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High-pressure intrapleural chemotherapy: feasibility in the pig model.

Abstract : ABSTRACT: BACKGROUND: The usual treatments for pleural malignancies are mostly palliative. In contrast, peritoneal malignancies are often treated with a curative intent by cytoreductive surgery and intraperitoneal chemotherapy. As pressure has been shown to increase antitumor efficacy, we applied the concept of high-pressure intracavitary chemotherapy to the pleural space in a swine model. METHODS: Cisplatin and gemcitabine were selected because of their antineoplasic efficacy in vitro in a wide spectrum of cancer cell lines. The pleural cavity of 21 pigs was filled with saline solution; haemodynamic and respiratory parameters were monitored. The pressure was increased to 15-25 cm H2O. This treatment was associated with pneumonectomy in 6 pigs. Five pigs were treated with chemotherapy under pressure. RESULTS: The combination of gemcitabine (100 mg/l) and cisplatin (30 mg/l) was highly cytotoxic in vitro. The maximum tolerated pressure was 20 cm H20, due to haemodynamic failure. Pneumonectomy was not tolerated, either before or after pleural infusion. Five pigs survived intrapleural chemotherapy associating gemcitabine and cisplatin with 20 cm H2O pressure for 60 min. CONCLUSIONS: High-pressure intrapleural chemotherapy is feasible in pigs. Further experiments will establish the pharmacokinetics and determine whether the benefit already shown in the peritoneum is also obtained in the pleura.
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Submitted on : Tuesday, February 28, 2012 - 9:04:18 PM
Last modification on : Sunday, June 26, 2022 - 1:52:44 AM
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Olivier Facy, Pierre-Benoit Pages, Pablo Ortega-Deballon, Guy Magnin, Sylvain Ladoire, et al.. High-pressure intrapleural chemotherapy: feasibility in the pig model.. World Journal of Surgical Oncology, BioMed Central, 2012, 10 (1), pp.29. ⟨10.1186/1477-7819-10-29⟩. ⟨inserm-00675069⟩



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