scholarly journals Jahi McMath, a New Disorder of Consciousness

2021 ◽  
Vol 21 (1) ◽  
pp. 137-154
Author(s):  
Calixto Machado

In this paper, I review the case of Jahi McMath, who was diagnosed with brain death (BD). Nonetheless, ancillary tests performed nine months after the initial brain insult showed conservation of intracranial structures, EEG activity, and autonomic reactivity to the “Mother Talks” stimulus. She was clinically in an unarousable and unresponsive state, without evidence of self-awareness or awareness of the environment. However, the total absence of brainstem reflexes and partial responsiveness rejected the possibility of a coma. Jahi did not have uws because she was not in a wakefulness state and showed partial responsiveness. She could not be classified as a LIS patient either because LIS patients are wakeful and aware, and although quadriplegic, they fully or partially preserve brainstem reflexes, vertical eye movements or blinking, and respire on their own. She was not in an MCS because she did not preserve arousal and preserved awareness only partially. The CRS-R resulted in a very low score, incompatible with MCS patients. mcs patients fully or partially preserve brainstem reflexes and usually breathe on their own. MCS has always been described as a transitional state between a coma and UWS but never reported in a patient with all clinical BD findings. This case does not contradict the concept of BD but brings again the need to use ancillary tests in BD up for discussion. I concluded that Jahi represented a new disorder of consciousness, non-previously described, which I have termed “reponsive unawakefulness syndrome” (RUS).

2004 ◽  
Vol 23 (10) ◽  
pp. 503-505 ◽  
Author(s):  
Frédéric Marrache ◽  
Bruno Megarbane ◽  
Stéphane Pirnay ◽  
Abdel Rhaoui ◽  
Marie Thuong

Assessing brain death may sometimes be difficult, with isoelectric EEG following psychotrope overdoses or normal cerebral blood flow (CBF) persisting despite brain death in the case of ventricular drainage or craniotomy. A 42-year-old man, resuscitated after cardiac arrest following a suicidal ingestion of ethanol, bromazepam and zopiclone, was admitted in deep coma. On day 4, his brainstem reflexes and EEG activity disappeared. On day 5, his serum bromazepam concentration was 817 ng/ml (therapeutic: 80-150). The patient was unresponsive to 1 mg of flumazenil. MRI showed diffuse cerebral swelling. CBF assessed by angiography and Doppler remained normal and EEG isoelectric until he died on day 8 with multiorgan failure. There was a discrepancy between the clinically and EEG-assessed brain death, and CBF persistence. We hypothesized that brain death, resulting from diffuse anoxic injury, may lead, in the absence of major intracranial hypertension, to angiographic misdiagnoses. Therefore, EEG remains useful to assess diagnosis in such unusual cases.


2014 ◽  
Vol 23 (4) ◽  
pp. 481-481
Author(s):  
JOHN J. PARIS ◽  
BRIAN M. CUMMINGS ◽  
M. PATRICK MOORE
Keyword(s):  

Author(s):  
Rogan Corbridge ◽  
Nicholas Steventon

Sleep physiology 286 Assessment of sleep-disordered breathing 288 Sleep studies 290 Sleep-disordered breathing spectrum 291 Medical treatment 292 CPAP therapy 293 Surgery for sleep-disordered breathing 294 Friedman Classification System 295 —20% of sleep time (rapid eye movements seen under closed lids during sleep) —80% of sleep time. Subdivided into stages by EEG activity:...


2017 ◽  
Vol 06 (04) ◽  
pp. 240-244 ◽  
Author(s):  
Kyle Galbraith ◽  
Kyle Brothers ◽  
Trevor Bibler

AbstractWho decides when a child is dead? The story of Jahi McMath has brought this question into focus for pediatric intensivists, ethicists, and the American public. In this article, we address this question by arguing that medical professionals do not have an obligation to acquiesce when families insist upon postmortem therapies. To do so may harm the dignity of the child by subjecting him or her to procedures that objectify the body, damage the child's reputation, and violate his or her privacy. Applying this answer to the real world of pediatric intensive care, we suggest practices meant to preserve the dignity of the child while accepting that the family is struggling to understand the tragedy. Muddled communication or an unyielding attitude will fail to help the family understand and cope with the death of their young loved one. Clear and honest communication—in conjunction with an empathetic disposition—can improve pre- and postmortem care for both patient and family.


