We organized our study as a retrospective archive scan. Following the
permission we received from the local ethics committee to scan the
patient files (decision no: 2020/85), patients who underwent isolated
coronary bypass operation at Kütahya Health Sciences University Evliya
Çelebi Training and Research Hospital between 2017-2019 were
examined. Inclusion criteria comprised patients who were diagnosed with
diabetes mellitus and underwent an isolated coronary bypass operation
for the first time. Patients who underwent beating heart surgery,
presented to the emergency department with acute MI and started
’ticagrelor’ treatment, and those who died within the first 24 hours
postoperatively were excluded. In addition, the amount of drainage
before re-exploration was used for the scoring systems in patients who
were explored due to bleeding. Demographic characteristics and
hematological parameters were determined according to the blood samples
obtained preoperatively, at the closest date to the operation day. Since
our study is focused on early postoperative bleeding, it includes the
first 24 hours of postoperative follow-up, because bleeding and related
complications are likely to occur in the early period. The amount of
drainage and blood products used in the first 24 hours postoperatively
were recorded.
This study was based on a prospective multicenter study in Europe,
e-CABG (clinicaltrials.govIdentifier:NCT02319083) . The bleeding scores
(Papworth, Will-Bleed, Track, Trust) were compared with the E-CABG
bleeding grades and analyzed to find which was more convenient for our
patient population. In addition, significant parameters were determined,
and it was aimed to lay the foundations of the ORS by using these
parameters in larger studies.
E-CABG is a multi-center study conducted across 6 European countries
(Germany, Italy, England, France, Sweden, Finland) and 16
centers 18. In this study, risk was calculated by
scoring after grouping according to the blood products and amounts
transfused.