Temperature Dependence of a Diode-pumped Cryogenic Erbium (Er):Yttrium Aluminum Garnet (YAG) Laser

2009 ◽  
Author(s):  
Larry D. Merkle ◽  
Nikolay Ter-Gabrielyan ◽  
G. Alex Newburgh ◽  
Arockiasamy Michael ◽  
Mark Dubinskii
Keyword(s):  
Temperature Dependence ◽  
Yttrium Aluminum Garnet ◽  
Yag Laser ◽  
Yttrium Aluminum ◽  
Diode Pumped

scholarly journals Q-Switched Neodymium-Doped Yttrium Aluminum Garnet Laser Therapy for Pigmented Skin Lesions: Efficacy and Safety

2013 ◽  
Vol 10 (2) ◽  
pp. 46-50 ◽  
Author(s):  
D Karn ◽  
S KC ◽  
A Amatya ◽  
EA Razouria ◽  
M Timalsina ◽  
...  
Keyword(s):  
Recurrence Rate ◽  
Safety Profile ◽  
Yttrium Aluminum Garnet ◽  
Skin Lesions ◽  
University Hospital ◽  
Efficacy And Safety ◽  
Yag Laser ◽  
Pigmentary Disorders ◽  
Yttrium Aluminum ◽  
Pigmented Skin Lesions

Background Nepalese population with Fitzpatrick skin types III-V has high prevalence of pigmentary disorders and it is a growing cosmetic concern. Q-Switched Neodymium- Doped Yttrium Aluminum Garnet (QS Nd-YAG) laser is an efficacious tool in the treatment of pigment disorders. Objective To highlight the efficacy and safety profile of various pigment disorders. Methods A prospective study done in Dhulikhel Hospital, Kathmandu University Hospital from January 2009 to January 2011. Patients undergoing laser for pigmented skin lesions were followed for response and safety profile. We included total 270 patients in the study with various disorders especially nevus, tattoos and melasma. Settings were repeated at 3-4 weeks interval and response was evaluated on clinical basis. Efficacy was then evaluated according to various parameters. Results For nevus, total 840 treatment sessions had been performed with an average of 6.88 sessions (range 3-11). Nd: YAG laser was very efficacious in removal of blue and black colored tattoos with an average of 7.9 and 9.5 sessions respectively. However, red mixed with blue and or green tattoos were relatively resistant to treatment and required average 10.33 treatment sessions. Melasma and freckles both responded to the therapy but recurrence rate was high. Conclusion Our results indicate that QS Nd: YAG laser is an effective modality for pigment disorders among Nepalese population. Nevus and melasma respond well but recurrence rate of melasma is high. Blue tattoos respond well while mixed colored tattoos are quite resistant to Nd: YAG laser alone. Transient pain and temporary hyperpigmentation are common side effects. Kathmandu University Medical Journal | Vol.10 | No. 2 | Issue 38 | Apr – June 2012 | Page 46-50 DOI: http://dx.doi.org/10.3126/kumj.v10i2.7343

scholarly journals Encrusted Ureteral Stent Retrieval Using Flexible Ureteroscopy with a Ho: YAG Laser

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Takashi Kawahara ◽  
Hiroki Ito ◽  
Hideyuki Terao ◽  
Takehiko Ogawa ◽  
Hiroji Uemura ◽  
...  
Keyword(s):  
Yttrium Aluminum Garnet ◽  
Renal Stones ◽  
Ureteral Stent ◽  
Flexible Ureteroscopy ◽  
Ureteral Stents ◽  
Yag Laser ◽  
Stent Retrieval ◽  
Yttrium Aluminum

A 23-year-old female had bilateral ureteral stents placed due to bilateral renal stones and hydronephrosis. The bilateral ureteral stents were changed every 3 months. A kidney ureter bladder (KUB) film showed left encrustation along the ureteral stent thus necessitating removal; however, the ureteral stent could not be removed cystoscopically. The ureteral stent was, therefore, extracted using flexible ureteroscopy (URS) with a holmium (Ho): yttrium aluminum garnet (YAG) laser.

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