Acute kidney injury in patients undergoing endovascular or open repair of juxtarenal or pararenal aortic aneurysms.

BACKGROUND: The aim of this cohort study was to report the proportion of patients who develop periprocedural acute kidney injury (AKI) after endovascular repair (ER) and open surgery (OS) in patients with juxta/pararenal abdominal aortic aneurysm and to assess potential risk factors for AKI. The study also aimed to report the short- and long-term outcomes of patients with and without AKI. METHODS: This was a multicenter cohort study of five European academic high-volume centers (>50 OS or 50 ER infrarenal AAA repairs, plus >15 complex AAA repairs per year). All consecutively treated patients were extracted from a prospective vascular surgical registry and the data were scrutinized retrospectively. The primary end point for this study was the development of AKI. AKI was diagnosed when there is a two-fold increase of serum creatinine or decrease of glomerular filtration rate of >50% within 1 week of AAA repair. Secondary end points included long-term mortality and end-stage renal disease (ESRD). RESULTS: AKI occurred in 16.6% of patients in the ER group vs 30.3% in the OS group (P < .001). The 30-day mortality rate was higher among patients with AKI in both ER (15.4% vs 3.1%; P = .006) and OS (13.2% vs 5.3%; P = .001) groups. Age, chronic kidney disease, presence of significant thrombus burden in the pararenal region, >1000 mL blood loss in ER group were associated with development of AKI. Age, diabetes mellitus, chronic kidney disease, presence of significant thrombus burden in the pararenal region, and a proximal clamping time of >30 minutes in the OS group were associated with the development of AKI, whereas renal perfusion during clamping was the protective factor against AKI development. After a median follow-up of 91 months, AKI was associated with higher mortality rates in both the ER group (58.9% vs 29.7%; P < .001) and the OS group (61.5% vs 27.3%; P < .001). After the same follow-up period, AKI was associated with a higher incidence of ESRD in both the ER group (12.8% vs 3.6%; P = .009) and the OS group (9.9% vs 2.9%; P < .001). CONCLUSIONS: The current study identified important pre and postoperative factors associated with AKI after juxta/pararenal abdominal aortic aneurysm repair. Patients with postoperative AKI had significantly higher short- and long term mortality and higher incidence of ESRD than patients without AKI.

Successful Hybrid Approach Treatment of a Large Persistent Sciatic Artery Aneurysm-A Case Report.

Background and Objectives: Persistent sciatic artery (PSA) is a rare congenital vascular anomaly that is often asymptomatic, but can be associated with aneurysm formation and potential complications, such as thromboembolism or aneurysm rupture in some cases. We present a case of a 75-year-old woman with a symptomatic thrombus-containing aneurysm of the left PSA. Materials and Methods: The treatment of the PSA aneurysm involved a successful hybrid approach, which included open surgical bypass and endovascular embolization. The open surgical bypass was performed from the left common femoral artery to the left above-the-knee popliteal artery using a synthetic graft, while the aneurysm exclusion was achieved through endovascular plug embolization. Results: Control angiography revealed complete exclusion of the PSA aneurysm. At the 1-month follow-up, there were no palpable pulsatile masses in the left gluteal region, and the patient reported no symptoms. Conclusions: Given the high incidence of limb- and life-threatening complications associated with a PSA aneurysm, accurate diagnosis and appropriate treatment are crucial. In this case, a combination of open surgical and endovascular techniques resulted in a favorable outcome for the patient, highlighting the effectiveness of the hybrid approach in managing PSA aneurysms. Further studies are warranted to explore and refine treatment strategies for these complex vascular anomalies.

International Union of Angiology consensus document on vascular compression syndromes.

Vascular compression syndromes (VCS) are rare diseases, but they may cause significant symptoms interfering with the quality of life (QoL) of patients who are often in their younger age. Given their infrequent occurrence, multiform clinical and anatomical presentation, and absence of dedicated guidelines from scientific societies, further knowledge of these conditions is required to investigate and treat them using modern imaging and surgical (open or endovascular) techniques. This consensus document will focus on known VCS, affecting the arterial and venous system. The position paper, written by members of International Union of Angiology (IUA) Youth Committee and senior experts, will show an overview of pathophysiology, diagnostic, and therapeutical approaches for patients with VCS. Furthermore, this document will provide also unresolved issues that require more research that need to be addressed in the future.

