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무수축 또는 무맥성 전기활동 심정지에서 경도 저체온 요법의 의의
이거성,전병조,문정미 대한응급의학회 2008 대한응급의학회지 Vol.19 No.4
Purpose: Therapeutic hypothermia has been recommended for postcardiac arrest coma due to ventricular fibrillation (Vf). However, although it is well known that the cardiac arrest due to non-Vf is associated with poorer neurologic outcome that Vf, there is no study that evaluates the effect of mild hypothermia on the cardiac arrests due to non-Vf. So, we intend whether mild hypothermia would improve the neurologic outcome of them saftly. Methods: We retrospectively analyzed the patients with cardiac arrest due to asystole or pulseless electrical activity who was presented at hopsital and successfully showed the return of spontaneous circulation. We divided the patients to two groups according to implementation of hypothermia and statistically compared the complication and neurologic outcome at discharge. Results: A total of sixty one patients were analyzed in this study. Baseline clinical and physiological characteristic were similar between patients treated with mild hypothermia or with conservative treatment. The complication rate did not differ significantly between the two groups. However, the good outcome at hospital discharge was observed in 13 of 41 patients treated with mild hypothermia compared with 0 of 27 patients treated with conservative treatment. Conclusion: Mild therapeutic hypothermia for the treatment of postcardiac arrest due to non-Vf can be saftly implemented with a major benefit on patient outcome.
이거성,이승한,이길용 한국섬유공학회 2023 Fibers and polymers Vol.24 No.1
We investigated the tunable mechanical properties of Vectran liquid crystal polymer (LCP) short fiber-reinforced soft composite;we varied the relative foam density and the short fiber loading ratio. The microstructures revealed well-defined pores,matrices, and short fibers. We derived the compressive stress–strain responses and stress relaxations and then performeddynamic mechanical analysis (DMA). To investigate dynamic tunability, the abilities of the soft composites to isolate vibrationsfrom 1 to 300 Hz were assessed. We used the generalized Maxwell model to fit the experimental data and to extractmodel parameters. We present a simple, versatile, and cost-effective method for the fabrication of LCP short fiber-reinforcedsoft composites with well-defined and widely tunable mechanical properties. These composites will find applications inmany devices.