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Background: Selecting intervention strategies for renal artery aneurysms (RAAs) is challenging especially for those located at the vessel bifurcation. The relationship between the aneurysm and renal branches could not always be accurately viewed from traditional computed tomography angiography (CTA) images. Case presentation: This study proposed a new method to investigate the anatomy and affected vessel branches of RAAs using automated software. Two patients with RAAs located at the renal artery bifurcation underwent Cone beam CTA (CBCTA) analysis. We sequentially coupled the "two-click AVA" function of Vessel IQ Xpress (GE Healthcare) with the "vascular tree extraction" function from FlightPlan for Embolization (GE Healthcare) to evaluate the relationship among the main renal artery, vessel branches, and aneurysms. The results showed that one patient had 1 out of 3 branches affected by the aneurysm, whereas the other's branches were all affected. Endovascular repair and open surgery were performed respectively based on the image analysis. Both patients recovered well at follow-up examination. Conclusions: Based on CBCTA analysis, the combination use of the "two-click AVA" function of VesselIQ Xpress and FlightPlan for Embolization software could assist in aneurysm assessment and intervention choices for RAAs. [ABSTRACT FROM AUTHOR]

Objective: Venous aneurysms are rare vascular abnormalities associated with venous thromboembolism. In this study, we presented our experience in managing thrombosed lower extremity venous aneurysms and evaluate the impact of vitamin D deficiency and genetic thrombophilic risk factors on patient management and outcomes. Methods: A single-center retrospective observational analysis was conducted on ten patients with thrombosed lower limb venous aneurysms who underwent surgical procedures at our hospital from July 2014 to February 2023. Collected data included venous duplex ultrasonographic imaging and laboratory tests including genetic thrombophilic risk factors and assessments of vitamin D levels. Results: There were 5 males and 5 females. The mean age was 46.6 ± 12.1 years. The aneurysms were located in the popliteal vein in three patients, the great saphenous vein in six, and the small saphenous vein in one. Venous duplex imaging revealed saccular aneurysms in eight patients and fusiform aneurysms in two, with a mean diameter of 37.2 ± 10.6 mm, ranging from 23 to 52 mm. Laboratory tests indicated vitamin D deficiency in all of the patients, and genetic thrombophilic risk factors were identified in two cases. Surgical interventions consisted of tangential excision with lateral venorrhaphy in three patients and total excision and ligation in seven patients. The postoperative period was favorable for all patients. Conclusions: Surgical treatment of thrombosed venous aneurysms in the lower extremities is essential to prevent complications such as thromboembolism. A comprehensive approach, including knowledge of genetic risk factors and vitamin D levels, may improve patient outcomes. [ABSTRACT FROM AUTHOR]

In accordance with technique advancement and minimal invasiveness surgical approaches, the minipterional has progressively replaced the standard pterional approach for treatment of unruptured middle cerebral artery (MCA) aneurysms. Nowadays, multimodal intraoperative resources including microDoppler and microflow probes, indocyanine green videoangiography, and neurophysiologic monitoring constitute a fundamental prerequisite for increasing the safety of the clipping procedure. Our study investigated and compared in a single-center experience the effect of the evolution of a minimally invasive and multimodal approach in unruptured MCA aneurysm surgery by measuring postoperative complication rate, recovery time, and long-term neuropsychological and functional outcomes. One hundred and thirty-one patients who underwent surgical treatment for unruptured MCA aneurysms at our institution were evaluated retrospectively. Patients' clinical, radiologic, and surgical reports were collected. Cognitive evaluation and quality of life were assessed through validated tests in telephone interviews. Patients who met the inclusion criteria were divided into 2 groups: "PT (pterional)" and "MPT (minipterional)." Ninety-two patients were included in the analysis. A significant reduction of postoperative complication rates and new-onset postoperative seizures was recorded in the MPT group (P value = 0.006). Severe cognitive deficits were lower in the MPT group, although without a clear statistical correlation. Decreased complication rates, faster recovery time, and a trend toward better cognitive and functional performances were documented for the MPT group of patients. In our experience, the minipterional approach with multimodality-assisted microsurgery reduced neurologic complications and recovery time and improved long-term cognitive outcome and quality of life. [ABSTRACT FROM AUTHOR]

Introduction: Indocyanine green (ICG) video angiography (VA) has been widely used in various medical indications, including neurosurgery. The technique enables real -time assessment of vascular structures during surgery. ICG VA is particularly useful in neurosurgery due to its ability to provide high-quality imaging of vascular structures. The aim of the study was to evaluate the practicality, feasibility, and importance of combining ICG VA with endoscopic inspection tool (QEVO) in improving the outcomes of aneurysm clipping surgery. Materials and methods: the study population comprised individuals admitted to the Clinic of Neurosurgery of the Clinical Center University of Sarajevo (CCUS), who underwent microsurgical clipping of the aneurysm. All patients included in the study were surgically treated with the occlusion of brain aneurysm. After the aneurysm was occluded with the clip video-assisted angiography using ICG contrast and endoscopically-assisted inspection of the occluded aneurysm and surrounding blood vessels, QEVO was used for the best clip positioning. Results: this preliminary study included a total of seven patients who fulfilled the inclusion criteria; five of them (71%) were female. After clipping of the anurysm control microscopic inspection revealed that in five patients (71%) the clip was well placed without the anurysm remains while the remains were detected in two patients. ICG video angiography showed that microscopic remains of the aneurysm were detected in one patient, with no angiographic signs of the aneurysm remains. In one patient where the microscopic clip appeared to be well placed, after ICG video angiography, the remains of the aneurysm were detected and the perforator arteries were occluded. Conclusion: the study aimed to evaluate the practicality, feasibility, and importance of combining ICG VA and QEVO in improving the outcomes of aneurysm clipping surgery. The results suggest that this combination can improve visualization of arteries and enhance the outcomes of aneurysm clipping surgery. The study highlights the importance of using both ICG VA and endoscope during microsurgical clipping of aneurysms to achieve better outcomes. [ABSTRACT FROM AUTHOR]

