Table 2. Intra-and post-operative parameters.
| Parameters | Group A (n=30) | Group B (n=35) | P value |
|---|---|---|---|
| Technical success rate | 100% | 100% | – |
| Patient position (supine/prone/lateral position) | 18/9/3 | 20/10/5 | 0.87 |
| Distance from nodule to pleural (cm) | 6.5±1.6 | 6.1±1.5 | 0.32 |
| Total procedure time (min) | 41.6±7.9 | 57.3±8.8 | <0.001 |
| Radical ablation cycle | 1.3±0.5 | 1.3±0.4 | 0.51 |
| Radical ablation power (W) | 37.5±2.5 | 37.5±2.8 | 0.45 |
| Radical ablation time (min) | 4.2±0.8 | 4.3±0.8 | 0.70 |
| Irradiation dose (mSv) | 12.9±1.4 | 19.4±2.3 | <0.001 |
| Complete ablation rate | 100% | 97.1% | 0.26 |
| Hospitalization stay (days) | 4.7±1.3 | 9.1±2.1 | <0.001 |
| Hospitalization cost (USD) | 3,768.8±652.9 | 4,508.0±514.1 | <0.001 |
| Follow up time (months) | 43.6±17.2 | 39.2±18.7 | 0.33 |
| Follow up treatments (C/R/others) | 12/4/18 | 14/5/20 | 0.99 |
Data are presented as mean ± standard deviation or number (frequency)/n (%). Group A underwent synchronous PB and MWA (strategy: low-power MWA-PB-high-power MWA). Group B underwent asynchronous PB and MWA. C, chemotherapy; R, radiotherapy; PB, percutaneous biopsy; MWA, microwave ablation.