SAFETY AND EFFICACY OF LONG PULSED 1064NM ND:YAG LASER VERSUS LIQUID NITROGEN CRYOTHERAPY FOR THE TREATMENT OF WARTS – A COMPARATIVE STUDY.
Main Article Content
Keywords
Warts, long-pulsed 1064 nm Nd, YAG laser, liquid nitrogen cryotherapy
Abstract
Background
Warts are benign epidermal growths on the skin and mucous membrane caused by infection with human papillomavirus. Complete clearance is not always achieved with the conventional therapies. Previous studies have shown the effectiveness of long pulsed 1064 nm Nd: YAG laser in the treatment of warts.
Objective
To compare the safety and efficacy of LP 1064 nm Nd: YAG laser with liquid nitrogen cryotherapy for the treatment of warts.
Methods
A total of sixty patients with warts were equally divided into two groups. First group received LP Nd: YAG laser treatment once in every four weeks for 16 weeks. Second group received liquid nitrogen cryotherapy once weekly for 4 weeks or until clearance of warts, whichever was earlier. Follow up was done at 4 and 8 weeks in laser group and at 2 and 4 weeks in cryotherapy group.
Results
The laser group demonstrated a significantly higher clearance rate (90.0% vs. 56.6%, p<0.01), requiring fewer treatment sessions (1.3 ± 0.5 vs. 2.8 ± 1.1, p < 0.01) compared to cryotherapy group. Laser group also had lesser complications and a lower relapse rate (0.0% vs. 13.3%, p=0.05) compared to cryotherapy group.
Conclusion
LP 1064nm Nd: YAG laser is a safer and therapeutically more effective treatment modality requiring lesser number of treatment sessions, lesser complications and lower relapse rates compared to liquid nitrogen cryotherapy.
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Dr. Bhagyashri S Teli
3rd year Postgraduate student at Department of Dermatology, Venereology and Leprosy, Hassan Institute of Medical Sciences, Hassan
Dr. Vinay K N
Assistant Professor at Department of Dermatology, Venereology and Leprosy, Hassan Institute of Medical Sciences, Hassan
Dr. Suresh M R
Associate Professor at Department of Dermatology, Venereology and Leprosy, Hassan Institute of Medical Sciences, Hassan
Dr. Umadevi H R
Senior Resident at Department of Dermatology, Venereology and Leprosy, Hassan Institute of Medical Sciences, Hassan
Dr. Vivekananda Ittigi
Senior Resident at Department of Dermatology, Venereology and Leprosy, Hassan Institute of Medical Sciences, Hassan