THE RELATIONSHIP BETWEEN INTRACRANIAL AND INTRAOCULAR PRESSURES

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HARIRCHIAN M.H.; MALEK MADANI M.H.; SABERI H.; SAJADI A.

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Journal: JOURNAL OF CURRENT OPHTHALMOLOGY Year:2004 | Volume:16 | Issue:4 Page(s): 87-90

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Title

THE RELATIONSHIP BETWEEN INTRACRANIAL AND INTRAOCULAR PRESSURES

Author(s)

HARIRCHIAN M.H. | MALEK MADANI M.H. | SABERI H. | SAJADI A. | Issue Writer Certificate

Keywords

INTRACRANIAL PRESSUREQ4

INTRAOCULAR PRESSUREQ4

AND LUMBAR PUNCTUREQ4

Abstract

Introduction: Different physical and chemical mechanisms that protect the central Nervous system (CNS) from injuries are the most important reasons that have made physicians look after indirect indexes in order to evaluate CNS function. One of the most important specifications of cranium, as the container of the brain, is its pressure, which its pathologic alterations will lead to major CNS dysfunctions. Nowadays, the most common method used for measuring INTRACRANIAL PRESSURE (ICP), is lumbar puncture (LP), which is a painful and invasive but sensitive procedure with some complications and contraindications. In this study we wanted to know if there is any relationship between ICP and INTRAOCULAR PRESSURE (IOP) which its measuring is very easy, noninvasive, cheap and safe. Materials and Methods: According to the results of one previous study the number of cases was estimated 50 that were chosen from the patients of neurology wards of two big hospitals of Tehran University of Medical Sciences by simple randomization. All the patients have undergone LP because of other clinical work-ups and a neurologist measured their ICPs with the same instrument and in the same position. Patients' lOPs were estimated by a Schiotz tonometer and by measuring the pressure of each eye with two different scales and obtaining the mean pressure from these 4 measurements by an ophthalmologist who had not any information of the patient's ICPs. Our exclusion criteria were: 1-Glaucoma histories, 2-History of using IOP altering drugs since last month, 3- Abnormal fundoscopic exam (except papillary edema in RICP group), 4-Age under 15. Results: From total 50 patients, 29 were female and the range of their age was between 15 to 73 years old. According to the disease type the patients were categorized in 8 different groups. Twenty-five of patients had raised ICP. Among the raised ICP cases 92% had raised IOP too; and all of the normal ICP patients had normal IOP. The statistical analysis by SPSS 10 software, showed an adjusted R-square of 0.912 between the two main variables (p<0.001) and on the basis of the regression model, this formula was obtained: ICP=1.16 IOP- 4.86. (ICP and IOP are in mmHg) Conclusion: Although LP is the best clinical method for (CP measurement, but according to the significant correlation between IOP and ICP and because of the noninvasive, safe, easy and cheap nature of measuring IOP in comparison to LP, it could be advisable in some special cases.

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APA: Copy

HARIRCHIAN, M.H., MALEK MADANI, M.H., SABERI, H., & SAJADI, A.. (2004). THE RELATIONSHIP BETWEEN INTRACRANIAL AND INTRAOCULAR PRESSURES. JOURNAL OF CURRENT OPHTHALMOLOGY, 16(4), 87-90. SID. https://sid.ir/paper/53181/en

Vancouver: Copy

HARIRCHIAN M.H., MALEK MADANI M.H., SABERI H., SAJADI A.. THE RELATIONSHIP BETWEEN INTRACRANIAL AND INTRAOCULAR PRESSURES. JOURNAL OF CURRENT OPHTHALMOLOGY[Internet]. 2004;16(4):87-90. Available from: https://sid.ir/paper/53181/en

IEEE: Copy

M.H. HARIRCHIAN, M.H. MALEK MADANI, H. SABERI, and A. SAJADI, “THE RELATIONSHIP BETWEEN INTRACRANIAL AND INTRAOCULAR PRESSURES,” JOURNAL OF CURRENT OPHTHALMOLOGY, vol. 16, no. 4, pp. 87–90, 2004, [Online]. Available: https://sid.ir/paper/53181/en

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