Objective To explore the pioneering symptoms of the gastrointestinal symptom cluster and their influencing factors in gastric cancer patients with chemotherapy.Methods Based on the hospital's management system for scientific research data,463 gastric cancer patients with chemothera-py were surveyed through multicenter collaboration by the corresponding module of the MD Anderson Symptom Inventory(MDASI),the Chinese Medicine Constitution Classification and Identification Standard,and the Chinese Medicine SyndromeIdentification Standard for Gastric Cancer.IBM SPSS Statistic 22.0 and IBM SPSS Modeler 18.0 were used for data analysis.Results The first occurrence of dry mouth in the gastrointestinal symptom cluster of gastric cancer patients with chemotherapy was(22.99±10.70)hours after chemotherapy.The support,confidence,and lift for the association be-tween dry mouth and decreased appetite were 62.2％,94.8％and 1.52,respectively;for dry mouth and nausea,the numerical values were 62.2％,89.6％and 1.44;for dry mouth and vomiting,the numerical values were 62.2％,79.5％and 1.28.The results of one-way ANOVA and multivariate linear regression analysis showed that alcohol consumption,syndrome of stomach heat injuring yin,and phlegm-dampness constitution were independent influencing factors for dry mouth in gastric cancer patients with chemotherapy(P＜0.05).Conclusion Dry mouth,as a pioneering symptom of the gastroin-testinal symptom cluster,is of great significance in clinical assessment and management.Improved assessment of dry mouth can provide a basis for the construction of subsequent risk prediction model,the formulation of targeted interventions,and the enhancement of symptom management efficiency.

Objective:To explore the risk factors of subsyndromal delirium (SSD) after cardiac surgery in adults and construct a risk model.Methods:The convenience sampling method was used to select 620 adult patients undergoing cardiac surgery admitted to the Surgical Intensive Care Unit (SICU) of Zhejiang Provincial People's Hospital from January 1, 2017 to December 31, 2018 as the research object. Patients with postoperative SSD were included in the SSD group, and patients without postoperative SSD were included in the non-SSD group. The preoperative, intraoperative and postoperative clinical data and various indicators of all patients were recorded in detail. Through univariate analysis and binary Logistic regression analysis, the risk factors of SSD after cardiac surgery in adults were explored, and the risk model function was constructed.Results:A total of 569 cases were included in the study. Among them, 399 cases of postoperative subdelirium did not occur (non-SSD group) , 170 cases of postoperative subdelirium occurred (SSD group) , and the incidence of SSD was 29.9%. Univariate analysis found that the influencing factors of adult SSD after cardiac surgery were age, emergency surgery, Acute Physiology and Chronic Health Evaluation (APACHE) Ⅱ score, aortic occlusion time, deep hypothermia circulatory arrest time, intraoperative plasma transfusion, SICU stay time and the use of dexmedetomidine, and the differences between the two groups were statistically significant ( P<0.05) . The binary Logistic regression analysis found that age>76 years [odds ratio ( OR) =4.332, 95% confidence interval ( CI) : (2.103, 8.965) , P<0.001], emergency surgery [ OR=3.453, 95%CI: (1.143, 7.534) , P<0.05], APACHEⅡ score> 15 [ OR=5.453, 95% CI: (1.453, 9.536) , P<0.001], deep hypothermia circulatory arrest time > 34.2 min [ OR=2.132, 95% CI: (1.053, 5.532) , P<0.05] and SICU stay time > 50.0 h [ OR=1.675, 95% CI: (0.832, 5.233) , P<0.05] were independent risks of SSD after cardiac surgery in adults, and the use of dexmedetomidine [ OR=1.536, 95% CI: (0.763, 4.862) , P<0.05] was a protective factor. Conclusions:Age > 76 years, emergency surgery, APACHE Ⅱ score > 15, deep hypothermia circulatory arrest time > 34.2 min, and SICU stay time >50.0 h are independent risk factors for SSD after cardiac surgery in adults, and the use of dexmedetomidine can reduce the occurrence of SSD.