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ECG of the Month |
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¢¹ ECG of month ( 2005. 3 )
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Case
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¿©ÀÚ 75¼¼ ÈäÅëÀ¸·Î ÀÀ±Þ½Ç ³»¿ø
½É±ÙÈ¿¼Ò »ó½Â, ±âÀúÁúȯ: ´ç´¢º´, °íÇ÷¾Ð
#1 ÀÀ±Þ½Ç ³»¿ø½Ã ½ÉÀüµµ
#2 ³»¿ø 2½Ã°£ ÈÄ ½ÉÀüµµ
# PCI ½ÃÇà ´ÙÀ½³¯ ½ÃÇàÇÑ ½ÉÀüµµ
Q1. ¾î´À °ü»óµ¿¸Æ Æó»öÀ¸·Î ÀÎÇÑ ½É±Ù¼Õ»óÀÌ °¡Àå Àǽɵ˴ϱî?
°¡. LAD
³ª. LCX
´Ù. RCA
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A1. ³ª
ÇØ¼³: ½ÉÀüµµ #1¿¡¼´Â V5-6, I, aVL¿¡¼ ST »ó½ÂÀÌ º¸À̸ç, ÀÌ´Â lateral wallÀÇ
transmural ischemia ¼Ò°ßÀÔ´Ï´Ù. V1-2¿¡¼´Â R wave°¡ Å©°Ô ³ªÅ¸³ª¸é¼ ST ÇϰÀÇ ¼Ò°ß
ÀÌ º¸¿©¼ posterior wall¿¡µµ ÇãÇ÷¼º º¯È°¡ ÃßÁ¤µË´Ï´Ù. ½É±ÙÈ¿¼ÒÀÇ »ó½Â, ÈäÅë, ÀÌ»óÀÇ ½É
ÀüµµÀÇ ¼Ò°ßÀº postrolateral AMI¿¡ ÇÕ´çÇÕ´Ï´Ù.
ÀÀ±Þ °ü»óµ¿¸Æ Á¶¿µ¼ú¿¡¼ LCX subtotal occlusion ¼Ò°ßÀÌ º¸¿©¼ PCI¸¦ ½ÃÇàÇÏ¿´À¸¸ç, ½É
ÃÊÀ½ÆÄ¿¡¼µµ posterolateral wall akinesia ¼Ò°ßÀ» º¸¿´½À´Ï´Ù.
½ÉÀüµµ #3Àº PCI ´ÙÀ½³¯ ½ÉÀüµµÀε¥, STÀý º¯È´Â ÁÙ¾îµç ¹Ý¸é, I, aVL¿¡ Q wave, V6¿¡ ÀÛ
Àº q wave°¡ º¸À̸ç, V1-2¿¡´Â R wave°¡ Å©°Ô º¸¿©¼ posterolateral wall MI¸¦ µÞ¹Þħ
ÇÕ´Ï´Ù.
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Q2. #2 ½ÉÀüµµ ¼Ò°ßÀ¸·Î ÀûÀýÇÑ °ÍÀº?
°¡. pre-excitation
³ª. lateral wall MI
´Ù. ventricular tachycardia
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A2. °¡)³ª)´Ù) ¸ðµÎ °¡´É¼º ÀÖ´Â Á¤´äÀÔ´Ï´Ù. ±×·¯³ª ´Ù)ÀÇ °¡´É¼ºÀÌ °¡Àå ³ô½À´Ï´Ù.
½ÉÀüµµ #2´Â PCI ÈÄ CCU¿¡¼ ±â·ÏµÈ ½ÉÀüµµÀÔ´Ï´Ù. Short PR°ú delta wave°¡ °üÂûµÇ¸ç
rhythm strip¿¡¼´Â fusion beat°¡ ³ªÅ¸³³´Ï´Ù. ÀÌ °æ¿ì µÎ°¡Áö °¨º°Áø´ÜÀÌ ÇÊ¿äÇÕ´Ï´Ù.
ù°, concealed bypass tract°¡ AV nodal ischemia¿¡ ÀÇÇØ manifested preexcitationÀ¸·Î
³ªÅ¸³ª´Â °æ¿ìÀÔ´Ï´Ù.
