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ABSTRACT: Objectives
Mean arterial hypotension between 55 and 65 mm Hg could be tolerated safely in the absence of tissue hypoperfusion, but the consequences on fluid balance and kidney function remain unknown.Design
During a 1-year period, we retrospectively collected data of consecutive septic patients admitted for sepsis with a mean arterial pressure (MAP) less than 65 mm Hg despite fluid resuscitation.Setting
Medical 18-bed ICU in a tertiary teaching hospital.Patients
Septic patients with a MAP less than 65 mm Hg despite initial resuscitation.Interventions
In our ICU, MAP between 55 and 65 mm Hg was tolerated in the absence of peripheral hypoperfusion (permissive hypotension) or corrected using norepinephrine (septic shock group) when peripheral tissue hypoperfusion was present.Measurements and main results
Ninety-four consecutive septic patients were included, 15 in the permissive hypotension group and 79 in the septic shock group. Median age was 66 years (57-77 yr) and 42% were women. The main sources of infection were respiratory (45%) and abdominal (18%). Severity was more important in septic shock group with higher Sequential Organ Failure Assessment score (7 [5-10] vs. 4 [1-6]; p < 0.0001), more frequent organ support therapy and ultimately higher mortality (38 vs. 0%; p < 0.01). The total volume of crystalloids infused before ICU admission was not different between groups (1930 ± 250 vs. 1850 ± 150 mL; p = 0.40). Within the 6 first hours of ICU stay, patients in the permissive hypotension group received less fluids (530 ± 170 vs. 1100 ± 110 mL; p = 0.03) and had higher urinary output (1.4 mL [0.88-2.34 mL] vs. 0.47 mL/kg/hr [0.08-1.25 mL/kg/hr]; p < 0.001). In addition, kidney injury evaluated using KDIGO score was lower in the permissive hypotension group at 48 hours (0 hr [0-1 hr] vs. 1 hr [0-2 hr]; p < 0.05).Conclusions
In septic patients without clinical peripheral hypoperfusion, mean arterial hypotension between 55 and 65 mm Hg could be tolerated safely without vasopressor infusion and was not associated with excessive fluid administration or kidney damage.
SUBMITTER: Lavillegrand JR
PROVIDER: S-EPMC10586843 | biostudies-literature | 2023 Oct
REPOSITORIES: biostudies-literature
Lavillegrand Jean-Rémi JR Blum Laurene L Morin Alexandra A Urbina Tomas T Gabarre Paul P Bonny Vincent V Baudel Jean-Luc JL Guidet Bertrand B Maury Eric E Ait-Oufella Hafid H
Critical care explorations 20231018 10
<h4>Objectives</h4>Mean arterial hypotension between 55 and 65 mm Hg could be tolerated safely in the absence of tissue hypoperfusion, but the consequences on fluid balance and kidney function remain unknown.<h4>Design</h4>During a 1-year period, we retrospectively collected data of consecutive septic patients admitted for sepsis with a mean arterial pressure (MAP) less than 65 mm Hg despite fluid resuscitation.<h4>Setting</h4>Medical 18-bed ICU in a tertiary teaching hospital.<h4>Patients</h4>S ...[more]