Catatonic depression is a subset of depression that is characterized by additional symptoms of extended periods without speaking and remaining motionless for a long time. The term catatonic is not a separate illness in itself, but rather considered an additional part of an already present diagnosis. Other illnesses such as post-traumatic stress disorder, bipolar disorder, and schizophrenia could also have catatonia has a distinction.
Those affected may not be able to perform simple tasks such as sitting up in bed or changing their clothes. They may also sit quietly for hours on end not moving a muscle.
It is thought that catatonic depression is caused by dysregulation of the GABA, Glutamate, and dopamine; neurotransmitters of the brain. Catatonic depression features the symptoms of depression while including neuro genetic motor inability. When presented with a case such as this, medical professionals need to identify the root cause of the depression to ameliorate the mental stupor.
It is estimated that less than 10 percent of psychiatric patients develop a mental disorder with catatonic features making its appearance quite rare.
Major depressive disorder in itself has a wide subset of varying symptoms which is required first to be subsequently labeled as having catatonic depression. These preliminary symptoms may include:
Once the diagnosis of depression has been confirmed, an additional recognition of catatonia may be identified if the following are present as well. If so the diagnosis of catatonic depression can be made. Symptoms of catatonia may include:
Additional symptoms of catatonic depression may include:
In order for a person to meet the criteria of having catatonic depression, they must have at least two of the catatonic depression symptoms in addition of having major depressive disorder.
The precise cause for catatonic depression is not known, but it is believed to the result of an imbalance of chemicals in the brain called neurotransmitters. When working normally, these endogenous chemicals transmit signals across a chemical synapse, such as the neuromuscular junction, from one nerve cell to another, or between muscle cells. Neurotransmitters play an important role in regulating everyday functions.
It is believed that patients with catatonic depression suffer from excessive fear that leads to an imbalance of neurotransmitters in the brain. Intense fear may cause the body to freeze up, possibly as a defensive maneuver to avoid detection. The neurotransmitters dopamine, gamma aminobutyric acid (GABA) and glutamate have been linked to catatonic depression.
Due to the acute and often clinically severe nature of having catatonic depression, no large scale, controlled studies, or meta-analyses have been carried out to identify effective intervention for the condition. However, several appropriate therapies as part of psychiatric treatment have been found to be effective. The following are some of the treatments used for catatonic depression.
Considered the first line treatment for catatonia as they help to increase levels of the GABA neurotransmitter in the brain. It is a class of psychoactive drugs commonly used in the treatment of anxiety, muscle spasms, and insomnia. It is estimated that about 50 to 70 percent of catatonic patient will respond to benzodiazepines, with about 79 percent having complete remission. However, this drug is considered highly addictive and should only be used on a short-term basis.
This form of treatment has the unique position of not only treating catatonia but potentially the underlying condition as well. An early indication for ECT is when treating malignant or excited delirious forms of catatonia. Early utilization has been associated with more optimal outcomes. ECT is done by attaching electrodes to the head and sending electrical impulses to the brain, essentially causing a mild seizure. Despite how it sounds, ECT has been proven to be safe and effective.
A commonly used class of antipsychotic medication in cases of schizophrenia, these medications may actually worsen catatonia, but their use may be associated with a decrease in mortality in some cases. Many underlying conditions may utilize atypical antipsychotics which is why when treating a new presentation of catatonia, a high dose of benzodiazepines for one or two weeks followed by a course of ECT, with the last resort being clozapine, should be followed as purposed by one study.
Recognizing the symptoms of depressive catatonia can be quite obvious to spot. If you have loved one you see on a regular basis, observing their behavior for depressive tendencies and catatonic behavior is difficult to miss. Catatonic depression is fully curable in most cases with early intervention and proper treatment. It is advised to seek urgent medical care for anyone you suspect has the condition.