Current opinion in anaesthesiology
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The term 'safe use of anesthesia in children is ill-defined and requires definition of and focus on the 'safe conduct of pediatric anesthesia'. ⋯ This initiative addresses the well known perioperative risks in young children, perioperative causes for cerebral morbidity as well as gaps in regulations, teaching and research. Defining the 'who', 'where', 'when' and 'how' in this context provides the framework for the safe conduct of pediatric anesthesia.
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Curr Opin Anaesthesiol · Jun 2015
ReviewThe role of cardiac output monitoring in obstetric anesthesia.
Haemodynamic monitoring in obstetric patients has evolved during the last decade, with the development of minimally invasive and noninvasive continuous cardiac output (CO) monitors. This review focuses on recent articles that improve our understanding of physiology and haemodynamic changes during spinal anaesthesia in healthy pregnant women, and pathophysiology in women with preeclampsia and other cardiovascular disease. ⋯ In healthy women, left lateral tilt remains an important clinical intervention during caesarean delivery, and phenylephrine is an essential early adjunct to fluid therapy. Noradrenaline may have a clinical benefit in selected patients. Carbetocin has similar haemodynamic effects to oxytocin. Haemodynamic changes associated with delivery per se may be minor compared with those due to oxytocin. Uncomplicated severe preeclampsia is usually associated with a normal to raised CO. Early-onset preeclampsia may be associated with more vasoconstriction and lower CO than late-onset disease. Passive leg raising may be useful to judge fluid responsiveness, and lung ultrasound may predict pulmonary oedema in preeclampsia. Further research is warranted to study the area of circulatory changes during delivery and the postpartum period, in healthy and preeclamptic women.
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Curr Opin Anaesthesiol · Jun 2015
ReviewPostcaesarean section analgesia: are opioids still required?
The use of opioids for postoperative pain relief after caesarean section is widely spread. Because of unwanted well known side-effects, alternative drugs and methods of pain relief have been introduced, either in addition to or instead of opioids. Can postcaesarean analgesia be achieved these days without opioids? ⋯ The dependency on opioids for postcaesarean analgesia is diminishing, but in order to develop effective, well tolerated alternatives, more research is needed.In the meantime, opioids are here to stay.
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Curr Opin Anaesthesiol · Jun 2015
ReviewIntraoperative hypotension in neonates: when and how should we intervene?
Organ hypoperfusion remains an important cause of postoperative morbidity in neonates. Blood pressure (BP) is frequently mistakenly used as a surrogate of organ perfusion and the predictive value of BP for outcome is unclear. The current article will focus on the role of BP in the optimization of organ perfusion during anaesthesia in neonates. ⋯ Anaesthetic management should focus on optimizing organ perfusion and not merely on maintaining a particular BP. A collaborative approach is recommended. The carbon dioxide tension is crucial to perfusion in the presence of cardiovascular shunts.
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Spinal anesthesia has long been described as a well-tolerated and effective means of providing anesthesia for infants undergoing lower abdominal surgery. Now, spinal anesthetics are being used for an increasing variety of surgeries previously believed to require a general anesthetic. This, along with increasing concerns over the neurocognitive effects of general anesthetics on developing brains, suggests that further exploration into this technique and its effects is essential. ⋯ Early findings of spinal anesthesia exposure in infancy have shown it to have no independent effect on neurocognitive delay as well as to provide sound cardiorespiratory stability. With safer means of administering a spinal anesthetic, such as with ultrasound guidance, it is a readily available and desirable tool for those providing anesthesia to infants.