Effect of fasting on diurnal fluctuation of parafoveal and peripapillary vessel density and related oculodynamic and haemodynamic parameters

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dc.authorid0000-0002-3591-721Xen_US
dc.authorid0000-0001-5742-1293en_US
dc.authorid0000-0003-2348-4856en_US
dc.contributor.authorDemirtaş, Atılım Armağan
dc.contributor.authorKarahan, Mine
dc.contributor.authorErdem, Seyfettin
dc.contributor.authorHan, Çağla Çilem
dc.contributor.authorKeklikçi, Uğur
dc.date.accessioned2022-06-29T13:26:44Z
dc.date.available2022-06-29T13:26:44Z
dc.date.issued2021en_US
dc.departmentDicle Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Göz Hastalıkları Ana Bilim Dalıen_US
dc.descriptionWOS:000632624000015
dc.descriptionPMID: 33383205
dc.description.abstractPurpose: To investigate the effects of Ramadan fasting on diurnal superficial-deep parafoveal vessel density (pfVD) and nerve head (NH)-radial peripapillary capillary (RPC) peripapillary vessel density (ppVD) using optical coherence tomography angiography (OCTA), as well as other related oculodynamic and haemodynamic parameters, and to compare these findings with those in the nonfasting period in healthy individuals. Methods: A total of 105 healthy individuals, 42 women and 63 men, were included in this prospective study. OCTA was used to examine the superficial-deep pfVD and NH-RPC ppVD. In the third week of Ramadan, OCTA readings were obtained twice daily at 08:00 and 16:00 hour (h) under fasting conditions and compared with nonfasting values 2 weeks after Ramadan. Both intraocular pressure (IOP) and blood pressure values were assessed accordingly. Results: The mean age (23-51) of individuals was 34.37 +/- 7.04 years. In comparison with the 08:00-h values, the 16:00-h IOPs, superficial-deep pfVDs and RPC ppVDs were substantially reduced both during the fasting and nonfasting periods (P = 0.001, P = 0.009, P = 0.006, P = 0.006, P = 0.004, P = 0.004, P = 0.41, P = 0.032 and P = 0.021). No differences were found in the diurnal change of superficial-deep pfVDs, NH-RPC ppVDs, IOPs and mean ocular perfusion pressures (MOPPs) between the fasting and nonfasting periods, whereas the same was not true for mean arterial blood pressures (MABPs) (P = 0.049). Conclusions: The parafoveal and peripapillary VDs (except for NHpp-VD) and IOPs were found to have decreased significantly throughout the day both in fasting and nonfasting periods. Our study confirms the diurnal changes in the IOPs, MOPPs, superficial-deep pfVDs and NH-RPC ppVDs under dehydration and normal terms.en_US
dc.identifier.citationDemirtaş, A.A., Karahan, M., Erdem, S., Han, Ç.Ç. ve Keklikçi, U. (2021). Effect of fasting on diurnal fluctuation of parafoveal and peripapillary vessel density and related oculodynamic and haemodynamic parameters. Photodiagnosis and Photodynamic Therapy, 33, 1-9. 10.1016/j.pdpdt.2020.102160en_US
dc.identifier.doi10.1016/j.pdpdt.2020.102160
dc.identifier.endpage9en_US
dc.identifier.issn1572-1000
dc.identifier.issn1873-1597
dc.identifier.pmid33383205
dc.identifier.scopus2-s2.0-85098663399
dc.identifier.scopusqualityQ1
dc.identifier.startpage1en_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S1572100020305147?via%3Dihub
dc.identifier.urihttps://hdl.handle.net/11468/10080
dc.identifier.volume33en_US
dc.identifier.wosWOS:000632624000015
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorKarahan, Mine
dc.institutionauthorErdem, Seyfettin
dc.institutionauthorHan, Çağla Çilem
dc.institutionauthorKeklikçi, Uğur
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofPhotodiagnosis and Photodynamic Therapy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectDiurnal fluctuation of retinal vessel densityen_US
dc.subjectFastingen_US
dc.subjectOCTAen_US
dc.subjectParafovealen_US
dc.subjectPeripapillaryen_US
dc.titleEffect of fasting on diurnal fluctuation of parafoveal and peripapillary vessel density and related oculodynamic and haemodynamic parametersen_US
dc.titleEffect of fasting on diurnal fluctuation of parafoveal and peripapillary vessel density and related oculodynamic and haemodynamic parameters
dc.typeArticleen_US

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