At six weeks postpartum, I have a pressure-like headache on the right side of my head involving the eye—could this be a stroke or cerebral venous sinus thrombosis?

Postpartum Headache: Urgent Evaluation for Cerebral Venous Sinus Thrombosis

You need urgent neuroimaging with MRI/MRV or CT/CTV to rule out cerebral venous sinus thrombosis (CVST), as the postpartum period is a high-risk time for this life-threatening condition, and your symptoms—particularly unilateral pressure-like headache involving the eye—are consistent with venous thrombosis. 1, 2

Why This Is Urgent in Your Situation

The postpartum period significantly increases your risk for CVST, which can present with exactly the symptoms you describe—pressure-like headache that may be unilateral and involve the eye region. 1, 3

• Headache is present in nearly 90% of CVST cases and is the most common presenting symptom. 1
• Isolated headache without other neurological findings occurs in up to 25% of CVST patients, making this a diagnostic challenge that requires a high index of suspicion. 1, 2
• The headache typically progresses over days to weeks and is often described as diffuse, though it can be unilateral as in your case. 1

Specific Red Flags in Your Presentation

Your symptoms warrant immediate evaluation because:

• Postpartum status (6 weeks) is a well-established risk factor for CVST, with pregnancy/puerperium being one of the major predisposing conditions. 4, 3
• Unilateral headache with eye involvement may indicate lateral (transverse) sinus thrombosis, which commonly presents with pain in the affected region and can cause increased intracranial pressure. 1
• Pressure-like quality suggests possible increased intracranial pressure from impaired venous drainage. 1

Immediate Diagnostic Steps

MRI with MRV (magnetic resonance venography) is the gold standard for diagnosing CVST and should be performed urgently. 5

• If MRI is not immediately available, CT with CTV (CT venography) is an acceptable alternative with high sensitivity and specificity for detecting venous sinus thrombosis. 1
• Plain CT alone is insufficient, as it may miss CVST; venous imaging (MRV or CTV) is essential. 1
• Do not delay imaging—early diagnosis is critical for reducing morbidity and mortality. 5

What Happens If CVST Is Confirmed

Immediate anticoagulation with heparin or low-molecular-weight heparin is the standard treatment, even if imaging shows intracranial hemorrhage. 2, 6, 7

• The presence of hemorrhage in CVST reflects venous congestion, not arterial rupture, and anticoagulation must not be withheld. 2, 6
• In patients with hemorrhagic CVST who received heparin, 52% achieved complete neurological recovery versus only 23% in those not anticoagulated (with 69% mortality in the non-anticoagulated group). 2
• 81% of CVST patients with both hemorrhage and seizures attain complete neurological recovery when treated according to current guidelines. 2

Critical Pitfall to Avoid

The most dangerous error is dismissing your symptoms as "just a headache" or delaying imaging because you lack focal neurological deficits. 1, 2

• CVST can present with isolated headache and papilledema, mimicking idiopathic intracranial hypertension. 1
• By the time focal deficits (weakness, aphasia) or seizures develop, the thrombosis may be more extensive. 1
• Early diagnosis and treatment dramatically improve outcomes. 5

Other Considerations

While CVST is the primary concern given your postpartum status, the evaluation will also assess for:

• Arterial stroke (though less likely given your age and symptom pattern). 1
• Idiopathic intracranial hypertension (pseudotumor cerebri), which can occur in the postpartum period. 1
• Other secondary causes such as infection (though you don't mention fever or ear symptoms). 1

Go to the emergency department now for urgent neuroimaging. Time-sensitive diagnosis and treatment of CVST can be life-saving and prevent permanent neurological disability. 5, 7