Symptoms of Catatonia
Catatonia is a neuropsychiatric syndrome characterized by a cluster of psychomotor disturbances including stupor, catalepsy, waxy flexibility, mutism, negativism, posturing, mannerisms, stereotypies, psychomotor agitation, grimacing, echolalia, and echopraxia. 1
Core Clinical Features
The hallmark symptoms can be organized into two primary presentations:
Retarded-Stuporous Type
- Immobility and stupor - patients remain motionless for prolonged periods 2
- Mutism - complete absence of verbal output 1, 2
- Lead pipe rigidity - the most common neurologic finding, characterized by sustained muscle tension throughout passive movement 3
- Catalepsy - maintenance of postures against gravity 1
- Waxy flexibility - limbs remain in positions where they are placed by the examiner 1
- Staring - fixed, unresponsive gaze 2
- Negativism - resistance or opposition to instructions or external stimuli 1
Excited-Delirious Type
- Psychomotor agitation - prolonged periods of purposeless, excessive motor activity 1, 2
- Agitation ranging from alert mutism to extreme restlessness 3
Additional Motor and Behavioral Signs
Beyond the core features, catatonia presents with numerous other manifestations:
- Posturing - spontaneous and active maintenance of abnormal postures 1
- Mannerisms - odd, circumstantial caricatures of normal actions 1
- Stereotypies - repetitive, non-goal-directed movements 1
- Grimacing - maintenance of odd facial expressions 1
- Echolalia - meaningless repetition of another person's spoken words 1
- Echopraxia - mimicking another person's movements 1
- Akinesia - absence or poverty of movement 3
- Dyskinesia - abnormal involuntary movements 3
Autonomic and Systemic Manifestations
Catatonia frequently presents with autonomic instability, which may occur before motor symptoms:
- Hyperthermia - fever up to 41°C or higher 3
- Tachycardia - elevated heart rate ≥25% above baseline 3
- Blood pressure instability - fluctuations ≥20 mm Hg diastolic or ≥25 mm Hg systolic within 24 hours 3
- Diaphoresis - excessive sweating 3
- Pallor - abnormal paleness 3
- Sialorrhea - excessive salivation 3
- Dysphagia - difficulty swallowing 3
Mental Status Changes
Alterations in consciousness and cognition are central features:
- Delirium - the most common form of altered mental status 3
- Mental status ranging from alert mutism to stupor to coma 3
- Affective disturbances - mood and emotional dysregulation 4
- Cognitive-behavioral abnormalities 4
Less Common Neurologic Signs
Additional neurologic findings may include:
- Positive Babinski sign 3
- Chorea - involuntary jerky movements 3
- Seizures 3
- Opisthotonos - severe arching of the back 3
- Trismus - lockjaw 3
- Oculogyric crisis - involuntary upward deviation of the eyes 3
- Intermittent tremors 3
Diagnostic Threshold
The presence of two prominent catatonic features lasting 24 hours or longer is sufficient to identify the syndrome, though more than 40 motor signs have been described in the literature 5. The syndrome lasts from hours to days and requires prompt recognition to prevent life-threatening complications 4.
Critical Clinical Context
Catatonia occurs in 5-18% of psychiatric inpatients and 3.3% of medical inpatients, making it a common but frequently underrecognized condition 4. The syndrome can present with motor, affective, and cognitive-behavioral signs that overlap significantly with other neurological and psychiatric conditions, leading to diagnostic challenges 6. Early recognition of these symptoms is crucial because catatonia is highly treatable and associated with significant morbidity and mortality if left untreated 2.