Asthma wikipedia - Search

  1. Asthma - Overview

    Verified Expert
    Also known as: bronchial asthma
    A lung disorder characterized by narrowing of the airways, the tubes which carry air into the lungs, that are inflamed and constricted, causing shortness of breath, wheezing and cough.
    Condition Highlight
    Urgent medical attention is usually recommended in severe cases by healthcare providers
    How common is condition?
    Very common (More than 3 million cases per year in US)
    Is condition treatable?
    Treatable by a medical professional
    Does diagnosis require lab test or imaging?
    Requires lab test or imaging
    Time taken for recovery
    Can last several years or be lifelong
    Condition Highlight
    Family history may increase likelihood
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    Causes

    Verified Expert

    The causes of asthma are unknown, but it is most probably due to either genetic or environmental factors. Certain factors are known to trigger asthmatic symptoms they are:

    • Allergens like dust mites, animal dander, pollen, molds, cigarette smoke, chemical pollutants, and cold air
    • Sinusitis
    • Extreme emotional responses and physical exercise
    • Medications like aspirin, beta-blockers or NSAIDs
    • Gastro esophageal reflux disease
    • Other factors like dietary insufficiencies in vitamins C and E, and omega-3 fatty acids
    • Foods with sulfites and preservatives may also trigger symptoms

    Few factors are associated with the development of asthma, they are

    • Motherhood at a young age
    • Poor maternal nutrition
    • Lack of breastfeeding
    • Premature birth
    • Low birth weight
    • Smoking
    • Overweight

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    Symptoms

    Verified Expert
    Contact your provider if experiencing new, severe, or persistent symptoms.

    Symptoms of asthma vary from person to person. There could be sudden outbursts of symptoms. Most common symptoms of asthma are:

    • Dyspnea or difficult breathing
    • Wheezing
    • Chest tightness
    • Persistent coughing, more commonly at night. Most commonly cough with mucus or phlegm

    During Asthma attack, the patient presents below symptoms:

    • Very low blood pressure
    • Abnormally rapid breathing
    • Wheezing sounds may accompany both inspiration and expiration or expiration alone

    If the person is suffering from asthma for a prolonged period, Respiratory failure, a syndrome when the blood vessels around the air sacs fail to exchange gases of carbon dioxide and oxygen efficiently, may occur. The symptoms of Respiratory failure include:

    • Hyperinflation: Patients with long standing uncontrolled asthma may have a barrel-shaped chest caused by hyperinflation of lungs
    • Loss of consciousness
    • Skin and mucous membrane turning to blue in color
    • Low blood pressure, which could lead to heart attack
    • Oxygen saturation dropping less than 90%

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    Is asthma a long-term disease of the lungs?
    Asthma is a long-term disease of the lungs. It causes your airways to get inflamed and narrow, which makes it hard to breathe. Severe asthma can cause trouble talking or being active. You might hear your doctor call it a chronic respiratory disease. Some people refer to asthma as "bronchial asthma."
    webmd.com

    Treatment

    Verified Expert

    Asthma can be managed with medications. Medications vary depending on the severity of symptoms. The medications are administered through inhalers or nebulizers. The medication through tablets helps manage the condition.

    Medication

    Inhaled short-acting beta-2-agonists: Quick relief inhalators reduces the symptoms like shortness of breath. Usually prescribed for quick relief of symptoms.

    Albuterol . Terbutaline

    Inhaled steroids: Help in reducing the airway inflammation. Usually given for severe symptoms.

    Fluticasone . Budesonide

    Inhaled long-acting beta-2-agonists: Help in dilation of airways. Usually prescribed for chronic condition.

    Formoterol . Salmeterol

    Leukotriene-modifying agents: Help in both dilation of airways and reducing inflammation. For managing symptoms.

    Zafirlukast . Zileuton

    Xanthines: Help in dilation of airways. Usually prescribed if sudden shortness of breath occurs.

    Theophylline

    Beta-2-agonist tablets: Help in dilation of airways.

    Levalbuterol . Metaproterenol

    IL-4 antagonist: Reduces inflammation of airways. Usually given in moderate to severe cases.

