Association between arteriovenous fistulae and hematomas in a dialysis center in the state of Rio Grande do Sul, southern Brazil

Regina Helena Medeiros; Thiago Pereira Kovalski; Sandie Lauren Mueller Kovalski; Clenice Pudlo; Cristiani Sarro; Jane Maria Cornelli; Luciano da Silva Selistre; Vagner Reinaldo Zingalli Bueno Pereira; Jonas Michel Wolf

doi:10.22491/2357-9730.84119

Association between arteriovenous fistulae and hematomas in a dialysis center in the state of Rio Grande do Sul, southern Brazil

Authors

Regina Helena Medeiros Hospital Geral de Caxias do Sul, Universidade de Caxias do Sul (UCS). Caxias do Sul, RS, Brasil
Thiago Pereira Kovalski Hospital Geral de Caxias do Sul, Universidade de Caxias do Sul (UCS). Caxias do Sul, RS, Brasil.
Sandie Lauren Mueller Kovalski Hospital Geral de Caxias do Sul, Universidade de Caxias do Sul (UCS). Caxias do Sul, RS, Brasil
Clenice Pudlo Hospital Geral de Caxias do Sul, Universidade de Caxias do Sul (UCS). Caxias do Sul, RS, Brasil
Cristiani Sarro Hospital Geral de Caxias do Sul, Universidade de Caxias do Sul (UCS). Caxias do Sul, RS, Brasil.
Jane Maria Cornelli Hospital Geral de Caxias do Sul, Universidade de Caxias do Sul (UCS). Caxias do Sul, RS, Brasil.
Luciano da Silva Selistre Programa de Pós-Graduação em Ciências da Saúde, Universidade de Caxias do Sul (UCS). Caxias do Sul, RS, Brasil
Vagner Reinaldo Zingalli Bueno Pereira Hospital Geral de Caxias do Sul, Universidade de Caxias do Sul (UCS). Caxias do Sul, RS, Brasil. Programa de Pós-Graduação em Biologia Celular e Molecular Aplicada à Saúde, Universidade Luterana do Brasil (ULBRA), Canoas, Rio Grande do Sul, Brasil.
Jonas Michel Wolf Universidade Luterana do Brasil

DOI:

https://doi.org/10.22491/2357-9730.84119

Keywords:

Arteriovenous fistula, hematoma, chronic renal failure

Abstract

Introduction: Chronic kidney disease (CKD) is characterized by slow, progressive, and irreversible loss of kidney function. CKD has become a serious public health issue because of its increasing morbidity and mortality rates. The present study aimed to investigate factors associated with hematomas caused by arteriovenous fistula (AVF) at a Renal Replacement Therapy Unit in the state of Rio Grande do Sul, southern Brazil.

Methods: In this cross-sectional study, 72 patients with CKD aged 18 years or over, presenting with AVF, and undergoing three hemodialysis sessions per week were evaluated from June 2014 to March 2015. Prevalence ratios (PRs) with 95% confidence intervals (95% CIs) were estimated for identification of risk factors associated with AVF. P-values < 0.05 were considered significant.

Results: Sex, age, self-reported skin color, educational level, hypertension, diabetes, nephrotic syndrome, congestive heart failure, and hepatitis C were not associated with hematoma formation (i.e., all estimated PRs had p-values > 0.05). The single factor associated with hematomas was AVF time shorter than 60 days (PR = 2.04; 95% CI: 1.28-3.27; p < 0.01).

Conclusion: AVF maturation time was associated with higher prevalence of hematomas at the cannulation site. Therefore, AVF time should be given special attention in patients undergoing renal therapy at dialysis centers.

Keywords: Arteriovenous fistula; hematoma; chronic renal failure

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2018-11-01

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Medeiros RH, Kovalski TP, Kovalski SLM, Pudlo C, Sarro C, Cornelli JM, et al. Association between arteriovenous fistulae and hematomas in a dialysis center in the state of Rio Grande do Sul, southern Brazil. Clin Biomed Res [Internet]. 2018 Nov. 1 [cited 2025 Aug. 29];38(3). Available from: https://seer.ufrgs.br/index.php/hcpa/article/view/84119

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Vol. 38 No. 3 (2018): Clinical and Biomedical Research

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Association between arteriovenous fistulae and hematomas in a dialysis center in the state of Rio Grande do Sul, southern Brazil

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