vegetative
Introduction
Florist introduction Vegetative patient, also known as the state of the plant, irreversible coma. It is a serious damage to the function of the cerebral cortex. The victim is in an irreversible deep coma and loses consciousness. However, the subcortical center can maintain spontaneous breathing and heartbeat. This state is called plant state. Patients in this state are called vegetatives. ", is a special human state similar to the living state of plants. In addition to retaining some instinctive neural reflexes and the ability to metabolize matter and energy, cognitive abilities (including cognition of one's own existence) have been completely lost without any active activity. basic knowledge The proportion of illness: 0.001% Susceptible people: no specific population Mode of infection: non-infectious Complications: brain tumors
Cause
Vegetative cause
1, acute injury, this is the most common cause of PVS. Postoperative trauma is the most common, including non-traumatic injuries such as traffic accidents, gunshot wounds and birth injuries. Including all kinds of hypoxic ischemic encephalopathy caused by causes, such as heartbeat, respiratory arrest, asphyxia, hang, drowning, etc.; severe persistent hypotension attacks on various cerebrovascular accidents, such as cerebral hemorrhage, cerebral infarction, cobweb Intramembranous hemorrhage, etc.; in addition to central nervous system infections, tumors, poisoning and so on.
2, degenerative and metabolic diseases, Alzheimer's disease, multiple cerebral infarction, dementia, Pick disease, Creuzfeldt-Jakob disease, Parkinson disease, Huntington disease is a common etiology of the disease. In children, thanks to the common ganglion lipid deposits, adrenal gland malnutrition, mitochondrial encephalopathy, gray matter degeneration and other diseases
3, deformity, including no brain malformation, congenital hydrocephalus, microcephaly, brain swelling and so on.
Prevention
Vegetative prevention
Doctors and relatives should not show fear after trauma, and avoid post-traumatic stress disorder in patients. Patients with mild traumatic brain injury should not stay in the hospital for too long and do too much examination, because it is easy for the patient to feel the serious injury and promote the occurrence of post-traumatic syndrome.
Complication
Vegetative complications Complications brain tumor concussion
Deep coma, brain death, brain damage.
Symptom
Vegetative symptoms common symptoms deep coma, incontinence, motor dysfunction
1. Loss of voluntary exercise, limbs sometimes have a flexive escape response to painful stimuli. Therefore, such patients cannot move or change their position, they can only lie in bed, and must be cared for and cared for by others.
2. Intelligence, thoughts, will, emotions, and other purposeful activities have been lost; their eyes can be opened, the eyeballs show purposeless activities, they can't speak, they can't understand the language, and sometimes they can't recognize even if the eyes can look at them. .
3, the loss of active eating capacity, can not tell the hunger and satiety, sometimes swallowing, chewing, grinding teeth and other actions.
4, incontinence.
5. The EEG is flat or has a resting potential. There may be high amplitude slow waves for several months after injury, or occasional alpha rhythm. These are the pathogenesis and clinical features of vegetative people.
Examine
Vegetative examination
Blood pressure, pulse, electrocardiogram, brain CT examination, cranial plain film and other examinations.
Diagnosis
Vegetative diagnosis
1. The latching syndrome Nordgren reported in 1971 that due to the bilateral cerebral basal lesions, the cortical brainstem bundle and the corticospinal tract on the ventral side of the brain stem were damaged, resulting in silence and quadriplegia, which looked like a coma. But in fact, the consciousness is completely clear, and the patient's skill is used to close the eyes and answer the questions to relapse.
2, coma is a continuous, deep pathological disturbance of consciousness, characterized by closed eyes, praise can not wake up. It differs from PVS in that the latter can be awakened without cognition, and the coma can neither wake up nor be cognitive.
3. Brain Death Brain death is a permanent and irreversible loss of the brain's function (experts, especially the brainstem). It is characterized by deep coma and no spontaneous breathing. It must be maintained by a ventilator and all brain stem reflexes are lost.
