Early Blood Pressure Intervention After Coiling or Clipping for Subarachnoid Hemorrhage

Exclusion Criteria

• •1\) Presence of untreated intracranial aneurysms with rupture risk;
• •2\) Moderate-to-severe cerebral vasospasm confirmed by pre-enrollment digital subtraction angiography (DSA), transcranial Doppler (TCD), or computed tomography angiography (CTA);
• •3\) Intracranial massive hematoma (e.g., volume \>30 mL with midline shift \>5 mm) causing severe cerebral herniation, as evidenced by admission CT or other imaging modalities;
• •4\) Prior cranial neurosurgery for other central nervous system disorders;
• •5\) Comorbid major systemic diseases or multi-organ dysfunction with life expectancy \<1 year, potentially compromising study implementation or follow-up observations;
• •6\) Poorly controlled hypertension despite regular antihypertensive medication (e.g., systolic blood pressure \>160 mmHg during pharmacotherapy);
• •7\) Pre-onset modified Rankin Scale (mRS) score \>2 points, indicating disability from other causes;
• •8\) Intraoperative major complications including but not limited to massive cerebral hemorrhage, hypovolemic shock, or malignant brain swelling;
• •9\) Anticipated inability to complete scheduled follow-up assessments within 180 days;
• •10\) Pregnancy.