Proposed classification system for reporting 532-nm pulsed potassium titanyl phosphate laser treatment effects on vocal fold lesions

2014 ◽  
Vol 124 (5) ◽  
pp. 1170-1175 ◽  
Author(s):  
Pavan S. Mallur ◽  
Michael M. Johns ◽  
Milan R. Amin ◽  
Clark A. Rosen
Keyword(s):  
Laser Treatment ◽  
Classification System ◽  
Vocal Fold ◽  
Treatment Effects ◽  
Potassium Titanyl Phosphate ◽  
532 Nm ◽  
Potassium Titanyl Phosphate Laser

532 nm Pulsed Potassium-Titanyl-Phosphate Laser Treatment of Laryngeal Papillomatosis under General Anesthesia

2007 ◽  
Vol 117 (8) ◽  
pp. 1500-1504 ◽  
Author(s):  
James A. Burns ◽  
Steven M. Zeitels ◽  
Lee M. Akst ◽  
Matthew S. Broadhurst ◽  
Robert E. Hillman ◽  
...  
Keyword(s):  
General Anesthesia ◽  
Laser Treatment ◽  
Potassium Titanyl Phosphate ◽  
Laryngeal Papillomatosis ◽  
532 Nm ◽  
Potassium Titanyl Phosphate Laser

Value and utility of 532 nanometre pulsed potassium-titanyl-phosphate laser in endoscopic laryngeal surgery

2009 ◽  
Vol 124 (4) ◽  
pp. 407-411 ◽  
Author(s):  
J A Burns ◽  
A D Friedman ◽  
M J Lutch ◽  
R E Hillman ◽  
S M Zeitels
Keyword(s):  
Medical Records ◽  
Operating Theatre ◽  
Potassium Titanyl Phosphate ◽  
Laryngeal Surgery ◽  
Mucosal Lesions ◽  
Current Impact ◽  
One Year ◽  
532 Nm ◽  
Potassium Titanyl Phosphate Laser ◽  
Angiolytic Laser

AbstractObjectives:Recently, the 532 nm pulsed potassium-titanyl-phosphate laser has emerged as an effective angiolytic laser for treating mucosal lesions of the larynx in the operating theatre and clinic. We sought to assess the current impact of potassium-titanyl-phosphate laser on our laryngeal surgery practice.Study design:Retrospective review of 710 patients undergoing endoscopic laryngeal surgery over a one-year period.Methods:Medical records of the endoscopic laryngeal procedures were reviewed; 386/710 had been performed in the clinic and 324/710 in the operating theatre under general anaesthesia. Indications for the procedures were classified by pathology.Results:Pulsed potassium-titanyl-phosphate laser was used in 209/386 clinic procedures. The indications for these procedures were: dysplasia (114/209 procedures), papillomatosis (89/209), varices or ectasia (three of 209), and ‘other’ (three of 209). Pulsed potassium-titanyl-phosphate laser was used in 178/324 operating theatre endoscopic laryngeal procedures. The indications for these procedures were: cancer (54/178 procedures), dysplasia (52/178), papillomatosis (38/178), varices or ectasia (13/178), polyps (six of 178), nodules (six of 178), stenosis (five of 178), granulation (three of 178), and amyloid (one of 178).Conclusions:Due to its versatility, the 532 nm pulsed potassium-titanyl-phosphate laser is our most commonly utilised instrument for performing endoscopic laryngeal surgery.

The utility of the potassium titanyl phosphate laser in modulating vocal fold scar in a rat model

2013 ◽  
Vol 123 (9) ◽  
pp. 2189-2194 ◽  
Author(s):  
Mike Sheu ◽  
Shuam Sridharan ◽  
Benjamin Paul ◽  
Pavan Mallur ◽  
Sonate Gandonu ◽  
...  
Keyword(s):  
Rat Model ◽  
Vocal Fold ◽  
Potassium Titanyl Phosphate ◽  
Vocal Fold Scar ◽  
Potassium Titanyl Phosphate Laser

Use of 532 nm Potassium Titanyl Phosphate Laser on Vocal Fold Scars Under Topical Anesthesia: A Pilot Study

2021 ◽  
pp. 000348942110418
Author(s):  
Jiajia Wang ◽  
Wenjing Mao ◽  
Rui Fang ◽  
Chunsheng Wei ◽  
Peijie He
Keyword(s):  
Pilot Study ◽  
Vocal Fold ◽  
Wave Pattern ◽  
Topical Anesthesia ◽  
Potassium Titanyl Phosphate ◽  
Ktp Laser ◽  
Contact Mode ◽  
Glottic Closure ◽  
Significant Difference ◽  
532 Nm

Objective: This pilot study aims to evaluate the efficacy of 532 nm potassium titanyl phosphate (KTP) laser under topical anesthesia in patients with vocal fold scars. Methods: A series of 18 patients with vocal fold scars of varying degrees were treated. The KTP laser was used under local anesthesia in the outpatient clinic. It was set to deliver 6 W of power using a continuous output mode. Close-to-contact mode was used for laser irradiation, and contact mode was used for ablation and excision of the lesions. Some of the patients received laser scar ablation on both vocal folds; the scarred vocal fold on one side and the hypertrophic vocal fold on the other. Parameters include glottic closure, amplitude, and mucosal wave pattern were measured using laryngeal stroboscopic examination. Aerodynamic and voice evaluations were carried out using maximum phonation time (MPT), jitter, shimmer, Voice Handicap Index questionnaire (VHI-30), and GRBAS scale. Results: In total, 21 surgeries were performed on 18 patients. Glottic closure, amplitude, and mucosal wave pattern showed improvement 2 months postoperatively ( P < .05). There was significant improvement in the postoperative scores for VHI-30, VHI-emotional sub-scale, VHI-physical sub-scale, and GRBAS ( P < .05). There was no significant difference in the MPT and VHI-functional sub-scale before and after the operation ( P > .05). Re-adhesion of the anterior commissure was observed in 2 patients with Type III scars. Conclusion: The 532 nm KTP laser is an effective tool for the treatment of vocal fold scars. Further research is required to determine if serial laser applications could improve outcomes for this challenging condition. Level of Evidence: Level IV

Quantification of benign lesion regression as a function of 532-nm pulsed potassium titanyl phosphate laser parameter selection

2011 ◽  
Vol 121 (3) ◽  
pp. 590-595 ◽  
Author(s):  
Pavan S. Mallur ◽  
Bobby A. Tajudeen ◽  
Nicole Aaronson ◽  
Ryan C. Branski ◽  
Milan R. Amin
Keyword(s):  
Benign Lesion ◽  
Parameter Selection ◽  
Potassium Titanyl Phosphate ◽  
Laser Parameter ◽  
Lesion Regression ◽  
532 Nm ◽  
Potassium Titanyl Phosphate Laser

Continuous Wave Potassium Titanyl Phosphate Laser Treatment is Safe and Effective for Xanthelasma Palpebrarum

2016 ◽  
Vol 42 (7) ◽  
pp. 860-866 ◽  
Author(s):  
Ellen Greijmans ◽  
Hedwig Luiting-Welkenhuyzen ◽  
Harriet Luijks ◽  
H. Jorn Bovenschen
Keyword(s):  
Laser Treatment ◽  
Continuous Wave ◽  
Potassium Titanyl Phosphate ◽  
Xanthelasma Palpebrarum ◽  
Potassium Titanyl Phosphate Laser
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