Reduced Consciousness: Causes & Reasons

Possible Causes for Reduced Consciousness

Definition (MSH) Disorder characterized by symptoms of CATATONIA; HYPOVENTILATION; DYSKINESIAS; ENCEPHALITIS; and SEIZURES followed by a reduced CONSCIOUSNESS. [fpnotebook.com]

[…] levels of consciousness, dyskinesias, autonomic dysfunction and hypoventilation. [ncbi.nlm.nih.gov]

Generally, the diagnosis of anti-NMDAR encephalitis in human patients is based on those who have (i) clinical signs of encephalitis (epileptic seizures, reduced levels of [ncbi.nlm.nih.gov]

Vasovagal Syncope

INTRODUCTION: Syncope is an abrupt loss of consciousness in response to reduced perfusion to the brain. [ncbi.nlm.nih.gov]

The resulting brady-cardia reduces cerebral blood flow to a level inadequate to maintain consciousness. [aafp.org]

Subarachnoid Hemorrhage

On day 8, the patient experienced a secondary neurological deterioration with reduced consciousness and global aphasia. [ncbi.nlm.nih.gov]

LP is contraindicated in patients with papilloedema, focal neurological deficit or reduced consciousness. [doi.org]

An 86-year-old woman was admitted to our hospital with fluctuating consciousness after hitting her head during a fall. [ncbi.nlm.nih.gov]

Hypoglycemia

consciousness, with two fatalities (116). [care.diabetesjournals.org]

consciousness, with two fatalities ( 116 ). [care.diabetesjournals.org]

Family members or your carer can be trained to carry out the injection, which should be used if you lose consciousness because of severe hypoglycaemia. [nhsinform.scot]

Mucormycosis

These are late symptoms with a poor prognosis and usually are followed by reduced consciousness. [patient.info]

Encephalitis

Clinical features included reduced consciousness, fever/hypothermia, headaches, seizures, and focal neurology. [ncbi.nlm.nih.gov]

The common features that emerge are classically encephalitic; fever, headache, reduced consciousness, and seizures. [dx.doi.org]

A syndrome with prominent psychiatric symptoms was described in 2005, consisting in memory loss, reduced level of consciousness and central hypoventilation in four young women [mendeley.com]

Traumatic Brain Injury

It can also be a state of reduced consciousness, so that the patient may move about or respond to pain. Not all patients with brain injury are comatose. [hopkinsmedicine.org]

[…] of reduced consciousness, so that the patient may move about or respond to pain. [columbianeurology.org]

If loss of consciousness or confusion and disorientation lasts less than 30 minutes the brain injury is classed as mild. [psychcentral.com]

Hyponatremia

consciousness, 3, 5 as summarised in table 1. [doi.org]

[…] urine output Profuse or sudden sweating Muscle cramps or spasms Muscle weakness Trouble concentrating Mental confusion Changes in personality Seizures Loss of consciousness [verywellhealth.com]

A patient is likely to present with more severe symptoms if they have acute-onset hyponatraemia as cerebral oedema develops secondary to the reduced serum osmolality. [doi.org]

Hypovolemia

The respiratory rate is increased as well, while the systolic pressure is as reduced as 70 mmHg or even less. [byebyedoctor.com]

Examine the patient for abnormalities in the level of consciousness. Confusion, agitation, migraine, and a shift in consciousness may suggest probable hypovolemia. [nursestudy.net]

D: Disability or neurological changes include decreased level of consciousness. [acls-algorithms.com]

Dehydration

Hyponatremia may be presented with nausea, vomiting, headache, irritability, lethargy, confusion, muscle cramps, convulsions, disorientation, and reduced consciousness and [intechopen.com]

Signs and symptoms of severe dehydration in an adult include: increased apathy/weakness becoming confused or losing consciousness reduced or no urine output pale appearance [nidirect.gov.uk]

If body weight is reduced by more than 10%, this is extremely serious. [hse.ie]

