During ultrasound-guided compression of a pseudoaneurysm, which technique is NOT recommended?

In the context of ultrasound-guided compression of a pseudoaneurysm, option C, which involves checking for biphasic flow in the pseudoaneurysm, is not recommended. This is because the goal during compression is to occlude the pseudoaneurysm effectively and promote thrombosis within it. Observing for biphasic flow, which indicates that blood is still flowing in and out of the pseudoaneurysm, could lead to confusion about the effectiveness of the compression. Instead, clinicians focus on monitoring for signs of successful occlusion, such as the absence of flow, rather than the presence of biphasic flow.

In this situation, other options present valid monitoring techniques during the procedure. Monitoring ankle pressure helps assess the perfusion status of the limb, while using color flow imaging allows for real-time visualization of blood flow, which aids in determining whether the compression is successful. Continuous release of pressure would defeat the purpose of the procedure, as the aim is to maintain consistent pressure to adequately occlude the pseudoaneurysm. Hence, checking for biphasic flow directly contradicts the primary objective of the compression technique.