• Am. J. Cardiol. · Aug 2007

    Usefulness of preprocedural N-terminal pro-brain natriuretic peptide in predicting angiographic no-reflow phenomenon during stent implantation in patients with ST-segment elevation acute myocardial infarction.

    • Seo Na Hong, Youngkeun Ahn, Sun Ho Hwang, Nam Sik Yoon, Sang Rok Lee, Jae Youn Moon, Kye Hun Kim, Young Joon Hong, Hyung Wook Park, Ju Han Kim, Myung Ho Jeong, Jeong Gwan Cho, Jong Chun Park, and Jung Chaee Kang.
    • The Heart Center of Chonnam National University Hospital, Gwangju, South Korea.
    • Am. J. Cardiol. 2007 Aug 15; 100 (4): 631-4.

    AbstractThe no-reflow phenomenon after primary percutaneous coronary intervention (PCI) is associated with larger infarct size, worse functional recovery, and higher incidence of complication after acute ST-elevation myocardial infarction (STEMI). The aim of this study was to assess the relation between preprocedural N-terminal pro-brain-type natriuretic peptide (NT-pro-BNP) and angiographic no-reflow phenomenon. We measured preprocedural serum NT-pro-BNP level in 159 consecutive patients with acute STEMI (aged 63 +/- 12 years; 72% men) before PCI. Angiographic no-reflow after PCI was defined as Thrombolysis In Myocardial Infarction (TIMI) flow grade <3. Baseline characteristics, including time from chest pain onset, between the no-reflow (n = 67) and normal-reflow groups (n = 92) were similar. NT-pro-BNP was significantly higher in the no-reflow group than the normal reflow group (1,982 +/- 3,314 vs 415 +/- 632 pg/ml; p = 0.005). Also, high-sensitivity C-reactive protein, monocytes, and troponin-T were significantly higher in the no-reflow group than the normal-reflow group. In the no-reflow group, NT-pro-BNP was much higher in patients with TIMI flow grade 0 (n = 41; 2,290 +/- 3,495 pg/ml) than those with TIMI grade 1 or 2 (n = 26; 1,575 +/- 2,340 pg/ml), but without significant difference. The area under the receiver-operating characteristic curve for NT-pro-BNP was 0.78, and the optimal cut-off value identified using receiver-operating characteristic curve analysis was 500 pg/ml. At the standard cut-off value of >500 pg/ml, increased NT-pro-BNP showed a high probability of no-reflow phenomenon (odds ratio 4.42, 95% confidence interval 1.15 to 17.00, p = 0.028). In conclusion, preprocedural NT-pro-BNP may be a strong predictor of the development of no-reflow phenomenon after PCI in patients with acute STEMI.

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