06 August 2020: Clinical Research
Elevated Lateral Position Improves the Success of Paramedian Approach Subarachnoid Puncture in Spinal Anesthesia before Hip Fracture Surgery in Elderly Patients: A Randomized Controlled Study
Wenchao Zhang 1AE , Tianlong Wang 2AF , Geng Wang 1AE* , Yi Yuan 1D , Yan Zhou 1BC , Xiaoyu Yang 1BC , Minghui Yang 3AF , Shaoqiang Zheng 1BCDOI: 10.12659/MSM.923813
Med Sci Monit 2020; 26:e923813
Table 3 Comparisons of outcomes between the 2 positions spinal anesthesia.
| Experimental (ELP)N=45 | Control (LRP)N=45 | Z/t/χ2 | P-value | |
|---|---|---|---|---|
| Number of passes, Median (P25–P75) | 2.00 (1.00~2.00) | 3.00 (2.00~3.00) | 3.197 | 0.001 |
| Number of attempts, Median (P25–P75) | 1.00 (1.00~2.00) | 2.00 (1.00~2.00) | 3.597 | |
| Successful dural puncture at the first pass, n (%) | 22 (48.9) | 11 (24.4) | 5.789 | 0.016 |
| Successful dural puncture within 2 passes, n (%) | 36 (80.0) | 22 (48.9) | 9.504 | 0.002 |
| Successful dural puncture at the first attempt, n (%) | 33 (73.3) | 17 (37.8) | 11.520 | 0.001 |
| Successful dural puncture within 2 attempts, n (%) | 44 (97.8) | 37 (82.2) | – | 0.030 |
| Time for identifying landmarks (s), mean±SD | 232.1±45.5 | 225.4±64.0 | 0.579 | 0.564 |
| Time for spinal anesthesia (s), mean±SD | 271.7±110.5 | 284.3±126.2 | 0.501 | 0.617 |
| Total procedure time (s), mean±SD | 503.9±124.3 | 509.6±141.6 | 0.205 | 0.838 |
| Postoperative pain score (NRS), mean±SD | 2.42±1.22 | 2.62±1.09 | 0.821 | 0.414 |
| Discomfort score, mean±SD | 2.89±1.05 | 3.36±0.91 | 2.256 | 0.027 |
| ELP – elevated lateral recumbent position with head and chest elevated 30°; LRP – lateral recumbent position; SD – standard deviation. | ||||