Sang Young So

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BACKGROUND Previous studies have shown that if performed without radiographic guidance, the loss of resistance (LOR) technique can result in inaccurate needle placement in up to 30% of lumbar epidural blocks. To date, no study has shown the efficacy of measuring the depth of the posterior complex (ligamentum flavum, epidural space, and posterior dura)(More)
Central venous catheterization (CVC) can be difficult, especially with pediatric patients in critical care. Accessing the subclavian vein (SCV) can cause serious complications, including pneumothorax, arterial puncture, and hemothorax. Recently, the ultrasonographic (USG) technique has gained popularity, but its efficiency is not yet confirmed. Subclavian(More)
Glomus tumors are a rare, benign neoplasm and 75% exist in the subungual region. Extradigital glomus tumors are much more difficult to diagnose because of their atypical location and symptoms. Furthermore, if their symptoms are similar to neuropathic pain, the patient can suffer from misdirected treatment due to misdiagnosis. It is essential to perform(More)
BACKGROUND To analyze how lidocaine 40 mg mixed prevents injection pain of propofol affects the onset time of rocuronium, tracheal intubating conditions and intubation related hemodynamic changes. METHODS This study consisted of 70 patients with an American Society of Anesthesiologists (ASA) physical status class 1 or 2 for general anesthesia. All the(More)
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