Anesthesia and analgesia
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Anesthesia and analgesia · Oct 2022
Observational StudyCharacterizing the Heart Rate Effects From Administration of Sugammadex to Reverse Neuromuscular Blockade: An Observational Study in Patients.
Reversal of neuromuscular blockade (NMB) with sugammadex can cause marked bradycardia and asystole. Administration of sugammadex typically occurs in a dynamic period when anesthetic adjuvants and gas concentrations are being titrated to achieve emergence. This evaluation examined the heart rate (HR) responses to sugammadex to reverse moderate to deep NMB during a steady-state period and sought mechanisms for HR changes. ⋯ Sugammadex to reverse moderate and deep NMB resulted in a fast onset and variable magnitude of HR slowing in patients. A difference in HR slowing as a function of dose did not achieve statistical significance. The observational nature of the investigation prevented a full understanding of the mechanism(s) of the HR slowing.
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Anesthesia and analgesia · Oct 2022
Pro-Con Debate: The Clinical (Ir)relevance of the Lower Limit of Cerebral Autoregulation for Anesthesiologists.
In this Pro-Con commentary article, we discuss whether the lower limit of cerebral autoregulation is clinically relevant for anesthesiologists. The central question regarding this issue is whether mean arterial blood pressure below the lower limit of autoregulation is detrimental for the brain. The Pro side argues that continuous monitoring of cerebral autoregulation has revealed an association between going below the lower limit and mortality in the critically ill patient. Conversely, the Con side argues that cerebral autoregulation is only one of various defense mechanisms of the brain that protect against cerebral hypoperfusion, and that cerebral autoregulation may be more important to protect against intracranial hypertension.
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The provision of health services has been transforming from a largely top-down, paternalistic model into a construct in which patients play a substantive role in decision making over their care. Two articles in this month's issue of Anesthesia & Analgesia and an accompanying editorial address the growing momentum behind transparency in health care. Firstly, Quinonez et al consider the increasing expectation of family presence during surgical procedures and resuscitation of loved ones. ⋯ In conjunction with the increased desire for physical presence of loved ones during clinical procedures, so too is there a demand for complete access to all medical records, including even the arcane hieroglyphics of an anesthesia record as detailed by Ramaswamy et al. As federal law now mandates such access, questions naturally arise as to their utility and medicolegal implications. The reader is strongly encouraged to review the concepts elaborated in these articles for in depth appreciation of their considerations.