Inferior rectus muscle detachment during strabismus surgery has a major effect on anterior segment perfusion, as shown by LSCI perfusion monitoring
Engqvist, Linn LU ; Öhnell, Hanna Maria LU
; Nygren, Ella
; Merdasa, Aboma
LU
; Sheikh, Rafi
LU
; Dahlstrand, Ulf
LU
and Malmsjö, Malin
LU
(2024)
In British Journal of Ophthalmology
- Abstract
BACKGROUND: Anterior segment ischaemia (ASI) is a rare but feared complication associated with strabismus surgery, arising from damage of the anterior ciliary arteries that run along the extraocular rectus muscles. It has been reported that the risk of ASI following strabismus surgery increases when the vertical rectus muscles are involved. The aim of the present study was to monitor anterior segment perfusion in real time during inferior rectus muscle surgery.
METHODS: 17 eyes in 16 patients undergoing surgery on the inferior rectus muscle were included. Perfusion was measured in the adjacent paralimbal and iris tissue, before and after inferior rectus muscle detachment, using laser speckle contrast imaging.
RESULTS: The... (More)
BACKGROUND: Anterior segment ischaemia (ASI) is a rare but feared complication associated with strabismus surgery, arising from damage of the anterior ciliary arteries that run along the extraocular rectus muscles. It has been reported that the risk of ASI following strabismus surgery increases when the vertical rectus muscles are involved. The aim of the present study was to monitor anterior segment perfusion in real time during inferior rectus muscle surgery.
METHODS: 17 eyes in 16 patients undergoing surgery on the inferior rectus muscle were included. Perfusion was measured in the adjacent paralimbal and iris tissue, before and after inferior rectus muscle detachment, using laser speckle contrast imaging.
RESULTS: The paralimbal vascular network was clearly visualised in the perfusion images, whereas the signals from the iris were lower. Detachment of the inferior rectus muscle resulted in a reduction in paralimbal and iris perfusion by a median of 33% (p<0.0001) and 11% (p=0.0174), respectively.
CONCLUSION: Strabismus surgery involving the inferior rectus muscle significantly affects perfusion to the anterior segment, and to a greater extent than previously observed following surgery on horizontal rectus muscles (where the decrease was only 23% and 5%).
(Less)
- author
- Engqvist, Linn
LU
; Öhnell, Hanna Maria
LU
; Nygren, Ella
; Merdasa, Aboma
LU
; Sheikh, Rafi
LU
; Dahlstrand, Ulf
LU
and Malmsjö, Malin
LU
- organization
-
- LU Profile Area: Light and Materials
- Ophthalmology, Lund
- Retinopathy of Prematurity (research group)
- Ophthalmology (Malmö) (research group)
- LTH Profile Area: Engineering Health
- LTH Profile Area: Photon Science and Technology
- Ophthalmology Imaging Research Group (research group)
- Clinical and experimental lung transplantation (research group)
- NPWT technology (research group)
- publishing date
- 2024-12-12
- type
- Contribution to journal
- publication status
- epub
- subject
- in
- British Journal of Ophthalmology
- publisher
- BMJ Publishing Group
- external identifiers
-
- pmid:39667812
- scopus:85213693565
- ISSN
- 1468-2079
- DOI
- 10.1136/bjo-2024-325916
- language
- English
- LU publication?
- yes
- id
- 0bbf39fc-f3b4-4eba-97e8-790d6ab8df17
- date added to LUP
- 2024-12-13 10:14:11
- date last changed
- 2025-06-11 13:45:31
@article{0bbf39fc-f3b4-4eba-97e8-790d6ab8df17,
abstract = {{<p>BACKGROUND: Anterior segment ischaemia (ASI) is a rare but feared complication associated with strabismus surgery, arising from damage of the anterior ciliary arteries that run along the extraocular rectus muscles. It has been reported that the risk of ASI following strabismus surgery increases when the vertical rectus muscles are involved. The aim of the present study was to monitor anterior segment perfusion in real time during inferior rectus muscle surgery.</p><p>METHODS: 17 eyes in 16 patients undergoing surgery on the inferior rectus muscle were included. Perfusion was measured in the adjacent paralimbal and iris tissue, before and after inferior rectus muscle detachment, using laser speckle contrast imaging.</p><p>RESULTS: The paralimbal vascular network was clearly visualised in the perfusion images, whereas the signals from the iris were lower. Detachment of the inferior rectus muscle resulted in a reduction in paralimbal and iris perfusion by a median of 33% (p<0.0001) and 11% (p=0.0174), respectively.</p><p>CONCLUSION: Strabismus surgery involving the inferior rectus muscle significantly affects perfusion to the anterior segment, and to a greater extent than previously observed following surgery on horizontal rectus muscles (where the decrease was only 23% and 5%).</p>}},
author = {{Engqvist, Linn and Öhnell, Hanna Maria and Nygren, Ella and Merdasa, Aboma and Sheikh, Rafi and Dahlstrand, Ulf and Malmsjö, Malin}},
issn = {{1468-2079}},
language = {{eng}},
month = {{12}},
publisher = {{BMJ Publishing Group}},
series = {{British Journal of Ophthalmology}},
title = {{Inferior rectus muscle detachment during strabismus surgery has a major effect on anterior segment perfusion, as shown by LSCI perfusion monitoring}},
url = {{http://dx.doi.org/10.1136/bjo-2024-325916}},
doi = {{10.1136/bjo-2024-325916}},
year = {{2024}},
}