Sepsis in the Emergency Department: An Evidence-Based Reappraisal of the “Golden Hour”

Sepsis affects approximately 49 million people and causes about 11 million deaths worldwide each year, with first medical contact frequently occurring in the emergency department (ED). Over the past decade, the practical meaning of sepsis “time sensitivity” has evolved, and the traditional “golden hour” has shifted from a single bundle toward several distinct evidence streams. We synthesize post-2014 randomized trials, individual-patient-data meta-analyses, and large observational cohorts identified through a structured search of PubMed, Scopus, and Web of Science from 1 January 2014 to 31 May 2026. The search combined controlled-vocabulary and free-text terms related to sepsis, the ED setting, and the review's clinical themes, while landmark earlier trials were identified through hand-searching. Timely recognition and administration of appropriate antibiotics are consistently associated with mortality. In a 49,331-patient New York State cohort, each hour of delay in completing the 3-hour bundle was associated with a 4% relative increase in mortality, whereas the timing of the initial fluid bolus was not. The CLASSIC and CLOVERS trials showed similar mortality with restrictive and liberal fluid strategies in average patients, although initial resuscitation remains necessary in patients with hypoperfusion. Early norepinephrine in CENSER accelerated shock control, while ANDROMEDA-SHOCK supported capillary refill time as a reasonable adjunct to lactate-guided resuscitation. For ED clinicians, the evidence supports three priorities: timely recognition and appropriate antibiotic administration, individualized titration of fluids and vasopressors, and transition to structured post-sepsis follow-up. The “golden hour” is therefore best understood as a debated and evolving construct rather than a single fixed bundle.