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Objective To investigate the relationship between coronary myocardial bridge and the symptoms of the patients and its related factors, and to provide evidence for rational treatment. Methods Sixty-one patients di-agnosed as myocardial bridge by coronary angiography and the examination of nuclide myocardial perfusion imaging were recruited and their clinical data was analyzed retrospectively. The patients were divided into ischemic group and non-ischemic group according to the nuclide imaging, and were followed up on the compliance of β-blocker taking and the symptoms. Results Among the 61 patients ,7 patients were ischemic,and the others were non-ischemic. There was no significant difference on symptoms between the two groups (P>0.05). The prevalence of Grade Ⅲ narrowing was higher in ischemic group (6/7) than that in the non-ischemic group (18/54) (χ~2=5. 009, P = 0.024) ,and the ischemic patients with Grade Ⅲ narrowing were older than those in the non-ischemic patients. Two patients in the ischemic group did not insist on taking β-blocker and their symptoms did not change,40 patients in the non-ischemia group did not insist on taking β-blocker,of which 33 patient's symptoms were improved. The symp-toms of all patients with good compliance of β-blocker taking were improved. Conclusions The symptoms of some patients are unrelated with myocardial bridge and treatment is not recommended.
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7% (OR=4.640,95%CI=1.064 to 20.239,P=0.041) were the high risk factors for myocardial ischemia in patients with type 2 diabetes.Conclusion Poor control of the 4 factors is the high risk factor for myocardial ischemia in patients with type 2 diabetes.Overall and effective control of such risk factors can decrease the incidence of myocardial ischemia and improve its treatment.
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Objective To discuss the clinical value of 99Tcm-sestamibi(99Tcm-MIBI) myocardial perfusion imaging on detecting myocardial ischemia in children with Kawasaki disease(KD) at convalescence period.Methods Twenty-one children wih KD at convalescence period were divided into 2 groups according to results of echocardiography.Four cases with coronary artery dilation,17 cases without coronary artery dilation.All cases accepted dipyridamole stress myocardial perfusion imaging.These patients who had positive results were given rest myocardial perfusion imaging again next day.Results Among 21 cases,9 cases(42.8%) were positive in perfusion imaging.Four cases with coronary artery dilation showed myocardial ischemia in different degree detected by myocardial perfusion imaging.Among 17 cases without coronary artery dilation,5 cases(29.4%) were positive.Conclusions Compared to echocardiography,99Tcm-MIBI myocardial perfusion imaging can objectively evaluate the location,extent and degree of myocardial ischemia of children with KD.It will be a routine test in observing its phase development.