Correlation analysis between bispectral index and prognosis of patients with spontaneous intracerebral hemorrhage

Abstract

Objective To evaluate the correlation between bispectral index (BIS) and the prognosis of patients with spontaneous intracerebral hemorrhage (sICH). Methods Sixty ⁃ four patients with sICH admitted to intensive care unit after surgery in Tianjin Huanhu Hospital from March 2019 to May 2022 were enrolled. Glasgow Coma Scale (GCS), quick Sequential Organ Failure Assessment (qSOFA), Acute Physiology and Chronic Health Evaluation Ⅱ (APACHEⅡ) and intracranial pressure (ICP) monitoring were used to evaluate the severity of disease. The incidence of postoperative artificial airway establishment, invasive mechanical ventilation, intracranial infection and pulmonary infection were recorded. At the same time, continuous BIS monitoring was performed. The Glasgow Outcome Scale (GOS) and modified Rankin Scale (mRS) were used to evaluate the prognosis, and the length of hospital stay was recorded. Results According to the first BIS value, the patients were divided into a high BIS group (BIS value ≥ 60, n = 30) and low BIS group (BIS value < 60, n = 34). In the high BIS group, GCS score (t = 9.597, P = 0.000), the proportion of artificial airway establishment (χ2 = 12.818, P = 0.000) and invasive mechanical ventilation (χ2 =4.099, P = 0.043), and GOS score (t = 13.964, P = 0.000) were higher than those in the low BIS group, while qSOFA score (t = ⁃ 2.033, P = 0.000), APACHEⅡ score (t = ⁃ 7.426, P = 0.000), ICP value (t = ⁃ 6.643, P = 0.000) and mRS score (t = 4.099, P = 0.000) were lower than those in the low BIS group. Correlation analysis showed that BIS value was positively correlated with GCS score (r = 0.704, P = 0.000) and GOS score (r = 0.633, P = 0.000), and was negatively correlated with ICP value (r = ⁃ 0.668, P = 0.000), qSOFA score (r = ⁃ 0.282, P = 0.025), APACHEⅡ score (r = ⁃ 0.646, P = 0.000) and mRS score (r = ⁃ 0.508, P = 0.000) for patients with sICH after surgery. Conclusions BIS monitoring has good application value in evaluating the prognosis of patients with sICH after surgery.

DOI: 10.3969/j.issn.1672⁃6731.2023.06.008