What are systemic and local causes of epistaxis?

Epistaxis

Epistaxis, or nosebleed, can be caused by various systemic and local factors. Understanding these causes is crucial for effective management hence explained below.

1. Systemic Causes:

   • Hypertension: Elevated blood pressure can lead to rupture of fragile blood vessels in the nasal mucosa.
   • Blood disorders: Conditions such as hemophilia, von Willebrand disease, or thrombocytopenia can impair clotting function, increasing the risk of bleeding.
   • Liver disease: Liver dysfunction can result in impaired synthesis of clotting factors, predisposing to bleeding disorders.
   • Medications: Anticoagulant medications (e.g., aspirin, warfarin) or antiplatelet agents (e.g., clopidogrel) can prolong bleeding time.
   • Systemic illnesses: Conditions like leukemia, renal failure, or hereditary hemorrhagic telangiectasia (HHT) may increase susceptibility to epistaxis.

2. Local Causes:

• Trauma: Injury to the nasal mucosa from nose picking, foreign bodies, or blunt trauma can cause bleeding.
• Dry air: Low humidity can dry out the nasal mucosa, making it more prone to irritation and bleeding.
• Nasal infections: Inflammatory conditions such as sinusitis or rhinitis can lead to mucosal inflammation and subsequent epistaxis.
• Nasal septal deviation: Structural abnormalities in the nasal septum can cause friction and erosion of the nasal mucosa, resulting in bleeding.

Management of anterior epistaxis

Management of anterior epistaxis in a primary healthcare center typically involves the following steps:

1. Initial Assessment:

   • Assess the severity of bleeding and the patient’s hemodynamic status.
   • Obtain a brief medical history, including any predisposing factors or medications that may contribute to bleeding.

2. Patient Positioning:

   • Instruct the patient to sit upright and lean forward to prevent blood from flowing into the throat and causing aspiration.

3. Direct Pressure:

   • Apply firm, direct pressure to the soft lower part of the nose (the nasal ala) for at least 10-15 minutes using thumb and index finger.
   • Encourage the patient to breathe through their mouth during this time.

4. Topical Vasoconstrictors:

   • If bleeding persists after initial pressure, apply a topical vasoconstrictor such as oxymetazoline or phenylephrine to the bleeding site. This helps to constrict blood vessels and control bleeding.

5. Nasal Packing:

   • If bleeding continues despite conservative measures, nasal packing may be necessary. This can be achieved using absorbable materials like nasal tampons or nasal packing strips impregnated with vasoconstrictors.
   • Instruct the patient to return for follow-up evaluation and removal of nasal packing within 48-72 hours.

6. Education and Follow-up:

   • Educate the patient on preventive measures to reduce the risk of recurrent epistaxis, such as avoiding nose picking, maintaining adequate humidity indoors, and using saline nasal sprays to keep the nasal mucosa moist.
   • Schedule a follow-up visit to monitor for recurrence and assess the effectiveness of management strategies.