Having made the diagnosis in more than 1,000 people during my career, I knew much of what it meant to receive the news and to live with the disease. Then I made the diagnosis of ALS one last time—in myself—before my neurologist confirmed it. What remained for me was to see how helpful the advice I had been giving my patients over the years would be to me and my family, and then to experience actually living with the disease.
ALS (amyotrophic lateral sclerosis, more commonly known as Lou Gehrig’s disease) is a progressive, uniformly fatal neurodegenerative disease. Ninety percent of those who acquire ALS are affected at random without known predisposing cause (sporadic ALS). Ten percent runs in families (familial ALS), with about 50 percent affected, and almost always without skipping generations. Symptoms commonly begin between the ages of 45 and 70 years, but may appear from the teens to the nineties. Mine began when I was 55 years old. I am now 60 years old.
The disease may begin in an arm or leg with weakness, muscular twitching, cramping, stiffness, or loss of coordination or in the mouth or throat with a change in speech or swallowing. As the initial symptoms grow progressively worse at the site of onset, symptoms spread and all regions of the body may be affected. At some point during this progression, the muscles for breathing become affected. This impairment leads to the usual cause of death—the inability to breathe. Most people with the disease survive two to five years after the onset of the first symptom.
Basic scientific research has made remarkable progress in understanding the underlying mechanisms that cause progression in ALS, particularly since 1993, with the discovery that a mutation in the Cu, Zn superoxide dismutase gene is the cause of ALS in 2 percent of people who develop the disease (20 percent of those who develop familial ALS). This abnormal gene has been inserted into mice to produce the best animal model of ALS. However, these advances have not yet translated into improvements in treatments for humans. Thus far, clinical trials with drugs that affect these mechanisms have produced either no benefit or more rapid progression of the disease. Improvements in treatment have been made through clinical research directed toward better management of symptoms, although health insurance coverage remains a problem, as well.
Multidisciplinary clinics are the gold standard for care of ALS patients and families. Each patient is seen by the neurologist, nurse, physical therapist, occupational therapist, respiratory therapist, speech pathologist, dietition, and social worker. Insurance typically covers only the neurologist. The other members of the team usually work in a proactive, preventative manner that is not covered by insurance. For example, the physical therapist evaluates joint mobility among other things and teaches range of motion exercises that are appropriate for the patient’s abilities in order to prevent contractures and frozen shoulders. Insurers usually pay for the physical therapist’s evaluation and treatment only after the contractures or the frozen shoulder have developed. Similar problems exist for patients attempting to acquire medical equipment. For example, if a patient has a pressure sore and we want an air floatation mattress to prevent the development of a decubitus ulcer, this is not covered. Insurers will provide some payment for obtaining such a mattress, but only if an advanced decubitus ulcer has already developed.I have advised my patients that one of the hardest parts of the disease was accepting the diagnosis. Once they got through that, they should enjoy a good quality of life. Although there is no treatment that has proven to meaningfully alter the course of their disease, we can treat most symptoms. And since much is known about the mechanisms that cause progression, we can try treatments that are thought to inhibit the mechanisms, including experimental drugs if patients are interested in participating in a clinical trial.
At some point during the first few visits, when they bring the topic up or seem ready, we discuss how long they might expect to live. Survival averages three or four years after the onset of symptoms, but it varies widely, with about 10 percent of patients living more than 10 years. I have always advised that they should prepare for the worst and get their affairs in order, but that they should hope for the best and do something fun every day, focusing each day on the things that they can still do. Death is almost always peaceful, particularly if their hospice is working with our multidisciplinary ALS team in managing their symptoms. They can live longer, up to more than 20 or more years longer, if they choose to use a ventilator to keep themselves breathing. In making this decision, they should focus first on the issue of quality of life on a ventilator.
I found that accepting the fatal diagnosis was easier than I expected. I think this is because the awareness of the diagnosis occurred to me gradually, and because I made the initial diagnosis myself. I was also quite familiar with the diagnostic process and knew that all reasonable alternatives had been excluded, even though ALS has not occurred before in my family. This was not the situation for my wife and my young adult children. I had shared with them my suspicion that I had ALS months earlier, but my wife and close doctor friends tended to think that my suspicion was strongly influenced by my work with so many ALS patients. They had the typical reaction, when my neurologist agreed with my diagnosis—they were surprised and devastated.
I have enjoyed a good quality of life since my diagnosis, even now that my breathing has decreased so much that I am under hospice care. Soon after my diagnosis, I became anxious a few times when thinking about how disabled I would become. My anxiety was relieved when I followed my own advice. I focused on what I was able to do today and realized that more disability would come on gradually, meaning that I would have time to adjust to it. Over time I discovered this to be true. My favorite activities once included backpacking, hiking, jogging, and mountain biking. I now ride my electric wheelchair on trails through the forest or to the beach. I still exercise daily. Initially I rode a stationary bike. Now I drive my wheelchair up to a motorized pedaling machine that assists my efforts. I still go to movies every week and to concerts and plays occasionally. I use my computer with a modified mouse and special programs that enabled me to write this piece. The highlights of my weeks are visiting with family and friends. I can no longer speak, so I usually express myself using a laser light attached to my glasses and pointing to a letter board. Like Stephen Hawking, I have a laptop computer that mounts on my wheelchair and is programmed with my voice.
I had an advanced directive and will for more than a decade before my diagnosis. When my neurologist confirmed ALS, my wife and I updated all legal documents. I formalized my intention to not be placed on a ventilator, the option chosen by 90 percent of patients. Surprisingly, depression is not common in ALS, even at the end of life. When present, it responds well to antidepressant drugs. I have not been depressed. Existential despair is the most common symptom for which we have no medical treatment. My spiritual beliefs are strong, so I face a peaceful death with equanimity and with the knowledge that I have had time to prepare for the welfare of my wife and children as well as possible.
Richard K. Olney, M.D., is a Professor Emeritus of Neurology at the University of California, San Francisco and the Founding Director of the ALS Treatment and Research Center at UCSF. He lives in Marin County, California.
February 08, 2008
http://www.burrillreport.com/article-when_the_doctor_becomes_the_patient.html