Predicted Factors of Prolonged Postoperative ICU Admission More Than Four Days: Thai Tertiary University Hospital

Abstract

Objective: To identify the risk factors associated with prolonged intensive care unit admission (≥4 days) and mortalityinpostoperative surgicalpatients. Methods: A retrospective, case-control study was conductedin527patients admittedtopostoperative intensive care units during a 1-year period. Fifteen factors were included in univariate and only significant factors were includedin multivariate analyses. Results: Twenty one percent of all admissions had prolonged length-of-stay. From multivariate analysis, predictedriskfactorswereemergencysurgery(OR 2.9,p=0.001, CI1.6-5.2); remainedintubation(OR 2.6,p=0.007, CI 1.3-5.4), unplanned ICU admission (OR 2.1, p=0.03, CI 1.1-4.2); SAPS II score >52 (OR 4.8, p64 (OR 6.1, p3 (OR 8.2, p=0.003, CI 2-32.9), ICU readmission (OR 3.9, p=0.007, CI 1.5-10.8), inotrope infusion inICU (OR 3, p=0.006, CI1.4-6.7), renal replacement therapy (OR 3.2, p=0.007, CI 1.3-8.2), SAPSII score52-63(OR 3.6,p=0.018, CI1.2-6.8),SAPSII score>64(OR 3.9,p=0.006, CI1.4-9) andcirrhosis (OR 4.9,p=0.04, CI1.1-21). Conclusion: ASA physicalstatus>3andSAPSIIscore>52 wereindependentpredictivefactorsofbothprolonged intensive careunit admissionand mortality.

Keywords

• Prolonged ICU admission; mortality;SAPSII score