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Angiologia e Cirurgia Vascular
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Angiologia e Cirurgia Vascular
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Angiologia e Cirurgia Vascular
Article . 2015
License: CC BY NC ND
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Dez anos de tratamento de aneurismas da aorta abdominal – exclusão endovascular vs. cirurgia aberta nas diferentes regiões portuguesas

Authors: Castro-Ferreira, Ricardo; Neiva-Sousa, Manuel; Sampaio, Sérgio; Dias, Paulo Gonçalves; Costa-Pereira, Altamiro da; Freitas, Alberto;

Dez anos de tratamento de aneurismas da aorta abdominal – exclusão endovascular vs. cirurgia aberta nas diferentes regiões portuguesas

Abstract

ResumoIntroduçãoOs aneurismas da aorta abdominal (AAA) afetam cerca de 5% dos homens com mais de 65 anos estimando‐se serem a décima causa de morte nos países ocidentais. A cirurgia aberta (CA) ou a sua exclusão endovascular (EVAR) estão indicadas para prevenir a rotura em doentes com AAA de elevado diâmetro, evitando assim a sua principal complicação. Um estudo detalhado que compare a escolha entre CA e EVAR, bem como a sua mortalidade intra‐hospitalar nas diferentes regiões de Portugal continental, nunca foi realizado.ObjetivoDeterminar i) a proporção de AAA em rotura vs. íntegros submetidos a intervenção em cada região de Portugal continental, ii) a proporção de cada tipo de intervenção e iii) a respetiva mortalidade hospitalar.MétodosForam selecionados todos os doentes incluídos na base de dados administrativa de internamentos hospitalares com o diagnóstico de AAA, em rotura ou íntegros, submetidos a CA ou EVAR, no período compreendido entre 2000‐2010. A referida base de dados contém dados relativos a todos os episódios em hospitais públicos de Portugal continental. Foram avaliados os tipos AAA, o tipo de correção e a mortalidade intra‐hospitalar da mesma, para cada região nacional.ResultadosForam registadas 3.101 correções de AAA entre 2000‐2010 em Portugal continental. A reparação de AAA íntegros foi 3 vezes mais frequente do que a intervenção em AAA em rotura (75 vs. 25%). A comparação regional demostrou que a relação de AAA íntegros/AAA em rotura no Norte e Lisboa foi significativamente maior do que no Centro. A frequência de AAA em rotura manteve‐se constante para cada região ao logo dos 11 anos estudados em todas as regiões nacionais. A CA foi a técnica mais utilizada quer para AAA em rotura quer para AAA íntegros. No entanto, a correção endovascular aumentou progressivamente, sendo em 2010 o método mais frequente de reparação de AAA íntegros no Norte e em Lisboa (55% para ambas as regiões). A mortalidade nos AAA em rotura não apresentou diferenças estatisticamente significativas entre as diferentes regiões nacionais (52% no Norte, 52% no Centro e 51% em Lisboa), nem entre as diferentes abordagens cirúrgicas (51% na CA vs. 52% por EVAR). No tratamento dos AAA íntegros a EVAR apresentou menor mortalidade intra‐hospitalar na região Norte e em Lisboa (2,1 vs. 6,6% no Norte e 5,0 vs. 8,7% em Lisboa, p<0,05).ConclusãoO número de intervenções para tratamento de AAA tem vindo a aumentar em todas as regiões de Portugal continental, estando a EVAR progressivamente a assumir‐se como o tratamento de escolha. Para os AAA íntegros, a EVAR associou‐se a uma menor mortalidade hospitalar no Norte e em Lisboa.AbstractBackgroundAbdominal aortic aneurysms (AAA) affect approximately 5% of men over 65 years of age and are estimated to be the tenth leading cause of mortality in Western countries. Elective surgery either by open repair (OR) or endovascular aneurysm repair (EVAR) is indicated in patients with large AAAs, preventing rupture, the major complication of AAA. To the best of our knowledge a detailed study comparing the treatment choice for AAA repair as well as its associated in‐hospital mortality in Portuguese mainland state hospitals has never been performed.AimThe purpose of this analysis was to determine i) the proportion of aneurysm type submitted to repair in each region state hospitals, ii) the proportion of each type of surgical treatment among them, iii) the in‐hospital mortality associated with each treatment.MethodsAll individuals diagnosed with ruptured or non‐ruptured AAAs submitted to either OR or EVAR between 2000 and 2010, whose information was available on an inpatient hospital administrative database, were selected for the study. The database contained data from all Portuguese mainland state hospitals. To evaluate the regional chronological evolution of these data, a yearly characterization for the period between 2000 and 2010 was performed. The type of AAA, its choice of correction and the in‐hospital mortality were evaluated for each national region.ResultsBetween the years 2000 and 2010, 3101 AAAs repairs were registered in mainland Portugal. Non‐ruptured AAAs were three times more frequent than ruptured AAAs (75% vs. 25%). Regional comparison showed the non‐ruptured AAA/ruptured AAA ratio in Norte and Lisboa to be significantly higher than that in Centro. Ruptured AAA frequency remained fairly stable during the 11 years evaluated. OR was the preferred method for treatment of both ruptured and non‐ruptured AAAs in all regions. Nevertheless, the choice for EVAR has been increasing from the period of 2005 to 2010, actually becoming the most frequent method in Norte and Lisboa during 2010 (55% in both regions). Ruptured AAAs mortality was similar in all the evaluated regions (52% in Norte, 52% in Centro and 51% in Lisboa). No significant differences were found between EVAR and OR in the repair of ruptured AAA (in‐hospital mortality of 51% in OR vs. 52% in EVAR). A significant improved outcome was obtained with EVAR in the repair of non‐ruptured AAA in state hospitals of Norte and Lisboa (2,1% vs. 6,6% in Norte and 5,0% vs. 8,7% in Lisboa, p<0,05). No differences were observed in state hospitals of Centro.ConclusionsThe yearly number of AAA repairs in Portuguese mainland state hospitals is increasing across all regions, with EVAR repair consistently gaining prominence. Compared to OR, EVAR presents a more favourable in‐hospital mortality outcome in state hospitals of Norte and Lisboa, when used in elective surgeries for non‐ruptured AAA repairs.

Keywords

Ruptured aortic aneurysm, Open repair, Aneurisma da aorta abdominal, In‐hospital mortality, In-hospital mortality, Endovascular aneurysm repair, National administrative database, Abdominal aortic aneurysm, Mortalidade hospitalar, Cirurgia aberta, Aneurisma da aorta em rotura, Bases de dados administrativas, Exclusão endovascular

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
2
Average
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