Assessing Pain and Unmet Need in Patients with Advanced Dementia: The Role of the Serial Trial Intervention (STI)


Body part cues

Tense muscles, pulling away when touched, rubbing or holding a body part, shifting weight when seated, protecting a part of the body when moving

Change in activity

Restless body movement, agitation, combative/angry, exiting behavior, withdrawing or becoming quiet, resisting care, aggression, an increase or decrease in activity

Change in function

Changes in mobility, decreased or increased sleep, increased confusion, decreased appetite, increased physical dependence, a change in social interaction, slow movement

Vocal

Crying, moaning, nonspecific verbal perseveration, a specific verbal confirmation of pain

Other

Facial grimacing, change in respirations



Behavioral Assessment of Pain in Dementia:

The five behavioral observation tools with the strongest psychometric properties are the DS-DAT (Discomfort Scale for Dementia of the Alzheimer’s Type), CNPI (Checklist of Nonverbal Pain Indicators), NOPPAIN (Noncommunicative patient’s pain assessment instrument), PACSLAC (pain assessment checklist for seniors with limited ability to communicate), and the Doloplus 2 (Herr et al. 2006).

Use of a formal pain observation tool coupled with a formal protocol for assessment and treatment is recommended in this population because health care professionals have the tendency to under-identify behavior changes and the need for additional physical assessment. In a study of 155 nursing home residents with advanced dementia, we found that sensitivity, or probability of identifying a real behavior change, was generally low for the staff nurses, ranging between 35 and 65% for the different types of behaviors. Also, additional assessment was felt to be needed for 51% of residents by the staff nurse and for 73% of residents by an expert advanced practice nurse (Kovach et al. 2011).

In a study of comorbid problems developing in nursing home residents with advanced dementia, we found a high prevalence of pain and delayed identification of multiple comorbid problems. Over the 6 weeks of data collection, 34 of 65 residents (52%) experienced new pain or exacerbations of chronic pain (musculoskeletal  =  20; cancer pain  =  4; gastrointestinal pain  =  1). Of the 149 new physical problems that developed over 6 weeks, there were additional problems that may have been associated with pain or other uncomfortable symptoms (urinary tract infection  =  10; pneumonia  =  9; skin infection  =  9; nausea, vomiting, diarrhea  =  8; constipation  =  6; skin infection  =  6; leg edema  =  5; upper respiratory infection  =  5; conjunctivitis  =  1) (Kovach et al. 2010). The days from symptom presentation to diagnosis ranged from <1 to 29 days (median  =  4). In this study, a 1 unit decrease in nurse assessment skill was associated with a 54% increase in the time to identify new physical problems (p  <  0.001). Residents without specific physical symptoms had 127% longer times to have their new physical problems identified (p  =  0.009).

One critical problem associated with the underassessment and undertreatment of pain in this population are the difficulties distinguishing pain from other etiologies. We will report here two case studies from the nursing home study of comorbid problems that highlight how treatment can go awry.


Case A


A 97-year-old severely demented female on day 1 of data collection was yelling out with movement during care activities or transfer from the bed to wheelchair. She had been in the nursing home 9 months, was nonambulatory, had limited ability to verbally communicate, and her bilateral knee pain was well controlled with scheduled hydrocodone/acetaminophen. She also received scheduled lorazepam for anxiety. Multiple nurse assessments revealed full range of motion to her lower extremities and she denied pain. In addition to yelling, “help me,” “No, No No” or “ooh, ooh ooh,” when approached or moved, she began to be resistive to care and looked very frightened when approached. The staff interpreted this change in behavior as anxiety and responded by approaching care slowly and explaining what was being done and the reason for the care. She was provided positive verbal feedback every time she was “cooperative with cares” and was frequently reassured that “she will be all right and not fall” when transferred. On day 13 of data collection, when asked if she had pain she responded “yes” and touched her upper left leg. She was treated with her scheduled hydrocodone/acetaminophen and positive reinforcement for being cooperative. On day 21, the timing of her scheduled hydrocodone/acetaminophen and lorazepam were changed to 1 h before morning care was delivered, even though she was again denying any pain. On day 22, when asked about pain she pointed to her left leg and when the right leg was touched she yells out. On day 23, an X-ray revealed a left intertrochanteric fracture.


