Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Editorial Comment
In asking the right questions, be cautious of confounding by indication.
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Comment Letter
In reply: Why goal-directed hemodynamic therapy is often ineffective and how can we try to improve the results.
Abstract
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Abstract
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Postoperative orthostatic intolerance (OI) can be a major obstacle to early ambulation and its determinants are poorly understood. We aimed to study postoperative changes in vascular tone and their potential association with OI in various orthopedic surgical settings. ⋯ A significantly prolonged decrease in AI and symptoms of OI are common after orthopedic surgery. Nevertheless, an association between the two measures was not observed. While compensatory mechanisms may limit the influence of an AI decrease on symptoms of OI, more research is needed to understand the contributing factors and aid in the identification of patients at risk of OI.