Abstract:
RATIONALE:ST-segment elevation localizes an ischemic lesion to the coronary artery supplying the area of the myocardium reflected by the electrocardiographic leads. Dynamic ST-segment elevation can be due to severe transmural ischemia secondary to a thrombus, vasospasm, or a tightly fixed coronary artery lesion or a combination of these situations. PATIENT CONCERNS:In this study, we report on two patients with angina who had fluctuations in ST-segment amplitude on serial electrocardiograms. The amplitude of ST-segment elevation varied between 1-20 mm. DIAGNOSES:Vasospastic angina (VSA) was diagnosed based on electrocardiography and coronary angiography. INTERVENTIONS:Calcium antagonists were prescribed for both patients. OUTCOMES:No recurrent VSA was noted during outpatient follow-up. LESSONS:VSA can be associated with fluctuations in the amplitude of ST-segment elevation, indicating dynamic coronary vasospasm in different locations and extensions in patients with VSA.
journal_name
Medicine (Baltimore)journal_title
Medicineauthors
Hung MJdoi
10.1097/MD.0000000000006334subject
Has Abstractpub_date
2017-03-01 00:00:00pages
e6334issue
11eissn
0025-7974issn
1536-5964pii
00005792-201703170-00041journal_volume
96pub_type
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