HDR brachytherapy Dotaz Zobrazit nápovědu
Symptomatology of malignant intrabronchial obstructions has a serious negative effect on the quality of patients' life. Intrabronchial brachytherapy can play an important role in the palliation of these symptoms. Between December 1996 and September 1998 48 patients suffering from malignant intrabronchial obstructions were treated with intraluminal brachytherapy in the Dept. of Radiation Oncology at the University Maternity Hospital in Brno. Gammamed HDR automatical afterloading equipment was used to treat all patients. The first group (23 patients) was treated with a combination of intraluminal brachytherapy and external radiotherapy. The second group (18 patients who had relapsed after previous external radiotherapy) was given intraluminal radiotherapy only. A third group (7 patients) underwent intraluminal brachytherapy only. In the first group 17 patients (77%) showed symptomatic relief with tumor regression on X-ray in 16 patients and with bronchoscopic regression in 19 patients. Seven patients died before October 1998 having survived 1-6 months after the first brachytherapy application. Sixteen patients are still alive (1-14 months). In the second group, 10 patients (56%) reported significant improvement of symptoms, with endoscopic regression in 12 patients. Twelve patients died before October 1998 surviving 1-6 months after the first brachytherapy session, 6 patients are still alive 1-5 months after the first brachytherapy fraction. In the third group, bronchoscopy confirmed a complete disappearance of intrabronchial lesion in two cases with early intrabronchial tumor. Five patients reported symptomatic improvement with endoscopic regression of the tumor. There was only one complication recorded: bronchospasm in one patient. The short follow up and limited number of patients does not allow comment on the late effects and survival, yet. In conclusion, intraluminal brachytherapy is an effective and safe approach for palliation of malignant bronchial obstructions.
- MeSH
- analýza přežití MeSH
- brachyterapie * MeSH
- lidé středního věku MeSH
- lidé MeSH
- nádory průdušek komplikace mortalita radioterapie MeSH
- obstrukce dýchacích cest etiologie mortalita radioterapie MeSH
- paliativní péče * metody MeSH
- stupeň závažnosti nemoci MeSH
- výsledek terapie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Česká republika MeSH
BACKGROUND: Prostate cancer is an illness with a high incidence, especially among older men. The choice of a treatment option among men above 75 years is, however, not clear. Radical prostatectomy in this age group is connected with a relatively high morbidity. A further possibility of curative treatment is radiotherapy which can be administered in the form of external beam or in combination with high dose rate (HDR) brachytherapy. AIM: The aim of our work was to evaluate how HDR brachytherapy is tolerated among men older than 75 and how associated diseases can influence the tolerance to this treatment. Of interest to us were the treatment results and mortality from other diseases. MATERIALS AND METHODS: We analyzed a sample of 20 men above 75 years old (median 77 years) who were undergoing treatment by a combination of external radiotherapy and brachytherapy. Sixteen (80%) of them had prostate cancer with an intermediate and high risk of recurrence, four had low risk prostate cancer. Most patients, 14 (70%), had less than two comorbidities. RESULTS: The median observation period was 57 months. No perioperative complications were recorded. Acute genitourinary toxicity (GU) to a maximum grade of 1-2 manifested in 60% of cases. Acute gastrointestinal toxicity (GIT) was observed only at grade 1 and in 25% of cases. Late GU toxicity occurred in 35% of patients, with only one showing grade 3; late GIT toxicity was recorded at grade 1 only in 3 patients (15%). 70% of the men lived longer than 3 years after treatment, at present, 50% lived more than 5 years. Long-term biochemical remission was achieved in 18 patients (90%). CONCLUSIONS: HDR BRT is possible and well-tolerated in older men above 75 years in good condition and without serious intercurrence. Well-selected older patients with higher-risk tumours and without serious comorbidities undoubtedly benefit from radical treatment when compared with watchful waiting.
