台灣在105年國人10大死因心臟疾病與意外事故造成死亡達16%，隨著時代日新月異，到院前緊急救護技術的進步與急救的水準提高，使得到院前心肺功能停止(OHCA)的急救成功率明顯的上升。 然而到院前心肺功能停止是否能成功拯救影響因子相當多，包含病患的身體狀況、早期的辨識與求救、民眾第一時間胸部按壓(CPR)、緊急救護技術員(EMT)的急救處置與反應時間長短、是否為可以除顫電擊的心律、醫院的急救能力等級與後續照顧等等許多因素。故針對高雄市政府消防局106年處置之到院前心肺功能停止患者為研究對象，透過文獻探討、獨立樣本T檢定、統計軟體SPSS 20.0敘述統計及卡方檢定以分析相關實際案例，將到院前心肺功能停止案件討論區分為患者屬性、EMT出勤人數與處置內容、自動體外去顫器(AED)有無去顫電擊、救護各項反應時間等多項變數，期待找出到院前心肺功能停止急救成功之最相關因子。

研究結果顯示「救護反應時間」、「救護總時間」、「EMT出勤人數」、「高級救護技術員(EMT-P)給藥」、「AED去顫電擊」及「專責救護隊等級」，以上6個因子對患者到院後是否能恢復恢復自主循環(ROSC)有明顯的相關性，所以縮短救護反應時間及救護總時間、儘早使用AED去顫電擊、EMT-P給藥及增設高級專責救護隊，對於OHCA患者之ROSC可獲得最明顯的提升，值得相關單位重視及參考。

The death numbers due to “heart diseases” and “accidents” account for 16% among the top 10 death causes of Taiwanese death numbers in 2016. However, the survival rate of out-of-hospital cardiac arrest (OHCA) is improving significantly due to advanced techniques and pre-hospital emergency medical services (EMS). In addition, the survival rate of OHCA also rely on the following factors such as patient baseline conditions, early recognition, early access, early bystander CPR (cardiac pulmonary resuscitation), EMT (emergency medical technician) first-responding intervention and time, early defibrillation, capability of receiving hospital, and post-arrest care. Through a retrospective cohort study from 2110 OHCA registered datasets administrated by Kaohsiung City Fire Bureau and literature reviews, current paper analyzes the correlations among 13 variables affiliated with ROSC (return of spontaneous circulation) in application of independent sample T-tests, chi-square tests and logistic regression methods provided by SPSS 20.0.

Conclusions of current investigation indicate that the following 6 variables-“responding time”, “total case time”, “number of EMT on OHCA”, “EMT-Paramedic medication intervention”, “defibrillation delivery on OHCA” and “Dedicated EMS Team” are significantly related with ROSC outcome in hospital. Therefore, current study suggests that shorter responding time and total cases time; enhancement on early defibrillation and EMT-paramedic medication intervention in non-trauma OHCA patients can improve the OHCA survival rate significantly. It is worthy investing resources on those factors for the authorities to take actions.