Department of Anesthesiology Shijitan Hospital Medical University 100038;
Department of Anesthesiology Affiliated Jinhua Hospital of Wenzhou Medical University 321000;
IVF centre Affiliated Jinhua Hospital of Wenzhou Medical University 321000;
Hepatocellular carcinoma; DEXMEDETOMIDINE; YOHIMBINE; α^(2)-adrenergic receptor; HIF-1A; VEGFA; Vascular mimicry; ANGIOGENESIS;