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A high risk subgroup of patients with unstable angina pectoris treated medically or surgically
Insights
Patients with unstable angina experiencing rest angina despite CCU treatment are high-risk. Early coronary angiography and surgery are recommended for this subgroup to reduce acute myocardial infarction and death.
Area of Science:
- Cardiology
- Internal Medicine
Background:
- Unstable angina is a critical condition requiring prompt management.
- Identifying high-risk subgroups within unstable angina is crucial for effective treatment strategies.
Purpose of the Study:
- To identify and characterize a high-risk subgroup of unstable angina patients.
- To evaluate the outcomes of medical versus surgical management in this specific patient group.
Main Methods:
- Retrospective analysis of 15 patients admitted to a CCU with unstable angina.
- Defined criteria: continued angina at rest for 48 hours despite CCU medical treatment.
- Comparison of outcomes between medically and surgically treated patients.
Main Results:
- Eight medically treated patients: 7 developed acute myocardial infarction (AMI), 3 died (6 infarcts within 8 days).
- Six surgically treated patients: low incidence of AMI, late infarction, and death post-angiography and surgery.
- One patient declined surgery due to anatomical conditions, subsequently died from AMI.
Conclusions:
- The combination of recent-onset angina and persistent rest angina despite medical treatment identifies a high-risk unstable angina subgroup.
- Urgent coronary angiography and surgical intervention should be strongly considered for this high-risk group.
Abstract:
Among patients consecutively admitted to a coronary care unit (CCU) without a subsequent diagnosis of acute myocardial infarction (AMI), a subgroup fo unstable angina was selected, defined as continued episodes of angina at rest during a 48-hour period, despite medical treatment in the CCU. During a four-year period, 15 patients fulfilled these criteria. Eight patients were medically treated, seven of whom developed an AMI with three subsequent deaths. Six of the infarcts occurred within eight days of admission. In six patients, fulfilling the criteria, surgical treatment was performed. Angiography and surgery in this group were associated with low incidences of myocardial infarction, late infarction and death. In one patient, surgery was declined due to unfavourable anatomical conditions. This patient subsequently developed an AMI and died. It is concluded that the combination of recent onset of angina and continued episodes of angina at rest, despite medical treatment, selects a high risk subgroup of unstable angina. Acute coronary angiography and surgery ought to be considered in this subgroup.