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RESTLESS LEGS SYNDROME:<br />
Diagnosis and Treatment Strategies for the Primary Care Provider<br />
Consensus Re<strong>com</strong>mendations From an Expert Panel Vol 5(2): May 2004<br />
CME Overview<br />
Learning Objectives<br />
Upon <strong>com</strong>pletion of this activity, participants should be able to:<br />
✦ Elicit pertinent information that can aid in diagnosis of<br />
restless <strong>legs</strong> <strong>syndrome</strong> (RLS) when taking a patient’s history.<br />
✦ Diagnose RLS using the 4 essential diagnostic criteria.<br />
✦ Appropriately prescribe and titrate pharmacologic agents<br />
to treat RLS based on efficacy and tolerability profiles.<br />
✦ Implement nonpharmacologic strategies to manage RLS.<br />
✦ Seek referral to or consultation with a specialist in<br />
appropriate RLS cases.<br />
✦ Educate patients on RLS and provide sources for additional<br />
information.<br />
Credit Designation<br />
Scienta Healthcare Education ® designates this educational activity for<br />
a maximum of 1.5 category 1 credits toward the AMA Physician’s<br />
Recognition Award. Each physician should claim only those credits that<br />
he/she actually spent in the activity. Expiration: December 31, 2005.<br />
This activity has been reviewed and is acceptable for up to 1.5<br />
Prescribed credits by the American Academy of Family Physicians. 1.5 of<br />
these credits conform to AAFP criteria for evidence-based CME clinical<br />
content. Term of approval is for one year from beginning distribution date<br />
of May 15, 2004 with option for yearly renewal. When reporting CME<br />
credit, AAFP members should report total Prescribed and Elective credit<br />
earned for this activity. It is not necessary for members to label credit as<br />
evidence-based CME Prescribed or Elective for CME reporting purposes.<br />
Accreditation<br />
Scienta Healthcare Education ® is accredited by the Accreditation<br />
Council for Continuing Medical Education (ACCME) to sponsor continuing<br />
medical education for physicians.<br />
Sponsorship<br />
Cosponsored by the Illinois Academy of Family Physicians/Family<br />
Practice Education Network and Scienta Healthcare Education ® .<br />
EXPERT PANEL<br />
Charles Adler, MD, PhD<br />
Professor of Neurology<br />
Chair, Division of Movement Disorders<br />
Mayo Clinic College of Medicine and<br />
Mayo Clinic, Scottsdale<br />
Scottsdale, AZ<br />
Richard Allen, PhD<br />
Research Associate<br />
Department of Neurology<br />
Founder, Johns Hopkins Sleep<br />
Disorders Center<br />
Johns Hopkins Bayview Medical Center<br />
Baltimore, MD<br />
Introduction<br />
W. Lane Edwards, Jr, MSN, ARNP, ANP<br />
Nurse Practitioner, Internal Medicine<br />
Lee Physician Group<br />
Lee Memorial Health System<br />
Fort Myers, FL<br />
Mary P. Ettari, MPH, PA-C<br />
Certified Physician Assistant<br />
Medical Partners of Martin County<br />
Stuart, FL<br />
William G. Ondo, MD<br />
Associate Professor<br />
Department of Neurology<br />
Baylor College of Medicine<br />
Houston, TX<br />
RLS is a clinically significant movement disorder that <strong>com</strong>monly<br />
presents to the primary care provider as a sleep disturbance.<br />
Although the disease was first characterized more than 60 years<br />
ago, current understanding of the diagnosis and treatment of<br />
RLS is based largely on research conducted within the past<br />
decade. 1 The first clinical guidelines for treatment of RLS<br />
were published by the American Academy of Sleep Medicine<br />
in 1999. 2 In 2000, the National Center on Sleep Disorders<br />
Research and Office of Prevention, Education, and Control of<br />
the National Heart, Lung, and Blood Institute published<br />
guidelines for the management of RLS in the primary care<br />
Penny Tenzer, MD<br />
Vice Chair and Residency Program Director<br />
Department of Family Medicine and<br />
Community Health<br />
University of Miami School of Medicine<br />
Miami, FL<br />
Ray Watts, MD<br />
Professor and Chair<br />
Department of Neurology<br />
University of Alabama School of Medicine<br />
Birmingham, AL
setting. 3 The National Institutes of Health, in collaboration<br />
with members of the International <strong>Restless</strong> Legs Syndrome<br />
Study Group, updated RLS diagnostic criteria and established<br />
