PowerPoint Presentation · Electrocardiographic and Electrophysiological Predictors of...

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MMD6500 Dr Blandine Mondésert Electrophysiology service, Medicine department Adult Congenital Heart Disease Center Montreal Heart Institute, Université de Montréal 26 octobre 2016 Cours résidents anesthésie

Transcript of PowerPoint Presentation · Electrocardiographic and Electrophysiological Predictors of...

Page 1: PowerPoint Presentation · Electrocardiographic and Electrophysiological Predictors of Atrioventricular Block Following Transcatheter Aortic Valve Replacement ...

MMD6500

Dr Blandine MondésertElectrophysiology service, Medicine department

Adult Congenital Heart Disease Center Montreal Heart Institute, Université de Montréal

26 octobre 2016

Cours résidents anesthésie

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• 4.3.1.3 ElectrophysiologyDescribe the normal anatomy of the cardiac conduction systemDescribe the phases of cellular action potentials, including the major associated ion currentsDescribe the automaticity of the cardiac conduction system, understanding the differences between the SA node, AV node, Bundle of His and Purkinje fibresDescribe excitation-contraction coupling, and how electrical activation of the myocyte leads to contraction and relaxation

• 4.3.2 Clinical assessmentHolter monitors

• 4.3.3 PathophysiologyAnti-dysrryhthmicsAberrant conduction including: Wolf Parkinson White (WPW)), dysrhythmia, ablationprocedures (procedures in the Electrophysiology (EP) labSudden acute and sub-acute ventricular and supra-ventricular arrhythmia

Plan

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Anatomie

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11h54

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13h

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Après 24h d’arrêt

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Le potentiel d’action

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Classification de Vaughan et Williams

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Classification de Vaughan et Williams

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Cas clinique

• Patient 76 ans MCAS: sténose 70% CD Sao serrée, AVA 0.8cm2

• En attente de chirugie cardiaque

• Transfert en urgence d’un hopital périphériquepour mort subite

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Cas clinique

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Cas clinique

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Cas clinique

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Cas clinique

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Cas clinique

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Europace (2013) 15, 1389–1406

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Traitement?

• Aigu: CVE Troubles hydroélectrolytiques (Mg++, K+) Tx allongeant QT? www.qtdrugs.org Isuprel ou pacing atrial Tx facteur déclenchant

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• Long cours: Tx facteur déclenchant BB ICD selon clinique et recommandations Dépistage génétique si non aquis Dépistage familial

Traitement?

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36 y.o. woman with palpitations

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• CVE+++

• Pas d’amio, pas d’AA

• Adénosine

Traitement?

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36 y.o. woman with palpitationsPost Adenosine 12…

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36 y.o. woman with palpitationsPost Adenosine 12…

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Sinus rhythm Tachycardia

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Manifest Accessory Pathways(Pre-excitation)

• Accessory Pathways that are able to conduct anterogradely

• Result in WPW Short PR interval

(<120ms) Delta Wave

(ventricular pre-excitation)

Prolonged QRS duration

SVT’s

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Accessory AV Connections

Left Free Wall = 45-60%Postero-septal = 25%

Right Free Wall = 13-21%Antero-septal = 2%

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Concealed Accessory Pathways(Non pre-excited)

• Capable of only retrograde VA conduction No ventricular

pre-excitation PR interval Normal QRS duration

Normal Typical display

non-decrementalconduction

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Characterize the delta wave…

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Right or Left?

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An algorithm for the electrocardiographic localization of accessory pathways in the Wolff-

Parkinson-White syndrome.

Milstein, Sharma, Guiraudon, and KleinPACE, Vol. 10, May, 1987

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V1

Right Ventricle Left Ventricle

Negative delta wave and QRS

Positive delta wave and QRS

Negative delta and

QRSII, III, avF

Isoelectric or negative

deltaI, avL, V5,

V6

Posteroseptal Lateral

Negative delta and

QRSII, III, avF

Posteroseptal

Right free wall

Anteroseptal

Inferior axis

Left axis

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PGG

EPS

HRA

HIS

RAO LAO

CS

RVA

HRA

HIS

CSRVA

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Post Ablation

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Cas clinique

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Facteurs prédictifs BAV post TAVI

- 75 patients TAVI, EPS pré et post TAVI, median follow-up de 1.4 ans (IQ 0.6-2.1)

- 11 (14.7%) BAV per hospitalisation et 3 (4%) après congé 83.3% BBD pré-procédure 26.7% nouveau BBG14.3% BBG pré-existant

- Analyse ROC- delta-HV ≥13 ms prédictif de BAV (100% de sensibilité, 84.4% de

spécificité)- HV-interval ≥65 ms (83.3% sensibilité et 81.6% spécificité)

Electrocardiographic and Electrophysiological Predictors of Atrioventricular Block Following Transcatheter Aortic Valve Replacement☆

Lena Rivard, MD, MSc, Gernot Schram, MD, PhD, Anita Asgar, MD, Paul Khairy, MD, PhD, Jason G. Andrade, MD, Raoul Bonan, MD, Marc Dubuc, MD, Peter G. Guerra, MD, Reda Ibrahim, MD, Laurent Macle, MD, Denis Roy, MD, Mario Talajic, MD, Katia Dyrda, MD, Azadeh Shohoudi, PhD, Jean-Benoit le polain de Waroux, MD, PhD, Bernard Thibault,

MDDepartment of Cardiology at the Montreal Heart Institute and the Université de Montréal, Montreal, Canada

Published Online: October 31, 2014

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Tous les patients avec QRS ≥ 120ms, EPS pré-TAVI :-Les patients avec BBG (10% des TAVI): mesure de HV pré-TAVI et PMT-Les patients avec BBD PMT (90% de risque de BAV).

Tous les autres patients (QRS<120 ms), pas d’EPS

En post-TAVI:

- Implantation PMP quand trouble conductif de haut-degré persistent

- Chez les patients avec nouveau BBG: projet de recherche si Corevalveou EPS +/- PM si HV>70ms pour les autres

- EPS chez tous les patients avec BBG ancien (pre-TAVI) avec mesure du HV et implantation PMP si delta HV ≥ 13 ms

- Pas d’EPS et retrait du PMT sur l’étage si QRS reste fin

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Protocole ICM

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Patient avec BBG post Corevalve

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Projet de recherche

Protocole Monitoring: Implantation Reveal linq

Protocole EPS: EPS pour mesure HVSi >70 ms implantation PMSi < suivi

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Monitoring

• ECG• Télémétrie• Holter 24 ou 48h• Iphone• King of heart• Cardiomémo• Moniteur implantable

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• Jeune homme 17 ans• Trauma post chute en vélo• Pas de syncope• Trauma du fémur• Bradycardie per opératoire• -> holter

Cas clinique

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Holter ECG

Courtoisie du Dr Andrade

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Courtoisie du Dr Andrade

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Courtoisie du Dr Andrade

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Courtoisie du Dr Andrade

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Courtoisie du Dr Andrade

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Courtoisie du Dr Andrade

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Merci!