The influence of gender on 30-day adverse clinical outcomes in patients undergoing carotid surgery.

BACKGROUND: We aimed to further evaluate sex differences of perioperative and 30-day complications after carotid surgery in patients with both asymptomatic and symptomatic carotid artery stenosis. METHODS: This was a single-center prospective cohort study including 2013 consecutive patients, who were treated surgically due to extracranial carotid artery stenosis and prospectively followed. Patients who underwent carotid artery stenting and who were treated conservatively were excluded. The primary endpoints for this study were hospital stroke/transitory ischemic attack (TIA) and overall survival rates. Secondary outcomes included all other hospital adverse events, 30-day stroke/TIA, and 30-day mortality rates. RESULTS: Hospital mortality was higher in female patients with symptomatic carotid stenosis (3% vs. 0.5%, P=0.018). Bleeding requiring re-intervention occurred more often in female patients with both asymptomatic (1.5% vs. 0.4%, P=0.045) and symptomatic carotid stenosis (2.4% vs. 0.2%, P=0.022). 30-day stroke/TIA and mortality rates were higher in female patients with both asymptomatic (stroke/TIA 4.4% vs. 2.5%, P=0.041; mortality 3.3% vs. 1.6%, P=0.046) and symptomatic carotid stenosis (stroke/TIA 8.3% vs. 4.2%, P=0.040; mortality 4.1% vs. 0.7%, P=0.006). After adjusting for all confounding factors, female gender remained an important predicting factor for 30-day stroke/TIA in asymptomatic (OR=1.4, 95%CI 1.0-4.7, P=0.041) and symptomatic patients (OR=1.7, 95%CI 1.1-5.3, P=0.040), as well as for 30-day all-cause mortality in patients with asymptomatic (OR=1.5, 95%CI 1.1-4.1, P=0.030) and symptomatic carotid artery disease (OR=1.2, 95%CI 1.0-5.2, P=0.048). CONCLUSIONS: Female gender is important predicting factor for stroke/TIA and all-cause mortality, both perioperative and during the first 30 days after carotid surgery.

Short Term and Long Term Clinical Outcomes of Endovascular versus Open Repair for Juxtarenal and Pararenal Abdominal Aortic Aneurysms Using Propensity Score Matching: Results from Juxta- and pararenal aortic Aneurysm Multicentre European Study (JAMES).

OBJECTIVE: The aim of this study was to compare the short and long term clinical outcomes of endovascular (EVAR) vs. open surgical repair (OSR) of juxtarenal (JAAAs) and pararenal abdominal aortic aneurysms (PAAAs) in five high volume European academic centres. METHODS: This was a retrospective multicentre cohort study of five high volume European academic centres (> 50 open or 50 endovascular abdominal aortic aneurysm repairs annually) including 834 consecutive patients who were operated on and prospectively followed. Using propensity score matching (PSM) each patient who underwent OSR was matched with one patient who underwent EVAR in a 1:1 ratio (145 patients per group). The primary endpoint was long term all cause mortality, while the secondary endpoint was freedom from aortic related re-intervention. RESULTS: After a follow up of 87 months, no difference in overall survival between the two groups was observed (38.6% for EVAR vs. 42.1% for OSR; p = .88). Patients undergoing EVAR underwent aortic related re-interventions more frequently (24.1% vs. 6.9%; p < .001). Acute kidney injury (AKI) occurred more frequently in patients in the OSR group (40.7% vs. 24.8%; p = .006). However, most patients who suffered from AKI recovered without further progression to renal failure. In hospital (3.4% for EVAR vs. 4.1% for OSR; p = 1.0) and 30 day (4.1% for EVAR vs. 5.5% for OSR; p = .80) mortality rates did not differ between groups. CONCLUSION: Both open and endovascular treatment can be performed in high volume aortic centres with low short term mortality and morbidity rates, and good long term outcomes. These data provide useful information to help patients choose between the two procedures when both are feasible.

Chimney Versus Fenestrated Endovascular Versus Open Repair for Juxta/Pararenal Abdominal Aortic Aneurysms: Systematic Review and Network Meta-analysis of the Short-term Results.

