Practice of Applying Big Data for Prevention of Web Registration Traffickers / 医学信息学杂志

Based on Sun Yat-Sen University Cancer Hospital’s practice of applying big data for prevention of registration traffickers,the paper analyzes the behavioral characteristics of technology-based registration traffickers'malicious occupation from the aspects of abnormal registration,abnormal withdrawal,abnormal grab and abnormal user binding,makes the corresponding technical plans and countermeasures,so as to limit the malicious registration of registration traffickers using the reservation system and guarantee the medical resources can be distributed to patients fairly and impartially.

Association of myocardial bridge in the left anterior descending coronary with coronary atherosclerosis proximal to the bridge site in diabetic patients / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate whether myocardial bridging (MB) is an independent risk factor for coronary atherosclerosis proximal to the bridge site in the left anterior descending coronary artery (LAD) in diabetic patients.</p><p><b>METHODS</b>From March 2011 to December 2012, 9862 patients with suspected coronary disease underwent coronary computed tomography angiography (CCTA) using a dual-source CT scanner. The baseline clinical characteristics (age, gender, smoking history, presence of hypertension, dyslipidemia, diabetes mellitus, family history of heart attack and body mass index) and the results of CCTA were reviewed. Two radiologists evaluated the MB and coronary atherosclerosis stenosis (CAS) over 50% in the LAD and made a diagnosis by consensus. Significant independent risk factors for CAS were investigated by logistic regression analysis.</p><p><b>RESULTS</b>Of the 2345 patients identified to have diabetes mellitus, 1373 had MB, among whom 827 had coronary atherosclerosis proximal to the bridge site; 972 of the diabetic patients were free of MB, among whom 254 had coronary atherosclerosis at the equivalent site. None of the patients had CAS in the tunneled segment. After adjusted for clinical data, logistic regression analysis showed that MB in the LAD was significantly correlated with coronary atherosclerosis in the proximal LAD in diabetic patient (OR=3.91) and non-diabetic patients (OR=2.69) (P<0.05).</p><p><b>CONCLUSION</b>In diabetic patients, atherosclerosis occurred frequently in the segment proximal to MB in the LAD, and MB in the mid-LAD is an independent risk factor for CAS in the proximal LAD.</p>