Related Experiment Video
Updated: Aug 12, 2026
Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
Left main coronary arterial obstruction: Long-term follow-up of 141 nonsurgical cases
Insights
Obstructive left main coronary artery disease carries a grave prognosis, with a 5-year cardiac mortality rate exceeding 50%. Early mortality is particularly high, influenced by factors like left ventricular hypertrophy and heart failure.
Area of Science:
- Cardiology
- Cardiovascular Medicine
- Interventional Cardiology
Background:
- Obstructive left main coronary artery disease (OLMCAD) is a critical condition.
- Prognosis in OLMCAD patients requires further elucidation.
- Understanding long-term outcomes is vital for clinical management.
Purpose of the Study:
- To investigate the long-term prognosis of patients diagnosed with obstructive left main coronary artery disease.
- To identify predictors of mortality in this patient cohort.
Main Methods:
- A retrospective study of 141 patients with OLMCAD.
- Follow-up duration of 5 to 10 years post-coronary arteriography.
- Analysis of clinical, electrocardiographic, and angiographic data.
Main Results:
- The 5-year cardiac mortality rate was 51%.
- Mortality was especially high within the first 3 years post-diagnosis (21.9%, 34.7%, 43%).
- Predictors of early mortality included left ventricular hypertrophy, conduction delay, and multivessel disease; severe angina, heart failure, and reduced left ventricular contractility predicted 5-year mortality.
Conclusions:
- Obstructive left main coronary artery disease has a poor long-term prognosis with high early and 5-year mortality rates.
- Specific clinical and electrocardiographic findings, along with extent of coronary artery disease, are crucial indicators of poor prognosis.
- Aggressive management strategies are warranted for patients with OLMCAD and identified risk factors.
Abstract:
The prognosis of 141 patients with obstructive left main coronary artery disease was studied. The patients were followed up for 5 to 10 years from the date of coronary arteriography. The 5 year cardiac mortality rate was 51 percent. During the first 3 years after diagnosis, the mortality rate was especially high, 21.9, 34.7 and 43 percent, respectively. Among patients who died in the 1st year after diagnosis, evidence of left ventricular hypertrophy or conduction delay in the electrocardiogram and multiple vessel involvement indicated poor prognosis. Severe angina pectoris, evidence of congestive heart failure and generalized decrease in left ventricular contractility increased the 5 year mortality rate. More than 97 percent of the total patient population had additional lesions elsewhere in the coronary arteries.
More Related Videos
Related Concept Videos
01:27Coronary Artery Disease V: Interprofessional Care
01:28Cardiomyopathy VII: Pre and Post Operative Nursing Management