Dataset Information

Intraoperative flap-related complications in FemtoLASIK surgeries performed with Visumax® femtosecond laser: A ten-year Romanian experience.

ABSTRACT: Incidence and clinical results of intraoperative flap and interface-related complications were investigated after Femtosecond-LASIK surgery, where flap creation was performed with VisuMax® femtosecond laser. A retrospective 10-year cohort study was conducted including all eyes treated for all refractive errors by Femtosecond-LASIK technique. All the flaps were made by the same refractive surgeon with the VisuMax® (Carl Zeiss Meditec) femtosecond laser. We report the intraoperative flap and interface-related complications in these eyes, also describing their management. The study included 4,032 eyes. Flap and interface-related complications were: opaque bubble layer (OBL) 21.18%, suction loss 1.29%, difficult docking 0.69%, difficult dissection of the flap 0.59%, bleeding from limbal blood vessels 0.35%, de-epithelialization of the flap 0.12%, and interface debris 0.025%. These situations were appropriately addressed, with favorable outcomes. Flap creation is an important step in LASIK surgery. The predictability and safety have improved since the flap incision is assisted by a femtosecond laser, but complications of the flap and interface can still occur during the flap creation. Refractive surgeons should be aware and properly manage any unusual situation.

SUBMITTER: Tabacaru B

PROVIDER: S-EPMC7401922 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

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Intraoperative flap-related complications in FemtoLASIK surgeries performed with Visumax® femtosecond laser: A ten-year Romanian experience.

Tăbăcaru Bogdana B Stanca Simona S Mocanu Valeria V Zemba Mihail M Stanca Horia Tudor HT Munteanu Mihnea M

Experimental and therapeutic medicine 20200618 3

Incidence and clinical results of intraoperative flap and interface-related complications were investigated after Femtosecond-LASIK surgery, where flap creation was performed with VisuMax® femtosecond laser. A retrospective 10-year cohort study was conducted including all eyes treated for all refractive errors by Femtosecond-LASIK technique. All the flaps were made by the same refractive surgeon with the VisuMax® (Carl Zeiss Meditec) femtosecond laser. We report the intraop ...[more]

PMID: 32765745

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Project description:Airway organoids derived from adult murine epithelial cells represent a complex 3D in vitro system mimicking the airway epithelial tissue’s native cell composition and physiological properties. In combination with a precise damage induction via femtosecond laser-based nanosurgery, this model allows for the examination of intra- and intercellular dynamics in the course of repair processes with a high spatio-temporal resolution, which can hardly be reached using in vivo approaches. For characterization of the organoids’ response to single or multiple-cell ablation, we first analyzed overall organoid survival and found that airway organoids were capable of efficiently repairing damage induced by femtosecond laser-based ablation of a single to ten cells within 24 h. An EdU staining assay further revealed a steady proliferative potential of airway organoid cells. Especially in the case of ablation of five cells, proliferation was enhanced within the first four hours upon damage induction, whereas ablation of ten cells was followed by a slight decrease in proliferation within this time frame. Analyzing individual trajectories of single cells within airway organoids, we found an increased migratory behavior in cells within close proximity to the ablation site following the ablation of ten, but not five cells. Bulk RNA sequencing and subsequent enrichment analysis revealed the differential expression of sets of genes involved in the regulation of epithelial repair, distinct signaling pathway activities such as Notch signaling, as well as cell migration after laser-based ablation. Together, our findings demonstrate that organoid repair upon ablation of ten cells involves the same key processes by which native airway epithelial wound healing is regulated. This marks the herein presented in vitro damage model suitable to study repair processes following acute airway injury, thereby posing a novel approach to gain insights into the mechanisms driving epithelial repair on a single-cell level.

Dataset Information

Intraoperative flap-related complications in FemtoLASIK surgeries performed with Visumax® femtosecond laser: A ten-year Romanian experience.

Publications

Intraoperative flap-related complications in FemtoLASIK surgeries performed with Visumax<sup>®</sup> femtosecond laser: A ten-year Romanian experience.

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