Related Experiment Video
Updated: Jan 22, 2026

11:38
Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy
Published on: July 3, 2014
47.4K
Effective delivery of palliative radiotherapy: A prospective study
A Clément-Zhao1, M Luu2, J-E Bibault3
1Department of radiotherapy, hôpital européen Georges-Pompidou, 20, rue Leblanc, 75015 Paris, France; Department of radiotherapy, institut Curie, 35 rue Dailly, 92210 Saint-Cloud, France.
Summary
Palliative radiotherapy was effectively delivered in most cases, achieving symptom palliation for 68.8% of patients. This study highlights radiation therapy
Area of Science:
- Oncology
- Radiation Oncology
- Palliative Care
Background:
- Palliative radiotherapy aims to alleviate patient discomfort.
- Treatment effectiveness can be limited by rapid deterioration of patient condition.
- Assessing the actual delivery of palliative radiotherapy is crucial.
Purpose of the Study:
- To evaluate the effective delivery of palliative radiotherapy.
- To analyze treatment adherence to initial prescriptions (dose, time, fractionation).
- To assess clinical benefit, treatment interruptions, and patient outcomes.
Main Methods:
- Prospective monocentric study including patients receiving palliative radiotherapy.
- Data collected from December 2015 to February 2016.
- Primary endpoint: effective radiotherapy delivery; Secondary endpoints: treatment breaks, clinical benefit, mortality, palliative care unit admission.
Main Results:
- 64 treatments were analyzed in 59 patients; bone and brain were primary sites.
- Palliative radiotherapy was achieved in 89% of cases, with symptom palliation in 68.8%.
- Treatment interruptions occurred in 9.4%, mainly due to worsening performance status.
Conclusions:
- Palliative radiotherapy was completed as planned in 79.9% of cases, yielding clinical benefit for 68.8%.
- Radiation therapy is a valuable palliative treatment option for end-of-life care.
- Further research should focus on optimizing delivery and patient selection.
More Related Videos
Related Concept Videos
Buffer Effectiveness
54.9K
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
The buffer capacity is the amount of acid or base that can be added to a given volume...
The buffer capacity is the amount of acid or base that can be added to a given volume...
54.9K
Framing Effects
7.9K
Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
7.9K
Biological Effects of Radiation
17.7K
All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they...
17.7K
Self-Awareness and Its Effects
289
Self-awareness is a psychological state in which the individual becomes the focal point of their attention. This inward focus transforms the self into an object of contemplation and assessment, influencing how individuals perceive their actions and their alignment with personal and societal standards.Triggers and Contexts for Self-AwarenessSelf-awareness can be activated by external stimuli that make individuals visually or audibly aware of themselves, such as mirrors, cameras, or recordings.
289
Effects of feedback
1.0K
Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
1.0K
Effects of Creep
416
Creep in concrete, the gradual deformation under prolonged stress, significantly impacts the integrity of structures. For reinforced concrete beams, it can be a vital design consideration, as it increases deflection, sometimes necessitating additional design measures. In columns, especially slender ones under eccentric loads, creep can cause buckling, compromising their stability. However, creep can be beneficial in indeterminate structures by mitigating stresses that arise from shrinkage,...
416

