Silent brain infarction after minimally invasive cardiac surgery with
Background and aim: The incidence of symptomatic cerebral infarction
after minimally invasive cardiac surgery (MICS) with retrograde
perfusion has been increasing. However, there is no report about silent
brain infarction (SBI) after MICS with retrograde perfusion. Because SBI
may cause delirium and decline of cognitive function, this condition is
important clinically. Thus, the current study aimed to investigate the
occurrence of SBI after MICS via magnetic resonance imaging (MRI).
Methods: Between July 2014 and July 2018, 174 patients underwent MICS
with retrograde perfusion and postoperative MRI in this study.
Univariate and multivariate analyses were performed to examine the
occurrence of SBI and to identify its risk factors. Results: Of 174
patients, 26 (14.9%) presented with SBI. The univariate analysis
revealed that age and aortic valve stenosis (AS) are the risk factors of
SBI. Meanwhile, multivariate analysis revealed AS as the only risk
factor of SBI. Conclusions: At our institution, the incidence of SBI
after MICS with retrograde perfusion was acceptable.