Learn about ALS
Treatments
Slowing progression
The Food and Drug Administration (FDA) has approved only one drug treatment for
the disease: Riluzole (Rilutek). Riluzole is believed to reduce damage to motor
neurons by decreasing the release of glutamate via activation of glutamate transporters.
In addition, the drug may offer other neuroprotective effects, by means of sodium
and calcium channel blockades, inhibition of protein kinase C, and the promotion
of NMDA (N-methyl d-aspartate) receptor antagonism. Clinical trials with ALS patients
showed that Riluzole lengthens survival by several months, and may have a greater
survival benefit for those with a bulbar onset. The drug also extends the time before
a patient needs ventilation support. Riluzole does not reverse the damage already
done to motor neurons, and patients taking the drug must be monitored for liver
damage (occurring in ~10% of patients taking the drug) and other possible side effects.
Although only a modest first step, Riluzole offers hope that the progression of
ALS may one day be slowed by new medications or a combination of drugs.
Symptomatic
Other treatments for ALS are designed to relieve symptoms and improve the quality
of life for patients. This supportive care is best provided by multidisciplinary
teams of health care professionals such as physicians; pharmacists; physical, occupational,
and speech therapists; nutritionists; social workers; and home care and hospice
nurses. Working with patients and caregivers, these teams can design an individualized
plan of medical and physical therapy and provide special equipment aimed at keeping
patients as mobile and comfortable as possible.
Physicians can prescribe medications to help reduce fatigue, ease muscle cramps,
control spasticity, and reduce excess saliva and phlegm. Drugs also are available
to help patients with pain, depression, sleep disturbances, and constipation. Pharmacists
can advise on best use of medications. This is particularly helpful with regards
to patients with dysphagia, which many ALS patients experience. They would also
monitor a patient's medications to reduce risk of drug interactions.
Physical therapy and special equipment such as assistive technology can enhance
patients' independence and safety throughout the course of ALS. Gentle, low-impact
aerobic exercise such as walking, swimming, and stationary bicycling can strengthen
unaffected muscles, improve cardiovascular health, and help patients fight fatigue
and depression. Range of motion and stretching exercises can help prevent painful
spasticity and shortening (contracture) of muscles. Physical therapists can recommend
exercises that provide these benefits without overworking muscles. Physiotherapists
can suggest devices such as ramps, braces, walkers, and wheelchairs that help patients
remain mobile. Occupational therapists can provide or recommend equipment and adaptations
to enable people to retain as much independence in activities of daily living as
possible.
ALS patients who have difficulty speaking may benefit from working with a speech-language
pathologist. These health professionals can teach patients adaptive strategies such
as techniques to help them speak louder and more clearly. As ALS progresses, speech-language
pathologists can recommend the use of augmentative and alternative communication
such as voice amplifiers, speech-generating devices (or voice output communication
devices) and/or low tech communication techniques such as alphabet boards or yes/no
signals. These methods and devices help patients communicate when they can no longer
speak or produce vocal sounds. With the help of occupational Therapists, speech-generating
devices can be activated by switches or mouse emulation techniques controlled by
small physical movements of, for example, the head, finger or eyes.
Patients and caregivers can learn from speech-language pathologists and nutritionists
how to plan and prepare numerous small meals throughout the day that provide enough
calories, fiber, and fluid and how to avoid foods that are difficult to swallow.
Patients may begin using suction devices to remove excess fluids or saliva and prevent
choking. When patients can no longer get enough nourishment from eating, doctors
may advise inserting a feeding tube into the stomach. The use of a feeding tube
also reduces the risk of choking and pneumonia that can result from inhaling liquids
into the lungs. The tube is not painful and does not prevent patients from eating
food orally if they wish.
When the muscles that assist in breathing weaken, use of ventilatory assistance
(intermittent positive pressure ventilation (IPPV), bilevel positive airway pressure
(BIPAP), or biphasic cuirass ventilation (BCV)) may be used to aid breathing. Such
devices artificially inflate the patient's lungs from various external sources that
are applied directly to the face or body. When muscles are no longer able to maintain
oxygen and carbon dioxide levels, these devices may be used full-time. BCV has the
added advantage of being able to assist in clearing secretions by using high-frequency
oscillations followed by several positive expiratory breaths. Patients may eventually
consider forms of mechanical ventilation (respirators) in which a machine inflates
and deflates the lungs. To be effective, this may require a tube that passes from
the nose or mouth to the windpipe (trachea) and for long-term use, an operation
such as a tracheostomy, in which a plastic breathing tube is inserted directly in
the patient's windpipe through an opening in the neck.
Patients and their families should consider several factors when deciding whether
and when to use one of these options. Ventilation devices differ in their effect
on the patient's quality of life and in cost. Although ventilation support can ease
problems with breathing and prolong survival, it does not affect the progression
of ALS. Patients need to be fully informed about these considerations and the long-term
effects of life without movement before they make decisions about ventilation support.
Some patients under long-term tracheostomy intermittent positive pressure ventilation
with deflated cuffs or cuffless tracheostomy tubes (leak ventilation) are able to
speak, provided their bulbar muscles are strong enough. This technique preserves
speech in some patients with long-term mechanical ventilation.
Social workers and home care and hospice nurses help patients, families, and caregivers
with the medical, emotional, and financial challenges of coping with ALS, particularly
during the final stages of the disease. Social workers provide support such as assistance
in obtaining financial aid, arranging durable power of attorney, preparing a living
will, and finding support groups for patients and caregivers. Home nurses are available
not only to provide medical care but also to teach caregivers about tasks such as
maintaining respirators, giving feedings, and moving patients to avoid painful skin
problems and contractures. Home hospice nurses work in consultation with physicians
to ensure proper medication, pain control, and other care affecting the quality
of life of patients who wish to remain at home. The home hospice team can also counsel
patients and caregivers about end-of-life issues.
Researchers have stated that "ALS patients have a chronically deficient intake of
energy and recommended augmentation of energy intake." Both animal and human research
suggest that ALS patients should be encouraged to consume as many calories as possible
and not to restrict their calorie intake.
Many ALS patients use complementary and alternative medicines in an attempt to slow
their disease. This may include popular vitamin supplements such as Vitamin C, high
doses of vitamins and nutrients ("mega-dosing"), traditional Chinese medicine, or
other forms of therapy such as acupuncture, reiki, or massage. To date there have
been no studies demonstrating that such treatment approaches have an effect on the
progression of the disease. Given the lack of therapeutic options, people with ALS
can be vulnerable to snake oil scams involving complicated medical terminology or
potentially exciting technologies such as stem cell transplantation. Practitioners
of these scams promise amazing results but carry out little or no real follow up
or study of the patients they have treated in order to prove their assertions. The
risks of false hope, financial harm, and potentially medically harm, are a threat
to the wellbeing of ALS patients and their families.