• Sunisa Chatmongkolchart, Kaweesak Chittawatanarat, Osaree Akaraborworn, and Chanatthee Kitsiripant.
• J Med Assoc Thai. 2016 Sep 1; 99 Suppl 6: S31-S37.

ObjectiveTo quantify the total cost per admission and daily cost of critically ill surgical patients and cost attributable to Acute Physiologic Assessment and Chronic Health Evaluation (APACHE) II score, invasive mechanical ventilation and major complications in surgical intensive care unit (SICU) including sepsis, acute respiratory distress syndrome (ARDS), acute lung injury (ALI), acute kidney injury (AKI), cardiac arrest, and myocardial infarction.Material And MethodA multicentre, prospective, observational, cost analysis study was carried out in SICU of five university hospitals in Thailand. Patients of age over 18 admitted to SICU (more than 6 hours) from 18 April 2011 to 30 November 2012 were recruited.The total SICU cost per admission (in Thai baht currency year 2011-2012) were recorded using hospital accounting database. Average daily SICU cost was calculated from total ICU cost divided by the ICU length of stay. The occurrence of sepsis, major cardiac and respiratory complications and duration of invasive mechanical ventilation were studied.ResultsA total of 3,055 patients with 12,592 ICU-days admitted to SICU during the study period. The median (IQR) ICU- length of stay was 2 (1, 4) days. The median (IQR) total SICU cost per admission was 44,055 (29,950-73,694) Thai baht. The median (IQR) daily cost was 18,777 (13,650-22,790) Thai baht. There was a variation of total and daily SICU cost across ICUs. For each of APACHE II score increases, cost increases with a median (IQR) of 1,731.755 (1,507.418-1,956.093) Thai baht. Invasive mechanically ventilated patients had higher cost than non-ventilated patients with a median (IQR) 15,873.4 (15,631.13-16,115.67) Thai baht. The patient with any complications listed here (sepsis, ARDS, ALI, AKI, myocardial infarction) had higher costs of care than ones who had none.ConclusionCost of critically ill surgical patients in the public university hospital in Thailand was varied. The complications occurred in ICU increased the cost. To quantify the resource consumption of individual patient admitted to SICU, the costing method and cost components must be verified.

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