tratamento De Fístula Arteriovenosa Adquirida Com Repercussões Hemodinâmicas Graves: Desafio

A 34-year-old female patient with severe heart failure and pulmonary hypertension was diagnosed late with a high-output acquired arteriovenous fistula between the right common iliac vein and artery. The most probable cause was an iatrogenic vascular injury inflicted during a prior laparoscopic cholecystectomy. Treatment was conducted by placement of an endoprosthesis in the common iliac artery, achieving total exclusion of the fistula and complete remission of symptoms. Considering the options available for treating this type of lesion, endovascular techniques are becoming ever more effective and are now the option of first-choice for management of this pathology.A 34-year-old female patient with severe heart failure and pulmonary hypertension was diagnosed late with a high-output acquired arteriovenous fistula between the right common iliac vein and artery. The most probable cause was an iatrogenic vascular injur1313438sem informaçãosem informaçãoPinto, D.M., Bez, L.G., Dias, J.O., Lopes, C.S., Mandi, A., Iliac aneurysm associated with arteriovenous fistula (2007) J Vasc Bras., 6 (3), pp. 299-302Davis, P., Gloviczki, P., Cherry, K., Aorto-caval and ilio-iliac arteriovenous fistulae (1998) Am J Surg., 176, pp. 115-118. , http://dx.doi.org/10.1016/S0002-9610(98)00166-4Queiroz, A.B., Mulatti, G.C., Aun, R., Valentim, L.A., Puech-Leão, P., Endovascular repair of a traumatic arteriovenous fistula involving the iliac bifurcation using an iliac branch device (2012) J Vasc Surg., 55 (5), pp. 1474-1476. , http://dx.doi.org/10.1016/j.jvs.2011.12.006, May, Epub 2012 Jan 24Kuehnl, A., Zimmermann, A., Pongratz, J., Eckstein, H.H., Young girl presenting with heart failure 5 years after laparoscopic appendectomy. Case report of an ilio-iliac AV fistula (2010) Eur J Vasc Endovasc Surg., 40 (1), pp. 107-109. , http://dx.doi.org/10.1016/j.ejvs.2010.02.013, JulSexton, J.A., Ricotta, J.J., Endovascular approaches to arteriovenous fistula (2011) Adv Surg., 45, pp. 83-100. , http://dx.doi.org/10.1016/j.yasu.2011.03.011Weng, C.F., Wei, J., Lee, Y.T., High-output Heart Failure Resulting from an Obscure Traumatic Arteriovenous Fistula (2008) J Chin Med Assoc, 71 (8), pp. 428-430. , http://dx.doi.org/10.1016/S1726-4901(08)70096-0Wang, E.A., Lee, M.H., Wang, M.C., Lee, H.Y., Iatrogenic left iliac-caval fistula: Imaging and endovascular treatment (2004) AJR Am J Roentgenol., 183 (4), pp. 1032-1034. , http://dx.doi.org/10.2214/ajr.183.4.1831032, OctChaudry, M., Flinn, W.R., Kim, K., Neschis, D.G., Traumatic arteriovenous fistula 52 years after injury (2010) J Vasc Surg., 51 (5), pp. 1265-1267. , http://dx.doi.org/10.1016/j.jvs.2009.11.080, May, Epub 2010 Mar 29Brewster, D., Cambria, R., Moncure, A., Aortocaval and iliac arteriovenous fistulas: Recognition and treatment (1991) J Vasc Surg, 13, pp. 253-264. , http://dx.doi.org/10.1016/0741-5214(91)90218-J, discussion 264-5Cronin, B., Kane, J., Lee, W., Shriki, J., Weaver, F.A., Repair of a high-flow iliac arteriovenous fistula using a thoracic endograft (2009) J Vasc Surg., 49 (3), pp. 767-770. , http://dx.doi.org/10.1016/j.jvs.2008.10.062, Mar, Epub 2009 Jan 14Yared, K., Baggish, A.L., Wood, M.J., High-output heart failure resulting from a remote traumatic arteriovenous fistula (2009) Can J Cardiol., 25 (4). , http://dx.doi.org/10.1016/S0828-282X(09)70083-2, AprParodi, J., Barone, H., Transluminal treatment of abdominal aortic aneurysms and peripheral arteriovenous fistulas (1992) Proceedings of the 19th Annual Montefiore Medical Center Symposium on Current Critical Problems and New Techniques in Vascular Surgery, , In: 1992New York. New YorkSanchez, L., Veith, F., Ohki, T., Early experience with the Corvita endoluminal graft for the treatment of arterial injuries (1999) Ann Vasc Surg, 13, pp. 151-157. , http://dx.doi.org/10.1007/s100169900233Marin, M., Veith, F., Panetta, T., Transluminally placed endovascular stented graft repair for arterial trauma (1994) J Vasc Surg, 20, pp. 466-472. , http://dx.doi.org/10.1016/0741-5214(94)90147-3McCarter, D., Johnstone, R., McInnes, G., Reid, D., Pollock, J., Reid, A., Iliacarteriovenous fistula following lumbar disc surgery treated by percutaneousendoluminal stent grafting (1996) Br J Surg, 83, pp. 796-797. , http://dx.doi.org/10.1002/bjs.1800830622Zajko, A., Little, A., Steed, D., Curtiss, E., Endovascular stent-graft repair of common iliac artery-to-inferior vena cava fistula (1995) J Vasc Intervent Radiol, 6, pp. 803-806. , http://dx.doi.org/10.1016/S1051-0443(95)71190-3McLaughlin, V.V., McGoon, M.D., Pulmonary arterial hypertension (2006) Circulation, 114 (13), pp. 1417-1431. , http://dx.doi.org/10.1161/CIRCULATIONAHA.104.50354

