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In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
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The human bronchi and bronchial tree play a crucial role in the respiratory system, facilitating the exchange of oxygen and carbon dioxide. Let's delve into the intricate structure and functions of these respiratory components.
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Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
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Chronic obstructive pulmonary isease (COPD) involves a group of progressive lung disorders characterized by persistent airflow limitation and chronic respiratory symptoms. Asthma-COPD Overlap Syndrome (ACOS), encompassing features of both asthma and Chronic obstructive pulmonary disease (COPD), is a group of progressive lung disorders that includes chronic bronchitis, emphysema, and refractory (non-reversible) asthma. ACOS leads to complex clinical presentations that combine the inflammatory...
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COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
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Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
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A Traditional Chinese Medicine Characteristic Therapy for Bronchial Asthma: Moxibustion
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Acute Bronchitis.

Scott Kinkade1, Natalie A Long1

  • 1University of Missouri School of Medicine, Columbia, MO, USA.

American Family Physician
|December 9, 2016
PubMed
Summary
This summary is machine-generated.

Most coughs are from acute bronchitis, usually viral, and don't need antibiotics. Focus on symptom relief and patient education to avoid unnecessary antibiotic prescriptions for this common respiratory illness.

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Area of Science:

  • Internal Medicine
  • Pulmonology
  • Infectious Diseases

Background:

  • Cough is a primary reason for ambulatory care visits in the US.
  • Acute bronchitis involves airway inflammation without pneumonia, often viral.
  • Distinguishing bronchitis from pneumonia and pertussis is crucial for appropriate management.

Purpose of the Study:

  • To outline the diagnosis and management of acute bronchitis.
  • To emphasize the viral etiology and self-limiting nature of acute bronchitis.
  • To advocate for reduced unnecessary antibiotic prescribing for acute cough.

Main Methods:

  • Clinical diagnosis of acute bronchitis.
  • Differential diagnosis including pneumonia and pertussis.
  • Review of antibiotic efficacy and adverse effects.

Main Results:

  • Acute bronchitis cough typically resolves within 2-3 weeks.
  • Antibiotics offer minimal benefit (approx. 0.5 days shorter illness) and carry risks.
  • Viral infections are the predominant cause of acute bronchitis.

Conclusions:

  • Acute bronchitis is usually viral and self-limiting, not requiring antibiotics.
  • Patient education on the natural course and symptomatic treatment is key.
  • Strategies like delayed prescriptions and clear communication can reduce inappropriate antibiotic use.