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Abstract
The aim of this study was to evaluate the potential role of intraoperative hyperthermia (IOHT) in the management of stage IV pancreatic adenocarcinoma. Twenty-seven patients (group A) received pre-operative chemotherapy (5-FU), by-pass surgery with intraoperative bolus infusion of 5-FU and post-operatively multi-agent chemotherapy plus sandostatin and external beam irradiation (45Gy, 25 fractions, 5 days a week). In a non-randomized way, 10 patients (group B) received an additional single session of IOHT (43-45°C, 1h) performed directly on the tumour using a waveguide applicator (433MHz) with interstitial measurements of temperature measured. A brief instrument was developed for evaluating patients' quality of life. No progressive disease (PD) was noticed in group B vs 11% (3/27) of PD in group A. There was also a significant increase of overall survival (OS) in group B vs A patients ( p = 0.029, log-rank test). Moreover, there was a significant improvement for group B vs A patients regarding Karnofsky performance status ( p < 0.001, Mann-Whitney test), pain score ( p < 0.001, Mann-Whitney test) and quality of life score ( p = 0.031, Mann-Whitney test). A significant correlation was noticed between OS and thermal parameters such as average T min ( p = 0.043), average T max ( p = 0.027) and cumulative minutes T 90 S 44°C ( p < 0.001). Combined IOHT with chemotherapy (pre-, intra- and post-operative) and external beam post-operative radiotherapy seem to have a potential benefit in the management of unresectable adenocarcinoma of the pancreas, concerning local response, OS and quality of life. Further clinical studies to evaluate the benefit of IOHT suggested in this study are warranted.