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Pascal Delsart1, Marco Midulla2, Jonathan Sobocinski3, Charles Achere4, Stephan Haulon3, Gonzague Claisse1, Claire Mounier-Vehier11Vascular Medicine and Hypertension Department, Cardiology Hospital, CHRU Lille, 2Radiology and Cardiovascular Imaging Department, Cardiology Hospital, CHRU Lille, 3Vascular Surgery Department, Cardiology Hospital, CHRU Lille, 4Cardiology Department, Cardiology Hospital, CHRU Lille, FranceAbstract: The chronic management of post-acute aortic dissection (AD) of the descending aorta (Type B) is based on optimal control of blood pressure (BP), with a target BP < 135/80 mmHg. The aim of our study was to determine and verify effective blood pressure control with an objective measurement method and to identify predicting factors.Methods: We collected data from 26 patients hospitalized in the acute phase of a Type B AD between 2006 and 2009. Two groups were defined according to 24 hour BP monitoring results at follow-up. Group 1 consisted of patients with a controlled BP (< 130/80 mmHg), and Group 2 consisted of patients with an uncontrolled BP.Results: Thirty four percent of patients showed an uncontrolled BP at checkup. Vascular history before AD (P = 0.06), high baseline BP trend (P = 0.01 for systolic and P = 0.08 for diastolic), and greater diameter of the descending aorta (P = 0.02) were associated with poor BP control.Conclusion: Prognosis after AD is associated with BP control. Therefore, 24 hour BP monitoring can be made.Keywords: acute aortic syndrome, blood pressure monitoring, hypertension