岭南心血管病（英文版）杂志

Objective Forty cases of IAMI were examined with coronary angiography in order to study the relationship of the vessels with the ECG of IAMI. Methods For coronary angiography Judkin' s method was used; IAMI was diagnosed by the 1979WHO's standard of ISHD and ECG was separately measured by two doctors. Results Most of IAMI with polybranch coronary or its collateral disease (32.5％and 42.5％ ) and only 10 cases (25％) with single branch coronary disease, whose ECGs were untypical.Conclusion IAMI with single-branch coronary disease might express as mild symptoms and have no typical ECG change. While typical ECG change emerges, the coronary artery always showed poly-branch disease or collateral branch obstruction and the disease would be advanced. It is important to pay more attention to the cases of IAMI without classic ECG change so as to give diagnosis and treatment them in time.

作者： 刊期： 2000年第01期

6 371 cases of acute myocardial infarction from 1984 to 1992 in Guangdong Province are reported in this article. The results show that the prevalence rate of acute myocardial infarction (AMI)has been increasing. The anterior walls are involved more often than the inferior ones are. The first symptom in 87.4％ of cases is pectoral pain. The most common complications are arrhythmia, heart failure and cardiac shock successively occurring in order. The mortality rate is 19.9％. The predominant causes of death is pump failure.

作者： 刊期： 2000年第01期

Objective The study will explore effects of the autoantibodies against AT1 receptor and angiotensin Ⅱ on the refractory hypertension. Methods Seventy-seven patients (46 men and 31 women) with essential hypertension were divided into groups of refractory hypertension (RH) and hypertension (HT) according to the 1999 WHO -ISH Guidelines for the Management of Hypertension. Forty normotensives (22 men) were recruited as controls.The mean age was 54. 3 ± 13 years old in RH group,53.5±9 years old in HT group and 51.2±11.9years old in normotensives (NT) group. The mean blood pressure was 154.2 ± 9.4/98.4 ± 8.2 mmHg in RH group and 130.1 ±7.6/80.5 ±6.7 mmHg in HT group after combination drug therapy of hypertension for 4 weeks. Blood pressure in NT group was 120. 8 ± 11.7/76. 4 ± 7.2 mmHg. The epitope of the 2nd extracellular loops of AT1 receptor was synthesized and used as antigens to screen the autoantibodies by ELISA. Plasma angiotensin (Ang) Ⅱ were examined by a radioimmunoassay. Results The autoantibodies against AT1 receptor were positive in 18 (46. 15% ) patients with RH, in 4 (10. 5 % ) hypertension and in 3 (7.5 % ) normotensives, P ＜ 0.01. Ang Ⅱwas 57.01 ± 52.63 pmol/L in patients with RH. Both the autoantibodies positive and the Ang Ⅱ increasing were 4 (10. 3 %) cases, both normal were 7 (17.9% ) cases, the autoantibodies positive or Ang Ⅱ in creasing was all of 14 (35.9 % ) cases (χ2 =0. 09,P ＞ 0. 05) There was no relationship between the autoantibodies against AT1 receptor and the angiotensin Ⅱ in refractory hypertension. Conclusion The autoantibodies against AT1 receptor and Ang Ⅱ might be two independent factors in developing of refractory hypertension. The findings suggest that AT1 receptor antagnist used in the treatment of refractory hypertension might have an important value.

作者： 刊期： 2001年第02期

Heart rate variaty (HRV) of 85 cases with AMI was observed in the early phase after onset and rehabilitation phase at first month and sixth month, and was contrasted with six time threshold indices of 111 cases with coronary heart disease and that of 35 normal control. We found the HRV of AMI was apperantly lower in the acute phase than that of coronary heart disease and normal controls. HRV recovered gradually with inclining to be stable after half a year, but it was still lower than that of controls. Low HRV in early phase of AMI suggested the poor prognosis.

作者： 刊期： 2000年第01期

Objective The coronary anatomic feature and development after thrombolysis in acute myocardial infarction (AMI) were studied.Mehtods 100 patients with AMI received urokinase and strepokinase. Coronary angiography (CAG) was performed at 90 minuts and again at 3 to 4 weeks.Results Successful thrombolysis occurred in 60 cases,but failed in 40. The ratio of reperfusion was 60％.CAG showed there were residual thrombi in 84 patients (84％) and complete coronary occlusion in 40(40％ ).Angiography at 3 to 4 weeks after thrombolysis showed the stenosis worsened in 8 patients and improved in 10.Conclusion AMI is caused by sudden coronary thrombotic occlusion and can be repeffused by using thrombolytic agent or mechanical methods. Thrombolytic agents usually can not resolve thrombi completely. So percutaneous transluminal coronary angiography (PTCA) is recommended as an important method to improve serious residual stenosis.

