Impact of Valsalva manuever on choroidal vascularity index, central choroid and central macula.

Autor: Berhuni M; Ersin Arslan Research and Education Hospital, Gaziantep, Turkey. Electronic address: mustafaberhuni@gmail.com., Soysal GG; Ersin Arslan Research and Education Hospital, Gaziantep, Turkey., Tiskaoglu NS; Ersin Arslan Research and Education Hospital, Gaziantep, Turkey., Ozcan ZO; Ersin Arslan Research and Education Hospital, Gaziantep, Turkey.
Jazyk: angličtina
Zdroj: Photodiagnosis and photodynamic therapy [Photodiagnosis Photodyn Ther] 2023 Jun; Vol. 42, pp. 103570. Date of Electronic Publication: 2023 Apr 15.
DOI: 10.1016/j.pdpdt.2023.103570
Abstrakt: Background: Evaluation of the effects of the Valsalva maneuver on choroidal vascularity index, central choroid and the central macula.
Methods: Eighty-four eyes of 42 healthy volunteers were evaluated in this prospective study. The central macular layer was assesed using the retinal map mode of the spectral domain OCT (Optovue RTVue XR, Optovue Inc., Fremont, CA), OCT images taken in the Enhanced Deep Imaging mode were transferred to the Image J program and the choroidal vascularity index and subfoveal choroidal thickness measurements were calculated.
Results: The mean age of volunteers was 35.4±7.2 years. Choroidal vascularity index, subfoveal choroidal thickness, central macular thickness and intraocular pressure measurements in the resting position were 67.99±2.1%, 337.73±12.8 µm, 232.04± 8.4 µm, 14.04±2.5 mmHg respectively, during Valsalva maneuver were 69.44±2.1%, 351.15±12.2 µm, 238.84±8.1 µm, 19.4±5.4 mmHg respectively. There was a statistically significant increase during Valsalva maneuver.
Conclusion: The Valsalva maneuver may cause temporary changes in choroidal vascularity index, subfoveal choroidal thickness, central macular thickness and intraocular pressure. These measurements may be misinterpreted in situations where patients breath-hold inadvertantly causing the Valsalva maneuver.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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