Acute Management of Right Third‑Nerve Palsy in Hemorrhagic Infarction

Diagnostic Imaging and Initial Assessment

Obtain an immediate non‑contrast CT or MRI to confirm the presence, location, and extent of intracerebral hemorrhage in patients presenting with third‑nerve palsy. 1
Perform CT angiography, MR angiography, or catheter angiography to rule out structural lesions such as aneurysms or arteriovenous malformations that could underlie the palsy. 1
Assess coagulation status (platelet count, PT/INR, aPTT) and obtain a detailed medication history focusing on anticoagulant and antiplatelet use. 1
Conduct a baseline neurological severity assessment: use the NIH Stroke Scale for awake or drowsy patients and the Glasgow Coma Scale for obtunded patients. 1
Evaluate for clinical signs of increased intracranial pressure given the midbrain involvement of the oculomotor nucleus. 1

Measure blood pressure on emergency‑department arrival and repeat every 15 minutes until a stable target is achieved. 1
Initiate aggressive blood‑pressure lowering with a target systolic pressure < 140 mm Hg; this may require repeated bolus dosing or continuous intravenous infusion. 1
Continue close blood‑pressure monitoring every 30–60 minutes (more frequently if above target) for the first 24–48 hours. 1
Preferred antihypertensive agents: labetalol 10–20 mg IV over 1–2 minutes (repeat every 10–20 minutes, max 300 mg) or nicardipine infusion starting at 5 mg/h, titrated by 2.5 mg/h every 5 minutes up to a maximum of 15 mg/h. 3

Discontinue all antiplatelet agents (e.g., aspirin, clopidogrel, dipyridamole) immediately. 3
For patients on warfarin, reverse anticoagulation with prothrombin‑complex concentrate (PCC) plus vitamin K; fresh‑frozen plasma plus vitamin K may be used if PCC is unavailable. 3
For patients on direct oral anticoagulants, obtain urgent hematology consultation to determine the appropriate reversal agent and its availability. 3

Urgent neurosurgical evaluation is indicated for cerebellar hemorrhage accompanied by altered consciousness or new brain‑stem signs that could explain the third‑nerve involvement. 3
Immediate consultation is required for acute hydrocephalus that may need external ventricular drain placement. 3
Consider early surgical intervention for selected supratentorial intracerebral hemorrhage patients with a Glasgow Coma Scale score of 9–12. 3

Admit medically stable patients to a dedicated stroke unit or neurocritical‑care unit for continuous monitoring. 3
Perform validated neurological scale assessments (e.g., CNS score) at baseline and repeat at least hourly during the first 24 hours. 1
Activate an interprofessional stroke team to evaluate rehabilitation needs and coordinate ongoing care. 3

Recombinant Factor VIIa should not be used outside of clinical‑trial settings; although it may limit hematoma growth, it increases arterial thromboembolic risk without demonstrable clinical benefit. 3
Prophylactic anticonvulsants are not recommended, as no established benefit has been shown in this context. 3

Initiate a goals‑of‑care discussion with the patient or their substitute decision‑maker early in the hospitalization. 3
Defer decisions regarding Do‑Not‑Resuscitate orders or transition to palliative care for 24–48 hours after symptom onset, unless the patient has pre‑existing wishes to avoid invasive therapies. 3

Hematoma expansion occurs in approximately 30–40 % of intracerebral hemorrhage patients and is linked to poorer functional outcomes; vigilant monitoring for neurological deterioration is essential. 1