Electrocardiografía Basica
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Transcript of Electrocardiografía Basica
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Valentín Gómez AlanizEspecialista en Medicina de Emergencia
COLEGIO MEXICANO DE MEDICINA DE EMERGENCIA A.C.
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Sistema de conducción del corazón
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Sistema de conducción del corazón
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AVR AVL
AVF
I
II III
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I
II III+ I
IIIII
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+ I
IIIIIAVF
AVR AVL
0180
30
90
-90
-30
60120150
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I
IIIII AVF
AVR AVL
0180
30
90
-90
-30
60120
150
-60-120
-150
Calcule el eje
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I
IIIII AVF
AVR AVL
0180
30
90
-90
-30
60120
150
-60-120
-150
Calcule el eje
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I
IIIII AVF
AVR AVL
0180
30
90
-90
-30
60120
150
-60-120
-150
Calcule el eje
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I
IIIII AVF
AVR AVL
0180
30
90
-90
-30
60120
150
-60-120
-150
Calcule el eje
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I
IIIII
AVR AVL
0180
30
90
-90
-30
60120
150
-60-120
-150
Calcule el eje
AVF
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I
IIIII AVF
AVR AVL
0180
30
90
-90
-30
60120
150
-60-120
-150
Calcule el eje
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I
III AVF
AVR AVL
0180
30
90
-90
-30
60120
150
-60-120
-150
Calcule el eje
II
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Calcule el eje
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Calcule el eje
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Calcule el eje
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Calcule el eje
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Papel electrocardiográfico
Voltaje
Tiempo
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Bases electrocardiográficas
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AVR AVL
AVF
I
II III
D1: Brazo derecho (negativo)
y brazo izquierdo (positivo).
D2: Brazo derecho (negativo)
y pierna izquierda (positivo).
D3: Brazo izquierdo (negativo)
y pierna izquierda (positivo)
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AVR AVL
AVF
I
II IIIaVR: (Right)Potencial del brazo
derecho aVL: (Left)Potencial del brazo
izquierdo aVF: (Foot)Potencial de la pierna
izquierda
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V1: 4º espacio intercostal, borde esternal derecho. V2: 4º espacio intercostal, borde esternal izquierdo. V3: Punto intermedio entre V2 y V4. V4: 5º espacio intercostal izquierdo, línea
medioclavicular. V5: 5º espacio intercostal izquierdo, línea axilar
anterior. V6: 5º espacio intercostal izquierdo, línea axilar
media.
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Tabique interventricular Región anterior del tabique La mayor parte de ambos
ventrículos.
Posterobasales izquierdas, cono de la arteria pulmonary la parte más alta del tabiqueinterventricular
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V3 y V4Tabiqueinterventricular
V5 y V6 Cara izquierda del
tabique interventricularV1 y V2Cara derecha del tabique
interventricular
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Femenino de 30 años con estenosis pulmonar infundibular grave.
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