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Review Question - QID 767

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QID 767 (Type "767" in App Search)
A child in a MVA has a Glasgow Coma Scale score of 14. His injuries have been graded as severe but not life-threatening injury to the chest (3 points), moderate injury to the abdomen (2 points), and severe injuries but with probable survival injury to the the face or neck (4 points) using the criteria for the Modified Injury Severity Score (MISS). There are no injuries to extremities/pelvis . Based on this information, what is the child’s total MISS score?

7

2%

37/1685

9

16%

278/1685

25

19%

324/1685

29

60%

1012/1685

30

1%

20/1685

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The MISS for children categorizes injuries into five body areas: 1) neurologic, 2) face & neck, 3) chest, 4) abdomen & pelvic contents, 5) extremities & pelvic girdle. Each of these are scored 1-5 with 1 being minor, 2 moderate, 3 severe but not life threatening, 4 severe with probable survival, and 5 critical with uncertain survival. The total score for the MISS, like the Injury Severity Score (ISS), is the sum of the squares for the highest injury score grades in the three most severely injured body regions. Therefore, in this case: chest (3x3) + abdomen (2x2) + face/neck (4x4) = 9+4+16 = 29. The Glasgow coma scale would be 1, which is less than the scores of 3 of the other areas so it is excluded.

Loder in 1987 showed that in 78 polytrauma pediatric patients, no deaths were seen when the MISS is <40. Mortality was 50% for scores >40 and 75% for scores >50. The Mayer article is a good overview of the MISS.

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