Title: Hair Apposition Wound Closure<br/>Author: To-Lam Nguyen<br/><a href='http://umem.org/profiles/resident/2182/'>[Click to email author]</a><hr/><p>
It's back to school season which means back to school injuries! </p>
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Scalp lacerations often require suturing or staple closure, but what if you can close the wound without any sharps that scare the kiddos? Consider using the Hair Apposition Technique (HAT)!</p>
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<strong>What is HAT?</strong></p>
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- A very quick and easy technique for superficial scalp laceration closure made by twisting hair on each side of the laceration and sealing the twist with a small dot of glue for primary closure. </p>
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<strong>When do I consider HAT?</strong></p>
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- For linear, superficial lacerations that are <10cm in length </p>
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- Laceration has achieved adequate hemostasis</p>
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- Patient has hair on both sides of the laceration</p>
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<strong>What are contraindications to HAT? </strong></p>
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- Hair strands are less than 3cm in length</p>
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- Laceration is longer than 10cm in length</p>
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- Active bleeding from laceration despite hair apposition</p>
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- Significant wound tension</p>
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- Laceration is highly contaminated</p>
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<strong>How do I perform HAT?</strong></p>
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- Debride wound as you normally wound for any laceration </p>
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- Take approximately 5 strands of hair on one side of the laceration and twist them together to make one twisted bundle</p>
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- Take approximately 5 strands of hair directly on the other side of the laceration and twist them together to make another twisted bundle</p>
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- Then take each bundle and intertwine the two bundles until the wound edges appose. </p>
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- Place a drop of glue on the twist</p>
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- Repeat along the length of the laceration until laceration is closed</p>
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<b>Benefits of HAT:</b></p>
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- Based on a RCT from Singapore that compared suturing to HAT for superficial scalp lacerations that were <10cm, patient's were more satisfied, had less scaring, lower pain scores, shorter procedure tiems, adn less wound breakdown in the HAT group compared to the sutured group. </p>
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- A follow up study by the same group also assessed cost-effectievness of HAT compared to suturing (by taking into account staff time, need for staple/suture removal, treatment of complications, materials, etc) and found that HAT saved $28.50 USD when compared to suturing. </p>
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<img alt="Image" src="https://www.uptodate.com/contents/images/EM/63626/Hairapposition.jpg" /></p>
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<span style="font-size:10px;"><span font-weight:="" helvetica="" kufi="" noto="" style="color: rgb(35, 35, 35); font-family: ">Modified hair apposition of scalp wounds- UpToDate</span></span></p>
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<u><strong>Bottom Line:</strong></u></p>
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<b>- </b>Consider <b>Hair Apposition Technique (HAT) </b>for linear, superficial scalp lacerations, especially in pediatric patients as it is much more well tolerated (can also do this in adults!)</p>
<fieldset><legend>References</legend>
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<span style="color: rgb(30, 30, 30); font-size: 12px;">Ong ME. “A randomized controlled trial comparing the hair apposition technique with tissue glue to standard suturing in scalp lacerations (HAT study).” Annals of Emergency Medicine. July 2002. 40:1. 19-26.</span></h1>
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Ong ME. “Cost-effectiveness of hair apposition technique compared with standard suturing in scalp lacerations.” Annals of Emergency Medicine. 2005 Sept; 46(3):237-42.</p>
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Trick of the Trade: Hair apposition technique (HAT trick)- https:/www.aliem.com/trick-of-trade-hair-apposition/</p>
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