Tissue effects of a newly developed diode pumped pulsed Thulium:YAG laser compared to continuous wave Thulium:YAG and pulsed Holmium:YAG laser.
Continuous wave Thulium:YAG laser (CW)
Holmium:YAG laser
Pulsed Thulium:YAG laser
Tissue interaction
Journal
World journal of urology
ISSN: 1433-8726
Titre abrégé: World J Urol
Pays: Germany
ID NLM: 8307716
Informations de publication
Date de publication:
Sep 2021
Sep 2021
Historique:
received:
07
10
2020
accepted:
05
02
2021
pubmed:
18
3
2021
medline:
29
1
2022
entrez:
17
3
2021
Statut:
ppublish
Résumé
The objective of this study is to evaluate the laser-tissue effects of laser radiation emitted by a newly developed high frequency pulsed Tm:YAG laser in comparison to the continuous wave Tm:YAG laser and the pulsed Ho:YAG laser. Ex-vivo experiments were performed on freshly slaughtered porcine kidneys in a physiological saline solution. Experiments were performed using two different laser devices in different settings: A Tm:YAG laser was operated in a pulsed mode up to 300 Hz and in a continuous wave (CW) mode. Results were compared with a 100 W standard pulsed Ho:YAG laser system. Comparative tissue experiments were performed at 5 W, 40 W and 80 W. The incision depth and the laser damage zone were measured under a microscope using a calibrated ocular scale. Increased laser power resulted in increased incision depth and increased laser damage zone for all investigated lasers in this set-up. The Ho:YAG created the largest combined tissue effect at the 5 W power setting and seems to be the least controllable laser at low power for soft tissue incisions. The CW Tm:YAG did not incise at all at 5 W, but created the largest laser damage zone. For the new pulsed Tm:YAG laser the tissue effect grew evenly with increasing power. Among the investigated laser systems in this setting the pulsed Tm:YAG laser shows the most controllable behavior, insofar as both the incision depth and the laser damage zone increase evenly with increasing laser power.
Identifiants
pubmed: 33728503
doi: 10.1007/s00345-021-03634-4
pii: 10.1007/s00345-021-03634-4
pmc: PMC8510916
doi:
Substances chimiques
Thulium
8RKC5ATI4P
Types de publication
Comparative Study
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
3503-3508Informations de copyright
© 2021. The Author(s).
Références
Br J Urol. 1988 Jun;61(6):487-9
pubmed: 2900041
BJU Int. 2010 Aug;106(3):368-72
pubmed: 19912204
Springerplus. 2016 Mar 03;5:266
pubmed: 27006875
Curr Opin Urol. 1998 Jan;8(1):11-5
pubmed: 17035836
Chin Med J (Engl). 2015 Apr 5;128(7):884-9
pubmed: 25836607
BJU Int. 2011 Apr;107(7):1030-43
pubmed: 21438974
Lasers Surg Med. 2010 Mar;42(3):237-44
pubmed: 20333741
Urology. 2012 Apr;79(4):869-74
pubmed: 22342411
Eur Urol. 2015 Jun;67(6):1099-1109
pubmed: 25613154
Eur Urol. 2016 Mar;69(3):475-82
pubmed: 26344917
Urol Clin North Am. 1988 Aug;15(3):369-75
pubmed: 2900567
Actas Urol Esp. 2013 Feb;37(2):63-78
pubmed: 22989380
Urology. 1996 Jan;47(1):48-51
pubmed: 8560662
Lasers Med Sci. 2009 Mar;24(2):172-8
pubmed: 18270761
J Endourol. 1994 Apr;8(2):105-10
pubmed: 8061665
Br J Urol. 1992 Jun;69(6):603-8
pubmed: 1379101