Vascular compression of cranial nerves. I. History of the microvascular decompression operation

The development of the microvascular decompression (MVD) operation is revie wed. It is stressed that a few innovative neurosurgeons discovered the role of vascular compression of cranial nerves V and VII in trigeminal neuralgi a (TGN) and hemifacial spasm (HFS) and developed an operation, later to be known as the MVD operation. While the understanding of the pathophysiology of these disorders has improved, the surgical procedure has undergone littl e change since Gardner described the operation about 1960.