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Effect of Botulinum Toxin A on the Sensory and Nociceptive Thresholds of Human Trapezius Muscle

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Abstract

º¸Åø¸®´® µ¶¼Ò´Â ±Ù½Å°æ ¸»´Ü¿¡¼­ ½Å°æ Àü´Þ ¹°ÁúÀÇ ºÐºñ¸¦ Â÷´ÜÇÏ¿© ±Ù¼öÃàÀ» ¾ïÁ¦½ÃÅ°´Â ÀÛ¿ëÀ» ÇϹǷΠ´Ù¾çÇÑ ÇüÅÂÀÇ ±Ù½Å°æ°è Àå¾ÖÀÇ Ä¡·á¿¡ »ç¿ëµÇ°í ÀÖ´Ù. ÃÖ±Ù¿¡ º¸Åø¸®´® µ¶¼Ò°¡ ±Ù¸·µ¿ÅëÀ» ºñ·ÔÇÑ ¸¸¼º±¸°­¾È¸é ÅëÁõÀÇ Ä¡·á¿¡ È¿°ú°¡ ÀÖ´Ù´Â º¸°í°¡ ÀÖÀ¸³ª ±× Á¤È®ÇÑ ±âÀüÀº ¹àÇôÁ® ÀÖÁö ¾Ê´Ù.
º» ¿¬±¸´Â º¸Åø¸®´® µ¶¼Ò A¸¦ ÀÎüÀÇ ½Â¸ð±Ù¿¡ ÇÇÇÏ ÁÖ»ç ½Ã¿¡ ³ªÅ¸³ª´Â ¿©·¯ Á¾·ùÀÇ °¨°¢ ¹× Åë°¢ ¿ªÄ¡ÀÇ º¯È­¸¦ ¾Ë¾Æº¸±â À§ÇÏ¿© ½ÃÇàÇÏ¿´´Ù °Ç°­ÇÑ ¼ºÀÎ ³²³à 10¸íÀÇ ¾çÂÊ ½Â¸ð±Ù¿¡ ÇÑÂÊ¿¡´Â 100 unit Dysport 1 ml¸¦ ´Ù¸¥ ÇÑÂÊ¿¡´Â ´ëÁ¶±ºÀ¸·Î¼­ »ý¸®½Ä¿°¼ö ¿ë¾× 1ml¸¦ ÀÌÁ߸Ͱ˹ýÀ¸·Î ÁÖÀÔÇÏ¿´´Ù. ½Â¸ð±ÙÀÇ ºÎ½Å°æÀÇ °¨°¢¿ªÄ¡¸¦ ÃøÁ¤Çϱâ À§ÇÏ¿© Àü·ùÀÎÁö¿ªÄ¡ (current perception threshold, CPT)¸¦ ÃøÁ¤ÇÏ¿´À¸¸ç, van Frey monofilament¸¦ ÀÌ¿ëÇÑ ÇǺÎÇ¥¸éÀÇ ±â°èÀû ÀÚ±ØÀÎÁö¿ªÄ¡, ³ÃÀÚ±ØÀÇ ÁÖ°üÀû ÀÎÁöµµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. Åë°¢¿ªÄ¡ ÃøÁ¤À¸·Î´Â ºÎ½Å°æ Åë°¢¿ªÄ¡ ÃøÁ¤À» À§ÇÑ Àü·ùÅë°¢¿ªÄ¡(nociceptive current perception threshold, N-CPT), ÇǺÎÇ¥º¯ÀÇ ±â°èÀû Åë°¢¿ªÄ¡, ¾Ð·ÂÅë°¢¿ªÄ¡ (pressure pain threshold, PPT), ¿ÂÀÚ±Ø Åë°¢¿ªÄ¡¸¦ ÃøÁ¤ÇÏ¿´´Ù. ½ÇÇ豺°ú ´ëÁ¶±ºÀÇ ½Ã°£ÀÌ µû¸¥ º¯È­¿Í Â÷À̸¦ ¾Ë¾Æº¸±â À§ÇÏ¿©, ÁÖÀÔ Àü, ÁÖÀÔ ÈÄ 1ÁÖ, 2ÁÖ, 3ÁÖ, 4ÁÖ¿¡¼­ÀÇ ½Â¸ð±ÙÀÇ °¨°¢ ¹× Åë°¢ ¿ªÄ¡ º¯È­¸¦ ÃøÁ¤ÇÏ°í ºÐ¼®ÇÏ¿© ´ÙÀ½°ú °°Àº °á°ú¸¦ ¾ò¾ú´Ù.
1. º¸Åø¸®´® µ¶¼Ò AÀÇ ÇÇÇÏÁÖ»ç ½Ã, ´ëÁ¶±º¿¡ ºñÇÏ¿© ƯÀÌÇÑ ºÎÀÛ¿ëÀº °üÂûµÇÁö ¾Ê¾Ò´Ù.
2. º¸Åø¸®´® µ¶¼Ò A ÁÖÀÔÁøÈÄÀÇ ºÎ½Å°æÀÇ Àü·ùÀÎÁö¿ªÄ¡, ÇǺÎÇ¥¸éÀÇ ±â°èÀû ÀÚ±ØÀÎÁö¿ªÄ¡, ³ÃÀÚ±ØÀÇ ÁÖ°üÀû ÀÎÁöµµ´Â ½ÇÇ豺°ú ³»Á¶±º »çÀÌ¿¡¼­ À¯ÀÇÇÑ Â÷ÀÌ°¡ °üÂûµÇÁö ¾Ê¾Ò´Ù.
3. º¸Åø¸®´® ¸ñ¼Ò A ÁÖ¾÷ºÎÀ§¿¡¼­ ±â°èÀû Åë°¢¿ªÄ¡¿Í ¿ÂÀÚ±Ø Åë°¢¿ªÄ¡´Â ½Ã°£ÀÌ Áö³²¿¡ µû¶ó ½ÇÇ豺°ú ´ëÁ¶±º ¸ðµÎ¿¡¼­ Áõ°¡ÇÏ¿´´Ù. (p=0.01)
4. º¸Å縮´® µ¶¼Ò A ÁÖ¾÷ºÎÀ§¿¡¼­ ±â°èÀû Åë°¢¿ªÄ¡´Â ½Ã°£ÀÌ Áö³²¿¡ µû¶ó ´ëÁ¶±ºº¸´Ù À¯ÀÇÇÏ°Ô Áõ°¡ÇÏ¿´´Ù. (p=0.05)
5. º¸Åø¸®´® µ¶¼Ò A ÁÖÀÓÀüÈÄÀÇ ºÎ½Å°æ Àü·ùÅë°¢¿ªÄ¡, ¾Ð·ÂÅë°¢¿ªÄ¡, ¿ÂÀÚ±Ø Åë°¢¿ªÄ¡¿¡¼­´Â ½ÇÇ豺°ú ´ëÁ¶±º »çÀÌ¿¡ À¯ÀÇÇÑ Â÷ÀÌ°¡ °üÂûµÇÁö ¾Ê¾Ò´Ù.