2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Li Tan ◽  
Ning Wang ◽  
Zhilin Gu ◽  
Jiebin Zhu ◽  
Chunyan Liu ◽  
...  

Orexin is an important neuropeptide that stimulates cortical activation and arousal and is involved in the regulation of wakefulness and arousal. Our previous meta-analysis showed that acupuncture fared well in the treatment of TBI-induced DOC in which “shuigou (DU 26)” was the most important and frequent point targeted. In the present study, we investigated whether electroacupuncture (EA) promotes TBI-induced unconsciousness wakefulness via orexin pathway. A TBI rat model was established using a control cortical impact (CCI) model. In the stimulated group, TBI rats received EA (15 Hz, 1.0 mA, 15 min). In the antagonist group, TBI rats were intraperitoneally injected with the orexin receptor 1 (OX1R) antagonist SB334867 and received EA. Unconsciousness time was observed in each group after TBI, and electrocorticography (ECoG) was applied to detect rats’ EEG activity. Immunohistochemistry, enzyme-linked immunosorbent assay, and western blot were used to assess the levels of orexin-1(OX1) and OX1R expression in the mPFC. We show that duration of unconsciousness and the ratio of delta power in ECoG in the EA group were significantly reduced compared with those in the TBI group. EA could increase OX1 and OX1R expression in the mPFC and reduced the loss of orexin-producing neurons in LHA. However, all the efficacy of EA was blocked by the OX1R antagonist SB334867. Our findings suggest that EA promotes the recovery of consciousness of TBI-induced unconscious rats via upregulation of OX1and OX1R expression in mPFC.


2015 ◽  
Vol 5 (3) ◽  
pp. 18-22
Author(s):  
Norman K. Swazo

How does one account for “the discrepancy” between the evidence of total and irreversible brain death and the current evidence of recovered brain function?  This is the question that is raised by recent legal action in the case of 13-year old Jahi McMath, certified dead on the basis of neurological criteria but maintained in mechanical ventilation and medical/nursing care since then at the insistence of the parents who claim she is alive.  In this brief discussion, the medical and legal issues are reviewed.  Here the argument is advanced that this is not a case that means there should be a re-evaluation of the neurological criteria for determination of brain death.  Instead, this case is to be understood as the exception that proves the rule. DOI: http://dx.doi.org/10.3329/bioethics.v5i3.21533 Bangladesh Journal of Bioethics 2014; 5(3):18-22


2021 ◽  
pp. 088307382110358
Author(s):  
D. Alan Shewmon ◽  
Noriko Salamon

Jahi McMath was diagnosed brain dead on 12/12/2013 in strict accordance with both the pediatric and adult Guidelines, reinforced by 4 isoelectric electroencephalograms and a radionuclide scan showing intracranial circulatory arrest. Her magnetic resonance imaging scan 9 1/2 months later surprisingly showed gross integrity of cortex, basal ganglia, thalamus, and upper brainstem. The greatest damage was in the white matter, which was extensively demyelinated and cystic, and in the lower brainstem, most likely from partial herniation that resolved. The apparent integrity of gray matter and the ascending reticular activating system may have provided a potential structural basis for the reemergence of some limited brain functions, while the white matter and lower brainstem lesions would have caused severe motor disability, brainstem areflexia and apnea. The findings indicate that there could never have been a period of sustained intracranial circulatory arrest. Rather, at the time of brain death diagnosis, low blood flow below the detection threshold of the radionuclide scan was sufficient to maintain widespread neuronal viability, though insufficient to support synaptic function. Her case represents the first indirect confirmation of the reality and clinical relevance of global ischemic penumbra, hypothesized in 1999 as a generally unacknowledged and possibly common brain death mimic.


1989 ◽  
Vol 46 (6) ◽  
pp. 602-602 ◽  
Author(s):  
C. J. G. Lang
Keyword(s):  

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