Device-related adverse events were underreported. Adverse events from CRT are not mentioned in 8 of the publication abstracts. Unsuccessful initial CRT implant rates are described in all publications, with a mean 8% of patients having an unsuccessful implant (range, 1%-14%). Procedural complication rates and a description of the complications are provided in only 6 publications, with a mean 15.7% of patients experiencing complications (range, 4%-28%). Three additional publications provide partial descriptions of procedural complications. Postimplant complication data are clearly reported in only 4 publications, with a mean 26.1% of patients experiencing complications (range, 7%-46%). In 1 publication, annualized complication event rates are noted but without describing specific complications. In 1 publication, composite procedural and postprocedural complications rates are reported. In all 10 publications, only 1 table of a total 51 tables and figures is used to describe adverse events.