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Reduced collateral circulation to the infarct-related artery in elderly patients with acute myocardial infarction

Toshiya Kurotobi, MD, PhD^*, Hiroshi Sato, MD, PhD, FACC^,*, Kunihiro Kinjo, MD, PhD, Daisaku Nakatani, MD, Hiroya Mizuno, MD, Masahiko Shimizu, MD, Katsuji Imai, MD, PhD^*, Atsushi Hirayama, MD, PhD, FACC, Kazuhisa Kodama, MD, PhD, FACC, Masatsugu Hori, MD, PhD, FACC OACIS Group

^* Cardiovascular Division, Osaka Minami National Hospital, Kawachinagano, Japan
Department of Internal Medicine and Therapeutics, Osaka University Graduate School of Medicine, Suita, Japan
Cardiovascular Division, Osaka Police Hospital, Osaka, Japan

View larger version (7K): [in a new window]   Figure 1 The prevalence of collateral circulation to the infarct-related artery based on patient age. Prevalence of collaterals was significantly lower above 70 years of age.

View larger version (9K): [in a new window]   Figure 2 The prevalence of pre-infarction angina pectoris (pre-AP) (a), presence of history of angina pectoris (AP) (b), and time from onset to catheterization (c) in patients below 70 and above 70 years of age. NS = not significant.

View larger version (10K): [in a new window]   Figure 3 The prevalence of collaterals to the infarct-related artery in patients with pre-infarction angina (pre-AP) (a), history of angina pectoris (AP) (b), and early catheterization (6 h from the onset of acute myocardial infarction) (c) in patients below 70 or above 70 years of age.