Hot-tip laser. Results and complications. The hot tip laser system for atheroablation has been used since mid-1984 as a device for broadening the indications for and extending the applicability of angioplasty in the management of lower-extremity atherosclerosis. It has been a controversial device. Although the system demonstrates that it can occasionally be useful for the management of occlusive as opposed to stenotic disease of the infrainguinal arteries, a close examination of the published data fails to demonstrate a consistent improvement in either the primary success or long-term patency rates for thermal energy applied to atheroma for recanalization of the lower extremity arteries. 