Transmyocardial laser revascularization(TMLR)is a third viable alternative to bypass surgery and angioplasty. TMLR has many advantages

such as limited chest open

little blood loss

easy operation

short time

low cost and so on. It has raised hopes for the most dismal extremes of coronary disease to patients who had been ejected from either bypass or angioplasty. Many clinical studies show TMLR can increase heart′s blood reperfusion

render angina free and improve the patients′ life quality. In this paper

based on different clinical results and opinions

the TMLR procedure

parameter selection

after-operation response

future applications and some debated questions are discussed in detail. All of them can be benefit for further studies and trials.