Table 4.
Outcomes of Obstetric Maneuvers
| Rate of Success with a Particular Maneuver | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Maneuver | Total N |
N with order documented | First | Second | Third | Fourth | Fifth+ | P-value' | Overall | P-value |
| McRoberts | 1679 | 1123 (66.9%) | 213/918 (23.2%) | 49/186 (26.3%) | 11/19 (57.9%) | -- | -- | 0.0067 | 273/1123 (24.3%) | <0.001 |
| Suprapubic pressure | 1386 | 875 (63.1%) | 58/116 (50.0%) | 406/635 (63.9%) | 74/116 (63.8%) | 6/8 (75.0%) | -- | 0.0002 | 544/875 (62.2%) | <0.001 |
| Delivery of posterior shoulder | 262 | 179 (68.3%) | 7/8 (87.5%) | 28/32 (87.5%) | 55/73 (75.3%) | 40/45 (88.9%) | 21/21 (100.0%) | 0.4642 | 151/179 (84.4%) | Referrant |
| Rubin maneuver | 86 | 50 (58.1%) | 4/6 (66.7%) | 4/5 (80.0%) | 16/27 (59.3%) | 9/12 (75.0%) | -- | 0.7760 | 33/50 (66.0%) | <0.005 |
| Woods corkscrew | 315 | 221 (70.2%) | 14/19 (73.7%) | 27/34 (79.4%) | 78/114 (68.4%) | 35/49 (71.4%) | 5/5 (100.0%) | 0.7031 | 159/221 (72.0%) | <0.005 |
| Rate of Injury with Attempted Maneuver | ||||||||||
| Maneuver | N with order documented | First | Second | Third | Fourth | Fifth+ | P-value' | Overall | ||
| McRoberts | 1679 | 1123(66.9%) | 51/918 (5.6%) | 15/186 (8.1%) | 2/19 (10.5%) | -- | -- | 0.15 | 68/1123 (6.1%) | 0.25 |
| Suprapubic pressure | 1386 | 875(63.1%) | 6/116 (5.17%) | 39/635 (6.1%) | 10/116 (8.6%) | 1/8 (12.5%) | -- | 0.26 | 56/875 (6.4%) | 0.34 |
| Delivery of posterior shoulder | 262 | 179(68.3%) | 0/8 (0.0%) | 0/32 (0.0%) | 2/73 (2.7%) | 8/45 (17.78%) | 5/21 (23.8%) | <.0001 | 15/179 (8.4%) | Referrant |
| Rubin maneuver | 86 | 50(58.1%) | 0/6 (0.0%) | 0/5 (0.0%) | 5/27 (18.5%) | 2/12 (16.7%) | -- | 0.27 | 7/50 (14.0%) | 0.23 |
| Woods corkscrew | 315 | 221(70.2%) | 0/19 (0.0%) | 0/34 (0.0%) | 13/114 (11.4%) | 7/49 (14.3%) | 1/5 (20.0%) | 0.01 | 21/221 (9.5%) | 0.7 |
"Conchran-Amitage for trend" Delivery of Posterior Shoulder used as referent