Objective: We clarified the results of the incidence of an adverse event (AE) in the ICU at a university hospital. Methods: Using a random sampling method, 88 patients were selected, and we retrospectively reviewed their medical records using the Global Trigger Tool. Results: During the study period, 119 AEs occurred. A total of 57.3% of the patients experienced AEs, and the incidence of occurrence was 300.5 AEs for every 1,000 patient days and approximately 135.2 AEs per 100 ICU admissions. The amount of preventable AEs was determined to be 39.2%. The most frequent AE was in the cardiovascular department. The most frequent cause of AE was medications. For the level of harm, 3a (temporary harm to the patient and required intervention) was 63.9%; 3b (temporary harm to the patient and required initial or prolonged hospitalization) was 33.6%; 4a (permanent patient harm) was 0.0%; 4b (intervention required to sustain life) was 0.8%; 5 (patient death) was 1.7%. Conclusion: The incidence of AEs in the ICU was 57.3%. About 60% of the AEs were mild, and about 40% of the AEs were preventable.

Objective: This study aimed to investigate the incidence of ICU-acquired weakness（ICU-AW）and the associated risk factors in pediatric patients after congenital heart surgery. Method: A total of 255 children who had undergone congenital heart surgery were assigned to two groups (with and without ICU-AW) and we compared patient characteristics between the two groups. Additionally, we intended to identify the associated risk factors for ICU-AW based on a multivariate analysis. Results: Of the 255 patients, 65 patients (25.5%) were diagnosed with ICU-AW. The duration of administration of muscle relaxant (OR: 2.358, 95%CI: 1.693-3.283, P<0.001) and the Aristotle basic complexity levels (OR: 2.997, 95%CI: 1.383-6.495, P=0.005) were identified as risk factors for ICU-AW in the multivariate analysis. Conclusion: ICU-AW was observed in 25.5% of the pediatric patients after congenital heart surgery. Pre-existing heart disease and post-operative management were identified as risk factors for ICU-AW in children with congenital heart disease.

Background: Low serum albumin after esophagectomy has been reported to be associated with postoperative complications. There is controversy regarding the factors associated with serum albumin reduction after esophagectomy. This study was conducted to determine the degree of reduction in serum albumin level and the risk factors for reduction of serum albumin level after esophagectomy. Methods: After institutional ethics committee approval was obtained, a retrospective review was conducted of 121 patients who underwent thoracoscopic esophagectomy from January 2013 to June 2019. We evaluated relevant perioperative variables and serum albumin level before surgery and the next morning. Univariate analysis was performed to test the associations between perioperative factors and albumin reduction, and potential correlation factors were assessed by multiple regression analysis. Results: The median degree of albumin reduction after surgery was 35.1%(interquartile range, 30.8-40.5). Univariate analysis showed that operation time, intraoperative bleeding, and fluid intake until the next morning were factors associated with albumin reduction. Multiple regression analysis also showed that operation time, intraoperative bleeding and fluid intake until the next morning were independent factors related to albumin reduction. Conclusion: Serum albumin level decreased by about 35% after esophagectomy. Operation time, intraoperative bleeding and fluid intake until the next morning were independent factors related to albumin reduction.