Which laser is used for both endoscopic coagulation and endometrial laser ablation?

Which laser is used for both endoscopic coagulation and endometrial laser ablation?

• A. Nd:YAG
• B. CO2
• C. Argon
• D. KTP

Answer: (A)

The energy delivery characteristics of a laser—how deeply it penetrates tissue and what tissue effect it produces—determine its suitability for endoscopic coagulation and endometrial ablation. The Nd:YAG laser, with a 1064 nm wavelength, penetrates tissue more deeply than the others, allowing it to coagulate bleeding tissue and, when delivered through a hysteroscopic fiber, to ablate the endometrium effectively. CO2 is absorbed by water and tends to vaporize surface tissue with very shallow depth, making it excellent for precise cutting but less suitable for deeper coagulation or broad endometrial destruction. Argon and KTP lasers have shallower penetration and are mainly used for superficial mucosal coagulation, not for comprehensive endometrial ablation. Therefore, Nd:YAG is the best choice because it provides the deep coagulation and ablation capabilities needed for both endoscopic coagulation and endometrial laser ablation.

The energy delivery characteristics of a laser—how deeply it penetrates tissue and what tissue effect it produces—determine its suitability for endoscopic coagulation and endometrial ablation. The Nd:YAG laser, with a 1064 nm wavelength, penetrates tissue more deeply than the others, allowing it to coagulate bleeding tissue and, when delivered through a hysteroscopic fiber, to ablate the endometrium effectively. CO2 is absorbed by water and tends to vaporize surface tissue with very shallow depth, making it excellent for precise cutting but less suitable for deeper coagulation or broad endometrial destruction. Argon and KTP lasers have shallower penetration and are mainly used for superficial mucosal coagulation, not for comprehensive endometrial ablation. Therefore, Nd:YAG is the best choice because it provides the deep coagulation and ablation capabilities needed for both endoscopic coagulation and endometrial laser ablation.