Early outcomes of hybrid endovascular repair for distal aortic arch aneurysm at Chiangrai Prachanukroh Hospital
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Abstract
BACKGROUND: Conventional surgical repair of distal aortic arch aneurysm carries high risk and significant morbidity, particularly in high-risk patients. Hybrid endovascular repair offers a less invasive alternative with reduced perioperative risk.
OBJECTIVE: To evaluate the early outcomes of hybrid endovascular repair for aortic arch aneurysm at Chiangrai Prachanukroh Hospital.
METHODS: A retrospective study was conducted among patients who underwent hybrid endovascular repair for aortic arch aneurysm between July 2023 and April 2025. Patient data were collected from medical records, including clinical characteristics, surgical techniques, and early outcomes. Data were analyzed using descriptive statistics.
RESULTS: 8 patients were included, comprising 5 females (62.5%), with a mean age of 70.4 years. The most common comorbidity was hypertension (87.5%), and 37.5% of patients had a history of smoking. The mean estimated glomerular filtration rate (eGFR) was 60.4 ml/min/1.73m². Five patients (62.5%) underwent emergency surgery, including one case of aortic dissection and four cases of aneurysm, while three patients (37.5%) underwent elective surgery. The mean aneurysm diameter was 6.4 cm (range 4.5–11 cm). Surgical techniques included carotid-carotid-left subclavian artery (LSCA) bypass in 37.5%, carotid-LSCA bypass in 50%, and innominate artery translocation via median sternotomy in two cases. All procedures were performed as one-stage operations. The proximal landing zones were zone 0 in 2 patients, zone 1 in 3 patients, and zone 2 in 3 patients. Postoperatively, one patient (12.5%) developed stroke. The mean intensive care unit (ICU) stay was 6.9 days, and the mean hospital stay was 8.4 days.
CONCLUSIONS AND RECOMMENDATIONS: Hybrid endovascular repair is a suitable and safe treatment option for patients with distal aortic arch aneurysm, particularly those at high surgical risk. However, this study was limited by its short follow-up duration and small sample size. Further studies with long-term follow-up and larger sample sizes are needed to evaluate the durability of the repair and potential complications.
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