Catatonia is a neuropsychiatric syndrome affecting about 10% of patients admitted to acute psychiatric inpatient units1. It disrupts movement, speech, and behavior, often causing individuals to appear withdrawn or exhibit unusual motor activity2. Although catatonia can be life-threatening if untreated, especially in its malignant form, it is highly treatable with timely intervention3. Understanding its types, symptoms, causes, and treatment options is essential for improving patient outcomes1.
Catatonia Types
Catatonia manifests in three main forms: akinetic (retarded), excited (hyperkinetic), and malignant catatonia4. The akinetic and excited types are the most commonly observed clinical presentations, while malignant catatonia is a severe subtype requiring urgent care56.
Akinetic Catatonia
Akinetic catatonia is the most frequent and generally less severe form57. It is characterized by motor immobility and stupor, where patients remain motionless and show a lack of voluntary movement87. Common features include mutism, where patients are unable or unwilling to speak, and withdrawal with decreased responsiveness to the environment85. Patients often experience reduced oral intake and decreased appetite, which can lead to complications such as malnutrition93. This form is frequently linked to neuropsychiatric disorders that affect movement10.
Excited Catatonia
Excited catatonia is less common but tends to be more severe than the akinetic form5. It presents with marked psychomotor agitation, restlessness, and anxiety10. Patients may exhibit excessive motor activity and emotional distress, making this form more challenging to manage5. Unlike the immobility seen in akinetic catatonia, excited catatonia involves hyperactivity and agitation7.
Malignant Catatonia
Malignant catatonia is a rare but life-threatening subtype characterized by autonomic instability611. Symptoms include dangerously high body temperature (fever), rapid heart rate, sweating, unstable blood pressure, and cyanosis12. This form disrupts the brain's control over automatic bodily functions and requires immediate medical intervention to prevent death612. Malignant catatonia often necessitates hospitalization and intensive treatment11.
“Catatonia is a severe motor syndrome. It is a secondary response to an underlying illness that requires quick diagnosis and treatment.”
— David Puder, Psychiatry and Psychotherapy PLLC13
Catatonia Symptoms
The diagnosis of catatonia relies on identifying specific signs and symptoms, with the DSM-5 requiring the presence of three or more characteristic features1415. Key symptoms include:
- Catalepsy: Sustained abnormal postures with decreased responsiveness8.
- Waxy flexibility: Limbs remain in positions placed by others16.
- Mutism: Absence of speech8.
- Negativism: Resistance to instructions or attempts to move the patient16.
- Stupor: Marked immobility and decreased responsiveness8.
- Posturing: Maintaining inappropriate or bizarre postures spontaneously16.
- Mannerisms: Odd or exaggerated movements8.
- Stereotypies: Repetitive, purposeless movements16.
- Grimacing: Fixed facial expressions due to muscle tension8.
Patients may fluctuate between hypoactive states, such as stupor and mutism, and hyperactive states, such as agitation and restlessness2. These symptoms can vary widely in intensity and presentation, sometimes complicating diagnosis17.
Catatonia Causes
The exact cause of catatonia remains unclear, but it is known to occur secondary to various psychiatric, neurological, and medical conditions52. Catatonia is most commonly associated with mood disorders, such as bipolar disorder and major depressive disorder, and psychotic illnesses like schizophrenia12. It also occurs in autism spectrum disorder and a range of medical illnesses182.
Neurological diseases, including Parkinson’s disease and dementia, have been implicated as underlying causes19. Autoimmune conditions such as multiple sclerosis and systemic lupus erythematosus may also be associated with catatonia14. Catatonia can result from disruptions in brain neurotransmitters, particularly involving GABA and dopamine, which affect motor control and behavior102.
Risk Factors
Several factors increase the likelihood of developing catatonia:
- Older age, especially in critically ill patients2021.
- History of neurological illness or neurodegenerative disease22.
- Genetic predisposition and family history, with about 27% of patients reporting relatives with similar symptoms20215.
- Previous episodes of catatonia, which predispose to recurrence22.
These risk factors highlight the importance of careful monitoring in vulnerable populations20.
