The location of ulcerlike projections is the principal predictor of progression, and careful follow-up study is needed for patients with an ulcerlike projection located from the ascending aorta to the aortic arch.

Maximum aortic diameter and maximum aortic wall thickness on initial CT images are predictive for progression of the affected aorta in patients with type B IMH. For type B IMH with a maximum aortic diameter of 40 mm or more or a maximum aortic wall thickness of 10 mm or more, careful follow-up studies must be required.

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The new hydrocolloid dressing, applied with an occlusive dressing technique to median sternotomy wounds, prevented SSI and was cost effective.

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