Intraocular pressure and ocular pulse amplitude variations during the Valsalva maneuver
Background To evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values in healthy, young, male subjects. Methods IOP and OPA values were measured before and during VM by Pascal dynamic contour tonometer (DCT) in...
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| Published in | Graefe's archive for clinical and experimental ophthalmology Vol. 248; no. 8; pp. 1183 - 1186 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
| Published |
Berlin/Heidelberg
Springer-Verlag
01.08.2010
Springer Nature B.V |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0721-832X 1435-702X 1435-702X |
| DOI | 10.1007/s00417-010-1359-0 |
Cover
| Abstract | Background
To evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values in healthy, young, male subjects.
Methods
IOP and OPA values were measured before and during VM by Pascal dynamic contour tonometer (DCT) in 55 eyes of 55 healthy male volunteers aged 20 through 27 years.
Results
Mean IOP before VM was 17.2 ± 2.9 mmHg and during the VM was 19.8 ± 4 mmHg. The increase in mean IOP during the VM was found to be statistically significant (
p
= 0.001). The IOP increased in 46 (83.6%) of 55 eyes. However, in nine eyes (16.4%), IOP decreased during the VM. Mean OPA value before VM was 3.6 ± 1.4 mmHg and during the VM was 3.6 ± 1.3 mmHg. The change in mean OPA value was found to be statistically insignificant (
p
= 0.9).
Conclusions
The IOP significantly increases during VM, whereas OPA remains stable. Strong autoregulatory mechanisms may provide consistent ocular perfusion in healthy subjects during VM. |
|---|---|
| AbstractList | Background
To evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values in healthy, young, male subjects.
Methods
IOP and OPA values were measured before and during VM by Pascal dynamic contour tonometer (DCT) in 55 eyes of 55 healthy male volunteers aged 20 through 27 years.
Results
Mean IOP before VM was 17.2 ± 2.9 mmHg and during the VM was 19.8 ± 4 mmHg. The increase in mean IOP during the VM was found to be statistically significant (
p
= 0.001). The IOP increased in 46 (83.6%) of 55 eyes. However, in nine eyes (16.4%), IOP decreased during the VM. Mean OPA value before VM was 3.6 ± 1.4 mmHg and during the VM was 3.6 ± 1.3 mmHg. The change in mean OPA value was found to be statistically insignificant (
p
= 0.9).
Conclusions
The IOP significantly increases during VM, whereas OPA remains stable. Strong autoregulatory mechanisms may provide consistent ocular perfusion in healthy subjects during VM. To evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values in healthy, young, male subjects. IOP and OPA values were measured before and during VM by Pascal dynamic contour tonometer (DCT) in 55 eyes of 55 healthy male volunteers aged 20 through 27 years. Mean IOP before VM was 17.2±2.9 mmHg and during the VM was 19.8±4 mmHg. The increase in mean IOP during the VM was found to be statistically significant (p=0.001). The IOP increased in 46 (83.6%) of 55 eyes. However, in nine eyes (16.4%), IOP decreased during the VM. Mean OPA value before VM was 3.6±1.4 mmHg and during the VM was 3.6±1.3 mmHg. The change in mean OPA value was found to be statistically insignificant (p=0.9). The IOP significantly increases during VM, whereas OPA remains stable. Strong autoregulatory mechanisms may provide consistent ocular perfusion in healthy subjects during VM.