18.1
Les troubles respiratoires courants
Les troubles respiratoire sont un problème de santé répandu dans le monde et sont généralement divisés en deux catégories principales : les troubles d…
Les troubles respiratoires sont généralement classés en troubles des voies respiratoires supérieures et inférieures.
Les troubles respiratoires supérieurs affectent les voies respiratoires au-dessus des cordes vocales, telles que le nez, les sinus et la gorge. En revanche, les troubles respiratoires inférieurs affectent les voies respiratoires sous les cordes vocales, y compris les poumons.
Les troubles courants des voies respiratoires supérieures, tels que le rhume et la rhinite allergique, causés par des infections ou des allergènes, entraînent une congestion nasale, des éternuements, de la toux et un écoulement nasal.
Les affections inflammatoires telles que la pharyngite, l’amygdalite et la laryngite sont causées par des infections bactériennes ou virales.
Les troubles respiratoires inférieurs comprennent des inflammations chroniques et aiguës telles que l’asthme, la bronchite chronique et la pneumonie.
Les maladies chroniques comme l’asthme peuvent entraîner des problèmes respiratoires à long terme, une oppression thoracique et une respiration sifflante.
La bronchite provoque une inflammation des bronches, tandis que la ppneumonie enflamme les alvéoles et les remplit de pus.
D’autres troubles respiratoires comprennent l’hypertension pulmonaire et la fibrose kystique et pulmonaire.
Le traitement de ces troubles comprend des médicaments, des changements de mode de vie et, parfois, une thérapie respiratoire ou une intervention chirurgicale.
View the full transcript and gain access to JoVE Core videos
Q1: What is the difference between upper and lower respiratory disorders?
Upper respiratory disorders affect airways above the vocal cords, including the nose, sinuses, and throat, causing nasal congestion and sneezing. Lower respiratory disorders impact airways below the vocal cords, primarily the lungs, and include conditions like asthma, bronchitis, and pneumonia that cause wheezing and breathing difficulties.
Q2: What causes common upper respiratory disorders like the common cold and allergic rhinitis?
The common cold and allergic rhinitis result from infections or allergen exposure. These conditions trigger nasal congestion, sneezing, coughing, and runny nose symptoms. Inflammatory upper respiratory conditions such as pharyngitis, tonsillitis, and laryngitis stem from bacterial or viral infections affecting throat tissues.
Q3: How do asthma and chronic bronchitis differ in their effects on the respiratory system?
Asthma is a chronic inflammatory disorder causing airway hyperresponsiveness and reversible airflow obstruction, manifesting as wheezing, breathlessness, and chest tightness. Chronic bronchitis causes inflammation of the bronchial tubes, leading to persistent coughing and mucus production rather than reversible airflow obstruction.
Q4: What happens to the lungs during pneumonia?
Pneumonia inflames the alveoli and fills them with pus, commonly caused by bacteria, viruses, or fungi. This inflammation leads to fever and difficulty breathing. In bacterial pneumonia specifically, pus accumulates in the alveoli, severely impairing gas exchange and oxygen delivery.
Q5: What are other significant lower respiratory disorders besides asthma and pneumonia?
Other significant lower respiratory disorders include pulmonary hypertension, cystic fibrosis, pulmonary fibrosis, and chronic obstructive pulmonary disease (COPD). These conditions can severely affect lung function and overall quality of life, requiring comprehensive management and treatment strategies to preserve respiratory health.
Q6: How are respiratory disorders treated?
Treatment varies depending on disorder nature and severity. Medications manage symptoms and prevent flare-ups, while lifestyle changes such as quitting smoking and improving indoor air quality support recovery. Respiratory therapy or surgery may be necessary for severe or complex cases to preserve lung health.
Q7: What symptoms indicate an upper respiratory infection?
Upper respiratory infections present with nasal congestion, sneezing, coughing, and runny nose. Inflammatory conditions like pharyngitis and tonsillitis cause throat soreness and difficulty swallowing. These symptoms may cause discomfort and impede daily activities, requiring appropriate diagnosis and management for recovery.