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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 25:126-129, January 2004
© 2004 American Society of Neuroradiology

Case Report
BRAIN

Management of Patients with Stunned Myocardium Associated with Subarachnoid Hemorrhage

Rajan Jain^a, John Deveikis^a and Byron G. Thompson^a

^a From the Division of Neuroradiology and Department of Radiology, University of Michigan Health System, Ann Arbor, MI

Address reprint requests to Rajan Jain, MD, Division of Neuroradiology, Department of Radiology, Henry Ford Health System, 2799 N Grand Blvd, Detroit, MI 48202

Summary: Cardiac complications are well known after aneurysmal subarachnoid hemorrhage. Electrocardiographic changes occur in 50% to 100% of such cases. Arrhythmias, left ventricular dysfunction, and frank myocardial infarction are infrequently observed. Myocardial infarction must be differentiated from neurogenic stunned myocardium, which is a reversible condition. From 1996 to 2001, 105 patients with aneurysmal subarachnoid hemorrhage underwent endovascular treatment at the University of Michigan. Of these, four patients with no history of cardiac disease experienced cardiac failure related to neurogenic stunned myocardium. All had signs of left ventricular dysfunction, electrocardiographic changes, and elevated cardiac enzymes. Three had pulmonary edema at presentation. All were diagnosed with myocardial infarction. One underwent coronary angiography, which was normal. All were considered poor surgical candidates and underwent endovascular treatment of the aneurysms. Three of four patients developed symptomatic vasospasm, and two required balloon angioplasty. Three patients achieved good outcomes. The eldest died from severe vasospasm that was unresponsive to angioplasty. Reversible cardiac failure associated with subarachnoid hemorrhage may be due the neurogenic stunned myocardium. Frequent symptomatic vasospasm occurs, possibly related to poor cardiac output and the inability to optimize hyperdynamic hypervolemic therapy, particularly with compromised volume status. These patients can be treated with endovascular therapy of the aneurysms and balloon angioplasty as needed. With aggressive management, patients can recover from these reversible cardiac complications.

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