The relationship of intraocular pressure to intracranial pressure
| Autor: | Holt N. Murray, Gary Phillips, Abhinav Chandra, Matthew K Lashutka, Brian Hiestand |
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| Rok vydání: | 2004 |
| Předmět: |
Male
Ventriculostomy Intraocular pressure Intracranial Pressure genetic structures medicine.medical_treatment Glaucoma Pilot Projects Sensitivity and Specificity Brain herniation law.invention Tonometry Ocular law Intensive care medicine Humans Prospective Studies Prospective cohort study Intraocular Pressure Intracranial pressure business.industry Middle Aged medicine.disease eye diseases Pressure measurement Anesthesia Emergency Medicine Regression Analysis Female Ocular Hypertension Intracranial Hypertension business Intracranial Hemorrhages |
| Zdroj: | Annals of Emergency Medicine. 43:585-591 |
| ISSN: | 0196-0644 |
| Popis: | Study objective The early detection of intracranial hypertension can lead to timely medical and neurosurgical intervention, preventing brain herniation and death. In this investigation, we hypothesize that an increase in intracranial pressure can be detected by an increase in intraocular pressure using noninvasive existing technology, the handheld tonometer. Methods This was a prospective observational pilot study conducted at a community hospital. Admitted patients with an invasive intracranial pressure monitor were solicited for participation. Patients were excluded if they had known glaucoma or had sufficient ocular or facial trauma that precluded intraocular pressure determination. Simultaneous measurements of intracranial and intraocular pressure were recorded. Results Twenty-seven patients were enrolled, and 76 individual measurements were performed. All patients with an abnormal intracranial pressure had an abnormal intraocular pressure; similarly, all patients with a normal intracranial pressure had a normal intraocular pressure (sensitivity 1.00, 95% confidence interval 0.86 to 1.0; specificity 1.0, 95% confidence interval 0.93 to 1.0) Conclusion Abnormal intraocular pressure as measured with the handheld tonometer is an excellent indicator of abnormal intracranial pressure in patients with known intracranial pathology. |
| Databáze: | OpenAIRE |
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