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Blood Perfusion in Rotational Full-Thickness Lower Eyelid Flaps Measured by Laser Speckle Contrast Imaging

Tenland, Kajsa LU ; Berggren, Johanna V LU ; Dybelius Ansson, Cu LU ; Hult, Jenny LU ; Dahlstrand, Ulf LU ; Lindstedt, Sandra LU ; Sheikh, Rafi LU and Malmsjö, Malin LU (2019) In Ophthalmic Plastic and Reconstructive Surgery
Abstract

PURPOSE: Large upper eyelid defects can be repaired by rotational full-thickness lower eyelid flaps. The aim was to measure the blood perfusion in such flaps, and how it is affected by the length of the flaps, and the degree of rotation and stretching.

METHODS: Nine patients underwent the Quickert procedure for entropion repair in which a full-thickness eyelid flap of approximate width 0.5 cm and length 2 cm was dissected in the lower eyelid. This generates a full-thickness eyelid flap similar to that used to repair large upper eyelid defects. Perfusion was measured using laser speckle contrast imaging, before and after the flap was rotated 90° and 120°, and stretched using forces of 0.5, 1, and 2 N.

RESULTS: Blood perfusion... (More)

PURPOSE: Large upper eyelid defects can be repaired by rotational full-thickness lower eyelid flaps. The aim was to measure the blood perfusion in such flaps, and how it is affected by the length of the flaps, and the degree of rotation and stretching.

METHODS: Nine patients underwent the Quickert procedure for entropion repair in which a full-thickness eyelid flap of approximate width 0.5 cm and length 2 cm was dissected in the lower eyelid. This generates a full-thickness eyelid flap similar to that used to repair large upper eyelid defects. Perfusion was measured using laser speckle contrast imaging, before and after the flap was rotated 90° and 120°, and stretched using forces of 0.5, 1, and 2 N.

RESULTS: Blood perfusion decreased gradually from the base to the tip of the flap; being 75% of the reference value 0.5 cm from the base, 63% at 1.0 cm, 55% at 1.5, 23% at 1.75 cm, and 4% at 2.0 cm. Rotating the flaps by 90° or 120° had little effect on the perfusion. Stretching reduced the perfusion from 63% to 32% at 2 N, when measured at 1 cm. The combination of stretching and rotation did not lead to any further decrease.

CONCLUSIONS: Blood perfusion in lower eyelid rotational flaps seems to be more sensitive to stretching than to rotation. Provided the flap is no longer than 1.5 cm, the perfusion will be greater than 20%, even when rotated, which should be sufficient for adequate survival and healing.

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Contribution to journal
publication status
epub
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in
Ophthalmic Plastic and Reconstructive Surgery
publisher
Lippincott Williams and Wilkins
external identifiers
  • scopus:85081945724
  • pmid:31876674
ISSN
1537-2677
DOI
10.1097/IOP.0000000000001496
language
English
LU publication?
yes
id
60923be4-10a5-470b-b0a1-ef08ca609b6d
date added to LUP
2019-12-28 11:14:10
date last changed
2020-04-19 06:08:51
@article{60923be4-10a5-470b-b0a1-ef08ca609b6d,
  abstract     = {<p>PURPOSE: Large upper eyelid defects can be repaired by rotational full-thickness lower eyelid flaps. The aim was to measure the blood perfusion in such flaps, and how it is affected by the length of the flaps, and the degree of rotation and stretching.</p><p>METHODS: Nine patients underwent the Quickert procedure for entropion repair in which a full-thickness eyelid flap of approximate width 0.5 cm and length 2 cm was dissected in the lower eyelid. This generates a full-thickness eyelid flap similar to that used to repair large upper eyelid defects. Perfusion was measured using laser speckle contrast imaging, before and after the flap was rotated 90° and 120°, and stretched using forces of 0.5, 1, and 2 N.</p><p>RESULTS: Blood perfusion decreased gradually from the base to the tip of the flap; being 75% of the reference value 0.5 cm from the base, 63% at 1.0 cm, 55% at 1.5, 23% at 1.75 cm, and 4% at 2.0 cm. Rotating the flaps by 90° or 120° had little effect on the perfusion. Stretching reduced the perfusion from 63% to 32% at 2 N, when measured at 1 cm. The combination of stretching and rotation did not lead to any further decrease.</p><p>CONCLUSIONS: Blood perfusion in lower eyelid rotational flaps seems to be more sensitive to stretching than to rotation. Provided the flap is no longer than 1.5 cm, the perfusion will be greater than 20%, even when rotated, which should be sufficient for adequate survival and healing.</p>},
  author       = {Tenland, Kajsa and Berggren, Johanna V and Dybelius Ansson, Cu and Hult, Jenny and Dahlstrand, Ulf and Lindstedt, Sandra and Sheikh, Rafi and Malmsjö, Malin},
  issn         = {1537-2677},
  language     = {eng},
  month        = {11},
  publisher    = {Lippincott Williams and Wilkins},
  series       = {Ophthalmic Plastic and Reconstructive Surgery},
  title        = {Blood Perfusion in Rotational Full-Thickness Lower Eyelid Flaps Measured by Laser Speckle Contrast Imaging},
  url          = {http://dx.doi.org/10.1097/IOP.0000000000001496},
  doi          = {10.1097/IOP.0000000000001496},
  year         = {2019},
}