Right subclavian steal

Case contributed by Brendan Cullinane

Presentation

Referral for investigation of markedly lower right brachial artery pressure compared to the left. The patient is a long-term smoker,

Patient Data

Age: 70
Gender: Male
Modality: Ultrasound

Arm artery pressures as follows:                          Right        Left

                                                                Brachial      140           177 mmHg

                                                                Radial         134           172

                                                                Ulnar           129           163

There appeared to be occlusion of the right subclavian artery at its origin with collateralisation of the vertebral arteries. Retrograde flow in the right vertebral artery supplied the right arm.

Case Discussion

Occlusion of the right subclavian artery at its origin caused a right-sided subclavian steal and decreased pressures within the right arm arteries.

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Case Information

rID: 19611
Case created: 28th Sep 2012
Last edited: 5th Feb 2016
System: Vascular
Inclusion in quiz mode: Included

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