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• Perioperative factors associated with severe early postoperative pain after single-level lumbar discectomy: A retrospective cohort study
  Erkan Bayram, Şükrü Çiftçi
  Challenge Journal of Perioperative Medicine (2026) 4(1) 15-20
  Background: Lumbar disc herniation is a frequent cause of radicular low back pain, and lumbar discectomy remains one of the most commonly performed spinal procedures when conservative treatment fails. Despite advances in surgical technique and perioperative ma...
• The predictive impact of perioperative hypofibrinogenemia on re-exploration in cardiac surgery: Insights from a single-center analysis
  Aslıhan Aykut, Nisan Özsan, Fatıma Beyza Artıran, Zeliha Aslı Demir
  Challenge Journal of Perioperative Medicine (2026) 4(1) 1-9
  Background: Postoperative bleeding in cardiac surgery is a serious complication associated with increased morbidity, mortality, and healthcare costs. The objective of this study was to identify independent risk factors for re-exploration due to bleeding in pat...
• Tonsillectomy in a pediatric patient with propionic acidemia: Anesthesia management and potential perioperative challenges
  Mehmet Akif Yilmaz, Gokhan Tekin, Berivan Bozan, Mirac Selcen Ozkal Yalin, Nuray Uzun, Muhammed Enes Aydin
  Challenge Journal of Perioperative Medicine (2025) 3(2) 62-64
  Propionic acidemia (PA) is a rare metabolic disorder caused by a deficiency in the propionyl-CoA carboxylase enzyme, leading to the accumulation of toxic metabolites. Surgical procedures pose a risk of metabolic decompensation in patients with PA, requiring ca...
• Assessing the efficacy of sugammadex based on ideal body weight for reversal of moderate neuromuscular blockade in obstetric patients across different BMI categories: A prospective study
  Metin Ozcan, Basak Altiparmak, Semra Gümüş Demirbilek
  Challenge Journal of Perioperative Medicine (2024) 2(3) 83-88
  Background: This investigation aimed to evaluate the effectiveness of administering 2 mg/kg intravenous (IV) sugammadex, dosed according to the ideal body weight (IBW) of obstetric patients across three different BMI groups, for the reversal of neuromuscular b...
• Prediction of postoperative acute kidney injury after cardiopulmonary bypass cardiac surgery: The role of preoperative inflammatory indices and intraoperative perfusion stress
  Mehmet Akif Yilmaz, Mehmet Zubeyir Guney, Nuray Uzun, Hasan Emre Kivanc, Ebubekir Sonmez, Muhammed Enes Aydin
  Challenge Journal of Perioperative Medicine (2026) 4(1) 21-31
  Background: Postoperative acute kidney injury is a frequent complication after cardiac surgery performed with cardiopulmonary bypass and is closely associated with increased mortality. This study aimed to evaluate the predictive value of preoperative renal fun...