Anaesthesia
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Comparative Study
Clinical validation of bioreactance for the measurement of cardiac output in pregnancy.
Maternal cardiac dysfunction is associated with pre-eclampsia, fetal growth restriction and haemodynamic instability during obstetric anaesthesia. There is growing interest in the use of non-invasive cardiac output monitoring to guide antihypertensive and fluid therapies in obstetrics. The aim of this study was to validate thoracic bioreactance using the NICOM® instrument against transthoracic echocardiography in pregnant women, and to assess the effects of maternal characteristics on the absolute difference of stroke volume, cardiac output and heart rate. ⋯ Similar results were found when the analyses were confined to each individual trimester. The absolute difference between NICOM and echocardiography was not affected by maternal age, weight, height, race, systolic or diastolic blood pressure. In conclusion, NICOM demonstrated good agreement with echocardiography, and can be used in pregnancy for the measurement of cardiac function.
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Emergency laparotomy is associated with high mortality. Implementation of an evidence-based care bundle has been shown to improve patient outcomes. A quality improvement project to implement a six-component care bundle was undertaken between July 2015 and May 2018. ⋯ Full bundle compliance improved from < 60% to > 80% for all patients, with improvement in application of all individual bundle components. This study provides further evidence that outcomes for high-risk surgical patients can be improved with an evidence-based care bundle, but attention must be paid to maintaining bundle compliance. Issues around sustaining improvement must be considered from project initiation.