standardized questions for epidemiological studies of RLS in<br />
2003. 4 Furthermore, the <strong>Restless</strong> Legs Syndrome Foundation<br />
(www.rls.org) has established an online updated medical<br />
bulletin that covers relevant medical issues associated<br />
with RLS.<br />
Despite new guidelines and diagnostic criteria, however, RLS<br />
is not foremost in the minds of most healthcare providers.<br />
Needs assessment data reveal that many primary care<br />
providers remain uninformed about RLS and its treatment. In<br />
2004, the Family Practice Education Network (FPEN), coordinated<br />
by the Illinois Academy of Family Physicians (<strong>IAFP</strong>) and<br />
Scienta Healthcare Education ® , assembled<br />
a panel of experts in the management<br />
of RLS. After reviewing established<br />
guidelines, the current medical<br />
literature, and their own clinical<br />
experiences, the panel formulated<br />
re<strong>com</strong>mendations for primary<br />
care providers regarding RLS<br />
diagnosis and treatment.<br />
Although RLS is <strong>com</strong>monly<br />
encountered in the primary<br />
care setting, it is generally not<br />
a first-line consideration in the<br />
differential diagnosis for sleep<br />
<strong>com</strong>plaints. Thus, it is often inadequately<br />
diagnosed. In some cases, patients<br />
with symptoms of RLS are misdiagnosed with<br />
insomnia or anxiety, resulting in ineffective treatments.<br />
In other cases, RLS patients remain undiagnosed and are<br />
inappropriately referred to a variety of specialists. Accurate<br />
diagnosis and treatment of RLS is further confounded by the<br />
fact that RLS symptoms are difficult to articulate.<br />
Because most RLS sufferers will initially consult a primary<br />
care provider for their symptoms, the primary care provider<br />
has a central role in the diagnosis and treatment of RLS. For<br />
most patients, RLS can be managed effectively in the primary<br />
care setting. Primary care providers’ long-term relationships<br />
with their patients and familiarity in managing multiple<br />
aspects of healthcare uniquely position them to offer unparalleled<br />
patient education and support. These consensus re<strong>com</strong>mendations<br />
will review the current RLS literature, highlight<br />
diagnostic approaches and treatment options, and discuss<br />
how to educate and support RLS patients in the<br />
primary care setting. This guideline offers the healthcare<br />
provider a succinct, stepwise, and proactive strategy to<br />
manage RLS.<br />
2<br />
RLS Epidemiology and Impact<br />
on Quality of Life<br />
Despite being a <strong>com</strong>mon movement disorder and a cause of<br />
sleep loss, RLS is often underdiagnosed. 1,2,5 RLS is the second<br />
or third most <strong>com</strong>mon sleep disorder; although estimates<br />
vary, recent surveys suggest that RLS may affect 10% to<br />
15% of the general population. 5,6 Standardized epidemiological<br />
data are currently in<strong>com</strong>plete, but preliminary surveys indicate<br />
that prevalence increases with age 7 and appears to be higher<br />
among women than men. 7-9 Onset of symptoms can occur at<br />
any age. However, the phenotype in children may differ from<br />
that seen in adults and may be confused with attention<br />
deficit disorder or “growing pains.” RLS is a progressive<br />
disorder, and severity usually increases with age, 10 although<br />
remissions may occur. Diagnosis often occurs during middle<br />
age, when symptoms have progressed sufficiently for<br />
the patient to seek medical advice. Patients whose<br />
symptoms appear before age 45 are more<br />
likely to exhibit a family history of<br />
RLS and experience a more indolent<br />
onset. Those with onset<br />
beyond age 50 often have a<br />
more rapid progression with<br />
age and are less likely to<br />
demonstrate a family history of<br />
the condition. 10<br />
Sleep disturbance is a major<br />
<strong>com</strong>orbidity of RLS and is<br />
often the primary reason that<br />
the patient seeks medical attention.<br />
When severe, RLS produces the<br />
most extreme chronic sleep loss of any<br />
sleep disorder, and severely affected RLS<br />
patients routinely sleep only a few hours per night.<br />
While the severity of symptoms varies widely, RLS may<br />
