Attenuated plaque is associated with plaque prolapse accompanied by cardiac enzyme elevation after drug-eluting stent implantation.

Objectives: This study aimed to evaluate the relationship between grayscale intravascular ultrasound-attenuated plaque (AP) and poststenting plaque prolapse (PP) as well as their influence on creatine kinase-myocardial band (CK-MB) elevation after drug-eluting stent (DES) implantation.

Background: The relationship between baseline AP and poststenting PP and their impacts on percutaneous coronary intervention (PCI) are not well known.

Patients And Methods: A total of 141 single, native, de-novo coronary lesions in 141 patients with normal pre-PCI CK-MB levels who underwent intravascular ultrasound before and after DES implantation were studied.

[Effects of diagnostic protocols on etiology and outcome in immunocompromised host with pulmonary infiltrate].

Objective: To explore the effects of diagnostic protocols on etiology and outcome in immunocompromised host (ICH) with pulmonary infiltrate.

Methods: For this historic control study, ICH with acute respiratory failure (ARF) were eligible as study group (n = 65) in 2009 while another ICH cohort was selected as control group (n = 45) in 2007. The protocol consisted of four parts: judgment possible site, determining probable etiology, checking and feedbacks on laboratory test in 12 hours and reassessment and adjustment treatment in 48-72 hours.

[Reasons for failed electrocardiographic identification of the infarct-related artery in patients with ST-elevation acute myocardial infarction].

Objective: The infarct-related artery (IRA) could not always be identified by electrocardiogram (ECG). In the present study, we attempted to explore the reason for failed IRA identification by ECG based on the comparison between ECG records and coronary angiographic findings.

Methods: All 18-lead ECG records were compared with respective angiographic findings in 1024 consecutive patients with ST elevation myocardial infarction (STEMI) between October 2004 and July 2009.

[Efficiency and safety of thrombus aspiration plus intra-infarct-related artery administration of tirofiban during primary angioplasty].

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 retrospective study, 108 patients with STEMI who underwent angioplasty after thrombus aspiration plus intra-infarction related artery 500 µg tirofiban administration, with subsequent 12-hour intravenous infusion of 0.1 µg×kg(-1)×min(-1) after angioplasty (thrombus aspiration + tirofiban group) and 108 matched control patients with STEMI who underwent angioplasty after thrombus aspiration (thrombus aspiration group).

[Long-term follow-up after drug-eluting stents for patients with ST-segment elevation myocardial infarction: a single center study].

Objective: To evaluate the long-term efficacy and safety of DES in the setting of primary PCI in our single center.

Methods: From September 2004 to November 2008, 464 patients undergoing primary PCI for STEMI were included at the 28th Division in Beijing Anzhen Hospital. The adverse events were compared among different types of DES.

Thrombus aspiration plus intra-infarct-related artery administration of tirofiban improves myocardial perfusion during primary angioplasty for acute myocardial infarction.

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 improve myocardial reperfusion without increasing the risk of bleeding. The aim of this study was to investigate whether this combined strategy is superior to thrombus aspiration alone in improving myocardial perfusion in patients with STEMI undergoing primary angioplasty.

Comparison of Diver CE and ZEEK manual aspiration catheters for thrombectomy in ST-segment elevation myocardial infarction.

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 thrombus aspiration by the Diver CE (Invatec, Brescia, Italy) and ZEEK (Zeon Medical Inc., Tokyo, Japan) aspiration catheters in ST-segment elevation myocardial infarction (STEMI) and their impact on 3-month outcome.

[Molecular characterization of vancomycin-resistant Enterococci].

Objective: To investigate the homology and resistant mechanism of vancomycin-resistant Enterococci (VRE) isolates.

Methods: A total of 9 VRE isolates were collected from 2006 to 2007 at PUMC hospital. The susceptibility of these isolates to 10 different antibiotics including vancomycin was tested by E-test.