May 2007
Volume 48, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2007
Orbital Color Doppler Imaging Before and After Pars Plana Vitrectomy
P. Chelazzi; M. Prati; F. Contini; P. Sivelli; V. Viganò; S. Donati; C. Azzolini
Author Affiliations & Notes
  • P. Chelazzi
    Department of Ophthalmology, Insubria University, Varese, Italy
  • M. Prati
    Department of Ophthalmology, San Raffaele Hospital, Milan, Italy
  • F. Contini
    Department of Ophthalmology, Insubria University, Varese, Italy
  • P. Sivelli
    Department of Ophthalmology, Insubria University, Varese, Italy
  • V. Viganò
    Department of Ophthalmology, Insubria University, Varese, Italy
  • S. Donati
    Department of Ophthalmology, Insubria University, Varese, Italy
  • C. Azzolini
    Department of Ophthalmology, Insubria University, Varese, Italy
  • Footnotes
    Commercial Relationships P. Chelazzi, None; M. Prati, None; F. Contini, None; P. Sivelli, None; V. Viganò, None; S. Donati, None; C. Azzolini, None.
  • Footnotes
    Support None.
Investigative Ophthalmology & Visual Science May 2007, Vol.48, 2256. doi:
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      P. Chelazzi, M. Prati, F. Contini, P. Sivelli, V. Viganò, S. Donati, C. Azzolini; Orbital Color Doppler Imaging Before and After Pars Plana Vitrectomy. Invest. Ophthalmol. Vis. Sci. 2007;48(13):2256.

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Abstract

Purpose:: To evaluate the effects of Pars Plana Vitrectomy (PPV) on retrobulbar haemodynamics by Color Doppler Imaging (CDI) in patients with macular pucker.

Methods:: 10 eyes of 10 patients with macular pucker undergoing PPV with retrobulbar anaesthesia were evaluated before and immediately after surgery. Core and posterior vitreous was removed and peeling of macular pucker was carried out by standard three-port PPV. CDI was performed to measure peak systolic velocity, end diastolic velocity and resistive index of the ophthalmic artery, central retinal artery and posterior ciliary arteries. Maximum, minimum and mean velocities from central retinal vein and superior ophthalmic vein were also obtained by CDI. 10 eyes of 10 healthy subjects were evaluated as control group before surgery.

Results:: No significant differences were detected among preoperative and postoperative haemodynamics values in patients undergone PPV (p > 0.05). Besides, blood velocity Doppler parameters of orbital arteries and veins in patients with macular pucker were similar to those of control group (p > 0.05).

Conclusions:: This study demonstrates that PPV with retrobulbar anaesthesia does not induce significant alterations on retrobulbar haemodynamics in patients with macular pucker.

Keywords: imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • vitreoretinal surgery • blood supply 
© 2007, The Association for Research in Vision and Ophthalmology, Inc., all rights reserved. Permission to republish any abstract or part of an abstract in any form must be obtained in writing from the ARVO Office prior to publication.
Copyright © 2024 Association for Research in Vision and Ophthalmology.
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