Suppportive Care in Oncology Flashcards
Common symptoms in advanced cancer (9)
- Constipation
- Intestinal obstruction
- Diarrhoea
- Dyspnoea
- Nausea & Vomiting
- Depression
- Xerostomia
- Delirium
- Pruritis
Constipation symptoms
- unable to move bowels
- having to push harder to move bowels (straining)
- moving them less often than usual
- faeces small, dry and hard
Constipation causes (3)
- Disease-related
- immobility
- tumour invasion leading to obstruction - Fluid depletion
- Medication
- opioids
- calcium
- iron
Constipation complications (3)
- Colic or constant abdominal discomfort
- Intestinal obstruction
- Confusion or restlessness if severe
Before prescribing laxatives for constipation,
2
- Rule out obstruction
- Consider underlying causes
eg drugs
Laxatives for constipation (3)
- Bulk forming
- fybogel
- not usually in palliative care - Stimulant laxatives
- senna
- bisacodyl - Osmotic laxatives
- lactulose
- phosphate enema
- forlax
Precaution/advice for patients taking bulk forming & osmotic laxatives
Drink extra fluids
Laxatives not suitable for intestinal obstruction (2)
- Bulk forming
- Stimulant laxatives
- esp complete obstruction cos increase cramping pains
Rectal examination
Is rectum impacted or empty?
- If rectum is impacted, is stool hard or soft?
- If rectum is empty, is it “ballooned”/dilated or non-dilated?
Treatment for
- Impacted rectum
- Soft stool
- Use rectal stimulant
- biscodyl suppositories
- phosphate enema - If still no defecation, increase oral stimulant or softener
Treatment for
- Impacted rectum
- Hard stool
- Lubricate with glycerin suppositories or soften with olive oil enema
- If still no defecation, increase oral stimulant or softener
Treatment for
- Empty rectum
- non-dilated
- exclude intestinal obstruction
- ensure patient is on regular laxatives
- consider additional laxatives when necessary
Treatment for
- Empty rectum
- dilated / “ballooned”
- suggests constipation higher up
- give high fleet enema over several days until constipation resolves
- if colic present, reduce any stimulant laxatives & add softener or osmotic agents
- if colic absent, increase stimulant laxatives
Why reduce dose of stimulant laxatives when colic present?
- reduce cramping pains for the patient
Should preventive treatment for constipation be use before symptoms present?
Yes
Check for any possible risk of constipation, if present then introduce laxatives to patient’s regimen
eg opioids use
Intestinal Obstruction classifications (I/O) (3)
- upper vs lower GI I/O
- mechanical vs functional (ileus)
- complete vs incomplete
Upper GI I/O symptoms
- vomiting
- abdominal distension
- constipation
- anorexia
Vomiting : large volume, bilious
Abdominal distension : may be absent
Constipation : late feature
Anorexia : early feature
Lower GI I/O symptoms
- vomiting
- abdominal distension
- constipation
- anorexia
Vomiting : small volume, faeculent
Abdominal distension : present
Constipation : early feature
Anorexia : late feature
General treatment for I/O (3)
Reversing obstruction if possible & relief symptoms
- Gut rest
- NBM (nth by mouth)
- IV hydration
Management of I/O (operable)
- consider surgery to remove the hard stools
Management of I/O (not operable)
- stenting
- trial of steroids (reduce peritumoral oedema & improve intestinal transit)
Contraindications for stenting (2)
- Multiple levels of obstruction
2. Rectal tumours (risk of stent migration)
Complete I/O treatment
- pain (2)
- n/v (3)
- pain relief with morphine +/- anticholinergics (eg hyoscine)
- n/v relief with haloperidol, octreotide or NGT suction
- avoid prokinetics eg metocleopramide
Incomplete I/O treatment (4)
- pain
- n/v
- bowel
- pain relief with fentanyl (less constipation)
- buscopan if pain not relief (laxative > stimulant to reduce pain)
- n/v relief with metocleopramide
- clear bowels using high fleet/lactulose
Dietary advice for patients prone to I/O or gastric outlet obstruction (3)
- low residue & fibre diet
- limit fat intake (fat increase stool bulk)
- avoid tough fibrous meats
Reduce potential obstruction which can aggravate I/O
Bristol Stool Form Scale
Type 1-7
- increasing watery & looseness
Diarrhoea symptoms (2)
- loose or watery stools
- more than 3 unformed stools within 24h
Diarrhoea causes (3)
- Medications (eg irinotecan, laxatives)
- Diets
- spicy
- alcohol
- fruits (fibrous) - Treatment (RT & chemotherapy)
Before prescribing for diarrhoea, (2)
- Rule out fecal impaction, intestinal obstruction & infective causes
- Consider underlying causes
eg medications, diets
Diarrhoea management (4)
- Diphenoxylate/atropine
- not to use if liver impairment - Loperamide HCl
- Codeine phosphate
- with pain - Octreotide
- tumour secretions
CI for codeine phosphates (3)
- Asthma
- COPD
- hepatic/renal disease
CI for diphenoxylate/atropine
Liver diseases
Dietary advice for patients with diarrhoea (6)
- eat small but frequent meals
- eat low fibre diets
- maintain sufficient fluid intake (2L)
- avoid coffee, tea, milk, alcohol & sweets
- avoid greasy foods
- gradually reintroduce proteins then fats as diarrhoea resolves
Dyspnoa
- subjective experience of breathing discomfort
