Topic: ESOPRS 2021 ePoster sessions
Time: Sep 17, 2021 16:00 Amsterdam, Berlin, Rome, Stockholm, Vienna, 15:00 London
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Blood perfusion and oxygenation in human eyelid skin flaps examined by laser speckle contrast imaging and hyperspectral imaging – importance of flap length
Author: Josefine Bunke
ePoster Number: 228
Excision of periocular tumors often requires reconstructive surgery with skin grafts or flaps. Flap survival is dependent on sufficient blood perfusion and oxygenation (sO2). The purpose of the present study was to investigate how the perfusion and sO2 in human eyelid skin flaps is affected by flap length.
10 patients (20 eyelids) scheduled for blepharoplasty were included in the study. The upper eyelid skin was dissected, releasing a ~45 mm long piece of skin, while allowing the ~7 mm wide medial part of the skin to remain attached, to resemble a myocutaneous flap. The eyelids were monitored with laser speckle contrast imaging and hyperspectral imaging to determine the perfusion and sO2 of the flap.
Blood perfusion decreased from the base to the tip of the flap. Close to the base (5 mm away), the perfusion was 69 % of the reference value, while at 25 mm from the base it was only 16 %. sO2 was only slightly reduced along the length of the flap.
Perfusion decreases considerably over the length of the eyelid flap, while sO2 is preserved to a greater extent. These results thus indicate that the rich blood supply of the upper eyelid is sufficient to maintain adequate sO2 of the flap.
|First name||Last name||Base Hospital / Institution|
|Pernilla||Rosenquist||Växjö Central Hospital|
Abstract ID: 21-119