TY - JOUR AU - Horváth, Zsolt AU - Szavai, J AU - Bellyei, Szabolcs AU - Farkas, Róbert AU - Mangel, László Csaba AU - Kovács, Péter AU - Sebestyén, Zsolt AU - Kasó, Gábor AU - Gömöri, Éva AU - Horvath, G AU - Ésik, Olga AU - Dóczi, Tamás Péter TI - Recidív sacrumdaganat frakcionált, konformális sztereotaxiás sugárkezelése. Esetismertetés és a módszer első hazai leírása = Fractionated conformal stereotactic irradiation of recurrent sacral tumour. Case report and first description of the method in Hungary JF - MAGYAR ONKOLÓGIA J2 - MAGYAR ONKOLÓGIA VL - 57 PY - 2013 IS - 4 SP - 269 EP - 274 PG - 6 SN - 0025-0244 UR - https://m2.mtmt.hu/api/publication/2486013 ID - 2486013 AB - Non-invasive procedures completing traditional surgical treatment play an increasing role in the management of central nervous system malignancies. Conformal stereotactic irradiation (radiosurgery) has become a routine method in intracranial malignancies. However, application of this modality in tumours of the spinal cord and spinal column is much more difficult to perform. It is because extracranial organs can be only inaccurately fixed, and radio-sensitivity of the spinal cord and risks of radionecrosis with ensuing paraplegia are high. A recurrent sacrum chordoma treated by means of this modality - first reported in Hungary - has been chosen for case presentation as the criteria for radiotherapy such as high dose to target volume, minimal dose to neighbouring structures highly sensitive to radiation are best met in these tumours by means of conformal stereotactic radiotherapy. On the basis of further 13 extracranial cases treated with this method one can conclude that high precision stereotactic conformal radiotherapy offers up-grade to traditional radiotherapy despite the fact that it is a time-consuming procedure. The oncological efficiency, the reduced risks of side effects and the improved quality of life due to this treatment modality compensate duly for the increased labour input. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Hudák, István AU - Stefanits, J AU - Kasó, Gábor AU - Botz, Lajos AU - Dóczi, Tamás Péter TI - A spinális metasztázisok preoperatív embolizációja JF - MAGYAR ONKOLÓGIA J2 - MAGYAR ONKOLÓGIA VL - 57 PY - 2013 IS - 4 SP - 275 EP - 281 PG - 7 SN - 0025-0244 UR - https://m2.mtmt.hu/api/publication/2486012 ID - 2486012 AB - In the management of spinal metastases bringing about neurological symptoms and signs, palliative surgical treatment plays an important role. The goals of surgery are preservation of neurological function especially that of the mobility, pain relief and local tumor control. Many of spinal metastases are hypervascularised, accordingly, preoperative embolisation offers logically improvement in technical realisation of surgery by means of reduction of intraoperative profuse bleeding. To prove this working hypothesis a retrospective analysis was performed. Results of preoperative transarterial embolisation of hypervascularised spinal tumours were worked up from 2000 to 2012. By means of 2 case presentations - to our knowledge, first in the Hungarian literature - the techniques of transarterial spinal embolisation of spinal metastases are described. Indications, complications and effect on intraoperative bleeding events of the embolisation procedure in these oncological cases are presented on the basis of literature search and of our own experience. The case analyses, based mainly on qualitative retrospective data, support the notion that histologically known spinal hypervascularised metastases or those found to be hypervascularised by MRI can be treated effectively by means of preoperative superselective embolisation without major risks of morbidity or mortality. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Schwarcz, Attila AU - Kasó, Gábor AU - Büki, András AU - Dóczi, Tamás Péter TI - Minimálisan invazív, instrumentált gerincsebészeti technika alkalmazása degeneratív vagy traumás eredetű ágyéki betegségekben JF - IDEGGYOGYASZATI SZEMLE / CLINICAL NEUROSCIENCE J2 - IDEGGYOGY SZEMLE VL - 66 PY - 2013 IS - 3-4 SP - 121 EP - 126 PG - 6 SN - 0019-1442 UR - https://m2.mtmt.hu/api/publication/2305498 ID - 2305498 LA - Hungarian DB - MTMT ER - TY - JOUR AU - Kasó, Gábor AU - Horváth, Zsolt AU - Szenohradszky, K AU - Sándor, János AU - Dóczi, Tamás Péter TI - Comparison of CT characteristics of extravertebral cement leakages after vertebroplasty performed by different navigation and injection techniques. JF - ACTA