Objective:To explore the application of individualized and staged psychological intervention in liver cancer patients during perioperative period, to provide reference for perioperative nursing of patients with liver cancer.Methods:A total of 80 liver cancer patients who were hospitalized in Hefei Binhu Hospital and Hefei First People's Hospital from January to December 2019 were divided into observation group and control group by random number table method, with 40 cases in each group. The control group was given routine perioperative care, and the observation group was treated with routine perioperative care and individualized phased psychological intervention. All were intervented for 7 days. The mental state, self-efficacy, quality of life, and psychosocial adaptation levels before and after the intervention were evaluated by Hamilton Anxiety Scale (HAMA), Hamilton Depression Scale (HAMD), and General Self-Efficacy Scale (GSES), the Quality of Life Scale, etc.Results:There was no significant difference in HAMA, HAMD, GSES, quality of life, and psychosocial adaptation level between the two groups before intervention ( P>0.05). The HAMA and HAMD scores in the observation group after intervention were (16.01 ± 2.25) and (15.75 ± 2.06) points, which were lower than those in the control group (18.46 ± 2.49) and (17.29 ± 2.33) points, and the differences were statistically significant ( t values were 4.617, 3.312, P<0.05). The overall function scores of GSES and quality of life in the observation group after intervention were (28.49 ± 3.82) and (46.41 ± 4.63) points, which were higher than those in the control group (25.35 ± 3.64) and (43.74 ± 4.95) points, the differences were statistically significant ( t values were 3.764, 2.491, P<0.05); all aspects of psychosocial adaptation scores in the observation group after intervention were higher than those in the control group, the differences were statistically significant ( t values were 2.278 - 4.578, P<0.05). Conclusions:The application of individualized and staged psychological intervention in liver cancer patients during perioperative period can significantly alleviate negative emotion, enhance their self-efficacy, improve level of social-psychological adjustment and quality of life.

Objective: To compare the efficiency of four methods that remove calcium hydroxide in root canals and to guide clinical practice. Methods : Sixty-five isolated mandibular single root canal premolars were collected. After crown cutting and root canal preparation, a tooth was randomly selected as the blank control group, and the remaining 64 teeth were equally divided into Groups A and B (n = 32). Group A was injected with water-soluble calcium hydroxide, and Group B was injected with oil-soluble calcium hydroxide. After 2 weeks of drug sealing, Groups A and B were randomly divided into 4 groups (n = 8), including the lateral opening syringe group, sonic vibration group, ultrasonic group, and Er: YAG laser group. Before and after calcium hydroxide removal, the samples were scanned by cone-beam CT, and the data were imported into Mimics for 3D reconstruction. The root canal was divided into the following segments: superior root segment, middle and apical, and the calcium hydroxide volume of each segment of the root canal was calculated. The volumes of calcium hydroxide before and after removal were V1 and V2, respectively, with a clearance rate = (V1-V2)/V1×100%. Three-factor ANOVA was used for statistical analysis. After Groups A and B were reconstructed, the apical region with residual calcium hydroxide was selected, and the blank control was observed by scanning electron microscopy (SEM). Results : Two types of calcium hydroxide could not be completely removed by the four flushing methods. The clearance rate of water-soluble calcium hydroxide was higher than that of oil-soluble calcium hydroxide (P<0.001). Among the three segments of the root canal, the clearance rate of the apical segment was lower (P<0.05). The Er: YAG laser treatment group showed the highest removal efficiency of two kinds of calcium hydroxide, which was higher than that of the other groups, especially in apical of the root. Compared with the sonic wave washing group and the syringe washing group, the ultrasonic wave washing group exhibited significant advantages (P<0.05). The clearance rate of the sonic wave washing group was higher in the oily calcium hydroxide root middle group than in the syringe washing group (P<0.05). SEM showed that the two kinds of calcium hydroxide could not be completely removed, but the residual rate of oil-soluble calcium hydroxide was large. Conclusion Both types of calcium hydroxide could not be completely removed, and compared to water-soluble calcium hydroxide, oil-soluble calcium hydroxide was more difficult to remove. Among the four cleaning methods, Er:YAG laser swing washing showed the higher cleaning efficiency.