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* CRTD is recommended in patients with sinus rhythm, LBBB, QRS > 130ms, EF<30%, NYHA II. IA <cite>ESCHF</cite> | * CRTD is recommended in patients with sinus rhythm, LBBB, QRS > 130ms, EF<30%, NYHA II. IA <cite>ESCHF</cite> | ||
* CRTD is recommended in patients with sinus rhythm, LBBB, QRS > 120ms, EF<35%, NYHA III-IV. IA <cite>ESCHF</cite> | * CRTD is recommended in patients with sinus rhythm, LBBB, QRS > 120ms, EF<35%, NYHA III-IV. IA <cite>ESCHF</cite> | ||
* Documented VT and structural heart disease. IB <cite>ESCsyncope</cite> | |||
* When monomorphic VT is induced at EP study in patients with previous myocardial infarction. IB <cite>ESCsyncope</cite> | |||
==Class IIa (should be considered)== | ==Class IIa (should be considered)== | ||
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* A CRTD should be considered in a patient with non-LBBB, QRS > 150ms, EF<30%, NYHA II . IIaA<cite>ESCHF</cite> | * A CRTD should be considered in a patient with non-LBBB, QRS > 150ms, EF<30%, NYHA II . IIaA<cite>ESCHF</cite> | ||
* A CRTD/CRTP may be considered to reduce the risk of HF worsening in a patient with atrial fibrillation who is pacemaker dependant, after AV nodal ablation QRS > 120ms, EF<35%, NYHA III-IV . IIaA<cite>ESCHF</cite> | * A CRTD/CRTP may be considered to reduce the risk of HF worsening in a patient with atrial fibrillation who is pacemaker dependant, after AV nodal ablation QRS > 120ms, EF<35%, NYHA III-IV . IIaA<cite>ESCHF</cite> | ||
* In patients with documented VT with inherited cardiomyopathies or channelopathies. IIaB. <cite>ESCsyncope</cite> | |||
==Class IIb (may be considered)== | ==Class IIb (may be considered)== | ||
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#ESCSCD pmid=16935866 | #ESCSCD pmid=16935866 | ||
#ESCHF pmid=22828712 | #ESCHF pmid=22828712 | ||
#ESCsyncope pmid=19713422 | |||
</biblio> | </biblio> |