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Published in DiRROS: 05.07.2024; Views: 98; Downloads: 53
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Abstract: The aim of the study was to characterize ultrasonographic (US) findings during and after electrochemotherapy of liver tumors to determine the actual ablation zone and to verify the coverage of the treated tumor with a sufficiently strong electric field for effective electrochemotherapy. Patients and methods. US findings from two representative patients that describe immediate and delayed tumor changes after electrochemotherapy of colorectal liver metastases are presented. Results. The US findings were interrelated with magnetic resonance imaging (MRI). Electrochemotherapy-treated tumors were exposed to electric pulses based on computational treatment planning. The US findings indicate immediate appearance of hyperechogenic microbubbles along the electrode tracks. Within minutes, the tumors became evenly hyperechogenic, and simultaneously, an oedematous rim was formed presenting as a hypoechogenic formation which persisted for several hours after treatment. The US findings overlapped with computed electric field distribution in the treated tissue, indicating adequate coverage of tumors with sufficiently strong electric field, which may predict an effective treatment outcome. Conclusions. US provides a tool for assessment of appropriate electrode insertion for intraoperative electrochemotherapy of liver tumors and assessment of the appropriate coverage of a tumor with a sufficiently strong electric field and can serve as predictor of the response of tumors.
Keywords: elctrochemotherapy, ultrasound, treatment plan, liver
Published in DiRROS: 11.06.2024; Views: 84; Downloads: 38
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Abstract: Thrombotic events, arterial or venous in origin, still remain a source of substantial morbidity and mortality in cancer patients. The propensity for their development in oncology patients is partially a consequence of the disease itself and partially a result of our attempts to treat it. One of the rarest and deadliest thromboembolic complications is arterial mesenteric ischemia. The high mortality rate is caused by its rarity and by its non-specific clinical presentation, both of which make early diagnosis and treatment difficult. Hence, most diagnoses and treatments occur late in the course of the disease. The issue survivors of arterial mesenteric ischemia may face is short bowel syndrome, which has become a chronic condition after the introduction of parenteral nutrition at home. We present a 73-year-old rectal cancer patient who developed acute arterial mesenteric thrombosis at the beginning of the pre-operative radiochemotherapy. Almost the entire length of his small intestine, except for the proximal 50 cm of it, and the ascending colon had to be resected. After multiorgan failure his condition improved, and he was able to successfully complete radical treatment (preoperative radiotherapy and surgery) for the rectal carcinoma, despite developing short bowel syndrome (SBS) and being dependent upon home-based parenteral nutrition to fully cover his nutritional needs. Mesenteric ischemia and resultant short bowel syndrome are not absolute contraindications for radical oncological treatment since such patients can still achieve long-term remission.
Keywords: acute mesenteric ischemia, capecitabine, multiorgan failure, rectal cancer, short bowel syndrome
Published in DiRROS: 23.04.2024; Views: 210; Downloads: 56
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Abstract: Zdravljenje lokalno napredovalega in recidivnega raka danke je zahtevno. Z uvedbo boljše diagnostike, novih načinov predoperativnega zdravljenja na eni strani in z bolj agresivno kirurško terapijo na drugi strani dosegamo več R0 resekcij, ki edine omogočajo potencialno ozdravitev. Še vedno pa so ti posegi za bolnike neredko mutilantni. Z ustreznimi tehnikami rekonstrukcije dosegamo večjo možnost resektabilnosti, hkrati pa so posledice kirurškega zdravljenja manjše. Pomembna pri vrnitvi bolnika v normalno življenje sta prehranska podpora in rehabilitacija. Tako kompleksno zdravljenje je možno samo v multidisciplinarnem timu.
Keywords: rak danke, kirurško zdravljenje, rak prebavil
Published in DiRROS: 13.01.2023; Views: 690; Downloads: 144
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Keywords: rak požiralnika, rak ezofagogastritičnega stika, smernice, zdravljenje
Published in DiRROS: 07.09.2022; Views: 910; Downloads: 337
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