Key result
Rapid blood pressure reduction in acute type B aortic dissection triggers iatrogenic watershed cerebral infarction.
Why the study?
Management of acute type B aortic dissection requires stringent blood pressure control, but rapid reduction may cause adverse events such as cerebral hypoperfusion.
Case Report (n=1)
No
Rapid and strict blood pressure lowering in patients with acute type B aortic dissection and chronic hypertension can precipitate life-threatening cerebral hypoperfusion, highlighting the need for individualized hemodynamic management.
May warrant slower BP reduction in chronic hypertensives with acute type B dissection; challenges consensus targets and leaves open prospective validation.
Type B aortic dissection represents a life-threatening cardiovascular event, necessitating a comprehensive treatment approach that includes anti-impulse therapy for blood pressure and heart rate control, movement restriction, analgesia, sedation, and consideration of subsequent endovascular or open surgery. Management of acute aortic dissection involves stringent blood pressure control to prevent extension of the dissection, which is critical in both surgical preparation and conservative treatment strategies. While the treatment regimen is relatively well-established, and early and long-term follow-up results are promising, there have been reports of adverse events during treatment. In this context, we present a case of a 40-year-old male with acute type B aortic dissection who developed cerebral hypoperfusion as a consequence of rapid blood pressure reduction, underscoring the need for balanced hemodynamic management. Following thoracic endovascular aortic repair surgery and hyperbaric oxygen therapy, the patient fully recovered 6 months later with no lingering sequelae. While current guidelines emphasize specific numerical values for blood pressure control in type B aortic dissection, the case underscores the potential need for a more individualized approach tailored to the unique characteristics of each patient.
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Zhao et al. (2025) conducted a case report in Acute type B aortic dissection (n=1). Rapid blood pressure reduction (metoprolol and nicardipine) was evaluated on Cerebral hypoperfusion / watershed cerebral infarction. Rapid blood pressure reduction in a patient with acute type B aortic dissection led to iatrogenic watershed cerebral infarction, highlighting the need for individualized hemodynamic management.
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