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Tabla 2: Potenciales somatosensoriales (N20 y N70) y pronóstico neurológico a medio plazo en pacientes en coma postanóxico. |
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|
Test pronóstico |
Porcentaje (IC 95%) |
|
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|
Sensibilidad* |
Especificidad* |
Valor predictivo positivo* |
Valor predictivo negativo* |
Falso positivo* |
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|
N20 |
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|
Presencia |
Favorable |
100 (83.2-100) |
53.7 (38.7-67.9) |
50 (34.8-65.2) |
100 (85.1-100) |
46.3 (32.1-61.3) |
|
Ausencia |
Desfavorable |
53.7 (38.7-67.9) |
100 (83.2-100.0) |
100 (85.1-100.0) |
50 (34.8-65.2) |
0.0 (0.0-16.8) |
|
N70 |
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|
Presencia |
Favorable |
84.2 (62.4-94.5) |
92.7 (80.6-97.5) |
84.2 (62.4-94.5) |
92.7 (80.6-97.5) |
7.3 (2.5-19.4) |
|
Ausencia |
Desfavorable |
92.7 (80.6-97.5) |
84.2 (62.4-94.5) |
92.7 (80.6-97.5) |
84.2 (62.4-4.5) |
15.8 (5.5-37.6) |
|
N20-N70 |
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|
Ambos presentes |
Favorable |
100
(83.2-100.0) |
88.0 (70-95.8) |
84.2 (62.4-94.5) |
100 (85.1-100.0) |
12.0 (4.2-30.0) |
|
Ambos ausentes |
Desfavorable |
88.0 (70-95.8) |
100 (83.2-100.0) |
100 (83.2-100.0) |
84.2 (62.4-94.5) |
0.0 (0.0-19.4) |
|
EEG |
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|
Hallazgos favorables |
Favorable |
100 (83.2-100.0) |
56.1 (41.0-70.1) |
51.4 (35.9-66.6) |
100 (85.1-100) |
43.9 (29.9-59.0) |
|
Hallazgos desfavorables |
Desfavorable |
56.1 (41.0-70.1) |
100 (83.2-100) |
100 (85.1-100) |
51.4 (35.9-66.6) |
0.0 (0.0-16.8) |
|
N20-N70-EEG |
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|
Potencial presente y EEG favorable |
Favorable |
100 (80.6-100.0) |
85.0 (64.0-94.8) |
84.2 (62.4-94.5) |
100 (81.6-100.0) |
15.0 (5.2-36.0) |
|
Potencial ausente y EEG desfavorable |
Desfavorable |
85.0 (64.0-94.8) |
100 (80.6-100.0) |
100 (81.6-100.0) |
84.2 (62.4-94.5) |
0.0 (0.0-19.4) |
|
IC 95% = intervalo de confianza al 95%. EEG = electroencefalograma. |
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