Cryoanalgesia to Prevent Acute and Chronic Pain Following Surgery: A Randomized, Double-Masked, Sham-Controlled Study

Mastectomy (subjects 1-18): Myoscience Iovera device: full cryo cycle. Mastectomy (subjects 19-end) and all other procedures: Epimed PainBlocker device: 3 cycles of 2-minute gas activation separated by 1-minute defrost periods with an active probe which results in a decrease in temperature

"Mastectomy (subjects 1-18): Myoscience Iovera device: simulated full cryo cycle without administering gas to the probe.~Mastectomy (subjects 19-end) and all other procedures: 3 cycles of 2-minute gas activation separated by 1-minute defrost periods with a SHAM probe that does not deliver gas to the tip or result in a drop in temperature"