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. 2022 Jul 15;109(8):711-716.
doi: 10.1093/bjs/znac049.

Open extent IV thoracoabdominal aneurysm repair: 22-year experience of the Scottish National Service

Rachael O Forsythe  1 , Calvin Eng  1 , Chloe Roy  1 , John Cafferkey  1 , Darja Clinch  1 , Nicholas Ventham  1 , Andrew L Tambyraja  1 , Phillipa J Burns  1 , Orwa Falah  1 , Roderick T A Chalmers  1
Affiliations

Open extent IV thoracoabdominal aneurysm repair: 22-year experience of the Scottish National Service

Rachael O Forsythe et al. Br J Surg. .

Abstract

Background: Since 1999, the Scottish National Service for Thoracoabdominal Aneurysms has offered repair of thoracoabdominal aneurysms (TAAAs) to a population of 5.5 million people. The open operation most commonly performed by the service is the extent IV TAAA repair.

Methods: All extent IV open TAAA repairs performed at the Scottish National Service for TAAAs from June 1999 until April 2021 were evaluated for clinical features, technical details, and clinical outcomes. The primary outcome measure was 30-day mortality; secondary outcomes included short-term (90 days, 6 months, 1 and 2 years) and long-term (5 and 10 years) survival, perioperative complications, and reintervention. Survival was assessed using Kaplan-Meier analysis.

Results: Some 248 patients underwent extent IV TAAA repair, with elective surgery in 204 (82.3 per cent). A totally abdominal transperitoneal approach was used for all patients, with a median visceral ischaemia time of 40 (i.q.r. 35-48) min. Overall, 18 patients (7.3 per cent) died within 30 days. The proportion of patients surviving at 90 days, 6 months, 1, 2, 5, and 10 years was 0.91, 0.90, 0.89, 0.85, 0.72, and 0.41, respectively. Ten patients (4.0 per cent) required a reintervention while in hospital, four (1.6 per cent) experienced permanent spinal cord ischaemia, 19 (7.9 per cent) required temporary renal replacement therapy (RRT), and four (1.6 per cent) required permanent RRT.

Conclusion: Open extent IV TAAA repair performed in a high-volume national centre is associated with favourable short- and long-term survival, and acceptable complication rates.

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Figures

Fig. 1
Fig. 1
Current preoperative assessment schematic for patients with type IV thoracoabdominal aortic aneurysm referred to the Scottish National Service for Thoracoabdominal Aneurysms TAAA, thoracoabdominal aortic aneurysm; FEV, forced expiratory volume.
Fig. 2
Fig. 2
Kaplan–Meier survival curve illustrating cumulative survival after open type IV thoracoabdominal aortic aneurysm repair Patients were censored at death or end of follow-up (6 June 2021).
See this image and copyright information in PMC

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