Objective To compare the clinical effects of visual technological intubation with positioning laryngeal mask and tracheal intubation for the patients under general anesthesia. Method This test contains 80 aged patients under general anesthesia, with ASA I~III, randomly divided into two groups, 40 patients in A group named tracheal intubation group, and the other 40 patients in B group named laryngeal mask group. Relatively record the MAP and HR changes when 5 minutes after enter in operating room and keep quiet (T0), before immediate insert into (laryngeal mask) with tracheal catheter (T1), immediate insert (T2), 3 minutes after insert (T3), removing time (T4), immediate time after remove (T5), 3 minutes after remove (T6), and the occurrence rate of postoperative complications like pharyngalgia etc. Then observe and record the complications like bucking during emergence period, nausea, vomiting, pharyngalgia and hoarseness etc in the early postoperative period and make comparison. Result The patients in A Group and B Group all accept safe operations, there is no obvious changes about MAP and HR before and after the insert and remove laryngeal mask in B Group (P > 0.05); and there is obvious changes about MAP and HR before and after remove tracheal catheter in A Group (P < 0.05), and obviously increased than B Group (P < 0.05). In B Group, the occurrence rate of bucking, nausea, vomiting, and pharyngalgia after operation is obvious less than that in A Group (P < 0.05). Conclusion The application of ultrasonic combined with bronchofiberscope positioning laryngeal mask in airway management of aged patients under general anesthesia is safety and workable. And comparing with tracheal intubation, it has simple operation, smooth and steady hemodynamics and less complications, which is fit for the application of aged patients' airway management under general anesthesia.

Objective To investigate the incidence rate,clinical characteristics,and prognosis of neonatal stroke in Shenzhen,China.Methods Led by Shenzhen Children's Hospital,the Shenzhen Neonatal Data Collaboration Network organized 21 institutions to collect 36 cases of neonatal stroke from January 2020 to December 2022.The incidence,clinical characteristics,treatment,and prognosis of neonatal stroke in Shenzhen were analyzed.Results The incidence rate of neonatal stroke in 21 hospitals from 2020 to 2022 was 1/15 137,1/6 060,and 1/7 704,respectively.Ischemic stroke accounted for 75％(27/36);boys accounted for 64％(23/36).Among the 36 neonates,31(86％)had disease onset within 3 days after birth,and 19(53％)had convulsion as the initial presentation.Cerebral MRI showed that 22 neonates(61％)had left cerebral infarction and 13(36％)had basal ganglia infarction.Magnetic resonance angiography was performed for 12 neonates,among whom 9(75％)had involvement of the middle cerebral artery.Electroencephalography was performed for 29 neonates,with sharp waves in 21 neonates(72％)and seizures in 10 neonates(34％).Symptomatic/supportive treatment varied across different hospitals.Neonatal Behavioral Neurological Assessment was performed for 12 neonates(33％,12/36),with a mean score of(32±4)points.The prognosis of 27 neonates was followed up to around 12 months of age,with 44％(12/27)of the neonates having a good prognosis.Conclusions Ischemic stroke is the main type of neonatal stroke,often with convulsions as the initial presentation,involvement of the middle cerebral artery,sharp waves on electroencephalography,and a relatively low neurodevelopment score.Symptomatic/supportive treatment is the main treatment method,and some neonates tend to have a poor prognosis.