What Are The Signs Of Subclavian Steal Syndrome?

Arm Claudication

Claudication is a term used to describe when an individual feels muscle cramping, muscle pain, and muscle fatigue when they are physically using their muscles. Claudication has been described by affected individuals as many different sensations in the muscle, including weakness, tiredness, aching, heaviness, deadweight feeling, and burning. These symptoms tend to manifest when the muscles of the affected part of the individual's body are being exercised and dissipate within a couple of minutes at rest. Arm claudication is a symptom that can develop in a subclavian steal syndrome patient because the blood flow to the muscles and nerves in the affected arm has been obstructed. When the muscles do not receive enough oxygen, they have to carry out energy-making processes in a different way than they usually would. This secondary energy-producing mechanism in the muscle cells is not nearly as efficient and produces different byproducts than the primary mechanism, which causes the patient to experience arm claudication when they are physically using the affected arm.

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