Current opinion in anaesthesiology
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For most anaesthesiologists, the clinical experience with general anaesthesia for caesarean section is very low. General anaesthesia is mostly performed for emergency grade 1 caesarean section and due to a lack of time to apply a neuraxial anaesthesia technique. Unfortunately, the majority of anaesthesiologists rely on historical and partly outdated approaches in this stressful situation. We propose an evidence-based approach to general anaesthesia for caesarean section. ⋯ We present a review of recent evidence on general anaesthesia for caesarean section.
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Curr Opin Anaesthesiol · Jun 2015
ReviewAnesthesiological considerations for children with obstructive sleep apnea.
To summarize recent evidence-based data regarding outcomes associated with children who have obstructive sleep apnea (OSA). ⋯ Perioperative deaths in children with OSA occur at a low frequency. Hypoxia-induced opioid sensitivity combined with an approximate 1-2% incidence of rapid conversion of codeine to morphine suggest the need for new approaches for providing preoperative assessment of risk, extended postoperative observation and the need for alternative opioids to codeine. Additionally, new less painful surgical approaches may help to reduce postoperative opioid requirements and therefore perhaps less risk for opiate-induced apnea in this vulnerable population.
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Curr Opin Anaesthesiol · Jun 2015
ReviewMaternal critical care: 'one small step for woman, one giant leap for womankind'.
The purpose of this study is to outline the challenges of looking after women who either become or are at a risk of becoming critically ill during pregnancy. ⋯ In this review, we identify the need for maternal critical care, explore different models of its provision and outline possible benefits and barriers to its future implementation.
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The expected difficult airway in children is a rare, but predictable entity, which can lead to life-threatening situations, when sufficient oxygenation and ventilation cannot be achieved. This review gives an overview on current techniques and recommendations on where, who, when, and how to treat children with expected difficult airway. ⋯ The expected difficult airway in children is predictable by clinical signs and medical history in most of the cases and therefore anticipative. It should always be managed in specialized centers. In emergency situations, optimized face mask ventilation (aided by an oropharyngeal/nasopharyngeal airway) or ventilation via supraglottic airway devices or a nasopharyngeal tube can be most helpful skills until definitive airway management is available. These emergency techniques should be taught regularly in all anesthesia departments where children present for elective and nonelective surgery.
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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.