Observational studyThe British journal of surgery2026
Nationwide outcomes of endovascular thoracoabdominal aortic aneurysm repair.
Observational study in The British journal of surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundComplex endovascular repair has emerged as a minimally invasive alternative for thoracoabdominal aortic aneurysms (TAAAs). The aim of this study was to assess the short- and mid-term outcomes of endovascular TAAA repair in Sweden.
methodsAll endovascular TAAA repairs performed during 2018-2023 were identified in the Swedish Vascular (Swedvasc) Registry. Patient characteristics, operative details, and outcomes were analysed. The primary outcome was survival; secondary outcomes included complications and thoracoabdominal aortic life-altering events (TALEs). Predictors of mid-term outcomes were assessed in multivariable analysis.
resultsSome 339 patients were treated for TAAAs, which included 476 repairs (366 elective repairs and 110 emergency repairs) across 11 centres (94% concentrated in 5 centres). Elective patients (235 patients; mean diameter 64 mm) had 30-day, 90-day, and 1-year mortality of 2.6%, 3.5%, and 12.4% respectively. Major complications, vascular complications, and TALEs occurred in 16.2%, 9.8%, and 14% respectively. The use of prophylactic spinal drainage declined over time (from 68% to 14%) and the incidence of spinal cord ischaemia declined over time (from 20% to 2.3%). Mean(s.e.) 1-year and 4-year Kaplan-Meier survival estimates were 89.3%(2.1%) and 73.5%(3.7%) respectively. Emergency patients (104 patients; mean diameter 73 mm) had 30-day, 90-day, and 1-year mortality of 12.5%, 17.6%, and 26.9% respectively. Major complications, vascular complications, and TALEs occurred in 20.2%, 12.5%, and 24% respectively. Mean(s.e.) 1-year and 4-year Kaplan-Meier survival estimates were 75.2%(4.3%) and 56.5%(6.2%) respectively. Perioperative myocardial infarction was the strongest predictor of 1-year mortality after both elective and emergency repair.
conclusionEndovascular TAAA repair in Sweden is associated with significant complication rates, but acceptable mid-term survival. Further research should focus on perioperative refinements, especially with regard to preserving organ function.
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