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Lung CA cards
Lung cancer, radiation therapy, treatment
Question | Answer |
---|---|
What is the most effective single-agent drug used for lung cancer patients? (chemo) | cisplatin |
In reference to SCLC what combination chemo may have a dramatic response when used with radiation? | Cistplatin and etoposide |
What is the standard care for lung ca patients? | Systemic chemo with external radiation |
If using hyperfractionation what is the dose and rate? | 120cGy bid to 7200cGy. |
What is the standard care plan for lung ca in regards to dose? | chemo and rad at 4500cGy, boost to 6500-7000cGy at 180/200cGy. Boost is often obliques to divert off cord and other crit organs. |
What are the critical structures in lung ca RT? | Heart (40Gy), Esophagus (55Gy), Lung (17Gy), Cord (47Gy) |
How are lung fields setup? | With a 2-2.5cm margin around tumor and around nodal groups in risk. |
What tumors are associated with horner's? | Pancoast tumors |
What are the symptoms associated with pancoast tumor presentation? | Shoulder, arm pain, horner's, atrophy of hand muscles |
What might be used in the setup of a field (immob devices)? | Vac-lock bag, wing-board, pad below waste, knee sponge |
What is the td 5/5 for the heart? | 40 gy |
What is the td 5/5 for the lung? | 17 gy |
What is the td 5/5 for the esophagus? | 55 gy |
What is the td 5/5 for the spinal cord? | 47 gy |
When referencing the lymphatic drainage what is the order? | intrapulmonary, hilar, mediastinal, supraclavicular |
With lung ca RT what dose may be recorded to make sure it is not to exceed a certain point? | Cord dose, this is due to the ap/pa fields. |
What syndrome associated with radiation induced transection of the cord can occur due to overdosing cord in lung ca RT? | brown-Sequards, involves paralysis and loss of sensations such as pain and temp dependent on level spine involved. |
What are the overdosing complications that can occur in regards to the heart? | pericarditis, if 2/3 or more receive 4500-5500 |
What occurs due to the dose the adjacent lung is receiving? | pneumonitis followed by fibrosis. Pneumonitis can cause dyspnea, fever, night sweats, cyanosis. |
What energy will be used to treat lung ca? | 6-10 mv |
What is the dose range for tumor control of bronchogenic ca? | 60 - 75 Gy |
When tx is combination of chemo and rt what is the total dose? | 30 Gy to 50 Gy |
If a pt is being treated accelerated hyper what is the length/dose/daily dose? | 23 days, 7360 cGy, 160 cGy BID |