Symptom Assessment · 2020. 7. 28. · Some patients can’t complete them •Proxy assessments...
Transcript of Symptom Assessment · 2020. 7. 28. · Some patients can’t complete them •Proxy assessments...
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Symptom AssessmentJo Thompson
Lead Nurse – Supportive & Palliative Care
Royal Surrey County Hospital, Guildford
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Aims
• Highlight the evidence for thorough symptom assessment
• Discuss the pros and cons of using validated symptom assessment tools
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But first…
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Symptoms
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Symptoms
• Symptoms are numerous and prevalent in patients with life limiting illnesses
• Symptoms directly influence patient’s distress, quality of life and overall survival
• Symptoms increase caregiver burden
• One of the critical aspects of symptom management is routine assessment and reassessment
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Prevalence
• The average cancer patient reports 8-12 symptoms (Hui et
al 2017)
• Fatigue
• Pain
• Anorexia
• Cachexia
• Dyspnoea
• Anxiety
• Depression
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Symptom assessment tools –some context
• 152 different assessment tools related to palliative care!
• Mean number of items per tool – 24
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Validated symptom assessment tools
• Measure outcomes in research studies
• Directly assess symptoms / monitor symptom trajectory using patient reported outcomes
• Support service evaluations
• Trigger clinical actions or referrals to specialists
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Why use validated symptom assessment tools?
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The benefits
• Allows more thorough symptom assessment
• Median number of symptoms volunteered: 1 (0-6)• Median number of symptoms on systematic assessment: 10
(0-25) (Homsi et al 2006)
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Symptom assessment tools
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The benefits
• Qualitative study of staff across 9 hospices in USA who introduced the ESAS for routine symptom assessment
• Engaged patients in symptom assessment
• Enabled patients to bring things up / talk about things they may have felt uncomfortable with
• Useful tool for teaching / supporting junior staff with symptom assessment
Schulman-Green et al (2010)
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The benefits
• Allow patients more time or to feel free to indicate the presence of symptoms
• Allows symptoms not considered by patients to be ‘important’ or ‘treatable’ to be discussed
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Patient satisfaction
• Survey of 3660 patients assessed using the edmontonsymptom assessment scale (ESAS)
• 92% felt the ESAS was important as helped their healthcare team to know their symptoms and severity
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Different tools, different measures
• Symptoms can be asked about (“recall”):
• At time of assessment
• In the last 24 hours
• In the last week
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Different tools, different measures
• Symptoms can be measured:
• In severity / intensity
• In frequency
• According to the amount of distress they cause
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Different tools, different measures
• When looking clinically at symptoms impacting quality of life:
• Level of “distress” caused by the symptom is most informative for physical symptoms
• “frequency” of the symptom is most informative for psychological symptoms
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Different tools, different measures
• Is important to look at multiple symptoms if looking to gather QOL information
• Tools such as the distress thermometer do not appear to be beneficial. Little is known about what the tool
actually measures (Stewart-Knight et al 2012)
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To use….or not to use ?
• Burdensome for patients
• ‘unnatural’
• Time consuming for staff
• Not much can be done for some
symptoms
• Some patients can’t complete them
• Too many to choose from!
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Burdensome and time consuming
• Longer tools not always ideal for use in clinical practice
• Shorter, ‘condensed’ tools developed with this in mind
• Aim to be ‘low burden but meaningful assessment’
• Whilst many symptoms are clinically relevant, there are a core set of symptoms that carry most health related QOL information
• CMSAS (14 symptoms) was found to convey equivalent quality of life information as the longer 32 item MSAS
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Time consuming?
• CMSAS – approx 2-4 mins to complete
• MSAS-SF – approx 5-7 mins to complete
• IPOS – less than 10 mins to complete
• (Certain relevant symptoms will be missed however)
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Not much can be done for some of the symptoms
• Evidence to suggest addressing symptoms and talking about
them can reduce the amount of distress associated with them
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Measuring improvement
• How frequently should symptoms be measured?
• No agreement (between 3-30 days according to literature)
• How much change reflects clinical improvement?
• ESAS (NRS) highlights 1 point change reflects improvement or deterioration
• Scores ≥ 4 should trigger clinical action / more comprehensive assessment
• These ‘cut points’ or ‘minimal clinically important differences’ should be treated with caution
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Measuring improvement
• Evidence to suggest personalised symptom goals (PSG) are more relevant
• “at what level of …… would you feel comfortable?”
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Some patients can’t complete them
• Proxy assessments – Family members
• Overestimate symptoms
• More marked for psychological rather than physical
• Better at identifying / quantifying more ‘concrete’ symptoms
• Family members who are more significantly burdened provide assessments that are more discordant with the patients’
• Agreement was better for symptom severity but worse for frequency and distress
(McPherson et al 2008 & Lobchuket al 2002)
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Some patients can’t complete them
• Proxy assessments – health care professionals
• Tended to be good correlation between nurse and patient ratings (pain and symptom control) although not in relation to anxiety levels, practical matters (Horton et al)
• Nurses tended to rate symptoms lower than patients on occasion 1 but higher on occasion 2
• Correlation did not improve with repeated assessments (Nekolaichuk et al)
• When nurses clinical impressions were used compared to patients using ESAS there was poor correlation (Rhondali et al)
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Proxy assessments
• Physicians … could do better!
• Average physician ratings were generally lower than patient ratings
• Physicians rated pain, shortness of breath and drowsiness significantly lower (Nekolaichuk et al)
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Too many to choose from!
• No ideal instrument
• Balance between comprehensiveness and compliance
• Choice of instrument depends on the purpose
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Assessment doesn’t always lead to clinical actions…
• When symptoms of pain and SOB were documented as moderate to severe clinical actions were documented in only 29% and 6 % of visits respectively
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Conclusion
• Thorough symptom assessment is important
• Validated tools (including shorter / condensed) offer more comprehensive assessment
• Assessing a range of symptoms is important
• Patients don’t appear to find them burdensome
• Proxy ratings should only be used where really necessary
• Personalised symptom goals should be considered
• Screening and assessment doesn’t unfortunately always lead to clinical action