Botulinum toxin A is a potent inhibitor of acetylcholine release in the neuromuscular Junction and has been reported to be effective on various types of orofacial pain ilowever, the presence and mechanism of antinociceptive effect arc not clarified yet this study was performed to evaluate the effect of botulinum toxin A on the sensory and nociceptive thresholds of human trapezius muscle by using different types of quantitative sensory testing Botulinum toxin A and saline were Injected respectively on each side of trapezius muscles of ten adult healthy volunteers and the changes of sensory and nociceptive thresholds of trapezius muscle were evaluated by Quantitative sensory testing including current perception threshold (CPT), tactile threshold, cold sensation, nociceptive current perception threshold (N-CPT), pressure pam threshold (PPT), mechanical pam threshold, and heat pain threshold Each Quantitative sensory testing was measured prior to the injection, 1-week, 2-week, 3-week, and 4-week after injection
The obtained results were as follows;
1. No significant differences between botulinum toxin and saline injection group were found In local side effects.
2. No Significant differences between botulinum toxin and saline injection group were found m changes of sensory thresholds including CPT, tactile threshold, and cold sensation during 4 weeks.
3. Mechanical pain three hold and heat pain thresholds were increased m both botulinum toxin and saline Injection group during the period of evaluation. (p=0.001)
4. Significantly gradual and higher Increase in mechanical pam threshold was found In botulinum toxin Injection group than saline injection group. (p=0.05)
5. No significant differences between botulinum toxin and saline injection group were found In changes of N-CPT, heat pam, and PPT during 4 weeks.
These results provide some evidences that botulinum toxin A could affect localized non-inflammatory peripheral nociception by inhibition of release or deactivation of nociceptive neuropeptides at the nerve terminals.

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