NIHSS Score Prognostic Effect of Mechanical Thrombectomy in Patients with Acute Mild Ischemic Stroke Complicated with Large Vessel Occlusion

Objective: To investigate the effectiveness of mechanical thrombectomy for acute mild ischemic stroke (LVO-MIS) complicated with large vessel occlusion. Methods: A total of 80 cases of LVO-MIS admitted to three hospitals from February 1, 2023, to January 1, 2024, were divided into 2 groups according to the random number table method. 40 cases of bridge treatment were the control group, and 40 cases of mechanical thrombectomy were the observation group. The prognostic effect of the two groups was compared. Results: The improvement of NIHSS score at 14 days after operation was compared between groups, and the observation group was slightly lower than the control group after treatment, with no significant difference (P > 0.05). The rate of good prognosis among groups was better than that of the control group (P < 0.05), and the rate of vascular revascularization and the incidence of symptomatic cerebral hemorrhage among groups were slightly better than that of the control group, but there was no significant difference (P < 0.05). The incidence of hemorrhage conversion in the observation group was lower than that in the control group, and the difference between groups was significant (P < 0.05). Conclusion: The safety and effectiveness of mechanical thrombectomy in patients with LVO-MIS have been confirmed, and the effect of mechanical thrombectomy is comparable to that of clinical bridging therapy. In addition, mechanical thrombectomy can also reduce the incidence of hemorrhage transformation in patients with LVO-MIS, improve safety and efficacy, and can be applied clinically.