µÑ°, slow VT°¡ ¿ì¿¬È÷ ¶Ç´Â isorhythmic AV dissociationÀÇ ÇüÅ·ΠP wave¿Í ºñ½ÁÇÑ ¼Ó
µµ·Î ³ªÅ¸³ª´Â °æ¿ìÀÔ´Ï´Ù.
µÎ °æ¿ì ¸ðµÎ fusion beat°¡ ³ªÅ¸³¯ ¼ö ÀÖÀ¸¸ç ½ÉÀüµµ #2¸¸À¸·Î´Â ÆÇÁ¤ÀÌ ¾î·Æ½À´Ï´Ù. ±×·¯
³ª ´ÙÀ½°ú °°Àº ¼Ò°ßÀÌ slow VT °¡´É¼ºÀ» ½Ã»çÇÕ´Ï´Ù.
1. Negative delta wave°¡ II, III, aVF, ¿Í I, V4-6¿¡ µ¿½Ã¿¡ ³ªÅ¸³ª´Â °ÍÀº multiple
bypass tract¸¦ Á¦¿ÜÇϰí´Â ±ØÈ÷ ¿¹¿ÜÀûÀÎ ¼Ò°ßÀÔ´Ï´Ù.
2. Rhythm strip 11¹øÂ° QRS´Â pre-excitationÀÌ ¾ø¾îÁ³À½¿¡µµ ºÒ±¸Çϰí Q wave°¡ º¸ÀÌÁö
¸¸ ½Ã°£ÀÌ Áö³ ÈÄ ÂïÀº ½ÉÀüµµ #3¿¡¼´Â º¸ÀÌÁö ¾Ê½À´Ï´Ù. ÀÌ´Â pre-excitationÀÌ ¾Æ´Ñ ´Ù
¸¥ ¸®µëÀÌ fusionµÇ¾úÀ½À» ½Ã»çÇÕ´Ï´Ù.
3. ±Þ¼º ½É±Ù°æ»öÁõ¿¡¼ reperfusion Á÷ÈÄ¿¡ ³ªÅ¸³ ¸®µëÀ̶õ ÀÓ»ó¼Ò°ßÀ» °¨¾ÈÇÒ ¶§
reperfusion arrhythmiaÀÎ slow VT¸¦ ÃßÁ¤ÇÒ ¼ö ÀÖ½À´Ï´Ù. ¹°·Ð À̶§ QRS¿Í P waveÀÇ
matchingÀº ¿ì¿¬À¸·Î ¼³¸íÇØ¾ß ÇÕ´Ï´Ù.
4. Slow VT¶ó°í °¡Á¤ÇÒ ¶§, V1-2ÀÇ R wave´Â LV basal wall focus¸¦, II, III, aVFÀÇ Q
wave´Â posterior wall focus¸¦, ±×¸®°í I¿¡¼ Q wave´Â lateral wall focus¸¦ ÁöĪÇÕ´Ï´Ù.
Á¾ÇÕÀûÀ¸·Î VTÀÇ focus´Â LV basal posterolateral wall·Î ÃßÁ¤µË´Ï´Ù. ÀÌ´Â ½É±Ù°æ»öÀÇ À§
Ä¡¿Í ÀÏÄ¡Çϸç, ¾Æ¸¶µµ reperfusion Á÷ÈÄ peri-infarct border zone¿¡¼ ¹ß»ýÇÏ´Â VT·Î ÆÇ
´ÜµË´Ï´Ù. Âü°íÀûÀ¸·Î »ó´ëÀûÀ¸·Î QS °£°ÝÀÌ ³ÐÀº VT ¸®µëÀº epicardial originÀ» ½Ã»çÇÕ´Ï
´Ù.
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À§ÀÇ ½ÉÀüµµ¸¦ º¸½Å ¼±»ý´ÔµéÀÇ ÀǰßÀ» ¾Æ·¡ÀÇ ÀÇ°ß ¾²±â¿¡ ÀǰßÀ» ³²°Ü ÁֽʽÿÀ. ¼±»ý´ÔµéÀÇ ´Ù¾çÇÑ ÀǰßÀ» ¹Þ½À´Ï´Ù.
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