ICH, SAH, Edema, ICP, Seizure, and Safety Priorities

Intracerebral hemorrhage priorities

Intracerebral hemorrhage (ICH) and aneurysmal subarachnoid hemorrhage (SAH) are nursing emergencies because deterioration can occur from hematoma expansion, rebleeding, hydrocephalus, edema, seizure, or medical complications. The first priority is airway, breathing, circulation, and disability assessment, followed by fast communication with the stroke, neurosurgery, and neurocritical-care teams.

For ICH, nursing surveillance focuses on level of consciousness, pupils, motor change, headache, vomiting, blood pressure trend, anticoagulant or antiplatelet exposure, coagulation labs, and repeat-imaging readiness. The 2022 AHA/ASA ICH guideline supports acute systolic BP lowering to a target of about 140 mm Hg (maintained in the 130-150 range) for patients with mild-to-moderate ICH presenting with SBP 150-220 mm Hg; lowering SBP below 130 is potentially harmful, and abrupt drops greater than 70 mm Hg in the first hour may harm.

Anticoagulant-associated ICH requires rapid reversal by drug class: warfarin with vitamin K plus 4-factor prothrombin complex concentrate (PCC); dabigatran with idarucizumab; and factor Xa inhibitors (apixaban, rivaroxaban) with andexanet alfa or PCC per protocol. The nurse should not delay escalation while independently selecting the agent. Recall the cross-cutting BP target: ICH SBP about 140 (range 130-150), distinct from the >220/120 ischemic-no-tPA threshold and the <180/105 post-reperfusion ceiling.

SAH-specific concerns and grading

Aneurysmal SAH often begins with a sudden "thunderclap" severe headache, meningeal signs, vomiting, photophobia, decreased consciousness, or collapse. Before the aneurysm is secured by surgical clipping or endovascular coiling, prevent rebleeding by controlling pain, nausea, agitation, and severe blood-pressure elevations while avoiding hypotension. Once ordered, enteral nimodipine 60 mg every 4 hours for 21 days is given to reduce delayed cerebral ischemia and improve outcomes; monitor for hypotension after doses and report held or split doses.

Two grading scales are tested. Hunt-Hess is clinical and predicts prognosis; modified Fisher scores CT blood burden and predicts vasospasm.

Modified Fisher: 0 = no SAH/IVH; 1 = thin SAH, no IVH; 2 = thin SAH with IVH; 3 = thick SAH, no IVH; 4 = thick SAH with IVH. Higher scores (especially 3-4) carry the greatest vasospasm risk.

Edema, ICP, and herniation

Large MCA infarcts may swell over 24-72 hours (malignant MCA syndrome). Cerebellar and posterior-fossa infarcts and hemorrhages are especially dangerous because swelling can compress the brainstem or obstruct cerebrospinal-fluid flow, causing hydrocephalus. Red flags for rising intracranial pressure (ICP) and herniation include worsening headache, repeated emesis, decreasing consciousness, new cranial-nerve findings, pupillary asymmetry or a fixed dilated pupil, abnormal posturing, and the late Cushing's triad of hypertension, bradycardia, and irregular respirations.

ICP management checklist: keep the head midline with the head of bed (HOB) elevated to about 30 degrees to promote venous drainage; avoid hypoxia, hypercarbia, and hypotension; treat fever toward normothermia; ensure analgesia and avoid noxious stimulation; and give osmotic therapy when ordered, either mannitol or hypertonic saline (AHA/ASA supports either for initial cerebral-edema management).

Prepare for EVD placement, and for malignant MCA infarction, decompressive hemicraniectomy within 48 hours of onset reduces mortality and is considered for selected patients (strongest in those 60 and younger; reasonable in older patients to improve survival, often with greater residual disability). After craniectomy, protect the unshielded brain: avoid pressure on the bone defect, use ordered helmet protection for mobility, and state positioning restrictions in every handoff.

Securing the aneurysm and preventing complications

The definitive treatment of a ruptured cerebral aneurysm is early securement to stop rebleeding, by microsurgical clipping (a craniotomy with a clip across the aneurysm neck) or endovascular coiling (platinum coils packed into the sac via catheter), with the choice driven by aneurysm location, morphology, and patient factors.

Rebleeding risk is highest in the first 24 hours, so the pre-securement window is a high-alert period: keep the patient calm, control pain and severe hypertension, prevent straining (stool softeners, antiemetics), and maintain a quiet environment. After securement, the focus shifts to vasospasm and delayed cerebral ischemia surveillance through about day 14, supported by nimodipine, euvolemia, and serial neuro exams; transcranial Doppler or CT angiography/perfusion may be used to detect narrowing.

Symptomatic vasospasm may be treated with induced hypertension (once the aneurysm is secured) or endovascular therapy per protocol.

Hydrocephalus is the other recurring SAH threat. Blood in the cisterns and ventricles can block cerebrospinal-fluid flow, so an EVD may be placed both to drain CSF and to monitor ICP. A patient who becomes more somnolent with upgaze difficulty or enlarging ventricles needs urgent neurosurgical evaluation, not reassurance.

Seizure and device safety

During a seizure, protect from injury, position the airway, time the event, give the ordered rescue medication, and check glucose and oxygenation; afterward, reassess the neurologic baseline. Unexplained decreased responsiveness may warrant continuous electroencephalography, especially when sedation, aphasia, or severe injury makes the exam unreliable. External ventricular drains require precise leveling to the ordered reference point, sterile handling, drainage and waveform documentation, and clamping during transport or repositioning.

A sudden drainage change, a damp dressing with clear fluid, a waveform change, or neurologic decline is never routine: secure the system, assess the patient, and notify the provider promptly.