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International Angiology 2020 Jun 09

DOI: 10.23736/S0392-9590.20.04406-5


lingua: Inglese

Abdominal compartment syndrome after r-EVAR: a systematic review with meta-analysis on incidence and mortality

Pedro SÁ 1, José OLIVEIRA-PINTO 1, 2 , Armando MANSILHA 1, 2

1 Faculty of Medicine of Porto, Porto, Portugal; 2 Department of Vascular Surgery, Hospital São João, Porto, Portugal

INTRODUCTION: Endovascular aneurysm repair for ruptured abdominal aortic aneurysms (r-EVAR) sometimes complicates with abdominal compartment syndrome (ACS) due to extensive retroperitoneal hematoma, with significant prognostic implications. This systematic review aimed to analyze the incidence of the syndrome and assess the impact of ACS on mortality. Mortality after decompressive laparotomy was also assessed.
EVIDENCE ACQUISITION: Two databases were searched: Medline and Web of Science. The search was conducted through October 2019. The titles and abstracts of the retrieved articles were independently reviewed. All studies reporting on the ACS incidence after r-EVAR were initially included. From each study, eligibility was determined and descriptive, methodological, and outcome data was extracted. The incidence was calculated with summary proportion. Odds ratio was used to compare the mortality rate. Meta-analysis was performed with fixed effect model when calculating the ACS incidence in r-EVAR patients and when assessing the impacts of ACS and DL in the mortality rate.
EVIDENCE SYNTHESIS: A total of 46 studies were included, with a cumulative cohort of 3064 patients. Two hundred and fifty-two (8.2%) patients developed ACS. The ACS pooled incidence was 9% with a 95% confidence interval of [0.08; 0.11]. Among the 46 included studies, 19 studies reported data on the mortality rate, corresponding to 1825 of the 3064 patients. Of these, 169 (9.3%) had developed ACS and 94 (55.6%) of them died by multi organ failure. Among the 1656 patients without ACS, 328 died (19.8%). The mortality odds ratio meta-analysis was 6.25 with a 95% confidence interval of [4.44, 8.80]. Decompressive laparotomy was performed in 41 patients, decreasing mortality in 47%.
CONCLUSIONS: ACS affects approximately 9% of patients submitted to r-EVAR, and significantly increases peri-operative mortality. Close post-operative surveillance to clinical signs of ACS is vital in these patients.

KEY WORDS: Aortic aneurysmn, abdominal; Aneurysm, ruptured; Endovascular procedures; Intra-abdominal hypertension

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