Raynaud's Phenomenon (RP) is the most common vasospastic disorder encountered by hand
surgeons with an estimated prevalence of 5% in the general population. It's manifestations
are broad, and can range from minor to severe. Sometimes it can be refractory to treatments.
The goal of this study is to evaluate the efficacy of Botulinum toxin (BT) in the treatment
of treatment refractory RP by objective and subjective measures.