- Klíčová slova
- High dose rate (HDR) brachytherapy, Localized prostate cancer, Older man,
- Publikační typ
- časopisecké články MeSH
PURPOSE: First experience and evaluation of relapses in group of patients after surgery with applied adjuvant HDR brachytherapy for recurrent tumor after incomplete excision of basal cell carcinoma of the lower eyelid and inner angle. METHODS: Patients with recurrent basal cell carcinoma of the lower eyelid in year 2010. In 3 male patients with recurrent finding of basal cell after surgery we applied adjuvant HDR 192Ir brachytherapy. The isodose curve chosen to prescribe the dose was 5 mm away from the skin surface. RESULTS: In the year 2010 we applied adjuvant HDR 192Ir brachytherapy in 3 male patients with recurrent basal cell carcinoma. The average age was 58 years (52 to 75 years). From group of 41 patients with non melanotic malignant tumors of the eyelids in 3 patients (7.3 %) with relapse after incomplete excision of the basal cell carcinoma of the lower eyelid we applied after removal of stitches after surgery adjuvant HDR 192Ir brachytherapy. For each patient was made individual orfit mask that bore plastic applicators. Tungsten eye shield applicator was applied to protect the eye globe. Treatment of 10 fractions of 4.5 Gy single dose (5 times weekly) were scheduled within 2 weeks. Patients received outpatient treatment. CONCLUSION: Acute toxicity postradiation erythema of eyelid and skin around relieved by standard symptomatic treatment within a few days after completion of radiation therapy. In 2 year interval after HDR 192Ir brachytherapy we did not record the occurrence of late complications such as corneal ulcers. Our preliminary experience shows excellent early skin tolerance. After 2 years of follow-up at 6 month interval we did not recognize relapse in our group of patients. The proposed technique of HDR 192Ir brachytherapy after surgery should be considered a new clinical treatment in patients with recurrent non melanotic eyelid cancer. Its main advantage lies in the usefulness in all types of basal cell and squamous cell carcinoma and sebaceous carcinoma of the eyelids, without restriction by site, dimension, clinical or histological type, or the patients general status.
- MeSH
- bazocelulární karcinom radioterapie MeSH
- brachyterapie metody MeSH
- lidé středního věku MeSH
- lidé MeSH
- nádory očního víčka radioterapie MeSH
- retrospektivní studie MeSH
- senioři MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
PURPOSE: While anal cancer is a very rare oncological diagnosis representing less than 2% of lower gastrointestinal tract cancers, the incidence has doubled in the past 20 years. Radical radiochemotherapy with sequential or simultaneous boost is now the standard treatment modality. Interstitial HDR brachytherapy is one of the boost application options. Implementation of new radiotherapy techniques has resulted in improved therapeutic outcomes; however, it is still associated with acute and especially late toxicity. Gastrointestinal disorders and sexual dysfunction are the most frequent factors affecting the long-term quality of cured patients' lives. METHODS: A total of 96 patients consecutively treated between 2000 and 2022 with external beam radio-/chemotherapy and an interstitial brachytherapy boost for histologically verified nonmetastatic anal squamous cell carcinoma were evaluated. The median follow-up time was 15.4 years (range 13.4-17.3 years). The primary objective of the study was to assess local control (LC) and quality of life (QoL). The Czech versions of internationally validated EORTC questionnaires were used to evaluate life quality-the basic EORTC QOL-C30 v.3 and the specific QOL-ANL 27 questionnaire. RESULTS: Local control was 85.5% at 5 years, 83.4% at 10 years, 83.4% at 15 years, and 83.4% at 20 years, and there was no dependence on clinical stage. The most common forms of acute toxicity were cutaneous and hematological but were gastrointestinal for late toxicities. In the evaluation of quality of life, 80.5% of patients alive at the time participated. In the EORTC quality of life questionnaire C30 v.3, patients rated the functional scale score as 86.2 points (standard deviation [SD] = 12.6) and the symptom score as 15.5 points (SD = 12.5). The global health score achieved 68.4 points (SD = 23.6). The most common symptoms were fatigue with 25.6 points (SD = 20.2) and diarrhea with 19.0 points (SD = 27.8). In the QOL-ANL 27 questionnaire, symptom scales assessing bowel symptoms were scored 27.5 points (SD = 19) in non-stoma patients and 11.9 points (SD = 17.2) in stoma patients. In the single-item symptom scales, the highest scores were rated for frequency of urination with 26.4 points (SD = 30.8), need to be close to a toilet with 22.4 points (SD = 27.3), and self-cleaning more often with 25.3 points (SD = 31.8). In the functional scales assessing sex life and interest, men and women reported scores of 45.2 (SD = 23) and 45.5 points (SD = 19), respectively. CONCLUSION: Boost with interstitial HDR brachytherapy is an established safe method of anal cancer treatment, with excellent results and limited late toxicity. Functioning scales were rated relatively highly in QoL questionnaires, and the overall global health score was comparable to published data. Gastrointestinal difficulties, fatigue, and sexual dysfunction dominated the symptom scales in our cohort.
