Schizophrenia

schizophrenia-1Definition

Schizophrenia is a chronic and severe mental disorder that affects how a person thinks, feels, and behaves. People with schizophrenia may seem like they have lost touch with reality. Although schizophrenia is not as common as other mental disorders, the symptoms can be very disabling. It is one of the types of mental illness and disorder.

Symptoms

It can be difficult to diagnose schizophrenia in teens. This is because the first signs can include a change of friends, a drop in grades, sleep problems, and irritability—common and nonspecific adolescent behavior. Other factors include isolating oneself and withdrawing from others, an increase in unusual thoughts and suspicions, and a family history of psychosis. In young people who develop schizophrenia, this stage of the disorder is called the “prodromal” period. With any condition, it’s essential to get a comprehensive medical evaluation in order to obtain the best diagnosis. For a diagnosis of schizophrenia, some of the following symptoms are present in the context of reduced functioning for atleast 6 months:

HallucinationsThese include a person hearing voices, seeing things, or smelling things others can’t perceive. The hallucination is very real to the person experiencing it, and it may be very confusing for a loved one to witness. The voices in the hallucination can be critical or threatening. Voices may involve people that are known or unknown to the person hearing them.

Delusions. These are false beliefs that don’t change even when the person who holds them is presented with new ideas or facts. People who have delusions often also have problems concentrating, confused thinking, or the sense that their thoughts are blocked.

Negative symptoms. These are ones that diminish a person’s abilities. Negative symptoms often include being emotionally flat or speaking in a dull, disconnected way. People with the negative symptoms may be unable to start or follow through with activities, show little interest in life, or sustain relationships. Negative symptoms are sometimes confused with clinical depression.

Cognitive issues/disorganized thinking. People with the cognitive symptoms of schizophrenia often struggle to remember things, organize their thoughts or complete tasks. Commonly, people with schizophrenia have anosognosia or “lack of insight.” This means the person is unaware that he has the illness, which can make treating or working with him much more challenging.

schizophrenia-brain

Causes

Research suggests that schizophrenia may have several possible causes:

  • Genetics. Schizophrenia isn’t caused by just one genetic variation, but a complex interplay of genetics and environmental influences. While schizophrenia occurs in 1% of the general population, having a history of family psychosis greatly increases the risk. Schizophrenia occurs at roughly 10% of people who have a first-degree relative with the disorder, such as a parent or sibling. The highest risk occurs when an identical twin is diagnosed with schizophrenia. The unaffected twin has a roughly 50% chance of developing the disorder.
  • Exposure to viruses or malnutrition before birth, particularly in the first and second trimesters has been shown to increase the risk of schizophrenia. Inflammation or autoimmune diseases can also lead to increased immune system
  • Brain chemistry.Problems with certain brain chemicals, including neurotransmitters called dopamine and glutamate, may contribute to schizophrenia. Neurotransmitters allow brain cells to communicate with each other. Networks of neurons are likely involved as well.
  • Substance use.Some studies have suggested that taking mind-altering drugs during teen years and young adulthood can increase the risk of schizophrenia. A growing body of evidence indicates that smoking marijuana increases the risk of psychotic incidents and the risk of ongoing psychotic experiences. The younger and more frequent the use, the greater the risk. Another study has found that smoking marijuana led to earlier onset of schizophrenia and often preceded the manifestation of the illness.

schizophrenia-brain-displayDiagnosis

A schizophrenia diagnosis is reached by observing the actions of the patient. If the doctor suspects possible schizophrenia, they will need to know about the patient’s medical and psychiatric history.

Certain tests will be ordered to rule out other illnesses and conditions that may trigger schizophrenia-like symptoms. Examples of some of the tests may include:

  • Blood tests
  • Imaging studies – to rule out tumors and problems in the structure of the brain
  • Psychological evaluation – a specialist will assess the patient’s mental state by asking about thoughts, moods, hallucinations, suicidal traits, violent tendencies or potential for violence, as well as observing their demeanor and appearance

Schizophrenia – diagnostic criteria

Patients must meet the criteria outlined in the DSM (Diagnostic and Statistical Manual of Mental Disorders). This is an American Psychiatric Association manual used by healthcare professionals to diagnose mental illnesses and conditions.

