Gupta_Postoperative_Respiratory_Failure_Risk_guideline v.1

Postoperative Respiratory Failure Risk Calculator estimates risk of postoperative respiratory failure.

Maryam Razavi

maryam.razavi@cambio.se

@CambioCDS

To predict risk of mechanical ventilation for longer than 48 hrs postop or reintubation within 30 days.

Use in patients with risk of Postoperative respiratory failure (PRF) who require mechanical ventilation > 48 h after surgery or unplanned intubation within 30 days of surgery. Formula: Postoperative respiratory failure risk*, % = e^y / (1 + e^y) Where y = −1.7397 + sum of the values of the selected variables. Variables: - Functional status: Independent=0, Partially dependent=0.7678, Totally dependent=1.4046 - ASA class: 1: normal healthy patient= -3.5265, 2: mild systemic disease=-2.0008, 3: severe systemic disease=-0.6201, 4: severe systemic disease that is a constant threat to life=0.2441, 5: moribund, not expected to survive without surgery=0 - Sepsis: None=-0.7840, Preoperative systemic inflammatory response syndrome=0, Preoperative sepsis=0.2752, Preoperative septic shock=0.9035 - Emergency case: No= -0.5739, Yes=0 - Type of procedure: Anorectal= -1.3530, Aortic=1.0781, Bariatric=-1.0112, Brain=0.7336, Breast=-2.6462, Cardiac=0.2744, ENT (except thyroid/parathyroid)=0.1060, Foregut or hepatopancreatobiliary=0.9694, Gallbladder, appendix, adrenals, or spleen=-0.5668, Hernia (ventral, inguinal, femoral)=0, Intestinal=0.5737, Neck (thyroid/parathyroid)=-0.5271, Obstetric/gynecologic=-1.2431, Orthopedic and non-vascular extremity=-0.8577, Other abdominal=0.2416, Peripheral vascular=-0.2389, Skin=-0.3206, Spine=-0.5220, Non-esophageal thoracic=0.6715, Vein=-2.0080, Urology=0.3093.

1. Gupta H, Gupta PK, Fang X, et al. Development and validation of a risk calculator predicting postoperative respiratory failure. Chest. 2011;140(5):1207-1215.

OBSERVATION.gupta_postoperative_respiratory_failure_risk.v0