Nutritional risk index as a predictor of postoperative wound complications after gastrectomy

Table 1 Types and definitions of wound complications

Types	Definitions
Seroma	Serous fluid collection in the absence of infection
Hematoma	Subcutaneous blood in the absence of infection
Wound infection	Displayed two or more of the following characteristics: drainage of purulent material, erythema, tenderness, induration or fever
Wound dehiscence	(1) Hematoma, seroma, or infection that required that the incision be opened, evacuated, and/or irrigated and debrided;
	(2) Status that required packing and healing by secondary intention

From Chelmow et al[9] 2004.