Comparative evaluation of continuous and superpulsed CO2 laser in bovine ocular tumours

AEKTA V  VYAS; P B  PATEL; P T  SUTARIA; S H  RAVAL; J B  PATEL; A M  PATEL; S B  KAPADI; S A  CHAUDHARY

doi:10.56093/ijans.v96i6.177626

Authors

AEKTA V VYAS College of Veterinary Science and A.H., Kamdhenu University, Sardarkrushinagar-385 506, Gujarat, India
P B PATEL College of Veterinary Science and A.H., Kamdhenu University, Sardarkrushinagar-385 506, Gujarat, India
P T SUTARIA College of Veterinary Science and A.H., Kamdhenu University, Sardarkrushinagar-385 506, Gujarat, India
S H RAVAL College of Veterinary Science and A.H., Kamdhenu University, Sardarkrushinagar-385 506, Gujarat, India
J B PATEL College of Veterinary Science and A.H., Kamdhenu University, Sardarkrushinagar-385 506, Gujarat, India
A M PATEL College of Veterinary Science and A.H., Kamdhenu University, Sardarkrushinagar-385 506, Gujarat, India
S B KAPADI College of Veterinary Science and A.H., Kamdhenu University, Sardarkrushinagar-385 506, Gujarat, India
S A CHAUDHARY College of Veterinary Science and A.H., Kamdhenu University, Sardarkrushinagar-385 506, Gujarat, India

https://doi.org/10.56093/ijans.v96i6.177626

Keywords:

CO2 laser, Continuous mode, Dermoids, OSCC, Superpulsed mode, Thermal damage

Abstract

The present study was undertaken to compare the efficacy of continuous and super pulsed modes of carbon dioxide (CO₂) laser for resection of bovine ocular tumours and to evaluate associated thermal tissue damage and surgical outcomes. Seventeen bovines with ocular tumours having a maximum diameter of ≤65 mm were randomly allocated into two groups. Tumour resection was performed using CO₂ laser in continuous mode in Group I and SuperPulsed mode in Group II under general anaesthesia. Clinical characteristics, laser parameters, postoperative recovery, thermal damage, and histopathological findings were evaluated. A total of 34 ocular tumours were studied, of which most were well demarcated and histopathologically diagnosed as dermoids. Ocular squamous cell carcinoma represented the major malignant tumour type encountered. The third eyelid and medial canthus were the most frequently affected sites. Mean power output, excision time, and thermal tissue damage were significantly higher in the continuous mode than in the Super Pulsed mode. Physiological parameters and Schirmer tear test-I values remained within normal limits throughout the observation period. All animals recovered uneventfully and were followed for two months postoperatively. Tumour recurrence was observed only in two animals treated using the continuous mode, whereas no recurrence occurred in the super pulsed group. The findings indicated that CO₂ laser is an effective modality for bovine ocular tumour resection and that the super pulsed mode provided superior surgical precision with reduced collateral thermal damage and improved clinical outcomes.

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