<s>[INST] Hello Doctor, My father has been diagonised with cancer in throat. His age is 72 years. 1 year back he went through radiation therapy , but last week it was diagonosed , that it re occur on his vocal cord. Doctors have told for slavage by laser operation. On net came to know abt pulsed-KTP laser treatment. what is that ? [/INST] Hi, Thanks for writing in. The pulsed KTP laser is pulsed potassium Titans phosphate laser. It has been in use since last few years. This is under category of anxiolytic lasers have been shown to be an effective treatment strategy for laryngeal papillomatosis which is a grow thin throat. These lasers precisely target hemoglobin within the microcirculation of cancer regions. It has been demonstrated that the advantages of the fiber-based pulsed 532-nm potassium-titanyl-phosphate (KTP) laser with local anesthesia are better than conventional surgery. Please do not worry. </s>