Risk Factors and Outcome of Acute Kidney Injury following Acute Myocardial Infarction—A Case Series Study from 2009 to 2019

Figure 1. Algorithm and summarized results of the study. AMI: acute myocardial infarction; AKI: acute kidney injury; Cr: creatinine; ER: emergency room. AKI stage 1 as serum creatinine 1.5–1.9 times baseline or ≥0.3 mg/dL increment or urine output <0.5 mL/kg/h for 6–12 h; stage 2 as serum creatinine 2.0–2.9 times baseline or urine output <0.5 mL/kg/h for more than 12 h; stage 3 as serum creatinine more than 3.0 times baseline or increment in serum creatinine to ≥4.0 mg/dL or initiation of renal replacement therapy or urine output less than 0.3 mL/kg/h for ≥24 h, or anuria more than 12 h.

Figure 2. Hemodialysis-free survival of MI patients with different AKI stages (S1: stage 1; S2–S3: stage 2 or 3). AKI stage 1 as serum creatinine 1.5–1.9 times baseline or ≥0.3 mg/dL increment or urine output <0.5 mL/kg/h for 6–12 h; stage 2 as serum creatinine 2.0–2.9 times baseline or urine output <0.5 mL/kg/h for more than 12 h; stage 3 as serum creatinine more than 3.0 times baseline or increment in serum creatinine to ≥4.0 mg/dL or initiation of renal replacement therapy or urine output less than 0.3 mL/kg/h for ≥24 h, or anuria more than 12 h.

Figure 3. Kaplan–Meier curves display overall survival rate of patients with or without AKI (S1: stage 1; S2–S3: stage 2 or 3). AKI stage 1 as serum creatinine 1.5–1.9 times baseline or ≥0.3 mg/dL increment or urine output <0.5 mL/kg/h for 6–12 h; stage 2 as serum creatinine 2.0–2.9 times baseline or urine output <0.5 mL/kg/h for more than 12 h; stage 3 as serum creatinine more than 3.0 times baseline or increment in serum creatinine to ≥4.0 mg/dL or initiation of renal replacement therapy or urine output less than 0.3 mL/kg/h for ≥24 h, or anuria more than 12 h.