Qing-xiang Li

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BACKGROUND We developed a new combined strategy of thrombus aspiration plus intra-infarct-related artery (IRA) bolus administration of tirofiban via the aspiration catheter in patients with ST-segment elevation myocardial infarction (STEMI). This strategy can reduce the distal embolism and achieve highly localized concentrations of tirofiban, which can(More)
BACKGROUND Emergency medical service plays a key role in the early recognition and treatment of ST-elevation myocardial infarction (STEMI), but studies indicate that the patients experiencing STEMI symptoms often fail to call an ambulance as recommended. This study aimed to examine the current ambulance transport frequency and ascertain predictors and(More)
OBJECTIVE To determine the relationship between prehospital delay time (PDT) and other associated factors on mortality in patients with acute myocardial infarction. METHODS We retrospectively analyzed factors associated with mortality in 580 patients with acute myocardial infarction presented to the Emergency Ward and Emergency Intensive Care Unit (EICU)(More)
Two copper(II) complexes [CuL(1)Cl]ClO(4) and [CuL(2)MeCN](ClO(4))(2)xH(2)O were synthesized (L(1)= 1-(benzimidazole-2-ylmethyl)-1,4,7-triazacyclononane, L(2)= 1,4-bis(benzimidazole-2-ylmethyl)-1,4,7-triazacyclonone). The benzimidazole groups were N-substituents of tacn, and the complexes are more stable than their parents. They are able to catalyse the(More)
PURPOSE The aim of this study was to explore the treatment strategies for patients with obstructive colorectal cancer at different sites. METHODS Treatment strategies were adopted according to the location of colorectal cancer and the condition of the patients when they were admitted to the hospital. Among a total of 134 patients, 29 patients were(More)
BACKGROUND A growing volume of data suggests that simple manual thrombus aspiration followed by direct stenting improves myocardial reperfusion and clinical outcome compared with conventional primary PCI, but there is still limited data comparing the in vivo performance among different devices. This study aimed to compare the efficacy and operability of(More)
OBJECTIVE To investigate blood lead levels (BLLs) and influencing factors of BLLs among preschool children living in towns of Hunan Province. METHODS A total of 2 044 preschool children (1,108 boys and 936 girls) from towns of 12 regions in Hunan Province were enrolled by a cluster sampling between September 2008 and June 2009. The average age of the(More)
OBJECTIVE To investigate whether thrombus aspiration plus intra-infarct-related artery bolus administration of tirofiban via the aspiration catheter is superior to thrombus aspiration alone in improving myocardial perfusion in patients with ST-elevation myocardial infarction (STEMI) undergoing primary angioplasty. METHODS In this single center(More)
OBJECTIVE To investigate the relationship of associating the polymorphisms of CYP11B2 -344C/T and Hind III restriction site on Y chromosome with essential hypertension. METHODS This study enrolled 654 patients with essential hypertension and 386 healthy subjects as control group. The genomic DNA was extracted from blood leukocytes. The DNA segments of(More)
A new fluorenyl-substituted dioxotetraamine salicylaldehyde Schiff-base ligand (L1) has been synthesized by the non-template 1 + 2 condensation of ligand 6-(9-fluorenyl)-1,4,8,11-tetraazaundecane-5,7-dione (L) with salicylaldehyde. From reduction of L1 with an excess of NaBH4, a ditopic dioxotetraamine ligand (L2) has been obtained. The copper(II) complex(More)