Conditions: Ureteral Stricture; Dexmedetomidine; Esketamine; Depressive Symptoms; Anxiety
Interventions: Drug: Combined dexmedetomidine-esketamine administration; Drug: Placebo administration
Sponsors: Peking University First Hospital
Not yet recruiting Conditions: Ureteral Stricture; Dexmedetomidine; Esketamine; Depressive Symptoms; Anxiety
Interventions: Drug: Combined dexmedetomidine-esketamine administration; Drug: Placebo administration
Sponsors: Peking University First Hospital
Not yet recruiting