Introduction: Median Arcuate Ligament Syndrome (MALS) is associated with true aneurysms, mainly of both the pancreaticoduodenal artery (PDA) and gastroduodenal artery (GDA). Although rare, their potential for rupture and adverse clinical outcomes warrants analysis. Prior studies suggest high rupture rates even for smaller aneurysms under 2 cm in this setting. We performed a systematic literature review, synthesising the evidence on visceral artery aneurysms related to MAL syndrome, with a focus on descriptive analyses of aneurysm size, presentation, rupture rates, and management. Methods: Literature search was performed using (Medline, EMBASE, Emcare and CINAHL). Inclusion criteria included true aneurysms secondary to MALS with or without rupture. The cases with pseudoaneurysms, concomitant pathologies eg, pancreatitis, conservatively managed aneurysms and articles with non-granular pooled data were excluded. Cases were assessed according to demographics, clinical presentation, aneurysm diameter, aneurysm rupture and management technique. Results: 39 articles describing 72 patients were identified. Aneurysm diameter in symptomatic patients was not significantly different from asymptomatic patients {21.0 and 22.3 mm respectively, P =.84}. Ruptured aneurysms were overall smaller than non-ruptured at presentation {12.3 mm v 30.8 mm respectively, P =.02}. Patients presented with abdominal pain (75.6%), nausea/vomiting (15.6%), hypotension (33.9%), shock (20.0%) and haemodynamic collapse (8.9%). 56.9% of all cases were managed with an endovascular approach, 19.4% were managed with an open surgical approach, and 23.6% were managed hybrid. Conclusion: This review suggests visceral artery aneurysms associated with median arcuate ligament rupture at variable sizes. Despite inability to clearly correlate size and rupture risk, our data supports prompt intervention irrespective of size, given the adverse outcomes. Further research is critically needed to clarify size thresholds or other predictors to guide management. [ABSTRACT FROM AUTHOR]

The aim of this study was to analyse and compare the outcome of open surgery (OS) and endovascular repair (ER) for the treatment of visceral artery aneurysms (VAA). A systematic literature search was carried out. 25 comparative cohort studies with 4447 patients (2469 OS and 1978 ER) were included in the meta-analysis. Mortality (ER vs OS 1.8% vs 2.1%, OR.77, 95% CI [.51; 1.17], P =.23) and technical success rates (97% vs 98%, OR.50, 95% CI [.21; 1.16], P =.11) were comparable between both groups. Lower mortality rates for ER were observed for ruptured aneurysms (4.1% vs 31%, OR.43 95% CI [.13; 1.43], P =.17). Length of stay was shorter (mean difference −4.25 days, 95% CI [−5.52; −2.98], P <.00001) and 1-year reintervention rates were higher in the ER group (9% vs 5%, OR 1.55 95% CI [.58; 4.12], P =.38. The presented evidence suggests that ER should be considered a first-line treatment for VAAs, especially in an emergency setting, due to lower morbidity and comparable mortality and technical success. Follow-up should be offered to these patients due to the higher reintervention rates. Systematic review registration: PROSPERO ID 348699 [ABSTRACT FROM AUTHOR]

Background: The operative field in subclavian vessel surgery is limited by thoracic inlet and outlet structures. Although endovascular therapy for the subclavian artery could be an option, open repair management is occasionally required in cases of large aneurysms, infectious vasculopathy, and trauma. The transmanubrial osteomuscular sparing approach, commonly used in thoracic surgery area to resect superior sulcus tumors, is a simple and safe procedure providing an excellent view of the operative field. Herein, we present three cases that underwent open repair of the subclavian artery using the transmanubrial osteomuscular sparing approach, and we also highlight the utility of the technique along with the procedural details. Case presentation: Case 1: A 54-year-old man presented with a true aneurysm of the proximal portion of the right subclavian artery. The aneurysm measured 50 × 80 mm and compressed the right lung and trachea. We performed an aneurysm resection and a right subclavian artery reconstruction via the transmanubrial osteomuscular sparing approach under cardiopulmonary bypass support. Case 2: A 72-year-old man who presented with an abscess that formed around the left subclavian artery due to an unremoved guidewire during thoracic endovascular aortic repair for an aortic arch aneurysm in another hospital. After the antibiotics administration, debridement and axillary-axillary bypass were performed, and the guidewire was removed via a transmanubrial osteomuscular sparing approach with a use of cardiopulmonary bypass. Case 3: A 60-year-old man presented with misplacement of an indwelling dialysis catheter inserted for acute renal failure and hyperkalemia. The catheter was placed through the right neck, but had penetrated the right internal jugular vein and was misplaced from the right subclavian artery into the proximal aortic arch. Emergently, we removed the catheter using the transmanubrial osteomuscular sparing approach. Conclusions: The transmanubrial osteomuscular sparing approach to the subclavian artery provides an excellent view and a wide surgical field, even in different pathological situations. This is a simple, safe, and highly useful procedure and could be the standard approach for subclavian artery surgeries. [ABSTRACT FROM AUTHOR]

Vascular graft infection (VGI) is one of the most serious complications following arterial reconstructive surgery. VGI has received increasing attention over the past decade, but many questions remain regarding its diagnosis and management. In this review, we describe our approach to VGI through multidisciplinary collaboration and discuss decision making for challenging presentations. This review will concentrate on VGI that impacts both aneurysms and pseudoaneurysms excluding the ascending thoracic aorta. [ABSTRACT FROM AUTHOR]

AbstractObjectives We aimed to prospectively investigate the benefit of using augmented reality (AR) for surgery residents learning aneurysm surgery.Materials and methods Eight residents were included, and divided into an AR group and a control group (4 in each group). Both groups were asked to locate an aneurysm with a blue circle on the same screenshot after their viewing of surgery videos from both AR and non-AR tests. Only the AR group was allowed to inspect and manipulate an AR holographic representation of the aneurysm in AR tests. The actual location of the aneurysm was defined by a yellow circle by an attending physician after each test. Localization deviation was determined by the distance between the blue and yellow circle.Results Localization deviation was lower in the AR group than in the control group in the last 2 tests (AR Test 2: 2.7 ± 1.0 mm vs. 5.8 ± 4.1 mm, p = 0.01, non-AR Test 2: 2.1 ± 0.8 mm vs. 5.9 ± 5.8 mm, p

