Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Quality of recovery is a complex construct whose definition is influenced heavily by the opinions and biases of the individual patient, clinician, or institution. Asa result, recovery assessment tools differ in their fundamental definitions of recovery, breadth, and assessment time frame. Accurate assessment of recovery is essential as suboptimal recovery has both economic and prognostic implications. ⋯ Ideally, recovery measures should assess outcomes in a simple dichotomous fashion and maintain relevancy by assessing in multiple domains at various time points. Assessment of recovery in a dichotomous fashion also has both clinical and research applications. It allows identification of suboptimal recovery at both individual and group levels,respectively, and when performed in real time, it allows the opportunity for timely targeted intervention specific to individual patients as well as for resource rationalization.
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The purpose of this paper is to review the current evidence relating anesthetic depth to long-term survival after surgery. ⋯ The available evidence on anesthetic depth and long-term survival is inconclusive. Randomized controlled trials with carefully controlled arterial blood pressure are required.
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Review
Can anesthetic-analgesic technique during primary cancer surgery affect recurrence or metastasis?
Mortality among cancer patients is more commonly due to the effects of metastasis and recurrence as opposed to the primary tumour. Various perioperative factors have been implicated in tumour growth, including anesthetic agents and analgesia techniques. In this narrative review, we integrate this information to present a summary of the best available evidence to guide the conduct of anesthesia for primary cancer surgery. ⋯ Current laboratory research suggests that perioperative interventions may impact recurrence or metastasis through effects on cancer cell signalling, the immune response, or modulation of the neuroendocrine stress response. Further evidence is awaited from prospective randomized-controlled trials. Meanwhile, with limited data upon which to make strong recommendations, anesthesiologists should seek optimal anesthesia and analgesia for their patients based on individual risk-benefit analysis and best available evidence on outcomes other than cancer recurrence.
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The goal of this narrative review is to consider and categorize the clinically relevant outcomes that have been previously investigated in neuroanesthesia and to propose the essential outcomes and directions that deserve priority in clinical care and future outcome-oriented research. ⋯ Future endeavours in neuroanesthesia research should advocate prospective randomized trials that focus on long-term neurologic outcomes. These initiatives will require coordination of multiple centres through a clinical trials network.
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The purpose of this report is to facilitate an understanding of the possible application of xenon for neuroprotection in critical care settings. This narrative review appraises the literature assessing the efficacy and safety of xenon in preclinical models of acute ongoing neurologic injury. ⋯ According to the evidence to date, the neuroprotective efficacy of xenon in preclinical models and its safety in clinical anesthesia set the stage for the launch of randomized clinical trials to determine whether these encouraging neuroprotective findings can be translated into clinical utility.