Critical Matters Acute Type B Aortic Dissection
Dec 25, 2025
Dr. Firas Mussa, a vascular surgeon and professor at McGovern Medical School, dives deep into the complex world of acute type B aortic dissection. He emphasizes the critical role of intensivists in managing these urgent cases and unpacks the differences between dissection types. Mussa discusses risk factors like hypertension, outlines diagnostic standards, and explores treatment options, including TEVAR. He also highlights the importance of ICU protocols in improving patient outcomes and factors influencing clinical trials. Personal reflections and book recommendations add a nice touch!
AI Snips
Chapters
Transcript
Episode notes
Get A Full CTA With Contrast Immediately
- Order CTA of chest, abdomen, and pelvis with contrast as the diagnostic gold standard for acute aortic syndromes.
- Do not rely on non-contrast CT; obtain ECG and troponins concurrently and consider D-dimer adjunctively.
Use Protocolized Anti‑Impulse ICU Management
- Implement strict anti-impulse therapy: target systolic ~120 mmHg and heart rate <80 bpm with A-line monitoring and urine output.
- Prefer IV labetalol (and protocolized transitions to oral agents) and tightly control fluids and analgesia in the ICU.
Re‑Image Early With Clinical Changes
- Maintain a low threshold for repeat imaging within 24–48 hours or when new symptoms/signs appear.
- Re-image for persistent severe pain, neurologic change, hypotension, worsening labs, or new limb ischemia to detect complication or extension.