n | Myocyte size (μm) | Grade of fibrosis | Grade of disarray | IMSA disease | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Group | RVB | LVB | RVB | LVB | RVB | LVB | RVB | LVB | RVB | LVB | ||||
DCM-like HCM | 5 | 4 | 21.7 (3.9)* | 26.9 (1.6)* | 2.0 (0.7)* | 1.8 (1.0)* | 2.2 (0.4)* § ¶ | 2.3 (1.0)* § ‡ ¶ | 1/5 | 2/4 | ||||
HCM | 5 | 5 | 20.9 (4.1)* | 27.5 (5.0)* | 1.6 (0.5)* | 1.2 (0.8)* | 1.8 (1.1)* § ¶ | 1.2 (0.4)* † § | 0/5 | 1/5 | ||||
DCM | 5 | 5 | 19.2 (3.3)* | 25.4 (1.7)* | 1.8 (0.8)* | 2.4 (0.9)* | 0.4 (0.5)† ‡ | 0.2 (0.4)† ‡ | 0/5 | 0/5 | ||||
Postmyocarditis | 4 | 3 | 18.3 (5.8) | 23.6 (6.1)* | 1.8 (0.5)* | 2.3 (0.6)* | 0.3 (0.5)† ‡ | 1.0 (1.0)† | 0/4 | 0/3 | ||||
Normal control | 6 | 5 | 12.8 (2.2)† ‡ § | 15.6 (1.7)† ‡ § ¶ | 0.3 (0.5)† ‡ § ¶ | 0.2 (0.4)† ‡ § ¶ | 0.3 (0.8)† ‡ | 0.0 (0.0) † ‡ | 0/6 | 0/5 |
Values are mean (SD).
Significant difference (p < 0.05) compared with: (*) control; (†) DCM-like HCM; (‡) HCM; (§) DCM; (¶) or postmyocarditis.
RVB and LVB, right and left ventricular biopsy; IMSA, intramyocardial small artery.