Status of 174 Mhz RF system for BEP

The new RF system for the BEP storage ring (which is an injector of VEPP-2000 accelerating complex) will increase the particles energy in the BEP from 0.9 to 1 GeV. RF system operates at a frequency of 174 MHz and consists of an accelerating cavity, RF power generator and control system.Новая ВЧ-система накопителя БЭП (являющегося инжектором комплекса ВЭПП-2000) позволит увеличить энергию частиц в БЭП от 0,9 до 1 ГэВ. ВЧ-система работает на частоте 174 МГц и состоит из ускоряющего резонатора, ВЧ-генератора мощности и системы управления.Нова ВЧ-система накопичувача БЕП (що є інжектором комплексу ВЕПП-2000) дозволить збільшити енергію частинок БЕП від 0,9 до 1 ГеВ. ВЧ-система працює на частоті 174 МГц і складається з прискорюючого резонатора, ВЧ-генератора потужності і системи управління

RF system of the race-track microtron – recuperator for high power free electron laser

A brief description of the RF system of 100 MeV race-track microtron-recuperator being built in Novosibirsk for the Free Electron Laser project at Siberian center of Photochemistry research is presented. The frequency of RF system is 180.4 MHz. The RF system consists of 2 parts: the RF system of 2 MeV injector and the RF system of microtron. The injector RF system includes 3 RF cavities - one buncher cavity and two accelerating cavities. RF cavities are driven by a 2.5 kW amplifier and two high power single-tube 130 kW RF amplifiers respectively. The RF system of microtron includes 16 RF cavities operating at a gap voltage of 850kV each. Two 4-tubes power amplifiers supply the RF power of 600 kW each to the cavities via distribution feeders. In the high power amplifier stages the tetrodes GU-101A are used. The control system controls the amplitude and phase of RF voltage in the cavities and provides signals for synchronization of the electron gun. The results of the operation of the injector RF system and status of large RF system for the microtron are discussed

First experimental results obtained using the highpower free electron laser at the siberian center for photochemical research

The first lasing near the wavelength of 140 µm was achieved in April 2003 using a high-power free electron laser (FEL) constructed at the Siberian Center for Photochemical Research. In this paper we briefly describe the design of the FEL driven by an accelerator–recuperator. Characteristics of the electron beam and terahertz laser radiation, obtained in the first experiments, are also presented in the paper.У Сибірському центрі фотохімічних досліджень навесні 2003 року отримана генерація випромінювання з довжиною хвилі 140 мкм на потужному лазері на вільних електронах (ЛВЕ). У роботі коротко описана конструкція ЛВЕ на базі прискорювача рекуператора і представлені результати вимірювання деяких параметрів електронного пучка і терагерцового випромінювання.В Сибирском центре фотохимических исследований весной 2003 года получена генерация излучения с длиной волны 140 мкм на мощном лазере на свободных электронах (ЛСЭ). В работе кратко описана конструкция ЛСЭ на базе ускорителя рекуператора и представлены результаты измерения некоторых параметров электронного пучка и терагерцового излучения