Ciprofol Sedation in Patients Undergoing Liver Cancer Percutaneous Radiofrequency Ablation

Inclusion Criteria:

* Patients who intend to undergoing ultrasound-guided percutaneous radiofrequency ablation of liver tumors;
* Age: 18-75 years old;
* ASA grade I-III;
* Laboratory examination meets the following conditions: neutrophils \>1.5×109/L, platelet \>80×109/L, hemoglobin \>90g/L, aspartate transferase \<1.5×ULN, total bilirubin \<1.5×ULN, serum creatinine \<1.2 x ULN;
* Chemotherapy \< 4 times.

Exclusion Criteria:

* Patients who are known to be allergic to propofol, opioids, eggs, soy products, or patients who are contraindicated with these drugs or foods due to illness;
* serious organ dysfunction and other systemic diseases, such as liver dysfunction, renal dysfunction; Worsening congestive heart failure within the last 6 months resulting in hospitalization or adjustment of medication; Severe aortic or mitral stenosis; Heart surgery (heart valve replacement) within the last 6 months; Acute myocardial infarction in the last 6 months; Hemodynamic disturbance due to arrhythmia; Respiratory diseases; Cerebrovascular diseases; . Taking propofol, opioids or other analgesic and sedative drugs 72 hours before . Emergency surgery;
* Those who are unable to communicate with the researcher normally or who are deemed unsuitable by the researcher and refuse to participate in the study.