INTRODUCTION: The aim of this systematic review and network meta-analysis was to compare the short-term results of fenestrated endovascular repair (FEVAR), chimney endovascular repair (ChEVAR), and open surgery (OS) for patients with juxta/pararenal abdominal aortic aneurysms (JAAA/PAAA). MATERIALS AND METHODS: MEDLINE, SCOPUS, and Web of Science were searched from inception to 1 July 2022. Any comparative studies investigating the results of two or three treatment strategies (ChEVAR, FEVAR, or OS) on clinical outcomes for patients with JAAA/PAAA were included. Analysed outcomes were 30-day mortality, acute kidney injury (AKI), major adverse cardiovascular events (MACE), and bowel ischaemia (BI). RESULTS: A total of 22 studies with 8853 patients were included in the analysis. FEVAR (OR = 0.58, 95%CrI 0.36-0.82) and ChEVAR (OR = 0.56, 95%CrI 0.28-1.02) were associated with lower 30-day mortality than OS. FEVAR (OR = 0.54, 95%CrI 0.33-0.85) was associated with lower risk of AKI than OS. FEVAR (OR = 0.43, 95%CrI 0.20-0.89) and ChEVAR (OR = 0.34, 95%CrI 0.10-0.93) compared to OS were associated with lower rates of BI. FEVAR (OR = 0.67, 95%CrI 0.49-0.90) and ChEVAR (OR = 0.61, 95%CrI 0.35-1.02) were associated with lower 30-day MACE risk than OS. FEVAR was associated with a higher rate of SCI compared to OS (OR = 4.90, 95%CrI 1.55-19.17). CONCLUSION: We found a clear benefit for FEVAR and ChEVAR versus OS in terms of reduced 30-day mortality, BI, and MACE, as well as AKI for FEVAR. This suggests that higher-risk patients might benefit from endovascular treatment of JAAA/PAAA; however, should be applied in clinical practice with caution, since long-term outcomes were outside of the scope of this review.

Recurrent deep venous thrombosis of lower extremities as a result of compression of large horseshoe kidney cysts in double inferior vena cava - Successfully treatment with sclerotherapy.

BACKGROUND: Horseshoe kidney is a well-known congenital anomaly and the most common anomaly of the upper urinary tract. This condition is rarely associated with anomalous inferior vena cava (IVC). Polycystic horseshoe kidney is a very rare occurrence and however IVC anomalies common with polycistic disease are an increasingly recognized risk factor for iliofemoral deep venous thrombosis. METHOD: We present a case of 75-year-old patient with recurrent deep vein thrombosis (DVT) of right leg as a result of compression of large horseshoe kidney cysts in double inferior vena cava. RESULTS: Large renal cyst were successful treated percutaneously punctured for the relief of compression and received injection of acidic solutions of 95% ethanol under ultrasound guidance for prevention against re-accumulation of cyst fluid. CONCLUSION: Percutaneous aspiration with ultrasound guidance with injection of sclerosing solutions as a relatively simple procedure and can be the method of choice for treatment of renal cysts. Also, any recurrent deep vein thrombosis on lower extremity requires additional evaluation in the form of an ultrasound or multidetector computed tomography examination of the abdomen.

Chimney vs. Fenestrated Endovascular vs. Open Repair for Juxta/Pararenal Abdominal Aortic Aneurysms: Systematic Review and Network Meta-Analysis of the Medium-Term Results.

Introduction: This systematic review with network meta-analysis aimed at comparing the medium-term results of open surgery (OS), fenestrated endovascular repair (FEVAR), and chimney endovascular repair (ChEVAR) in patients with juxta/pararenal abdominal aortic aneurysms (JAAAs/PAAAs). Materials and methods: MEDLINE, SCOPUS, and Web of Science were searched from inception date to 1st July 2022. Any studies comparing the results of two or three treatment strategies (ChEVAR, FEVAR, or OS) on medium-term outcomes in patients with JAAAs/PAAAs were included. Primary outcomes were all-cause mortality, aortic-related reintervention, and aortic-related mortality, while secondary outcomes were visceral stent/bypass occlusion/occlusion, major adverse cardiovascular events (MACEs), new onset renal replacement therapy (RRT), total endoleaks, and type I/III endoleak. Results: FEVAR (OR = 1.53, 95%CrI 1.03-2.11) was associated with higher medium-term all-cause mortality than OS. Sensitivity analysis including only studies that analysed JAAA showed that FEVAR (OR = 1.65, 95%CrI 1.08-2.33) persisted to be associated with higher medium-term mortality than OS. Both FEVAR (OR = 8.32, 95%CrI 3.80-27.16) and ChEVAR (OR = 5.95, 95%CrI 2.23-20.18) were associated with a higher aortic-related reintervention rate than OS. No difference between different treatment options was found in terms of aortic-related mortality. FEVAR (OR = 13.13, 95%CrI 2.70-105.2) and ChEVAR (OR = 16.82, 95%CrI 2.79-176.7) were associated with a higher rate of medium-term visceral branch occlusion/stenosis compared to OS; however, there was no difference found between FEVAR and ChEVAR. Conclusions: An advantage of OS compared to FEVAR and ChEVAR after mid-term follow-up aortic-related intervention and vessel branch/bypass stenosis/occlusion was found. This suggests that younger, low-surgical-risk patients might benefit from open surgery of JAAA/PAAA as a first approach.

