Hungarian Radiology

[Balloon dilatation and metallic stent placement in inferior vena cava stenosis complicating liver transplantation]

DOROS Attila1, NÉMETH Andrea1, HARTMANN Erika1, DEÁK Pál Ákos1, FEHÉRVÁRI Imre1, TÓTH Szabolcs1, NEMES Balázs1, KÓBORI László1

JULY 15, 2009

Hungarian Radiology - 2009;83(02)

[INTRODUCTION - The only successful therapy for end stage liver cirrhosis is liver transplantation. The anastomotic stenosis of the inferior vena cava is rare but serious complication. In these cases surgery is a high risk procedure; therefore interventional radiological methods are recommended. PATIENTS AND METHODS - Eleven patients developed 12 caval stenosis from 365 liver transplant recipients in Budapest. One of the patients had caval stenosis again after retransplantation. Dilatation was performed with 10- 25 mm large balloon catheters in 6 cases and 6 metallic stents (12-24 mm in diameter) were implanted. All the procedures were performed via the common femoral vein. RESULTS - The success of the intervention was measured by the morphological results, clinical signs and by the changes of superior-inferior vena cava pressure gradients. Before the intervention 14 Hgmm mean pressure gradient was measured, which decreased to 8 Hgmm post intervention. Eleven patients developed renal insufficiency before treatment; this was reversible in 6 cases. One patient had impaired renal function before treatment, and later on again, after retransplantation. Three of 4 patients with renal insufficiency died in the post operative period. One stent migration was noticed prompting surgical fixation of the stent. CONCLUSION - Inferior vena cava stenosis represents a serious complication after liver transplantation, causing ascites, hydrothorax and venous congestion in the kidneys and the liver. In the critical post operative period surgery is not recommended, risking the viability of the liver and the life of the patient. Interventional radiology with balloon dilatation and stent implantation is the method of choice in these cases, primary stenting with large self expanding metallic stents is necessary in elastic stenosis caused by torsion of the anastomosis.]


  1. Semmelweis Egyetem, Budapest, Transzplantációs és Sebészeti Klinika



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Hungarian Radiology

[Beginning of a new section: Pathology without borders - Integrative medical papers]


Hungarian Radiology

[Can magnetic resonance imaging play a role in planning the method of delivery after Caesarean section?]


[INTRODUCTION - The number of Caesarean sections has been dramatically increasing worldwide, and also in Hungary in the last decade. In case of pregnancy following a preliminary Caesarean section it is always questioned if repeated Caesarean section or vaginal birth is required. The authors try to draw a conclusion from the thickness and the structure of the uterinal scar. The aim of the current study is to assess the additional role of uterinal MR examination undertaken between two births. PATIENTS AND METHODS - During our retrospective preliminary study T2 weighted sagittal images of uterinal MR examinations of 13 female patients were analysed. The presence of scar line was evaluated for thickness (millimetres, mm). This measurement was compared with the surgical report following consequent Caesarean section. Thus, a correlation was made between the surgical scar found at the repeated Caesarean section and the structure of the uterine scar seen by MR examination (between two births) which could play a role in the indication of the next birth. RESULTS - Three of our 13 patients gave birth via vagina (VBAC), and 10 via repeated Caesarean sections. According to the descriptions of the surgical scar the scars thinned out in six cases, whereas they made thickness in four. According to the appearance of the place of incision the scar was homogeneous and hypointens in nine cases, and inhomogeneous but basically hypointense in one case. According to the description of surgery in the MR examination the thinned out scar was thinner than 6 mm in 4 cases, and thicker than 6 mm in two cases. According to the description of surgery in the MR examination the nonthinned out scar was thinner than 6 mm in three cases, and thicker than 6 mm in one case. In two patients of three who gave birth via vagina the scar was thicker than 6 mm in the MR examination, and thinner than 6 mm in one case, the MR appearance of the scar was homogeneous and hypointens in two cases and complied with the original zonal anatomy in one case. CONCLUSION - In case repeated Caesarean section is not necessary from the aspect of the foetus or the mother, uterinal MR examination is of an additional significance in the complex indication of birth following a previous Caesarean section. The thickness, structure and signal intensity of the uterinal scar may provide a useful additional information.]

