Text and Data Mining valid from 2019-05-13
Received: 10 January 2019
Accepted: 8 May 2019
First Online: 13 May 2019
Compliance with ethical standards
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: The ICD registry was approved by the local ethics committee of the Landesärztekammer Rheinland Pfalz. The study has been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. All patients gave their informed consent for their inclusion into the ICD registry.