Abstract
INTRODUCTION AND OBJECTIVE: Blood pressure is presumably related to rebleeding and delayed cerebral ischemia (DCI) after subarachnoid hemorrhage (aSAH) and could serve as a target to improve outcome. We assessed the associations between blood pressure and rebleeding or DCI in aSAH-patients.
MATERIALS AND METHODS: In this observational study in 1167 aSAH-patients admitted to the intensive care unit (ICU), adjusted hazard ratio's (aHR) were calculated for the time-dependent association of blood pressure and rebleeding or DCI. The aHRs were presented graphically, relative to a reference mean arterial pressure (MAP) of 100 mmHg and systolic blood pressure (sBP) of 150 mmHg.
RESULTS: A MAP below 100 mmHg in the 6, 3 and 1 h before each moment in time was associated with a decreased risk of rebleeding (e.g. within 6 h preceding rebleeding: MAP = 80 mmHg: aHR 0.30 (95% confidence interval (CI) 0.11-0.80)). A MAP below 60 mmHg in the 24 h before each moment in time was associated with an increased risk of DCI (e.g. MAP = 50 mmHg: aHR 2.59 (95% CI 1.12-5.96)).
CONCLUSIONS: Our results suggest that a MAP below 100 mmHg is associated with decreased risk of rebleeding, and a MAP below 60 mmHg with increased risk of DCI.
Original language | English |
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Article number | 154124 |
Journal | Journal of Critical Care |
Volume | 72 |
DOIs | |
Publication status | Published - Dec 2022 |
Bibliographical note
Funding Information:C.S. Gathier was supported by a grant from the Dutch Heart Foundation (grant 2009B046) and the Netherlands Brain Foundation (grant 2009(1)-72).
Publisher Copyright:
© 2022 The Authors
Copyright:
Copyright 2023 Elsevier B.V., All rights reserved.
Keywords
- Humans
- Subarachnoid Hemorrhage/complications
- Blood Pressure
- Brain Ischemia/complications
- Cerebral Infarction
- Intensive Care Units