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Science articles
Science articlesObjective assessment of thermal effect of holmium laser (Hо:YAG) on biological tissue in an experiment
A. I. Kryukov (1), G. Yu. Tsarapkin (1), S. G. Arzamazov (1), S. A. Panasov (1)
(1) Research Institute of Clinical Otorhinolaryngology named after L. I. Sverzhevsky the Department of Health in Moscow, Moscow, Russia
UDK: 615.849.19:57.085
DOI: https://doi.org/10.18692/1810-4800-2017-5-44-46
ABSTRACT
During the experiment the authors studied the specific features of Ho:YAG-laser effect on biotissues which made it possible to transfer the obtained data to applied medicine, specifically, to use holmium laser for ENT organs surgery, in particular, in case of tonsillectomy and adenotomy. The objective of our work was to study and reduce the thermal effect of holmium laser on biotissues. Biological objects (0.9% physiological saline solution and turkey meat) were subject to intratissual exposure of Ho:YAG-laser radiation for 5 seconds, after that remote temperature measurement of biological objects at the laser exposure area was made with thermal imager FLIR. Biological tissues are heated up to the temperature of 115±14°C, and the thermal damage area depends on laser exposure duration, power and laser radiation frequency, making from 1.5 to 5.0 mm. Under the conditions of cavitation and hydroshock (E = 0.6 J, R = 6 – 8 Hz, t = 5 sec) biotissue is heated by 12.1% of the initial ambient temperature and makes 21.1 °C, the heating area is restricted by the injected solution. The obtained data provide significant reduction of holmium laser thermal effect on biological objects, transfer of the obtained data to the applied medicine and active utilization of holmium laser in otorhinolaryngology, adapting it for surgical interferences on ENT organs, in particular, in case of tonsillectomy and adenotomy.
Publication date:
02.10.2017
Keywords:
laser surgery, experiment, holmium laser, tonsillectomy, adenotomy. For citation:
Kryukov A. I., Tsarapkin G. Yu., Arzamazov S. G., Panasov S. A. Objective assessment of thermal effect of holmium laser (Hо:YAG) on biological tissue in an experiment. Rossiiskaya otorinolaringologiya. 2017;5:44–46. https://doi.org/10.18692/1810-4800-2017-5-44-46