Matteo Renzulli1, Giuliano Peta2, Francesco Vasuri3, Giovanni Marasco4, Daniele Caretti5, Laura Bartalena2, Daniele Spinelli2, Emanuela Giampalma6, Antonietta D'Errico3, Rita Golfieri2. 1. Department of Radiology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, Bologna, Italy. Electronic address: matteo.renzulli@aosp.bo.it. 2. Department of Radiology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, Bologna, Italy. 3. Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, Bologna, Italy. 4. Gastroenterology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Albertoni 15, Bologna, Italy. 5. "Toso Montanari" Industrial Chemistry Department, University of Bologna, Bologna, Italy. 6. Radiology Unit, Bufalini Hospital, Cesena, Italy.
Abstract
INTRODUCTION AND OBJECTIVES: Conventional transarterial chemoembolization (cTACE) has several limitations due to the lack of standardization. The aim of this study was to evaluate the chemical and physical characteristics and behaviors over time of emulsions for cTACE and to assess intra- and inter-operator variabilities in the preparation processes. MATERIALS AND METHODS: This in vitro study involved evaluation of emulsions for cTACE prepared using two methods: water-in-oil (WiO) and chemotherapeutic-in-oil (CiO). Three emulsions were prepared with each method and obtained after 20, 50, and 100 pumping exchanges. A drop from each final mixture was analyzed via light microscopy (time 1) and after 5, 10, 15, and 20min since the end of preparation. After 20min, all preparations were re-mixed and new drops were re-evaluated. The intra- and inter-operator variabilities were analyzed. RESULTS: The mean droplet diameter decreased non-significantly when the number of pumping exchanges increased and increased significantly over time for both WiO and CiO. The droplets returned to their initial diameters after re-mixing. There were no significant differences in the intra- and inter-operator variabilities (P>0.01). CONCLUSIONS: Any interventional radiologist, regardless of their experience, may prepare these emulsions. These data may represent a set of instructions to standardize cTACE.
INTRODUCTION AND OBJECTIVES: Conventional transarterial chemoembolization (cTACE) has several limitations due to the lack of standardization. The aim of this study was to evaluate the chemical and physical characteristics and behaviors over time of emulsions for cTACE and to assess intra- and inter-operator variabilities in the preparation processes. MATERIALS AND METHODS: This in vitro study involved evaluation of emulsions for cTACE prepared using two methods: water-in-oil (WiO) and chemotherapeutic-in-oil (CiO). Three emulsions were prepared with each method and obtained after 20, 50, and 100 pumping exchanges. A drop from each final mixture was analyzed via light microscopy (time 1) and after 5, 10, 15, and 20min since the end of preparation. After 20min, all preparations were re-mixed and new drops were re-evaluated. The intra- and inter-operator variabilities were analyzed. RESULTS: The mean droplet diameter decreased non-significantly when the number of pumping exchanges increased and increased significantly over time for both WiO and CiO. The droplets returned to their initial diameters after re-mixing. There were no significant differences in the intra- and inter-operator variabilities (P>0.01). CONCLUSIONS: Any interventional radiologist, regardless of their experience, may prepare these emulsions. These data may represent a set of instructions to standardize cTACE.
Authors: Mina S Makary; Stuart Ramsell; Eric Miller; Eliza W Beal; Joshua D Dowell Journal: World J Gastroenterol Date: 2021-11-21 Impact factor: 5.742