PREDICT-AKI

Calculate Risk of Acute Kidney Injury Following Cardiac Surgery

Comorbidities

Heart failure

No / Unknown Yes

Peripheral arterial disease

No / Unknown Yes

Liver disease

History of hepatitis B or C, cirrhosis, portal hypertension, esophageal varices, chronic alcohol abuse, or congestive hepatopathy.

No / Unknown Yes

Prior cardiac intervention

None Previous PCI only or previous intervention
that did not include both CABG and valve Previous CABG
and valve

Laboratory Values

Closest value within 30 days prior to surgery.

If a lab value is unavailable, select the left-most box.

Serum creatinine (mg/dL)

< 1.1
1.1 to < 1.4
1.4 to < 1.7
1.7 to < 2.0
2.0 to < 2.4
≥ 2.4

Serum bicarbonate (mEq/L)

25-30 < 25 or > 30

Serum albumin (g/dL)

> 4.5 ≤ 4.5

WBC (K/uL)

< 7 ≥ 7

Hemoglobin (g/dL)

≥ 12 < 12

RDW (%)

< 14 ≥ 14

Surgical Characteristics

Preoperative IABP

No / Unknown Yes

Operative status

Elective / Urgent Emergent

Type of surgery

Isolated
CABG
Isolated valve
surgery
CABG + 1 valve Two (or more)
valves only
Any aortic surgery or
CABG + ≥2 valves

Results

Estimated risk of AKI-KRT: --%

Estimated risk of CSA-AKI: --%

AKI-KRT is defined as receipt of kidney replacement therapy (KRT) within 7 days following cardiac surgery.

CSA-AKI, persistent moderate-to-severe cardiac surgery-associated AKI, is defined as a ≥2-fold rise in serum creatinine compared to baseline on two consecutive days or receipt of KRT within 7 days following surgery.

Abbreviations: CABG, Coronary artery bypass graft; IABP, Intra-aortic balloon pump; PCI, Percutaneous coronary intervention.