Principles of management of dyspnoea (2)
- treat reversible
- non-drug measures are essential but as illness progress, medication become alot more necessary
Management of dyspnoea (5)
- Oxygen therapy
- SpO2 <90% (hypoxic) - Opioids
- SOB at rest/minimal exertion
eg morphine, fentanyl (if patient have renal impairment) - Steroids
- reduce peri-tumoral edema
eg dexamethasone - Anxiolytics
eg lorazepam & midazolam
eg escitalopram (antidepressants if longer prognosis) - Secretions treatment
- nebulised NaCl 0.9% (loosen secretion)
- anticholinergics (buscopan)
- suction (distressing)
Advice for patients with dyspnoea (5)
- Break tasks into smaller bits & use aid when necessary
- Breathing techniques
- Find comfortable positions
- Open windows to allow ventilation/fans for non-hypoxic patients
- Use of opioids prior to major movements/tasks for prevention
Nausea definition
- subjectively unpleasant sensation associated with flushing, tachycardia and an awareness of the urge to vomit
Retching definition
- involves spasmodic contractions of the diaphragm, thoracic & abdominal walls muscles without expulsion of gastric contents
Vomiting/emesis
- expulsion of stomach contents from mouth
Before prescribing for n/v,
- exclude regurgitation (different approach)
Management of n/v (7)
- Domperidone (prokinetic)
- Metoclopramide (prokinetic)
- Haloperidol
- Olanzapine
- Ondansetron (5-HT antagonist)
- Buclizine (antihistamine)
- Mirtazapine (NaSSAntagonist)
Advice for n/v (5)
- eat small but frequent meals
- rinse mouth before eating (1 tsp of baking soda/sodium bicarb) to remove bad taste
- candies (lemon & peppermints)
- drink clear liquids as often as possible to prevent dehydration
- ensure nutritional status
Colicky pain after prokinetics
Suggests intestinal obstruction
Depression symptoms
InSADCAGES
- interest
- sleep
- appetite
- depressed
- concentration
- activity
- guilt
- energy
- suicidal
In & D
What type of antidepressant to use? (2)
- all antidepressants have similar efficacy
- consider side effect profile & any comorbidity to indicate what type of antidepressant to use
Bupropion
- CI
- benefit
CI :
- seizures
- eating disorders
- psychosis
Benefit :
- no sexual dysfunction
Mirtazapine
- disadvantages
- benefit
Disadvantages :
- weight gain (due to increased appetite)
- sedation
Benefit :
- no sexual dysfunction
Duloxetine
SNRI
Benefit :
- diabetic neuropathic pain
- fibromyalgia
- chronic musculoskeletal pain
Venlafaxine
Disadvantage :
- worsens HTN
Xerostomia symptoms
- dryness of the mouth
- altered salivation
- need to expectorate frequently or manually remove thick saliva
Management of xerostomia (8)
- Frequent oral rinses or sips of water/juices
- Mouth care before & after meals & at bedtimes
- Soft & moist foods > dry & sticky foods
- Increase fluid intake during meals
- avoid alcohol & carbonated drinks - Suck on sugarless candies
- Lubricate oral cavity
- olive oil
- butter - Apply lip moisturiser to prevent drying/chapping of lips
- Medications to promote saliva production
- pilocarpine
Delirium symptoms (4)
- disturbed consciousness
- inattention / terminal restlessness
- cognitive impairment / confusional state
- agitation
Assessment tools for delirium (2)
- Mini Mental State Examinations (MMSE)
2. Confusional Assessment Method (CAM)
Causes of delirium (5)
1. Infection eg UTI 2. Drug induced eg opioid toxicity, corticosteroids 3. Constipation, urinary retention or catheter problems 4. Sensory impairment 5. Dehydration
Management of delirium (3)
First line : Haloperidol Second line : Benzodiazepines - lorazepam - midazolam - does not improve cognition but help with anxiety to calm patient down
Increase fluid intakes
Pruritis symptoms (2)
- persistent scratching leading to skin damage, excoriation & thickening
- dry skin
Management of pruritis (4)
- Emollients
- ointments > creams for dry skin
- use emollient to bath water & soap substitute - Avoid topical antihistamines
- cause allergic dermatitis - Reserve systemic medication if topical therapy (skin care) doesn’t improve symptoms
- Avoid caffeine, alcohol, spices & hot water
Cholestasis pruritis treatment (3)
RSC
- Rifampicin
- Sertraline
- Cholestyramine
Uremia pruritis treatment (1)
UG
Gabapentin
- renal dose adjustment req
Lymphoma pruritis treatment (1)
Prednisolone
Systemic opioids-induced pruritis (1)
Chlorpheniramine
Paraneoplastic pruritis treatment (1)
PP
Paroxetine
Unknown reason for pruritis
Chlorpheniramine
Buscospan uses (2)
- relieve pain from intestinal cramps
- decrease respiratory secretions
Treatment of N/V from drugs (2)
- metoclopramide
- haloperidol
N/V from motility disorder (2)
- metoclopramide
- domperidone
N/V from :
- intracranial disorders
eg vestibular dysfunction
- oral pharyngeal irritation
(2)
- Anticholinergics
- hyoscine - Antihistamines
- buclizine
Assessing patients with depression
- rule out medical / drug-induced cause
Advice for patients taking anti-depressants (3)
- adverse effect can occur immediately
- anti-depressant effect may take place 2-4 weeks or even longer
- need to adhere to treatment plan
Drugs that can cause delirium (2)
- opioids toxicity
- corticosteroids