Radical nephrectomy was performed through traditional robot-assisted transabdominal approach

Traditional laparoscopic radical nephrectomy was performed

Through a single-level surgical approach, surgical robot-assisted transperitoneal retroperitoneal radical nephrectomy was performed.

Free through the single layer of the posterior abdominal cavity

Blood loss during operation

Time to get out of bed after surgery

Length of hospital stay after surgery

According to the surgical records in the medical records, whether the operation was converted to laparotomy was checked, and the data were recorded when collecting the data.

Complete operative time

Observe whether the tumor is complete according to the naked eye after surgery，Record and record to the surgical record, record when collecting the receipt.

Grade I : long-term pain, fever, continuous bleeding and exudate, transient intestinal obstruction ; grade II : need blood transfusion, pneumonia ; grade III : hematuria requiring cystoscopy ; level IV : renal insufficiency requiring hemodialysis, respiratory insufficiency requiring ICU treatment, and cardiac insufficiency requiring ICU care.