CARDIOVASCULAR collapse following spinal anesthesia.
D000758:Anesthesia; D000775:Anesthesia, Spinal / Q000150:complications*; D000776:Anesthesiology; D002318:Cardiovascular Diseases / Q000209:etiology*; D012769:Shock
ANESTHESIA, SPINAL/complications; CARDIOVASCULAR DISEASES/etiology and pathogenesis