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Copyright of Turkish Journal of Trauma & Emergency Surgery / Ulusal Travma ve Acil Cerrahi Dergisi is the property of KARE Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective: External jugular vein (EJV) aneurysm is an extremely uncommon clinical condition. We have studied the clinical profile and need for surgery in this present seven case series of primary external jugular vein aneurysms. Method: Over the past three years, we have diagnosed and managed aneurysms of external jugular vein in seven patients, who presented with swelling in the posterior triangle of the neck. Venous duplex was obtained in all the patients, followed by computed tomography (CT) in three patients and one patient reported with magnetic resonance (MR) venography from another hospital. Three patients had symptoms ranging from mild intermittent discomfort to moderate pain underwent excision of aneurysm after ligation of both ends of EJV. Four patients had swelling on the lateral side of the neck due to EJV aneurysm, with no other associated symptoms. They were kept on six monthly follow-ups. Result: We operated three patients, as they were symptomatic, of which only two had thrombus in the aneurysmal sac. All three symptomatic patients had aneurysm of size >5 cm. Post-surgery and on subsequent follow-ups they were asymptomatic. The four asymptomatic patients kept on conservative management did not develop any thrombosis of aneurysm sac in follow up. Conclusion: Surgical excision is indicated for symptomatic patients with EJV aneurysm, preferably for size > 5 cm because of their higher association with thrombosis or symptoms. Asymptomatic patients can be managed non-operatively with regular surveillance by clinical examination and venous duplex or can be treated if patients insist due to cosmetic reasons. [ABSTRACT FROM AUTHOR]

The role of emergency presentation and revascularization in aneurysms of the peripancreatic arteries secondary to celiac trunk or superior mesenteric artery occlusion. He underwent supracoeliac aorta to common hepatic artery bypass with coated polyester 7 mm graft successfully after ligating the aneurysm under proximal control of the SMA (Fig. [Extracted from the article]

In the present study, new substituted isoxazolines (4a-c) have been synthesized via the simple and efficient reaction of flavanones (3a-c) with the hydroxyl amine hydrochloride in ethanol. The structures of the compounds were elucidated by elemental and spectral (IR, 1HNMR, and MS) analysis. The reactions are easy to conduct, under mild conditions, and form coumarin substituted flavanones and isoxazolines in moderate to excellent yields. [ABSTRACT FROM AUTHOR]

The Density Functional Theory (DFT) calculations have been performed to investigate the thermodynamical, electronic structure, spectroscopic properties and solvent effect on electronic absorption spectra of fluorine and chlorine substituted coumarin isoxazolines (Ia) and (Ib) by using PBE1PBE functional with 6-311g basis set. The results revealed that the electronegativity of halogen group affect the bond length, atomic charges, excited wavelength, molecular orbital energy gap, vibration frequency, thermo-chemical parameters and stability of compounds. [ABSTRACT FROM AUTHOR]