British journal of anaesthesia
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Multicenter Study
Perioperative Doppler ultrasound assessment of portal vein flow pulsatility in high-risk cardiac surgery patients: a multicentre prospective cohort study.
Portal vein Doppler ultrasound pulsatility measured by transoesophageal echocardiography is a marker of the haemodynamic impact of venous congestion in cardiac surgery. We investigated whether the presence of abnormal portal vein flow pulsatility is associated with a longer duration of invasive life support and postoperative complications in high-risk patients. ⋯ NCT03656263.
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Multicenter Study
Factors associated with failed epidural blood patch after accidental dural puncture in obstetrics: a prospective, multicentre, international cohort study.
Unsuccessful epidural blood patch is associated with higher lumbar levels, shorter time between puncture & patch, and with patients with migraine history.
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