Continuous Intracranial Pressure Recordings Research Articles

Continuous recording of intracranial pressure in the awake, drug-free cat

A simple and quantitatively reliable technique for continuous recording of intracranial pressure in awake, drug-free cats is presented. In addition, behavioral responses to acute elevation of intracranial pressure by slow intraventricular infusion in awake cats are described.

Intracranial hypertension in patients with ruptured intracranial aneurysm.

Simultaneous continuous recording of intracranial pressure (ICP) and systemic blood pressure was carried out in 26 patients admitted within 1 week after subarachnoid hemorrhage (SAH) due to a ruptured intracranial aneurysm. The patients were graded as described by Hunt and Hess. Recordings were made for 1 to 5 days. The more impaired the consciousness, the higher the rate of ICP. In Grade III, IV, and V patients, the mean ICP level was in the range of 15 to 40 mm Hg, 30 to 75 mm Hg, and exceeded 75 mm Hg, respectively. A definite correlation between vasospasm shown by cerebral arteriogram and the clinical grade was not observed. In our series of ICP recordings, we never observed a typical plateau wave. The variations of ICP seen in Grade III and IV patients were the B- and C-waves (15 to 45 mm Hg in amplitude) described by Lundberg, and those in Grade V patients were the high amplitude monotonous waves synchronous with the arterial pulses (15 to 40 mm Hg in amplitude). These phenomena may indicate that Grade III and IV patients with SAH are in a condition of cerebral vasomotor instability, and Grade V patients have cerebral vasomotor paralysis.

Methodology for intraventricular and subarachnoid continuous recording of intracranial pressure in clinical practice.

The methodology for continuous monitoring intracranial pressure (ICP) being presently employed in the Neurosurgery Service of the University of Pennsylvania is presented. The methods are intraventricular recording of ICP (IVP) and subarachnoid recording of ICP (SaP). The indications for employing either method are briefly presented. IVP is favored in those situations in which the lateral ventricles are enlarged and SaP is preferred in the cases of brain swelling or other situations in which there is a small ventricular system.

Telemetry of intracranial pressure (preliminary report) (author's transl)

The authors report the application of a telemetric system for continuous recording of intracranial pressure.

Technique for continuous intracranial pressure recording. Technical note.

Technique for continuous intracranial pressure recording. Technical note.

64. Postoperative Care using Continuous Recording of Intracranial Pressure

64. Postoperative Care using Continuous Recording of Intracranial Pressure