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Objectives:To investigate the predictive value of IABP-SHOCKⅡ risk score for 30-day mortality in Chinese patients with cardiogenic shock after acute myocardial infarction. Methods:A total of 212 hospitalized Chinese patients with cardiogenic shock after acute myocardial infarction were enrolled from June 2014 to July 2017. The IABP-SHOCKⅡrisk score was calculated at admission. The endpoint of this study was all-cause 30-day death. The predictive value of IABP-SHOCKⅡ risk score for these patients was assessed by calculating the area under receiver operating characteristic (ROC) curve. Results:According to the IABP-SHOCKⅡrisk score at admission, the patients were divided into 3 groups:score 0-2 group, n=106; score 3-4 group, n=56 and score 5-9 group, n=50. Patients were older, incidence of cerebral stroke, lactic acid, glucose at admission and creatinine levels were higher. while incidence of TIMI grade 3 was lower in score 3-4 group and score 5-9 group than in score 0-2 group (all P＜0.05). Percent of male patients was lower in score 5-9 group than in score 0-2 group (P＜0.05). Incidence of cerebral stroke, lactic acid, and creatinine levels were higher. while incidence of TIMI grade 3 was lower in score 5-9 group than in score 3-4 group (all P＜0.05). Sixty-eight patients died during the 30 days follow-up, mortality was 6.6%, 37.5% and 80% in the score 0-2 group, score 3-4 group, and score 5-9 group, respectively (P＜0.05). The ROC curve analysis showed that AUC was 0.853, and 95%CI was 0.796-0.911. Conclusions:IABP-SHOCKⅡ risk score is suitable for risk stratification and assessment of 30-day mortality in Chinese patients with cardiogenic shock after acute myocardial infarction and may facilitate the clinical decision making to improve the outcome of these patients.
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<p><b>OBJECTIVE</b>To explore the correlation between plasma BNP level and left ventricular dysfunction parameters in patients with acute myocardial infarction (AMI).</p><p><b>METHODS</b>Plasma BNP level was determined in 230 consecutive inpatients with AMI and 111 normal controls. Patients were grouped according Killip grades, LVEF and LVEDd, respectively. BNP was transformed into lnBNP for the normal distribution. The receiver operator characteristic curve (ROC curve) was drawn to determine the best threshold and criteria for diagnosing heart failure.</p><p><b>RESULTS</b>After AMI, lnBNP levels increased significantly in proportion with increasing Killip grades (I-III), and decreasing LVEF (all P < 0.05). lnBNP level was significantly higher in LVEDd > 55 mm group than in the LVEDd < 55 mm group (P < 0.01). lnBNP, LVEDd and LVEF all linearly correlated with Killip grades (P < 0.05) and the best correlation was shown between lnBNP and Killip grades (r = 0.53, P < 0.05). lnBNP also positively correlated with LVEDd (r = 0.17, P < 0.05) and negatively correlated with LVEF (r = -0.41, P < 0.01). Among the parameters, lnBNP level presented the largest AUC in their ROC curves (P < 0.01) for diagnosing decompensated heart failure and cardiogenic shock. The sensitivity, specifiticity and accuracy rates for diagnosing decompensated heart failure were 84.9%, 45.0% and 70.0% respectively by lnBNP at the cut point of 140 ng/L. The sensitivity, negative predicting value and accuracy rate for diagnosing cardiac shock were 82.8%, 66.7% and 67.4% respectively by BNP at the cut point of 400 ng/L.</p><p><b>CONCLUSION</b>lnBNP level in hospitalized patients with AMI was positively correlated with Killip grades and LVEDd, negatively correlated with LVEF and could serve as a parameter for diagnosing the decompensated heart failure and excluding the cardiac shock.</p>