Background: A venous aneurysm (VA) is a focal dilatation of a nonvariceal vein (diameter increased by at least 1.5 times compared to the adjacent upstream or downstream venous segment), which carries a risk of venous thromboembolism (VTE) when located in the deep veins of the lower limbs but also when it affects the veins above the muscle fascia. Case: We report the case of a 40-year-old woman who presented with a painful and disabling mass-like lesion of the upper third of the right calf. A Doppler ultrasound (DUS) examination revealed a small saphenous vein (SSV) dilated at the saphenopopliteal junction (SPJ) and thrombosed along its entire length. Anticoagulant treatment was initiated but although the thrombosis regressed on DUS, the functional impotence and the persistence of pain prompted a stripping of the SSV. Histology allowed the diagnosis of SSV's primary aneurysm. Discussion: Dilated segments of the saphenous vein are not always varicose veins (VVs). True VAs can develop on veins located above the muscular fascia and, like deep VAs, may trigger VTE. Small saphenous vein aneurysms have seldom been reported, and only a few clinical observations have described the thrombosis of a SSV aneurysm. Any mass in the popliteal fossa or upper part of the calf should be examined by DUS to look for an SSV aneurysm. Excision of the saphenous vein with junctional ligation is advised if thrombosis is present at the time of diagnosis. [ABSTRACT FROM AUTHOR]

Background: Aneurysms of the middle colic artery (MCAA) and its branches are exceedingly rare accounting for <3% of total visceral aneurysms. Very few MCAA cases have been reported in the literature with only three cases accounting for a diameter >4 cm. Method: We describe the successful open repair with ligation of a 4.2 cm asymptomatic MCAA in a female patient through the gastrohepatic ligament taking meticulous caution to avoid injury of the pancreas. The postoperative period was uneventful and the patient was discharged from the hospital on the fifth postoperative day. At 1 month follow-up the postoperative computed tomographic angiography documented complete exclusion of the MCAA and absence of contrast agent in the sac both in the arterial and the venous phase. Conclusion: While the endovascular treatment is the first-line option for visceral aneurysms, the open approach is still reserved for certain cases of hostile anatomy, challenging location and large size. Our case highlights the irreplaceable role of open surgery and underlines the collaboration between surgical specialties. [ABSTRACT FROM AUTHOR]

Background Flow-diverting devices (FDDs), such as the Pipeline Embolization Device, have been gaining traction for treating challenging posterior circulation aneurysms. Few previous studies have focused on using FDDs to treat aneurysms of the basilar quadrifurcation. Methods We retrospectively reviewed the use of FDDs to treat patients with basilar quadrifurcation aneurysms. Patients were assessed for aneurysm type, previous aneurysm treatment, technical success, periprocedural complications, and long-term aneurysm occlusion. Results 34 patients were assessed; aneurysms of the basilar apex (n=23) or superior cerebellar artery (SCA) (n=7), or both (n=1), and posterior cerebral artery (PCA) (n=3). The mean (SD) largest aneurysm dimension was 8.7 (6.1) mm (range 1.9-30.8 mm). 14 aneurysms were previously surgically clipped or endovascularly coiled. All aneurysms had a saccular morphology. Complete or near-complete occlusion was achieved in 30 of 34 patients (88%) at final angiographic follow-up, a mean (SD) of 6.6 (5.4) months (range 0-19 months) postoperatively. No patient experienced postoperative symptomatic occlusions of the SCA or PCA; 4 patients developed asymptomatic posterior communicating artery occlusions; 28 patients (82%) experienced no complications; whereas 3 (9%) experienced major complications and 3 (9%) experienced minor complications; and 1 patient died as a result of subarachnoid hemorrhage. Conclusion Flow diversion may be a safe and effective option to treat basilar quadrifurcation aneurysms. Previously treated basilar quadrifurcation aneurysms with recurrence or residual lesion may benefit from additional treatment with an FDD. Further prospective studies should be directed toward validating these findings. [ABSTRACT FROM AUTHOR]

Several types of soft tissue masses occur in the lower extremities. A mass associated with blood vessels is often difficult to diagnose. A 15-year-old male patient visited the author's hospital with discomfort and edema in his right calf that had persisted for six months. A physical examination showed no palpable mass other than mild edema. Three masses were found during the ultrasound scan along the small saphenous vein. The masses had a cyst-like appearance and were filled with thrombus. In duplex ultrasound, vascular reflux was represented inside the masses. During surgery, it was suspected that vascular deformation occurred in the small saphenous vein, and simple ligation and resection treatments were performed. The patient was finally diagnosed with venous aneurysms accompanied by thrombosis based on the histology tests. The symptoms disappeared after surgery, and there were no recurrences or unusual findings at the follow-up one year later. Venous aneurysms occurring in the superficial veins of the lower extremities are rarely reported, but treatment and diagnosis are important. This paper reports a case of an aneurysm on the small saphenous vein. [ABSTRACT FROM AUTHOR]

Congenitally corrected transposition of the great arteries (CCTGA) is a rare congenital heart disease which may present sudden cardiac death presumably due to malignant ventricular tachycardia (VT). In patients with congenital heart disease, knowledge of arrhythmogenic substrate is crucial for planning an ablation procedure. We present the first description of the arrhythmogenic endocardial substrate of a non‐iatrogenic scar‐related VT in a patient with CCTGA. [ABSTRACT FROM AUTHOR]

