Resumo

AROKIARAJ, MARK CHRISTOPHER. Novel Transfer of Very-low Viscosity Ultraviolet Light Curable Cyan Methacrylate on a Saline Immersed In-vitro Sheep Heart Model and the Paintbrush Technique. Rev. argent. cardiol. [online]. 2017, vol.85, n.4, pp.1-8. ISSN 1850-3748.

Background: Cyan methacrylate is a compound with remarkable adhesion properties used in different specific areas, including medicine, where it can be applied in some entities and is also subject of research in the field of cardiology Objective: The aim of this study was to develop a novel technique for the transfer of very-low viscosity cyan methacrylate on the inner and outer surfaces of the heart. Methods: Very-low viscosity ultraviolet curable cyan methacrylate was mixed with commercially available dye to demonstrate its ability of transfer on the inner and outer surfaces of an in-vitro heart model. Cyan methacrylate (0.5 ml) was mixed with 0.2 ml of ink, and the material was injected on the surface of the heart in dry air, allowing its fixation for 2-3 seconds. Subsequently, the whole preparation was immersed in saline, and was vigorously shaken to remove the unbound compound. A similar experi-ment was performed without cyan methacrylate, and with high viscosity cyan methacrylate (3000 cps). A significant amount of the compound was visually found to attach to the surfaces of the heart compared with ink alone. Then, after soaking the tissue in saline solution, effective transfer of the compound was assessed on the inner and the outer surfaces of the heart. Results: Among various techniques, the paintbrush technique was the most effective one for the targeted transfer of the com-pound. With this specific areas, such as instead of specific areas, as technique, it was easier to transfer the compound on the epicardial and endocardial surfaces. Also, other specific areas, as the left atrial appendage, the left ventricular inner surfaces at the origin of the papillary muscle and the left ventricular apex were successfully investigated. The ultraviolet light source was a pen-shaped device based on a light emission diode. Some compound precipitation was observed in some areas following ultraviolet treatment. The experiment was repeated with three different samples to determine the results. Conclusions: Very-low viscosity ultraviolet curable cyan methacrylate transfer is potentially useful to study the inner and outer surfaces of the heart. This technique could be useful for growth factor transfer.

Palavras-chave : Cyan methacrylate - Low viscosity bio-adhesive - transfer technique - cardiac surfacesors or protein molecules on the surface of the heart.

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