Abstract:Objective To investigate the significance of r-like endoplasmic reticulum kinase (PERK) in cerebrospinal fluid (CSF) of patients with cerebral hemorrhage.Methods From March 2019 to May 2021, 121 patients with intracerebral hemorrhage admitted to our hospital were selected as the study subjects, and they were followed up for 6 months after admission. Basic data of patients were collected. PERK levels of patients with intracerebral hemorrhage of different severity were analyzed. Factors influencing the prognosis of patients with intracerebral hemorrhage were analyzed. The prognostic value of PERK levels in cerebrospinal fluid was analyzed.Results The PERK level of the severe patients was higher than the mild and moderate patients (P < 0.05), and the PERK level of the moderate patients was higher than the mild patients (P < 0.05). 30 had poor prognosis during follow-up, and 91 had good prognosis of the 121 patients. Logistic multivariate regression analysis showed that national Institutes of Health Stroke Scale (NIHSS) score [O^R = 7.294 (95% CI: 3.00, 17.73) ], Glasgow Coma Score (GCS) [O^R = 5.217 (95% CI: 2.15, 12.68)], intracranial pressure [O^R = 4.943 (95% CI: 2.03, 12.01) ], and PERK [O^R = 4.536 (95% CI: 1.87, 11.02) ] levels were prognostic risk factors in patients with CEREBRAL hemorrhage (P < 0.05). ROC curve analysis showed that PERK in CSF had a sensitivity of 76.67% (95% CI: 0.573, 0.894), a specificity of 80.22% (95% CI: 0.703,0.876), and an AUC of 0.772 (95% CI: 0.660, 0.884).Conclusion The level of PERK in cerebrospinal fluid of patients with intra cerebral hemorrhage is not only related to the patient's condition, but also the patient's prognosis. PERK is a good predictor of the prognosis of patients with intracerebral hemorrhage.