The health care professional needs to exclude other possible mental health disorders, such as bipolar disorder or schizoaffective disorder.

It is also important to establish that the signs and symptoms have not been caused by, for example, a prescribed medication or substance abuse.

Also, the patient must:

1) Have at least two of the following typical symptoms of schizophrenia –

  • Delusions
  • Disorganized or catatonic behavior
  • Disorganized speech
  • Hallucinations
  • Negative symptoms that are present for much of the time during the last 4 weeks

2) Experience considerable impairment in the ability to attend school, carry out their work duties, or carry out everyday tasks

3) Have symptoms which persist for 6 months or more

Treatment

Schizophrenia requires lifelong treatment, even when symptoms have subsided. Treatment with medications and psychosocial therapy can help manage the condition. In some cases, hospitalization may be needed.

A psychiatrist experienced in treating schizophrenia usually guides treatment. The treatment team also may include a psychologist, social worker, psychiatric nurse and possibly a case manager to coordinate care. The full-team approach may be available in clinics with expertise in schizophrenia treatment.

Medications

Medications are the cornerstone of schizophrenia treatment, and antipsychotic medications are the most commonly prescribed drugs. They’re thought to control symptoms by affecting the brain neurotransmitter dopamine.

The goal of treatment with antipsychotic medications is to effectively manage signs and symptoms at the lowest possible dose. The psychiatrist may try different drugs, different doses or combinations over time to achieve the desired result. Other medications also may help, such as antidepressants or anti-anxiety drugs. It can take several weeks to notice an improvement in symptoms.

Because medications for schizophrenia can cause serious side effects, people with schizophrenia may be reluctant to take them. Willingness to cooperate with treatment may affect drug choice. For example, someone who is resistant to taking medication consistently may need to be given injections instead of taking a pill.

Ask your doctor about the benefits and side effects of any medication that’s prescribed.

Second-generation antipsychotics

These newer, second-generation medications are generally preferred because they pose a lower risk of serious side effects than do first-generation antipsychotics. Second-generation antipsychotics include:

  • Aripiprazole (Abilify)
  • Asenapine (Saphris)
  • Brexpiprazole (Rexulti)
  • Cariprazine (Vraylar)
  • Clozapine (Clozaril)
  • Iloperidone (Fanapt)
  • Lurasidone (Latuda)
  • Olanzapine (Zyprexa)
  • Paliperidone (Invega)
  • Quetiapine (Seroquel)
  • Risperidone (Risperdal)
  • Ziprasidone (Geodon)

First-generation antipsychotics

These first-generation antipsychotics have frequent and potentially significant neurological side effects, including the possibility of developing a movement disorder (tardive dyskinesia) that may or may not be reversible. First-generation antipsychotics include:

  • Chlorpromazine
  • Fluphenazine
  • Haloperidol
  • Perphenazine

These antipsychotics are often cheaper than second-generation antipsychotics, especially the generic versions, which can be an important consideration when long-term treatment is necessary.

Psychosocial interventions

Once psychosis recedes, in addition to continuing on medication, psychological and social (psychosocial) interventions are important. These may include:

  • Individual therapy.Psychotherapy may help to normalize thought patterns. Also, learning to cope with stress and identify early warning signs of relapse can help people with schizophrenia manage their illness.
  • Social skills training.This focuses on improving communication and social interactions and improving the ability to participate in daily activities.
  • Family therapy.This provides support and education to families dealing with schizophrenia.
  • Vocational rehabilitation and supported employment.This focuses on helping people with schizophrenia prepare for, find and keep jobs.

Most individuals with schizophrenia require some form of daily living support. Many communities have programs to help people with schizophrenia with jobs, housing, self-help groups and crisis situations. A case manager or someone on the treatment team can help find resources. With appropriate treatment, most people with schizophrenia can manage their illness.

Hospitalization

During crisis periods or times of severe symptoms, hospitalization may be necessary to ensure safety, proper nutrition, adequate sleep and basic hygiene.

Electroconvulsive therapy

For adults with schizophrenia who do not respond to drug therapy, electroconvulsive therapy (ECT) may be considered. ECT may be helpful for someone who also has depression.

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