Myocarditis in Emergency Medicine Treatment & Management
- Author: David S Howes, MD; Chief Editor: David FM Brown, MD more...
Emergency Department Care
Because many cases of myocarditis are not clinically obvious, a high degree of suspicion is required to identify acute myocarditis.
Fortunately, most patients have mild symptoms consistent with viral syndromes, and they recover with simple supportive care on an outpatient basis.
Standard treatment of clinically significant disease includes the detection of dysrhythmia with cardiac monitoring, supplemental oxygen, and managing fluid status.
Left ventricular dysfunction developing from myocarditis should be approached in much the same manner as other causes of CHF with some exceptions (see Medication).
In general, sympathomimetic drugs should be avoided because they increase the extent of myocardial necrosis and mortality.[18]
Beta-blockers should be avoided in the acutely decompensating phase of illness, but studies that have used carvedilol in recovery phases have shown decreases in the expression of several different histochemicals, subsequent inflammatory myocyte infiltrate, and mortality.[18]
Patients who present with Mobitz II or complete heart block require temporary pacemaker placement. Very few patients require permanent pacer or automatic implantable cardioverter-defibrillator (AICD) placement.[4]
Consultations
Patients who require emergency room treatment for new-onset congestive heart failure (CHF), dysrhythmia, or cardiogenic shock should be admitted to the hospital with continuous cardiac monitoring and cardiology consultation.
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