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Titolo:
RETROBULBAR HEMODYNAMIC-CHANGES STUDIED BY COLOR DOPPLER IMAGING IN GLAUCOMA
Autore:
LIU CJ; CHOU YH; CHOU JC; CHIOU HJ; CHIANG SC; LIU JH;
Indirizzi:
F4,46-4 TIEN MOU W RD TAIPEI TAIWAN VET GEN HOSP,DEPT OPHTHALMOL TAIPEI TAIWAN NATL YANG MING UNIV,SCH MED,SECT OPHTHALMOL TAIPEI 112 TAIWAN VET GEN HOSP,DEPT RADIOL TAIPEI TAIWAN NATL YANG MING UNIV,SCH MED,SECT RADIOL TAIPEI 112 TAIWAN VET GEN HOSP,INFORMAT SERV CTR TAIPEI TAIWAN
Titolo Testata:
Eye
, volume: 11, anno: 1997,
parte:, 6
pagine: 818 - 826
SICI:
0950-222X(1997)11:<818:RHSBCD>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
OPEN-ANGLE GLAUCOMA; BLOOD-FLOW; OCULAR PRESSURE; AUTO-REGULATION; CIRCULATION; VELOCITY; ULTRASOUND; VISCOSITY; ORBIT; EYE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
36
Recensione:
Indirizzi per estratti:
Citazione:
C.J. Liu et al., "RETROBULBAR HEMODYNAMIC-CHANGES STUDIED BY COLOR DOPPLER IMAGING IN GLAUCOMA", Eye, 11, 1997, pp. 818-826

Abstract

Purpose: To determine the effect of spontaneously elevated intraocular pressure (IOP) on the ocular circulation, and evaluate the result ofIOP-lowering procedures in terms of haemodynamics, Methods: Colour Doppler imaging (CDI) was employed to determine the peak systolic velocity (PSV), end-diastolic velocity (EDV) and time average maximal velocity (TAMV), as well as the Pourcelot ratio (PR) and pulsatility index (PI), of the central retinal artery (CRA), posterior ciliary arteries (PCA) and ophthalmic artery, Various CDI parameters of the eyes with elevated IOP were compared with those of the clinically healthy fellow eyes and the control eyes, separately, Also, data from CDI of glaucoma eyes obtained during the period of elevated IOP and then following IOP-lowering procedures were compared, deliberately avoiding the influence of glaucoma medications, Results: Eyes (n=12) with elevated IOP showed significantly decreased flow velocities of the CRA and significantly increased PR and PI of the nasal and temporal PCA, compared with thefellow and control eyes, respectively, Following IOP-lowering procedures, the PR and PI of the nasal PCA decreased significantly, Conclusion: Spontaneously elevated IOP may induce haemodynamic changes in the CRA and PCA, but no significant change is identified in the ophthalmic artery, Plow velocities tend to decrease while the resistance indices tend to increase with elevated IOP, Such haemodynamic changes may reverse following normalisation of IOP.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 18:43:36