curso de electrocardiografia
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Transcript of curso de electrocardiografia
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FUNCIONAMIENTO DEL ELECTROCARDIÓGRAFO
Muestra La Dirección Y Magnitud De Las Corrientes Electricas Del Corazon.
Obtiene La Resultante De Las Corrientes Que Fluyen En Multiples Direcciones Mediante Electrodos Colocados En Todo El Cuerpo
Un Galvanometro Mide La Corriente Que Pasa Entre Los Dos Electrodos
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FUNCIONAMIENTO DEL ELECTROCARDIÓGRAFO
• Velocidad Del Papel.
• Tamaño De La Cuadricula Del Papel E Interpretación Del Papel De Ekg.
• Interferencia
• Calidad Del Electrocardiograma.
• Colocación De Los Electrodos
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EL PAPEL DEL EKG
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ESTANDAR
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COMPONENTES DEL ELECTROCARDIOGRAMA NORMAL
• Onda P
• Onda R
• Onda S
• Onda Qs
• Onda R´
• Onda S´
• Onda T
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COMPONENTES DEL TRAZADO
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REGLA PARA EKG
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COMPONENTES DEL TRAZADO
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• Intervalo Pr
• Intervalo Qrs
• Intervalo Qt
• Segmento St
COMPONENTES DEL ELECTROCARDIOGRAMA NORMAL
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P Y PR
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INTERVALOS
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SEGMENTOS
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DETERMINACION DE LA FRECUENCIA CARDIACA
• EXISTEN DIFERENTES METODOS
• 1 300/Numero De Cuadros De 0.5 Cm Entre Rr
• 2. 1500/ Numero De Cuadros De 1 Milimetro
• 3. Contar El Numero De Qrs En 3 Seg YMultiplicarlo Por 20
• 4. Conteo De 300-150-100-75-60-50
• 5. Conteo De 4 O 5 0 6 0 10 Segundos
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PLANO FRONTAL
Triangulo De Einthoven
Derivaciones Bipolares(Localización De Los Electrodos)DID IID III
Derivaciones UnipolaresAvrAvlAvf
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UBICACIÓN DE LAS DERIVACIONES
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PLANO HORIZONTAL
VI
V2
V3
V4
V5
V6
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ARTEFACTOS
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ARTEFACTOS
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SECUENCIA DE LA DESPOLARIZACION VENTRICULAR
Septum
Ventrículo Izquierdo Y Derecho
Pared Lateral Alta
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FORMACION DEL EKG
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DIRECCIÓN DE LA DESPOLARIZACION VENTRICULAR
Derecha A Izquierda
Hacia Abajo
Hacia Adelante
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VECTORES CARDIACOS
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MORFOLOGÍA NORMAL DEL QRS EN LAS DERIVACIONES:
Di +Dii +Diii + O –Avr -Avl +Avf + O -
Vi -V2 -V3 IsoelectricoV4 +V5 +V6 +
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QRS
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QRS
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QRS
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QRS
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QRS
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DETERMINACIÓN DEL EJE CARDIACO
Eje Auricular
Eje Ventricular
Di 0°
Dii +60°
Diii +120°
Avr -150°
Avl -30°
Avf +90°
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Eje del QRS
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PLANO FRONTAL
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REPOLARIZACION VENTRICULAR
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ST-T
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REPOLARIZACION VENTRICULAR
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REPOLARIZACION VENTRICULAR
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INTERPRETACIÓN DEL ELECTROCARDIOGRAMA NORMAL
Ritmo
Frecuencia cardiaca
Intervalo pr ( valor máximo)
Intervalo qrs (valor máximo)
Determinación del eje cardiaco
Configuración del segmento st
configuración de la onda T
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TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
Derivaciones Unipolares
Derivaciones Bipolares
Derivaciones Precordiales
Plano Frontal
Plano Horizontal
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TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
Ritmo Cardiaco
Arritmia Cardiaca
P Picuda
P Mellada
P Isobifasica
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Pr Prolongado
Pr Corto
Síndromes De Preexitacion
Wolf-Parkinson –White
Onda Delta
TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
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TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
Qrs AnchoQrs EstrechoEje CardiacoQsRsRsr´QrPunto J
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TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
Infradesnivel Del St
Supradesnivel Del St
St Rectificado
Repolarizacion Precoz
Onda U
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TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
T Picuda
T Isoelectrica
T Negativa
Pr Prolongado
R Inicial
Progresión De La R
Zona De Transicion De La R
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TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
Eje Cardiaco A Izquierda
Eje Cardiaco A Derecha
Rotación Cardiaca En Sentido Horario
Rotación Cardiaca En Sentido Antihorario
Hipertrofia Ventricular Izquierda
Hipertrofia Ventricular Derecha
Positividad Neta-Negatividad Neta
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TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
Sobrecarga Ventricular
Bloqueo De Rama Derecha
Bloqueo De Rama Izquierda
Hemibloqueo Anterior Izquierdo
Isquemia
Injuria O Lesion
Infarto
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TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
Transtornos De La Conducción Av
Bloqueo Av Completo
Bloqueo Av De Segundo Grado
Bloqueo Av De Primer Grado
Fluter Auricular
Taquicardia Paroxística Supraventricular
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TERMINOLOGÍA APLICADA A LA ELECTROCARDIOGRAFIA
Extrasistoles Auriculares
Extrasistoles Ventriculares
Ritmo Bigeminado
Ritmo Trigeminado
Intoxicación Digitalica
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ELECTROCARDIOGRAMA
PATOLOGICO
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P
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SOBRECARGA AURICULAR IZQUIERDA
P Mitral ( P Ancha Y Mellada) En D2
P Bifásica Con Componente Negativo Mayor De 40 Mseg
Etiología:
Hipertensión
Estenosis Mitral
Insuficiencia Mitral
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CRECIMIENTO AURICULAR IZQUIERDO
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SOBRECARGA AURICULAR DERECHA.