Hungarian Radiology

[Mediastinal hamartoma in childhood]

KISS Regina Judit, VERES Lukács

[INTRODUCTION - Mediastinal hamartoma is a rare entity in children. Exact diagnosis can be given virtually only after surgical exploration, which is also the ultimate choice of treatment due to its benign nature. CASE REPORT - A 4-year-old boy with recurrent upper respiratory tract infections and pneumonias, had a huge tumour mass in his left upper lung lobe, which infiltrated the mediastinum. After a negative bronchoscopy and an unsuccessful CT-guided biopsy, surgery was performed. The final histological result revealed the mass to be mediastinal hamartoma. CONCLUSION - Mediastinal masses are relatively common in childhood, but mediastinal hamartoma is rare, and its preoperative diagnosis appears to be difficult.]

Hungarian Radiology

[Monteggia fracture]


[The Monteggia fracture is a very challenging injury, not only for the treating surgeon but also for the radiologist. The correct and timely identification of the injury is vital for a favourable outcome. Following is an overview of the Monteggia fracture.]

Hungarian Radiology

[Galeazzi fracture in childhood]


[The Galeazzi fracture dislocation is a fracture of the distal radius with dislocation of the distal radio-ulnar joint. In 1934 Galeazzi an Italian surgeon published an article with his experiences of this injury pattern. Although the Galeazzi fracture - dislocation is a well known injury with characteristic clinical and X-ray signs we couldn’t find any article in the literature about the differentiation of different types of this injury. Our experiences showed that there are three characteristic types seeing on the plan film: 1. extension type: radial shaft fracture with dorsal angle and ulnar dislocation in volar direction; 2. flexion type: radial shaft fracture with volar angle and ulnar dislocation of dorsal in direction; 3. abduction type: radial shaft fracture with radial angle and ulnar dislocation in ulnar direction. The three types were published in a Hungarian textbook in 1987.]

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Hungarian Radiology

[The radiohygienic aspects of the interventional radiology]

PELLET Sándor, GICZI Ferenc, GÁSPÁRDY Géza, TEMESI Alfréda

[Interventional radiology is a relatively new and very rapidly developing cost-effective branch of radiology. Its aim to help or to replace surgical procedures and interventions in many cases are life saving, which are performed by imaging modality control (most commonly angiography or fluoroscopy). During interventional radiological procedures the exposure of staff and patients is usually higher, than in conventional radiography or fluoroscopy. Deterministic effects may also occur. The dosimetry can be carried out by film dosimetry, thermoluminescent dosimetry, DAP meters, semiconductor detectors and personal electronic dosimeter. The basis of reduction of radiation exposure is the radiation protection training. An important rule is that reduction of patient exposure is connected with reduction of staff exposure. With the use of appropriate tools and training the most injuries are avoidable.]

Lege Artis Medicinae

[The role of the family physician in the preparation for liver transplantation in Wilson’s disease]

FARKAS Anett, KALABAY László, MÁTHÉ Zoltán, MÁRKUS Bernadett, SZALAY Ferenc, VÖRÖS Krisztián, TORZSA Péter

[Wilson’s disease is an autosomal recessive disease with toxic copper accumulation caused by the mutation of the ATP7B gene in chromosome 13. The estimated prevalence of the disease is 2-3 / 100000. Early diagnosis is important because the treatment may stop the progression and could result regression or it can prevent the clinical manifestation of the disease. In our case study we describe how difficult could be to diagnose the disease, the role of the family physician in the preparation for liver transplantation and in the follow-up care. This case is an example demonstrating that Wilson's disease is often diagnosed only years after the appearance of the first symptom. We review the most important literature data on Wilson’s disease. ]

Hungarian Radiology

[Self-expanding metallic stents in intrahepatic biliary strictures after liver transplantation]

