Introduction:

Aortic stenosis is the most common valvular heart disease requiring surgical treatment. Minimally invasive surgical techniques have emerged as alternatives to traditional median sternotomy.

Objective:

To analyze the possible risk factors associated with major bleeding in patients undergoing aortic valve replacement via right anterior mini-thoracotomy and to share the results found in our center.

Materials and methods:

A retrospective, observational, longitudinal study was conducted in patients undergoing right anterior mini-thoracotomy from July 2015 to December 2022. Demographic and clinical data, as well as relevant surgical and echocardiographic variables, were collected.

Results:

The mean age of the study population had a mean age of 58 years, with a predominance of men under 65 years of age. Only three patients experienced major bleeding 4.47%. Advanced age and extracorporeal circulation time (minutes) were associated with bleeding. No significant differences were found in other variables analyzed.

Conclusions:

The study results indicate a low rate of postoperative bleeding in minimally invasive surgery. Advanced age and prolonged extracorporeal circulation time were identified as significant risk factors for major bleeding. However, further studies with a larger sample size are needed to better understand these factors and the safety of minimally invasive surgery.

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