impact quality of life dramatically, for both patients and their<br />
bed partners. In addition to disrupting sleep, RLS may contribute<br />
to daytime and evening dis<strong>com</strong>fort and an inability to<br />
sit still, thereby affecting activities such as meetings and<br />
airplane rides. Moreover, people with RLS suffer the consequences<br />
of sleep loss, including difficulties with attention<br />
and cognitive focus. Thus, RLS may affect work, social, and<br />
leisure activities.<br />
Primary and Secondary Causes of RLS<br />
Primary Causes. Genetic predisposition appears to be a factor,<br />
particularly for patients with an onset of RLS symptoms<br />
early in life (eg, before age 45). 10-12 Slightly more than half of<br />
reported cases of RLS indicate a familial occurrence of the
disorder, 4 with the presentation following an autosomal dominant<br />
pattern. 13 Several possible loci, including chromosomes<br />
12q 14 and 14q, 13 have been linked to RLS. Analysis of available<br />
studies suggests that a person with RLS is 3 to 6 times more<br />
likely to have a family history of the disorder than a person<br />
who does not have RLS. 4 Environmental factors may also<br />
play a role.<br />
Secondary Causes. Symptoms of RLS may be associated<br />
with or exacerbated by medications 15 or by several secondary<br />
conditions, including iron deficiency, 16,17 pregnancy, 18 end-stage<br />
renal disease, 19 and peripheral neuropathy 20 (see treatment<br />
section for details). Secondary RLS often remits when the<br />
specific secondary condition is resolved, such as through<br />
childbirth 18 or renal transplant. 21<br />
Diagnosing RLS: The 4 Essential Criteria<br />
RLS is characterized by an urge to move the <strong>legs</strong> that is<br />
partially or totally relieved by movement and is often associated<br />
with a series of unpleasant sensory features. Patients with<br />
RLS will often speak of sensations deep within the leg<br />
muscles, described variously as “creepy,” “crawly,” “like<br />
worms or bugs crawling in the muscle,” or “soda bubbling in<br />
the veins.” 4 Although these descriptions may vary, they will<br />
usually be associated with an urge to move. While this<br />
dis<strong>com</strong>fort usually affects both <strong>legs</strong> simultaneously, it may be<br />
unilateral, alternate between the <strong>legs</strong>, or include the arms. 22<br />
Although RLS symptoms vary widely in severity and<br />
frequency (eg, from occasionally to daily), most RLS patients<br />
who seek treatment experience daily or nearly daily symptoms.<br />
Four criteria are essential to diagnose RLS (Table 1). 4 Each<br />
criterion is subsequently described in more detail.<br />
Table 1. The 4 Essential Diagnostic Criteria for RLS*<br />
✓ An urge to move the limbs that is often ac<strong>com</strong>panied<br />
or caused by un<strong>com</strong>fortable or unpleasant sensations<br />
in the <strong>legs</strong><br />
✓ The urge to move or unpleasant sensations begin<br />
or worsen during periods of rest or inactivity<br />
✓ Symptoms may be partially or totally relieved by<br />
movement (eg, walking or stretching), at least for<br />
the duration of the activity<br />
✓ Symptoms either occur exclusively or worsen<br />
during the evening or night<br />
* All must be present for diagnosis.<br />
An urge to move the <strong>legs</strong>, usually ac<strong>com</strong>panied or caused by<br />
un<strong>com</strong>fortable or unpleasant sensations in the <strong>legs</strong>. This is<br />
the key feature of RLS. The urge to move the <strong>legs</strong> may be<br />
present without any clearly identified sensation and may<br />
include the arms. However, RLS is not to be confused with<br />
fidgeting or habitual repetitive movement, such as foot tapping.<br />
The urge to move begins or worsens during periods of rest<br />
or inactivity. Two aspects of rest, physical immobility and<br />
decreased central nervous system activity that supports<br />
alertness, may be implicated in the onset of symptoms. 23 RLS<br />
is not triggered by a specific body position during rest.<br />
However, more restful positions and a longer duration of rest<br />
increase the likelihood of symptoms.<br />
Symptoms may be partially or totally relieved by movement<br />
(eg, walking or stretching), at least for the duration of the<br />
