💦 Botulinum Toxin for Hyperhidrosis Simulator

Intradermal Grid Injection Mapping

Short placeholder sentence about grid-spaced injections.

• ~1-2 cm: Grid spacing (placeholder note)
• Intradermal: Depth (placeholder note)
• 10-20: Sites/session (placeholder note)
• ~2-5 U: Dose/site (placeholder note)

Iodine-starch test guides injection map

Placeholder line: Minor test stains sweaty skin before grid is drawn.

Axilla vs palm technique differs

Placeholder line: Palms need more sites and cooling due to pain.

Light Chain Cleaves SNAP-25

Short placeholder sentence about SNARE protein cleavage.

• SNAP-25: Target protein (placeholder note)
• Serotype A: Toxin type (placeholder note)
• Zinc protease: Mechanism (placeholder note)
• 2-4 days: Onset (placeholder note)

Heavy chain binds and internalizes toxin

Placeholder line: Receptor binding triggers endocytosis into neuron.

Light chain escapes into cytosol

Placeholder line: Translocation releases protease into terminal.

Blocking Vesicle Fusion and ACh Release

Short placeholder sentence about acetylcholine blockade.

• Acetylcholine: Neurotransmitter (placeholder note)
• Sympathetic cholinergic: Fiber type (placeholder note)
• Up to ~90%: Block level (placeholder note)
• ~2 weeks: Peak effect (placeholder note)

SNAP-25 cleavage stops SNARE complex

Placeholder line: Vesicles cannot dock without intact SNAP-25.

Exocytosis of ACh halts at synapse

Placeholder line: No neurotransmitter reaches gland receptors.

Eccrine Gland Loses Cholinergic Drive

Short placeholder sentence about sweat gland denervation.

• Eccrine sweat gland: Gland type (placeholder note)
• Muscarinic M3: Receptor (placeholder note)
• ~80-90%: Sweat reduction (placeholder note)
• 2-4 days: Onset window (placeholder note)

Secretory cells stop responding

Placeholder line: Without ACh, glands cannot activate secretion.

Clinical dryness follows chemodenervation

Placeholder line: Patient-reported dryness tracks blockade level.

Effect Duration and Re-treatment Interval

Short placeholder sentence about duration and re-dosing.

• ~6 months: Axilla duration (placeholder note)
• ~4-5 months: Palm duration (placeholder note)
• Sweat returns: Re-treat trigger (placeholder note)
• ~2: Sessions/year (placeholder note)

Axon sprouting restores nerve terminals

Placeholder line: New synapses regrow, ACh release resumes.

Re-injection restores blockade level

Placeholder line: Repeat dosing renews the SNARE cleavage cycle.