Conditions: Stoma Closure; Postoperative Pain; Quality of Recovery
Interventions: Procedure: Revised-Paravertebral Nerve Block
Sponsors: Sixth Affiliated Hospital, Sun Yat-sen University
Not yet recruiting Conditions: Stoma Closure; Postoperative Pain; Quality of Recovery
Interventions: Procedure: Revised-Paravertebral Nerve Block
Sponsors: Sixth Affiliated Hospital, Sun Yat-sen University
Not yet recruiting