Brain Concussion

[…] concussion, the brain enters a state of increased blood flow, reduced metabolism, and altered vascular responsiveness to changes in systemic blood pressure, arterial carbon [apsf.org]

Severe concussion can also lead to loss of consciousness, which is a commonly-used criterion for assessing TBI in most neurological assessments. [drpawluk.com]

or losing consciousness entirely. [bbc.com]

Sepsis

[…] level of consciousness despite resuscitation respiratory rate of 25 breaths per minute or above, or a new need for mechanical ventilation lactate not reduced by more than [pathways.nice.org.uk]

Failure to respond is indicated by any of: systolic blood pressure persistently below 90 mmHg reduced level of consciousness despite resuscitation respiratory rate over 25 [nice.org.uk]

[…] level of consciousness will be classified as “uncomplicated infection” SOFA is a complicated score that is routinely calculated in some ICUs, but is not explicitly used in [lifeinthefastlane.com]

Cardiac Arrhythmia

In the first few minutes, the greatest concern is that blood flow to the brain will be reduced so drastically that a person will lose consciousness. [webmd.com]

Meningitis

LP is performed immediately provided there are no signs of raised intracranial pressure (reduced consciousness, very bad headache, frequent fits) or focal neurology. [patient.info]

LP is performed immediately provided there are no signs of raised intracranial pressure (reduced consciousness, very bad headache, frequent fits), focal neurology, severe [patient.info]

“My family were beginning to really worry about my deteriorating condition and reduced level of consciousness and at about 8pm my dad received a phone call from our GP who [irishtimes.com]

Minimally Conscious State

However, relative to traumatic brain injury, nontraumatic injury is known to be associated with a reduced likelihood of regaining overtly measurable levels of consciousness [ncbi.nlm.nih.gov]

Obtundation, a dulled or reduced level of alertness or consciousness. *-780.12 Minimally conscious state Non-communicative patients with severly altered consciousness showing [internationalbrain.org]

People who have a slow recovery of consciousness continue to have a reduced level of self-awareness or awareness of the world around them. [brainline.org]

Carbamoyl Phosphate Synthetase Deficiency

Thus, they are frequently accompanied by reduced consciousness, which may range from lethargy and somnolence to coma, and seizures. [symptoma.com]

Similar to neonates suffering from hyperammonemia, elder patients may experience seizures and present with a reduced level of consciousness. [symptoma.com]

Wernicke-Korsakoff Syndrome

consciousness, hypotension and hypothermia Aetiology Associated with alcohol addiction in the vast majority of cases Alcohol impairs the GI absorption and hepatic storage [almostadoctor.co.uk]

[…] results in: Ataxia Ophthalmoplegia Nystagmus – may be horizontal and vertical Conjugate gaze problems Confusion Short Term Memory Loss In some patients it may also cause reduced [almostadoctor.co.uk]

Epilepsy

Others may lose consciousness and have repetitive jerking of their arms and legs. [newsnetwork.mayoclinic.org]

Because an abnormal heart rhythm can greatly reduce blood flow (and therefore oxygen supply) to the brain, it can trigger loss of consciousness and occasionally a seizure [msdmanuals.com]

Medication to reduce or eliminate seizures usually is the first step in treatment. [newsnetwork.mayoclinic.org]

Reye Syndrome

Changes in mental status can include aggressiveness, agitation, amnesia, hallucinations (seeing and hearing things) and progressively reduced consciousness until the person [wikihow.com]

consciousness, some progressing to coma. [uspharmacist.com]

Careful monitoring of a child’s level of consciousness and liver function is established. [health24.com]

Brain Neoplasm

In people with this type of herniation, consciousness is reduced. The side of the body opposite the tumor may be paralyzed. [merckmanuals.com]

Diabetic Ketoacidosis

Case presentation A 54-year-old Kenyan man presented with a 3-day history of reduced appetite, weakness and reduced level of consciousness. [dx.doi.org]