activity. Patients with RLS often describe a rapid relief of<br />
symptoms as a result of movement, although the relief may or<br />
may not be <strong>com</strong>plete. As the disease progresses, the amount<br />
of relief obtained through movement may diminish; more<br />
movement may be required for relief of severe RLS.<br />
Symptoms either occur exclusively or worsen during the<br />
evening or night. Several studies have demonstrated a peak<br />
in RLS restlessness in the hours immediately after<br />
midnight and a nadir in the late morning hours. 24,25 In cases of<br />
severe RLS, dis<strong>com</strong>fort may occur continuously, although<br />
patients will recall nocturnal severity as a feature of an<br />
earlier stage of disease development.<br />
Diagnosing RLS: Asking the Right Questions<br />
Because of the relatively unusual sensations associated with<br />
RLS, many patients have difficulty expressing their symptoms<br />
accurately. As a result of this suboptimal <strong>com</strong>munication,<br />
there is a tendency to diagnose RLS via a process of exclusion,<br />
ie, RLS is diagnosed only after other possibilities have been<br />
disproved. However, this diagnosis-of-exclusion approach<br />
should be abandoned, and the primary care provider must<br />
seek an unequivocal and clear diagnosis of RLS by <strong>com</strong>pleting<br />
a sleep review (Appendix A) with all patients who present with<br />
a sleep <strong>com</strong>plaint. If RLS is suspected, it is essential to ask the<br />
right questions as they apply to the 4 essential RLS diagnostic<br />
criteria (Table 2). Sleep studies are not necessary to diagnose<br />
RLS; patients who answer “yes” to the 4 questions in Table 2<br />
are likely to have RLS. An algorithm for the diagnosis of RLS is<br />
provided in Figure 1.<br />
To assess the severity of RLS, the primary care provider<br />
should consider the frequency and overall severity of the<br />
symptoms. These 2 factors will guide treatment decisions.<br />
It may also be useful to use the International <strong>Restless</strong><br />
Legs Syndrome Study Group Rating Scale 26 prior to and<br />
3
4<br />
Figure 1. Diagnosis Algorithm<br />
Difficulty sleeping and/or daytime sleepiness<br />
Unusual sensations in <strong>legs</strong> relieved<br />
by movement<br />
Painful sensations in <strong>legs</strong> at night<br />
Take history<br />
Take history<br />
Take history<br />
Conduct a sleep review of symptoms to<br />
assess cause (see Appendix A)<br />
Conduct neurologic exam<br />
Are responses suggestive of RLS?<br />
Ask 4 key RLS questions<br />
No Yes<br />
Is there evidence of neuropathy?<br />
No<br />
Yes<br />
Consider other sleep disorders: sleep deprivation,<br />
insomnia, drug-induced insomnia, obstructive<br />
sleep apnea, or circadian rhythm disorder<br />
Did patient answer “yes” to all 4 questions?<br />
Evaluate and treat neuropathy<br />
and ask 4 key RLS questions<br />
Yes<br />
Diagnose RLS and treat using<br />
treatment algorithm
Figure 2. Suggested Treatment Algorithm<br />
Patient diagnosed with RLS<br />
Symptom Profile<br />
Nightly 3-5 times/week
during treatment to evaluate treatment benefit. This wellvalidated<br />
scale has been used in treatment studies, 27 and<br />
up-dated versions of the scale are available online from the<br />
MAPI Research Institute (www.mapi-research-inst.<strong>com</strong>).<br />
RLS and Periodic Limb Movements in Sleep<br />
(PLMS) and Waking (PLMW)<br />
Many RLS patients also experience periodic limb movement<br />
disorder (PLMD), which may be manifested as periodic limb<br />
movements in sleep (PLMS) and in waking (PLMW). 1<br />
Approximately 85% of RLS patients also experience PLMS, 4<br />
and the finding of PLMS supports a diagnosis of RLS. PLMS,<br />
however, also <strong>com</strong>monly occurs independently, especially in<br />
the elderly. Characteristics of PLMS include the following:<br />
6<br />
Table 2. Key Questions for Patients<br />
Who May Have RLS<br />
✦ Do you feel an urge to move your <strong>legs</strong>, usually<br />
ac<strong>com</strong>panied or caused by un<strong>com</strong>fortable and<br />
unpleasant sensations in the <strong>legs</strong>?<br />
✦ Does this urge to move begin or worsen when you<br />
lie down, rest, or are inactive?<br />
✦ Is the urge to move partially or totally relieved by walking<br />