[PUBLICATION ABSTRACT] To evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values in healthy, young, male subjects. IOP and OPA values were measured before and during VM by Pascal dynamic contour tonometer (DCT) in 55 eyes of 55 healthy male volunteers aged 20 through 27 years. Mean IOP before VM was 17.2 +/- 2.9 mmHg and during the VM was 19.8 +/- 4 mmHg. The increase in mean IOP during the VM was found to be statistically significant (p = 0.001). The IOP increased in 46 (83.6%) of 55 eyes. However, in nine eyes (16.4%), IOP decreased during the VM. Mean OPA value before VM was 3.6 +/- 1.4 mmHg and during the VM was 3.6 +/- 1.3 mmHg. The change in mean OPA value was found to be statistically insignificant (p = 0.9). The IOP significantly increases during VM, whereas OPA remains stable. Strong autoregulatory mechanisms may provide consistent ocular perfusion in healthy subjects during VM. To evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values in healthy, young, male subjects.BACKGROUNDTo evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values in healthy, young, male subjects.IOP and OPA values were measured before and during VM by Pascal dynamic contour tonometer (DCT) in 55 eyes of 55 healthy male volunteers aged 20 through 27 years.METHODSIOP and OPA values were measured before and during VM by Pascal dynamic contour tonometer (DCT) in 55 eyes of 55 healthy male volunteers aged 20 through 27 years.Mean IOP before VM was 17.2 +/- 2.9 mmHg and during the VM was 19.8 +/- 4 mmHg. The increase in mean IOP during the VM was found to be statistically significant (p = 0.001). The IOP increased in 46 (83.6%) of 55 eyes. However, in nine eyes (16.4%), IOP decreased during the VM. Mean OPA value before VM was 3.6 +/- 1.4 mmHg and during the VM was 3.6 +/- 1.3 mmHg. The change in mean OPA value was found to be statistically insignificant (p = 0.9).RESULTSMean IOP before VM was 17.2 +/- 2.9 mmHg and during the VM was 19.8 +/- 4 mmHg. The increase in mean IOP during the VM was found to be statistically significant (p = 0.001). The IOP increased in 46 (83.6%) of 55 eyes. However, in nine eyes (16.4%), IOP decreased during the VM. Mean OPA value before VM was 3.6 +/- 1.4 mmHg and during the VM was 3.6 +/- 1.3 mmHg. The change in mean OPA value was found to be statistically insignificant (p = 0.9).The IOP significantly increases during VM, whereas OPA remains stable. Strong autoregulatory mechanisms may provide consistent ocular perfusion in healthy subjects during VM.CONCLUSIONSThe IOP significantly increases during VM, whereas OPA remains stable. Strong autoregulatory mechanisms may provide consistent ocular perfusion in healthy subjects during VM. |
| Author | Bilge, Ahmet Hamdi Yilmaz, Burhan Erdurmus, Mesut Aykan, Umit |
| Author_xml | – sequence: 1 givenname: Umit surname: Aykan fullname: Aykan, Umit organization: Department of Ophthalmology, GATA Haydarpasa Training Hospital – sequence: 2 givenname: Mesut surname: Erdurmus fullname: Erdurmus, Mesut email: merdurmus@yahoo.com organization: Department of Ophthalmology, GATA Haydarpasa Training Hospital – sequence: 3 givenname: Burhan surname: Yilmaz fullname: Yilmaz, Burhan organization: Department of Ophthalmology, GATA Haydarpasa Training Hospital – sequence: 4 givenname: Ahmet Hamdi surname: Bilge fullname: Bilge, Ahmet Hamdi organization: Department of Ophthalmology, GATA Haydarpasa Training Hospital |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/20333527$$D View this record in MEDLINE/PubMed |
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| Keywords | Valsalva maneuver Pascal dynamic contour tonometer Ocular pulse amplitude Intraocular pressure |
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To evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values... To evaluate the effect of the Valsalva maneuver (VM) on short-term variations of intraocular pressure (IOP) and ocular pulse amplitude (OPA) values in healthy,... |
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| SubjectTerms | Adult Blood Pressure - physiology Glaucoma Heart Rate - physiology Humans Intraocular Pressure - physiology Male Medicine Medicine & Public Health Ophthalmology Retinal Vessels - physiology Tonometry, Ocular Valsalva Maneuver - physiology Young Adult |
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| Title | Intraocular pressure and ocular pulse amplitude variations during the Valsalva maneuver |
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