Forearm Blood Flow Response Before vs After Sympathectomy
Sweating Surgery For Sweaty Palms Cuts Cooling Response In Forearms
A common fix for sweaty palms may leave patients less able to cool off during whole-body heat stress, a new trial finds.
- 10 adults studied
- ~50% less cooling
- 7-week follow-up
Dr. Axe's Take
A 56% drop in forearm blood flow response and a 61-71% drop in sweating tells me this surgery reaches well past the palms and armpits it's meant to treat. I would not tell anyone to avoid or reverse a sympathectomy already planned with their surgeon, that decision stays between patient and doctor. But I would treat heat exposure differently afterward: skip long sauna sessions and hard outdoor labor during peak heat, hydrate with electrolytes before thirst hits, and treat dizziness or unusual fatigue in hot conditions as an early warning, since the normal sweat cue may show up late.
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