Early Blood Pressure Intervention After Coiling or Clipping for Subarachnoid Hemorrhage

Blood pressure monitoring was initiated immediately upon the patient's return to the intensive care unit (ICU) postoperatively, followed by randomization. Blood pressure management was guided by systolic blood pressure (SBP) measurements, with physicians encouraged to adjust therapy based on institutional protocols and clinical judgment. For SBP \<120 mmHg, intravenous crystalloid or colloid fluid resuscitation was prioritized. If the target blood pressure was not achieved, norepinephrine infusion was initiated at a minimum dose of 0.1 µg/kg/min and titrated up to a maximum of 0.5 µg/kg/min to maintain SBP between 120-160 mmHg (\<160 mmHg and \>120 mmHg). For SBP \>160 mmHg, intravenous or oral antihypertensive drugs were administered to reduce and maintain SBP within the 120-160 mmHg range. For SBP within the range of 120-160 mmHg, standard supportive care was provided.

Blood pressure monitoring was initiated immediately upon the patient's return to the intensive care unit (ICU) postoperatively, followed by randomization. Blood pressure management was guided by systolic blood pressure (SBP) measurements, with physicians encouraged to adjust therapy based on institutional protocols and clinical judgment. For SBP \<160 mmHg, intravenous crystalloid or colloid fluid resuscitation was prioritized. If the target blood pressure was not achieved, norepinephrine infusion was initiated at a minimum dose of 0.1 µg/kg/min and titrated up to a maximum of 0.5 µg/kg/min to maintain SBP between 160-180 mmHg ( ≥160 mmHg and ≤120 mmHg). For SBP \>180 mmHg, intravenous or oral antihypertensive drugs were administered to reduce and maintain SBP within the 120-160 mmHg range. For SBP within the range of 160-180 mmHg, standard supportive care was provided.