Characteristic Signs and Symptoms
The characteristic signs and symptoms of HCM reflect the inability of the heart to effectively fill during diastole and mimic the symptoms of heart failure or valvular disease. The reduced LVEDV results in an inadequate cardiac output to meet the oxygen dema...
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...cker therapy, even if asymptomatic, as an attempt to prevent severe pressure gradients which could lead to SCD. However, if concern for SCD is strong, the prevailing recommendation is for ICD placement.
In patients that are considered at high risk of developing fatal ventricular arrhythmias, an implanted cardioverter-defibrillator (ICD) may be recommended to reduce the risk of SCD. The function of an ICD in patients with HCM is to prevent SCD by terminating fatal ventricular arrhythmias. This is either done as primary prevention, for patients at high risk for SCD, or secondary prevention, for patients with documented tachy-arrhythmias or a past episode of SCD. Interventions used for HOCM, the obstructive variety of HCM, such as ethanol ablations or myectomies, are not routinely offered for patients with the non-obstructive form of HCM.
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