Background WEB Shape Modification (WSM) over time is frequent after aneurysm treatment. In this study, we explored the relationship between histopathological changes and angiographic evolution over time in experimental aneurysms in rabbits treated with the Woven EndoBridge (WEB) procedure. Methods Quantitative WSM was assessed using flat-panel computed tomography (FPCT) during follow-up by calculating height and width ratio (HR, WR), defined as the ratio between either measurement at an index time point and the measurement immediately after WEB implantation. The index time point varied from 1 day to 6 months. HR and WR were evaluated with angiographic and histopathological assessments of aneurysm healing. Results Final HR of devices varied from 0.30 to 1.02 and final WR varied from 0.62 to 1.59. Altogether, at least 5% of HR and WR variations were observed in 37/40 (92.5%) and 28/40 (70%) WEB devices, respectively, at the time of final assessment. There was no significant correlation between complete or incomplete occlusion groups and HR or WR (p=0.15 and p=0.43). Histopathological analysis revealed a significant association between WR and aneurysm healing and fibrosis 1 month following aneurysm treatment (both p<0.05). Conclusion Using longitudinal FPCT assessment, we observed that WSM affects both the height and width of the WEB device. No significant association was found between WSM and aneurysm occlusion status. Although presumably a multifactorial phenomenon, the histopathological analysis highlighted a significant association between width variations, aneurysm healing and fibrosis in the first month following aneurysm treatment. [ABSTRACT FROM AUTHOR]

Purpose: To highlight median arcuate ligament syndrome as a potential cause for celiac artery stenosis and pancreaticoduodenal artery aneurysm, and describe treatment options in this setting. Case Report: A 63-year-old male presented with a pancreaticoduodenal artery aneurysm and concomitant celiac artery stenosis that was treated with celiac artery stenting and aneurysm coiling. He subsequently developed stent fracture and celiac artery occlusion secondary to previously unrecognized median arcuate ligament syndrome causing reperfusion of the aneurysm. This was treated with open median arcuate ligament release and aorta to common hepatic artery bypass with good clinical result and stable 20-month surveillance imaging. Conclusion: It is critical to recognize median arcuate ligament syndrome as a cause of celiac artery stenosis in the setting of pancreaticoduodenal artery aneurysm given the high risk of failure of endovascular stenting. Open aorto-hepatic artery bypass and endovascular aneurysm coiling should be the preferred approach in these patients. [ABSTRACT FROM AUTHOR]

An otherwise healthy 9-month-old infant was treated for a true aneurysm of the proximal brachial artery. The swelling was first noted at seven months of age. An ultrasound scan showed a 2 cm × 2 cm aneurysm of the left brachial artery at the level of the mid-upper arm. Whole-body magnetic resonance angiography (MRA) confirmed this was a true aneurysm of the brachial artery; there was good distal runoff and no other aneurysms elsewhere. Vasculitis screen was negative. Surgical excision of the aneurysm and reconstruction of the brachial artery was performed with a reversed cephalic vein graft. The patient made an uneventful recovery and was discharged home. We present an overview of the workup report and emphasise that a multi-disciplinary team approach is imperative for assessing and managing this rare condition. [ABSTRACT FROM AUTHOR]

Flagging the presence of metal devices before a head MRI scan is essential to allow appropriate safety checks. There is an unmet need for an automated system which can flag aneurysm clips prior to MRI appointments. We assess the accuracy with which a machine learning model can classify the presence or absence of an aneurysm clip on CT images. A total of 280 CT head scans were collected, 140 with aneurysm clips visible and 140 without. The data were used to retrain a pre-trained image classification neural network to classify CT localizer images. Models were developed using fivefold cross-validation and then tested on a holdout test set. A mean sensitivity of 100% and a mean accuracy of 82% were achieved. Predictions were explained using SHapley Additive exPlanations (SHAP), which highlighted that appropriate regions of interest were informing the models. Models were also trained from scratch to classify three-dimensional CT head scans. These did not exceed the sensitivity of the localizer models. This work illustrates an application of computer vision image classification to enhance current processes and improve patient safety. [ABSTRACT FROM AUTHOR]

Background: The pterional or frontosphenotemporal craniotomy has stood the test of time and continues to be a commonly used method of managing a variety of neurosurgical pathology. Already described in the beginning of the twentieth century and perfected by Yasargil in the 1970s, it has seen many modifications. These modifications have been a normal evolution for most neurosurgeons, tailoring the craniotomy to the patients' specific anatomy and pathology. Nonetheless, an abundance of variations have appeared in the literature. Methods: A search strategy was devised according to the 2020 Preferred Reporting Items of Systematic Reviews and Meta-Analyses (PRISMA) statement. To identify articles investigating the variations in the pterional approach, the following search terms were applied: (pterional OR minipterional OR supraorbital) AND (approach OR craniotomy OR technique). Results: In total, 3552 articles were screened with 74 articles being read in full with 47 articles being included for review. Each article was examined according the name of the technique, temporalis dissection technique, craniotomy technique and approach. Conclusion: This systematic review gives an overview of the different techniques and modifications to the pterional craniotomy since it was initially described. We advocate for the use of a more standardised nomenclature that focuses on the target zone to simplify the management approach to supratentorial aneurysms. [ABSTRACT FROM AUTHOR]

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Background: Visualization of cerebral vessels, their branches and the surrounding structures are essential during cerebrovascular surgery. Indocyanine green dye-based video angiography is a commonly used technique in cerebrovascular surgery. This paper aims to analyze the real-time imaging of ICG-AG, DIVA, and the use of ICG-VA with Flow 800 to compare their usefulness in surgery. Methods: Intraoperative real-time identification of vascular and surrounding structures in twenty nine anterior circulation aneurysms and three posterior circulation aneurysm clipping, one STA-MCA bypass, and two carotid endarterectomies were performed in patients using ICG-VA alone, DIVA, ICG-VA with Flow 800 to analyze and compare each of these methods in details. Results: ICG-VA and DIVA couldn't visualize perforators in twenty-three cases of cerebral aneurysms clipping when used alone. Compared to that by adding Flow 800 perforators were easily visualized. In three cases, occlusion of perforators after clip application was visualized by DIVA and solved by repositioning surgical clips. In one STA-MCA bypass surgery, adequate blood flow to cortical branches of MCA (M4) from STA branches was assessed with ICG-VA, DIVA, and the use of ICG-VA with Flow 800 color mapping. ICG-VA, DIVA, and Flow 800 observed the lack of blood flow and fluttering atherosclerotic plaques in carotid endarterectomy. In one case of basilar tip aneurysm, we used ICG-VA with Flow 800; the intensity diagram drawn after determining regions of interest showed that there was no flow within the aneurysm sac after clipping. Conclusion: In real-time surgery, a multimodal approach using ICG-VA, DIVA, and ICG-VA with Flow 800 colour mapping can serve as useful tools for better visualization of vascular and surrounding structures. The benefits of flow 800 color mapping, such as determining regions of interest, intensity diagrams, and color-coded images, outweigh the advantages over the ICG-VA and DIVA in the visualization of critical vascular anatomy in humans during surgical procedures. [ABSTRACT FROM AUTHOR]

