Long-term home self-treatment with high thoracic epidural anesthesia in patients with severe coronary artery disease

Area of Science:

• Cardiology
• Pain Management
• Anesthesiology

Background:

• Severe coronary artery disease (CAD) and refractory unstable angina pose significant challenges, especially for inoperable or high-risk patients.
• Conventional treatments may be insufficient for patients with refractory symptoms and high operative risks.

Purpose of the Study:

• To evaluate the efficacy and safety of long-term, self-administered high thoracic epidural anesthesia (TEA) for managing severe coronary artery disease and refractory unstable angina.
• To assess patient satisfaction and the reduction in angina episodes with TEA treatment.

Main Methods:

• Twenty patients with severe CAD and refractory unstable angina received long-term TEA via a tunneled epidural catheter for home self-use.
• Patients were instructed to use sublingual nitrates first and bupivacaine epidural injections for severe angina episodes.
• Catheters were maintained for extended periods (mean 6 months), and injection frequency was monitored.

Main Results:

• High TEA treatment resulted in significant pain relief and high patient satisfaction.
• A notable decrease in the frequency of epidural injections was observed over time (from 1.86 to 0.96 injections/day).
• No severe adverse events were reported, with only one instance of tachyphylaxis.

Conclusions:

• Long-term, self-administered high TEA is a safe and effective treatment for severe CAD and refractory unstable angina in high-risk or inoperable patients.
• TEA significantly reduces angina frequency and improves quality of life, allowing some patients to defer or avoid more invasive procedures.
• The decreasing need for injections over time suggests a sustained therapeutic effect or adaptation to the treatment.