Systematic review and meta-analysis of the early and late outcomes of open and endovascular repair of abdominal aortic aneurysm
TL;DR: The aim of this study was to investigate 30‐day and long‐term mortality, reintervention, rupture and morbidity after EVAR and open repair for AAA in a systematic review.
Abstract: Background
Any possible long-term benefit from endovascular (EVAR) versus open surgical repair for abdominal aortic aneurysm (AAA) remains unproven. Long-term data from the Open Versus Endovascular Repair (OVER) trial add to the debate regarding long-term all-cause and aneurysm-related mortality. The aim of this study was to investigate 30-day and long-term mortality, reintervention, rupture and morbidity after EVAR and open repair for AAA in a systematic review.
Methods
Standard PRISMA guidelines were followed. Random-effects Mantel–Haenszel meta-analysis was performed to evaluate mortality and morbidity outcomes.
Results
The existing published randomized trials, together with information from Medicare and SwedVasc databases, were included in a meta-analysis. This included 25 078 patients undergoing EVAR and 27 142 undergoing open repair for AAA. Patients who had EVAR had a significantly lower 30-day or in-hospital mortality rate (1·3 per cent versus 4·7 per cent for open repair; odds ratio (OR) 0·36, 95 per cent confidence interval 0·21 to 0·61; P < 0·001). By 2-year follow-up there was no difference in all-cause mortality (14·3 versus 15·2 per cent; OR 0·87, 0·72 to 1·06; P = 0·17), which was maintained after at least 4 years of follow-up (34·7 versus 33·8 per cent; OR 1·11, 0·91 to 1·35; P = 0·30). There was no significant difference in aneurysm-related mortality by 2 years or longer follow-up. A significantly higher proportion of patients undergoing EVAR required reintervention (P = 0·003) and suffered aneurysm rupture (P < 0·001).
Conclusion
There is no long-term survival benefit for patients who have EVAR compared with open repair for AAA. There are also significantly higher risks of reintervention and aneurysm rupture after EVAR.
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TL;DR: A door‐to‐intervention time of <90 minutes is suggested, based on a framework of 30‐30‐30 minutes, for the management of the patient with a ruptured aneurysm, and the Vascular Quality Initiative mortality risk score is suggested for mutual decision‐making with patients considering aneurYSm repair.
1,542 citations
TL;DR: Editor's Choice – European Society for Vascular Surgery (ESVS) 2019 Clinical Practice Guidelines on the Management of Abdominal Aorto-iliac Artery Aneurysms.
1,493 citations
TL;DR: Clinicians will find the recommendations in these revised CPGs useful in their daily work and can be reassured that the recommendations have been vetted thoroughly by the most rigorous scientific process, so that cardiovascular clinicians worldwide may deliver optimal, standardized care.
Abstract: AAA
: abdominal aortic aneurysm
ACEI
: angiotensin converting enzyme inhibitor
ACS
: acute coronary syndromes
AF
: atrial fibrillation
AKI
: acute kidney injury
AKIN
: Acute Kidney Injury Network
ARB
: angiotensin receptor blocker
ASA
: American Society of Anesthesiologists
b.i.d.
