Methods
This is a non-randomized controlled clinical trial, whose non-probabilistic
sample consisted of patients undergoing cardiac surgery in the
abovementioned service within a two-year interval. The Papworth Haemostasis
Checklist was adapted to the Brazilian laboratory parameters and the
questions were translated into Portuguese. This checklist was used before
the surgeon started the chest wall closure. Patients were followed up until
30 days after surgery. A P-value < 0.05 was considered statistically
relevant.