We present a case of ultra-early symptomatic fish-mouth type stenosis (FMTS) of a Surpass Evolve flow diverter stent (SE-FDS) occurring within 24 h after deployment for the treatment of multiple unruptured right siphon aneurysms in a 44-year-old patient. The patient developed left hemiplegia and hemineglect, and was treated with mechanical thrombectomy (MT) and Tirofiban infusion. This is the first report of an ultra-early FMTS with a SE-FDS and its mechanism is discussed in the light of available data in the literature. [ABSTRACT FROM AUTHOR]

Introduction One of the major complications of intracranial aneurysm surgery is vasospasm. Papaverine is an effective vasodilator that can be instilled directly onto the vessels in the operative field with the aim of preventing intraoperative and postoperative vasospasm. Several case reports of hemodynamic instability in general and of hypotension, in particular, were reported after the use of topical papaverine during aneurysm clipping surgery.

Surgical repair of a common iliac artery aneurysm (CIA) after previous open aortic reconstruction is associated with significant morbidity and mortality. Endovascular repair is considered less invasive than surgery. However, if preservation of the internal iliac artery (IIA) is required, the applicability of endovascular techniques may represent a challenge and a limitation to the use of standard aortic endografts or iliac branch devices. In these cases, the off-label use of endovascular devices may be an effective alternative. Herein, we report a successful hybrid approach to treat CIA using a reversed iliac limb endograft coupled with a double-barrel technique with femoro-femoral crossover bypass in a patient who had previously undergone open aortic reconstruction. [ABSTRACT FROM AUTHOR]

Background: Superficial Venous Aneurysm (SVA) are rare venous diseases that may be asymptomatic or symptomatic. The major etiology of SVA is still unknown. The study presents 17 cases with no underlying disease or risk factors that presented SVA in uncommon and different veins of the body. Methods: 17 patients with SVA were evaluated and treated in our hospital for 11 years. Clinical presentation, treatment, and complications were evaluated. Results: 6 of the aneurysms were located in the great saphenous vein, 2 in the small saphenous vein, 6 in the external jugular vein, 1 in the dorsal foot vein, and also 2 in the forearm veins. Ten patients suffered from acute tenderness, pain, and edema of the limb and others presented with soft tissue mass. All 17 patients underwent surgical excisional therapy. No pulmonary emboli were reported in the patients. Conclusion: The etiology of SVA is unknown. It may cause occlusion in rare superficial veins in patients with no history of the hyper-coagulopathy state or any major risk factor. [ABSTRACT FROM AUTHOR]

A giant coronary artery aneurysm (GCAA) concurrent with coronary artery fistula is a rare condition, and it becomes even more unusual when combined with a single coronary artery (SCA) anomaly. Here, we report such an extremely rare case, who is a 35‐year‐old woman presenting with severe chest distress. A GCAA with fistula to the right ventricle was noted, occurring in a single coronary artery, diagnosed by multimodality cardiovascular imaging techniques. Both GCAA and coronary artery fistula can cause severe cardiac complications, which jeopardize life. While an SCA is mostly asymptomatic, it may also lead to sudden cardiac death as well. Therefore, surgical intervention was recommended. We chose a novel thrombus‐inducing strategy to eliminate the GCAA and repair the fistula. Symptoms were relieved after the surgery, and the patient remained asymptomatic over 8 months of follow‐up. [ABSTRACT FROM AUTHOR]

Objective: Spontaneous subarachnoid hemorrhage (sSAH) is a significant disease requiring urgent intervention. It may develop because of the rupturing of intracranial aneurysms and has high mortality and morbidity rates. This study was conducted at a hospital that serves as a reference center in the region in which it is located with the aim of evaluating patient characteristics, patient preferences, and complication management among patients with aneurysmal subarachnoid hemorrhage (aSAH) and presenting the results of these intracranial aneurysm clipping surgeries. Methods: Cases of 261 patients who were admitted with a diagnosis of sSAH were retrospectively examined. Subsequently, 107 patients with aSAH who were treated with 117 microsurgical aneurysm clippings were included in the study. The effects of patient demographics, Glasgow coma scale (GCS) scores, clinical World Federation of Neurological Surgeons scale and Hunt/Hess scale scores, and radiological modified Fisher scale gradings on modified Rankin scale (mRS) scores were examined. The management of complications such as rebleeding, cerebral vasospasm (CV), and delayed cerebral ischemia and surgical results were compared according to clinical and radiological data. Results: Of the patients, 52 were female (48%) and 55 were male (52%). Their average age was 50.4 years (range: 29-78 years), and the mean follow-up period was 13.8 months or 414 days (range: 30-892 days). The most common complaint of the patients at admission was headache (75.8%). Approximately 72.9% of patients had GCS scores of 14 or 15 at first admission. Twenty-eight (26.1%) patients had multiple aneurysms. Thirteen (12%) patients required a permanent cerebrospinal fluid drainage system. Rebleeding occurred in 7 (6.5%) patients before treatment. Thirty-six (33.6%) patients had a clinical CV. Delayed cerebral ischemia occurred in 25 (23.3%) patients. At the end of the mean follow-up period of 13.8 months, 82.3% of the patients had slight or no disabilities (mRS: 0-2), whereas 11.2% had severe disabilities (mRS: 3-5). Seven (6.5%) patients died, thus having an mRS score of 6 (exitus). Five (4.6%) patients had residual aneurysms. Six (5.6%) patients had parent or perforating artery occlusion. Conclusion: Poor prognosis at admission, rebleeding, and CV complications remain the most important causes of mortality and morbidity related to aSAH. Evaluations of the diagnoses, treatments, and complication management of patients with sSAH and the multidisciplinary approaches of experienced endovascular and neurosurgical teams are important for better understanding and management of this disease. [ABSTRACT FROM AUTHOR]

