Objective To compare the incidence of MACE and predictors in patients with unprotected left main coronary artery disease (ULMCAD) after percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG). To establish a risk stratification to guide treatment and prognosis of patients with ULMCAD who underwent PCI. Methods The incidence of MACE in 201 patients with ULMCAD who underwent PCI or CABG was compared, retrospectively. The predictors of MACE of the two groups were obtained by logistic regression analyses. The predictors of MACE of the PCI group were assigned and stratified. The validity of the risk stratification on the prediction of MACE was verified in a new group of 126 patients with ULMCAD who underwent PCI. Results The incidence of MACE of PCI and CABG group was 16% and 11.9%, respectively. Logistic regression analyses showed that LVEF, diabetes mellitus and Syntax score were related to MACE in PCI group, while age, LVEF and renal function insufficiency were related to MACE in CABG group. The verification results showed a good predictive value of the risk stratification based on LVEF, diabetes mellitus and Syntax score on the incidence of MACE. Conclusions PCI treatment in patients with ULMCAD is feasible and has a good long-term outcome. The risk stratification in accordance with LVEF, diabetes mellitus and Syntax score has good predictive value on the incidence of MACE.

ObjectiveTo investigate the diagnostic value of early undiscovered nodosity metastasis by hepatic artery Doppler flow imaging perfusion index(DPI) and contrast-enhanced ultrasound (CEUS).MethodsSix hundred and fifty-five patients were collected who suffered with malignant tumor which is not from liver and without liver metastasis.DPI were detected in all patients first,and then patients of higher DPI were taken CEUS and contrast-enhanced CT(CECT).All the diagnosis were confirmed by operation,biopsy under ultrasound or follow-up.ResultsAfter 6 months' follow-up,there were 19 patients found liver metastasis in 562 patients without increase of DPI,and 75 patients found liver metastasis in 93 patients with increase of DPI(DPI＞30％).The negative and the positive predictive value were respectively 96.6％and 80.6％.Seventy-five patients were found 132 liver metastasis who were given CEUS,and 60 patients were found 94 liver metastasis who were given CECT,there was significance difference between them( P ＜0.01).ConclusionsThe combination of DPI and CEUS can get higher detection rate of liver metastasis.