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Updated: May 15, 2025

Decellularization and Recellularization Methodology for Human Saphenous Veins
Published on: July 27, 2018
Specific family refusal to donate blood vessels for transplantation
Ana Paula de Oliveira Pires1, Rafael Rodrigo da Silva Pimentel2,3, Edvaldo Leal de Moraes4
1Universidade de São Paulo, São Paulo, Brazil. anapaulasp_pires@usp.br.
Insights
Family refusal to donate blood vessels for transplantation is common, influenced by factors like age and cause of death. Understanding these factors is key to increasing blood vessel donation rates.
Area of Science:
- Cardiovascular Surgery
- Transplantation Medicine
- Public Health
Background:
- Cardiovascular diseases are a leading global cause of mortality.
- Blood vessel transplantation offers a vital alternative for managing cardiovascular disease complications.
- Family consent is crucial for organ and tissue donation.
Purpose of the Study:
- To investigate factors influencing family refusal of blood vessel donation for transplantation.
- To analyze refusal rates within an Organ Procurement Organization in São Paulo, Brazil.
- To identify demographic and clinical variables associated with donation refusal.
Main Methods:
- Cross-sectional study design.
- Analysis of data from brain-dead patients within an Organ Procurement Organization.
- Variables included donor demographics, cause of death, and hospital type.
Main Results:
- 37.71% of families refused blood vessel donation.
- Refusal was associated with donor sex, age (41-59 years), traumatic brain injury, and public hospitals.
- Donation refusal decreased significantly over two decades, particularly in older age groups.
Conclusions:
- Family refusal of blood vessel donation is multifactorial.
- Targeted strategies are needed to address specific refusal determinants.
- Further research is essential to improve blood vessel donation rates and transplantation outcomes.
Abstract:
Cardiovascular diseases have become the leading cause of death worldwide in recent years. Therefore, blood vessel transplantation is an alternative to reduce complications and deaths resulting from cardiovascular diseases. Therefore, this study aims to analyze specific family refusal to donate blood vessels for transplantation in an Organ Procurement Organization. This is a cross-sectional study carried out in accordance with Family Authorization for Organ and Tissue Donation Terms of patients diagnosed with brain death by an Organ Procurement Organization in the state of São Paulo, Brazil. The variables analyzed were sex, age, cause of death, hospital institution and refusal to donate blood vessels. Descriptive and inferential data analysis was performed. Of 2,447 donors, 37.71% refused to donate vessels, influenced by sex, age group of 41-59 years, traumatic brain injury as the cause of death and public hospitals. Refusal varied with age, as it decreased up to 11 years and increased after 60 years. From 2001 to 2020, refusal decreased by 57%, 64%, 68% and 69% for the age groups of 12-19 years, 20-40 years, 41-59 years and 60 years and over, respectively. Donors from public institutions were 18% less likely to refuse donation. Refusal to donate blood vessels for transplantation was associated with all variables analyzed. More research is needed to support strategies that reduce the rejection of these tissues.
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