Pneumatic AntiShock Garment

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Pneumatic Anti-Shock Garment

• Temple College
• EMS Professions

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Pneumatic Anti-Shock Garment

• PASG
• Medical Anti-Shock Trousers
• Military Anti-Shock Trousers
• MAST

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Action

• Applies circumferential pneumatic counterpressure
  to abdomen, lower extremities

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Therapeutic Effects

• Controls external bleeding by direct compression
• Controls internal bleeding under trousers by
• reduction of blood flow
• compression of vessels

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Therapeutic Effects

• Stabilizes fractures
• Pelvis
• Femurs

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Therapeutic Effects

• Increases resistance to blood flow in lower body
• Shunts blood to
• Heart
• Lungs
• Brain
• Produces increased blood flow to critical organs

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Indications

• BP below 80 systolic due to hypovolemia
• Extensive soft tissue trauma to or bleeding from
  abdomen or lower extremities with hypovolemic
  shock
• Pelvic/femur fractures with hypovolemic shock

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Absolute Contraindications

• Pulmonary Edema
• Diaphragmatic Hernia

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Relative Contraindications

• Bleeding above level of suit
• Head trauma
• Thoracic trauma
• Advanced pregnancy (legs only)
• Abdominal evisceration/impaled object (legs only)
• Short transport times (lt30 minutes)

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Removal

• At hospital under supervision of physician who
  understands device
• IVs established
• Surgical team ready
• Abdomen then one leg at a time SLOWLY

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Removal

• Deflation should take 20 - 60 minutes
• If BP drops 4-6 mmHg, discontinue deflation,
  infuse fluid
• If BP drops over 10mmHg, re-inflate
• Unstable patient may need to go to OR with MAST
  in place

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Never deflate entire suit at once