Factors Promoting a Good Outcome in a Second Microvascular Decompression Operation When Hemifacial Spasm is Not Relieved After the Initial Operation

摘要

BACKGROUND: Microvascular decompression (MVD) has become the best treatment for hemifacial spasm (HFS); however, some patients do not obtain complete relief after the initial MVD. We analyzed a group of patients who underwent a second MVD, to identify the factors that prevented relief after the initial MVD and those that promote the success of the second procedure.