DOROS Attila, NÉMETH Andrea, HARTMANN Erika, DEÁK Pál Ákos, JUHAROSI Gyöngyi, LÉNÁRD Zsuzsa, KOZMA Veronika, GÖRÖG Dénes, GERLEI Zsuzsa, FEHÉRVÁRI Imre, NEMES Balázs, KÓBORI László

[INTRODUCTION - Bile duct complications remain a key problem of liver transplantation. Two main types are recognized: anastomotic and intrahepatic. In cases of anastomotic strictures good results can be achieved with surgery or minimally invasive therapy. Intrahepatic stenosis usually requires retransplantation. In this report the results of intrahepatic metallic stent placements are analyzed. PATIENTS AND METHODS - Since 1995, 20 patients with intrahepatic bile strictures were referred for percutaneous treatment. Of 34 percutaneous transhepatic cholangiography, 33 successful drainages were performed and 58 balloon dilatations were employed to overcome. In 13 patients, 20 metallic stents were implanted. One bleeding complication was successfully treated with selective embolization. RESULTS - The average follow up time was 35 months. 14 patients have no symptoms, 12 of them after metallic stent placements and 4 of them after retransplantation (2 patients had metallic stents at retransplantation). One patient has metallic stent and an external drain waiting for retransplantation. Three patients died after 7 retransplantations. Two patients died on the waiting list, one with and one without external drain. There were no deaths after successful metallic stent placement. CONCLUSION - After meticulous preparations metallic stent placement is safe and effective in intrahepatic biliary stenosis after liver transplantation. The patients can be stabilized till the retransplantation, or it can even be avoided.]

Hungarian Radiology

[Prevention of thrombotic complications in vascular interventional procedures]


[Procedures of vascular interventional radiology is linked inevitably a certain amount of risk of thrombotic complications, like intimal and vascular wall injuries, increased thrombotic risk caused by the catheter itself, etc. The first approach of thrombotic prevention was achieved by acetyl salicylic acid in case of peripheral arteries, this treatment was later replaced by long-term anticoagulation. Opportunities were provided by the recognition of risky blood characteristics in relation to thrombotic complications. Consequently, a well performed preparation and premedication of the patients could reasonably decrease the risk. The most important steps are the cessation of smoking, normalization of hemoconcentration and antithrombotic premedication. Better understanding of the nature of atherosclerotic progression led to the introduction of long-term fibrinolytic inhibition therapy. In the past decades beside patients with vascular stenosis, the oncology patients are also treated by different radiological interventions, like intraarterial chemotherapy and chemoembolization. The use of several-day-long infusion represent a new challenge, the treated vessels, the lumen and the surface of the catheter must be prevented of thrombosis. For this purpose a few suitable drugs can be applied with mild anticoagulant and fibrinolytic stimulating effect. We use the sodium pentosan polysulphate.]

Hungarian Radiology

[The possibilities of invasive radiological therapy of deep venous thrombosis and in vitro experimental examination of therapeutic factors affecting the treatment]


[INTRODUCTION - The first part of this paper is an overview on the possibilities of invasive radiology treatment of deep venous thrombosis. In the next part an in vitro experiment is described demonstrating the basics of mechanical and pharmaco-mechanical catheters applied in deep venous thrombosis. MATERIALS AND METHODS - The in vitro haemodinamic model of the iliocaval veins contained a thermostat and an engine responsable for pulsing circulation according to the venous system. We tested the chance of driftage of thrombus in different age according to the state of the collateral system. Thrombectomy was made by mechanical (Simpson-catheter) and pharmaco-mechanical (Pulsespray catheter) ways. The weight of the non-drifted thrombi was measured. RESULTS - All the 16 thrombus were flown while collateral system was closed and none of them were flown while the collateral system was open but the rate of their solubility was different. The efficacy of the thrombus-removal by Simpson catheter was better than by Pulse-spray catheter and fresh thrombus-fragments were more soluble than older ones. CONCLUSION - By this in vitro experiment we opened the way for using mechanical and pharmaco-mechanical catheters in deep venous thrombosis.]