Oncology Flashcards
Purine Analogues
Fludarabine Cladribine Pentostatin Clofarabine Nelarabine Azathioprine
R-CHOP chemotherapy components
Rituximab Cyclophosphamide Doxorubicin Vincristine Prednisolone
ABVD chemotherapy components
Adriamycin
Bleomycin
Vinblastine
Dacarbazine
Who needs irradiated blood?
Any Hodgkins Lymphoma
Any Purine Analogue Chemotherapy
Immunosuppressed
Who needs CMV negative blood?
Pregnant women - not essential at delivery
Neonates
SIRS Criteria
Fever >38 or hypothermia <36
RR > 20
HR > 90 beats/minute
WBC >12
Neutropaenic Sepsis =
Sepsis and neutrophil count <0.5
If chemotherapy within last 21 days, then neutrophil count <1
Definition of standard risk of neutropaenic sepsis
Neutropaenia
Sepsis
NEWS < 6
Definition of high risk of neutropaenic sepsis
Neutropaenia
Septic shock
NEWS > 7
Management of standard risk neutropaenic sepsis
Piperacillin or Tazobactam
Management of standard risk neutropaenic sepsis
Penicillin Allergic
Teicoplanin + Aztreonam
Management of high risk neutropaenic sepsis
Piperacillin/Tazobactam
+
Gentamicin
Management of high risk neutropaenic sepsis
Penicillin Allergic
Teicoplanin + Aztreonam + Gentamicin
Chemotherapy and Gentamicin
Get advice if on cisplatin chemotherapy
Neutropaenic Sepsis and Previous ESBL Management
Meropenem
When should antibiotic therapy be reviewed in neutropaenic sepsis?
48-72 hours
If afebrile consider converting to oral antibiotics
If persistent consider switching to meropenem
Types of non-small cell lung cancer
Adenocarcinoma
Squamous cell
Large cell
Mixed/Undifferentiated
ABVD chemotherapy is used in
Hodgkins Lymphoma
CHOP/R-CHOP is used in
Non-Hodgkins Lymphoma
MVAC chemotherapy is used in
Advanced bladder cancer
Types of bladder cancer
Transitional cell carcinoma
Squamous cell carcinoma
Association with transitional cell carcinoma
Smoking
Aniline dyes
Rubber manufacture
Associations with squamous cell carcinoma of the bladder
Schistomiasis
Adjuvant VS Neo-Adjuvant
Adjuvant = to reduce cancer recurrence Neo-Adjuvant = to down-stage the tumour prior to tumour
Bone Marrow Suppression in Chemo (3)
Neutropaenia
Anaemia
Thrombocytopaenia
GI Toxicitiy in Chemo (2)
Nausea/vomiting
Mucositis
Neurotoxicity in Chemo (2)
Peripheral Neuropathy
Ototoxicity
Cardiac Toxicity in Chemo (2)
Reduced ejection fraction
Coronary vasospasm
Bladder Toxicity in Chemo
Haemorrhagic Cystitis
MOA of Anti-Metabolite Chemotherapy
Inhibit folic acid synthesis
OR
Inhibit purine/pyramidine synthesis
Examples of Anti-Metabolites (4)
5FU
Azathioprine
Fludarabine
Methotrexate
MOA of Anti-Microtubule Agents
Prevent microtubule function
Examples of Anti-Microtubule Agents (3)
Paclitaxel
Vincristine
Vinblastine
Types of Alkylating Agents
Platinum Drugs
Nitroureas
Cyclophosphamide, Dacarbazine
Cetuximab target
EGFR1
Rituximab target
CD20
Describing the dose of radiotherapy
Measured in Gray (Gy)
A fraction describes a single treatment
e.g. Radiation at 60Gy in 30 fractions (2Gy per fraction)
Short Term/Temporary Effects of Radiotherapy (5)
SOB Cough Oesophagitis Headaches Skin changes
Long Term/Permanent Effects of Radiotherapy (2)
Fibrosis
Memory changes
What is SABR?
What is it used for?
What are the side effects?
Sterotactic ablative body radiotherapy
= more accurate delivery of external beam radiotherapy: use higher doses/fraction
Lung cancer
S/E: rib fractures, myelopathy
What is Bracytherapy?
