Prospective Clinical Study of Non-Invasive Intracranial Pressure Measurements in Open-Angle Glaucoma Patients and Healthy Subjects

<i>Background and Objective:</i> Glaucoma is a progressive optic neuropathy in which the optic nerve is damaged. The optic nerve is exposed not only to intraocular pressure (IOP) in the eye, but also to intracranial pressure (ICP), as it is surrounded by cerebrospinal fluid in the subara...

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Main Authors: Mantas Deimantavicius, Yasin Hamarat, Paulius Lucinskas, Rolandas Zakelis, Laimonas Bartusis, Lina Siaudvytyte, Ingrida Janulevicienė, Arminas Ragauskas
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Medicina
Subjects:
Online Access:https://www.mdpi.com/1010-660X/56/12/664
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author Mantas Deimantavicius
Yasin Hamarat
Paulius Lucinskas
Rolandas Zakelis
Laimonas Bartusis
Lina Siaudvytyte
Ingrida Janulevicienė
Arminas Ragauskas
author_facet Mantas Deimantavicius
Yasin Hamarat
Paulius Lucinskas
Rolandas Zakelis
Laimonas Bartusis
Lina Siaudvytyte
Ingrida Janulevicienė
Arminas Ragauskas
author_sort Mantas Deimantavicius
collection DOAJ
description <i>Background and Objective:</i> Glaucoma is a progressive optic neuropathy in which the optic nerve is damaged. The optic nerve is exposed not only to intraocular pressure (IOP) in the eye, but also to intracranial pressure (ICP), as it is surrounded by cerebrospinal fluid in the subarachnoid space. Here, we analyse ICP differences between patients with glaucoma and healthy subjects (HSs). <i>Materials and Methods:</i> Ninety-five patients with normal-tension glaucoma (NTG), 60 patients with high-tension glaucoma (HTG), and 62 HSs were included in the prospective clinical study, and ICP was measured non-invasively by two-depth transcranial Doppler (TCD). <i>Results:</i> The mean ICP of NTG patients (9.42 ± 2.83 mmHg) was significantly lower than that of HSs (10.73 ± 2.16 mmHg) (<i>p</i> = 0.007). The mean ICP of HTG patients (8.11 ± 2.68 mmHg) was significantly lower than that of NTG patients (9.42 ± 2.83 mmHg) (<i>p</i> = 0.008) and significantly lower than that of HSs (10.73 ± 2.16 mmHg) (<i>p</i> < 0.001). <i>Conclusions:</i> An abnormal ICP value could be one of the many influential factors in the optic nerve degeneration of NTG patients and should be considered as such instead of just being regarded as a “low ICP”.
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spelling doaj.art-5d9d2fd991f64b04a92ecbbb4c14c62e2023-09-02T02:28:41ZengMDPI AGMedicina1010-660X2020-11-015666466410.3390/medicina56120664Prospective Clinical Study of Non-Invasive Intracranial Pressure Measurements in Open-Angle Glaucoma Patients and Healthy SubjectsMantas Deimantavicius0Yasin Hamarat1Paulius Lucinskas2Rolandas Zakelis3Laimonas Bartusis4Lina Siaudvytyte5Ingrida Janulevicienė6Arminas Ragauskas7Health Telematics Science Institute, Kaunas University of Technology, 51423 Kaunas, LithuaniaHealth Telematics Science Institute, Kaunas University of Technology, 51423 Kaunas, LithuaniaHealth Telematics Science Institute, Kaunas University of Technology, 51423 Kaunas, LithuaniaHealth Telematics Science Institute, Kaunas University of Technology, 51423 Kaunas, LithuaniaHealth Telematics Science Institute, Kaunas University of Technology, 51423 Kaunas, LithuaniaEye Clinic, Lithuanian University of Health Sciences, 50161 Kaunas, LithuaniaEye Clinic, Lithuanian University of Health Sciences, 50161 Kaunas, LithuaniaHealth Telematics Science Institute, Kaunas University of Technology, 51423 Kaunas, Lithuania<i>Background and Objective:</i> Glaucoma is a progressive optic neuropathy in which the optic nerve is damaged. The optic nerve is exposed not only to intraocular pressure (IOP) in the eye, but also to intracranial pressure (ICP), as it is surrounded by cerebrospinal fluid in the subarachnoid space. Here, we analyse ICP differences between patients with glaucoma and healthy subjects (HSs). <i>Materials and Methods:</i> Ninety-five patients with normal-tension glaucoma (NTG), 60 patients with high-tension glaucoma (HTG), and 62 HSs were included in the prospective clinical study, and ICP was measured non-invasively by two-depth transcranial Doppler (TCD). <i>Results:</i> The mean ICP of NTG patients (9.42 ± 2.83 mmHg) was significantly lower than that of HSs (10.73 ± 2.16 mmHg) (<i>p</i> = 0.007). The mean ICP of HTG patients (8.11 ± 2.68 mmHg) was significantly lower than that of NTG patients (9.42 ± 2.83 mmHg) (<i>p</i> = 0.008) and significantly lower than that of HSs (10.73 ± 2.16 mmHg) (<i>p</i> < 0.001). <i>Conclusions:</i> An abnormal ICP value could be one of the many influential factors in the optic nerve degeneration of NTG patients and should be considered as such instead of just being regarded as a “low ICP”.https://www.mdpi.com/1010-660X/56/12/664primary open angle glaucomanormal-tension glaucomahigh-tension glaucomaintracranial pressurenon-invasive ICP measurement
spellingShingle Mantas Deimantavicius
Yasin Hamarat
Paulius Lucinskas
Rolandas Zakelis
Laimonas Bartusis
Lina Siaudvytyte
Ingrida Janulevicienė
Arminas Ragauskas
Prospective Clinical Study of Non-Invasive Intracranial Pressure Measurements in Open-Angle Glaucoma Patients and Healthy Subjects
Medicina
primary open angle glaucoma
normal-tension glaucoma
high-tension glaucoma
intracranial pressure
non-invasive ICP measurement
title Prospective Clinical Study of Non-Invasive Intracranial Pressure Measurements in Open-Angle Glaucoma Patients and Healthy Subjects
title_full Prospective Clinical Study of Non-Invasive Intracranial Pressure Measurements in Open-Angle Glaucoma Patients and Healthy Subjects
title_fullStr Prospective Clinical Study of Non-Invasive Intracranial Pressure Measurements in Open-Angle Glaucoma Patients and Healthy Subjects
title_full_unstemmed Prospective Clinical Study of Non-Invasive Intracranial Pressure Measurements in Open-Angle Glaucoma Patients and Healthy Subjects
title_short Prospective Clinical Study of Non-Invasive Intracranial Pressure Measurements in Open-Angle Glaucoma Patients and Healthy Subjects
title_sort prospective clinical study of non invasive intracranial pressure measurements in open angle glaucoma patients and healthy subjects
topic primary open angle glaucoma
normal-tension glaucoma
high-tension glaucoma
intracranial pressure
non-invasive ICP measurement
url https://www.mdpi.com/1010-660X/56/12/664
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