or stretching, as long as the movement continues?<br />
✦ Are your symptoms worse in the evening or at night,<br />
or do they only occur during the evening or the night?<br />
✦ Involuntary, stereotypic, slow leg and hip movements<br />
(0.5 to 5 seconds in duration) while asleep<br />
✦ Movements occur periodically (usually every 20 to<br />
40 seconds)<br />
✦ Movements can be associated with awakenings<br />
and arousal<br />
✦ PLMS are nonspecific and may occur in isolation<br />
or with narcolepsy, REM (rapid eye movement)<br />
sleep behavior disorder, or sleep apnea<br />
PLMW may also occur for RLS patients. These movements<br />
are less <strong>com</strong>mon for elderly patients and are therefore more<br />
specific for the diagnosis of RLS. However, the sensitivity of this<br />
measure is not known. PLMW may occur during the night, when<br />
the patient lies awake in bed, or in the evening, when the patient<br />
is lying down or seated with <strong>legs</strong> outstretched.<br />
Treatment Options<br />
Iron Supplementation. Patients with RLS often have a<br />
decreased level of ferritin and an elevated level of transferrin<br />
in their cerebrospinal fluid. 17 Furthermore, a low serum<br />
ferritin level (
These dopaminergic agents may be recognized by primary<br />
care providers as the gold standard for treatment of<br />
Parkinson’s disease, in which relatively large doses are<br />
administered to control motor abnormalities caused by loss<br />
of nigrostriatal dopaminergic neurons. In contrast, relatively<br />
small doses of these agents are used to treat RLS, thus minimizing<br />
the side effects. It is therefore important that primary<br />
care providers not base their decisions to use these agents<br />
for RLS solely on their prior experience using them for<br />
Parkinson’s disease.<br />
Long-term use of levodopa, and possibly the dopamine agonists,<br />
promotes augmentation of RLS symptoms. With augmentation,<br />
symptoms begin to appear progressively earlier in<br />
the day and may be<strong>com</strong>e more severe. Augmentation has<br />
been reported in approximately 80% of patients who take levodopa,<br />
31 although the process appears to be associated<br />
much less frequently with dopamine agonists. 27, 32-34 It must be<br />
noted, however, that the dopamine agonists have not been<br />
investigated as fully as levodopa in long-term clinical trials.<br />
Table 3. Drugs Used to Treat RLS 28<br />
Levodopa’s rapid onset of action (15 to 20 minutes) makes it<br />
ideal for intermittent usage when symptoms occur only<br />
occasionally, as augmentation is unlikely in this scenario. For<br />
patients with daily symptoms, however, a dopamine agonist<br />
is suggested as first-line treatment.<br />
Sedative-Hypnotic Agents. This class of drugs represents an<br />
option if dopaminergic agents are unsuitable. However, at<br />
present, there are few data to evaluate the efficacy of these<br />
agents for RLS. Sedative-hypnotic agents may be used in <strong>com</strong>bination<br />
with the aforementioned agents if sleep initiation<br />
remains problematic despite relief of the sensory symptoms of<br />
RLS. It must be noted that these agents mask the symptoms<br />
of RLS but do not treat the underlying causes of the disease.<br />
There are no data available that demonstrate augmentation<br />
with sedative-hypnotic agents, although tolerance may<br />
develop. The potential for abuse, morning drowsiness, and an<br />
increased risk of falls during the night should be considered<br />
when prescribing these medications for RLS.<br />
Agent Initial Dose Re<strong>com</strong>mended Maximum Daily Dose Serum Half-life Common Side Effects<br />
(at levels indicated for<br />
Parkinson’s Disease)<br />
Dopaminergic Agents<br />
Levodopa (Dopar ® ,<br />
Larodopa ® )<br />
Ropinirole*<br />
(Requip ® )<br />
Pergolide*<br />
(Permax ® )<br />
Pramipexole*<br />
(Mirapex ® )<br />
Sedative-Hypnotic Agents<br />
Clonazepam<br />
(Klonopin ® )<br />
Oxazepam<br />
(Serax ® )<br />
Zaleplon<br />
(Sonata ® )<br />
Zolpidem<br />
(Ambien ® )<br />
Triazolam<br />
(Halcion ® )<br />
50 mg<br />
0.25 mg<br />
0.025 mg<br />
0.125 mg<br />
0.25 mg<br />
10 mg<br />
5 mg<br />
5 mg<br />
0.125 mg<br />
200 mg at bedtime<br />
4 mg in divided doses (evening and<br />
bedtime)<br />
0.5 mg in divided doses (evening and<br />
bedtime)<br />
