Table I.
Patients' demographic, clinical, and structural imaging data
VS1 | VS2 | VS3 | VS4 | VS5 | VS6 | VS7 | VS8 | MCS | LIS1 | LIS2 | |
---|---|---|---|---|---|---|---|---|---|---|---|
Gender (age, years) | Male (62) | Male (21) | Male (16) | Female (69) | Male (82) | Male (87) | Male (38) | Male (63) | Male (24) | Female (24) | Male (20) |
Etiology | Brainstem hemorrhage | Trauma | Trauma | Anoxia | Vascular encephalopathy | Trauma | Anoxia | Anoxia | Trauma | Brainstem stroke | Trauma |
Time of fMRI (days after insult) | 32 | 170 | 615 | 61 | 26 | 7 | 282 | 29 | 301 | 850 | 1,475 |
Outcome at 12 months | Dead | VS | VS | VS | Dead | Dead | VS | MCS | Still MCS | LIS | LIS |
Auditory functiona | None | Startle reflex | Startle reflex | Startle reflex | None | None | Startle reflex | Startle reflex | Startle reflex | Consistent movement to command | Consistent movement to command |
Visual functiona | Blink to threat | None | None | None | None | None | None | Blink to threat | Visual pursuit | Object recognition | Object recognition |
Motor functiona | Flexion to pain | Abnormal posturing | Abnormal posturing | Flexion to pain | Flexion to pain | Flexion to pain | Abnormal posturing | Flexion to pain | Flexion to pain | Flexion to pain | Flexion to pain |
Verbal/ Oromotor functiona | None | Oral reflexes | Vocalization | Oral reflexes | Oral reflexes | Oral reflexes | Oral reflexes | Vocalization | Oral reflexes | Oral Movement | Vocalization |
Communicationa | None | None | None | None | None | None | None | None | None | Functional accurate | Functional accurate |
Arousala | Without stimulation | Without stimulation | Without stimulation | With stimulation | With stimulation | With stimulation | With stimulation | Without stimulation | Without stimulation | Attention | Attention |
EEG background activity | Diffuse theta‐delta, | Right‐lateralized theta‐delta, nonreactive | Irregular diffuse theta‐delta | Left lateralized diffuse theta‐delta | Symmetric theta‐delta, nonreactive | Irregular diffuse theta‐delta, nonreactive | Left‐lateralized theta, nonreactive | Diffuse theta‐delta, nonreactive | Not available | Diffuse theta, transient delta | Not available |
Lesions on structural MRI | Pontine hemorrhage extending to midbrain | Diffuse axonal injury. Bilateral subdural frontal hygroma | Diffuse atrophy with secondary hydrocephalus. Bilateral lesions of lenticular nucleus thalamus, and parahippocampal structures | Diffuse bilateral white matter atrophy, caudate, thalamus, and parahippocampal lesions | Diffuse cortical and subcortical atrophy. Bilateral basal ganglia and white matter lesions | Subarachnoid hemorrhage, brainstem, left lenticular nucleus, temporal and multifocal frontoparietal contusions | Diffuse white matter lesions | Posterior occipitoparietal ischemia | Corpus callosum, left thalamus, pontine, bilateral frontoparietal lesions | Centro‐ protuberential lesion | Pontine, midbrain, cerebellum, left thalamus lesions |
VS, vegetative state; LIS, locked‐in syndrome; MCS, minimally conscious state.
Based on Coma Recovery Score‐Revised assessment.