Narrow true lumen favors future complication even in small diameter of type B aortic dissection

Figures

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  Figure 1. Freedom from all-cause death following conservative treatment for acute uncomplicated type B dissection. Survival rates are displayed in 30-month intervals. The group with aorta-related complications is group A, and those without is group U. The 95% CI is shown in color. CI, confidence interval.

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  Figure 2. Patient of uncomplicated type B aortic dissection, aortic diameter in the early subacute phase. (A) ROC curve. Maximum aortic diameter of the early subacute CT findings. (B) Kaplan-Meier curve of the aorta-related complication-free rate. Patients with an initial aortic diameter of 40 mm or less (marked as 0) vs. more than 40 mm (marked as 1) were compared. AUC, area under the curve; CI, confidence interval; ROC, receiver operating characteristic; CT, computed tomography.

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  Figure 3. CT image finding. True lumen area ratio of maximum aortic diameter at the early subacute phase. (A) ROC curve. The true lumen area ratio was examined based on the CT findings of early subacute phase. The probability of an aorta-related complication occurring in the long-term period. (B) Kaplan-Meier curve of the aorta-related complication-free rate. Patients were divided into groups with true lumen ratio of 52.9% or less (marked as 0) and more than 52.9% (marked as 1). AUC, area under the curve; CI, confidence interval; CT, computer tomography; ROC, receiver operating characteristic.

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  Figure 4. False lumen area (mm2) of maximum aortic diameter during follow-up. ROC curve. During follow-up, the false lumen area was measured when the aortic diameter was at its maximum. The probability of occurrence of aorta-related complication was examined. Patients with a false lumen of equal to or less than 814 mm2 (marked as 0) or greater than 814 mm2 (marked as 1) were compared. AUC, area under the curve; CI, confidence interval; ROC, receiver operating characteristic.

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  Figure 5. Survival curve was adjusted for age, gender and HT. (A) Patients with an initial aortic diameter of 40 mm or less than 40 mm were compared between groups with a TLAR of 52.9% or less (marked as 0) and more than 52.9% (marked as 1). (B) The probability of occurrence of aorta-related complication in the long-term period. Patients with an initial aortic diameter more than 40 mm were compared between groups with a TLAR of 52.9% or less (marked as 0) and more than 52.9% (marked as 1). HT, hypertension; TLAR, true lumen area ratio.