Abstract
BackgroundRadial artery cannulation can cause complications such as haematoma formation or thrombosis due to its small diameter. Recently, a novel ultrasound device equipped with an electromagnetic guidance system was introduced, showing the path and alignment of the needle during the procedure. The aim of this study was to investigate the effects of this novel system on both success and complication rates during radial artery cannulation under ultrasound guidance.MethodsIn this randomized controlled trial, 76 adults scheduled for neurosurgery requiring radial artery cannulation were recruited. In group E (n = 38), radial artery cannulation was performed using the electromagnetic guidance ultrasound system, whereas in group C (n = 38), the procedure was performed using conventional ultrasound guidance. The success rates of cannulation on the first attempt, cannulation times, number of attempts, and incidence of complications were compared between the two groups.ResultsThere was a significant difference in the success rates on the first attempt between the two groups (group C = 78.9% vs. group E = 94.7%, P = 0.042). Incidences of posterior wall puncture and haematoma formation (group C = 8 vs. group E = 1; P = 0.028) were significantly lower in group E than in group C. The median cannulation time for successful attempts was comparable between groups.ConclusionsUse of the novel electromagnetic guidance system resulted in a better success rate on the first attempt and a lower incidence of complications during radial artery cannulation.Trial registrationThis study was registered at http://cris.nih.go.kr (registration number: KCT0002476).
Highlights
Arterial cannulation is a common and important procedure for critically ill patients whose blood pressure must be measured directly and continuously, or when blood samples for laboratory testing must be obtained frequently during surgery or in the intensive care unit [1]
A total of 76 adult patients were included in this study, and all radial artery cannulations were successfully performed
Systolic and diastolic blood pressures measured during arterial cannulation did not differ between the two groups
Summary
Arterial cannulation is a common and important procedure for critically ill patients whose blood pressure must be measured directly and continuously, or when blood samples for laboratory testing must be obtained frequently during surgery or in the intensive care unit [1]. When a small artery is chosen for catheterization or the patient is obese, arterial palpitation is difficult. In such cases, arterial catheterization can fail or cause complications such as thrombosis, haematoma, embolization, arteriovenous fistula, and limb ischaemia [4,5,6]. A physician can identify an artery for catheterization, monitor the needle entering the artery, and confirm the placement of the catheter in the artery [6, 7]. Radial artery cannulation can cause complications such as haematoma formation or thrombosis due to its small diameter. The aim of this study was to investigate the effects of this novel system on both success and complication rates during radial artery cannulation under ultrasound guidance
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