Case B


A 91-year-old moderately demented female with a pleasant demeanor, and persistently smiling countenance had been in the nursing home 57 months, was ambulatory, and retained the ability to verbally communicate regarding her back pain. Her back pain was well controlled with scheduled acetaminophen and as needed tramadol. On day 8 she verbally complained about hemorrhoid pain and was treated with medication and a supportive cushion. She presented on day 11 of data collection with a clear change in condition. Though she continued to smile, she became withdrawn, refused meals, and spit out her medications, including her oral analgesics. This behavior continued and she started “spitting out yellow phlegm.” Multiple checks of vital signs were normal, she was afebrile, her lungs were clear, and she had no cough. On day 14 she fell and on day 15 she was restless all night, was spitting up larger amounts of “yellow phlegm.” While continuing to smile, she began to grab staff clothing and jab at them. On day 18, she complained of fatigue, refused to open her mouth and did not complain of pain. A nurse looked into her mouth and multiple “pus pockets” were noted. She was started on an antibiotic. On day 19 she complained of “hurting all over” was very restless and stated “I can’t swallow.” Her daughter ordered hospice care and all scheduled medications were discontinued. On day 22, she was seen by a dentist who diagnosed an acute abscess of the mandibular anterior area that was tender to the touch. She was started on antibiotic and opioid injections, clonazepam orally disintegrating tablets and viscous lidocaine for the jawline. On day 23, she was much weaker and on day 25, she died.

In Case A the resident’s behavioral symptoms were misinterpreted as anxiety and paranoia rather than as the symptom of pain. Caregivers inadvertently treated her anxiety rather than discovering the etiology underlying the behavior. Her history of anxiety probably contributed to this misinterpretation as well as her inability to verbally communicate. Since she had a history of bilateral knee pain, staff focused on physical assessments on the knees and may not have been alarmed by some pain behaviors associated with movement. Since the pain behaviors were present on the first day of data collection it is still unclear how long she had pain from the hip fracture. It was not until day 22 when she clearly pointed to her left leg when asked about pain and yelled out when touched that an X-ray was ordered. This case highlights some of the challenges in weighing the physical discomfort, psychological stress, and costs of diagnostic tests for people with advanced dementia against the potential for identifying and treating conditions that will improve comfort and quality of life.

In Case B, the staff were able to identify an abrupt change in condition. However, pretty clear cues such as stopping eating, refusing medications, and spitting up yellow phlegm were not followed up with a thorough enough assessment. Assessments focused on possible respiratory or urinary tract infections and no one looked into her mouth until 1 week after the symptoms started. This case also highlights how the tendency for older adults to have a blunted fever response complicates the diagnosis of infection. The resident’s pleasant demeanor and persistently smiling countenance may have also contributed to the delayed diagnosis. Research has shown that those residents with more disruptive behaviors such as calling out verbally and physical agitation receive more assessment and treatment than those who are more passive and quiet (Kovach et al. 2006a, b). This case also points to the fact that just because a demented person can consistently verbally communicate some symptom such as back and hemorrhoid pain. Clinicians and caregivers cannot assume that verbal communication will occur for other pain etiologies.



Differentiation of Pain from Other Etiologies: Use of the Serial Trial Intervention (STI)


Since behaviors associated with pain in people with dementia may also indicate other physical or psychosocial unmet needs, the use of a differential assessment and treatment protocol can help to identify the person’s unmet need and target treatment more appropriately. The Serial Trial Intervention (STI), developed by our team, was designed for this purpose. The STI is designed to help people in the middle or late stages of dementia. For these people who may be losing their verbal skills and cannot tell you there is a problem, changes in behavior are the only indications that something is wrong. Failure to meet their needs can also have many negative consequences including discomfort for the person, agitated behavior, hospitalizations, resistiveness to care, staff frustration, and death. The STI will be described followed by research results testing use of the STI.

The five steps of the STI are listed in Fig. 10.1. Following identification of behavior change, two levels of targeted assessment and treatment are used. If those steps are not successful in uncovering the problem and successfully treating the person, analgesics and possibly a psychotropic medication are used during Steps 3, 4 and 5. The STI allows assessments and treatments to be customized to the individual’s specific health history and current symptoms and needs. Because many nurses working in nursing homes are practical nurses who have had more limited background education in assessment and pathophysiology, providing extra training to these staff or setting up a system in which a nurse with more education completes assessments is recommended. The main components of our training program are:

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Fig. 10.1
©Christine R. Kovach, University of Wisconsin-Milwaukee




  • Educate all staff about dementia, pain, and behaviors.


