Isoproterenol infusion and microcirculation in septic shock.
Year: 2014
Type: article
Study design: Observational Study
Abstract: INTRODUCTION: Our study primarily aimed at investigating the effect of isoproterenol infusion on tissue oxygen saturation in patients with septic shock. The secondary aim was to assess the relation between cardiac index, central venous oxygen saturation and tissue oxygen saturation. METHODS: This retrospective study was conducted from December 2010 to March 2012. We included 14 consecutive patients with septic shock treated with isoproterenol. All patients were monitored by cardiac index and tissue oxygen saturation. From medical charts, routine hemodynamic data were extracted one hour before and six hours after the onset of isoproterenol infusion. RESULTS: From baseline to H6, tissue oxygen saturation levels rise from 78 [72-82]% to 85 [78-88]% (p = 0.03). Isoproterenol infusion was associated with an increase of central venous oxygen saturation (from 67 [65-74]% to 84 [77-86]%, p = 0.02) and cardiac index (from 2.9 [2.7-3.1] L/min/m² to 3.9 [3.0-4.4] L/min/m², p = 0.006). Tissue oxygen saturation was correlated neither to cardiac index (p = 0.14, R(2) = 0.08) nor to central venous oxygen saturation (p = 0.19, R(2) = 0.10). CONCLUSIONS: Use of isoproterenol was associated with an increase of tissue oxygen saturation. This increase was not correlated to cardiac index, suggesting a decoupling between macrocirculation and microcirculation.
Source: Europe PMC (PubMed Central)
Authors: S Wiramus, J Textoris, R Bardin, C Vigne, C Kelway, C Martin, M Leone
Institutions: Assistance Publique Hôpitaux de Marseille, Hôpital Nord
Language: English
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2108187237