1.5 mg in divided doses (evening and<br />
bedtime)<br />
2 mg at bedtime<br />
40 mg at bedtime<br />
20 mg at bedtime<br />
20 mg at bedtime<br />
0.5 mg at bedtime<br />
1.5-2 h<br />
6-8 h †<br />
2-16 h<br />
8-10 h ‡<br />
30-40 h<br />
5-10 h<br />
1 h †<br />
1.6 h †<br />
2-4 h<br />
Nausea, vomiting, augmentation<br />
of symptoms, sedation<br />
Same as for levodopa, plus<br />
nasal congestion and fluid<br />
retention<br />
Same as for ropinirole<br />
Same as for ropinirole<br />
Tolerance, sedation<br />
Tolerance, sedation<br />
Tolerance, sedation<br />
Tolerance, sedation<br />
Tolerance, sedation<br />
7
Anticonvulsants. Two agents, carbamazepine 35 and<br />
gabapentin, 36 have shown efficacy for RLS treatment.<br />
Although gabapentin has not been evaluated for long-term<br />
<strong>com</strong>plications such as augmentation, the Expert Panel re<strong>com</strong>mends<br />
it as the preferred anticonvulsant agent for its tolerability<br />
and safety. The Expert Panel also concurred that<br />
gabapentin is a suitable choice for second- or third-line therapy<br />
and can be considered as a first-line agent for patients<br />
who report pain as a major symptom of RLS.<br />
Opioids. Opioids are effective second- or third-line agents for<br />
RLS patients who report frequent or nightly symptoms. They<br />
can also be considered as a first-line treatment for patients<br />
who report pain as a symptom of their RLS. Dependence and<br />
8<br />
Table 3. Drugs Used to Treat RLS 28 (cont)<br />
tolerance may occur with opiate use, but there are no data<br />
available that demonstrate augmentation with these agents.<br />
Nonpharmacologic Strategies. In contrast to most other<br />
sleep disorders, RLS does not respond to typical sleep<br />
hygiene. Instead, the condition may be resolved, at least temporarily,<br />
by intense tactile stimulation or mental activity.<br />
Lifestyle patterns that promote engrossing mental or physical<br />
activity during daytime hours may reduce the need for medicine<br />
until late evening. Other strategies, such as leg vibration,<br />
massage, and hot baths, may also help alleviate symptoms.<br />
In some cases, the avoidance of caffeine and alcohol<br />
may also help to reduce symptoms.<br />
Agent<br />
Anticonvulsants<br />
Initial Dose Re<strong>com</strong>mended Maximum Daily Dose Serum Half-life Common Side Effects<br />
(at levels indicated for<br />
Parkinson’s Disease)<br />
Gabapentin<br />
(Neurontin ® )<br />
Carbamazepine §<br />
(Tegretol ® )<br />
Opioids<br />
Propoxyphene<br />
(Darvon ® )<br />
Hydrocodone<br />
(Vicodin ® )<br />
Codeine<br />
Tramadol<br />
(Ultram ® )<br />
Oxycodone<br />
(OxyContin ® )<br />
Oxycodone-XR<br />
Methadone*<br />
(Dolophine ® ,<br />
Methadose ® )<br />
Morphine<br />
Sulphate-XR<br />
(RoxanolTM )<br />
100-300 mg §<br />
200 mg<br />
100-200 mg<br />
5 mg<br />
30 mg<br />
50 mg<br />
5 mg<br />
10 mg<br />
2.5 mg<br />
15 mg<br />
3600 mg in 2-3 divided doses §<br />
800 mg in 2-3 divided doses<br />
600 mg in 2-3 divided doses<br />
20-30 mg in 2-3 divided doses<br />
180 mg in 2-3 divided doses<br />
300 mg in 2-3 divided doses<br />
20-30 mg in 2-3 divided doses<br />
20-30 mg in 2-3 divided doses<br />
20 mg in 2 divided doses<br />
30-45 mg in 2-3 divided doses<br />
* Administer at least 2 h before bedtime or anticipated onset of symptoms.<br />
† Possibly longer with hepatic dysfunction.<br />
‡ Possibly longer with renal dysfunction.<br />
§ Expert Panel re<strong>com</strong>mendation.<br />
Adapted with permission in 2004 from Earley CJ. Clinical practice: restless <strong>legs</strong> <strong>syndrome</strong>. N Engl J Med. 2003;348:2103-2109.<br />
Copyright © 2003, Massachusetts Medical Society. All rights reserved.<br />
5-7 h ‡<br />
6 h<br />
6-12 h †<br />
3 h †<br />
2.5-3 h †<br />
5-8 h †‡<br />
3 h ‡<br />
12 h ‡<br />
16-22 h †<br />
4 h †<br />
Sedation, dizziness, fatigue,<br />
ataxia, somnolence<br />
Hyponatremia, sedation, liver<br />
function test abnormalities<br />
Sedation, pruritis, constipation,<br />
nausea, dry mouth,<br />
dependence<br />
Same as for propoxyphene<br />
Same as for propoxyphene<br />
Same as for propoxyphene<br />
and augmentation<br />
Same as for propoxyphene<br />
Same as for propoxyphene<br />
Same as for propoxyphene<br />
Same as for propoxyphene
Medications That Exacerbate RLS. Dopamine antagonists<br />