Diagnosing Catatonia
Diagnosing catatonia requires clinical expertise and collaboration between primary care providers and psychiatric specialists5. Clinical observation is essential, often supported by standardized rating scales such as the Bush-Francis Catatonia Rating Scale (BFCRS)115. Diagnosis is primarily clinical but must include a thorough workup to exclude medical causes23.
Laboratory and imaging studies are crucial to rule out underlying conditions:
- Electroencephalogram (EEG): To detect seizures or nonconvulsive status epilepticus that may mimic catatonia2423.
- Neuroimaging (CT or MRI): To identify structural brain abnormalities such as tumors or strokes2524.
- Blood and urine tests: To exclude infections, metabolic disturbances, and autoimmune diseases2326.
A diagnostic lorazepam challenge may be used when the diagnosis is uncertain, as catatonia often responds rapidly to benzodiazepines11.
Catatonia Treatment
Treatment of catatonia depends on the underlying cause and symptom severity1. Prompt intervention is critical to prevent complications and improve prognosis127.
Medications
Benzodiazepines are the first-line treatment for catatonia, with lorazepam being the preferred agent due to its efficacy and rapid onset127. Lorazepam doses are individualized, typically ranging from 6 to 20 mg daily, titrated according to clinical response1. Benzodiazepines are also used to treat anxiety, seizures, and sleep disturbances, making them versatile in catatonia management1.
Treatment response rates to benzodiazepines range from 60% to 90%, especially in catatonia associated with mood disorders13. However, catatonia linked to schizophrenia may be less responsive to benzodiazepines13.
Electroconvulsive Therapy
Electroconvulsive therapy (ECT) is highly effective, particularly for patients who do not respond to benzodiazepines or have malignant catatonia127. ECT involves inducing controlled seizures through electrical stimulation of the brain, which promotes neurochemical changes that alleviate catatonic symptoms1. ECT has demonstrated efficacy rates exceeding 80% in resolving catatonia127.
ECT is often considered the main treatment for malignant catatonia due to its rapid and robust effects11. Maintenance ECT may be necessary in some cases to prevent relapse28.
Catatonia Prevention
Preventing catatonia is challenging because its exact cause is not fully understood512. However, management strategies focus on minimizing symptom severity and preventing recurrence through:
- Careful monitoring and early treatment of psychiatric and medical conditions associated with catatonia1.
- Avoiding or adjusting antipsychotic medications that may precipitate or worsen catatonia2923.
- Ensuring adherence to prescribed benzodiazepine therapy to reduce relapse risk1.
- Regular follow-up with healthcare providers for timely intervention upon symptom changes1.
These approaches aim to reduce the impact of catatonia and improve long-term outcomes1.
Related Conditions
Catatonia shares overlapping features with several other conditions, complicating diagnosis and management. Neuroleptic malignant syndrome (NMS), often triggered by antipsychotic drugs, mimics malignant catatonia but requires different treatment930. Delirium and other acute brain dysfunctions may also resemble catatonia31.
Because catatonia frequently occurs alongside psychiatric disorders and medical illnesses, a multidisciplinary approach is essential for comprehensive care1. Identifying and treating underlying conditions is critical to resolving catatonia symptoms26.
Living With Catatonia
Catatonia is a serious but treatable condition that affects movement, speech, and behavior. Early diagnosis and treatment with benzodiazepines or electroconvulsive therapy can lead to remission in most cases. Without treatment, catatonia can cause life-threatening complications such as pneumonia-symptoms-and-treatmentpneumonia-symptoms-and-treatmentpneumonia and blood clots.13339
Living with catatonia can be challenging due to the risk of serious medical complications if untreated239. Prolonged immobility and reduced awareness increase the risk of dehydration, malnutrition, aspiration pneumonia, and venous thromboembolism such as deep vein thrombosis (DVT)23329.
Supportive care, including environmental modifications and supervised living arrangements, may be necessary for patients with severe catatonia9. Caregivers, whether family members or healthcare professionals, play a vital role in managing daily needs and monitoring for complications9.
Engagement with support networks and advocacy groups can help patients and families cope with the condition and access resources1.
