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Assessment of choroidal thickness before and after steep Trendelenburg position using swept-source optical coherence tomography

DC FieldValueLanguage
dc.contributor.author김성수-
dc.contributor.author이승규-
dc.contributor.author임형택-
dc.date.accessioned2016-02-04T11:36:02Z-
dc.date.available2016-02-04T11:36:02Z-
dc.date.issued2015-
dc.identifier.issn0007-1161-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/140783-
dc.description.abstractBACKGROUND: To evaluate changes in choroidal thickness before and after steep Trendelenburg position (STP, 40° head-down) using automated segmentation software to analyse swept-source optical coherence tomography (SS-OCT) data. METHODS: The eyes of 20 healthy volunteers underwent a three-dimensional wide scanning protocol with SS-OCT (Topcon, Tokyo, Japan) at baseline, immediately after STP was initiated, and 5, 10 and 15 min after STP; blood pressure and heart rate were measured concurrently. The predictive mean difference was calculated using a generalised linear mixed model that adjusted for potential confounders. RESULTS: Mean choroidal thickness significantly and transiently increased immediately (268.18±9.24 μm, p<0.01) and 5 min (264.25±9.30 μm, p=0.03) after STP, relative to baseline (256.51±9.20 μm). However, choroidal thickness decreased by 10 min (262.51±9.34 μm, p=0.15) and 15 min (261.38±9.40 μm, p=0.37) after STP. Mean arterial pressure also transiently increased from baseline (78.2±1.2 mm Hg) immediately after STP (79.9±1.1 mm Hg, p=0.01), but normalised by 5 min after STP (p>0.05 for all comparisons ≥5 min). CONCLUSIONS: Choroidal thickness significantly but transiently increases after adopting STP, as evaluated by automated layer segmentation analysis of SS-OCT data.-
dc.description.statementOfResponsibilityopen-
dc.format.extent493~499-
dc.relation.isPartOfBritish Journal of Ophthalmology-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHAdult-
dc.subject.MESHBlood Pressure/physiology-
dc.subject.MESHChoroid/anatomy & histology*-
dc.subject.MESHFemale-
dc.subject.MESHHead-Down Tilt/physiology*-
dc.subject.MESHHealthy Volunteers-
dc.subject.MESHHeart Rate/physiology-
dc.subject.MESHHumans-
dc.subject.MESHImaging, Three-Dimensional-
dc.subject.MESHMale-
dc.subject.MESHOrgan Size-
dc.subject.MESHProspective Studies-
dc.subject.MESHTomography, Optical Coherence*-
dc.titleAssessment of choroidal thickness before and after steep Trendelenburg position using swept-source optical coherence tomography-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Ophthalmology (안과학)-
dc.contributor.googleauthorTyler Hyungtaek Rim-
dc.contributor.googleauthorChristopher Seungkyu Lee-
dc.contributor.googleauthorKangyoon Kim-
dc.contributor.googleauthorSung Soo Kim-
dc.identifier.doi10.1136/bjophthalmol-2014-305525-
dc.admin.authorfalse-
dc.admin.mappingfalse-
dc.contributor.localIdA00571-
dc.contributor.localIdA02913-
dc.contributor.localIdA03419-
dc.relation.journalcodeJ00412-
dc.identifier.pmid25336574-
dc.identifier.urlhttp://bjo.bmj.com/content/99/4/493.long-
dc.subject.keywordAnatomy-
dc.subject.keywordChoroid-
dc.subject.keywordImaging-
dc.contributor.alternativeNameKim, Sung Soo-
dc.contributor.alternativeNameLee, Seung Kyu-
dc.contributor.alternativeNameRim, Tyler H. T.-
dc.contributor.affiliatedAuthorKim, Sung Soo-
dc.contributor.affiliatedAuthorLee, Seung Kyu-
dc.contributor.affiliatedAuthorRim, Tyler Hyungtaek-
dc.rights.accessRightsnot free-
dc.citation.volume99-
dc.citation.number4-
dc.citation.startPage493-
dc.citation.endPage499-
dc.identifier.bibliographicCitationBritish Journal of Ophthalmology, Vol.99(4) : 493-499, 2015-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Ophthalmology (안과학교실) > 1. Journal Papers

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