International Union of Angiology Position Statement on no-option chronic limb threatening ischemia.

This position paper, written by members of International Union of Angiology (IUA) Youth Committee and senior experts, shows an overview of therapeutical approaches for patients with chronic limb-threatening ischemia (CLTI) and absence of 'standard' solutions for revascularization. The aim was to demonstrate the accurate management of the 'no-option' CLTI patient including the wound treatment and the rehabilitation, considering always the goal of the increase of quality of life of the patients.

Arterial thoracic outlet syndrome: a 30-year experience in a high-volume referral center.

BACKGROUND: The purpose of this study was to assess the clinical presentation and contemporary management of arterial thoracic outlet syndrome (TOS) in high-volume referral center. METHODS: We conducted a retrospective review of a prospectively maintained database of patients with TOS of any etiology between January 1st 1990 and 2021. Supra-, or combined supra-/infraclavicular approaches have been used for decompression/vascular reconstructions. The group was divided into two equal time periods: period 1 (1990-2006, N.=27) and period 2 (2006-2021, N.=36). RESULTS: Sixty-three consecutive patients underwent surgical treatment due to arterial TOS. Period 2 had more patients who were asymptomatic (N.=16, 44.4% vs. N.=0, 0%, P<0.001) and those presenting with critical hand ischemia (N.=12, 33.3% vs. N.=0, 0%, P=0.01), while acute limb ischemia was more common in period 1 (N.=16, 59.2% vs. N.=5, 13.9%, P<0.001). SA compression without lesion was more common in period 2 (N.=16, 44.4% vs. N.=0, 0%, P<0.001), while SA intimal damage with mural thrombus formation was more common in the period 1 (N.=12, 44.4% vs. N.=1, 2.7%, P<0.001). Decompression as an isolated procedure was performed in 25.4% (N.=16) of all asymptomatic patients, while combined decompressive and vascular procedure in 71.4% (N.=45) of patients. The most common postoperative complication was pneumothorax (N.=7, 11.1%). CONCLUSIONS: The supraclavicular approach with its modifications provides adequate decompression and allows also repair or reconstruction of the SA, as well as complete additional revascularization of the upper extremity without the need for further patient repositioning. While treatment methods and early outcomes have not changed significantly over time, there has been a trend towards different clinical and SA pathomorphological presentation.

Correlation Between Proteolytic Activity and Abdominal Aortic Aneurysm Wall Morphology with Intraluminal Thrombus Volume.

BACKGROUND: The aim of this study was to examine the influence of intraluminal thrombus (ILT) volume on the level of proteolytic activity and the content of abdominal aortic aneurysm (AAA) wall. METHODS: The research was designed as a cross-sectional study at the Clinic for Vascular and Endovascular Surgery, Clinical Center of Serbia in the period from April 2017 to February 2018. During this period, a total of 155 patients with asymptomatic AAA underwent open surgical treatment and 50 were included in the study based on inclusion and exclusion criteria. Before surgery, patients included in the study were examined by MRI. During the operation, samples of ILT and AAA wall were taken for biochemical analysis. RESULTS: A statistically significant correlation was found between the volume of the ILT and largest AAA diameter (ρ = 0.56; P < 0.001). The correlation of the ILT volume on the anterior wall and the concentration of MMP-9, MMP-2 and NE/ELA in the wall did not find statistical significance. Also, no statistically significant association was found between the volume of ILT and the concentration of ECM proteins (collagen type 3, elastin, proteoglycan) in the corresponding part of the wall. The association of ILT volume with MDA was also of no statistical significance. There was a positive statistical significance found in correlation of volume of ILT and catalase activity in the wall of AAA (ρ = 0.28, P = 0.049). CONCLUSIONS: The volume of ILT in the aneurysmal sac seemed not to affect the level of proteolytic activity and the content of the aneurysm wall. However, a positive correlation was found between the ILT and the catalase activity. The effect of ILT on the aneurysm wall and its role in the progression of aneurysmal disease should be examined in future studies.