    Reslizumab

    Steroid tablets: Help in reducing the airway inflammation. Usually given in severe uncontrolled cases.

    Prednisone . Beclomethasone dipropionate

    IL-5 antagonist: Reduces inflammation of airways. Usually given in severe uncontrolled cases.

    Mepolizumab

    IL-5 receptor antagonist: Reduces inflammation of airways. Usually given in severe uncontrolled cases.

    Benralizumab

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    Microsoft Start Health

    Diagnosis

    Verified Expert
    One or more of these tests may be recommended by your medical provider.
    A careful and detailed history as well as a clinical examination helps in diagnosis of asthma. The doctor may conduct some tests to confirm the diagnosis and to exclude other lung conditions.

    Common tests & procedures

    Peak flow rate: Peak flow assesses airway obstruction by measuring the air out of lungs while breathing. The air flow will be lower in asthmatic patients.

    Spirometry: This test is done to confirm the presence of airway obstruction. This estimates the functioning of the lungs by measuring the air inhaled and the air exhaled and how fast the air is exhaled.

    Allergy blood test: This is done to identify triggers. The allergens, allergy causing substances could be pets, pollen, dust or chemical fumes. If allergy triggers are identified, allergy shots may be recommended.

    Methacholine challenge test: Methacholine is known to trigger asthma. This test is conducted when spirometry results are normal.

    Sputum eosinophils: The count of eosinophils, a type of white blood cells, found in the sputum (mixture of mucus and saliva), helps in the diagnosis.

    See more
    Source: Focus Medica. For informational purposes only. Consult a medical professional for advice. | Disclaimer: Opinions are from external health professionals and should not be considered as Microsoft's opinion or a substitute for professional help. Consult a health professional for medical advice.
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    Table of Contents
    Overview
    Causes
    Symptoms
    Is asthma a long-term disease of the lungs?
    Treatment
    Health guide
    Diagnosis
     
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  1. Wikipedia
    https://en.wikipedia.org › wiki › Asthma

    Asthma - Wikipedia

    • Pathophysiology

      During an asthma episode, inflamed airways react to environmental triggers …

    • Asthma trigger

      Examples of asthma triggers. Asthma triggers are factors or stimuli that …

    • Epidemiology

      Asthma affects approximately 7% of the population of the United States and …

    See results only from en.wikipedia.org
     
  2. Wikipedia
    https://simple.wikipedia.org › wiki › Asthma

    Asthma - Simple English Wikipedia, the free encyclopedia

  3. Mayo Clinic
    https://www.mayoclinic.org › diseases-…

    Asthma - Symptoms and causes - Mayo Clinic

    Apr 6, 2024 · Learn about asthma, a condition that affects your airways and makes breathing difficult. Find out the signs, triggers, risk factors, complications and treatment options for asthma.

  4. Wikipedia
    https://en.wikipedia.org › wiki › Pathophysiology_of_asthma

    Pathophysiology of asthma - Wikipedia

  5. American Lung Association
    https://www.lung.org › ... › what-is-asthma

    What Is Asthma? - American Lung Association

  6. Wikipedia
    https://en.wikipedia.org › wiki › Asthma_trigger

    Asthma trigger - Wikipedia

  7. People also ask
    Where did asthma come from?
    Asthma was recognized in ancient Egypt and was treated by drinking an incense mixture known as kyphi. It was officially named as a specific respiratory problem by Hippocrates circa 450 BC, with the Greek word for "panting" forming the basis of our modern name.

    Asthma - Wikipedia

    en.wikipedia.org
    What is asthma?

    Dr. Manju Narayani

    Doctor of Medicine (MD) · 10 years of exp

    Asthma is a chronic respiratory condition which is caused by inflammation of the airway that causes narrowing of the airway. The symptoms of asthma includes cough, shortness of breath and wheeze. It can be caused due to viral respiratory condition, obesity, GERD, smoking.
    Q&A: Asthma
    bing.com
    Is asthma a long-term disease of the lungs?
    Asthma is a long-term disease of the lungs. It causes your airways to get inflamed and narrow, which makes it hard to breathe. Severe asthma can cause trouble talking or being active. You might hear your doctor call it a chronic respiratory disease. Some people refer to asthma as "bronchial asthma."

