miércoles, 23 de noviembre de 2016

Más de obstetricia / More on obstetrics

Noviembre 23, 2016. No. 2517

Evaluando la altura del bloqueo en cesárea en las últimas tres décadas: tendencias en la literatura
Assessing the height of block for caesarean section over the past three decades: trends from the literature.
Anaesthesia. 2015 Apr;70(4):421-8. doi: 10.1111/anae.12927. Epub 2014 Nov 10.
There are multiple methods of assessing the height of block before caesarean section under regional anaesthesia, and surveys of practice suggest considerable variation in practice. So far, little emphasis has been placed on the guidance to be gained from published research literature or textbooks. We therefore set out to investigate the methods of block assessment documented in published articles and textbooks over the past 30 years. We performed two searches of PubMed for randomised clinical trials with caesarean section and either spinal anaesthesia or epidural anaesthesia as major Medical Subject Headings. A total of 284 papers, from 1984 to 2013, were analysed for methods of assessment of sensory and motor block, and the height of block deemed adequate for surgery. We also examined 45 editions of seven anaesthetic textbooks spanning 1950-2014 for recommended methods of assessment and height of block required for caesarean section. Analysis of published papers demonstrated a wide variation in techniques, though there has been a trend towards the increased use of touch, and an increased use of a block height of T5 over the study period. Only 115/284 (40.5%) papers described the method of assessing motor block, with most of those that did (102/115; 88.7%) describing it as the 'Bromage scale', although only five of these (4.9%) matched the original description by Bromage. The required height of block recommended by textbooks has risen over the last 30 years to T4, although only four textbooks made any recommendation about the preferred sensory modality. The variation in methods suggested by surveys of practice is reflected in variation in published trials, and there is little consensus or guidance in anaesthetic textbooks.
Anestesia regional en pacientes con hipertensión inducida por el embarazo
Regional anesthesia in patients with pregnancy induced hypertension.
J Anaesthesiol Clin Pharmacol. 2013 Oct;29(4):435-44. doi: 10.4103/0970-9185.119108.
Pregnancy induced hypertension is a hypertensive disorder, which occurs in 5% to 7% of all pregnancies. These  parturients  present to the labour and delivery unit ranging from gestational hypertension to HELLP syndrome. It is essential to understand the various clinical conditions that may mimic preeclampsia and the urgency of cesarean delivery, which may improve perinatal outcome. The administration of general anesthesia (GA) increases morbidity and mortality in both mother and baby. The provision of regional anesthesia when possible maintains uteroplacental blood flow, avoids the complications with GA, improves maternal and neonatal outcome. The use of ultrasound may increase the success rate. This review emphasizes on the regional anesthetic considerations when such parturients present to the labor and delivery unit.
KEYWORDS: Anesthesia; hypertension; pregnancy; regional
Segundo Curso-Taller de Anestesia y Dolor
Zapopan Jalisco, México
Dic 1-2, 2016
California Society of Anesthesiologists
Annual Meeting April 27-30, 2017
San Francisco California
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Anestesiología y Medicina del Dolor

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