Eje De La P De + 60° A + 90°
P Mayor De 2,5 Mm (P Pulmonar) En Dii
P Alta Y Ancha En V1.
Etiologías:
Epoc
Valvulopatias Tricuspideas
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CRECIMIENTO DE AD
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TRANSTORNOS DE LA CONDUCCIÓN INTRAVENTRICULAR
Bloqueo Completo De Rama Derecha
Bloqueo Incompleto De Rama Derecha.
Bloqueo Completo De Rama Izquierda
Bloqueo Incompleto De Rama Izquierda
Hemibloqueo Anterior Izquierdo
Hemibloqueo Posterior Izquierdo
Bloqueo Completo De Rama Derecha Mas Hemibloqueo Anterior Izquierdo
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BCRD
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BCRD
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BCRD
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BCRI
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TRANSTORNOS DE LA CONDUCCIÓN AURICULO
VENTRICULAR
Bloqueo Nodal Sinoauricular
Síndrome Del Seno Enfermo.
Bloqueo Auriculo-Ventricular De Primer Grado
Bloqueo Av De Segundo GradoTipo Mibitz I (Tipo Wenckebach)Tipo Mobitz Ii
Bloqueo A-V De Tercer Grado (Bavc)
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B A-V Gº1
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BLOQUEO AV DE 2º GRADO. MOBITZ I
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BLOQUEO AV DE 2º GRADO. MOBITZ IIUN LATIDO AURICULAR SE CONDUCE Y OTRO NO (2:1)
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BLOQUEO AV DE 3º GRADO O COMPLETO
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CPAS (EXTRASISTOLIA AURICULAR)NO SE TRATAN, NO EXISTE PAUSA COMPENSADORA.
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T.S.
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ARRITMIA RESPIRATORIA.LA FRECUENCIA CARDIACA
AUMENTA ALGO EN LA INSPIRACION
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Ritmo del seno coronario.Ps negativas en II,III, aVF y positiva en aVR.
PR normal
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Taquicardia auricular multifocal o ritmo auricular caoticoEpoc
Digital
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TSV paroxistica 150-230 lpm. comienzo y fin bruscoIdiopatica
WPW
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TAP CON BLOQUEO AVDIGITAL
EPOC
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T NODAL NO PAROXISTICA 70-130 LPMIAM
DIGITAL.EPOC
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E.V.
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E.V.
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CRITERIOS DE LOWN Y WOLF DE PELIGROSIDAD (1971)
Grado 0...........ausencia de CPVGrado 1...........Monotopicas < 30 /horaGrado 2...........Monotopicas >30 /horaGrado 3...........PolitopicasGrado 4a.........PareadasGrado 4b.........En rachas y taquicardia ventricularGrado 5...........R sobre T
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F.V.
