Daniel Colon Hidalgo1, Jaimini Patel2, Dalila Masic3, David Park4, Megan A Rech5. 1. Department of Medicine, Loyola University Medical Center, 2160 S 1st Ave, Maywood, IL, USA. Electronic address: daniel.colonhidalgo@lumc.edu. 2. Department of Pharmacy, Loyola University Medical Center, 2160 S 1st Ave, Maywood, IL, USA. Electronic address: jaiminip@umich.edu. 3. Department of Pharmacy, Loyola University Medical Center, 2160 S 1st Ave, Maywood, IL, USA. Electronic address: dalila.masic@luhs.org. 4. Department of Medicine, Loyola University Medical Center, 2160 S 1st Ave, Maywood, IL, USA. Electronic address: david.park@lumc.edu. 5. Department of Pharmacy, Loyola University Medical Center, 2160 S 1st Ave, Maywood, IL, USA; Department of Emergency Medicine, Stritch School of Medicine, Loyola University Chicago, 2160 S 1st Ave, Maywood, IL, USA. Electronic address: mrech@lumc.edu.
Abstract
PURPOSE: Mortality rate for septic shock, despite advancements in knowledge and treatment, remains high. Treatment includes administration of broad-spectrum antibiotics and stabilization of the mean arterial pressure (MAP) with intravenous fluid resuscitation. Fluid-refractory shock warrants vasopressor initiation. There is a paucity of evidence regarding the timing of vasopressor initiation and its effect on patient outcomes. MATERIALS AND METHODS: This retrospective, single-centered, cohort study included patients with septic shock from January 2017 to July 2017. Time from initial hypotension to vasopressor initiation was measured for each patient. The primary outcome was 30-day mortality. RESULTS: Of 530 patients screened,119 patients were included. There were no differences in baseline patient characteristics. Thirty-day mortality was higher in patients who received vasopressors after 6 h (51.1% vs 25%, p < .01). Patients who received vasopressors within the first 6 h had more vasopressor-free hours at 72 h (34.5 h vs 13.1, p = .03) and shorter time to MAP of 65 mmHg (1.5 h vs 3.0, p < .01). CONCLUSION: Vasopressor initiation after 6 h from shock recognition is associated with a significant increase in 30-day mortality. Vasopressor administration within 6 h was associated with shorter time to achievement of MAP goals and higher vasopressor-free hours within the first 72 h.
PURPOSE: Mortality rate for septic shock, despite advancements in knowledge and treatment, remains high. Treatment includes administration of broad-spectrum antibiotics and stabilization of the mean arterial pressure (MAP) with intravenous fluid resuscitation. Fluid-refractory shock warrants vasopressor initiation. There is a paucity of evidence regarding the timing of vasopressor initiation and its effect on patient outcomes. MATERIALS AND METHODS: This retrospective, single-centered, cohort study included patients with septic shock from January 2017 to July 2017. Time from initial hypotension to vasopressor initiation was measured for each patient. The primary outcome was 30-day mortality. RESULTS: Of 530 patients screened,119 patients were included. There were no differences in baseline patient characteristics. Thirty-day mortality was higher in patients who received vasopressors after 6 h (51.1% vs 25%, p < .01). Patients who received vasopressors within the first 6 h had more vasopressor-free hours at 72 h (34.5 h vs 13.1, p = .03) and shorter time to MAP of 65 mmHg (1.5 h vs 3.0, p < .01). CONCLUSION: Vasopressor initiation after 6 h from shock recognition is associated with a significant increase in 30-day mortality. Vasopressor administration within 6 h was associated with shorter time to achievement of MAP goals and higher vasopressor-free hours within the first 72 h.
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