8.5 (10.5) Etiology, classification, assessment, and treatment of the anorexia-cachexia syndrome Flashcards

1
Q

What are two negative balances associated with anorexia-cachexia syndrome?

What are two major drivers of the syndrome?

A

Negative energy + protein balance

Driven by reduced food intake + abnormal metabolism due to inflammation generated in brain, tumor, tissues by tumor, diversity of host cells

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2
Q

List four patient conditions that will exacerbate muscle loss in the cachexia syndrome

A

old age (age-related sarcopenia)
physical deconditioning
nutritional deficiency

pulmonary disease (COPD)
chronic renal failure

hypogonadism
insulin resistance

drugs
medical interventions (including all major cancer therapies: surgery, radiotherapy and chemotherapy)

FS:
- Old age
- Physical deconditioning
- Poor intake
- Chronic comorbidities (COPD, CKD, diabetes)
- Drugs/medical txs

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3
Q

What are FOUR complications of cachexia syndrome? (medical and non medical)

A

decreased physical function
decreased immune function
increased morbidity
increased mortality
psychosocial isolation
increased health service utilization

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4
Q

What defines grade three weight loss according to the subjective global assessment?

A

Grade 1-month loss 6-month loss
0 0–1.9% 0–1.9%
1 2.0–2.9% 2.0–5.9%
2 3.0–4.9% 6.0–9.9%
3 5.0–9.9% 10.0–19.9%
4 ≥ 10% ≥ 20%

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5
Q

What defines grade 4 weight loss according to the subjective global assessment

A

≥ 10% over one month ≥ 20% over 6 months

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6
Q

Define cachexia syndrome

A

a MULTIFACTORIAL SYNDROME characterized by an ongoing loss of SKELETAL muscle mass (with or without loss of fat mass) that cannot be fully REVERSED by conventional nutritional support and which leads to progressive functional impairment

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7
Q

What three findings might suggest that a patient is at risk of anorexia-cachexia syndrome?

A

weight loss (grade 3-4, BMI <18.5)
reduced food intake (< 1500 kcal/day)
systemic inflammation (serum CRP > 10 mg/L)

poor performance status
aggressive malignancy

FS:
Store - weight loss (grade 3-4, BMI <18.5)
Intake <1500kcal/day + Inflammation CRP >10
Performance (PPS)
Potential (minimal with advanced ca)

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8
Q

When clinically assessing for anorexia cachexia syndrome what four MAJOR initial elements need to be assessed?

A

SIPP

nutritional Stores
Intake
Performance/psychosocial impact
catabolic drivers/Potential for reversal

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9
Q

When creating treatment plan for patients with anorexia cachexia, what factors do you have to consider

A

Type of anorexia cachexia (pre-cachexia, cachexia, refractory cachexia)
Performance status
Prognosis
Expectations (GOC)

FS:
Stores – S+I = type of anorexia
Intake – S+I = type of anorexia
Performance, PPS, prognosis, GOC
Potential to reverse

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10
Q

A patient with breast cancer is assessed for the anorexia-cachexia syndrome. They are found to have at lost 2% of their body weight in the last six months, are eating 1600kcal/day and are receiving maintenance letrozole for hormone positive cancer. There is no evidence of progression at this time. The patient reports decreased intake due to dysguesia. What recommendation do you make?

A

“Pre-cachexia” –> Monitor + Preventative intervention
Ask patient to F/U if further weight loss/decrease intake
Dysguesia assessment/treatment

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11
Q

A patient with PANCREATIC CANCER is assessed for the anorexia-cachexia syndrome. They are found to have at lost 35% of their body weight in the last six months, are eating 500kcal/day and are admitted to PCU for symptom mgmt. They are not receiving chemo x 4 weeks with no further tx options. What recommendation do you make?

A

“Refractory cachexia”

Symptomatic management ie steroids, megace + rule out malabsorption from pancreatic enzyme deficiency, DM

Ethical discussion around nutritional support

Psychosocial support

normalize as consequence of advanced illness

FS:
Education - normalize as result of advanced cancer

Diet - eating for comfort, discuss nutritional support ethics

Tx reversible - e.g. malabsorption (pancreatic enzyme), DM

Tx symptoms - Dex, megace

—-

Tx source (anorexia = OT/PT)
Tx symptoms
Tx complications
Educator

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12
Q

Refractory cachexia due to rapidly progressive cancer unresponsive to therapy is associate with what prognosis?

