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Related Concept Videos

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-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-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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Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

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Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
987
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

3.9K
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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Heart Failure I: Introduction01:27

Heart Failure I: Introduction

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Heart failure refers to a clinical syndrome caused by structural or functional cardiac disorders that prevent the heart from pumping an adequate amount of blood to meet the body's metabolic needs. This condition often arises from myocardial infarction or ischemia, leading to decreased cardiac output, reduced tissue perfusion, impaired gas exchange, fluid volume imbalance, and decreased functional ability.Heart failure can result from disruptions in the mechanisms that regulate cardiac output...
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Related Experiment Video

Updated: Feb 10, 2026

Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
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Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure

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A simple prognostic index in acute heart failure.

Lanfranco Antonini1, Cristina Mollica2, Nadia Aspromonte1

  • 1Department of Cardiology, San Filippo Neri Hospital, ASL Roma 1, Rome, Italy.

Minerva Cardioangiologica
|May 30, 2018
PubMed
Summary

A new, simple prognostic index accurately predicts in-hospital mortality risk for acute heart failure patients. This tool aids rapid triage and treatment decisions upon hospital arrival.

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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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Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis
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Cutoff Value of Phase Angle by Bioelectrical Impedance Analysis at Admission as a Prognostic Factor in Patients with Acute Heart Failure
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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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Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis
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Author Spotlight: Unveiling Prognostic Indicators in Heart Failure - The Role of Phase Angle and Bioelectrical Impedance Analysis

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Area of Science:

  • Cardiology
  • Emergency Medicine
  • Clinical Prediction Models

Background:

  • Effective triage is crucial for hospitalized heart failure patients.
  • Existing prognostic scores are often too complex for bedside use.
  • Predicting outcomes guides therapy intensity in acute heart failure.

Purpose of the Study:

  • To develop and validate a novel, simple prognostic index for in-hospital mortality in acute heart failure.
  • To create a bedside tool for rapid risk assessment.

Main Methods:

  • A new prognostic index formula was created: 220 - age - heart rate + systolic blood pressure - (creatinine ×10).
  • The index was tested in 1628 acute heart failure patients from the Italian Registry on Heart Failure Outcome (IN-HF) study (Nov 2007-Dec 2009).
  • This was a prospective, multicenter, observational study.

Main Results:

  • The novel prognostic index independently predicted in-hospital mortality risk (AUC=0.74, P<0.0001).
  • Left ventricular ejection fraction (P=0.001), glycemia (P=0.019), and hemoglobin concentration (P=0.002) were also significant predictors.
  • The index proved effective in a large, multicenter cohort.

Conclusions:

  • A simple prognostic index using easily assessed variables can effectively predict mortality in acute heart failure upon hospital admission.
  • This new index is independent of left ventricular ejection fraction.
  • The tool facilitates timely and appropriate patient management.