Thromboembolic Event in Isolated Non-compaction Cardiomyopathy With Multiple Sclerosis.

Non-compaction cardiomyopathy (NCCM) is a complex, exceedingly rare form of cardiomyopathy. Transient ischemic attack/stroke in NCCM may be cardioembolic or atherosclerotic in origin. While the connection between NCCM and neuromuscular conditions has been documented before, its association with neurological conditions, such as multiple sclerosis has not been established. Here, we present a case of a 45-year-old female with multiple sclerosis (MS) who presented in the context of a transient ischemic attack (TIA) and was found to have non-compaction cardiomyopathy complicated by thromboembolism. To our knowledge, this is the third reported case of NCCM with MS.