Related Experiment Video
Updated: May 20, 2026

11:05
SECONDs Administration Guidelines: A Fast Tool to Assess Consciousness in Brain-injured Patients
Published on: February 6, 2021
A patient with an acute confusional state.
Graham Baker1, Maurice Jackson, Sanjay Vydianath
1Department of Medicine, The Royal Wolverhampton NHS Trust, Wolverhampton, UK. grahambaker@doctors.org.uk
BMJ Case Reports
|July 17, 2012
Summary
A rare cause of acute confusion, limbic encephalitis, was diagnosed in a middle-aged man. Prompt treatment with immunoglobulin led to significant recovery, highlighting its treatable nature.
Area of Science:
- Neurology
- Immunology
Background:
- Limbic encephalitis is an inflammatory condition affecting the brain's limbic system.
- Acute confusion can be a presenting symptom, necessitating a thorough diagnostic workup.
Observation:
- A 49-year-old male presented with acute confusion, with initial examinations and blood tests being unremarkable.
- MRI brain scan revealed changes consistent with limbic encephalitis.
Findings:
- Despite negative antibody and malignancy screening (including para-neoplastic auto-antibodies and CT scans), the patient responded well to intravenous immunoglobulin therapy.
- Follow-up imaging demonstrated significant radiological improvement, and the patient returned to work.
Implications:
- This case underscores the importance of considering limbic encephalitis in patients presenting with acute confusion, particularly in middle-aged individuals.
- Early diagnosis and treatment with immunomodulatory therapies can lead to favorable outcomes and recovery.
Related Concept Videos
Acute Respiratory Failure-IV
Respiratory failure can manifest suddenly or gradually, characterized by a rapid decline in PaO2 and a rapid rise in PaCO2. This situation indicates a severe respiratory problem that may quickly become a life-threatening emergency. One of the early signs of hypoxemic Acute Respiratory Failure (ARF) is a change in mental status due to the brain's sensitivity to oxygen levels and changes in acid-base balance. Symptoms such as restlessness, confusion, and agitation suggest inadequate oxygen...
Hepatic Encephalopathy
DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...
Traumatic Brain Injury l: Introduction
DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...
Dissociative Amnesia
Dissociative amnesia is a complex psychological condition that manifests as an inability to recall personal information, often tied to traumatic or stressful events. Unlike general amnesia, individuals with this condition retain the ability to perform routine activities and procedural tasks, such as operating a phone or navigating public transportation, yet experience profound gaps in autobiographical memory. These lapses may encompass significant life events, such as suicide attempts or...
Amnesia
Amnesia is a condition marked by long-term memory loss, which impairs the ability to recall past events or create new memories.
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
Retrograde amnesia is marked by the loss of memories formed before the onset of the condition. Patients may recall distant past events but often forget those occurring shortly before the incident.
Anterograde...
The severity and duration of memory loss vary depending on the type and underlying cause. Amnesia is classified into two main types: retrograde and anterograde.
Retrograde amnesia is marked by the loss of memories formed before the onset of the condition. Patients may recall distant past events but often forget those occurring shortly before the incident.
Anterograde...
Dissociative Disorders
Dissociative disorders represent complex psychological conditions characterized by disruptions in consciousness, memory, identity, or perception. These disruptions cause individuals to experience a disconnection from their thoughts, emotions, and memories. The phenomenon is not merely an occasional lapse in attention but a profound alteration in mental functioning that can severely impact daily life.
Dissociative Fugue
A hallmark feature of dissociative disorders is the dissociative fugue...
Dissociative Fugue
A hallmark feature of dissociative disorders is the dissociative fugue...
![Semi-quantitative Assessment Using [18F]FDG Tracer in Patients with Severe Brain Injury](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F58641.jpg&w=3840&q=50)
