Risk Factors of Riou et al for Postoperative Abdominal Wound Dehiscence

 

Factors associated with wound dehiscence:

(1) age > 65 years

(2) wound infection

(3) pulmonary disease

(4) hemodynamic instability and peri-operative hypotension (systolic blood pressure < 90 mm Hg for > 10 minutes)

(5) ostomies in the incision

(6) hypoalbuminemia (albumin < 3.5 g/dL)

(7) systemic infection

(8) obesity (body weight > 150% of ideal body weight)

(9) uremia

(10) hyperalimentation

(11) malignancy

(12) ascites

(13) steroid use

(14) hypertension

 

Factors not associated with wound dehiscence:

(1) gender

(2) foreign body in wound

(3) emergency surgery

(4) type of incision

(5) type of closure

(6) anemia

(7) diabetes

(8) jaundice

 

number of risk factors =

= SUM(risk factors present)

 

Interpretation:

• The more risk factors present, the more likely wound dehiscence was to occur.

• The more risk factors present, the greater the short term (within 90 days) mortality rate.

 

Number of Risk Factors	Percent with Wound Dehiscence	Mortality Rate
0 - 3	0%	0%
4	12%	0%
5	30%	0%
6	60%	0%
7	70%	0%
8	75%	0%
9	100%	33%
10	100%	50%
11 - 14	100%	100%