نتایج جستجو برای: coronary stenosis

تعداد نتایج: 244216  

قربانی یکتا, بتول, محققی, عباس, پناهی, علیرضا, کمال هدایت, داریوش,

Background: Left main coronary artery (LMCA) stenosis is a leading cause of mortality and morbidity in many countries. Metabolic syndrome (MS) is a risk factor for coronary artery disease (CAD). The effects of MS on left main coronary artery stenosis are not well-defined. The aim of this study was to examine the effects of MS on left main coronary artery stenosis.Methods: A total number of 495 ...

Journal: :the journal of tehran university heart center 0
shapour shirani tehran heart center, tehran university of medical sciences, tehran, iran. madjid shakiba radiology research center, tehran university of medical sciences, tehran, iran. maryam soleymanzadeh tehran heart center, tehran university of medical sciences, tehran, iran. mohammad ali boroumand tehran heart center, tehran university of medical sciences, tehran, iran. seyed hesameddin abbasi tehran heart center, tehran university of medical sciences, tehran, iran. maryam sotoudeh anvari tehran heart center, tehran university of medical sciences, tehran, iran.

background: the incidence of stroke after coronary artery bypass grafting (cabg) is between 0.9% and 6.7%, which significantly increases in-hospital and out-hospital costs. this study was designed to evaluate the prevalence of significant carotid stenosis and its risk factors in cabg. methods: in total, 2044 consecutive patients undergoing elective cabg were investigated through a pre-operative...

ریاضی, علیرضا, نجارزادگان, محمدرضا, نوق, حسین,

Introduction: Renal artery stenosis is the most prevalent disease of renal artery and has an important role in making hypertension and renal atrophy. Since in previous researches, despite high frequency of risk of cardiovascular disease in Iran, there did not exist any general research investigating risk factors of coronary artery disease and incidence of contemporary renal artery stenisis, ...

Journal: :the journal of tehran university heart center 0
mohammad hasan namazi cardiovascular research center/shaheed beheshti university of medical sciences, tehran, iran. morteza safi cardiovascular research center/shaheed beheshti university of medical sciences, tehran, iran. hassan kamalzadeh cardiovascular research center/shaheed beheshti university of medical sciences, tehran, iran. reza karbasi cardiovascular research center/shaheed beheshti university of medical sciences, tehran, iran.

a 55-year-old man referred for cardiac resynchronization therapy (crt) due to severe heart failure. a severe stenosis in the coronary sinus vein after the posterior branch disallowed the insertion of the lead. nevertheless, the stenosis was dilated and the left ventricle (lv) lead was implanted in the lateral marginal branch.

Journal: :the journal of tehran university heart center 0
morteza safi modarres hospital, cardiovascular research center, shaheed beheshti university of medical sciences, leila nojoomizadeh modarres hospital, cardiovascular research center, shaheed beheshti university of medical sciences, maryam taherkhani modarres hospital, cardiovascular research center, shaheed beheshti university of medical sciences, mohamadreza motamedi modarres hospital, cardiovascular research center, shaheed beheshti university of medical sciences, habibollah saadat modarres hospital, cardiovascular research center, shaheed beheshti university of medical sciences, mohammad hasan namazi modarres hospital, cardiovascular research center, shaheed beheshti university of medical sciences,

background: early clinical and retrospective angiographic evaluations indicated that in patients with acute myocardial infarction (mi), vulnerable plaques most often represented a mild luminal stenosis. more recent studies drawing upon prospective angiograms, however, have demonstrated that in majority of patients with acute mi, the underlying stenosis is significant.   methods: twenty-eight pa...

Journal: :iranian journal of radiology 0
xiao zhi zheng department of ultrasound, affiliated hospital of nantong university (the first people’s hospital of yancheng), yancheng, p.r china bin yang department of ultrasound, jinling hospital, nanjing university school of medicine, nanjing city, p.r china; department of ultrasound, jinling hospital, nanjing university school of medicine, nanjing city, p.r china. tel: +8625-80861314, fax: +8625-80863136 jing wu department of ultrasound, affiliated hospital of nantong university (the first people’s hospital of yancheng), yancheng, p.r china

conclusions the coronary sinus flow per minute is the most accurate parameter among the three echocardiographic parameters mentioned above for the assessment of significant stenosis of the coronary artery. results flow (ml/minute), flow/lvm (ml/minuteg) and lv (d-s) mass a-l all correlated significantly with the percentage of stenosis (r = -0.64, p < 0.001; r = -0.47, p < 0.001; r = -0.56, p < ...

Journal: :research in cardiovascular medicine 0
farshad shakerian cardiovascular intervention research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran hamidreza sanati cardiovascular intervention research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran; cardiovascular intervention research center, rajaie cardiovascular medical and research center, vali-asr st., niayesh blvd., tehran, ir iran. tel: +98-2123922178, fax: +98-2122055594 reza kiani cardiovascular intervention research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran naser khezerlou cardiovascular intervention research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran ata firouzi cardiovascular intervention research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran ali zahedmehr cardiovascular intervention research center, rajaie cardiovascular medical and research center, iran university of medical sciences, tehran, ir iran

conclusions presence of cae in patients with cas increases its cardiovascular event rate. isolated cae is not a benign finding and mi can occur. risk factors of cae are similar to cas, but c/s is more associated with cae than cas. dm is seen in cae patients less than cas. results hypertension (htn), dyslipidemia (dlp), and male sex were matched in both groups without significant difference. cig...

Journal: :iranian journal of radiology 0
reza hanifehpour advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, iran; advanced diagnostic and interventional radiology research center, medical imaging center, tehran, iran. tel: +98-9143912450, fax: +98-2166945117 marzieh motevalli advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, iran; department of radiology, rajaei cardiovascular medical and research center, iran university of medical sciences, tehran, iran hossein ghanaati advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, iran mona shahriari advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, iran mounes aliyari ghasabeh advanced diagnostic and interventional radiology research center (adir), tehran university of medical sciences, tehran, iran

conclusion we conclude that coronary calcium scoring provided useful information in the management of patients. in cacs less than 100, it has a npv of 87% in excluding significant stenosis in patients with the risk of cad but it does not have enough diagnostic accuracy for surely excluding coronary stenosis, so we should perform a combination of cacs and coronary ct angiography for patients. re...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
darioush kamal hedayat hossein karim

background: coronary disease is the most common cause of death in the world. because of common risk factors, atherosclerotic stenosis of coronary and carotid arteries occurs together. this study evaluated the prevalence of carotid stenosis in diabetic candidates for angiography methods: in a cross-sectional study, 152 diabetic candidates for angiography referred to cardiology clinic of shariati...

Abbas Zavarehee, Hossein Ali Basiri, Ladan Hosseini Gohari, Mohsen Firoozray, Romina Karimzadeh Ghassab,

  Abstract   Background: Recently, small dense low density lipoprotein (sdLDL) has been   highlighted as a new risk factor for the coronary artery disease (CAD).Small dense   LDLs are believed to be atherogenic since these particles are taken up more easily by   arterial wall. They are readily oxidized and have reduced affinity for low density   lipoprotein (LDL) receptor and increased affinity...

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