A comparative study of epidural and cisternal pressure in dogs.
The epidural and cisternal pressure was recorded simultaneously in eight dogs. Epidural pressure was monitored with a Ladd fiberoptic sensor, and the cisternal pressure via a Statham transducer and a Grass polygraphy. Various pressure levels were compared when mock cerebrospinal fluid was injected into the cisterna magna. The results were analyzed statistically and, within a range of 0 to 70 mm Hg, a high degree of correlation was found between the pressures of the two compartments (r = 0.96 to 1.0).
D000818:Animals; D002555:Cerebrospinal Fluid / Q000502:physiology; D002946:Cisterna Magna / Q000502:physiology; D004285:Dogs; D004824:Epidural Space / Q000502:physiology*; D005336:Fiber Optic Technology; D007276:Injections, Intraventricular; D007427:Intracranial Pressure; D008991:Monitoring, Physiologic; D013115:Spinal Canal / Q000502:physiology*