• Nicolas Leister, Björn Bachmann, Mario Matthaei, Uwe Trieschmann, Christine Schumacher, Vanessa Löw, Bernd W Böttiger, Silvia Schrittenlocher, Ludwig M Heindl, and Claus Cursiefen.
• Department of Anesthesiology and Intensive Care Medicine, University Hospital Cologne, Kerpener Street 62, 50937, Cologne, Germany. nicolas.leister@uk-koeln.de.
• BMC Anesthesiol. 2023 Sep 9; 23 (1): 305305.

BackgroundPatients undergoing corneal abrasion as part of Descemet membrane endothelial keratoplasty (DMEK) under general anesthesia suffer from early burning pain postoperatively. This pain appears to be poorly treatable with systemic analgesics. This study aims to evaluate postoperative pain management using topical lidocaine gel after DMEK with iatrogenic corneal abrasion.MethodsRetrospective analysis of 28 consecutive patients undergoing DMEK with corneal abrasion from October 19, 2021, to November 12, 2021, at a German university hospital. Patients during week 1 and 2 received peri-operative standard pain treatment (cohort S) and additional local lidocaine gel during week 3 and 4 immediately postoperatively (cohort L).Results13 patients were included in cohort S and 15 patients in cohort L. At awakening all patients (100%) in cohort S reported burning pain, and six of 15 patients (40%) in cohort L reported burning pain. Burning pain scores were significantly lower in cohort L (p < 0.001 at awakening, p < 0.001 at 10 min, p < 0.001 at 20 min, p < 0.001 at 30 min, p = 0.007 at 40 min after awakening, and p < 0.001 at leaving recovery room). No significant differences between cohort S and cohort L were detected concerning surgical outcome during 1-month-follow-up (p = 0.901 for best corrected visual acuity).ConclusionPatients undergoing DMEK with corneal abrasion suffer significant pain in the recovery room. A single dose of topic lidocaine gel reduces the early postoperative burning pain sufficiently and does not affect the surgical outcome.© 2023. BioMed Central Ltd., part of Springer Nature.

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