Outcomes of Nonagenarian Patients in Vascular Surgery Service in a Tertiary Institution
Authors: Ali Ahmed Azhar , Hamwi Tarek , Fernandez Prendes Carlota , Sikman Laura , Konstantinou Nikolaos , Stana Jan , Tsilimparis Nikolaos 
Published: October 2024

Introduction: With the world population growing and aging, nonagenarians have become a distinct patient cohort with specific characteristics that render the prediction of outcomes essential. We aimed to investigate the specific characteristics of this patient’s cohort in a tertiary vascular center. Materials and Methods: Retrospective analysis was conducted for all consecutive patients 90 years and above referred or treated in the Department of Vascular Surgery between January 2017 and December 2022 for vascular pathologies. The main endpoint was to analyze the type of vascular services required for nonagenarians. Additional endpoints involved evaluation of treatment outcomes during the study period based on medical records. The analysis was patient-based. Results: A total of 148 nonagenarians were included in the study. In all, 71 (48%) of the patients underwent surgery, whereas 77 (52%) had conservative treatment. Most of the patients were referred for peripheral arterial (PAD; 56, 37.8%) and aortic-related (39, 26.4%) diseases. Other pathologies encountered involved acute limb ischemia (ALI; 25, 16.9%), carotid diseases (12, 8.1%), renal/dialysis-related consultations (8, 5.4%), and referrals from other departments (12, 5.4%). Urgent interventions were performed in 27% of the cases. Indications for surgery included PAD Rutherford Stages IV, V, and VI; symptomatic and ruptured aortic aneurysms; ALI Rutherford Stages I, IIa, and IIb; symptomatic and near total occlusion asymptomatic carotid disease; and dialysis-related procedures for patients with chronic renal failure on regular hemodialysis. Perioperative complications were experienced in 22 patients (14.9%), the 30-day reintervention rate was 7.4%, and 30-day mortality was 4.7%. The overall length of hospital stay for operated patients was a median of 8 nights. Conclusion: The proportion of nonagenarians in the population is growing and so is their referral to vascular surgery. Satisfactory short-term treatment outcomes can be achieved in this highly selected cohort of patients. Thirty-day mortality is higher in patients undergoing urgent procedures. Follow-up mortality was higher in the operated nonagenarians as compared with those who were treated conservatively. Careful patient selection and thorough preparation are crucial to enhance clinical outcomes. Further research on therapy outcomes of nonagenarians will enable physicians to make better evidence-based approaches to individual patients and should be encouraged. Clinical Impact The study highlights the growing need to manage vascular diseases in nonagenarians, emphasizing that age alone should not exclude patients from surgical interventions. By demonstrating acceptable short-term outcomes with careful patient selection, this research challenges the traditional bias against operating on the elderly. Clinicians should refine risk assessment and treatment plans, particularly when balancing surgical and conservative options. Comorbidities, rather than age, are key determinants of patient suitability, encouraging more individualized, evidence-based approaches in this expanding demographic.