: bis in diem (twice daily)
BBSA
: Beta-Blocker in Spinal Anesthesia
BMS
: bare-metal stent
BNP
: B-type natriuretic peptide
bpm
: beats per minute
CABG
: coronary artery bypass graft
CAD
: coronary artery disease
CARP
: Coronary Artery Revascularization Prophylaxis
CAS
: carotid artery stenting
CASS
: Coronary Artery Surgery Study
CEA
: carotid endarterectomy
CHA2DS2-VASc
: cardiac failure, hypertension, age ≥75 (doubled), diabetes, stroke (doubled)-vascular disease, age 65–74 and sex category (female)
CI
: confidence interval
CI-AKI
: contrast-induced acute kidney injury
CKD
: chronic kidney disease
CKD-EPI
: Chronic Kidney Disease Epidemiology Collaboration
Cmax
: maximum concentration
CMR
: cardiovascular magnetic resonance
COPD
: chronic obstructive pulmonary disease
CPG
: Committee for Practice Guidelines
CPX/CPET
: cardiopulmonary exercise test
CRP
: C-reactive protein
CRT
: cardiac resynchronization therapy
CRT-D
: cardiac resynchronization therapy defibrillator
CT
: computed tomography
cTnI
: cardiac troponin I
cTnT
: cardiac troponin T
CVD
: cardiovascular disease
CYP3a4
: cytochrome P3a4 enzyme
DAPT
: dual anti-platelet therapy
DECREASE
: Dutch Echocardiographic Cardiac Risk Evaluation Applying Stress Echocardiography
DES
: drug-eluting stent
DIPOM
: DIabetic Post-Operative Mortality and Morbidity
DSE
: dobutamine stress echocardiography
ECG
: electrocardiography/electrocardiographically/electrocardiogram
eGFR
: estimated glomerular filtration rate
ESA
: European Society of Anaesthesiology
ESC
: European Society of Cardiology
EVAR
: endovascular abdominal aortic aneurysm repair
FEV1
: Forced expiratory volume in 1 second
HbA1c
: glycosylated haemoglobin
HF-PEF
: heart failure with preserved left ventricular ejection fraction
HF-REF
: heart failure with reduced left ventricular ejection fraction
ICD
: implantable cardioverter defibrillator
ICU
: intensive care unit
IHD
: ischaemic heart disease
INR
: international normalized ratio
IOCM
: iso-osmolar contrast medium
KDIGO
: Kidney Disease: Improving Global Outcomes
LMWH
: low molecular weight heparin
LOCM
: low-osmolar contrast medium
LV
: left ventricular
LVEF
: left ventricular ejection fraction
MaVS
: Metoprolol after Vascular Surgery
MDRD
: Modification of Diet in Renal Disease
MET
: metabolic equivalent
MRI
: magnetic resonance imaging
NHS
: National Health Service
NOAC
: non-vitamin K oral anticoagulant
NSQIP
: National Surgical Quality Improvement Program
NSTE-ACS
: non-ST-elevation acute coronary syndromes
NT-proBNP
: N-terminal pro-BNP
O2
: oxygen
OHS
: obesity hypoventilation syndrome
OR
: odds ratio
P gp
: platelet glycoprotein
PAC
: pulmonary artery catheter
PAD
: peripheral artery disease
PAH
: pulmonary artery hypertension
PCC
: prothrombin complex concentrate
PCI
: percutaneous coronary intervention
POBBLE
: Peri-Operative Beta-BLockadE
POISE
: Peri-Operative ISchemic Evaluation
POISE-2
: Peri-Operative ISchemic Evaluation 2
q.d.
: quaque die (once daily)
RIFLE
: Risk, Injury, Failure, Loss, End-stage renal disease
SPECT
: single photon emission computed tomography
SVT
: supraventricular tachycardia
SYNTAX
: Synergy between Percutaneous Coronary Intervention with TAXUS and Cardiac Surgery
TAVI
: transcatheter aortic valve implantation
TdP
: torsades de pointes
TIA
: transient ischaemic attack
TOE
: transoesophageal echocardiography
TOD
: transoesophageal doppler
TTE
: transthoracic echocardiography
UFH
: unfractionated heparin
VATS
: video-assisted thoracic surgery
VHD
: valvular heart disease
VISION
: Vascular Events In Noncardiac Surgery Patients Cohort Evaluation
VKA
: vitamin K antagonist
VPB
: ventricular premature beat
VT
: ventricular tachycardia
Guidelines summarize and evaluate all available evidence, at the time of the writing process, on a particular issue with the aim of assisting health professionals in selecting the best management strategies for an individual patient with a given condition, taking into account the impact on outcome, as well as the risk–benefit ratio of particular diagnostic …
1,353 citations
TL;DR: Autores/Miembros del Grupo de Trabajo: Raimund Erbel ( coordinador) (Alemania), Victor Aboyans (Coordinado) ( Francia), Catherine Boileau (Francia), Eduardo Bossone (Italia), Roberto Di Bartolomeo (It Italy), Holger Eggebrecht (AleGermany)
Abstract: Autores/Miembros del Grupo de Trabajo: Raimund Erbel (Coordinador) (Alemania), Victor Aboyans (Coordinador) (Francia), Catherine Boileau (Francia), Eduardo Bossone (Italia), Roberto Di Bartolomeo (Italia), Holger Eggebrecht (Alemania), Arturo Evangelista (Espana), Volkmar Falk (Suiza), Herbert Frank (Austria), Oliver Gaemperli (Suiza), Martin Grabenwoger (Austria), Axel Haverich (Alemania), Bernard Iung (Francia), Athanasios John Manolis (Grecia), Folkert Meijboom (Paises Bajos), Christoph A. Nienaber (Alemania), Marco Roffi (Suiza), Herve Rousseau (Francia), Udo Sechtem (Alemania), Per Anton Sirnes (Noruega), Regula S. von Allmen (Suiza) y Christiaan J.M. Vrints (Belgica)
963 citations
References
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TL;DR: A new quantity is developed, I 2, which the authors believe gives a better measure of the consistency between trials in a meta-analysis, which is susceptible to the number of trials included in the meta- analysis.
