Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-47698
Opitz, I; Erne, B V; Demirbas, S; Jetter, A; Seifert, Burkhardt; Stahel, R; Weder, W (2011). Optimized intrapleural cisplatin chemotherapy with a fibrin carrier after extrapleural pneumonectomy: a preclinical study. Journal of Thoracic and Cardiovascular Surgery, 141(1):65-71.
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OBJECTIVE: Our objective was to evaluate whether platinum concentrations in chest wall tissue and in serum are optimized by intracavitary application of cisplatin loaded to a fibrin carrier compared with cisplatin solution in a randomized setting of a pig model.
METHODS: After left-sided pneumonectomy including parietal pleurectomy, pigs were randomly assigned to receive either 90 mg/m(2) cisplatin intracavitary solution (n = 6) or to receive 5 mg cisplatin-fibrin (n = 5) applied on a predefined area of the chest wall. Platinum concentration in serum as well as in chest wall tissue was determined at several early time points until day 5 after treatment. Platinum levels were measured by inductively coupled plasma sector field mass spectrometric detection with a matrix-matched calibration procedure.
RESULTS: The dose- and surface-corrected (geometric) mean concentration of cisplatin in chest wall tissue 2 hours but also at day 5 after the application was doubled in animals treated with cisplatin-fibrin compared with the animals treated with cisplatin-solution. In serum, the dose- and surface-corrected exposure toward cisplatin (area under the curve(0-5d)) was significantly lower with cisplatin-fibrin than with cisplatin-solution (P < .0005). This is also reflected by significantly reduced serum creatinine and urea values in the cisplatin-fibrin group (P < .0001). Animals treated with cisplatin-fibrin additionally had a significantly better postoperative course as assessed by a well-being score (P < .001).
CONCLUSIONS: After cisplatin-fibrin treatment, cisplatin tissue concentration was increased whereas systemic cisplatin concentrations were significantly reduced in comparison with cisplatin-solution treatment. This finding offers a clear advantage inasmuch as rate and severity of systemic adverse events can be reduced while local cytotoxic concentrations are at least maintained.
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|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||04 Faculty of Medicine > Epidemiology, Biostatistics and Prevention Institute (EBPI)
04 Faculty of Medicine > University Hospital Zurich > Clinic for Clinical Pharmacology and Toxicology
04 Faculty of Medicine > University Hospital Zurich > Clinic for Oncology
04 Faculty of Medicine > University Hospital Zurich > Clinic for Thoracic Surgery
|Dewey Decimal Classification:||610 Medicine & health|
|Deposited On:||23 Mar 2011 14:22|
|Last Modified:||09 Feb 2014 10:58|
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