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AUTHORS: da Silva Ramos, et al Anesthesia & Analgesia: January 2018 – Volume 126 – Issue 1 – p 102–110 BACKGROUND: Electrical impedance tomography (EIT) is a noninvasive imaging method that identifies changes in air and blood volume based on thoracic impedance changes. Recently, there has been growing interest in EIT to measure stroke volume (SV). The […]
Read MoreAUTHORS: Esses, Gary, MD et al Anesthesia & Analgesia: January 2018 – Volume 126 – Issue 1 – p 39–45 BACKGROUND: Aortic valve replacement is a high-risk surgery (3%–5%, 30-day mortality) performed on approximately 30,000 elderly patients a year in the United States. Currently, preoperative risk assessment is based on a composite of medical examination and a […]
Read MoreAuthor: Simon Gelman, M.D., Ph.D., F.A.N.Z.C.A. Anesthesiology published on May 30, 2018. Aortic cross-clamping (AoX) and unclamping are associated with severe hemodynamic disturbances in virtually all organs and systems. The main hemodynamic changes induced by AoX result from an increase in impedance to aortic flow, an increase in systemic vascular resistance and afterload, blood volume redistribution […]
Read MoreA recent drop in stillbirths and newborn deaths in the United States might be linked to an increase in term or near-term births, a new study suggests. The study, published Monday in the journal JAMA Pediatrics, looked at more than 99% of US live births and stillbirths between 2007 and 2015 using data from the […]
Read MoreAuthors: Kyoung-Ho Ryu, M.D. et al Anesthesiology 6 2018, Vol.128, 1092-1098. Background: Minimum alveolar concentration (MAC) has traditionally been used to compare the potency of volatile anesthetics. However, as it reflects the spinal mechanism of immobility rather than the cerebral mechanism of analgesia and hypnosis, it is doubtful that equi-MAC connotes equivalent analgesic or hypnotic potency. […]
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