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Wednesday, December 14, 2016

Sundowner's Syndrome: Causes, Symptoms, and Treatments

December 14, 2016

People with dementia may find late afternoon and evening a particularly difficult time.

A person with sundowner's syndrome experiences increased episodes of confusion, agitation, and activity as the day progresses to night. There may be agitation and personality changes that are dramatically unlike the person's normal behavior.
This can be frightening for the individual and their caregiver. 
While most people are "winding down" or relaxing as the day goes on, those with sundowner's syndrome become increasingly active.
Sundowner's syndrome is often associated with dementia, a condition that affects a person's memory, personality, and their ability to reason.
There are nonmedical ways to reduce the incidence of sundowner's syndrome. Prescription medications can enhance sleep, and they may also reduce symptoms.
Treatment aims to ensure the person with sundowner's does not experience severe fear or accidentally injure themselves.

Causes of sundowner's syndrome

As the day goes on, regular activities can become tiring for a person with dementia. By late afternoon, the person can be totally exhausted. This exhaustion may progress through the evening.
Dementia can lead to confusion and difficulty with processing and reasoning. It can also affect the internal body clock that recognizes when it is daytime and nighttime and, therefore, time to sleep.
If the body clock is not working properly, sleeping and waking patterns may be disrupted, and they can cause the confusion and exhaustion that feature in sundowner's. 
Other events that may lead to symptoms include:
  • Hospitalization or moving to a new, unfamiliar place
  • Medications wearing off as the day goes on
  • Transitions from day to night, reminding a person of when they were younger and expecting a spouse or children to come home
Hormonal imbalances may also play a role.

Risk factors

Some risk factors have been associated with sundowner's syndrome.
One is Alzheimer's disease. Around 20 percent of people with Alzheimer's will experience some degree of sundowner's syndrome.
A person with a history of alcohol or substance abuse also has a higher chance of experiencing sundowner's, often with more severe symptoms.
Some behavioral cues are linked to a higher risk of symptoms.
These cues include:
  • Changes to day and night experiences, such as poor sleep
  • Increased stress, such as after visiting an unfamiliar place or going to see a doctor
  • Low lighting and shadows that can increase paranoia and fear
  • Having a frustrated and exhausted caregiver
  • Difficulty separating dreams from reality

Symptoms of sundowner's syndrome



These include: 

  • Confusion as to where or who a person is
  • Mental confusion that will not respond to reasoning
  • Paranoia
  • Sleep disturbances, such as inability to sleep at night, possibly leading to excessive sleep during the day
  • Sudden changes in behavior unexplained by any other trigger
  • Trouble speaking clearly
  • Trouble thinking clearly
  • Visual hallucinations
  • Wandering
  • Yelling or aggressive behavior
Those with sundowner's syndrome have usually been diagnosed with some form of dementia, such as Alzheimer's disease. However, not everyone with Alzheimer's disease or dementia will have sundowner's syndrome.

Complications

Sundowner's syndrome can increase the likelihood of injury in a person with dementia. They may fall or remove a necessary medical device.
Sometimes, the person may become violent or highly agitated, potentially resulting in injury to themselves or others.
Research published in Psychiatry Investigation suggests sundowner's syndrome may speed up the decline in mental function in a person with Alzheimer's disease.

When to see a doctor

Sometimes it can be difficult to distinguish between sundowner's syndrome and delirium that results from another condition.
In an older person, an underlying infection, such as a urinary tract infection, can cause symptoms similar to those of sundowner's syndrome.
Changes to medications or adding new medications can have a similar effect.
If the person starts behaving in an unusual way during the evening, a caregiver should seek medical attention. 
No definitive test can detect sundowner's syndrome. A doctor will ask a caregiver about symptoms and will try to rule out other potential causes, such as an infection or medication change. 

Lifestyle tips for sundowner's syndrome

It can be difficult for a caregiver to see the changes in personality when the person they care for has sundowner's, but there are some ways to alleviate symptoms and to help a confused person to remain calmSundowner's is largely triggered by changes in light. Bright surroundings indicate daytime, while dark ones usually indicate night.
It is the fading light and the onset of nighttime that can trigger the symptoms of sundowner's, so it is important to get lighting right.
People should keep the lights bright as the daylight fades and then use nightlights or low-light lamps throughout the night. These low-level lights will help a person know where they are if they wake up in the night.
There are a number of other ways to help a person with sundowner's syndrome to stay oriented to their surroundings.
Examples include:
Engaging in activity can help to establish 
a routine with good sleep patterns.
  • A vision check: This is important to ensure the person is still seeing clearly. Someone who cannot see shapes clearly is more likely to experience visual hallucinations.
  • Sleeping and waking schedule: Maintaining regular waking and sleeping times can increase familiarity and enhance sleeping. A person with sundowner's should be encouraged to have a mid-morning nap, but not to have another nap before bedtime.
  • Eating regularly: Ensuring meals are eaten at similar times each day can help. During the evening, it is better to avoid items that can disturb sleep, such as nicotine, caffeine, alcohol, large meals, and excessive quantities of sweets.
  • Activities: Engaging in activities to redirect the person's thinking may reduce confusion or uncertainty. Examples include folding napkins or laundry, watching television, or listening to music. Activities and outings such as medical appointments, bathing, or other errands can aid sleep at night.
  • Avoid disruption: Caregivers should try to avoid triggers known to contribute to symptoms. Events that can distract a routine or disrupt the sense of calm include loud television, boisterous children, or loud music.
  • Music: Many older people with sundowner's syndrome enjoy listening to soft music from a favorite era. The music is familiar and many elderly people with sundowner's may find it soothing.
  • Declutter: Keeping a house tidy and free of clutter can prevent confusion and reduce the risk of injury.
If the individual is upset or confused, a caregiver can help by doing the following:
  • Approach them in a calm manner
  • Refrain from arguing, but calmly and gently remind them of the time
  • Reassure them that everything is okay
  • Allow them to pace or do whatever is necessary until the episode starts to subside
    • Refrain from physically restraining them 
    Medications for sundowner's syndrome

    If lifestyle-related tips do not work, medications may help to reduce any agitation and aggressive behavior.

    Examples include:
    Benzodiazepines, such as Xanax, Valium, and Restoril, to reduce anxiety and promote sleep
    Hypnotics to promote sleep, including eszopiclone (Lunesta) or zolpidem (Ambien)
    Antipsychotics, such as haloperidol (Haldol) and droperidol (Droleptan), to reduce hallucinations and agitation

    Doctors may be reluctant to use antipsychotics in older adults as some studies have suggested that they may increase the risk of death in older people with dementia.
    Taking a medication does not guarantee that symptoms will stop. Some medications may work for a short time before the symptoms come back.
    Some people may experience adverse effects from the drugs that lead to a decline in other aspects of their health. A caregiver should discuss potential side effects with a doctor or pharmacist.
    Sometimes, a doctor will recommend light therapy. This involves exposing a person with sundowner's to a bright fluorescent lamp for an hour or two in the morning. Some studies have shown that exposure to this bright light early in the day can reduce sundowner's symptoms later in the evening.
    It is important that both a person with sundowners and their caregivers get enough rest and support.
    A support group may be able to provide support to caregivers. Churches and local organizations may offer a "Senior's Day Out" that allows caregivers time to rest and recharge.
    If a person is having difficulty managing the symptoms associated with the condition, they should contact their loved one's doctor.
    Written by Rachel Nall RN, BSN, CCRN

    http://www.medicalnewstoday.com/articles/314685.php

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