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Pseudoaneurysm of the splenic artery
Radu Dumitru,Ana Carbunaru,Mugur Grasu,Mihai Toma,Mihnea Ionescu,Traian Dumitrascu 한국간담췌외과학회 2016 Annals of hepato-biliary-pancreatic surgery Vol.20 No.4
Delayed post-pancreatectomy hemorrhage (PPH) is a relatively uncommon, but feared, complication after pancreaticoduodenectomy (PD). A splenic artery pseudoaneurysm is a rare cause of delayed PPH after a PD. This paper describes the case of a patient with PD used to treat a distal bile duct cholangiocarcinoma complicated with a clinically significant pancreatic fistula and secondary intraabdominal abscess. Computed tomography-guided drainage of the abscess was performed with an apparently favourable outcome; the patient was discharged on postoperative day (POD) 35 and the abdominal drains were removed on POD 50. On POD 80, the patient was readmitted for a severe digestive hemorrhage. Computed tomography revealed a pseudoaneurysm of the splenic artery with a subsequent hematoma formation. Immediately, an angiography was performed and coils were successfully mounted. This case illustrates the rare possibility of the development of a splenic artery pseudoaneurysm with severe delayed PPH after PD complicated with a clinically significant pancreatic fistula, even after the patient was discharged from the hospital. An interventional radiology approach represents the first treatment option in hemodynamically stable patients with high success rates.
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TEM INVESTIGATIONS ON CNT-ADDED HEXAGONAL WO3 FILMS FOR SENSING APPLICATIONS
KATARÍNA SEDLÁCKOVÁ,RADU IONESCU,CSABA BALÁZSI 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2008 NANO Vol.3 No.4
In this work, nanocrystalline hexagonal tungsten oxide was prepared by acidic precipitation from sodium tungstate solution. TEM studies of nanopowders showed that the average size of the hexagonal nanoparticles is 30–50 nm. Novel nanocomposites were prepared by embedding a low amount of gold-decorated carbon nanotubes into the hex-WO3 matrix. The addition of MWCNTs lowered the temperature range of sensitivity of hex-WO3 nanocomposites to NO2 hazardous gas. The sensitivity of hex-WO3 with Au-decorated MWCNTs to NO2 is at the temperature range between 25°C and 250°C.
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