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Socioeconomic Barriers to CRS HIPEC for Appendiceal Cancer within a Regional Academic Hospital System

  • Peritoneal Surface Malignancy
  • Published:
Annals of Surgical Oncology Aims and scope Submit manuscript

Abstract

Background

Appendiceal cancer with peritoneal metastases (ACPM) is a complex disease requiring multidisciplinary care. Cytoreductive surgery and hyperthermic intraperitoneal chemoperfusion (CRS HIPEC) can significantly improve survival but requires evaluation by a surgical oncologist and significant treatment endurance. The impacts of socioeconomic status (SES) and other social determinants of health on rates of surgical evaluation and treatment have not been examined.

Methods

We conducted a retrospective cohort study examining all patients with ACPM from 2010 to 2018 in a regional healthcare system. Patient characteristics, oncologic details, treatment strategies, and survival were examined. The primary outcomes of interest were referral to Surgical Oncology, receipt of CRS HIPEC, and survival.

Results

Of 194 patients identified, 94% had synchronous ACPM. The majority of patients (95%) were referred to surgical oncology. Advanced age was the only predictor of nonreferral (p < 0.001). A total of 147 patients (76%) ultimately underwent CRS HIPEC. After adjusting for medical and tumor characteristics, CRS HIPEC was less likely for patients who were unmarried [odds ratio (OR) 0.253, p = 0.004] or of low SES (OR 0.372, p = 0.03). On subanalysis of patients undergoing CRS HIPEC, median overall survival was worse for patients of low SES [51 months versus not reached (NR), p = 0.05], and this disparity persisted on multivariate analysis [hazard ratio (HR) = 2.278, p = 0.001].

Conclusions

This analysis is the first to evaluate barriers to CRS HIPEC for ACPM. While most patients were evaluated by a multidisciplinary team, nonmedical factors may play a role in the treatment received and ultimate outcomes. Addressing these disparities is crucial for ensuring equitable outcomes and improving patient care.

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Acknowledgements

Research reported in this publication was supported by the National Cancer Institute of the National Institutes of Health under Award Number T32CA113263. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

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Correspondence to Richard S. Hoehn MD.

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The datasets generated and analyzed during the current study are available from the corresponding author on reasonable request.

Ethical Approval Statement

This study was approved by our institutional review board (IRB20100475).

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Rieser, C., Phelos, H., Zureikat, A. et al. Socioeconomic Barriers to CRS HIPEC for Appendiceal Cancer within a Regional Academic Hospital System. Ann Surg Oncol 29, 6593–6602 (2022). https://doi.org/10.1245/s10434-022-11949-8

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  • DOI: https://doi.org/10.1245/s10434-022-11949-8

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