudomyxoma peritonei (PMP) is a clinically malignant tumour syndrome mainly derived from mucin‐producing appendiceal tumours. This study aimed to explore the effect of preoperative systemic chemotherapy (PSC) before cytoreductive surgery (CRS) plus hyperthermic intraperitoneal chemotherapy (HIPEC) on the safety and postoperative survival in patients with appendiceal PMP.MethodsWe performed a retrospective analysis including consecutive patients with PMP undergoing primary surgery between January, 2008 and December, 2019 in Aerospace Center Hospital. The clinical data and postoperative survival were compared between PSC group and non‐PSC group.ResultsSeven hundred and fifty patients were included in the study. Significant differences were found between PSC group and non‐PSC group on clinicopathological data and perioperative outcomes and the independent risk factor of serious complications was blood loss >1000 mL (P = 0.026). Shorter median overall survival (OS) was found (42 months, 95% CI 31.9–52.1) in PSC group than that (67 months 95% CI 44.5–89.5) in non‐PSC group. In the stratified study with PCI < 20, CC 0/1 and low‐grade pathological subtype, the OS from non‐PSC group was significantly better than that in PSC group (log rank P‐values are <0.001, 0.006 and <0.001, respectively). Multivariate survival analysis showed that CC 0/1, HIPEC, PCI < 20 and low‐grade pathological subtype were the independent prognostic factors for better OS.ConclusionsPSC does not increase the risk of major perioperative complications in patients with appendiceal PMP, but it also does not bring postoperative survival benefits to patients either.
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