PMC6349972_01
Barbeau test shows a D waveform recorded through the pulse oximeter. It demonstrates a loss of pulse tracing without recovery within 2 min (yellow line at the bottom).
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Barbeau test showing a type D waveform (Figure 1), which is a contraindication to TRA. Both high risk of bleeding to FA and the contraindication to the TRA forced us to find another possible arterial access with less risk of complications.
The 4 F sheath placed in the distal radial artery at the site of the anatomical snuffbox.
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After a 4-French sheath was inserted (Figure 2), another bolus of nitroglycerin (200 mug) and heparin (2000 IU) were administered intra-arterially on the basis of our institutional protocol.
(a) TR band placement at the site of the vascular access, (b) insufflation of air, (c) removal of the sheath and (d) final result in the absence of bleeding.
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Hemostasis was obtained with the TR band injecting 7 cm of air, deflating 1 cm every 5 min on the basis of our protocol for RA (Figure 3).
PMC6349972_02