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Iatrogenic Subclavian Artery Perforation Rescued by Operator-Modified Graft Sent
Chih-Hung Lai,Wen-Lieng Lee,Chung-Lin Tsai,Wei-Chun Chang,Chieh-Shou Su 연세대학교의과대학 2017 Yonsei medical journal Vol.58 No.2
Subclavian artery (SCA) perforation is a rare complication while performing SCA intervention. In our present report, a 73-year-old female, with stenosis of the left SCA and situs inversus, presented with exercise-induced left arm weakness. The SCA stenosis was treated with direct stenting with a balloon-expansible Express LD 10×25 mm stent. However, it caused iatrogenic SCA perforationand hemothorax. The perforation was sealed by endovascular repair with operator-modified Endurant II graft stent, which complicated with occlusion of left common carotid artery. And, the carotid artery was rescued by another stent. The graft stent, which was originally designed for abdominal aortic aneurysm, can be modified to suitable length and take as a rescue stent of large vessel with iatrogenic perforation. Due to strong radial force of graft stent, preservation of large side branches should been watched out.
Establishment and Evaluation of GC/MS Methods for Urinalysis of Multiple Phenethylamines
Po-Han Shih,Tsung-Hsien Lin,Shih-Ting Zeng,Shu-Yu Fan,Chi-Zong Zang,Ya-Chun Ko,Ya-Hui Hsu,Shou-Chieh Huang,Mei-Chih Lin,Su-Hsiang Tseng 사단법인 한국질량분석학회 2024 Mass spectrometry letters Vol.15 No.2
Over the past few decades, new psychoactive substances (NPS) have become prevailing. With the widespread emer- gence of NPS, phenethylamines (PEAs) have become one of the groups abused most which PEAs, along with other stimulants, make up the majority of stimulants. When determining the NPS, the methods for screening and confirmation are crucial which assesses the reliability of testimony. In this study, a set of GC/MS methods employing two derivatizing agents for determining 76 target PEAs in urine was established and further applied for authentic sample analysis. Five PEAs (N,N-DMA, PMMA, 4-CA, amphetamine, and methamphetamine) with contents over their LLOQs were detected in thirteen of the twenty tested samples. In order to compare the result from the GC/MS methods with the previously established LC-MS/MS method, Cohen's kappa coef- ficient and McNemar's test were applied for statistical analysis. Perfect agreement between GC/MS and LC-MS/MS techniques for determining target PEAs is demonstrated by the Kappa coefficient for each of the five detected targets.