  • Teach comprehensive physical assessment skills to the nurses.


  • Enhance pain assessment and management.


  • Teach assessment of environmental stressors, psychological and social unmet needs, and the need for balanced stimulation and retreat.


  • Instruct staff on how to use the STI (http://​www.​ageandcommunity.​org/​).

We recommend assessing for both pain as well as other changes in behavior using an explicit schedule and procedures for the nurse and ancillary staff to follow. Passive behaviors are often overlooked and may occur when there is pain or another unmet need (Colling 2000). Changes in eating, sleeping, and functional status may indicate pain or other physical or psychosocial problems. We have also found that some people with dementia who have pain will attempt to get out of bed, out of their chair, or off the unit. We have labeled this behavior “exiting” and believe it may be an attempt to get away from their pain. When the person’s pain is treated, the exiting behavior ceases (Kovach et al. 2000). When a resident has a change in behavior that is not effectively treated through basic care provided by the ancillary staff, the STI should be initiated by the nurse. Steps of the STI are outlined in Table 10.2 and Fig. 10.1. Continued movement through steps of the STI is based on the results of assessments and failure of symptoms to improve within a reasonable time frame for that treatment. For example, one would expect to see positive response to an analgesic within a shorter time frame than an antibiotic or an antidepressant. Responses to nonpharmacological comfort interventions such as repositioning, distraction, or massage can be evaluated in shorter time frames. If the symptoms continue after completing all five steps, the process is repeated.


Table 10.2
Description of steps of the serial trial intervention

















Identify behavioral symptoms by using an explicit schedule and procedures for the nurse and ancillary staff. When a resident exhibits changes in behavior that are not effectively treated through basic care provided by the ancillary staff the STI is initiated by the nurse. The STI process is stopped when behavioral symptoms decrease by 50% or more. Continued movement through steps of the STI is based on results of assessments and decreases in symptoms by less than 50% in time frames that have been established for specified treatments. If the behavioral symptom continues after completing all five steps, the process is repeated.

STI Step1 Perform physical needs assessment that focuses on conditions associated with discomfort. If assessment is positive, a targeted intervention is implemented or the appropriate discipline is consulted to begin treatment. If the assessment is negative, or if treatment fails to decrease symptoms by at least 50%, the nurse moves to the next step

STI Step 2 Perform affective needs assessment that focuses on needs of people with dementia: (a) environmental stress threshold not exceeded (Wahl and Weisman 2003); (b) balance between sensory stimulating and sensory calming activity throughout the day (Kovach et al. 2004); (c) receipt of meaningful human interaction each day (Taft et al. 1997). If assessment is positive, a targeted intervention is implemented or the appropriate discipline is consulted to begin treatment. If the assessment is negative, or if treatment fails to decrease symptoms by at least 50%, the nurse moves to the next step

STI Step 3 Administer a trial of nonpharmacological comfort treatment(s). Treatments used are tailored to the person and the situation, and are based on a list of psychosocial and environmental treatments that have been associated with decreasing agitated behaviors. If a trial of nonpharmacological comfort treatment(s) does not ameliorate behaviors in a time frame likely to show outcomes, the nurse should move to step 4

STI Step 4 Administer a trial of analgesics by either administering the prescribed “as needed” (i.e., pro re nata [prn]) analgesic or obtaining orders to escalate a current analgesic. If there is not a response to a trial course of analgesics, consider consultation regarding further escalation or proceed to the next step

STI Step 5 Consult with other disciplines or practitioners (i.e., the nurse practitioner, physician, hospice, geropsychiatry). A trial of prescribed psychotropic drug may be administered in this step, if the behavior continues and the nurse and prescriber carefully considers alternatives and weighs the potential for side affects against the comfort needs of the resident


2006 The Author. Copyright held by Christine Kovach


Step 1: Physical Assessment


The Step 1 physical needs assessment should focus on conditions associated with pain as well as common conditions seen in this age group. Knowing the resident’s clinical history can also aid in targeting the assessment. Common infections in this population are pneumonia, urinary tract infections, and skin and soft tissue infections (Gavazzi and Krause 2002). Undertreated or untreated musculoskeletal or neuropathic pain is frequently uncovered during this physical assessment. In our training program at the University of Wisconsin-Milwaukee, in additional to teaching registered and practical nurses assessment of musculoskeletal pain and common infections, we emphasize training nurses in the assessment of neuropathic pain, symptoms of arterial and venous insufficiency, abnormal lung sounds, and common skin disorders. If the assessment is positive, a targeted intervention is implemented or the appropriate health care provider is consulted to decide on a possible treatment. Since the care of those with advanced illness involves considering the benefits and risks of treatment in light of overall goals of an individual, it is not expected that each new physical assessment change will be treated.