    Asthma: Causes, Symptoms, and Treatment - WebMD

    webmd.com
    When does asthma start?
    Take control of your asthma. Asthma can start at any age. Sometimes, people have asthma when they are very young and as their lungs develop, the symptoms go away, but it is possible that it will come back later in life. Sometimes people get asthma for the first time when they are older.

    What Is Asthma? - American Lung Association

    lung.org
    Is asthma a pulmonary condition?
    Asthma is a common pulmonary condition defined by chronic inflammation of respiratory tubes, tightening of respiratory smooth muscle, and episodes of bronchoconstriction. The Centers for Disease Control and Prevention estimate that 1 in 11 children and 1 in 12 adults have asthma in the United States of America.

    Pathophysiology of asthma - Wikipedia

    en.wikipedia.org
    What is the pathophysiology of asthma?
    The pathophysiology for asthma mainly involves the inflammatory pathway, associated with several types of immune cells in the body, mainly T helper 2 cells (Th2 cells), B cells and mast cells.

    Asthma trigger - Wikipedia

    en.wikipedia.org
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  8. WHO
    https://www.who.int › ... › fact-sheets › …

    Asthma - World Health Organization (WHO)

    May 6, 2024 · Asthma is a chronic lung disease that affects people of all ages and can be managed with medication and avoidance of triggers. Learn about the global burden, risk factors, diagnosis and prevention of asthma from WHO, the …

  9. NHLBI, NIH
    https://www.nhlbi.nih.gov › health › ast…

    Asthma - What Is Asthma? - NHLBI, NIH

    Apr 17, 2024 · Learn about asthma, a chronic condition that affects the airways in the lungs and can cause symptoms and attacks. Find out how to manage asthma with treatment and an action plan.

  10. Harvard Health
    https://www.health.harvard.edu › topics › a…

    Asthma - Harvard Health

    May 21, 2024 · Asthma is a chronic lung condition in which the airways become inflamed and narrowed, making it harder to breathe. Common asthma symptoms include difficulty breathing, coughing, and wheezing. Asthma tends to run in …

  11. WebMD
    https://www.webmd.com › asthma › what-i…

    Asthma: Causes, Symptoms, and Treatment - WebMD

    Jan 9, 2024 · Asthma, a persistent respiratory condition, narrows airways, causing breathlessness and difficulty breathing. Explore symptoms, causes, diagnosis, and treatment on WebMD. Skip to main content

  12. Medical News Today
    https://www.medicalnewstoday.com › artic…

    Asthma: Types, causes, and diagnosis - Medical …

    Jan 5, 2023 · Asthma is a chronic airway condition that leads to wheezing and difficulty breathing. Learn about the types and causes of asthma here.

  13. Harvard Health
    https://www.health.harvard.edu › a_to_z › asthma-a-to-z

    Asthma - Harvard Health

  14. Britannica
    https://www.britannica.com › science › asthma

    Asthma | Pathology, Symptoms & Treatment | Britannica

  15. U.S. Environmental Protection Agency
    https://www.epa.gov › asthma

    What is asthma? | US EPA - U.S. Environmental Protection Agency

  16. Cleveland Clinic
    https://my.clevelandclinic.org › health › diseases

    Asthma: Types, Causes, Symptoms, Diagnosis & Treatment

  17. Wikipedia
    https://en.wikipedia.org › wiki › Epidemiology_of_asthma

    Epidemiology of asthma - Wikipedia

  18. Healthline
    https://www.healthline.com › health › asthma

    Asthma: Symptoms, Treatment, and More - Healthline

  19. Nebraska Medicine
    https://www.nebraskamed.com › health › conditions-and...

    What is asthma, and how is it diagnosed? - Nebraska Medicine

  20. NHLBI, NIH
    https://www.nhlbi.nih.gov › health › asthma › causes

    Asthma - Causes and Triggers - NHLBI, NIH

  21. Asthma.net
    https://asthma.net › basics

    What Is Asthma? Types, Causes, and Treatment

  22. Wikipédia
    https://fr.wikipedia.org › wiki › Asthme

    Asthme — Wikipédia