ArticleCancer diagnosis & prognosis
Perspective on an Innovative Curative Strategy for Peritoneal Metastasis Involving Peritonectomy, Hyperthermic Intraperitoneal Chemotherapy, and Adjuvant Chemotherapy Identified as Effective in the Histoculture Drug Response Assay (HDRA).
Article in Cancer diagnosis & prognosis. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Efficacy and safety of hyperthermic intraperitoneal intraoperative chemotherapy plus surgery in advanced ovarian cancer patients.The Journal of international medical research · 2025Trial
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16 authors.
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Abstract
Background/Aim: Peritoneal carcinomatosis is the end stage for patients with gastrointestinal cancer, with survival ranging between 2 and 9 months. Pancreatic acinar cell carcinoma (PACC) is rare and can result in peritoneal metastases. The efficacy of chemotherapy for patients with PACC is unknown, and a systemic treatment strategy has not been established. The aim of the present perspective is to discuss a potential curative strategy combining surgery, heated intraperitoneal chemotherapy (HIPEC), and the histoculture drug response assay (HDRA) to identify effective adjuvant chemotherapy for PACC with peritoneal metastases, based on a published case report. Case Report: A 31-year-old man with a 20 cm epigastric mass, diagnosed as PACC, had curative-intent resection of a tumor on the distal stomach and pancreas tail. The patient recurred after four courses of adjuvant oral S-1 treatment. Laparotomy demonstrated peritoneal metastases with a peritoneal cancer index of 18. Ascites or other cancer cells in the peritoneal wash were not found. Peritonectomy, combined with HIPEC with gemcitabine and docetaxel, was performed intraoperatively. Postoperative 3-dimensional histoculture of fragments of the resected tumor with drug response testing with the histoculture drug response assay (HDRA) showed gemcitabine had the highest tumor inhibitory rate (70%) among six drugs tested. Based on the HDRA results, the patient was treated with adjuvant systemic gemcitabine chemotherapy. The patient did not have a recurrence within 18 months after surgery. Conclusion: The present innovative treatment of PACC with peritoneal metastases used laparotomy to determine the extent of peritoneal metastases, peritonectomy to attempt to completely remove the tumor, HIPEC for intraoperative hyperthermic-chemotherapy, and the HDRA to determine the most effective drug for adjuvant chemotherapy. These procedures can be individualized for each patient's cancer, and the HDRA is most critical for individualization.
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