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Related Concept Videos

Acute Respiratory Failure-I01:21

Acute Respiratory Failure-I

1.0K
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-II01:21

Acute Respiratory Failure-II

1.1K
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-V01:29

Acute Respiratory Failure-V

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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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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...
887
Acute Respiratory Failure-IV01:23

Acute Respiratory Failure-IV

569
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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Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
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Induction and Phenotyping of Acute Right Heart Failure in a Large Animal Model of Chronic Thromboembolic Pulmonary Hypertension
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Immunodysfunction in Acute-on-Chronic Liver Failure.

Christian M Lange1, Richard Moreau2

  • 1Medizinische Klinik 1, Klinikum der Johann Wolfgang Goethe-Universität, Frankfurt/Main, Germany.

Visceral Medicine
|October 23, 2018
PubMed
Summary
This summary is machine-generated.

Acute-on-chronic liver failure (ACLF) is closely linked to immune dysfunction. Understanding this immunopathology may lead to new treatments for severe infections in patients with liver cirrhosis and ACLF.

Keywords:
Bacterial translocationGranulocyte colony-stimulating factor, G-CSFInterleukin-22Liver cirrhosisSystemic inflammation

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Generation of a Rat Model of Acute Liver Failure by Combining 70% Partial Hepatectomy and Acetaminophen
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Generation of a Rat Model of Acute Liver Failure by Combining 70% Partial Hepatectomy and Acetaminophen
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Area of Science:

  • Hepatology
  • Immunology
  • Critical Care Medicine

Background:

  • Acute-on-chronic liver failure (ACLF) is increasingly recognized as having a significant link with immune system dysfunction.
  • Liver cirrhosis contributes to a chronic inflammatory state through factors like hypoxia, cell death, and bacterial translocation.

Purpose of the Study:

  • To explore the intricate relationship between ACLF and immunodysfunction.
  • To identify precipitating events that exacerbate inflammation in ACLF.
  • To highlight the implications of chronic inflammation for immune suppression in liver disease.

Main Methods:

  • A comprehensive literature search was conducted using PubMed.
  • Abstract databases from relevant scientific congresses were also searched.

Main Results:

  • Cirrhosis characteristics promote chronic inflammation, which, when amplified by events like infections, can lead to ACLF-defining organ failures.
  • Chronic systemic inflammation in ACLF patients is associated with profound immunosuppression, increasing the risk of severe infections.
  • Emerging therapeutic strategies including albumin substitution, IL-22, G-CSF, antibiotics, and anticoagulation show promise for ACLF prevention and treatment.

Conclusions:

  • A deeper understanding of ACLF immunopathology is crucial for developing targeted therapies.
  • Future research may lead to specific treatments to prevent and manage ACLF and its associated infections.