Uncomplicated Acute Type B Aortic Dissection: Next Step When Initial Medical Therapy Does Not Achieve Target Blood Pressure and Heart Rate

Stanford type B aortic dissection — acute dissection that does not involve the ascending aorta — is typically managed first with medical therapy. When that initial strategy fails to meet its haemodynamic targets, a further management step is warranted.

Clinical Scenario

Acute aortic dissection not involving the ascending aorta (Stanford type B), classified as uncomplicated — no rupture, no branch artery occlusion or malperfusion, no extension of dissection, and no aortic enlargement.

Prior Therapy — Goals Not Met

Medical therapy is recommended as the initial management strategy for uncomplicated acute type B aortic dissection. This protocol applies when that approach has not achieved the targets of systolic blood pressure <120 mm Hg and heart rate of 60–80 bpm.

Next-Step Approach (partial)

In select patients where certain anatomic features are present, an endovascular approach may be considered. The full structured regimen — including patient selection criteria and complete management steps — is available in the complete protocol.

Instant Access to Structured Evidence-Based Regimens

References

DOI: 10.1161/CIR.0000000000001106

Type B: All dissections that do not involve the ascending aorta (including dissections that involve the aortic arch but spare the ascending aorta).

In all patients with uncomplicated acute type B aortic dissection, medical therapy is recommended as the initial management strategy.

In patients with uncomplicated acute type B aortic dissection who have high-risk anatomic features (Table 28), endovascular management may be considered.

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