3 results on '"STEREOTACTIC radiotherapy"'
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2. A series of case reports on stereotactic body radiation for the treatment of refractory ventricular tachycardia
- Author
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Tamara Jarm, Krištof Knap, Bor Antolič, Boštjan Berlot, Rihard Hudej, Aljaša Jenko, Ajra Šečerov Ermenc, Jasna But-Hadžić, and Ivica Ratoša
- Subjects
radiotherapy ,stereotactic radiotherapy ,arrhythmias ,ventricular tachycardia ,cardiac radioablation ,case report ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
The development of novel treatment methods is crucial for managing refractory ventricular tachycardia resistant to conventional therapies. Stereotactic arrhythmia radiotherapy holds promising potential for such patients, enabling precise non-invasive ablation of arrhythmogenic substrate with minimal damage to surrounding organs. This approach could be invaluable for patients in whom the target tissue is inaccessible through catheter ablation, frequent implantable cardioverter-defibrillator shocks significantly diminish their quality of life, or for those contraindicated for such treatment options due to poor health status. The target for irradiation is precisely defined through prior imaging diagnostics, ECGs of ventricular tachycardias and invasive or non-invasive electrophysiological mapping of the heart. After radiation treatment planning, irradiation of a single high dose of 25 Gy follows, which is generally well tolerated by the patients. Previous studies have reported good treatment efficacy, with a significant reduction in ventricular tachycardia episode frequency, while causing minimal side effects. We report on the first group of four patients with high-risk refractory ventricular tachycardia treated with stereotactic arrhythmia radiotherapy at the Institute of Oncology Ljubljana. This opens new possibilities for the treatment of this vulnerable patient group within the Slovenian healthcare system and contributes to the evolving field of radiotherapeutic treatment.
- Published
- 2023
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3. Pomen uvedbe stereotaktičnega obsevanja pri raku trebušne slinavke
- Author
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Galunič, Nena and Oblak, Irena
- Subjects
rak trebušne slinavke ,udc:616-07 ,stereotaktična radioterapija ,pancreatic cancer ,radiologic technology ,radioterapija ,stereotactic radiotherapy ,radiološka tehnologija ,magistrska dela ,radiotherapy ,master's theses - Abstract
Uvod: Rak trebušne slinavke je bolezen, ki jo praviloma odkrijemo šele v napredovali obliki. Kakovost življenja bolnikov je zelo okrnjena, saj jih pogosto spremljajo številne težave. Stereotaktična radioterapija je ena izmed možnosti zdravljenja, ki se izvede v zelo kratkem časovnem obdobju. Kot samostojna metoda zdravljenja omogoča odlično lokalno kontrolo bolezni, ki je primerljiva operaciji, v sklopu predoperativnega zdravljenja pa omogoča večjo možnost popolne odstranitve tumorja ter na koncu zmanjša bolnikove težave, ter mu izboljša kvaliteto življenja. Namen: Namen magistrskega dela je predstaviti rak trebušne slinavke in zdravljenje s poudarkom na stereotaktični radioterapiji. Metode dela: Pri izdelavi magistrskega dela smo uporabili deskriptivno metodo in sistematični pregled literature. V namen pisanja uvoda, teoretičnih izhodišč in razprave smo uporabili 78 virov znanstvene literature, za sistematični pregled pa smo od skupno identificiranih 16536 virov, s pomočjo presejalne metode, obdržali 22 virov. Rezultati: Rezultati zajemajo potek izbire dokumentov za sistematični pregled in analizo 22 virov znanstvene literature, ki smo jih analizirali glede na namen, ugotovitve in morebitne zaznamke, ter še natančneje glede na število udeležencev, najpogostejšo skupno dozo, število frakcij, lokalno kontrolo tumorja v 1 letu, razred in delež akutne toksičnosti ter mediano preživetja. Razprava in zaključek: Pri mejno operabilnih bolnikih lahko stereotaktična radioterapija pripomore k zmanjšanju tumorja in zajetega žilja in omogoči popolno kirurško odstranitev bolezni. Pri lokalno napredovalih tumorjih, ki so neresektabilni, pa omogoči visoko stopnjo lokalne kontrole, ki je po uspešnosti primerljiva kirurški resekciji. Stereotaktična radioterapija je primerna pri ponovitvi raka trebušne slinavke po prehodni radikalni resekciji (z resekcijskim robom R0), ter za reiradiacijo po ponovitvi raka trebušne slinavke, ki je bil predhodno zdravljen s konvencionalno radioterapijo, saj ponuja tudi lajšanje težav, ki jih povzroča tumor. Sodeč po sistematičnem pregledu literature, lahko s stereotaktično radioterapijo raka trebušne slinavke dosežemo odlično enoletno lokalno kontrolo tumorja (73 %), ob zadovoljljivo nizki stopnji toksičnosti. Introduction: Pancreatic cancer is a disease that is usually discovered at an advanced stage. The patients' quality of life is greatly reduced, as they are often accompanied by problems. Stereotactic radiotherapy is one of the treatment options that is performed in a very short period of time. As an independent method of treatment, it provides excellent local control of the disease, which is comparable to surgery, and as a part of preoperative treatment, it provides a greater chance of complete removal of the tumor and ultimately reduces the patient's problems and improves his quality of life. Purpose: The purpose of the master's thesis is to present pancreatic cancer and its treatment with an emphasis on stereotactic radiotherapy. Methods: We used a descriptive method and systematic review of literature in the preparation of the master's thesis. For the purpose of writing the introduction, theoretical starting points and discussion, we used 78 sources of scientific literature, for the systematic review, we retained 22 sources, of total of 16536 identified sources, using the screening method. Results: The results include a document selection process for a systematic review and analysis of 22 sources of scientific literature, which we analyzed according to the purpose, findings and possible comments, and more specifically the number of participants, the most common total dose, the number of fractions, local control within 1 year, grade and proportion of acute toxicity and median survival. Discussion and conclusion: In borderline resectable patients, stereotactic radiotherapy can help to shrink the tumor and the involved vessel and enable complete surgical removal of the disease. In locally advanced tumors, that are unresectable, however, it enables a high level of local control, which is comparable in success to surgical resection. Steterotactic radiotherapy is suitable for pancreatic cancer recurrence after transitional radical resection (with an R0 resection margin) and for reirradiation after pancreatic cancer recurrence previously treated with conventional radiotherapy, as it also offers relief of problems, caused by tumour. Judging from a systematic review of literature, stereotactic radiotherpy for pancreatic cancer can achieve excellent one-year local control (73%) with a satisfactorily low level of toxicity.
- Published
- 2023
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