Deviated septum is associated with genetic connective tissue disorders such as Marfan syndrome, Homocystinuria and Ehlers–Danlos syndrome. Diagnosis
Nasal septum deviation is the most common cause of nasal obstruction. A history of trauma to the nose is often present including trauma from the process of birth or microfractures. A medical professional, such as an otorhinolaryngologist (ears, nose, and throat doctor), typically makes the diagnosis after taking a thorough history from the affected person and performing a physical examination. Imaging of the nose is sometimes used to aid in making the diagnosis as well. Treatment
Medical therapy with nasal sprays including decongestants, antihistamines, or nasal corticosteroid sprays is typically tried first before considering a surgical approach to correct nasal septum deviation. Medication temporarily relieves symptoms, but does not correct the underlying condition. Non-medical relief can also be obtained using nasal strips. A minor surgical procedure known as septoplasty can cure symptoms related to septal deviations. The surgery lasts roughly one hour and does not result in any cosmetic alteration or external scars. Nasal congestion, pain, drainage, or swelling may occur within the first few days after the surgery. Recovery from the procedure may take anywhere from 2 days to 4 weeks to heal completely. Septal bones never regrow. If symptoms reappear they are not related to deviations. Reappearance of symptoms may be due to mucosal metaplasia of the nose.Currently, the most gentle and effective treatment is laser septo-chondroplasty for the septal cartilage segment deformity and ultrasound septoplasty — effective for the septal cartilage and bone deformation.
A hereditary bleeding disorder of dogs caused by a lack of platelet procoagulant activity. Blood 2002; 99:2434–2441


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