Myocardial Injury After Noncardiac Surgery (MINS)
MINS is a condition where the heart muscle is damaged after surgery that is not related to the heart.
Causes of MINS
Ischemia Hypotension Tachycardia Inflammation Pre-existing heart disease Smoking
Diagnosis: Elevated cardiac troponin levels when the heart muscle is damaged
Electrocardiogram (ECG) may show changes suggestive of ischemia
Chest pain, shortness of breath, and arrhythmias
Risk Factors: Major noncardiac surgeries0 abdominal, orthopedic, vascular surgery Advanced age Pre-existing heart disease Diabetes Obesity Smoking
Incidence: Occurs in about 1-2% of noncardiac surgeries
Higher incidence in high-risk patients
Treatment is aimed at improving blood flow to the heart and reducing inflammation.
Medications may include: Aspirin Statins Beta-blockers ACE inhibitors
Monitoring and observation are essential to detect and manage complications.
Most patients with MINS recover fully with appropriate treatment, however, some patients may develop long-term complications, such as heart failure or arrhythmias.
Prevention:
Optimizing pre-operative health
Managing risk factors-weight loss, smoking cessation Avoiding prolonged hypotension and tachycardia during surgery