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Assessment of tissue oxygenation to personalize mean arterial pressure target in patients with septic shock.
- Source :
-
Microvascular research [Microvasc Res] 2020 Nov; Vol. 132, pp. 104068. Date of Electronic Publication: 2020 Aug 30. - Publication Year :
- 2020
-
Abstract
- Objective: To investigate whether assessment of tissue oxygenation could help personalizing the mean arterial pressure (MAP) target in patients with septic shock.<br />Methods: We prospectively measured near-infrared spectroscopy variables in 22 patients with septic shock receiving norepinephrine with a MAP>75 mmHg within the first six hours of intensive care unit (ICU) stay for patients with community-acquired septic shock and within the first six hours of resuscitation for patients with ICU-acquired septic shock. All measurements were performed at MAP>75 mmHg ("high-MAP") and at MAP 65-70 mmHg ("low-MAP") after decreasing the norepinephrine dose. Relative changes in StO <subscript>2</subscript> recovery slope (RS) >8% were considered clinically relevant.<br />Results: After decreasing the norepinephrine dose by 45 ± 24%, MAP significantly decreased from 81[78;84] to 68[67;69]mmHg, whereas cardiac index did not change. On average, the StO <subscript>2</subscript> -RS significantly decreased between high and low-MAP from 2.86[1.87;4.32] to 2.41[1.14;3.72]%/sec with a large interindividual variability: the StO <subscript>2</subscript> -RS decreased by >8% in 14 patients, increased by >8% in 4 patients and changes were < 8% in 4 patients. These changes in StO <subscript>2</subscript> -RS were correlated with the StO <subscript>2</subscript> -RS at low-MAP (r = 0.57,p = 0.006). At high-MAP, there was no difference between patients exhibiting a relevant decrease or increase in StO <subscript>2</subscript> -RS.<br />Conclusions: A unique MAP target may not be suitable for all patients with septic shock as its impact on peripheral oxygenation may widely differ among patients. It could make sense to personalize MAP target through a multimodal assessment including peripheral oxygenation.<br />Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: JLT and XM are members of the medical advisory board of Pulsion Medical Systems. The other authors have no conflict of interest to declare.<br /> (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Subjects :
- Aged
Clinical Decision-Making
Female
Humans
Male
Middle Aged
Norepinephrine administration & dosage
Predictive Value of Tests
Prospective Studies
Resuscitation
Shock, Septic metabolism
Shock, Septic physiopathology
Shock, Septic therapy
Time Factors
Treatment Outcome
Vasoconstrictor Agents administration & dosage
Arterial Pressure drug effects
Oxygen Consumption
Shock, Septic diagnosis
Spectroscopy, Near-Infrared
Subjects
Details
- Language :
- English
- ISSN :
- 1095-9319
- Volume :
- 132
- Database :
- MEDLINE
- Journal :
- Microvascular research
- Publication Type :
- Academic Journal
- Accession number :
- 32877698
- Full Text :
- https://doi.org/10.1016/j.mvr.2020.104068