Sigmoid-Sinus Thrombophlebitis

Sigmoid-sinus thrombophlebitis is septic thrombosis of the sigmoid dural sinus, a complication of otitis media/mastoiditis. Clinical: fever, headache, ear pain/discharge, and sometimes signs of raised intracranial pressure or cranial-nerve palsies. Diagnosis: CT/MRI venography. Treatment: IV antibiotics and urgent ENT source control (mastoidectomy); anticoagulation is controversial and considered on case basis.

Common Symptoms

Fever; headache; ear pain/discharge; raised ICP signs; history of otitis/mastoiditis

Causes and Pathogenesis

Infection from otitis/mastoiditis spreads to the sigmoid sinus wall, causing septic thrombosis and thrombophlebitis.

Treatment

IV antibiotics; urgent ENT source control (mastoidectomy); anticoagulation considered case by case; manage ICP

Preventive Measures

Treat otitis media promptly; ENT follow-up for chronic ear disease.

Department to Visit

It is recommended to visit the ENT department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.