Limitations
This study was prone to limitations due to its retrospective and
non-randomized design. In choosing a potential donor graft for a
recipient, it is common for surgeons to employ some form of
donor-to-recipient sizing prior to organ acceptance. In this study, the
analysis was conducted on patients who underwent OHT, and therefore,
donor-to-recipient pairing was not randomized. As a result, the true
relationship between donor heart sizing and outcomes may be
underestimated.