PostOperative Atrial Fibrillation Risk Index - Medical Algorithm

Description

Mathew et al developed a risk index for predicting atrial fibrillation following surgery. This can help identify patients who may require more aggressive monitoring and therapy. The authors are from the Investigators of the Ischemia Research and Education Foundation and the Multicenter Study of Perioperative Ischemia Research Group.

Parameters:

(1) age of the patient in years

(2) history of atrial fibrillation

(3) history of chronic obstructive pulmonary disease (COPD)

(4) concurrent valve surgery

(5) ACE inhibitor therapy

(5A) withdrawal

(5B) pre- and post-operative therapy

(6) beta-blocker therapy

(6A) withdrawal

(6B) pre- and post-operative therapy

(6C) postoperative

(7) potassium supplementation

(8) NSAID therapy

Parameter	Finding	Points
age of the patient	< 30 years	6
	30 – 39 years	12
	40 – 49 years	18
	50 – 59 years	24
	60 – 69 years	30
	70 – 79 years	36
	>= 80 years	42
history of atrial fibrillation	no	0
	yes	7
history of COPD	no	0
	yes	4
concurrent valve surgery	no	0
	yes	6
ACE inhibitor therapy	none	0
	withdrawn	5
	pre- and post-operative	-5
beta-blocker therapy	none	0
	withdrawn	6
	pre- and post-operative	-7
	post-operative	-11
potassium supplementation	no	0
	yes	-5
NSAIDS	no	0
	yes	-7

total index =

= SUM(points for all of the parameters)

Interpretation:

• minimum score: -17

• maximum score: 70

• The higher the score the greater the risk for recurrence of atrial fibrillation.

Index	Risk
<= 13	low
14 – 31	medium
>= 32	high

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Description

Specialty

Objective

ICD-10

Index of Mathew et al for Post-Operative Occurrence of Atrial Fibrillation

Purpose: To determine the risk of atrial fibrillation in a patient after surgery using the risk index of Mathew et al.

Description

Specialty

Objective

ICD-10