Table 2. Echocardiographic features of the groups.
| Variables | Heroin (+) | Heroin (–) | p-value |
| RVEF (%) | 59.6 ± 2.5 | 60.6 ± 2.3 | 0.08 |
| Intraventricular septum (mm) | 8.7 ± 1.3 | 8.6 ± 0.9 | 0.79 |
| Right atrium area (mm2) | 16.2 ± 2.9 | 14.9 ± 2.6 | 0.04 |
| RV basal diameter (mm) | 39.4 ± 4.7 | 35.6 ± 4.3 | < 0.01 |
| RV mid diameter (mm | 37.2 ± 4.7 | 31.8 ± 3.6 | < 0.01 |
| RV apicobasal (mm) | 60.8 ± 7.2 | 53.6 ± 11.1 | 0.01 |
| Pulmonary artery diameter (mm) | 22.4 ± 2.5 | 20 ± 2.5 | < 0.01 |
| RV wall thickness (mm) | 4.7 ± 1.1 | 4.6 ± 1 | 0.81 |
| RVFAC (%) | 42.7 ± 8.3 | 43.9 ± 3.5 | 0.44 |
| TAPSE (mm) | 24.1 ± 4.2 | 24.5 ± 2.4 | 0.71 |
| Pulsed Doppler MPI | 0.48 ± 0.22 | 0.39 ± 0.11 | 0.02 |
| Tricuspid PW E (cm/s) | 62.9 ± 14.8 | 0.01 | |
| Tricuspid PW A (cm/s) | 44.1 ± 11.4 | 40.7 ± 8.2 | 0.12 |
| Tissue Doppler S wave (cm/s) | 13.7 ± 2.1 | 13.8 ± 2.1 | 0.86 |
| Tissue Doppler e wave (cm/s) | 17.2 ± 4.5 | 14.3 ± 3 | 0.01 |
| Tissue Doppler a wave (cm/s) | 12.6 ± 3.1 | 13.1 ± 3.1 | 0.50 |
| RVIVA (m/s 2) | 2.92 ± 0.69 | 3.4 ± 0.68 | < 0.01 |
p < 0.05 statistically significant. Continuous variables are reported as mean ± SD or median (IQR). Categorical variables are reported as n (%). RVEF: right ventricular ejection fraction, TAPSE: tricuspid annular plane systolic excursion, RVFAC: right ventricular fractional area change, MPI: myocardial performance index, RVIVA: right ventricular isovolumic acceleration, PW: pulsed wave.