NEUROCHIRURGICA J2 - ACTA NEUROCHIR VL - 150 PY - 2008 SP - 677 EP - 683 PG - 7 SN - 0001-6268 DO - 10.1007/s00701-008-1569-y UR - https://m2.mtmt.hu/api/publication/1212655 ID - 1212655 AB - OBJECTIVE: This study was intended to assess the results of post-operative CT scans in three groups of patients following percutaneous vertebroplasty (VP) using different navigation and injection methods, in an attempt to explain the radiological characteristics of extravertebral cement leakage with relation to needle placement and focused on the ventral epidural accumulation of bone cement. Furthermore, we have suggested a morphological (and functional) classification of the types of cement leakage. METHODS: Between July 2001 and February 2005, 123 percutaneous VP procedures were performed during 75 sessions in 65 patients for treatment of painful osteoporotic vertebral body compression fractures. These included:- Group I: 28 patients, 33 sessions; 50 right sided unilateral VP under fluoroscopic control with central position of the tip of the needle within the bone marrow. Group II: 27 patients, 28 sessions; 50 bilateral VP under fluoroscopic control with separate cement injections into both "hemivertebrae". Group III: 14 patients, 14 sessions; 23 bilateral VP navigated by frameless stereotaxy (neuronavigation). Needles were positioned strictly into the lateral thirds of the vertebral bodies. Leakages were classified as epidural, foraminal, intradiscal, venous paravertebral, compact extravertebral on the post-operative CT scans, and their frequency was compared in relation to the navigation method and the position of the tip of the needle. RESULTS: Group I: extravertebral cement was detected in 23 patients (82%), and in 35 (70%) of the 50 vertebrae treated (ventral epidural: 23 vertebrae = 46%; intradiscal: 12 vertebrae = 24%; venous paravertebral: 8 vertebrae = 16%; intraforaminal: 7 vertebrae = 14%; and compact extravertebral: 3 vertebrae = 6%). Group II: extravertebral cement was detected in 20 patients (74%), and in 38 (76%) of the 50 vertebrae treated (ventral epidural: 12 vertebrae = 24%; intradiscal: 12 vertebrae = 24%; venous paravertebral: 9 vertebrae = 18%; and foraminal: 1 vertebra = 2%). Group III: extravertebral cement could be detected in 10 patients (71%), and in 10 (43%) of the 23 vertebrae treated (ventral epidural: 3 vertebrae = 13%; intradiscal: 8 vertebrae = 34%; venous paravertebral: 4 vertebrae = 17%). CONCLUSION: The incidence of epidural accumulation of bone cement may be concluded to be closely correlated with the position of the tip of the needle. Centrally injected bone cement may easily invade into the basivertebral system, and the material can then be transferred via these veins toward the ventral epidural space, and result in canal compromise and/or compression of the neural elements. The results of statistical analysis (Chi-square test) revealed that injection of bone cement into the lateral third of the vertebral body significantly decreases the extent of ventral epidural leakage. Therefore, a strictly lateral injection is advised, when the tip of the needle is placed into the lateral third of the vertebral body. Frameless stereotaxy navigation improves achievement of accurate needle placement and decreases the frequency of ventral epidural leakage. It is a safe and very accurate method for positioning of the injecting needles. LA - English DB - MTMT ER - TY - JOUR AU - Kasó, Gábor AU - Horváth, Zsolt AU - Kover, F AU - Ezer, Erzsébet AU - Dóczi, Tamás Péter TI - Vertebroplastica, neuronavigáció es kyphoplastica alkalmazása poroticus eredetu multiplex kompressziós csigolyatörések kezelésében JF - IDEGGYOGYASZATI SZEMLE / CLINICAL NEUROSCIENCE J2 - IDEGGYOGY SZEMLE VL - 59 PY - 2006 IS - 7-8 SP - 282 EP - 287 PG - 6 SN - 0019-1442 UR - https://m2.mtmt.hu/api/publication/1066243 ID - 1066243 N1 - Export Date: 27 January 2024 AB - Vertebroplasty is a image-guided therapeutic procedure, consisting of an injection of acrylic cement through a bone biopsy needle into a vertebral body. Main indication for vertebroplasty is painful vertebral body compression fracture due to osteoporosis. The procedure is an efficient mean with high success in pain release and prevention of further collapse of the treated vertebrae; however, the technique does not allow to realign the spine. Kyphoplasty was designed to address the kyphotic deformity. It involves the percutaneous placement of an inflatable bone tamp into a vertebral body (VB). Restoration of VB height and kyphosis correction is achieved by inflation of the tamp with contrast material liquid. After deflation a cavity is created that eases the cement application. The most modern way of guidance in spinal surgery is neuronavigation--the use of frameless stereotaxy. The system reformats patient-specific CT images acquired prior surgery, performs image fusion with intraoperative plain X-ray. Before the operation, the surgeon may create surgical plan and simulate advancement of a virtual instrument along one or more surgical trajectories. During surgery, the system tracks the position of specialized surgical instruments. All three modalities mentioned above have been applied in the treatment of our patient suffered from multiple osteoporotic vertebral body compression fractures. Using kyphoplasty an almost total VB height restoration could be achieved. The pain relief was more than 50% after both operation. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Kasó, Gábor AU - Varjú, Cecília AU - Dóczi, Tamás Péter TI - Multiple vertebral fractures in osteogenesis imperfecta treated by vertebroplasty - Case illustration JF - JOURNAL OF NEUROSURGERY-SPINE J2 - J NEUROSURG-SPINE VL - 1 PY - 2004 IS - 2 SP - 237 EP - 237 PG - 1 SN - 1547-5654 DO - 10.3171/spi.2004.1.2.0237 UR - https://m2.mtmt.hu/api/publication/1496469 ID - 1496469 N1 - CASE ILLUSTRATION LA - English DB - MTMT ER - TY - JOUR AU - Kasó, Gábor AU - Stefanits, J AU - Kover, F AU - Dóczi, Tamás Péter AU - Horvath, G TI - Percutan-transpedicularis akrilát vertebroplastica lumbalis csigolyatest-haemangioma kezelésére--esetismertetés JF - IDEGGYOGYASZATI SZEMLE / CLINICAL NEUROSCIENCE J2 - IDEGGYOGY SZEMLE VL - 56 PY - 2003 IS - 1-2 SP - 41 EP - 46 PG - 6 SN - 0019-1442 UR - https://m2.mtmt.hu/api/publication/1035699 ID - 1035699 AB - The authors present the management of a patient suffering from lumbar vertebral hemangioma. Percutaneous transpedicular acrylate vertebroplasty was performed. This method has widely been used for the treatment of pathological vertebral bodies of different aetiology. A brief review of the literature of previous and current methods is presented. A detailed discussion is given why vertebroplasty was used in contrast to the radiological investigation where the patient's hemangioma proved to be a non-aggressive type. According to the authors' knowledge this is the first Hungarian publication of acrylate vertebroplasty for the treatment of vertebral hemangioma. LA - Hungarian DB - MTMT ER - TY - JOUR AU - Kasó, Gábor AU - Stefanits, J AU - Kover, F AU - Hudvagner, S AU - Dóczi, Tamás Péter TI - Különböző etiológiájú csigolyatest-folyamatok percutan kezelési lehetősége: a vertebroplastica JF - IDEGGYOGYASZATI SZEMLE / CLINICAL NEUROSCIENCE J2 - IDEGGYOGY SZEMLE VL - 55 PY - 2002 IS - 7-8 SP - 244 EP - 252 PG - 9 SN - 0019-1442 UR - https://m2.mtmt.hu/api/publication/1035702 ID - 1035702 AB - Percutaneous vertebroplasty is a radiologically guided invasive technique consisting of the injection of surgical cement into the diseased vertebral body. The procedure results in immediate pain relief and strengthening of the bone due to the polymerization process of the filling material hardening the vertebral body and preventing further collapse. This method is suitable for the treatment of osteoporotic vertebral fractures and of osteolytic vertebral body metastases without neurological signs, in multiple appearance as well. Authors present technical details of the procedure performed by bi-directional fluoroscopy and combined CT-fluoroscopy control as well as short-term experience obtained by treatment of 17 patients. LA - Hungarian DB - MTMT ER - TY - CHAP AU - Kasó, Gábor AU - Dóczi, Tamás Péter ED - European Association, of Neurosurgical Societies TI - Lumbar psedudoradicular pain syndrome. Anatomical studies. Review of literature T2 - 11th European Congress of Neurosurgery PB - Medimond Publishing Company CY - Bologna SN - 9788832309195 PY - 1999 SP - 511 EP - 516 PG - 6 UR - https://m2.mtmt.hu/api/publication/1457053 ID - 1457053 LA - English DB - MTMT ER - TY - JOUR AU - Szapáry, László AU - Pál, Endre AU - Illés, Zsolt László AU - Nador, Gy AU - Kasó, Gábor AU - Czopf, József TI - Spontán cerebelláris vérzések JF - IDEGGYOGYASZATI SZEMLE / CLINICAL NEUROSCIENCE J2 - IDEGGYOGY SZEMLE VL - 51 PY - 1998 IS - 5-6 SP - 163 EP - 169 PG - 7 SN - 0019-1442 UR - https://m2.mtmt.hu/api/publication/1479261 ID - 1479261 LA - Hungarian DB - MTMT ER -