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Related Concept Videos

Acute Respiratory Failure-III01:30

Acute Respiratory Failure-III

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Hypercapnic respiratory failure, also known as Type 2 or ventilatory respiratory failure, is a severe condition characterized by the body's inability to effectively remove carbon dioxide (CO2) from the bloodstream. It leads to an arterial CO2 pressure (PaCO2) exceeding 45 mmHg and a blood pH above 7.35. This situation indicates that the body's ventilatory demand, or the ventilation needed to maintain normal PaCO2 levels, surpasses its supply or the maximum gas flow achievable without...
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Acute Respiratory Failure-II01:21

Acute Respiratory Failure-II

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Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include:
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Acute Respiratory Failure-IV01:23

Acute Respiratory Failure-IV

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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...
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Acute Respiratory Failure-I01:21

Acute Respiratory Failure-I

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Acute respiratory failure is a condition characterized by the inability of the lungs to perform their primary function: gas exchange. This failure leads to insufficient oxygen levels (hypoxemia) in the blood, elevated carbon dioxide levels (hypercapnia), or both, causing critical impairment in organ function.
Definition: It is defined by specific criteria based on blood gas measurements. Hypoxemia happens when the partial pressure of oxygen (PaO2) falls below 60 mmHg. At the same time,...
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Acute Respiratory Failure-V01:29

Acute Respiratory Failure-V

369
The treatment for acute respiratory failure varies based on factors like the underlying cause, overall health, and severity. A collaborative healthcare team is essential for early detection, often through arterial blood gas analysis. Identifying the cause is the primary goal, with treatment strategies adjusted for ventilation/perfusion (V/Q) mismatch, shunting, or diffusion impairment.
Ensure that patients are monitored continuously for their response to therapy, including changes in...
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Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.01:25

Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.

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Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
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Related Experiment Video

Updated: Dec 22, 2025

Surfactant Depletion Combined with Injurious Ventilation Results in a Reproducible Model of the Acute Respiratory Distress Syndrome ARDS
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CANOMAD syndrome with respiratory failure.

András Salamon1, Lívia Dézsi1, Bence Radics2

  • 1Department of Neurology, University of Szeged, Szeged.

Ideggyogyaszati Szemle
|May 5, 2020
PubMed
Summary

Chronic ataxic neuropathy, ophthalmoplegia, M-protein agglutination, disialosyl antibodies (CANOMAD) syndrome is a rare neuropathy. Early potent immunosuppression may improve patient outcomes for this progressive condition.

Keywords:
CANOMAD syndromeataxic neuropathyrespiratory failurerituximab

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Area of Science:

  • Neurology
  • Immunology
  • Pathology

Background:

  • Chronic ataxic neuropathy, ophthalmoplegia, M-protein agglutination, disialosyl antibodies (CANOMAD) syndrome is a rare IgM paraprotein-associated polyneuropathy.
  • It involves IgM paraproteins targeting disialylated epitopes, leading to dorsal root ganglionopathy and nerve infiltration.

Observation:

  • A 57-year-old man presented with progressive ataxia, sensory loss, and limb clumsiness.
  • Laboratory findings revealed IgM monoclonal components and anti-disialosyl antibodies.
  • Nerve conduction studies showed severe sensorimotor demyelinating polyneuroradiculopathy.

Findings:

  • Despite treatment with intravenous immunoglobulin (IVIg) and rituximab, the patient's condition deteriorated, leading to respiratory failure.
  • Neuropathological examination confirmed dorsal column and dorsal root atrophy with inflammatory cell infiltration.

Implications:

  • This case highlights the severe progression of CANOMAD syndrome, even with standard treatments.
  • Early and potent immunosuppressive therapy is suggested to potentially alter the disease course and improve quality of life for CANOMAD patients.