Cancer Flashcards
What is the cancer epidemic?
14 million new cases worldwide 2012
8.8 million deaths worldwide 2015
352,197 new cases in the UK 2013
No. of new cases to rise by 70% over 20 years
Over 60% of new cases and 70% of deaths occur in Africa, Asia and C and S America
A third of cases attributed to behavioural/dietary risks – smoking (biggest aetiological factor, a/c for 20% all global cancer deaths and 70% global lung cancer deaths), high BMI, low levels exercise, low fruit/veg intake, high EtOH
WHO target of 25% reduction of deaths from cancer and other NCD in people 30-69 yrs old by 2025
What are places in the body that cancer can occur?
Multiple cancers
over 200 types of cancers
Could metastasise
Affects different parts of the body Like:
CNS
Lungs
hepatobiliary
gastrointestinal
sarcoma
skin cancer & melanoma
gynaecologic
genitourinary
blood
breast
endocrine
head & neck
What are the common features of cancers?
Uncontrolled growth of abnormal cells
Sustaining proliferative signalling
Evading growth supressors
Activating invasion and metastasis
Enabling replicative immortality
Inducing angiogenesis
Resisting cell death
What are the biological classification of cancers?
Carcinoma
Sarcoma
Leukaemia
Lymphoma
Myeloma
Brain and spinal cord cancers
What are the clinical classification of cancers?
Stage: Early vs Advanced
Setting: Primary vs Metastatic
(Stages and settings are almost interchangable)
Grade: Low vs High
Treatment intention: Curable vs incurable
What are the treatment options for cancer?
Surgery
Chemotherapy (Adjuvant chemotherapy= given after surgery) Neoadjuvant chemotherapy= chemotherapy that a person receives before their primary care treatment course.
Radiotherapy
Hormone therapies (especially for breast and prostate cancer)
Targeted drugs (targets receptors)
Immunotherapy (could make the body’s immune system target the cancer)
Palliative treatment (if patient is in pain)
What are the advances of cancers?
Personalised medicine
Targeted therapies
Immunotherapy
Vaccinations (against oncogenic viruses eg HPV. Antiretrovirals)
Stereotactic/gamma knife radiotherapy
Proton beam therapy
What are the Global Health successes to date?
Malaria
HIV/AIDs
Maternal health
What are cancer-specific challenges
Heterogenous populations and patterns of disease
Specialised equipment
Sophisticated drugs
Policy
High cost (Cost – 2010 estimated total annual economic cost of Ca US$1.16 trillion)
What are the most common Cancer sites worldwide by SEX, 2012
Where are the most common cancers, through risk factors?
- North America= obesity
- Europe= Smoking
- Asia= tea
- N Africa
- SSA= HIV
- Australia = Sun
- S America= pollution/deforestation
In order, state the income group with the greatest percentage of over 65s (2013)
- HIC
- UMIC
- MIC
- LMIC
- LIC
What are the cost of some breast cancer drugs?
- TAC £6554/18 weeks
- Capecitabine £3150/year
- Lapatinib £20969
- TDM1 £90831/14 months
What are some supportive therapies for breast cancer?
Filgratim £2,213 (no 1 chemotherapy drug. Have injections which boost bone marrow turnover. You must give prophylactically with high-risk patients/ if patient comes into A&E)
Aprepitant £285 (Strong antiemetic)
Ondansetron £259 (Antiemetic)
Who are responsible for the global surveillance of cancer?
Incidence- collected by International Agency for Research on Cancer (IARC)
Mortality-WHO
Survival-CONCORD