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• Effect of soil types on nonlinear earthquake behavior of buildings
  Memduh Karalar, Murat Demirköse, Necati Mert
  Challenge Journal of Structural Mechanics (2024) 10(1) 7-13
  The Winkler method, which is widely used today, assumes that the soil behaves elastically and does not take into account the soil shear stress values, it is insufficient to reflect the actual soil behavior. Especially in the earthquake calculations of rigid an...
• Comparison of ultrasound-guided fascia iliaca compartment block versus the combined obturator nerve and adductor canal block application in postoperative analgesia for patients undergoing arthroscopic knee surgery
  Betül Sevgi Sarıkaya, Bora Bilal, Feyza Çalışır, Cengizhan Yavuz, Gözen Öksüz, Ziya Kurşun, Hafize Öksüz
  Challenge Journal of Perioperative Medicine (2024) 2(3) 65-69
  Background: Arthroscopic knee surgery is a surgical intervention that is frequently performed by orthopedic clinics and new studies are constantly carried out by anesthetists to ensure effective pain control. This study aimed to compare the efficacy of ultraso...
• Comparison of the postoperative analgesic efficacy of ultrasound-guided suprainguinal fascia iliaca block applied with two different concentrations of bupivacaine in patients undergoing hip surgery under spinal anesthesia
  Kadem Koc, Busra Burcu Kucuk Ordulu, Ramazan Burak Ferli, Busra Yesilyurt, Nizamettin Guzel, Serkan Tulgar, Mustafa Süren
  Challenge Journal of Perioperative Medicine (2023) 1(1) 2-5
  Aim:  Management of postoperative pain in hip surgeries is important for the quality of recovery. When regional anesthesia techniques are added to the multimodal analgesia plan, they increase the effectiveness of the analgesia plan. Supra-inguinal fascia iliac...
• Efficacy of bilateral ultrasonography-guided transversus abdominis plane block after laparoscopic sleeve gastrectomy: Prospective, randomized, controlled study
  Selcuk Alver, Tarik Umutoglu, Ismail Sumer, Senniye Ulgen Zengin, Ufuk Topuz, Mefkur Bakan, Kadir Idin, Suleyman Bozkurt, Ziya Salihoglu
  Challenge Journal of Perioperative Medicine (2023) 1(1) 6-11
  Aim: Transversus Abdominis Plan (TAP) block is an interfascial plane block, commonly used as an analgesic technique   in abdominal surgeries. The aim of this study is to investigate the postoperative analgesic efficacy of bilateral ultrasonography (US) guided ...
• 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...