General paresis is a problem with mental function due to damage to the brain from untreated
Causes, incidence, and risk factors
General paresis is one form of
The syphilis infection can appear in many different ways and damages many different nerves of the brain. This damage can cause:
- Abnormal mental function including
hallucinationsand false ideas (delusions)
Brief, sharp, “lightning” pains that occur with
Decreased mental function
Eye changes and abnormal pupil response
General paresis usually begins about 15 to 20 years after the syphilis infection. Risks include syphilis infection and infection with other sexually transmitted diseases, such as
Syphilis infections are passed through sexual contact with an infected person. It can also be spread through nonsexual contact.
- Decreased language ability (aphasia)
- Decreased motivation
- Impaired judgment
- Loss of ability to calculate
- Loss of long-term memory (long-past events)
- Loss of short-term memory (recent events)
Muscle weakness(difficulty using legs, arms, or other parts of the body)
- Personality changes
- Delusions, hallucinations
- Irritability, anger
- Inappropriate moods
- Low mood
Signs and tests
Change in the response of the pupil in the eye
Irregular shape of the pupil
Inability to stand with the eyes closed (Romberg test)
Loss of sense of vibration and position
Problems with walking (gait)
dementia, with loss of many brain functions
The doctor may do the following tests:
Nervous system (neurologic) exam
Blood and urine tests to detect syphilis in the body include:
Tests of the nervous system may include:
Cerebrospinal fluid(CSF) Head CT scanand MRI Nerve conduction tests
The goals of treatment are to cure the infection and slow the disorder from getting worse. The doctor will prescribe penicillin or other antibiotics to treat the infection. Treatment will likely continue until the infection has completely cleared.
Treating the infection will reduce new nerve damage. But it will not cure damage that has already occurred. A follow-up examination of the cerebrospinal fluid is needed to see whether the antibiotic therapy worked.
Treatment of symptoms is needed for existing nervous system damage. Seizures rarely occur, but emergency treatment may be needed if they do. Anticonvulsant medicines can help control seizures.
Patients who are unable to care for themselves may need help with such activities as eating and dressing. Those with muscle weakness may need occupational therapy or physical therapy.
Without treatment, people can become disabled. People with late syphilis infections are more likely to get other infections and diseases.
Inability to care for yourself
Inability to communicate or interact with others
Injury due to seizures or falls
Calling your health care provider
Call your health care provider if you know you have been exposed to syphilis or other sexually transmitted infection in the past, and have not already been treated.
Call your health care provider if you have symptoms of general paresis, especially if you know you have been infected with syphilis.
Go to the emergency room or call the local emergency number (such as 911) if you have seizures.
Treating primary syphilis and secondary syphilis infections will prevent general paresis.
Practicing safer sex, such as limiting partners and using protection, may reduce the risk of getting infected with syphilis. Avoid direct skin contact with persons who have secondary syphilis.