Ultrasonography versus conventional palpation for epidural analgesia in pediatrics undergoing midabdominal urological operations: a randomized clinical trial.

Background: Epidural block may be facilitated by ultrasound (US), particularly in pediatrics. Our goal was to compare pre-procedural US with traditional palpation for epidural block in pediatrics undergoing midabdominal urological procedures.

Methods: A total of 110 patients (1 to 12 years of age) with physical status Class I and II were enrolled in this study.

Optimal Control and Optimization of Grid-Connected PV and Wind Turbine Hybrid Systems Using Electric Eel Foraging Optimization Algorithms.

This paper presents a comprehensive exploration of a hybrid energy system that integrates wind turbines with photovoltaics (PVs) to address the intermittent nature of electricity production from these sources. The necessity for such technology arises from the sporadic nature of electricity generated by PV cells and wind turbines. The envisioned outcome is an emissions-free, more efficient alternative to traditional energy sources.

Foreign body in lung: a case report.

Introduction: The presence of a metal foreign body (FB) in the lungs can be a major contributor to pulmonary embolism. FB pulmonary embolism is a rare condition and difficult to diagnose due to its variable clinical presentations.

Case Presentation: This article presents a case of a 34-year-old male presented to our emergency department after getting injured with a FB fragment entering the upper right thigh.

A Subtraction-Average-Based Optimizer for Solving Engineering Problems with Applications on TCSC Allocation in Power Systems.

The present study introduces a subtraction-average-based optimization algorithm (SAOA), a unique enhanced evolutionary technique for solving engineering optimization problems. The typical SAOA works by subtracting the average of searcher agents from the position of population members in the search space. To increase searching capabilities, this study proposes an improved SAO (ISAO) that incorporates a cooperative learning technique based on the leader solution.

Ultrasonography versus palpation for spinal anesthesia in obese parturients undergoing cesarean delivery: a randomized controlled trial.

Introduction: Ultrasonography may facilitate neuraxial blocks in obstetrics. This randomized controlled trial aimed to compare preprocedural ultrasonography with landmark palpation for spinal anesthesia in obese parturients undergoing cesarean delivery.

Methods: 280 American Society of Anesthesiologists (ASA) physical status II-III parturients with body mass index ≥35 kg/m, full-term singleton pregnancy, undergoing elective cesarean delivery under spinal anesthesia, were randomly assigned to two equal groups (ultrasonography and palpation); preprocedural systematic ultrasound approach and conventional landmark palpation were performed, respectively.

Combined Colloid Preload and Crystalloid Coload Versus Crystalloid Coload During Spinal Anesthesia for Cesarean Delivery: A Randomized Controlled Trial.

Background: The optimal strategy of fluid administration during spinal anesthesia for cesarean delivery is still unclear. Ultrasonography of the inferior vena cava (IVC) has been recently used to assess the volume status and predict fluid responsiveness. In this double-blind, randomized controlled study, we compared maternal hemodynamics using a combination of 500-mL colloid preload and 500-mL crystalloid coload versus 1000-mL crystalloid coload.