What are the risks for minimally invasive operations?

what kind of risks would be associated with minimally invasive? So minimally invasive operations although seem to be keyhole to a patient they are generally more technically demanding because you are performing the procedure through a small access or a small hole. Obviously if you're performing this procedure through a small hole you have to be mindful that you should have good visibility of all the cardiac structures for you to do for you to perform this procedure safely. If during the procedure there is bleeding, then that can sometimes become very difficult to control or manage through a small hole and hence the procedure may have to be converted from a keyhole to a standard conventional incision, which means that you are adding more injury to the patient by extending the procedure. Also, sometimes if you do not have ideal access through a small incision, then that can make the operation quite challenging and it can take a lot longer for you to complete the procedure, which then means that the patient is on the heart lung machine for a longer duration of time, which then translates into longer stay in intensive care unit and potential risk of organ damage because they have been on the heart lung machine with artificial circulation, which can generate a lot of systemic inflammatory response and that can affect the functioning of the lungs and the kidneys and even the brain. So it is extremely important that these procedures, when performed through keyhole approach are properly assessed prior to undertaking the procedure to ensure that patients are suitable candidates for having these procedures.