作者： 刊期： 2000年第01期

Objective To observe the relationship between serum creatine kinase isoenzyme MM sub-bands (CKMM3/MM1 ratio) and the gradation of coronary stenosis and provide a simple, reliable, and economical method for identifying high-risk unstable angina pectoris (UAP). Mehtods Blood samples were drawn at different time after onset of chest pain in 21 patients with UAP and only once in 20 each volunteers for control. CKMM3/MM1 ratio was detected by nonserial buffer agarose gel electrophoresis. CKMB and CK were observed by velocity method. An emergent coronary arteriography was performed as soon as patients were admitted into hospital. Results Patients with UAP were divided into two subgroups:patients with elevated serum enzyme [P( + )] and patients with normal serum enzyme [P( - ) ] according to CKMM3/MM1 ratio ＜ 0.5. Patients with UAP(+)had higher serum CKMM3/MM1 ratios from 0.5 to 12hrs and serum CKMB from 2 to 12 hrs than those with UAP( - ) and control ( P ＜ 0.05) . Serum enzyme concentrations of patients with UAP whose coronary lumen had 90％ or more than 90％ stenosis were significantly higher than those whose coronary lumen had less than 90％ stenosis (P＜0.01) . AnyCKMM3/MM1 ratio was less than 1.0 and CK within the normal range in patients with UAP( + ) group. Conclusions CKMM3/MM1 ratios in patients with UAP can reflect severity of myocardial ischemia. Serum CKMM3/MM1 ratio provides a simple, reliable, and economical method for identifying high-risk UAP.

作者： 刊期： 2000年第01期

Objective The current study was designed to investigate the features of a family with familial hypercholesterolemia(FH). Methods Twenty members of three generations in a family with FH were enrolled in the study. The data collected were from clinical observation and subjected to pedigree analysis.Results The proband was a 41 years old male who suffered from angina pectoris with multi-vessel stenosis of coronary artery at the age of 40. Among 20 members,8 individuals were demonstrated with hypercholesterolemia in this family with the total incidence of 40％[54.5％ (6/11) in male and 22.2％ (2/9) in female ]The serum total cholesterol level was elevated in childhood from 7.1 to 10. 8 mmol/L and tended to be raised with increasing age. In addition, the level of total cholesterol was found to be elevated both in a monozygote twin brothers and their offspring in the family.Conclusion FH appears to be a hereditary disease of autosomal dominance inheritance and the outcome of FH patients with coronary heart disease seems to be poor in prognosis.

作者： 刊期： 2000年第01期

作者： 刊期： 2012年第01期

Background Myocardial blood flow(MBF) can be quantified with myocardial contrast echocardiography (MCE) during a venous in fusion of microbubble. A minimal MBF is required to maintain cell membrane integrity and myocardial viability in ischemic condition. Thus, we hypothesized that MCE could be used to assess myocardial viability by the determination of MBF. Methods and Results MCE was performed at 4 hours after ligation of proximal left anterior descending coronary artery in 7dogs with constant venous infusions of microbubbles.The video intensity versus pulsing interval plots derived from each myocardial pixel were fitted to an exponential function: y=A(1-e-βt), where y is Ⅵ at pulsing interval t, A reflects rnicrovascular cross- sectional area (or myocardial blood volume), and β reflects mean myocardial microbubble velocity. The product of A · β represents MBF. MBF was also obtained by radiolabeled microsphere method servered as reference.MBF derived by radiolabeled microsphere- method in the regions of normal, ischemia and infarction was 1.5±0.3, 0.7±0.3, 0.3±0.2mL·min-1· g-1respectively. The product of A · β obtained by MCE in those regions was 52. 46 ± 15.09, 24.36 ± 3.89, 3.74± ± 3.80 respectively. There was good correlation between normalized MBF and the normalized A · β (r =0. 81, P = 0. 001 ). Conclusions MCE has an ability to determine myocardial viability in myocardial in farction canine model.

作者： 刊期： 2001年第02期

Hypertension survey was carried out in Guangdong Province in 1991, according to a national sampling survey program. 42 899 urban and rural men and women aged ≥ 15 were involved in the survey. The results revealed that the standardized prevalence rate of hypertension was 8.99％ (definite 4. 24％, borderline 4.75％ ) . It was higher in men than in women, in urban than in rural samples.Compared with the survey in 1979, the prevalence rate increased by 90％ and the curve of aged- prevalence rates shifted leftward. This article also discuss the possible factors that lead to the increase of hypertension.

作者： 刊期： 2000年第01期