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Background: Impairment of the heart valves can occur due to many diseases that cause deterioration of the contractile function and harm the body, making it necessary for the heart valves to be transplanted. This study's objective was to analyze families' refusal to donate heart valves between 2001 and 2020., Methods: This was a cross-sectional study conducted in accordance with the Terms of Family Authorization for Donation of Organs and Tissues from patients diagnosed with brain death by an Organ Procurement Organization in the state of São Paulo. The variables analyzed were sex, age, cause of death, hospital type (private or public), and refusal to donate heart valves. Data analysis was performed using Stata software version 15.0  (StataCorp, LLC, College Station, Tex, United States) in a descriptive and inferential way., Results: A total of 236 people (9.65%) refused to specifically donate heart valves of their relatives, the majority of whom were between 41 and 59 years old. Most potential donors had suffered a stroke and had been in a private hospital. From 2001 to 2009, there was a decreasing trend in males and the age group from 0 to 11 years old, whereas there was an increasing trend in those aged 60 years or older and in the general population. Between 2010 and 2020, there was a downward trend in the 41- to 59-year-old age group and the general population., Conclusions: The specific refusal to donate heart valves was associated with age, diagnosis, and whether the institution was public or private., Competing Interests: Declaration of Competing Interest The authors declare no conflicts of interest., (Copyright © 2023 Elsevier Inc. All rights reserved.)

Background: Brain death (BD) is defined as the total and irreversible cessation of brain functions including the brain stem. The team that assists the patient in this situation is made up of higher-level and technical health professionals. Our objective was to analyze the understanding of nursing assistants and technicians of BD., Methods: Descriptive and exploratory research with a qualitative approach was carried out with nursing assistants and technicians who were members of the Regional Nursing Council of São Paulo, Brazil. After collection, the data were submitted to the thematic-category content analysis technique., Results: From the analysis, the following categories emerged: an understanding of BD; religiosity and hope in the reversal of BD; and "brain death associated with the possibility of organ donation.", Conclusions: This study reinforces the need to train professionals at a technical nursing level on the subject in order to improve nursing care and avoid mistaken beliefs that can negatively influence the process of donating organs and tissues for transplantation., (Copyright © 2022 Elsevier Inc. All rights reserved.)