Table 1.
Procedure-Specific Factors
| Variable | Category |
||||
|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | |
| OR time, min | < 30 | 31–60 | 61–120 | 121–180 | ≥ 181 |
| Anticipated LOS | Outpatient or current inpatient, ready for discharge | 23 h | 24–48 h | ≤ 3 d or current inpatient, nearing discharge | >4 d or current inpatient, unknown LOS |
| Postoperative ICU need, % | Very unlikely | < 5 or current NICU/PICU patient, ready for discharge | 5–10 | 11–25 or current NICU/PICU patient, nearing discharge | ≥ 25 or current NICU/PICU patient, unknown LOS |
| Projected EBL∗ (% blood volume) or probability of blood product transfusion | ≤ 2, or transfusion very unlikely | 3–5, or transfusion < 25% likely |
6–10, or transfusion 50% likely | 11–15, or transfusion > 75% likely |
> 15, or multiple transfusions likely |
| Surgical team size, n | 1 | 2 | 3 | 4 | > 4 |
| Intubation needed to perform procedure (probability), % | ≤ 1 | 1–5 | 6–10 | 11–25 | ≥ 25 |
| Surgical site† | None of the following row variables | Abdominopelvic MIS | Abdominopelvic open operation, infra-umbilical | Abdominopelvic open operation, supra-umbilical | Other OHNS, upper GI, thoracic |
Procedure score 7 to 35. Higher scores associated with potentially worse outcomes, increased risk to provider, and/or increased hospital resource use.
GI, gastrointestinal; LOS, length of stay; MIS, minimally invasive surgery; NICU, neonatal ICU; OHNS, otolaryngology-head and neck surgery; OR, operating room; PICU, pediatric ICU.
A weight-based estimated blood loss calculator available at: https://reference.medscape.com/calculator/estimated-blood-volume.
Surgical sites that would fall into category 1 include orthopaedic and neurosurgical cases, as well as head and neck or axillary lymph node biopsies. If the approach also includes one of the other surgical sites, and then the higher scoring site would take precedence in scoring.