A

<3 months

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13
Q

A patient with ovarian cancer is assessed for the anorexia-cachexia syndrome. They are found to have at lost 11% of their body weight in the last six months, are eating 1400kcal/day and are living at home receiving 3rd line chemotherapy with further options for if/when this fails. What recommendation do you make?

A

“Cachexia” –> Multimodal management:

dietician consult
physio consult (exercise)
treat secondary causes
treating cachexia weight loss (steroid, megace, dronabinol, ghrelin)
anti-inflammatory (NSAID or EPA)

FS:
- Education
- Diet + exercise (consult dietician and PT)
- Symptomatic tx
- Tx reversible

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14
Q

What are the 4 major treatment considerations for a patient with anorexia cachexia syndrome who is not at EOL and is not bed bound

A

dietician consult
physio consult (exercise to maintain skeletal muscles)
treat secondary causes
treating cachexia (steroid, megace, dronabinol, ghrelin)
anti-inflammatory (NSAID or EPA)

FS:
Education
Diet + exercise (dietician and PT)
Tx symptom
Tx source

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15
Q

List medications that can be used to treat cachexia

  • 2 recommended
  • 2 insufficient evidence
  • 1 not recommended
A

Corticosteroids (for patients with short life expectancy - improves appetite but not weight gain)

Progestins (eg megace - improves weight gain and appetite, risk of DVT))

Dronabinol, CBD (poor evidence)

Ghrelin (ie hunger hormone)

Uptodate:
Potentially beneficial agents - steroid, megace
Insufficient evidence - mirtazapine, olanzapine, ghrelin, NSAIDs
Not recommended - cannabinoids

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16
Q

What are 4 SECONDARY CAUSES of reduced intake that can contribute to reduced energy intake for those who are losing weight?

A

Oral problems: dentures, mouth sores, thrush, dry mouth, dysphagia/odynophagia

GI: early satiety, N/V, obstruction, constipation, diarrhea, abdo pain

Metabolic: diabetes, malabsorption (both common associations with advanced pancreatic cancer) and which if not managed with insulin/pancreatic enzyme supplements will result in continuing weight loss independent of any nutritional intervention

Side effects of drugs

Fatigue: sleep disturbance, physical limitation, motivation, cognitive fatigue

Psychological factors: anxiety, depression, family or spiritual distress

FS: use vindicatenp for DDX

17
Q

What are 2 key basics in dietary advice you can give to patients with cancer?

A
  1. Avg daily calorie deficit in weight losing cancer patient is 250-400kcal/day
  2. Vital to maintain high protein intake (1-1.5g/kg of BODY WEIGHT/day) to maintain muscle mass
18
Q

2 approaches to treat inflammation (although evidence not great)

A

NSAIDs
Dietary fish oil

19
Q

A patient’s has refractory anorexia-cachexia syndrome and the family is concerned about the patient’s weight loss. What are three things you will review with them when discussing the syndrome?

A

discuss patients expectations concerning future benefit of any intervention

Burden of intervention (eg daily oral supplements) needs to match what patient is willing to go through for minimal gains

Frame as consequence of advanced cancer

Suggest symptomatic tx (ie. dex)

FS:
- Education: consequence of advanced cancer
- Diet: discuss burden of intervention + expectation of minimal gains
- Symptomatic tx (e.g. Dex)

20
Q

What are the two major classes of medication for cancer associated cachexia? How does each one result in weight gain?

A

corticosteroids - increased appetite, reduced inflammation?
progestins - increased appetite, increased caloric intake

21
Q

What are 3 major side effects of megesterol acetate

A

DVT/lower extremity edema
sleep disturbance
sexual side effects

22
Q

How does cannabinoid help with anorexia cachexia (mechanism)

A

chemosensory alteration - ie increasing patient’s ability to taste and smell -> increase food palatability

23
Q

List 4 conditions for the use of artificial nutrition in the setting of cancer/palliative care

A

Unable to maintain nutrition via oral route

Relatively long life expectancy (at least 3 months)

Undergoing active treatment for life limiting illness

Defined end point

24
Q

What is the main cause of decreased food intake in advanced illness

A

primary cachexia (CNS) not secondary causes