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Objectives Analysis of patient injuries offers possibilities for improving quality in patient care. The aim of this study was to identify errors and adverse events leading to patient injuries in the treatment of internal carotid artery stenosis (ICAS). Methods A retrospective analysis was performed on data from Finnish patient injury claims and patient insurance center decisions in the treatment of ICAS, 2004–2017. Contributing factors to injury were identified and evaluated. Results During the 14-year study period, 42 patient injury claims involving ICAS treatment were closed in Finland. One claim involved carotid artery stenting, and the other operations were carotid artery endarterectomies. Nine of the claims were compensated (seven for operations and two for evaluations). Fully trained vascular surgeons had carried out all the operations and evaluations. Stroke was the most common complaint in the claims ( n = 12). Six of the compensated patients were symptomatic prior to the interventions. Injuries were related to errors in decision-making and patient selection in two cases. Four patients received compensation for nerve injury and three for stroke. No deaths were compensated as patient injuries. Most negative claim decisions were related to the injury having been unavoidable. Conclusion Compensated patient injuries involving the treatment of ICAS are rare but often serious and mostly involve open surgery. Patient injury claims provide a valuable source of information for recognizing errors in care and offer possibilities to improve patient safety.

Objectives This study aimed to identify the unintended incidents that led to patient injuries (PIs) in the treatment of superficial venous insufficiency (SVI). Methods PI claims filed with the Finnish Patient Insurance Centre between 2004 and 2017 involving SVI were reviewed. Factors contributing to PI were identified and classified. Results Eighteen (13.2%) of 136 compensated PIs in the specialty of vascular surgery were related to SVI. Only 4.7% of 383 SVI claims were compensated. The incidence of PIs was 9.9 per 100 000 patients. Fifteen patients had open surgery (83.3%) and three (16.7%) endovenous treatment. Two (11.1%) patients had necrotising fasciitis, four (22.1%) had deep vein injuries and two (11.1%) had a permanent nerve injury. Two (11.1%) patients had retained endovenous material that required surgical removal. Conclusions PIs were identifiable during all stages of care, perioperative injuries related to open surgery being the most common.