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Posts Tagged ‘live icd shock’

This post , is  probably not meant for cardiology professionals.

Few technologies are clear winners in modern medicine. ICDs play  games  that would rival the God !

What is an ICD ?

Here is a man , who  drops almost dead by a fatal cardiac arrhythmia . In few seconds  ICD  machine recognises this arrhythmia ,charges itself and  fires a shock  of about 30 joules direct current .The arrhythmia is reverted and the fellow gets up as if  nothing has happened !

Watch this video

This revolutionary devices are  to be used judiciously in individuals with high risk  for dangerous cardiac arrhythmia.

The current  indications  as on 2012

Post MI  ( Only after  4O days*)
LV dysfunction EF ≤ 35%   NYHA  II or III  ( Please note , If  ≤ 30%, even Class I  NYHA can be implanted an ICD) *Why 40 days ?  Residual ischemic, Irritable  focus  should settle down
Myocardial disease
  • Nonischemic DCM  EF ≤ 35% with documented VT
  • Rarely other structural heart disease with recurrent risk for VT ( Few HCMs)
Primary electrical disease
  • Survivors of cardiac arrest due to VF without any completely reversible causes (Includes Brugada )
  • Malignant forms of syncope  with   idiopathic recurrent VT /VF
  • Congenital Long QT syndromes not amenable to beta blockers

Reference

Guidelines ICD pacemaker 2012 ACC AHA

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