Why do Multiple-trauma Patients Stay Longer in the Intensive Care Unit?; A Comparison of Injury Severity Score and The Number of Injured Regions |
Mu Jin Jo, Seong Hwa Lee, Seok Ju Cho, Seok Ran Yeom, Sang Kyoon Han, Sung Wook Park, Dae Seop Lee |
Department of Emergency Medicine, Pusan National University Hospital, Busan, Korea. 81kkoma@gmail.com |
어떤 다발성 외상환자가 중환자실에 오래 있게 되는가?; Injury severity score와 손상부위 수의 비교 |
조무진, 이성화, 조석주, 염석란, 한상균, 박성욱, 이대섭 |
부산대학교병원 응급의학과 |
Received: 10 January 2013 • Revised: 9 February 2013 • Accepted: 17 April 2013 |
Abstract |
PURPOSE Injury severity score (ISS), a widely used scoring system, is used to define the severity of trauma in multiple-trauma patients. Nevertheless, ISS cut-off value for predicting the outcome of multiple-trauma patients has not been confirmed. Thus, this study was performed to determine the more useful method for predicting the outcome for multiple-trauma patients: the ISS or the number of anatomical Abbreviated injury scale (AIS) injury regions. METHODS For 195 consecutive patients who a regional emergency medical center, we analyzed the ISS and the number of anatomical AIS injury region. The patients were divided into four groups based on the ISS and the number of anatomical AIS regions. We compared intensive-care-unit (ICU) admission days and hospitalization days and ICU stay ratio (ICU admission days/hospitalization days) between the four groups. RESULTS In the groups with an ISS more than 17, the results were not significantly different statistically the group with 2 anatomical AIS injury regions and more than 3 anatomical AIS injury regions. Also, in the group with an ISS of 17 or less, the results were the same as those for patients with an ISS more than 17 (p>0.05). Among the patients with 2 anatomical AIS injury regions, patients with an ISS more than 17 patients had more ICU admission days and a higher ICU stay ratio than patients with an ISS 17 or less. Also, Among the patients with 3 anatomical AIS injury regions, the results were the same as those for patients with 2 anatomical AIS injury regions. CONCLUSION Patients with high ISS, regardless of the number of anatomical AIS injury regions had significantly longer ICU stays and higher ICU admission ratio. Thus, the ISS may be a better method than the number of anatomical AIS injury regions for predicting the outcomes for multiple-trauma patients. |
Key Words:
Multiple trauma; Intensive care unit; Injury severity score |
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