救急車搬送患者の搬送時間と自宅退院率の関係

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  • The Relationship Between EMS Transportation Time and 30-day Discharge Rates for Patients with Severe Disease

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Objective: To clarify the relationship between EMS transportation time and 30-day survival and discharge rates from hospital to home, we evaluated 1, 057 patients (consisting of acute myocardial infarction: 201 cases, unstable angina pectoris: 49 cases, subarachnoid hemorrhage: 217 cases, cerebral infarction: 405 cases, cerebral hemorrhage: 114 cases and gastrointestinal bleeding: 45 cases, aortic dissection: 26 cases) transported directly from the scene to 6 hospitals in Kyushu. In the most severe cases of AMI (Forrester classification grade IV), there was a significant correlation between the EMS transportation time and the 30-day discharge rates but not between the time and 30-day survival rate. There was an exponential relationship between the transportation time and hospital discharge after 30 days as y=2.9619e-0.07x (R2=0.9962). In the cases of cerebrovascular attack (CVA) resulting in unconsciousness, mild to moderate cases of AMI and so on, it is possible there were many cases in which the onset time was unclear or the 119 call was delayed. Further investigation is needed. To shorten the transportation time from the island to the mainland hospital, we need to consider again the construction of a bridge link or the use of a helicopter. Conclusion: The shorter the length of time from the telephone call 119 to arrival at the hospital, the higher the 30-day discharge rate from hospital to home in severe cases of AMI.

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