Fig. 5From: Clinical outcomes meta-analysis: measuring subendocardial perfusion and efficacy of transmyocardial laser revascularization with nuclear imaging a CO2: LVEF at 12 months. A statistically significant decrease in LVEF was determined in laser therapy patients as compared to control patients (p = 0.01). b CO2: myocardial perfusion at 6 and 12 months. The CO2 laser showed an increase in myocardial perfusion compared to control groups, however this effect was not statistically significant (p = 0.10)Back to article page