Early detection onset of flap failure using near infrared spectroscopy

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dc.contributor.authorSircan-Küçüksayan, Aslinur
dc.contributor.authorÖzkan, Özlenen
dc.contributor.authorÖzkan, Ömer
dc.contributor.authorKucuksayan, Ertan
dc.contributor.authorÜnal, Kerim
dc.contributor.authorCanpolat, Murat
dc.date.accessioned2026-01-24T12:20:50Z
dc.date.available2026-01-24T12:20:50Z
dc.date.issued2022
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractBackground: Near-infrared spectroscopy (NIRS) is widely used to assess flap perfusions by measuring tissue oxygen saturation (StO<inf>2</inf>). However, the StO<inf>2</inf> level for the onset of perfusion failure is still a controversial issue. Aim: This study proposes a new threshold of StO<inf>2</inf> level for detecting the onset of perfusion failure as early as possible to increase flap salvage rates. Methods: Twenty patients undergoing flap surgery were included in this study–13 flaps were implemented to cover defects that occurred due to trauma and 7 flaps to hide imperfections that occurred after cancer treatment. Thirteen flaps were in the lower extremity, six in the mandible, and one in the breast. NIRS was used to measure StO<inf>2</inf> in 240 flap regions of the 20 patients to determine flap viability using descriptive statistics. Results: The mean StO<inf>2</inf> values from healthy flap and control regions were obtained as 81.6% ± 0.36 and 82% ± 0.18, respectively. The lowest StO<inf>2</inf> value of 77.2% was defined as the onset of a vascular complication at a probability of 99.74% by subtracting three times the standard deviation from the mean StO<inf>2</inf> of healthy flaps. Vascular complications were observed from 21 regions in the four flaps with StO<inf>2</inf> values lower than 77.2%, but only one was lost. Conclusion: The threshold value for the onset of perfusion failure was a 5% decrease from the expected value, much lower than previously described thresholds that may facilitate the detection of perfusion failure in the early stage and increase salvage rates in flap revisions. © 2021 Acta Chirurgica Scandinavica Society.
dc.identifier.doi10.1080/2000656X.2021.1952211
dc.identifier.endpage150
dc.identifier.issn2000-656X
dc.identifier.issue3
dc.identifier.pmid34323644
dc.identifier.scopus2-s2.0-85111892362
dc.identifier.scopusqualityQ2
dc.identifier.startpage145
dc.identifier.urihttps://doi.org/10.1080/2000656X.2021.1952211
dc.identifier.urihttps://hdl.handle.net/20.500.12868/4618
dc.identifier.volume56
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherTaylor and Francis Ltd.
dc.relation.ispartofJournal of Plastic Surgery and Hand Surgery
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_Scopus_20260121
dc.subjectDetection of the onset of flap failure
dc.subjectnear-infrared spectroscopy
dc.subjectperfusion failure
dc.subjecttissue oxygen saturation
dc.titleEarly detection onset of flap failure using near infrared spectroscopy
dc.typeArticle

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