Hematoma Block as an Alternate Mode of Anesthesia for Management of Extra-Articular Distal End Radius Fracture with Percutaneous K-Wire Fixation in Emergency Department.

Introduction: Fractures of the distal end of the radius have a higher prevalence, particularly in older individuals, and typically necessitate a painful procedure of reduction by manipulation. Various regional blocks, including hematoma blocks, are used to manage this pain. Hematoma block is simple, effective, and safe, providing adequate analgesia without increasing post-procedural infection risks.

Analysis of formose sugar and formaldehyde by high-performance liquid chromatography.

Formose sugar and formaldehyde (HCHO) were analyzed using high-performance liquid chromatography (HPLC) utilizing a CarboPac PA1 column (Dionex) and pulsed amperometric detection. This HPLC system was unsuitable for the analysis of formose sugar and HCHO and thus reducing sugars and unconverted HCHO were determined by endowing them with charges through a derivatization method using 2,4-dinitrophenylhydrazine. The separation and detection of compounds were performed by three Chromolith RP-C18 columns (Merck) and diode array detection, at a wavelength of 360 nm ultraviolet light, respectively.