About Bilateral Carpal Tunnel Syndrome

What is Bilateral Carpal Tunnel Syndrome?

Bilateral carpal tunnel [bye-LAT-uh-rul KAR-puhl TUN-uhl] syndrome refers to the presence of carpal tunnel syndrome (CTS) in both hands. CTS is a condition where the median nerve, which runs from the forearm to the hand, becomes compressed or squeezed at the wrist. It is characterized by symptoms such as numbness, tingling, pain, and weakness in the hand and wrist. While CTS can affect just one hand, many people who have symptoms in one hand also have it in both hands when tested further. Factors such as age and body mass index (BMI) have been associated with bilateral CTS. It is important to consult with a healthcare professional for an accurate diagnosis and appropriate management of bilateral CTS.

What Causes Bilateral Carpal Tunnel Syndrome?

Bilateral carpal tunnel syndrome (CTS) happens when the median nerve gets squeezed in the wrist. The carpal tunnel is a narrow space in the wrist that can become constricted due to swelling or other changes. This pressure on the nerve leads to CTS.

Risks factors cannot be changed include:

Gender: Women are more prone to developing CTS compared to men.
Age: The peak incidence of CTS occurs between 40 and 50 years of age.

Risk factors can be controlled or improved include:

Obesity: A higher body mass index (BMI) has been associated with an increased risk of developing CTS.
Fluid accumulation: Recent weight gain can lead to increased fluid accumulation (abnormal buildup of excess fluid) in the tissue spaces within the carpal tunnel, contributing to CTS.
Medical conditions: Certain conditions like diabetes mellitus [meh-LIE-tus], hypothyroidism [high-poe-THIGH-roy-diz-um], and rheumatoid arthritis [ROO-muh-toyd ar-THRY-tis] have been linked to an increased risk of developing CTS.
Repetitive hand/wrist movements: Engaging in repetitive activities that involve the hand and wrist, such as typing or assembly line work, can increase the risk of developing CTS.

It's important to note that while these factors may increase the likelihood of developing bilateral CTS, they do not guarantee its occurrence. If you suspect you have bilateral CTS or have concerns about your risk factors, consult with a healthcare professional for an accurate diagnosis and personalized advice.

Symptoms of Bilateral Carpal Tunnel Syndrome

The symptoms of bilateral CTS can develop gradually and vary depending on the stage, progression, and severity of the condition.

Here are the most common early symptoms of bilateral CTS:

Numbness and tingling: Individuals may experience a pins-and-needles sensation in their fingers, wrists, and hands.
Weakness in grip: Some people may notice a decrease in grip strength, making it difficult to hold objects securely.

As bilateral CTS progresses or becomes more severe, additional symptoms may occur:

Pain: Individuals may experience pain in their fingers, hands, wrists, or even up their arm.
Throbbing sensation: Some people may feel a throbbing or pulsating sensation in their hands, wrists, or fingers.
Swelling: Fingers, hands, and wrists may become swollen due to fluid retention.
Difficulty performing fine motor skills: Tasks that require precise hand movements, such as buttoning a shirt or fastening a necklace clasp, may become challenging.

It's important to note that these symptoms can worsen over time and may be more noticeable during sleep or after repetitive hand movements. If you suspect you have bilateral CTS or if your symptoms worsen, it's advisable to consult a doctor for an accurate diagnosis and appropriate management. Getting an early diagnosis and treatment can help prevent further nerve damage.

How Bilateral Carpal Tunnel Syndrome is Diagnosed

To diagnose bilateral CTS, the following examinations, tests, and procedures are commonly performed:

Physical exam: Your doctor will examine your hands, arms, shoulders, and neck to determine if your symptoms are related to daily activities or an underlying disorder. They will check for tenderness, swelling, warmth, discoloration, and test the sensation in your fingers.
Nerve-conduction studies: These tests measure the speed and strength of electrical signals as they travel through the nerves in your affected hands. They can help confirm the diagnosis of carpal tunnel syndrome and assess its severity.
Blood tests: Your doctor may order blood tests to look for evidence of conditions like diabetes or thyroid disease, as these can be common triggers for carpal tunnel syndrome.

To determine the stage or severity of bilateral carpal tunnel syndrome, additional examinations, tests, and procedures may include:

Electromyography [ih-LEK-troh-my-OG-ruh-fee] (EMG): This test measures the electrical activity of your muscles and can help determine if there is muscle damage or nerve compression in the affected area.
Ultrasound or MRI imaging: These imaging techniques may be helpful when the diagnosis remains uncertain or to assess any structural abnormalities in the wrist and hand.

Your doctor will evaluate your individual case to determine which tests are necessary for diagnosing and assessing the severity of bilateral carpal tunnel syndrome.

How is Bilateral Carpal Tunnel Syndrome Treated?

The goals of treatment for bilateral carpal tunnel syndrome are to relieve symptoms, improve hand function, and prevent long-term damage. Here are the recommended treatments and how they work to achieve these goals:

Splinting: Wearing a wrist split, especially at night, can help keep the wrist in a neutral position and reduce pressure on the median nerve.
Medication: Nonsteroidal anti-inflammatory drugs (NSAIDs) and over-the-counter pain relievers like aspirin, ibuprofen, and naproxen sodium can help reduce pain and swelling associated with CTS. These medications work by reducing inflammation in the affected area. However, it's important to consult with your healthcare professional before taking any medication.
Therapies: Physical and occupational therapies help strengthen the hand and wrist, improve flexibility, and teach better ways to move and use your hands to reduce strain.
Therapeutic procedures: Steroid injections may be used to reduce inflammation and swelling. However, they should be used cautiously as they may have potential harmful effects on tissue function.
Health behavior changes: Making certain lifestyle modifications can also help manage CTS symptoms. These include taking frequent breaks during repetitive hand movements, using tools or devices to reduce strain on the wrists, maintaining a healthy weight, and practicing good posture.
Surgery: In more severe or persistent cases, a procedure called carpal tunnel release may be recommended to reduce pressure on the median nerve.

It's important to note that the effectiveness of these treatments may vary for everyone, and medication dosing may be affected by many factors for your individual situation. Other side effects can occur. Consult with your healthcare professional to determine the best treatment plan for your specific condition and read the information provided with your medication for additional side effect details.