Eric Clapton Having Difficulty Playing His Guitar

Say it isn’t so!

In our latest installment of “Ailments of Aging Rock Stars” master guitarist and rock legend Eric Clapton says he is struggling to play guitar because of a condition called peripheral neuropathy.

In an interview with Classic Rock magazine, Clapton, 71, says he can still play, but that it is “hard work.”

“I’ve had quite a lot of pain over the last year. It started with lower back pain and turned into what they call peripheral neuropathy, which is where you feel like you have electric shocks going down your leg.

“Because I’m in recovery from alcoholism and addiction to substances, I consider it a great thing to be alive at all. By rights I should have kicked the bucket a long time ago. For some reason I was plucked from the jaws of hell and given another chance.”

Clapton recently released his 23rd studio album, I Still Do.

What is peripheral neuropathy?

An estimated 20 million people in the United States have some form of peripheral neuropathy, a condition that develops as a result of damage to the peripheral nervous system — the vast communications network that transmits information between the central nervous system (the brain and spinal cord) and every other part of the body. (Neuropathy means nerve disease or damage.)

Symptoms can range from numbness or tingling, to pricking sensations (paresthesia), or muscle weakness. Areas of the body may become abnormally sensitive leading to an exaggeratedly intense or distorted experience of touch (allodynia). In such cases, pain may occur in response to a stimulus that does not normally provoke pain. Severe symptoms may include burning pain (especially at night), muscle wasting, paralysis, or organ or gland dysfunction. Damage to nerves that supply internal organs may impair digestion, sweating, sexual function, and urination. In the most extreme cases, breathing may become difficult, or organ failure may occur.

Peripheral nerves send sensory information back to the brain and spinal cord, such as a message that the feet are cold. Peripheral nerves also carry signals from the brain and spinal cord to the muscles to generate movement. Damage to the peripheral nervous system interferes with these vital connections. Like static on a telephone line, peripheral neuropathy distorts and sometimes interrupts messages between the brain and spinal cord and the rest of the body.

Peripheral neuropathies can present in a variety of forms and follow different patterns. Symptoms may be experienced over a period of days, weeks, or years. They can be acute or chronic. In acute neuropathies such as Guillain-Barré syndrome (in which the body’s immune system attacks part of the peripheral nervous system and impairs sending and receiving nerve signals), symptoms appear suddenly, progress rapidly, and resolve slowly as damaged nerves heal. In chronic forms, symptoms begin subtly and progress slowly. Some people may have periods of relief followed by relapse. Others may reach a plateau stage where symptoms stay the same for many months or years. Many chronic neuropathies worsen over time. Although neuropathy may be painful and potentially debilitating, very few forms are fatal.

In diabetic neuropathy, one of the most common forms of peripheral neuropathy, nerve damage occurs in an ascending pattern. The first nerve fibers to malfunction are the ones that travel the furthest from the brain and the spinal cord. Pain and numbness often are felt symmetrically in both feet followed by a gradual progression up both legs. Later, the fingers, hands, and arms may become affected.

What are the symptoms of peripheral nerve damage?

Symptoms vary depending on whether motor, sensory, or autonomic nerves are damaged. Motor nerves control voluntary movement of muscles such as those used for walking, grasping things, or talking. Sensory nerves transmit information such as the feeling of a light touch or the pain from a cut. Autonomic nerves control organ activities that are regulated automatically such as breathing, digesting food, and heart and gland functions. Some neuropathies may affect all three types of nerves; others primarily affect one or two types.

Motor nerve damage is most commonly associated with muscle weakness. Other symptoms may include painful cramps and fasciculations (uncontrolled muscle twitching visible under the skin), muscle atrophy (severe shrinkage of muscle size), and decreased reflexes.

Sensory nerve damage causes a variety of symptoms because sensory nerves have a broad range of functions. Larger sensory fibers enclosed in myelin register vibration, light touch, and position sense. Damage to large sensory fibers impairs touch, resulting in a general decrease in sensation. Since this is felt most in the hands and feet, people may feel as if they are wearing gloves and stockings even when they are not. This damage to larger sensory fibers may contribute to the loss of reflexes. Loss of position sense often makes people unable to coordinate complex movements like walking or fastening buttons, or to maintain their balance when their eyes are shut.

Smaller sensory fibers without myelin sheaths transmit pain and temperature sensations. Damage to these fibers can interfere with the ability to feel pain or changes in temperature. People may fail to sense that they have been injured from a cut or that a wound is becoming infected. Others may not detect pain that warns of impending heart attack or other acute conditions. Loss of pain sensation is a particularly serious problem for people with diabetes, contributing to the high rate of lower limb amputations among this population.

Neuropathic pain is a common, often difficult to control symptom of sensory nerve damage and can seriously affect emotional well-being and overall quality of life. Often worse at night, neuropathic pain seriously disrupts sleep and adds to the emotional burden of sensory nerve damage. Neuropathic pain can often be associated with an oversensitization of pain receptors in the skin, so that people feel severe pain (allodynia) from stimuli that are normally painless. For example, some may experience pain from bed sheets draped lightly over the body. Over many years, sensory neuropathy may lead to changes in the skin, hair, as well as to joint and bone damage. Unrecognized injuries due to poor sensation contribute to these changes, so it is important for people with neuropathy to inspect numb areas for injury or damage.

