A patient with type B aortic dissection (Stanford classification) involving the descending thoracic aorta is hemodynamically stable without malperfusion. What is the initial management of choice according to current TEVAR guidelines?
- A Emergency open surgical repair
- B Immediate thoracic endovascular aortic repair (TEVAR)
- C Emergency CT surgery consultation for cardiopulmonary bypass
- D Medical management with anti-impulse therapy targeting SBP 100-120 mmHg and heart rate <60/min ✓
Explanation
Uncomplicated Stanford Type B (DeBakey Type III) aortic dissection not involving the ascending aorta is managed initially with medical anti-impulse therapy (IV beta-blockers ± nitroprusside) targeting SBP 100-120 mmHg and HR <60 bpm to reduce aortic wall stress. TEVAR is indicated for complicated Type B dissection (malperfusion, rupture, refractory hypertension, expanding aorta). The INSTEAD-XL trial showed TEVAR had a benefit in the subacute phase (2-52 weeks) for uncomplicated dissection in terms of aortic remodeling, but emergency TEVAR is not the standard for stable uncomplicated Type B. Open surgery has very high morbidity for Type B dissection.
Reference: Bailey & Love's Short Practice of Surgery, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.