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Shortness of breath, a subjective difficulty or distress in breathing, usually associated with disease of the heart or lungs; occurs normally during intense physical exertion or at high altitude.
Synonym(s): dyspnoea.
[G. dyspnoia, fr. dys-, bad, + pnoē, breathing]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


Difficult, laboured or obstructed breathing. The sense of ‘not getting enough air’. This is a feature of ASTHMA, partial obstruction or narrowing of the airway, lung disease, severe ANAEMIA, MOUNTAIN SICKNESS or hysterical HYPERVENTILATION. Refractory dyspnoea that has failed to respond to standard treatments has been treated effectively with sustained release morphine-a controversial measure in view of the well-known respiratory depressive effect of this drug.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005


(disp-nē'ă) In the diphthong pn, the p is silent only at the beginning of a word.
Shortness of breath, a subjective difficulty or distress in breathing, usually associated with disease of the heart or lungs; occurs normally during intense physical exertion or at high altitude.
Synonym(s): dyspnoea.
[G. dyspnoia, fr. dys-, bad, + pnoē, breathing]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about dyspnoea

Q. can one prevent asthma attack from happening from the moment he/she feels breathless???

A. If the patient feels breathless, than it's no longer preventing the attack but rather treating it. Prompt treatment of asthma attacks is very important and achieved mainly with bronchodilators (medications taken through inhalation), mainly short-acting beta agonists. More advanced treatments is usually given by medical professional as deemed needed.

Preventing asthma attacks is achieved through better control of the disease (with drugs such as inhaled steroids) and through avoidance of triggers such as infections of the lung (vaccinations etc.), avoidance of chemical irritants, pet allergens, cold, dry air etc.

You may read more here(www.nlm.nih.gov/medlineplus/asthma.html )
and if you have any questions, you may want to consult your doctor.

Q. Is there a known connection between asthma and cat allergy? I've been with asthma for many years now but usually get several attacks every year and they are caused from being around pine trees or when I'm with a cold- it also affects my breathing. Lately I get serious attacks after being in a house with a cat. I've never knew a cat allergy- I used to pat many and never got breathing difficulties as a result of a touch with them and lately it happends every time. Are cat a known asthma cause? can I do anything to prevent that?Can I maybe overcome it by being next to cats more often and getting myself used to it?

A. you may be becoming more sensitive to cats an other things--there are drugs on the market that you take everyday to control asthma/allergies--that can prevent you from even having an attack--i am a retired respriratory therpist/emt so i dont no about natural/chinese medicines---i will tell you this asthma can kill --donot try to treat yourself--i dont no what kind of dr you have but--go to a pulmonary DR. with asthma you have to take your meds everyday because skipping can cause you to be come more sensitive to allergens an can cause you to go into a bad attack---mrfoot56--feel better.

More discussions about dyspnoea
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References in periodicals archive ?
Senior author of the research, Dr Andreia Biolo, who presented the results said, "The results show that patients with stable heart failure who stop diuretics do not have more dyspnoea than those who continue taking the drug.
Symptoms and Signs of Study Subjects Symptom/Sign Frequency Percent Dyspnoea 57 100.0% Oedema 50 87.7% Raise in Jugular venous Pressure 46 80.7% Wheeze 42 75.4% Crepitations 35 61.4% Cyanosis 28 50.0% Ascites 14 23.7% Clubbing 5 8.8% Pallor 3 5.3% Syncope 2 3.5% As shown in table 1, in the present study the most common symptom was dyspnoea which was seen in 100% of the study subjects, followed by oedema (87.7%) and Jugular venous pressure rise seen in 80.7%.
The study established two groups of 27 patients: one group treating the patients over 11 days and the other group treating the patients over 4 days and found that at baseline, dyspnoea was higher in the 11 day group compared with the 4 day group (44.4 versus 25.9, p=0.02), along with worsening in role functioning, fatigue and cough in the 11 day group [45].
The modified version of pulmonary functional status and dyspnoea questionnaire (PFSDQ-M) was based on the four relevant questions, and the London Chest Activity of Daily Living (LCADL) scale includes activities of daily living such as walking, climbing stairs, and performing activities using upper extremities [12, 13].
Main differential diagnoses include a foreign body - the lack of history of invasive procedures (Gastroenteral tubes and ventriculoperitoneal shunt) discarded this hypothesis and an ascaris lumbricoides, which causes vomiting, recurrent dyspnoea, dry cough (Loffler's syndrome).
Symptoms associated with pulmonary artery dissection include chest pain, fatigue, and progressive dyspnoea. Dissection of PA often manifests as cardiogenic shock or sudden death [13].
Overweight male smoker allergic to metamizol with known dyslipidaemia was examined due to dyspnoea with acute respiratory insufficiency multiple times over several years.
A single session of Acu-TENS has been shown to alleviate dyspnoea at rest in people with COPD in a stable condition [1-3] and during an exacerbation [4].
On subjective examination, the patient was attentive, in serious general state, pale, sweaty, in logical verbal contact, taking a seated position due to respiratory dyspnoea. The patient presented a normal body build of a normosthenic type.
The Egyptian Coordination for Rights and Freedoms said that the prisoner had suffered from dyspnoea [difficulty breathing] and died due to "a lack of air", accusing the authorities of not providing medical care.
Common mode of presentations were generalized oedema 87 (28.52%), dyspnoea 72(23.60%), weakness 46(15.08%).