Objective: Image evaluation after stent-assisted coil embolization (SAC) for a cerebral aneurysm is difficult with conventional MRA or CTA because of metal artifacts. Pointwise encoding time reduction with radial acquisition (PETRA)- MRA is a noninvasive imaging examination that can reduce metal artifacts. This study aimed to examine whether PETRAMRA can be used as a follow-up imaging after SAC. Methods: Twelve patients (eight women and four men; mean age, 66.9 ± 13.2 years) underwent SAC for unruptured aneurysms and were retrospectively evaluated using time-of-flight (TOF)- and PETRA-MRA data from the same follow-up session. Two neurosurgeons independently compared the aneurysm occlusion status and flow visualization score in the stented parent artery (4-point scale, where 4 points represented excellent visualization) between TOF- and PETRA-MRA images. If DSA was performed within 3 months before or after PETRA-MRA, the aneurysm assessment was compared between MRA and DSA. The interobserver agreement for each MRA was evaluated. Results: Nine of the 12 patients underwent DSA within 3 months before and after TOF- and PETRA-MRA. The aneurysm occlusion status on DSA was more consistent with PETRA-MRA (eight of nine cases) than with TOF-MRA (one of nine cases; P = 0.023). The median visualization score of the stented parent artery was significantly higher for PETRA-MRA (4 [interquartile range {IQR} 3-4]) than for TOF-MRA (1 [IQR 1-1], P = 0.003). The interobserver agreement for evaluation of the aneurysm occlusion status and visualization score of the parent artery for PETRA-MRA were excellent (? = 0.98 and 0.93, respectively). In one case, PETRA-MRA was able to detect aneurysm recurrence, leading to subsequent retreatment. Conclusion: PETRA-MRA is a noninvasive examination that can be used to evaluate the occlusion status of aneurysms after SAC and visualize the stented parent artery. PETRA-MRA is useful for repeated follow-up examinations after SAC. [ABSTRACT FROM AUTHOR]

Background The Contour Neurovascular System is a novel device designed to treat intracranial aneurysms by intrasaccular flow disruption. We report our experience and mid-term follow-up in a series of patients treated with the Contour. Methods The patients were divided into an intention to treat and a per protocol population, the latter defined by the successful implantation of the Contour device. The intention to treat population included 53 patients (30 women, mean age 56 years) with 60 unruptured intracranial aneurysms (53 in the anterior circulation and seven in the posterior circulation). There was clinical and angiographic follow-up immediate postoperatively and at 24 hours, 3 months and 1 year using the Raymond--Roy classification and the O'Kelly--Marotta grading scale. Results The Contour was successfully implanted in 54/60 (90%) aneurysms. With regard to the angiographic follow-up, there was adequate occlusion (defined as complete occlusion or presence of a neck remnant) in 31.5% of 54 aneurysms immediately postoperatively, 62.3% (in 53/54 aneurysms) at 24 hours, 81.4% (in 43/54 aneurysms) at 3 months, and 89.3% (in 28/54 aneurysms) at 1 year. Technical complications in 60 aneurysms of the intention to treat population included two (3.3%) inadvertent detachments of the device. Thromboembolic events were observed in four of the 60 aneurysms (6.7%), with no clinical symptoms in three patients and transient morbidity in one (1.7%). No aneurysm bleeding was observed and no patient was retreated during the 1-year follow-up period. There was no permanent morbidity or mortality. Conclusions The Contour device is effective and safe in the treatment of intracranial aneurysms. However, more experience and long-term follow-up are needed. [ABSTRACT FROM AUTHOR]

Background Flow diverters have been widely used in clinical practice for more than a decade. However, most outcome data are limited to 1 year timepoints. This study aims to offer meta-analysis data on long-term (>1 year) safety and effectiveness results for patients with aneurysms treated with flow diverters. Methods PubMed, Web of Science, Embase, and SCOPUS were searched up to February 24, 2022 using the AutoLit platform. We included primary studies assessing the long-term outcomes for flow diverter devices to manage unruptured internal carotid artery aneurysms with a follow-up period of >1 year. The metaanalysis was carried out using Comprehensive Meta-Analysis software (CMA). Results Eleven studies were included in the metaanalysis. The pooled occlusion rates after flow diversion treatment for unruptured intracranial brain aneurysms were 77%, 87.4%, 84.5%, 89.4%, 96% for 1 year, 1-2 years, 2 years, 3 years, and 5 years follow-up, respectively. The in-stent stenosis rate was 4.8% and the retreatment rate for the long-term follow-up period was 5%. No delayed rupture of the aneurysm was reported, and there was one case of delayed ischemic stroke. The sensitivity analysis of the prospective studies showed a complete occlusion rate of 83.5% and 85.2% for 1 and 3 years of follow-up, respectively. Conclusion Flow diverters are safe and effective in short-and long-term follow-up and rarely cause serious delayed side effects. [ABSTRACT FROM AUTHOR]

