Publications by authors named "Yan Zhen-Xian"
Transient ulnar artery compression facilitates transradial access.
Medicine (Baltimore)
November 2016
Background: Unsuccessful radial artery puncture is one of the important causes of transradial procedure failure. Ulnar artery compression made the radial artery pulse stronger. Whether it would make transradial access easier, however, is uncertain.
View Article and Find Full Text PDFThe overall safety and efficacy of transradial coronary intervention (TRI) versus coronary artery bypass grafting (CABG) for patients with unprotected left main (UPLM) disease and/or multivessel coronary disease (MVD) presenting with acute coronary syndrome (ACS) have not been established. Consecutive patients with ACS undergoing TRI with drug-eluting stent (n = 1431) or CABG (n = 651) for UPLM and/or MVD were included. A propensity-score matching was performed to adjust for differences in baseline characteristics between the 2 cohorts, yielding 524 pairs of matched patients.
View Article and Find Full Text PDFObjective: To evaluate the effect of exogenous creatine phosphate (CP) on myocardial injury after percutaneous coronary intervention (PCI).
Method: Four hundred patients were divided to receive conventional therapy (control group) or 3-day intravenous infusion of CP after PCI (CP group). Levels of creatine kinase MB (CK-MB) and troponin I (TnI) were measured before and on postprocedural day 3.
Article Synopsis
- The study compares early radial artery injury after first-time transradial coronary intervention (TRI) versus repeat TRI using ultrasound biomicroscopy (UBM) in 1116 patients.
- It found that the radial artery diameter and intimal thickness significantly decreased more after repeat TRI compared to first TRI, indicating greater injury in the repeat group.
- The results suggest that repeated TRI procedures can lead to more extensive damage to the radial artery, which may affect future procedures and the artery's viability as a bypass conduit.
Article Synopsis
- The study aimed to evaluate the impact of abnormal fasting plasma glucose (FPG) levels on patient outcomes in older men and women who experienced acute myocardial infarction (AMI).
- A total of 1854 older patients were divided into four FPG categories: hypoglycemic, euglycemic, mildly hyperglycemic, and severely hyperglycemic, with mortality rates tracked during hospitalization and over three years.
- Results indicated that while men showed a higher risk of mortality related to low FPG levels, no significant differences in mortality were found between genders overall; abnormal FPG levels were consistently linked to higher mortality rates regardless of sex.
Background: The optimal antithrombotic strategy for patients with chronic oral anticoagulation undergoing coronary stenting is unknown. Our study conducted a meta-analysis of 9 previous trials comparing the safety and efficacy of triple antithrombotic regimen (including warfarin, aspirin and clopidogrel) to non-triple antithrombotic regimens in those patients.
Methods: Two investigators independently searched Pubmed, Ovid and Elsevier databases for all reported studies, and yielded 9 (of 242 potentially relevant) articles, published before July 2009, enrolling 5181 patients, follow-up period ranging from 1 month to 18 months.
Background: Radial artery spasm (RAS) is the most common complication in transradial coronary angiography and intervention. In this study, we designed to investigate the incidence of RAS during transradial procedures in Chinese, find out the independent predictors through multiple regression, and analyze the clinical effect of RAS during follow-up.
Methods: Patients arranged to receive transradial coronary angiography and intervention were consecutively enrolled.
Background: The optimal antithrombotic strategy for patients with atrial fibrillation (AF) undergoing drug-eluting stent (DES) implantation is unknown.
Methods And Results: The 622 consecutive AF patients undergoing DES implantation were prospectively enrolled. Among them, 142 patients (TT group) continued triple antithrombotic therapy comprising aspirin, clopidogrel and warfarin after discharge; 355 patients (DT group) had dual antiplatelet therapy; 125 patients (WS group) were discharged with warfarin and a single antiplatelet agent.
Background: In recent years, the radial artery (RA) has become an alternative vascular access site for percutaneous coronary procedures, and the ulnar artery (UA) is another possibility. The objective of this study was to investigate the anatomy of the forearm arteries with ultrasound (US) and to evaluate the effect of the anatomy of the right RA (RRA) on the outcomes of transradial coronary procedures.
Methods And Results: The 638 patients undergoing transradial coronary procedures were examined with US for measurement of the diameters of the forearm arteries and determination of their anatomical abnormalities before the procedures.
Objectives: This study examines whether patient resistance to clopidogrel is associated with long-term thrombotic events after elective coronary drug-eluting stent (DES) implantation.
Methods: We prospectively enrolled 386 patients with stable angina who received elective percutaneous coronary intervention (PCI) with DES. Before the procedure, platelet reactivity was measured by light transmittance aggregometry (LTA) at baseline and approximately 24 h after the 300 mg loading dose of clopidogrel.
Background: Transradial coronary intervention has been widely used because of its effects in lowering the incidence of complications in vascular access site and improving patient satisfaction compared to the femoral approach. This study aimed to investigate the safety and feasibility of transradial approach for primary percutaneous coronary intervention (PCI) in elderly patients with acute myocardial infarction (AMI).
Methods: A total of 103 consecutive elderly patients (age = 65 years) who were diagnosed as having AMI were indicated for PCI.