(eg, antipsychotics, emetics, gastric-motility agents) and<br />
several <strong>com</strong>mon over-the-counter medications may exacerbate<br />
RLS symptoms. A list of medications that may cause or<br />
exacerbate RLS is provided in Table 4.<br />
Table 4. Medications That May Cause or<br />
Exacerbate RLS<br />
✦ Antihistamines<br />
✦ Dopamine antagonists (including nausea medications)<br />
✦ Tricyclic antidepressants<br />
✦ Lithium<br />
✦ Selective serotonin reuptake inhibitors<br />
Dosing and Titrating Drugs for RLS<br />
Because there are few formal data and no published titration<br />
guidelines for RLS medications, the primary care<br />
provider must design an individual treatment regimen for<br />
each RLS patient. However, a few guiding principles can be<br />
employed. Symptoms should be treated as necessary, eg,<br />
nightly symptoms may require daily treatment, whereas<br />
intermittent symptoms should be treated as often as is necessary.<br />
Dosing should <strong>com</strong>mence 1 to 2 hours before the<br />
anticipated onset of symptoms. Timing of subsequent doses<br />
to ensure coverage throughout the night should be based on<br />
the half-life of the selected agent. Beginning with the initial<br />
dose (Table 3), a medication should be titrated until symp-<br />
toms remit or the maximum daily dose is reached. The<br />
effects of these drugs on RLS are almost immediate, so the<br />
efficacy of a dosing regimen can usually be evaluated within<br />
several days. Gradual upward titration of the dose will<br />
therefore allow the primary care provider to assess<br />
response. The International <strong>Restless</strong> Legs Syndrome Study<br />
Group Rating Scale may be used to establish the relative<br />
success of a dosing schedule.<br />
Medications should be rotated in patients who do not<br />
respond to the first-line agent at its maximal daily dose. If<br />
monotherapy is not <strong>com</strong>pletely successful, the healthcare<br />
provider can also consider <strong>com</strong>bining drugs from the different<br />
classes of agents. Any patient whose symptoms do not<br />
remit after several agents have been administered at their<br />
maximal daily doses should be referred to a neurologist.<br />
Educating Patients About RLS<br />
Because of the unusual symptoms of RLS and potential fears<br />
of Parkinson’s disease, many patients with RLS feel uneasy<br />
when seeking treatment. As a result, the healthcare provider<br />
should educate the patient about the etiology of RLS. The<br />
Expert Panel re<strong>com</strong>mends that healthcare providers discuss<br />
the following principles with RLS patients:<br />
✦ RLS and Parkinson’s disease are distinct disorders,<br />
although they have <strong>com</strong>mon treatment modalities<br />
✦ RLS is not a precursor to Parkinson’s disease, and<br />
RLS patients do not have increased risk for<br />
Parkinson’s disease<br />
✦ RLS is a manageable condition<br />
✦ Difficulty in articulating symptoms is <strong>com</strong>mon for<br />
RLS patients<br />
✦ RLS is a physical condition, not a mental disorder<br />
Several online resources are available to inform and educate<br />
providers and patients who wish to learn more about RLS. A<br />
list of organizations and their resources is provided in Table 5.<br />
In addition to serving as a patient support group for RLS sufferers,<br />
the <strong>Restless</strong> Legs Syndrome Foundation provides an<br />
annually updated RLS medical bulletin and a regular online<br />
newsletter for persons with RLS.<br />
9
Conclusion<br />
RLS is a <strong>com</strong>mon, but often inadequately diagnosed and<br />
treated, movement disorder that can usually be well managed<br />
in the primary care setting. Diagnosis of RLS and selection<br />
of the appropriate treatment depend on the primary care<br />
provider’s asking the correct questions regarding the characteristics,<br />
frequency, and quality of a patient’s symptoms.<br />
By doing so, the healthcare provider can design an individualized<br />
treatment regimen to <strong>com</strong>bat this disturbing disorder,<br />
thereby enhancing the RLS patient’s quality of life, both during<br />
sleeping and waking hours.<br />
10<br />
Table 5. Online RLS Resources for Patients and Providers<br />
Organization Contact Information Resources<br />
