16 research outputs found
System size and centrality dependence of the balance function in A + A collisions at sqrt s NN = 17.2 GeV
Electric charge correlations were studied for p+p, C+C, Si+Si and centrality selected Pb+Pb collisions at sqrt s_NN = 17.2$ GeV with the NA49 large acceptance detector at the CERN-SPS. In particular, long range pseudo-rapidity correlations of oppositely charged particles were measured using the Balance Function method. The width of the Balance Function decreases with increasing system size and centrality of the reactions. This decrease could be related to an increasing delay of hadronization in central Pb+Pb collisions
System size and centrality dependence of the balance function in A+A collisions at sqrt[sNN]=17.2 GeV
Electric charge correlations were studied for p+p, C+C, Si+Si, and centrality selected Pb+Pb collisions at sqrt[sNN]=17.2 GeV with the NA49 large acceptance detector at the CERN SPS. In particular, long-range pseudorapidity correlations of oppositely charged particles were measured using the balance function method. The width of the balance function decreases with increasing system size and centrality of the reactions. This decrease could be related to an increasing delay of hadronization in central Pb+Pb collisions
Gyermekkorban operĂĄlt aortacoarctatiĂłk kĂ©sĆi szövĆdmĂ©nyei Ă©s ellĂĄtĂĄsuk | Late complications and treatment options of aortic coarctation operated in childhood
BevezetĂ©s: Az aortacoarctatio elĆfordulĂĄsa 10 000 Ă©lve szĂŒletett gyermek közĂŒl 4 esetben vĂĄrhatĂł. Isthmicus Ă©s atĂpusos, az aorta bĂĄrmely szakaszĂĄn kialakulĂł vĂĄltozatait ismerjĂŒk. SzĂĄmos sebĂ©szi Ă©s endovascularis megoldĂĄs ismert. MindkĂ©t megoldĂĄs utĂĄn kĂ©sĆi szövĆdmĂ©nyek jelentkezhetnek, mint recoarctatio vagy aneurysmakĂ©pzĆdĂ©s. CĂ©lkitƱzĂ©s: A szerzĆk az aortacoarctatio kĂ©sĆi szövĆdmĂ©nyeivel Ă©s azok megoldĂĄsi lehetĆsĂ©geivel kapcsolatos sajĂĄt tapasztalatok elemzĂ©sĂ©t tƱztĂ©k ki cĂ©lul. MĂłdszer: 32 beteg kĂłrtörtĂ©netĂ©nek retrospektĂv elemzĂ©sĂ©t vĂ©geztĂ©k, akiknĂ©l 1990â2014 között gyermekkorban vĂ©gzett coarctatiomƱtĂ©t szövĆdmĂ©nyĂ©nek ellĂĄtĂĄsĂĄra kerĂŒlt sor 8â42 Ă©vvel a mƱtĂ©t utĂĄn. EredmĂ©nyek: 28 esetben a foltplasztika leszakadĂĄsa okozott ĂĄlaneurysmĂĄt, 2 esetben aortobronchialis fistulĂĄt, 2 betegnĂ©l anastomosisdisruptiĂłt, 2 esetben graftstenosist. A distalis aortaĂv hibrid mƱtĂ©tĂ©t vĂ©geztĂ©k 23 esetben, aortoaorticus isthmicus graft interpositiĂłt 5 esetben, Ășj aortoaorticus bypasst 2 esetben, Ășj subclavioaorticus bypasst, graftfoltplasztikĂĄt Ă©s iliorenalis bypasst 1-1 esetben. Egy esetben hĂĄrĂtottak el intraoperatĂv vĂ©rzĂ©st Ă©s egy betegnĂ©l emphysemĂĄs bullaruptura miatt kĂ©tszer kĂ©nyszerĂŒltek thoracotomiĂĄra. KövetkeztetĂ©sek: A szerzĆk rendkĂvĂŒl fontosnak tartjĂĄk a betegek Ă©venkĂ©nti ellenĆrzĂ©sĂ©t. A kĂ©sĆi elvĂĄltozĂĄsok kezelĂ©sĂ©ben egyre inkĂĄbb a hibrid mƱtĂ©tek kerĂŒltek elĆtĂ©rbe, de egyes sĂșlyos esetekben tovĂĄbbra is nyitott mƱtĂ©t jelentette a megfelelĆ megoldĂĄst. Orv. Hetil., 2014, 155(30), 1189â1195.
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Introduction: The prevalence of congenital aortic coarctation is 4 in 10 000 live birth. Aortic coarctation is typically located in the aortic isthmus, but it may occur at atypical sites. Treatment options include both surgical and endovascular interventions. In patients undergoing surgical or endovascular intervention late complications such as recoarctation or aortic aneurysm may develop. Aim: The aim of the authors was to analyse their own experience in late complication and treatment options of aortic coarctation operated in childhood. Method: Retrospective analysis of data of 32 patients treated between 1980 and 2014 for late complications 8â42 years after surgical treatment of aortic coarctation. Results: In 28 patients aneurysm formation after isthmic patch plasty was found. Two patients had aortobronchial fistula, 2 patients showed anastomosis disruption and 2 patients had graft stenosis. During operation hybrid solution was performed in 23 patients, isthmic aorto-aortic inlay graft interposition in 5 patients, aorto-aortic bypass in 2 patients, subclavio-aortic bypass in 2 patients, graft patch plasty in one patient and ilio-renal bypass in one patient. Complications included severe intraoperative bleeding in one patient and pneumothorax in one patient. No early or late mortality occurred. Conclusions: The authors conclude that life long control is mandatory in order to detect late complications in patients who underwent operation of aortic coarctation in childhood. Orv. Hetil., 2014, 155(30), 1189â1195