Cytoreductive Surgery with Hyperthermic Intraperitoneal Chemotherapy in Patients with Appendix Mucinous Adenocarcinoma: Series of 43 Cases

Abstract

Introduction: Primary appendix carcinoma is a rare condition. Many international retrospective reviews outline the experience of different centers in appendicular neoplasms. The cancer treatment in this location is complex and depends on the histological subtype and the extent of the disease. One of the most promising treatments is cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC). In Brazil, there is no description of series of cases with this therapeutic approach. The purpose of this case series is to analyze the sociodemographic characteristics and the type of therapeutic intervention in patients with malignant diseases of the appendix in a High Complexity Care Center in Oncology III (Cacon III). Case reports: 43 cases of primary appendix tumors were included. Low-grade mucinous adenocarcinoma was the most diagnosed neoplasm. The main protocol used was 1 to 2 surgeries and application of mitomycin C at an average temperature of 40 degrees. There was great heterogeneity regarding the use of the protocol. Conclusion: The present report of 43 cases is important because it is a rare tumor with this location. The therapeutic modality described is promising, but there is no defined protocol for this purpose. It is necessary to update the therapeutic guidelines to standardize the conduct internally, especially in the case of a national reference unit.