FIGURE 1.
FIGURE 2.
FIGURE 3.
FIGURE 4.
Univariate analysis for relatively larger hematoma with patient demographics and lesion characteristics
| Survey of breast biopsies | |||||||
|---|---|---|---|---|---|---|---|
| Parameter | All (n=252) | Relatively smaller hematoma (n = 200) | Relatively larger hematoma (n = 52) | P Value | |||
| Age (y) | 51.96 | ±11.69 | 53.09 | ±11.09 | 47.63 | ±12.984 | 0.002* |
| Procedure time (min) | 41.83 | ±13.39 | 42.58 | ±13.80 | 38.96 | ±11.324 | 0.072 |
| Right biopsy side | 117 | 46% | 90 | 45% | 27 | 52% | 0.436 |
| Number of samples | 12.08 | ± 4 | 11.81 | ±4.08 | 13.1 | ±3.533 | 0.243 |
| Biopsy system | 0.035* | ||||||
| VABB | 228 | 90% | 177 | 88.5% | 51 | 98% | |
| Spirotome | 24 | 10% | 23 | 11.5% | 1 | 2% | |
| LAE | 171 | 68% | 133 | 67% | 38 | 73% | 0.408 |
| Lesion size (mm) | 11.2 | ±6.612 | 11.27 | ±6.55 | 10.94 | ±6.89 | 0.425 |
| Distance LN in RBV | 0.079 | ± 0.05 | 0.07 | ± 0.04 | 0.11 | ±0.04 | 0.001* |
| Access path length in RBV | 0.055 | ± 0.046 | 0.05 | ± 0.03 | 0.08 | ±0.07 | 0.001* |
| PDPectLesion in RBV | 0.065 | ± 0.036 | 0.06 | ± 0.04 | 0.07 | ± 0.04 | 0.143 |
| Biopsy angle (degree) | 90.79 | ± 10.4 | 90.93 | ± 9.55 | 90.27 | ± 13.26 | 0.443 |
| Pathological findings | 0.831 | ||||||
| Benignity | 159 | 63% | 125 | 63% | 34 | 65% | |
| highrisk lesions | 36 | 14% | 28 | 14% | 8 | 15% | |
| Malignancy | 57 | 23% | 47 | 24% | 10 | 19% | |
| Pretreatment | 65 | 26% | 55 | 28% | 10 | 19% | 0.286 |
| Lesion location | 0.399 | ||||||
| Upper inner q | 47 | 19% | 34 | 17% | 13 | 25% | |
| Upper outer q | 84 | 33% | 64 | 32% | 20 | 38% | |
| Lower inner q | 24 | 10% | 21 | 11% | 3 | 6% | |
| Lower outer q | 72 | 29% | 61 | 31% | 11 | 21% | |
| Areolar | 25 | 10% | 20 | 10% | 5 | 10% | |
| Proportion of mammary gland | 0.215 | ||||||
| 0–25% | 105 | 42% | 85 | 43% | 20 | 38% | |
| 25–50% | 48 | 19% | 37 | 19% | 11 | 21% | |
| 50–75% | 47 | 19% | 37 | 19% | 10 | 19% | |
| 75–100% | 52 | 21% | 41 | 21% | 11 | 21% | |
Results of multivariate logistic regression analysis for relatively larger hematoma
| B | S.E. | Wald test | df | P value | Odds ratio | 95% CI | ||
|---|---|---|---|---|---|---|---|---|
| Variable | - | + | ||||||
| Age (y) | -0.031 | 0.160 | 3.927 | 1 | 0.048* | 0.969 | 0.94 | 1 |
| Biopsy system | 2.468 | 1.11 | 4.947 | 1 | 0.026* | 11.798 | 1.341 | 103.811 |
| Distance LN in RBV | 9.501 | 3.538 | 7.214 | 1 | 0.007* | 13379 | 13.037 | 13.7 × 10^6 |
| Access path length in RBV | 7.622 | 3.49 | 4.77 | 1 | 0.029* | 2043 | 2.186 | 1.9 × 10^6 |
| Procedure time (min) | -0.025 | 0.015 | 2.759 | 1 | 0.097 | 0.975 | 0.947 | 1.005 |