Table 1.
Patient and scintigraphic parameters for all subjects and subdivided by late H/M 123I-MIBG
| All (N = 290) | Late H/M | |||
|---|---|---|---|---|
| <1.4 (N = 51) | 1.4–2.0 (N = 143) | >2.0 (N = 96) | ||
| Patient characteristics | ||||
| Male/Female | 237/53 | 39/12* | 117/26* | 81/15* |
| Age (years) | 53 ± 11 (21–83) | 55 ± 10‡ | 54 ± 10‡ | 49 ± 11 |
| NYHA (II/III/IV) | 165/116/9 | 11/34/6† | 85/55/3† | 69/27/0† |
| LVEF (%) | 32 ± 14 (7–85) | 23 ± 9† | 31 ± 13‡ | 39 ± 14* |
| Etiology of heart failure (isch/non-isch) | 121/169 | 20/31‡ | 70/73‡ | 31/65‡ |
| Scintigraphic parameters | ||||
| Collimator type (LEGP/LEHR/ME) | 50/216/24† | 24/25/2† | 24/104/15† | 2/87/7† |
| Activity (MBq) | 164 ± 53 (72–370) | 145 ± 31† | 173 ± 64 | 160 ± 41 |
| Delay after injection (h) | 4.3 ± 0.6 (1.9–6.9) | 4.1 ± 0.5‡ | 4.3 ± 0.5‡ | 4.5 ± 0.6 |
| Duration of acquisition (min) | 9.6 ± 3.3 (1–15) | 11.3 ± 4.3† | 9.2 ± 3.4 | 9.4 ± 2.0* |
Data are presented as mean ± standard deviation (range).
NYHA New York Heart Association, LVEF left ventricular ejection fraction, Isch ischemic, Non-isch non-ischemic, LEGP low-energy all purpose, LEHR low-energy high resolution, ME medium energy, MBq mega-Becquerel, h hours, min minutes.
Categorical data (Fisher’s exact test, for each group): *p = 0.53; †p < 0.001; ‡p < 0.035.
Continuous data (ANOVA with posthoc Bonferoni): *p < 0.01 compared to late H/M <1.4; †p < 0.01 compared to late H/M 1.4–2.0; ‡p < 0.01 compared to late H/M >2.0.