Brain Death ; diagnosis ; Humans

A case of the brain death confirmed by isotope angiogrphy is described. Isotope angiography is a simple and noninvasive technic compared to carotid angiography, and is recommended as a reliable test for the diagnosis of brain death.
Angiography* ; Brain Death* ; Brain* ; Diagnosis

A case of the brain death confirmed by isotope angiogrphy is described. Isotope angiography is a simple and noninvasive technic compared to carotid angiography, and is recommended as a reliable test for the diagnosis of brain death.
Angiography* ; Brain Death* ; Brain* ; Diagnosis

No abstract available.
Brain Death* ; Brain* ; Cerebral Angiography* ; Diagnosis*

Ever since transplant surgery became a common procedure. The early diagnosis of irreversible cessation of cerebral function has become an important need We analysed the findings of transcranial doppler of five cases. Two was diagnosed brain death by currently accepted criteria. Two cases showed absence of intracranial blood flow and normal to disturbed flow status of the cervical carotid artery. Three cases showed reverberating flow pattern with reflux phenomenon. Transcranial doppler investigation seems to provide a practical, non-invasive. And reliable disgnostic evidence for the arrest of cerebral circulation.
Brain Death* ; Brain* ; Carotid Arteries ; Diagnosis* ; Early Diagnosis

Meningiomas, one of the most common neoplasms of the central nervous system, may be encountered incidentally during autopsy. Most of these tumors, however, are benign and hence, are not considered as the chief cause of death. Further, sudden unexpected death caused by meningioma is very unusual. Moreover, the diagnosis of an incidental meningioma as the cause of sudden death may sometimes be difficult. In the present report, we describe an autopsy case of a sudden, unexpected death due to a large olfactory groove meningioma accompanied by severe cerebral edema and tonsillar herniation.
Autopsy ; Brain Edema ; Brain Neoplasms ; Cause of Death ; Central Nervous System ; Death, Sudden ; Diagnosis ; Encephalocele ; Meningioma*

Adult ; Brain Death ; diagnosis ; China ; Guidelines as Topic ; standards ; Humans

Brain death is a clinical diagnosis. The three cardinal findings in brain death are coma or unresponsiveness, absence of brainstem reflexes, and apnea. The clinical examination of the brainstem includes testing of brainstem reflexes, determination of the patient's ability to breath spontaneously, and evaluation of the motor response to pain. Spontaneous and reflex movements originating from the spinal cord neurons may occur in brain-dead patients. An awareness of spinal reflexes may prevent delays in and misinterpretations of the brain-death diagnosis. In some countries including Korea, our country, confirmatory tests are required by law when determining brain death. However, a confirmatory test is not usually mandatory except for patients in whom specific components of clinical testing cannot be evaluated reliably.
Apnea ; Brain Death* ; Brain Stem ; Brain* ; Coma ; Diagnosis ; Humans ; Jurisprudence ; Korea ; Neurons ; Reflex ; Spinal Cord

Brain death is a clinical diagnosis that implies irreversible loss of function of the entire brain, including the brainstem and both hemispheres. It is not uncommon for reflex and spontaneous movements to occur in patients with impending brain death during the process of determining brain death. When physicians charged with judging brain death witness such movements during this period, unless they know how common these movements are and what they mean, it will be difficult for them to make an appropriate determination of brain death. Movements following brain death have been reported in previous studies of various types, including cohort studies and case series or reports. However, only a few studies have employed verified diagnostic tools and neurological examinations as a standard protocol when diagnosing brain death. According to previous reports, the frequency of these movements ranges from 19.2% to 75.0% of all brain death cases. These reports have also described which movements are commonly seen. However, it is difficult to determine conclusively where these movements originate, i.e., in the spinal cord or in the cerebral motor cortex, and how such information should be considered in determining brain death. Although limited information is available on the characteristics and pathophysiological mechanism of these movements, it will help physicians to diagnose brain death correctly if they obtain sufficient knowledge about them.
Brain Death ; Brain Stem ; Brain ; Cohort Studies ; Diagnosis ; Humans ; Motor Cortex ; Neurologic Examination ; Reflex ; Spinal Cord

The role of the physician in diagnosis of death is a relatively recent one. for the most part it began only toward the end of the eighteenth century in Korea as western countrie. The criteria for diagnosis of death traditionally has been cessation of the circulation and respiration. The current model definition proposed for the Unite State is : An individual who has sustained either(1) irreversible cessation of circulatory and respiratory function or irreversible cessation of all functions of the entire brain is dead. A determination of death must be made in a clearnce with accepted medical standards. Recently transplantation of organ has been popularlly performod in the wored. For this surgery brain death has been necessary process. Brain death is a condition widely recognized by philosophers, theologians, the public and the law. Criteria for the determination of brain death have been progressively refined for almost 30years. They involve clinical evidence of the loss of brain function and various periods of observation, which can often be stortened by confirmatory tests, particularly cerebral blood flow studies, evoked potential studies, CT and electro-encephalography. Prompt declaration of brain is therefore possible. It is important for physicians to offer the possibility of organ donation to the patient's family both because organs are desperately needed and because many families desire this. However, in korea these process is very difficult because many people and lower have thought criteria of death is stop of heart. I advice we need model algorithm for determination of brain death are presented to aid the development of protocols for individual and hospital use before liver transplatation in korea.
Brain Death* ; Brain* ; Death ; Diagnosis ; Evoked Potentials ; Heart ; Humans ; Jurisprudence ; Korea* ; Liver ; Liver Transplantation ; Respiration ; Tissue and Organ Procurement