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ASISTOLIA
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CD
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HIPERTROFIA VENTRICULAR DERECHA
Desvia El Eje Cardiaco A Derecha >100°
Plano Frontal
Di(S-R) + Diii(R-S) >14 Mm
Plano Horizontal
Tipo A : R En V1 Con S En V6
Tipo B : R =S En V1
Tipo C : Rs De Vi A V6
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HIPERTROFIA VENTRICULAR DERECHA
Etiologías
Cardipatias Congenitas
Epoc
Tromboembolismo Pulmonar
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HVD
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HVD
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HVD
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HVD
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SOBRECARGA E HIPERTROFIA DE V.D
Ekg En La Enfermedad Pulmonar Obstructiva Crónica
Ekg El Tromboembolismo Pulmonar
Patron De Mac Ginn WhiteS1-Q3-T3
Signos De Sobrecarga Derecha
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HIPERTROFIA VENTRICULAR IZQUIERDA(PESO >400 GR)
Produce Aumento Del Voltaje Del Qrs
Desvia El Eje Cardiaco A Izquierda
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HIPERTROFIA VENTRICULAR IZQUIERDA(PESO >400 GR)
Criterios:
Plano Frontal
Indice De Lewis : Di ( R-S) + Diii(S-R) >17 mm
R En Avl >12 mm
R En D1 >14 mm
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HIPERTROFIA VENTRICULAR IZQUIERDA(PESO >400 GR)
Plano Horizontal
Indice De Mcphie R O S > 45mm En Cualquier
Derivación Precordial
R En V6 > R En V5
R En V5 > 26 Mm
R En V6 > 18 Mm
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HIPERTROFIA VENTRICULAR IZQUIERDA(PESO >400 GR)
Indice De Sogolow:
Sv1 + Rv5>35mm
o
Sv2+ Rv6>35 Mm
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HIPERTROFIA VENTRICULAR IZQUIERDA(PESO >400 GR)
Signos De Sobrecarga Ventricular Izquieda En La Onda T
( T Negativa En V5 V6)
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HIPERTROFIA VENTRICULAR IZQUIERDA(PESO >400 GR)
Etiologías
Hipertensión Arterial
Estenosis Aortica
Miocardiopatia Hipertrofica
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HVI
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HVI
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HVI
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ELECTROCARDIOGRAMA EN LA ENFERMEDAD CORONARIA AGUDA
Isquemia : Inversión De La Onda T
Injuria o Lesion: Elevación Del St
Infarto o Necrosis: Aparicion De Nueva Q
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ENFERMEDAD CORONARIA
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LOCALIZACIÓN DEL EVENTO ISQUEMICO
Inferior: Dii-Diii-Avf
Anterior V2-V3-V4
Anteroseptal V1v2v3v4
Lateral Alto Di-Avl
Lateral Bajo V5-V6
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ENFERMEDAD CORONARIA
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ENFERMEDAD CORONARA
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Electrocardiograma en la enfermedad coronaria
Ekg De La Isquemia MiocárdicaT Negativa En Las Derivaciones Comprometidas
Ekg En La Injuria Subendocardicanfradesnivel Del St En La Derivación Comprometida
Ekg En El Infarto Agudo De MiocardioRecienteEvolucionadoAntiguo
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ISQUEMIA
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ISQUEMIA
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ISQUEMIA VS INFARTO
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NORMAL VS ISQUEMIA
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INFARTO
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INFARTO
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INFARTO
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INFARTO
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INFARTO POSTERIOR
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INFARTO POSTERIOR
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COMPLICACIONES DEL I.M.
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COMPLICACIONES DEL I.M.
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COMPLICACIONES DEL I.M.
SVD
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COMPLICACIONES DEL I.M.
ANEURISMA DE VI
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DIAGNOSTICO DIFERENCIAL ELECTROCARDIOGRAFICO DEL INFARTO
Hipertrofia De ViEpocHipertrofia De VdCor PulmonaleNeumotoraxEmbo0lia PulmonarMiocardiopatia HipertroficaMiocardiopatia DilatadaMiocarditis
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DIAGNOSTICO DIFERENCIAL ELECTROCARDIOGRAFICO DEL INFARTO
Amiloidosis CardiacaNeoplasia CardiacaLeucemia Con Infitracion CardiacaBloqueo De Rama IzquierdaAneurisma Ventricular IzquierdoHbaiSíndrome De W-P-WHiperpotasemiaTraumatismoDistrofia Muscular
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ELECTROCARDIOGRA Y CAMBIOS DEL K
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ELECTROCARDIOGRA Y CAMBIOS DEL K
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ELECTROCARDIOGRAMA Y LOS DIGITALICOS
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ELECTROCARDIOGRAMA Y LOS DIGITALICOS
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ELECTROCARDIOGRAMA Y LOS DIGITALICOS
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ELECTROCARDIOGRAMA Y LOS DIGITALICOS
ELECTROCARDIOGRAMA Y LOS DIGITALICOS
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ELECTROCARDIOGRAMA Y LOS DIGITALICOS
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EKG EN LOS SÍNDROMES DE PREEXITACION
Wolf-Parquinson –White
Lown-Ganong-Levine
Sindrome De Mahain