[Analysis of costs and profits of ambulatory care of Marfan patients after initiation of a novel German legal directive (116 b SGB V)].

Background: The Marfan syndrome is a typical rare disease with multiorgan involvement and the need for specialized interdisciplinary medical care. A novel German legal directive according to section sign 116 b of the Social Statutes Book V (116 b SGB V) improves options for reimbursement and thus encourages specialized hospitals to provide ambulatory care for rare diseases such as Marfan syndrome. The authors provide the first economic analysis of section sign 116 b in a German Marfan center.