Predictive Model of Wang et al for Postoperative Hyperlactatemia in a Patient with Acute Type A Aortic Dissection

Description

Wang et al a model for predicting postoperative hyperlactatemia (POHL) in a patient with acute Type A aortic dissection. POHL is a predictor of in-hospital mortality. The authors are from Tongji Medical College of Huazhong University in Wuhan, China.

Patient selection: acute type A aortic dissection

Hyperlactatemia was defined as peak arterial blood lactate concentration > 4 mmol/L in the first 12 hours in the ICU.

Parameters:

(1) sex

(2) history of surgery (not further defined)

(3) number of red blood cells units transfused

(4) cardiopulmonary bypass (CPB) time in minutes

Parameter	Finding	Points
sex	female	0
	male	0.72
history of surgery	no	0
	yes	0.539
number of units transfused		0.187 * (units)
CPB time		0.009 * (minutes)

value of X =

= SUM(points for all of the parameters) - 4.118

risk of postoperative hyperlactatemia =

= 1 / (1 + EXP((-1) * X))

Performance:

• The area under the ROC curve is 0.72.

To read more or access our algorithms and calculators, please log in or register.

Predictive Model of Wang et al for Postoperative Hyperlactatemia in a Patient with Acute Type A Aortic Dissection

Description

Specialty