Step 2: Assessing Environmental Stress


Dementia decreases the threshold for tolerating stress from the environment (Hall and Buckwalter 1987; Lawton 1986, See also Stoney 2011). Response to excessive environmental stress is agitation and decreased function (Beck et al. 2002). Environmental stress may come from auditory, visual, tactile, taste, or olfactory stimuli. As outlined in Table 10.1, Step 2 includes an assessment of environmental stress, including whether there is a balance between sensory-stimulating and sensory-calming activity throughout the day, and whether the person has received therapeutic human interaction each day.

People with dementia are also vulnerable to both under stimulation and stimulus inundation (Kovach 2000; Kovach and Schlidt 2001; Kovach and Wells 2002). In a randomized controlled trial with 78 participants, nursing home residents with dementia who received an intervention that controlled the person’s daily activity schedule so that there was a balance between the person’s high-arousal and low-arousal states had significantly less agitation than the control group (Kovach et al. 2004).

Step 2 of the STI also directs the nurse to determine if each person is receiving at least 10 min of meaningful human interaction a minimum of 2 times each day. For the purpose of meeting an individual’s need for meaningful human interaction, we stipulate that the one-on-one interaction must have the central purpose of making a therapeutic human connection. Chatting calmly with the person while providing a bath may be quite therapeutic. However, this would not meet the requirement since the central purpose is not to make a therapeutic human connection. Examples of therapeutic human connections are socializing, providing a hand massage, and reminiscing. Individual preferences are determined whenever possible and needed interactions are “ordered” by the nurse and completion is recorded along with other treatments given in the medical record.


Step 3: Nonpharmacological Comfort Treatments


In Step 3 a trial of nonpharmacological comfort treatments, tailored to the individual and the situation, is given to the patient. We provide staff with the list of common psychosocial and environmental treatments (see also Table 10.3). These treatments have been empirically or anecdotally associated with decreasing agitated and pain behaviors, are low cost, and most can be completed in 10 min or less. All of these nonpharmacological comfort interventions require additional testing for efficacy.


Table 10.3
Psychosocial and environmental treatments associated with decreasing agitated and pain behaviors in people with dementia































































Nonpharmacolgical treatments

Providing a rummage box

Exercise group

Assisting person up to wheelchair

Ambulating with staff

Cooking group

Providing a basket of laundry for the person to fold

Scrubbing vegetables

1:1 visiting/therapeutic communication

Reminiscence activity

Reading poetry

Providing magazines to browse

Doing a spiritual intervention

Aromatherapy

Pet therapy

Music therapy

Baking bread

Holding a “coffee club”

Gardening

Art activity

Changing environment/move to a different room

Watching television

Watching a bird aviary or fish tank

Viewing a film

Providing a quiet environment/quiet time

Cueing/redirecting

Hugging

Massaging hands or feet

Providing a warm foot soak

Providing a sweater or blanket

Providing fluids

Providing a snack

Assisting person to the bathroom

Providing time for a nap

Providing personal hygiene assistance

Applying a heating pad
 


Note: many of these items listed take less than 10 min to complete


Step 4: Administration of Analgesics


Step 4 involves the administration of the resident’s prescribed “as needed” (i.e., pro re nata [prn]) analgesic, or obtaining orders to escalate a current analgesic. If there is not a response to a trial course of analgesics, nurses are encouraged to consult with the prescriber or supervisor regarding the need for further escalation of analgesic drug or dose. Step 5 involves consulting with other disciplines or practitioners (e.g., nurse practitioner, physician, hospice, geropsychiatry) and possibly administering a trial of a prescribed psychotropic drug. The potential side effects of psychotropic drugs must be weighed against using alternative nonpharmacological treatments and attaining comfort for the resident. A consensus statement on treatment options for dementia-related symptoms of severe agitation and aggression, published in 2008, provides a helpful overview of potential risks and indications for use (Salzman et al. 2008).

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Oct 16, 2016 | Posted by in PAIN MEDICINE | Comments Off on Assessing Pain and Unmet Need in Patients with Advanced Dementia: The Role of the Serial Trial Intervention (STI)

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