- Klíčová slova
- Interstitial brachytherapy, Late toxicity, Long-term outcomes, Radiochemotherapy, Squamous cell carcinoma of the anus,
- Publikační typ
- časopisecké články MeSH
Postresection interstitial brachytherapy is one of the modern methods of radiotherapy the aim of which is to administer a larger radiation dose without greater irradiation of the surrounding sound tissues. The administration of higher radiation doses leads in some solid tumours to better local control of the disease and makes it thus possible to use the organ and its function after preserving surgical operations. Post-resection interstitial brachytherapy belongs in the wider concept to intraoperative radiotherapy the advantage of which is direct control of the irradiated area during surgery. The method of introduction of the radiation source into the applicators in the tumour during surgery (afterloading technique) makes its possible to start radiotherapy after obtaining the definite histological result. Post-resection brachytherapy reduces markedly the total time of irradiation treatment.
- MeSH
- brachyterapie * MeSH
- celková dávka radioterapie MeSH
- kombinovaná terapie MeSH
- lidé MeSH
- nádory prsu radioterapie chirurgie MeSH
- peroperační doba MeSH
- sarkom radioterapie chirurgie MeSH
- segmentální mastektomie MeSH
- Check Tag
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- anglický abstrakt MeSH
- časopisecké články MeSH
- práce podpořená grantem MeSH
BACKGROUND: Low-dose-rate brachytherapy is an effective organ-sparing treatment for patients with early-stage penile cancer. However, only limited data are available on the role of high-dose-rate brachytherapy (HDR-BT) in this clinical setting. METHODS: Between 2002 and 2020, 31 patients with early penile cancer were treated at our center with interstitial HDR BT at a dose of 18 × 3 Gy twice daily. A breast brachytherapy template was used for the fixation of stainless hollow needles. RESULTS: The median follow-up was 117.5 months (range, 5-210). Eight patients (25.8%) developed a recurrence; of these, seven were salvaged by partial amputation. Six patients died of internal comorbidities or a second cancer. The probability of local control at 5 and 10 years was 80.7% (95% CI: 63.7-97.7%) and 68.3% (95% CI: 44.0-92.6%), respectively. Cause-specific survival was 100%. Only one case of radiation-induced necrosis was observed. The probability of penile sparing at 5 and 10 years was 80.6% (95% CI: 63.45-97.7%) and 62.1% (95% CI: 34.8-89.4%), respectively. CONCLUSIONS: These results show that HDR-BT for penile cancer can achieve results comparable to LDR-BT with organ sparing. Despite the relatively large patient cohort-the second largest reported to date in this clinical setting-prospective data from larger samples are needed to confirm the role of HDR-BT in penile cancer.
- Klíčová slova
- HDR brachytherapy, penile carcinoma,
- Publikační typ
- časopisecké články MeSH
AIM: To evaluate the treatment plans of 3D image-guided brachytherapy (BT) and stereotactic robotic radiotherapy with online image guidance - CyberKnife (CK) in patients with locally advanced cervix cancer. METHODS AND MATERIALS: Ten pairs of plans for patients with locally advanced inoperable cervical cancer were created using MR based 3D brachytherapy and stereotaxis CK. The dose that covers 98% of the target volume (HR CTV D98) was taken as a reference and other parameters were compared. RESULTS: Of the ten studied cases, the dose from D100 GTV was comparable for both devices, on average, the BT GTV D90 was 10-20% higher than for CK. The HR CTV D90 was higher for CK with an average difference of 10-20%, but only fifteen percent of HR CTV (the peripheral part) received a higher dose from CK, while 85% of the target volume received higher doses from BT. We found a significant organ-sparing effect of CK compared to brachytherapy (20-30% lower doses in 0.1 cm(3), 1 cm(3), and 2 cm(3)). CONCLUSION: BT remains to be the best method for dose escalation. Due to the significant organ-sparing effect of CK, patients that are not candidates for BT could benefit from stereotaxis more than from classical external beam radiotherapy.
- Klíčová slova
- Brachytherapy, Cervix carcinoma, CyberKnife, Dosimetric study, Stereotactic radiotherapy,
- Publikační typ
- časopisecké články MeSH
PURPOSE: Low-dose-rate brachytherapy (LDR-BT) is a well-established treatment for lip cancer. High-dose-rate (HDR)-BT is a promising alternative to LDR-BT, but data are limited. In this context, we retrospectively evaluated treatment outcomes in a series of patients who underwent HDR-BT for lip carcinoma between 2003 and 2021. MATERIALS AND METHODS: A total of 32 patients were included in this study, with a median age of 73.5 years (range, 61 - 88). The indications for HDR-BT were as follows: primary treatment (n = 17), adjuvant treatment (n = 3), and recurrent disease after surgery (n = 12). The prescribed dose was 18 fractions of 3 Gy administered twice daily. RESULTS: At a median followup of 45 months (range, 12 -232), the 5-year local recurrence-free interval was 96.9% (95% CI: 90.9-100%), the disease-free interval was 85% (95% CI: 70.9-99.1), and 5-year overall survival was 64.7% (95% CI: 44.7-84.8). Eleven patients died, all on age related comorbidities. Acute toxicity manifested as G1 dry desquamation in 6 patients (18.8%), G2 erythema in 10 patients (31.2%) and G3 confluent moist desquamation in 16 patients (50%). Late complications included G1 fibrosis (100% of cases). G1 and G2 depigmentation was observed in 8 (25%) and 6 (18%) patients, G1 telangiectasia occurred in 5 patients (16%). CONCLUSIONS: These data support the use of HDR-BT for lip cancer. The dose and fractionation schedule used in this study (18 fractions x 3 Gy twice daily) seems to be effective and safe.
