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Use of Thrombolysis in Myocardial Infarction Risk Score to predict bleeding complications in patients with unstable angina and non-ST elevation myocardial infarction undergoing percutaneous coronary intervention

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Abstract

Thrombolysis in myocardial infarction (TIMI) is a prognostic score developed for managing the high risk of cardiac events immediately after unstable angina and non-ST elevation myocardial infarction (UA/NSTEMI). In Asian populations that have a higher rate of bleeding complications, data about TIMI score are lacking. Using a Japanese multicenter registry, we investigated the impact of utilizing TIMI score in UA/NSTEMI patients, focusing on bleeding complications. The TIMI score was calculated for 587 patients who underwent percutaneous coronary intervention (PCI) for UA/NSTEMI (2008–2010). They were classified into low-risk (TIMI score 0–2, N = 268, 45.6 %), intermediate-risk (TIMI score 3–4, N = 264, 45.0 %) and high-risk (TIMI score 5–7, N = 55, 9.4 %) groups; patient characteristics for each group were statistically analyzed. The patients in the higher TIMI score group were older (p < 0.001), had lower GFR (p = 0.021) and hemoglobin level after PCI (p < 0.001), and severe coronary disease pattern (p = 0.014 and p = 0.023, respectively, for left main and three-vessel disease). The TIMI score was significantly associated with requirement of blood transfusion (low-risk, moderate-risk, and high-risk groups: 1.1, 4.2, and 7.3 %, respectively; p = 0.021), and the incidence of access site bleeding (1.1, 2.7, and 5.5 %, p = 0.112). The TIMI score might aid in subjectively quantifying the risk of in-hospital complication rates such as access site bleeding.

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Acknowledgments

We appreciate all the investigators, clinical coordinators and institutions involved in the JCD-KICS study. This research was supported by a grant from the Ministry of Education, Culture, Sports, Science, and Technology, Japan (KAKENHI No. 21790751). Investigators Sonhan Yun, and Toshiyuki Takahashi (Ashikaga Red Cross Hospital); Yutaka Okada and Takashi Koyama (Eiju General Hospital); Soushin Inoue (Hino Municipal Hospital); Kimi Koide and Masaru Shibata (Hiratsuka City Hospital); Shunsuke Takagi (Isehara Kyodo Hospital); Keishu Li and Koichiro Sueyoshi (Kawasaki City Municipal Hospital); Masashi Takahashi, Yohei Ohno, Takahide Arai, Shinsuke Yuasa, Yuichiro Maekawa and Akio Kawamura (Keio University School of Medicine); Masahiro Suzuki (National Hospital Organization Saitama National Hospital); Yukinori Ikegami and Yukihiko Momiyama (National Hospital Organization Tokyo Medical Center); Ayaka Endo, Toshiyuki Takahashi and Susumu Nakagawa (Saiseikai Central Hospital); Takashi Yagi, Takeshi Onitsuka and Shigetaka Noma (Saiseikai Utsunomiya Hospital); Shiro Ishikawa (Saitama City Hospital); Atsushi Mizuno, Shuzo Nishihara, Hitoshi Anzai and Yutaro Nishi (St Luke’s International Hospital Heart Center); Takahiro Oki (Tokyo Dental College Ichikawa General Hospital). Clinical coordinators Fumika Tamura, Junko Susa, Hiroe Fukuda, Ayano Ishikawa, Shuko Oonuki and Ikuko Ueda.

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Correspondence to Yohei Numasawa.

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Numasawa, Y., Kohsaka, S., Miyata, H. et al. Use of Thrombolysis in Myocardial Infarction Risk Score to predict bleeding complications in patients with unstable angina and non-ST elevation myocardial infarction undergoing percutaneous coronary intervention. Cardiovasc Interv and Ther 28, 242–249 (2013). https://doi.org/10.1007/s12928-013-0162-3

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