Signs of acidosis- Shallow and rapid breathing, abdominal tenderness and altered consciousness. [myvmc.com]

As mentioned above, potassium replacement is essential to reduce the risk of hypokalaemia and cardiac arrythmia. [slideplayer.com]

Intracranial Hemorrhage

If they don't lose consciousness, they may be confused and have an altered mental state. [symptoma.com]

Generalized features resulting from increased intracranial pressure include headache, nausea and vomiting, reduced level of consciousness, seizures, and acute hypertension [reliasmedia.com]

Patients sustaining IH present with headaches, nausea and vomiting, and possibly with seizures, neurological deficits and a reduced general condition. [symptoma.com]

Subdural Hematoma

Disturbed consciousness steadily deteriorated. [hindawi.com]

Using qEEG, the alpha/delta ratio was found to be reduced. This ratio significantly worsened after the syncopal event on day 2. [ahajournals.org]

In the acute stage, glycerol was administered to reduce edema; CTs after 48 and 72 hours showed an increase of subdural hematoma and massive contusion of the frontal lobe. [hindawi.com]

Uremia

Emergency symptoms include: Blood in the stool No urination Reduced alertness (consciousness) Call your provider if you have had an episode of HUS and your urine output decreases [medlineplus.gov]

Cerebral Malaria

All patients had reduced consciousness and various degrees of cortical swelling at baseline. The latter was predominately posterior in distribution. [msphere.asm.org]

Reduced urine output suggesting kidney failure. Some patients may develop squint. Coma lasting for more than 30 minutes after seizure. Rapid acidotic breathing. [tandurust.com]

High grade Fever Chills accompanying fever Headache Body ache Low blood pressure Anemia Jaundice Enlarged spleen and liver Altered consciousness Delirium Convulsion Blood [tandurust.com]

Hypernatremia

consciousness There is also the possibility that some suffering individuals may enter into a coma. [primehealthchannel.com]

Examination on admission to critical care revealed a reduced Glasgow Coma Score (GCS) of 10, reduced blood pressure (95/50 mmHg) and evidence of severe dehydration. [acutecaretesting.org]

Hypernatraemia reduces lithium elimination and increases the risk of toxicity. [ 9 ] Request urine and serum osmolality if DI is suspected; in this case there would be a high [patient.info]

Plasmodium Falciparum Malaria

He eventually collapsed and was brought to hospital with a reduced level of consciousness. [ashpublications.org]

CM is diagnosed in a patient with P. falciparum identified on a peripheral blood smear, with one or more neurological symptoms including reduced consciousness, coma (Blantyre [tandfonline.com]

Hypothermia

Lips may turn blue and consciousness may be reduced. [altitude.org]

At 82 degrees, a person may lose consciousness. Anything below 70 degrees is considered profound hypothermia, and could be fatal. [newser.com]

The person may be unable to regain consciousness. Lowering the body temperature right away after cardiac arrest can reduce damage to the brain. [hopkinsmedicine.org]

Idiopathic Generalized Epilepsy

Luo and colleagues showed reduced FC in SN in children with AS (Luo et al., 2014b). [frontiersin.org]

Luo and colleagues showed reduced FC in SN in children with AS ( Luo et al., 2014b ). [journal.frontiersin.org]

Previous studies demonstrated altered functional connection in SN in various consciousness states such as vegetative state and coma conditions (Vincent et al., 2007; Horovitz [frontiersin.org]

Conversion Disorder

[…] episodes of unresponsiveness may occur resembling fainting (syncope) or coma Sensory symptoms altered, reduced or absent skin sensations blindness, or altered/reduced vision [traumadissociation.com]

Psychogenic nonepileptic seizures ( PNES ) These pseudoseizures may resemble epileptic seizures, and may include abnormal generalized limb shaking with impaired/ loss of consciousness [traumadissociation.com]