Hemostatic Agents
1. Kaolin-Based Hemostatic Agents
(Examples: Combat Gauze, QuikClot EMS Rolled Gauze)
Clinical Rationale (Kaolin-Based):
Kaolin is an inorganic mineral hemostatic that accelerates the body’s natural clotting cascade by activating Factor XII (Hageman factor).
When applied to a bleeding wound, kaolin initiates the intrinsic coagulation pathway, resulting in rapid fibrin formation and stable clot development without generating heat.
Unlike older zeolite-based dressings, kaolin is completely non-exothermic, making it safe for extended wound packing and tissue contact.
It is a Committee on Tactical Combat Casualty Care (CoTCCC)–recommended dressing proven effective in both battlefield and civilian trauma care.
- Triggers rapid clotting through Factor XII activation
- No heat production — safe for direct tissue contact
- Effective in hypothermic and coagulopathic patients
- Durable gauze structure supports pressure dressings
2. Chitosan-Based Hemostatic Agents
(Examples: Celox Gauze, ChitoGauze, HemCon)
Clinical Rationale (Chitosan-Based):
Chitosan is a biopolymer derived from chitin, functioning through a positive-charge (cationic) mechanism that attracts negatively charged red blood cells and platelets.
This ionic reaction forms a gel-like clot that is independent of the body’s normal clotting factors, making it highly effective in patients with hypothermia or anticoagulant use.
Chitosan also has bacteriostatic properties that help reduce infection risk in contaminated wounds.
It is ideal for environments where traditional coagulation may be impaired.
- Functions independently of natural clotting pathways
- Effective in cold or anticoagulated patients
- Forms an immediate mechanical seal on irregular wounds
- Natural, biocompatible, and hypoallergenic
3. Cellulose-Based Hemostatic Agents (WoundClot)
(Examples: WoundClot Cellulose Gauze, WoundClot Battle Gauze)
Clinical Rationale (Cellulose-Based):
WoundClot represents a new generation of biosynthetic cellulose-based hemostats, engineered to form a hydrated, gelatinous matrix upon contact with blood.
This matrix absorbs fluid, stabilizes clot formation, and provides a scaffold for platelet and fibrin bonding.
Unlike other agents, WoundClot maintains its structure for hours, supporting sustained hemostasis under arterial or high-pressure bleeding.
It is completely bio-absorbable and non-allergenic, dissolving naturally within 5–7 days without removal.
- Rapid gel-matrix formation supports durable clot structure
- Fully bio-absorbable — no removal required
- Effective for arterial, venous, and mixed bleeding
- Allergy-safe, non-animal, and non-mineral composition
Clinical Summary
All hemostatic technologies—Kaolin, Chitosan, and Cellulose—share the goal of rapid external hemorrhage control, the leading preventable cause of trauma death.
Each mechanism is suited to specific medical and operational environments:
- Kaolin: Dependable, non-exothermic, CoTCCC-recommended standard for general tactical use.
- Chitosan: Ideal for anticoagulated, cold, or maritime conditions.
- Cellulose (WoundClot): Advanced, bio-absorbable option for high-pressure or surgical-transition wounds.
Selection should be based on environment, casualty physiology, and evacuation timeline. Each mechanism offers unique advantages that complement modern tactical and civilian trauma protocols.