Antithrombotic Therapy for Aortic Aneurysms: A Systematic Review and Meta-Analysis.

OBJECTIVES: The role of antithrombotic therapy in the management of aortic and peripheral aneurysms is unclear. This systematic review and meta-analysis aimed to assess the impact of antithrombotics on clinical outcomes for aortic and peripheral aneurysms. METHODS: Medline, Embase, and CENTRAL databases were searched. Randomised controlled trials and observational studies investigating the effect of antithrombotic therapy on clinical outcomes for patients with any aortic or peripheral artery aneurysm were included. RESULTS: Fifty-nine studies (28 with antiplatelet agents, 12 anticoagulants, two intra-operative heparin, and 16 any antithrombotic agent) involving 122 102 patients were included. Abdominal aortic aneurysm (AAA) growth rate was not significantly associated with the use of antiplatelet therapy (SMD -0.36 mm/year; 95% CI -0.75 - 0.02; p = .060; GRADE certainty: very low). Antithrombotics were associated with increased 30 day mortality for patients with AAAs undergoing intervention (OR 2.30; 95% CI 1.51 - 3.51; p < .001; GRADE certainty: low). Following intervention, antiplatelet therapy was associated with reduced long term all cause mortality (HR 0.84; 95% CI 0.76 - 0.92; p < .001; GRADE certainty: moderate), whilst anticoagulants were associated with increased all cause mortality (HR 1.64; 95% CI 1.14 - 2.37; p = .008; GRADE certainty: very low), endoleak within three years (OR 1.99; 95% CI 1.10 - 3.60; p = .020; I2 = 60%; GRADE certainty: very low), and an increased re-intervention rate at one year (OR 3.25; 95% CI 1.82 - 5.82; p < .001; I2 = 35%; GRADE certainty: moderate). Five studies examined antithrombotic therapy for popliteal aneurysms. Meta-analysis was not possible due to heterogeneity. CONCLUSIONS: There was a lack of high quality data examining antithrombotic therapy for patients with aneurysms. Antiplatelet therapy was associated with a reduction in post-intervention all cause mortality for AAA, whilst anticoagulants were associated with an increased risk of all cause mortality, endoleak, and re-intervention. Large, well designed trials are still required to determine the therapeutic benefits of antithrombotic agents in this setting.

International Union of Angiology Position Statement on perioperative drug and hemostasis management in vascular surgery.

This position paper, written by members of International Union of Angiology (IUA) Youth Committee, shows an overview of coagulation system and laboratory tests, analysis of medical therapies (older and newer), medication discontinuation/restart recommendations, bridging therapy recommendations, and an overview of hemostatic agents used in the operating room.

Preoperative Anxiety is Associated With Postoperative Complications in Vascular Surgery: A Cross-Sectional Study.

BACKGROUND: Preoperative anxiety is associated with increased morbidity and/or mortality in surgical patients. This study investigated the incidence, predictors, and association of preoperative anxiety with postoperative complications in vascular surgery. METHODS: Consecutive patients undergoing aortic, carotid, and peripheral artery surgery, under general and regional anesthesia, from February until October 2019 were included in a cross-sectional study. Anesthesiologists assessed preoperative anxiety using a validated Serbian version of the Amsterdam Preoperative Anxiety and Information Scale. Patients were divided into groups with low/high anxiety, both anesthesia- and surgery-related. Statistical analysis included multivariate linear logistic regression and point-biserial correlation. RESULTS: Of 402 patients interviewed, 16 were excluded and one patient refused to participate (response rate 99.7%). Out of 385 patients included (age range 39-86 years), 62.3% had previous surgery. High-level anesthesia- and surgery-related anxieties were present in 31.2 and 43.4% of patients, respectively. Independent predictors of high-level anesthesia-related anxiety were having no children (OR = 0.443, 95% CI: 0.239-0.821, p = 0.01), personal bad experiences with anesthesia (OR = 2.294, 95% CI: 1.043-5.045, p = 0.039), and time since diagnosis for ≥ 4 months (OR = 1.634, 95% CI: 1.023-5.983, p = 0.04). The female sex independently predicted high-level surgery-related preoperative anxiety (OR = 2.387, 95% CI: 1.432-3.979, p = 0.001). High-level anesthesia-related anxiety correlated with postoperative mental disorders (rpb = 0.193, p = 0.001) and pulmonary complications (rpb = 0.104, p = 0.042). Postoperative nausea (rpb = 0.111, p = 0.03) and postoperative mental disorders (rpb = 0.160, p = 0.002) correlated with high-level surgery-related preoperative anxiety. CONCLUSIONS: Since preoperative anxiety affects the postoperative course and almost every third patient experiences anxiety preoperatively, routine screening might be recommended in vascular surgery.