Background Although flow diversion plays a pivotal role in treating internal carotid artery aneurysms presenting with cranial neuropathy, predictors of symptom improvement have not been established. Objective To investigate improvement of symptoms after flow diversion treatment in patients with internal carotid artery aneurysms causing cranial neuropathy, with sufficient follow-up period. Additionally, to examine factors associated with improvement of symptoms. Methods This retrospective multicenter study examined patients with unruptured internal carotid artery aneurysms presenting with cranial neuropathy who were treated using flow diversion and followed up for at least 12 months. Study outcomes were transient worsening of symptoms and symptom status 12 months after treatment. Patient and aneurysm characteristics were statistically analyzed. Results Seventy-seven patients were included. Data needed for outcome analysis were available for 66 patients. At the 1-, 3-, 6-, 12-month, and last follow-ups, the proportion of patients with resolved or improved symptoms was 26% (20/77), 51% (39/77), 74% (57/77), 83% (64/77), and 79%(62/77), respectively. Symptom onset-to-treatment time <6 months (OR=24.2; 95% CI 3.09 to 188.84; p=0.002) and aneurysmal regression (OR=23.1; 95% CI 1.97 to 271.75; p=0.012) were significantly associated with symptom improvement. Transient symptom worsening and worse symptoms at 12 months occurred in 19/77 (25%) and 2/77 (3%) patients, respectively. Conclusions The rate of cranial neuropathy symptom improvement after flow diversion increased over the first 12 months after treatment, but not thereafter. Treatment within 6 months of symptom onset and aneurysmal regression were predictors of symptom improvement. [ABSTRACT FROM AUTHOR]

Subclavian artery aneurysms are rare peripheral aneurysms. A giant subclavian artery aneurysm can lead to compression of the trachea or brachial plexus, erosion of the lung causing hemoptysis, hoarseness of voice, dysphagia, Horner's syndrome, and upper extremity deep vein thrombosis. Compression of the trachea and inability to ventilate the patient can be a real challenge for the anesthesiologist and must be anticipated. Computed tomographic angiography is a useful imaging modality for its diagnosis and to rule out additional aneurysms in the body. [ABSTRACT FROM AUTHOR]

Purpose: We aimed to assess the safety and efficacy of the double microcatheter technique in the treatment of saccular splenic artery aneurysms. Methods: From November 2013 to October 2020, 56 patients with saccular splenic artery aneurysms underwent endovascular treatment with the double microcatheter technique at our institution. Technical success was defined as embolization of the aneurysmal cavity with no obstruction of the parent artery. Clinical success was defined as no deaths due to splenic artery aneurysms, and no reintervention, recrudescence or organ dysfunction at 1, 6, and 12 months. Results: The technical success rate was 100%. No major complications related to angiography or embolization were observed. Minor complications included fever, pain, and nausea, and 13 patients developed minor complications. At 1 month, the rate of clinical success was 96.4%. At 6 and 12 months, the clinical success rate was 92.9%. There were no aneurysmal recurrences or necessities of reintervention. Conclusions: Coil embolization with the double microcatheter technique is a safe and effective modality for treating saccular splenic artery aneurysms and offers a reasonable choice for patients who want to retain their original hemodynamics. [ABSTRACT FROM AUTHOR]

Background: Superficial vein aneurysms (SVA) are rare vascular pathologies associated with trauma, chronic venous disease, and venous malformation. Method: We retrospectively reviewed cases of SVA treated from 1986 to 2022. Results: Out of 2463 venous procedures, 16 patients were found with 19 GSV and 1 SSV aneurysms, with 88% presenting with a palpable mass. Varicose veins were noted in 94% of patients, 81% had concomitant reflux, 15% had thrombus within the aneurysm sac, and 19% demonstrated multiple aneurysms. All patients underwent ligation and excision. Post-procedure, 55% of patients received anticoagulants, and 85% received compression. Mean follow-up was 19.4 months, with no aneurysm recurrence. We propose a modification to the current SVA classification. Conclusion: The prevalence of multiple aneurysms suggests the need for complete limb imaging in affected patients. Surgical management of SVA was effective in preventing SVA recurrence, while the proposed classification modification will aid in future SVA management. [ABSTRACT FROM AUTHOR]

Introduction: Splenic artery aneurysm is often discovered incidentally. It can be treated with non-surgical management such as angioembolization if appropriately followed up after detection. However, if not adequately treated, aneurysm can have very serious consequences. We report a case of successful treatment of a new traumatic splenic pseudoaneurysm in a patient who missed two true splenic aneurysms during eight years of breast cancer follow-up. Case presentation: A 65-year-old woman visited a regional trauma center complaining of abdominal pain in both legs after a pedestrian traffic accident. The patient had a medical history of regular follow-ups at our hospital after a mastectomy for breast cancer ten years prior. The medical staff found multiple splenic aneurysms without bleeding or rupture. We recognized that previous examinations also showed two true splenic aneurysms. The medical team determined that treatment for the multiple splenic aneurysms and focal splenic injury was the priority, and an-giographic embolization was performed as an emergency. Angiographic images revealed two true splenic aneurysms and one pseudoaneu-rysm. Embolization was thus performed on the two true splenic aneurysms by coiling, and he-mostasis was achieved through embolization of the traumatic splenic pseudoaneurysm. Conclusion: Splenic artery aneurysms are sometimes detected incidentally during examinations for other purposes; thus, medical staff should always carefully examine imaging results. [ABSTRACT FROM AUTHOR]

Cardiovascular disease (CVD) is one of the leading causes of death, with an increasing incidence of coronary heart disease, heart failure, and arrhythmias. The significance of surgical interventions across cardiovascular conditions requires modern imaging modalities that better visualize the anatomy of the heart across different patient demographics, aiding in preprocedural planning and intraoperative procedures. We conducted a literature search in databases such as PubMed/Medline and ScienceDirect and included a comprehensive analysis of findings from articles in English related to three-dimensional (3D) printing in the anatomical visualization, preprocedural surgical planning, and therapeutic use for various cardiovascular conditions. With the incorporation of cardiac imaging techniques, 3D models can recapitulate the coronary vasculature to understand the pathophysiology of atherosclerosis and thromboembolisms, as well as diving into its clinical applications in preoperative surgical planning and assisting in interventional procedures for congenital heart defects, valvular disorders, tachyarrhythmias, aneurysms, and cardiomyopathy. We also identified that the integration of scaffolds and biomaterial could assist in regenerative medicine alongside 3D printing and its applications in the treatment of coronary artery disease and ischemic heart conditions. Our review concludes that the literature surrounding 3D-printed models is promising but requires further investigations on its large-scale translational impact on patient care. [ABSTRACT FROM AUTHOR]