- Klíčová slova
- Lip cancer, high-dose-rate brachytherapy,
- MeSH
- brachyterapie * metody MeSH
- karcinom * MeSH
- lidé středního věku MeSH
- lidé MeSH
- nádory rtu * radioterapie etiologie MeSH
- retrospektivní studie MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- výsledek terapie MeSH
- Check Tag
- lidé středního věku MeSH
- lidé MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
PURPOSE: To evaluate treatment outcomes and toxicity in patients with stage T1-3N0M0 oral cancer treated with surgery followed by high-dose-rate brachytherapy (HDR-BT). METHODS AND MATERIALS: Retrospective study of 50 patients with stage T1-T3N0 tongue and floor-of-mouth cancer who underwent tumour excision (+ elective neck dissection) followed by postoperative HDR-BT due to the presence of negative prognostic factors (close or positive resection margins, lymphovascular and/or perineural invasion, deep invasion). The plastic tube technique (dose: 18 x 3 Gy b.i.d.) was used. Survival outcomes, toxicity, and prognostic factors were evaluated. RESULTS: At a median follow-up of 81 months (range, 4-121), actuarial 5-year local control (LC), nodal control (NC) and progression-free survival (PFS) rates were 79%, 69%, and 64%. After salvage treatment (surgery + external beam radiotherapy), LC, NC, and PFS increased to 87%, 77%, and 72.3%, respectively. Five-year overall survival and cancer-specific survival (CSS) rates were 73% and 77%. Treatmentrelated toxicity included two cases of mandibular osteoradionecrosis and five cases of small soft tissue necrosis. T stage was significantly correlated with nodal control (p=0.02) and CSS (p=0.04). Tumour grade correlated with DFS (p=0.01). CONCLUSION: Postoperative HDR-BT 18 x 3 Gy b.i.d. seems to be an effective method in patients with T1-3N0M0 oral cancer with negative prognostic factors after tumour resection.
- Klíčová slova
- Brachytherapy, Early oral cancer, Postoperative treatment,
- MeSH
- brachyterapie * metody MeSH
- celková dávka radioterapie * MeSH
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- míra přežití MeSH
- nádory úst * radioterapie patologie chirurgie MeSH
- prognóza MeSH
- retrospektivní studie MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- staging nádorů * MeSH
- výsledek terapie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
PURPOSE: Interstitial low-dose rate brachytherapy (BRT) allows a conservative treatment of T1-T2 penile carcinoma. High-dose rate (HDR) BRT is often considered as a dangerous method for interstitial implants because of higher risk of complications. However, numerous reports suggest that results of HDR-BRT may be comparable to low-dose rate BRT. There are no data available in the literature regarding HDR interstitial BRT for carcinoma of the penis. METHODS AND MATERIALS: Ten patients with early penile carcinoma were treated by interstitial hyperfractionated HDR-BRT at the dose of 18 times 3Gy twice daily between years 2002 and 2009. Breast interstitial BRT template was used for fixation and precise geometry reconstruction of stainless hollow needles. RESULTS: Median followup was 20 months. Our BRT technique and fractionation schedule was well tolerated by all patients. Acute reaction consisted predominantly of penis edema and Grade 2 radiation mucositis that dissolved during 8 weeks after the treatment. We neither observed any postradiation necrosis nor urethral stenosis. The worst late side effects recorded were mild telanagiectasias in the treatment region. At the last followup, all patients were alive without evidence of the tumor and with fully functional organ. CONCLUSIONS: Hyperfractionated interstitial HDR-BRT with 18 times 3 Gy per fraction twice daily is a promising method in selected patients of penile carcinoma and deserves further evaluation in a larger prospective study.
- MeSH
- brachyterapie metody MeSH
- celková dávka radioterapie MeSH
- dospělí MeSH
- frakcionace dávky záření MeSH
- lidé středního věku MeSH
- lidé MeSH
- nádory penisu radioterapie MeSH
- pilotní projekty MeSH
- senioři MeSH
- spinocelulární karcinom radioterapie MeSH
- výsledek terapie MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH