Challenges in Hemodialysis: An Analytic Study of Nurses' Cannulation Failures

Background/Objectives: Nurses and dialysis technicians are primarily responsible for cannulation in in-center and satellite dialysis units. Despite being a core component of hemodialysis care, existing clinical guidelines offer limited standardization, resulting in practice variability across facilities. Therefore, clinical expertise and adherence to consistent standards are essential to ensure safe and effective vascular access management. The study aimed to investigate the variables related to patients and nurses that contribute to unsuccessful vascular access cannulations, as well as the actions taken in response to cannulation failure, in a tertiary dialysis center in the Eastern Region of Saudi Arabia. Methods: This retrospective analytic study reviewed the records of 228 adult hemodialysis patients at King Fahad Military Medical Complex from 2020 to 2024, analyzing demographic, clinical, vascular access, and nursing variables associated with cannulation failure using descriptive statistics, the chi-square test, and t-tests. Ethical approval was obtained, and data were de-identified and manually extracted from nursing and dialysis documentation. Results: Most patients had hypertension and diabetes, with significant comorbidity burdens. Infiltration (61%) and clot formation (30.7%) were the primary complications of cannulation failure. Significant associations emerged with recurrent stroke and peripheral vascular disease, but not with nurse or patient demographics, suggesting vascular factors outweigh staff variables in cannulation risk. Cannulation failures were most common in patients with vascular comorbidities, while staff experience and education had no significant impact. Conclusions: Recommendations include implementing tailored protocols, providing ongoing nurse education, conducting systematic vascular assessments, and holding regular team reviews to enhance access outcomes and patient safety.