Table 4.
The frequency improvement effect of VPCs within 24 h.
| Studies | Groups (T/C) | The total effect (n) | Ineffective (n) | Total efficiency (%) |
|---|---|---|---|---|
| Chen and Shan (25) | WXKL + Metalol tartrat | 42 | 8 | 84 |
| Metalol tartrate | 38 | 12 | 76 | |
| Zhao (26) | WXKL + Betaloc | 37 | 3 | 92.5 |
| Betaloc | 29 | 11 | 27.5 | |
| Xu et al. (27) | WXKL + Betaloc | 30 | 2 | 93.8 |
| Betaloc | 18 | 14 | 56.3 | |
| Wang (28) | WXKL + Betaloc | 43 | 2 | 95.6 |
| Betaloc | 31 | 12 | 72.1 | |
| Xu (29) | WXKL + Betaloc | 41 | 2 | 95.35 |
| Betaloc e | 35 | 9 | 79.55 | |
| Luo et al. (30) | WXKL + Metalol tartrate | 28 | 4 | 87.5 |
| Metalol tartrate | 20 | 12 | 62.5 | |
| Zhang et al. (31) | WXKL + Betaloc | 50 | 3 | 93.34 |
| Betaloc | 39 | 11 | 78 | |
| Wang et al. (32) | WXKL + Betaloc | 45 | 9 | 83.3 |
| Betaloc | 31 | 19 | 57.4 | |
| Wu (33) | WXKL + Metoprolol | 29 | 3 | 90.6 |
| Metoprolol | 18 | 12 | 60 | |
| Zhang (34) | WXKL + Metoprolol | 48 | 6 | 88.9 |
| Metoprolol | 40 | 18 | 74.1 | |
| Dai and Zhengdong (35) | WXKL + Metalol tartrate | 36 | 6 | 85.7 |
| Metalol tartrate | 27 | 15 | 64.3 |