<strong>Restless</strong> Legs Syndrome Foundation<br />
Worldwide Education & Awareness for<br />
Movement Disorders (WE MOVE)<br />
National Institute of Neurological Disorders<br />
and Stroke (NINDS), National Institutes of<br />
Health<br />
www.rls.org<br />
(507-287-6465)<br />
www.wemove.org<br />
(800-437-6682)<br />
www.ninds.nih.gov<br />
(800-352-9424)<br />
Appendix A. Suggested Questions Following a Sleep Complaint 37<br />
✦ When did the problem begin?<br />
(To determine acute versus chronic insomnia)<br />
✦ Does the patient have a psychiatric or medical condition<br />
that may cause insomnia?<br />
✦ Is the sleep environment conducive to sleep?<br />
(Relates to noise, interruptions, temperature, light)<br />
✦ Does the patient report “creeping,” “crawling,” or<br />
“un<strong>com</strong>fortable, difficult-to-describe feelings” in the<br />
<strong>legs</strong> or arms that are relieved by movement?<br />
(Relates to RLS)<br />
✦ Does the bed partner report that the patient's <strong>legs</strong> or<br />
arms jerk during sleep?<br />
(Relates to periodic limb movements of sleep)<br />
Acknowledgements<br />
The Illinois Academy of Family Physicians and Scienta<br />
Healthcare Education ® developed this program for the Family<br />
Practice Education Network. The Academy thanks<br />
GlaxoSmithKline Pharmaceuticals for providing an educational<br />
grant for this program. We also thank Charles A.<br />
Goldthwaite, Jr, PhD, for his writing and editorial expertise in<br />
developing this document.<br />
✦ Patient support services<br />
✦ Annual medical bulletin<br />
✦ Quarterly newsletter<br />
✦Case studies and online<br />
courses<br />
✦ Information about RLS and<br />
movement disorders for<br />
patients, caregivers, and<br />
healthcare professionals<br />
✦ Publications<br />
✦ Current research<br />
✦ Does the patient snore loudly, gasp, choke, or stop<br />
breathing during sleep?<br />
(Relates to obstructive sleep apnea)<br />
✦ Is the patient a shift worker? What are the work hours?<br />
(Relates to circadian sleep disorders/sleep deprivation)<br />
✦ At what times does the patient go to bed and get up on<br />
weekdays and weekends?<br />
(Relates to poor sleep hygiene and sleep deprivation)<br />
✦ Does the patient use caffeine, tobacco, or alcohol? Does<br />
the patient take over-the-counter or prescription medications,<br />
such as stimulating antidepressants, steroids,<br />
decongestants, or beta-blockers?<br />
(Relates to substance-induced insomnia)<br />
Portions reprinted with permission from Table 1. <strong>Restless</strong> <strong>legs</strong> <strong>syndrome</strong>: detection and management in primary care. Am Fam Physician. 2000;62(1):108-114.<br />
Copyright AAFP. All rights reserved.
Faculty Disclosures<br />
The Illinois Academy of Family Physicians adheres to the<br />
conflict-of-interest policy of the American Academy of<br />
Family Physicians as well as to the guidelines of the<br />
Accreditation Council for Continuing Medical Education and<br />
the AMA. Current guidelines state that participants in CME<br />
activities should be made aware of any affiliation or financial<br />
interest that may affect an author’s article. The members of<br />
this Expert Panel have <strong>com</strong>pleted conflict-of-interest statements.<br />
Disclosures do not suggest bias, but provide readers<br />
with information relevant to evaluation of contents of these<br />
guidelines.<br />
Charles Adler, MD, PhD, serves as a consultant for and has<br />
received research support from GlaxoSmithKline, Pharmacia<br />
Corporation, and Elan Pharmaceuticals, Inc. Richard Allen,<br />
PhD, has received travel support from and has served as a<br />
consultant for GlaxoSmithKline, Pfizer, and Boehringer<br />
Ingleheim. Mary P. Ettari, MPH, PA-C, is a consultant for and<br />
serves on the speakers bureau for GlaxoSmithKline. William<br />
G. Ondo, MD, has received grant support from<br />
GlaxoSmithKline within the previous 12 months. Raymond<br />
Watts, MD, serves as a consultant for and has received<br />
research support from GlaxoSmithKline and Pfizer. W. Lane<br />
Edwards, Jr, MSN, ARNP, ANP, and Penny Tenzer, MD, report<br />
no conflicts of interest.<br />
11
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return it to Scienta Healthcare Education ® in the enclosed<br />
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12