Table 2.
Days of Mechanical Ventilation and Rates of Failed Extubation
| Author | Tests done pre or post extubation decision * |
N | Variables | FE (%) | LMV (d) |
|---|---|---|---|---|---|
| Khan, 199660 | Retrospective | 208 | RSBI, Vt/kg | 16 | 5.1 |
| Baumeister, 199718 | Retrospective | 47 | RSBI <11 | 19 | ? |
| Thiagarajan, 199932 | Retrospective | 227 | RSBI <8 | 11 | 4.9 |
| Farias, 199864 | Prospective | 84 | SBT: T-piece | 16 | 6.0 |
| Manczur, 200034 | Retrospective | 47 | OI, VT/kg, MV | 14 | ? |
| Hubble, 200035 | Retrospective | 45 | Vd/Vt <0.5 | 4 | 5.9 |
| Venkataraman, 200033 | Retrospective | 312 | RSBI, Vt/kg | 16 | 5.1 |
| Edmunds, 200159 | Retrospective | 632 | Clinical | 4.9 | 6.5 |
| Farias, 200261 | Prospective | 418 | SBT: T-piece | 14 | 6.5 |
| Randolph, 200219 | Prospective | 313 | SBT; PS/PEEP | 16 | 7.0 |
| Harrison, 200222 | Prospective | 202 | SBT; PS/PEEP | 10 | ? |
| Kurachek, 20037 | Prospective | 2794 | Clinical | 6.2 | 4.8 |
| Baisch, 200558 | Retrospective | 3193 | Clinical – 5 y | 4.1 | 5.9 |
| Fontela, 200562 | Retrospective | 124 | Clinical | 10.5 | 5.8 |
| Chavez, 200665 | Retrospective | 70 | SBT: T-piece | 7.8 | 3.3 |
*
Retrospective and prospective refer here as to whether the physiological measurements were taken after or before a decision had been made clinically to extubate the patients, respectively.