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Journal Article
Observational Study
Type of myocardial infarction presentation in patients with chronic kidney disease.
Nutrition, Metabolism, and Cardiovascular Diseases : NMCD 2015 Februrary
BACKGROUND AND AIM: Association of coronary and renal disease has been frequently found in epidemiological studies. Whether ECG-graphic presentation of myocardial infarction [S-T Elevated MI (STEMI) or Non S-T Elevated MI (NSTEMI)] is related to the degree of renal dysfunction is still unclear.
METHODS AND RESULTS: We examined 146 patients with acute myocardial infarction, consecutively entering the Coronary Care Unit of our ward. At entry, patients underwent clinical, ECG-graphic and echocardiographic examination, and blood samples were withdrawn for cardiac markers and general biochemistry. GFR was calculated using the CKD-EPI equation. STEMI was found in 71 cases and NSTEMI in 75 cases. Renal function was normal in 61 patients (stage 1), mildly impaired (<90 mL/min/1.73 m(2) and ≥ 60 mL/min/1.73 m(2)) in 60 (stage 2) and moderately to severely impaired (GFR <60 mL/min/1.73 m(2)) in 25 cases (stages 3-4). Patients were, thereafter, clustered into two groups (stages 1-2 and stages 3-4). Compared to stage 1-2 subjects, stages 3-4 patients were older, were more likely to be diabetic and had more frequently previous cardiovascular diseases. The probability of presentation of NSTEMI for stage 3-4 patients was 4-fold greater than for stage 1-2 patients (p = 0.02).
CONCLUSIONS: These data support the evidence that 1) NSTEMI is associated with more severe kidney dysfunction, likely due to more severe and/or longer lasting exposition to risk factors; 2) cardiac and renal impairment are strongly associated. ClinicalTrials.gov Identifier: NCT01636427.
METHODS AND RESULTS: We examined 146 patients with acute myocardial infarction, consecutively entering the Coronary Care Unit of our ward. At entry, patients underwent clinical, ECG-graphic and echocardiographic examination, and blood samples were withdrawn for cardiac markers and general biochemistry. GFR was calculated using the CKD-EPI equation. STEMI was found in 71 cases and NSTEMI in 75 cases. Renal function was normal in 61 patients (stage 1), mildly impaired (<90 mL/min/1.73 m(2) and ≥ 60 mL/min/1.73 m(2)) in 60 (stage 2) and moderately to severely impaired (GFR <60 mL/min/1.73 m(2)) in 25 cases (stages 3-4). Patients were, thereafter, clustered into two groups (stages 1-2 and stages 3-4). Compared to stage 1-2 subjects, stages 3-4 patients were older, were more likely to be diabetic and had more frequently previous cardiovascular diseases. The probability of presentation of NSTEMI for stage 3-4 patients was 4-fold greater than for stage 1-2 patients (p = 0.02).
CONCLUSIONS: These data support the evidence that 1) NSTEMI is associated with more severe kidney dysfunction, likely due to more severe and/or longer lasting exposition to risk factors; 2) cardiac and renal impairment are strongly associated. ClinicalTrials.gov Identifier: NCT01636427.
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