Abstract: Cochrane Reviews have recently started including the quantity I 2 to help readers assess the consistency of the results of studies in meta-analyses. What does this new quantity mean, and why is assessment of heterogeneity so important to clinical practice?
Systematic reviews and meta-analyses can provide convincing and reliable evidence relevant to many aspects of medicine and health care.1 Their value is especially clear when the results of the studies they include show clinically important effects of similar magnitude. However, the conclusions are less clear when the included studies have differing results. In an attempt to establish whether studies are consistent, reports of meta-analyses commonly present a statistical test of heterogeneity. The test seeks to determine whether there are genuine differences underlying the results of the studies (heterogeneity), or whether the variation in findings is compatible with chance alone (homogeneity). However, the test is susceptible to the number of trials included in the meta-analysis. We have developed a new quantity, I 2, which we believe gives a better measure of the consistency between trials in a meta-analysis.
Assessment of the consistency of effects across studies is an essential part of meta-analysis. Unless we know how consistent the results of studies are, we cannot determine the generalisability of the findings of the meta-analysis. Indeed, several hierarchical systems for grading evidence state that the results of studies must be consistent or homogeneous to obtain the highest grading.2–4
Tests for heterogeneity are commonly used to decide on methods for combining studies and for concluding consistency or inconsistency of findings.5 6 But what does the test achieve in practice, and how should the resulting P values be interpreted?
A test for heterogeneity examines the null hypothesis that all studies are evaluating the same effect. The usual test statistic …
45,105 citations
TL;DR: A structured summary is provided including, as applicable, background, objectives, data sources, study eligibility criteria, participants, interventions, study appraisal and synthesis methods, results, limitations, conclusions and implications of key findings.
31,379 citations
TL;DR: An instrument to assess the quality of reports of randomized clinical trials (RCTs) in pain research is described and its use to determine the effect of rater blinding on the assessments of quality is described.
15,740 citations
TL;DR: Endovascular repair is preferable to open repair in patients who have an abdominal aortic aneurysm that is at least 5 cm in diameter and long-term follow-up is needed to determine whether this advantage is sustained.
Abstract: Background Although the initial results of endovascular repair of abdominal aortic aneurysms were promising, current evidence from controlled studies does not convincingly show a reduction in 30-day mortality relative to that achieved with open repair. Methods We conducted a multicenter, randomized trial comparing open repair with endovascular repair in 345 patients who had received a diagnosis of abdominal aortic aneurysm of at least 5 cm in diameter and who were considered suitable candidates for both techniques. The outcome events analyzed were operative (30-day) mortality and two composite end points of operative mortality and severe complications and operative mortality and moderate or severe complications. Results The operative mortality rate was 4.6 percent in the open-repair group (8 of 174 patients; 95 percent confidence interval, 2.0 to 8.9 percent) and 1.2 percent in the endovascular-repair group (2 of 171 patients; 95 percent confidence interval, 0.1 to 4.2 percent), resulting in a risk ratio ...
1,891 citations
TL;DR: In patients with large AAAs, treatment by EVAR reduced the 30-day operative mortality by two-thirds compared with open repair, and any change in clinical practice should await durability and longer term results.
1,870 citations