What is it used for?
= small radiotherapy sources into or next to the tumour
Uses: cervical cancer, endometrial cancer, prostate cancer
Management of Chemotherapy Induced Nausea and Vomiting
Dexamethasone
NK1 Antagonist
5HT3 Antagonist
Benefit of the 5HT3 Antagonist in CINV
Effective for acute events
Benefit of the NK1 Antagonist in CINV
Effective for delayed events
Acute CINV =
Within 24 hours of chemotherapy
Delayed CINV =
24 hours - 7 days post chemotherapy
Example of NK1 Antagonist
Aprepitant
Examples of 5HT3 Antagonist (2)
Ondansetron
Granisetron
Management of anticipatory nausea and vomiting
Lorazepam
Metoclopramide
Contraindications
Cannot be used in Parkinson’s Disease
Extra-thoracic presentations of lung cancer (3)
Liver - painful due to the stretching of the liver capsule
Bone - lytic lesions. May also result in cord compression
Brain - mass effect may result in headaches, vomiting, visual loss or seizure
Paraneoplastic syndromes associated with lung cancer (4)
Hypercalcaemia
SIADH secretion
Cushing’s syndrome
Hypertrophic osteoarthropathy
Curative radiotherapy dose in lung cancer
55Gy in 20 fractions
Radiotherapy offered in small cell lung cancer
Offer prophylactic irradiation of the brain (mets)
Two main groups of ovarian tumour
Epithelial cell tumours
Germ cell tumours
Types of epithelial ovarian tumour (4)
Serous
Mucinous
Endometriod
Clear cell
Stage 1A vs Stage 1B Endometrial Carcinoma
1A - contained within the endometrium
1B - spread into the myometrium
When to use Trastuzumab in Breast Cancer
HER2 Positive
Most common area for BPH to develop
Transitional zone of the prostate
Most common area for prostate cancer to develop
Peripheral zone of the prostate
Grading system used in prostate cancer
Gleason System
When would radical prostectomy be considered?
2 conditions
Lifespan >10 years
T1-3 stage tumour
Which lymph nodes drain the prostate?
Internal iliac nodes
Management of oedema in brain tumours
Steroids
Initial investigation of choice in suspected brain tumour
CT head
Benign brain tumours (5)
Pituitary adenoma Cranio-pharyngioma Meningioma Acoustic neuroma Dermoid tumour
Malignant brain tumours (5)
Glioma Pineoblastoma Primary Cerebral Lymphoma Medulloblastoma Germinoma
Association with Primary Cerebral Lymphoma
HIV
Grading of Glioma
I - fibrillary astrocytoma
II - astrocytoma or oligodendroglioma
III - anaplastic astrocytoma OR oligodendroglioma
IV - glioblastoma multiforme
Management of malignant brain tumours
Radiotherapy - 60Gy in 30 fractions
Temozolamide chemotherapy
Presentation of pain in spinal cord compression
Radicular pain = band around the middle, burning pain
Investigation of suspected spinal cord compression
Urgent MRI of spine
Management of spinal cord compression
Radiotherapy
Causes of hypercalcaemia in malignancy (3)
Release of PTH-related protein
Local destruction of bone
Tumour produces vitamin D analogues
Management of hypercalcaemia
Rehydration - lots of saline
Bisphosphonates - IV pamidronate (can cause renal failure so checking U&Es important)
Systemic management of the malignancy
Pathophysiology of pericardial tamponade
Pericardial effusion develops
Compresses the ventricle, reducing cardiac output
Collapses the right atrium increasing venous back pressure
Beck’s Triad
- What an indication of?
- Components?
= pericardial effusion
- Jugular venous distension
- Muffled heart sounds
- Hypotension with narrowed pulse pressure
Investigation of choice in suspected PE
CTPA
Lung cancer associated with hypercalcaemia
Squamous cell carcinoma
Potential complication of cervical cancer
Ureteric obstruction
Chemo drug associated with cardiomyopathy
Doxorubicin
How does chemotherapy result in a proteinuria?
Causes direct renal tubular damage = proteinuria