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001			ESSALUD
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040			_aBMG
041			_aeng
100			_aThe LOGICAL Investigators and the Australian and New Zealand Intensive Care Society Clinical Trials Group _eAutor _954074
245			_aConservative oxygen for unresponsive patients after cardiac arrest
300			_apáginas: 571-581
520			_aBackground: In patients who are unresponsive after resuscitation from cardiac arrest, limiting oxygen exposure to that necessary to achieve acceptable oxygenation may increase the likelihood of survival with a favorable functional outcome. Methods: We randomly assigned unresponsive adults receiving mechanical ventilation in the intensive care unit (ICU) after cardiac arrest to conservative or liberal oxygen therapy. In the two groups, the default lower limit of arterial oxygen saturation as measured by pulse oximetry (Spo2) was 90%. In the conservative-oxygen group, the alarm for the upper limit of the Spo2 was set at 95%, and the fraction of inspired oxygen (Fio2) was decreased to 0.21 provided that the Spo2 was above the lower limit. In the liberal-oxygen group, there were no measures limiting the upper Spo2, but the minimum Fio2 permitted during mechanical ventilation was 0.3. The primary outcome was survival with a favorable functional outcome at 180 days, assessed with the Extended Glasgow Outcome Scale (GOS-E). Levels on the GOS-E range from 1 (death) to 8 (“upper good recovery”). We defined survival with a favorable functional outcome as a GOS-E level of 5 (“lower moderate disability”) or higher. Results: A total of 1840 patients were recruited from 53 ICUs in Australia, New Zealand, and Ireland, with 882 assigned to conservative oxygen therapy and 958 assigned to liberal oxygen therapy. A favorable functional outcome at 180 days was observed for 313 of 819 patients (38.2%) in the conservative-oxygen group and 353 of 890 patients (39.7%) in the liberal-oxygen group (relative risk, 0.97; 95% confidence interval, 0.87 to 1.09; P=0.65). No adverse events were reported. Conclusions: Among unresponsive adults undergoing mechanical ventilation in the ICU after a cardiac arrest, the percentage who survived with a favorable functional outcome was not higher with conservative oxygen therapy than with liberal oxygen therapy.
650			_aCARDIOLOGÍA _911301
650			_aPARO CARDIACO _911402
650			_aMUERTE CEREBRAL _954075
650			_aCUIDADOS INTENSIVOS _95208
650			_aVENTILACIÓN MECÁNICA _937360
650			_aNEUROLOGÍA
650			_aNEUMOLOGÍA _925628
650			_aMEDICINA CLÍNICA HOSPITALARIA _953754
773	0		_022717 _922644 _dMassachusetts NEJM Group _oNEJM009 _tThe New England Journal of Medicine _wESSALUD _x0028-4793
942			_cARTICULOS _e2026-08-17 _zSQB
999			_c22820 _d22820