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 Wysłany: Pon 10:12, 21 Mar 2011 Temat postu: Normal resting electrocardiogram analysis of 18 ca |
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Normal resting electrocardiogram analysis of 18 cases of patients with coronary heart disease
No ischemic ECG performance. This Division in January 2001 in respect 一 December 2002 found between the performance of the above clinical manifestations of 18 patients, echocardiography, treadmill test, coronary angiography results were analyzed to improve understanding of such patients. Reported below. 1 1.1 General Information l8 clinical cases were confirmed coronary artery disease by coronary angiography. Male 12 cases (66.7%), female 6 cases (33.3%); aged 45-80 years, mean 53.8 years; smokers l2 cases; l0 cases of obesity; which patients with hypertension l0 cases; 4 cases of type 2 diabetes; the longest duration of l5 years and the shortest in 3 months, an average of 5.8 years. 1.2 l8 patients had clinical manifestations of chest pain performance l0 cases of simple activities which attack, 5 patients only when the onset of rest, rest and activity in 3 cases were seizures. Every chest pain lasted for 1-20rain, the average 5min or so. 1.3 The blood laboratory tests were normal. L0 patients with dyslipidemia. Alcohol increased bile pigsty which 5 cases, 2 cases of elevated triglycerides, both of which increased in 3 cases, 5 cases of combined elevated low-density lipoprotein,[link widoczny dla zalogowanych], high density lipoprotein decreased in 4 cases. 1.4 Echocardiography normal in 5 cases, 11 cases of left ventricular diastolic dysfunction, wall motion abnormalities in 2 cases, 1 case with lower EF values. l8 patients with no valvular lesions. Exercise treadmill test was positive in 1.5 l5 cases were negative in 3 cases. 1.6 l8 cases of coronary angiography were varying degrees of coronary artery stenosis: where l2 patients with single vessel disease,[link widoczny dla zalogowanych], double vessel disease in 5 patients, 3 lesions in 1 case, both the degree of stenosis> 70%,[link widoczny dla zalogowanych], no 100% occlusion lesions, there is collateral circulation in 2 cases. 2 discusses the clinical work, ECG diagnosis of coronary heart disease is the most convenient and efficient means of coronary heart disease about 80% of ischemic resting electrocardiogram performance of ECG in the diagnosis of coronary heart disease that have a certain value. But there are coronary heart disease of about 2o% of its normal resting electrocardiogram, could easily lead to clinical misdiagnosis. Analysis of this part of the patients with normal ECG reasons: (1) the limitations of mild coronary artery stenosis, myocardial ischemia lighter, normal resting electrocardiogram. (2) branches of the coronary artery between the heart wall is rich in small communicating branches. When the coronary artery stenosis caused by atherosclerosis or occlusion, myocardial oxygen consumption increased, the occurrence of ischemia and hypoxia, blood vessels at both ends of the pressure gradient changes, the traffic branch expansion, opening up blood vessels, the establishment of effective collateral circulation,[link widoczny dla zalogowanych], can be expressed as the normal resting electrocardiogram. Therefore, the clinical risk factors on the presence of suspected coronary artery disease with normal ECG, normal ECG should not be easily excluded. Through the above results of echocardiography showed that most patients in the left ventricular diastolic dysfunction, it has some echocardiographic screening value of treadmill test the value of the group of patients has long been recognized. Coronary angiography is the best choice for diagnosis of such patients. Received 2O04-08-29 (edit Hess) Ultrasound diagnosis of left atrial cloud-like shadow of the clinical significance of sound Guokun Xia Wang Zhong, Liu Cheng Lu Guilin University School of Medicine first affiliated hospital of Shihezi, Shihezi 832008 Key words Left atrial ultrasonic mist-like acoustic shadow Diagnosis CLC: R540.45 Document code: A Article ID :1001 -7585 (2005) 02-0157-02 white hospital in January 2000 on March 一 2O04 by color Doppler echocardiography was applied to measure the 2l cases of left atrial cloud-like acoustic shadow of the patients. In this paper, imaging features in patients with ultrasound diagnosis and clinical manifestations of left atrial shadow value of cloud-like sound and its clinical significance. 1 Data and methods of this group of 2l patients were hospital out-patient and hospital patients. Including 8 males and females l3, aged 22-73 years, mean 46.2 years old. l5 patients with rheumatic mitral stenosis, 3 cases of dilated cardiomyopathy, 3 cases of coronary heart failure (ischemic cardiomyopathy). 21 cases in 11 patients with atrial fibrillation, 4 patients had history of cerebral infarction, 3 patients had history of peripheral vascular embolism. GE, syst mortar IlFive using color Doppler echocardiography device, the probe frequency of 1.7MHz, the patient supine and left lateral position, were detected by conventional methods. 2 Results All patients were significantly expand the left atrium and left the room dense dot appears hypoechoic shadow, from time to time change its density and shape has nothing to do with the cardiac cycle,[link widoczny dla zalogowanych], was 9 cases of thrombosis of left the room see a clear echo, l2 left ventricular also significantly expanded. 3 Discussion of left atrium Left atrial
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