Before cardiac bypass, ECG and cardiac ultrasound, blood type and pre-transfusion four, coronary artery imaging, blood routine and coagulation function are required.
1. Electrocardiogram and cardiac ultrasound: to clarify the size of the heart, systolic and diastolic functions, and whether there is any infarction in the heart muscle.
2. Blood type and pre-transfusion four items: cardiac bypass is an invasive operation, to prevent bleeding during the operation, perfect blood type and other tests can be prepared for blood transfusion.
3. Coronary artery imaging: to understand the degree of vascular lesions and facilitate intraoperative operation.
4. Blood routine and coagulation function: to understand the platelet and coagulation situation, to assess the risk of bleeding.
There are many tests that need to be done before cardiac bypass surgery, please consult your specialist for details.