Download Slide ()

Algorithm for assessment of need for implantation of a cardioverter-defibrillator. The appropriate management is selected based on measurement of left
ventricular ejection fraction and assessment of the New York Heart Association (NYHA) functional class. Patients with depressed left ventricular function at
least 40 days after ST-segment elevation myocardial infarction (STEMI) are referred for insertion of an implantable cardioverter-defibrillator (ICD) if the left
ventricular ejection fraction (LVEF) is <30–40% and they are in NYHA class II–III or if the LVEF is <30–35% and they are in NYHA class I functional status.
Patients with preserved left ventricular function (LVEF >40%) do not receive an ICD regardless of NYHA functional class. All patients are treated with
medical therapy after STEMI. VF, ventricular fibrillation; VT, ventricular tachycardia. (Adapted from data contained in DP Zipes et al: ACC/AHA/ESC 2006
Source: ST-Segment Elevation Myocardial Infarction, Harrison's Principles of Internal Medicine, 19e
guidelines for management of patients with ventricular arrhythmias and the prevention of sudden cardiac death; a report of the American College of
Citation: Kasper
D, Fauci A, Task
Hauser
S, Longo
D, Jameson
Loscalzo
Harrison'sCommittee
Principles of
Medicine,
19e;[Writing
2015 Available
at: to
Cardiology/American
Heart Association
Force
and the
EuropeanJ,Society
of J.Cardiology
forInternal
Practice
Guidelines
Committee
http://mhmedical.com/
Accessed:
May
08,
2017
Develop Guidelines for Management of Patients with Ventricular Arrhythmias and the Prevention of Sudden Cardiac Death]. J Am Coll Cardiol 48:1064,
Copyright © 2017 McGraw-Hill Education. All rights reserved
2006.)