Identification of Risk Factors and Development of Predictive Risk Score Model for Mortality after Open Ruptured Abdominal Aortic Aneurysm Repair.

Background and Objectives: Despite the relatively large number of publications concerning the validation of these models, there is currently no solid evidence that they can be used with absolute precision to predict survival. The goal of this study is to identify preoperative factors that influenced 30-day mortality and to create a predictive model after open ruptured abdominal aortic aneurysm (RAAA) repair. Materials and Methods: This was a retrospective single-center cohort study derived from a prospective collected database, between 1 January 2009 and 2016. Multivariate logistic regression analysis was used to identify all significant predictive factors. Variables that were identified in the multivariate analysis were dichotomized at standard levels, and logistic regression was used for the analysis. To ensure that dichotomized variables were not overly simplistic, the C statistic was evaluated for both dichotomized and continuous models. Results: There were 500 patients with complete medical data included in the analysis during the study period. Of them, 37.6% were older than 74 years, and 83.8% were males. Multivariable logistic regression showed five variables that were predictive of mortality: age > 74 years (OR = 4.01, 95%CI 2.43−6.26), loss of consciousness (OR = 2.21, 95%CI 1.11−4.40), previous myocardial infarction (OR = 2.35, 95%CI 1.19−4.63), development of ventricular arrhythmia (OR = 4.54, 95%CI 1.75−11.78), and DAP < 60 mmHg (OR = 2.32, 95%CI 1.17−4.62). Assigning 1 point for each variable, patients were stratified according to the preoperative RAAA mortality risk score (range 0−5). Patients with 1 point suffered 15.3% mortality and 3 points 68.2% mortality, while all patients with 5 points died. Conclusions: This preoperative RAAA score identified risk factors readily assessed at the bedside and provides an accurate prediction of 30-day mortality after open repair of RAAA.

Influence of perioperative risk factors on the development of transmural colonic ischemia after open repair of ruptured abdominal aortic aneurysm.

BACKGROUND: Development of colonic ischemia (CI) after ruptured abdominal aortic aneurysm (RAAA) treatment is a lethal complication with perioperative mortality reported to be high as 50%. Therefore, the main goal of this study was to identify pre-, intra- and postoperative risk factors associated with CI in patients undergoing open repair (OR) due to RAAA, that might help to select patients who are more prone to develop CI. METHODS: This was a single-center prospective cohort study on patients with RAAA undergoing OR between January 1st 2018 and July 1st 2019, at the Clinic for Vascular and Endovascular Surgery, Clinical Center of Serbia. During this period 89 patients were treated due to RAAA and all were included in the study. The primary endpoint was grade III CI, or transmural necrosis, diagnosed by laparotomy. RESULTS: Out of 89 patients operated due to RAAA, CI was diagnosed in 14 (15.73%). During the operation, patients with CI had a longer duration of hypotension (42.86±35.82 vs. 24.13±23.48, P=0.021) and more common significant hypotension (54.54% vs. 14.66%, P=0.024). In the postoperative course, patients with CI had more common signs of abdominal compartment syndrome (71.42% vs. 25.33%, P=0.001) and higher mortality rate (78.57% vs 29.33%, P=0.001). The univariate regression model showed that one of the most significant factors that were associated with CI were age higher than 75 years, significant hypotension lasting more than one hour, organ lesion, development of abdominal compartment syndrome and higher potassium values on third and fourth quartile. CONCLUSIONS: Grade III colon ischemia (transmural) remains the important cause of mortality after ruptured abdominal aortic aneurysm repair. We identified pre- and intraoperative and postoperative risk factors that could improve the selection of patients for primary open abdomen treatment or early exploratory laparotomy in order to prevent or timely diagnose colon ischemia.