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[Clinical and developmental aspects of 1-vessel right coronary atheroma. Therapeutic consequences]
Insights
This study on isolated right coronary artery atherosclerosis found a 5-year mortality of 5.6%. Percutaneous angioplasty was indicated in 42% of patients, highlighting its potential role in managing this condition.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Medicine
Context:
- Isolated obstructive atherosclerosis of the right coronary artery is a specific subset of coronary artery disease.
- Understanding its clinical profile and prognosis is crucial for guiding treatment strategies.
Purpose:
- To analyze the clinical characteristics, prognosis, and impact on left ventricular function of isolated right coronary artery atherosclerosis.
- To establish indications for percutaneous angioplasty in these patients.
Summary:
- Seventy-one patients with >75% stenosis in a dominant or equilibrated right coronary artery (and no other coronary stenosis) were studied over a median of 56 months.
- 60% had prior myocardial infarction, predominantly inferior wall.
- Medical management was most common (62 patients), with 7 bypass surgeries and 2 percutaneous angioplasties. Retrospective analysis suggested percutaneous angioplasty was indicated in 42% of cases.
- The 5-year mortality rate was 5.6%, with all deaths being sudden. One death occurred 28 days post-bypass surgery due to perioperative infarction.
Impact:
- This study provides valuable insights into the long-term outcomes of isolated right coronary artery disease.
- It suggests a significant proportion of these patients may be suitable candidates for percutaneous angioplasty, potentially improving outcomes and reducing mortality.
Abstract:
This study analysed the clinical profile, prognosis and consequences on left ventricular function of isolated obstructive atherosclerosis of the right coronary artery in order to establish the indications of percutaneous angioplasty. The inclusion criteria were at least one stenotic lesion greater than 75 p. 100 of a dominant or equilibrated right coronary artery and exclusion of stenosis of the other coronary vessels. A questionnaire was sent to the treating physician and to the patient to establish the actuarial survival (Cutler and Ederer's method). The average period of follow-up was 56 months (range 12 to 70 months). Seventy one patients (average age 53 years) were selected from a series of 2,675 consecutive coronary angiograms performed between 1979 and 1984 (2.7 p. 100). The incidence of previous infarction was 60 p. 100; this was located on the inferior wall in 75 p. 100, inferobasal wall in 12 p. 100 and infero-latero-basal wall in 13 p. 100. Bypass surgery was performed in 7 cases and percutaneous angioplasty in 2 cases. Sixty-two cases were managed medically. Analysis of the 71 angiographic films of the series showed in retrospect an indication for percutaneous angioplasty in 29 patients (42 p. 100 of the series). The 5 year mortality rate was 5.6 p. 100. Death was sudden in the 4 cases observed, including one on the 28th day after bypass surgery complicated by perioperative infarction.(ABSTRACT TRUNCATED AT 250 WORDS)