Autonomic nerve damage symptoms are diverse since the parasympathetic and sympathetic nerves of the peripheral nervous system control nearly every organ in the body. Common symptoms of autonomic nerve damage include an inability to sweat normally, which may lead to heat intolerance; a loss of bladder control; and an inability to control muscles that expand or contract blood vessels to regulate blood pressure. A drop in blood pressure when a person moves suddenly from a seated to a standing position (a condition known as postural or orthostatic hypotension) may result in dizziness, lightheadedness, or fainting. Irregular heartbeats may also occur.

Gastrointestinal symptoms may accompany autonomic neuropathy. Malfunction of nerves controlling intestinal muscle contractions can lead to diarrhea, constipation, or incontinence. Many people also have problems eating or swallowing if autonomic nerves controlling these functions are affected.

What causes peripheral neuropathy?

Peripheral neuropathy may be either inherited or acquired through disease processes or trauma. In many cases, however, a specific cause cannot be identified. Doctors usually refer to neuropathies with no known cause as idiopathic.

Causes of acquired peripheral neuropathy include:

Physical injury (trauma) is the most common cause of acquired nerve injury.

• Injury or sudden trauma, such as from automobile accidents, falls, sports-related activities, and surgical procedures.
• Repetitive stress frequently leads to entrapment neuropathies, a form of compression injury. Cumulative damage can result from repetitive, awkward, and/or forceful activities that require movement of any group of joints for prolonged periods. The resulting irritation may cause ligaments, tendons, and muscles to become inflamed and swollen, constricting the narrow passageways through which some nerves pass. Ulnar neuropathy and carpal tunnel syndrome are examples of the most common types of neuropathy from trapped or compressed nerves at the elbow or wrist.

Diseases or disorders and their related processes (such as inflammation) can be associated with peripheral neuropathy.

• Metabolic and endocrine disorders impair the body’s ability to transform nutrients into energy and process waste products, and this can lead to nerve damage. Diabetes mellitus, characterized by chronically high blood glucose levels, is a leading cause of peripheral neuropathy in the United States. About 60 percent to 70 percent of people with diabetes have mild to severe forms of nervous system damage that can affect sensory, motor, and autonomic nerves and present with varied symptoms.
• Small blood vessel disease can decrease oxygen supply to the peripheral nerves and lead to serious nerve tissue damage. Diabetes frequently leads to impaired blood flow to nerves. Various forms of vasculitis (blood vessel inflammation) frequently cause vessel walls to harden, thicken, and develop scar tissue, decreasing their diameter and impeding blood flow.
• Autoimmune diseases, in which the immune system attacks the body’s own tissues, can lead to nerve damage. Sjogren’s syndrome, lupus, and rheumatoid arthritis are among the autoimmune diseases that can be associated with peripheral neuropathy. When the tissue surrounding nerves becomes inflamed, the inflammation can spread directly into nerve fibers. Over time, these chronic autoimmune conditions can destroy joints, organs, and connective tissues, making nerve fibers more vulnerable to compression injuries and entrapment. Chronic conditions may alternate between remission and relapse. Acute inflammatory demyelinating neuropathy, better known as Guillain- Barré syndrome, can damage motor, sensory, and autonomic nerve fibers.
• Kidney disorders may cause neuropathies. Kidney dysfunction can lead to abnormally high amounts of toxic substances in the blood that can damage nerve tissue. A majority of indviduals who require dialysis because of kidney failure develop polyneuropathy.
• Cancers can infiltrate nerve fibers or exert damaging compression forces on nerve fibers. Tumors also can arise directly from nerve tissue cells. Toxicity from the chemotherapeutic agents and radiation used to treat cancer also can cause peripheral neuropathy. An estimated 30 to 40 percent of people who undergo chemotherapy develop peripheral neuropathy and it is a leading reason why people with cancer stop chemotherapy early.
• Neuromas are benign tumors that are caused by an overgrowth of nerve tissue that develops after a penetrating injury that severs nerve fibers. Neuromas are often associated with intense pain and sometimes they engulf neighboring nerves, leading to further damage and even greater pain.
• Infections can cause peripheral neuropathy. Viruses and bacteria that can attack nerve tissues include herpes varicella zoster (shingles), Epstein-Barr virus, West Nile virus, cytomegalovirus, and herpes simplex members of the large family of human herpes viruses. These viruses can severely damage sensory nerves, causing attacks of sharp, lightning-like pain.

Exposure to toxins may damage nerves and cause peripheral neuropathy.

• Medication toxicity can be caused by many agents in addition to those for fighting cancer. Other agents that commonly cause peripheral neuropathy as a side effect include those used to fight infection such as antiretroviral agents for treating HIV. In addition, anticonvulsant agents and some heart and blood pressure medications can commonly cause peripheral neuropathy. In most cases, the neuropathy resolves when these medications are discontinued or dosages are adjusted.
• Environmental or industrial toxins such as lead, mercury, and arsenic can cause peripheral neuropathy. In addition, certain insecticides and solvents have also been known to cause neuropathies.
• Heavy alcohol consumption is a common cause of peripheral neuropathy. Damage to the nerves associated with long-term alcohol abuse may not be reversible when a person stops drinking alcohol, however, doing so may provide some symptom relief and prevent further damage. Chronic alcohol abuse also frequently leads to nutritional deficiencies (including B12, thiamine, and folate) that contribute to the development of peripheral neuropathy.

Source: National Institute of Neurological Disorders and Stroke