PMID- 20824398 OWN - NLM STAT- MEDLINE DCOM- 20110331 LR - 20151119 IS - 1864-6433 (Electronic) IS - 0914-7187 (Linking) VI - 24 IP - 9 DP - 2010 Nov TI - Iodine-123-metaiodobenzylguanidine imaging can predict future cardiac events in heart failure patients with preserved ejection fraction. PG - 679-86 LID - 10.1007/s12149-010-0409-3 [doi] AB - OBJECTIVE: Iodine-123-metaiodobenzylguanidine ((123)I-MIBG) has been used to assess the function of the cardiac sympathetic nervous system in patients with chronic heart failure (HF). The usefulness of (123)I-MIBG imaging for evaluating patients with heart failure with preserved ejection fraction (HFPEF) has not been established. METHODS: We performed (123)I-MIBG scintigraphy and echocardiography and measured the plasma brain natriuretic peptide (BNP) levels of 117 consecutive HF patients (64 men, mean age 66 +/- 14 years) with a left ventricular ejection fraction (LVEF) of >/=50% who were admitted to our hospital. Patients were divided into 2 groups according to the New York Heart Association (NYHA) functional class. RESULTS: The (123)I-MIBG delayed heart-to-mediastinum (H/M) ratio was significantly lower, and the washout rate (WR) was higher in patients with HFPEF with advanced NYHA functional class (NYHA functional class I and II vs. III: 1.90 +/- 0.34 vs. 1.49 +/- 0.32, p < 0.0001; 25.9 +/- 13.4 vs. 46.9 +/- 16.3%, p < 0.0001, respectively). On the other hand, the (123)I-MIBG WR was not correlated with LVEF and had a weak correlation with plasma BNP levels (R = 0.207, p = 0.0346). Moreover, patients with a high (123)I-MIBG WR showed a poor clinical outcome (p = 0.0033). CONCLUSIONS: (123)I-MIBG imaging provides independent prognostic information in patients with HFPEF. FAU - Katoh, Shigehiko AU - Katoh S AD - Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, 2-2-2 Iida-Nishi, Yamagata, Japan. FAU - Shishido, Tetsuro AU - Shishido T FAU - Kutsuzawa, Daisuke AU - Kutsuzawa D FAU - Arimoto, Takanori AU - Arimoto T FAU - Netsu, Shunsuke AU - Netsu S FAU - Funayama, Akira AU - Funayama A FAU - Ishino, Mitsunori AU - Ishino M FAU - Niizeki, Takeshi AU - Niizeki T FAU - Nishiyama, Satoshi AU - Nishiyama S FAU - Takahashi, Hiroki AU - Takahashi H FAU - Miyashita, Takehiko AU - Miyashita T FAU - Miyamoto, Takuya AU - Miyamoto T FAU - Nitobe, Joji AU - Nitobe J FAU - Watanabe, Tetsu AU - Watanabe T FAU - Kubota, Isao AU - Kubota I LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100908 PL - Japan TA - Ann Nucl Med JT - Annals of nuclear medicine JID - 8913398 RN - 114471-18-0 (Natriuretic Peptide, Brain) RN - 35MRW7B4AD (3-Iodobenzylguanidine) SB - IM MH - *3-Iodobenzylguanidine/pharmacokinetics MH - Aged MH - *Diagnostic Imaging MH - Female MH - Heart Failure/blood/*diagnosis/metabolism/*physiopathology MH - Humans MH - Male MH - Middle Aged MH - Natriuretic Peptide, Brain/blood MH - Prognosis MH - Risk MH - *Stroke Volume EDAT- 2010/09/09 06:00 MHDA- 2011/04/01 06:00 CRDT- 2010/09/09 06:00 PHST- 2010/04/28 00:00 [received] PHST- 2010/07/30 00:00 [accepted] PHST- 2010/09/09 06:00 [entrez] PHST- 2010/09/09 06:00 [pubmed] PHST- 2011/04/01 06:00 [medline] AID - 10.1007/s12149-010-0409-3 [doi] PST - ppublish SO - Ann Nucl Med. 2010 Nov;24(9):679-86. doi: 10.1007/s12149-010-0409-3. Epub 2010 Sep 8.