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Table 2 Complication grades according to the Dindo-Clavien classification scheme

From: Can the prophylactic administration of tranexamic acid reduce the blood loss after robotic-assisted radical prostatectomy? Robotic Assisted Radical Prostatectomy with tranEXamic acid (RARPEX): study protocol for a randomized controlled trial

Grade Definition
Grade I Any deviation from the normal postoperative course without the need for pharmacological treatment or surgical, endoscopic, and radiologic intervention
Grade II Requiring pharmacological treatment with drugs other than those allowed for grade I complications
Grade III Requiring surgical, endoscopic, or radiological intervention
Grade IIIa Intervention not under general anesthesia
Grade IIIb Intervention under general anesthesia
Grade IV Life-threatening complications requiring intensive care unit management
Grade IVa Single-organ dysfunction
Grade IVb Multiorgan dysfunction
Grade V Death of the patient