特発性脊髄硬膜外血腫

Spontaneous Spinal Epidural Hematoma

Ⅰ．はじめに

　1869年，Jacksonが最初の報告をして以来すでに数多くの特発性脊髄硬膜外血腫について報告されており，現在ではすでに珍らしいものとは見なされなくなっている．

　種々の疾患に対して行われる抗凝固治療がその頻度を増大させたが，抗凝固治療が行われず，また外傷もなくこれが発現することも知られている．

A case of spontaneous spinal epidural hematoma during pregnancy is reported. Although we operated the patient 14 hours after the initial symptoms, the functional prognosis was poor. It is believed that the spinal cord was damaged irreversiblly because of the rapid development of spinal cord edema. Referring to the reported cases we discussed symptoms, diagnosis and therapy as well as etiology. As to our case it is supposed that the rise of epidural venous pressure due to the pregnancy caused the rupture of the epidural venous plexus.