排血前期/排血期(PEP/LVET)是心功能失调相当敏感可靠的指标,在慢性冠心病中 PEP/LVET 有重要预后意义,多数研究表明休息时,其比值如≥0.50,1年内死亡率至少为30%～60%。Weessler 发现休息时 PEP/LVET 超过0.42,5年死亡率 PEP / LVET is a very sensitive and reliable indicator of cardiac dysfunction. PEP / LVET has an important prognostic significance in chronic coronary heart disease. Most studies show that at rest, the ratio is greater than or equal to 0.50 and 1-year mortality Rate of at least 30% to 60%. Weessler found that resting PEP / LVET exceeded 0.42, 5-year mortality