Objective: Vasopressin may be administered to treat vasospasm following aneurysmal subarachnoid hemorrhage (aSAH). The objectives of this study were to describe five cases of suspected vasopressin-induced hyponatremia after aSAH and to review the literature. Design: Single-center, observational case series of intensive care unit (ICU) patients. Settings: Ten-bed neurological ICU at Maine Medical Center in Portland, Maine. Patients: Convenience sample of patients with aSAH treated with a vasopressin for symptomatic, radiologically confirmed vasospasm. Results: A total of five patients were included in the case series with a median age of 57 (51, 65) years and all were women. The median Glasgow coma scale score was 15 (11, 15) on admission, and the Hunt and Hess scale score was 3, (3, 4). All patients were treated with endovascular coiling of their aneurysm. Vasopressin was administered to treat symptomatic, radiographically confirmed vasospasm on median post-bleed day (PBD) 10 (10, 15) at a fixed-dose of.03 units/min. Serum sodium at baseline was 140 (140, 144) mEq/L and decreased to 129 (126, 129) mEq/L within 26 (17, 83) hours of vasopressin initiation for a median change of −16 (−10, −16) mEq/L. Serum sodium returned to baseline within 18 (14, 22) hours of stopping the infusion. Conclusions: Vasopressin use in vasospasm after aSAH may be associated with clinically significant hyponatremia within 24 hours of starting the infusion. Hyponatremia appears to resolve within 24 hours of stopping the infusion. Additional study in a larger sample size is needed to determine if a causal relationship exist. [ABSTRACT FROM AUTHOR]

Background: Popliteal vein aneurysms (PVA) are a rare clinical entity with unknown etiology that pose a significant risk for venous thromboembolic events (VTE). The current literature supports anticoagulation and operative management. There are few case reports of PVA in pregnancy. We present a unique case of a pregnant patient with recurrent pulmonary embolism (PE) in the setting of PVA with intra-aneurysmal thrombosis who ultimately underwent surgical excision. Case presentation: A previously healthy 34-year-old G2P1 at 30 weeks gestation presented to the emergency department with shortness of breath and chest pain. She was diagnosed with PE and subsequently required intensive care unit (ICU) admission and thrombolysis for a massive PE. While on a therapeutic dose of tinzaparin she had recurrence of PE in the post-partum period. She was treated with supratherapeutic tinzaparin and subsequently transitioned to warfarin. She was found to have a PVA and ultimately underwent successful PVA ligation. She remains on anticoagulation for secondary prevention of VTE. Conclusions: PVA are a rare but potentially fatal source of VTE. Patients most commonly present with symptoms of PE. The risk of VTE is elevated in the pro-thrombotic states of pregnancy and the post-partum period due to both physiologic and anatomical changes. The recommended management of PVA with PE is anticoagulation and surgical resection of the aneurysm, however this can be complicated in the setting of pregnancy. We demonstrated that pregnant patients with PVA can be temporized with medical management to avoid surgical intervention during pregnancy, but require close symptom monitoring and serial imaging to reassess the PVA, with high index of suspicion for recurrent VTE. Ultimately, patients with PVA and PE should undergo surgical resection to reduce the risk of recurrence and long-term complications. The ideal duration of post-operative anticoagulation remains unclear, and should likely be decided on based on risks, benefits, values, and shared decision making with the patient and their care provider. [ABSTRACT FROM AUTHOR]

Objective: The aim of this study was to analyze malpractice claims for aortic pathologies and to assess if there has been a change in rate of malpractice lawsuits with evolution of endovascular therapy. Methods: Malpractice lawsuits were individually screened and compiled from the Westlaw database from 2000 to 2017 through use of relevant search terms. Data were collected of allegations, diagnoses, and outcomes of each case and compared. Results: 268 unique cases were included in this study, with aneurysms (54%, n = 145) and dissection (35%, n = 94) making up the majority. There was a defendant verdict in 53% (n = 141), plaintiff verdict in 24% (n = 65), and settlements in 23% (n = 62) of lawsuits. Litigation was higher in the Midwest and Northeast. There was a gradual decline in litigation overall, however endovascular case numbers remained constant. There was negligible difference in the primary allegation underlying the litigation for various aortic pathologies, time to litigation and award between open and endovascular procedures. Conclusion: The proportion of litigation for clinical negligence in endovascular cases amongst all vascular surgical lawsuits is increasing. As novel methods of endovascular therapy emerge, it is imperative that physicians remain vigilant to legal considerations to minimize malpractice risk. [ABSTRACT FROM AUTHOR]

Gastroduodenal artery (GDA) aneurysm rupture is a rare cause of upper gastrointestinal bleeding, which is often associated with a high mortality rate if diagnosis or intervention is delayed. Here, we report a case of a 70-year-old man who presented with acute, severe, diffuse abdominal pain and bloody vomiting for two days. The abdominal computed tomography (CT) scan revealed a moderate hemoperitoneum and enhancing focal area in the epigastric region, indicating the ruptured GDA aneurysm. An urgent laparotomy confirmed the diagnosis, and the ruptured GDA was successfully treated by ligation. Fortunately, the patient had an uneventful postoperative recovery and was discharged without complications. In conclusion, early diagnosis and intervention are crucial in reducing the mortality rate associated with GDA aneurysm rupture. Although endovascular repair is the preferred treatment modality, surgical repair may be necessary in cases of hemodynamic instability, unamenable anatomy, unavailable equipment, or lack of subspecialty experience. Thus, physicians must be vigilant in identifying the symptoms of this rare condition and act quickly to provide appropriate treatment. [ABSTRACT FROM AUTHOR]

A 6 year old boy with a history of infective endocarditis (IE) presented with recurrent disease manifesting as left hip arthritis and severe mitral regurgitation. He developed a rare complication -- a left atrial pseudoaneurysm. Despite the absence of classic fever and systemic symptoms, imaging revealed the recurrence and guided surgical repair. This case highlights the complexities of recurrent IE in children and underscores the importance of high clinical suspicion and imaging modalities like echocardiography for diagnosis and management. [ABSTRACT FROM AUTHOR]

Cavernous carotid aneurysms (CCA) are a rare form of intracranial aneurysms. Patients undergoing clipping of a large unruptured CCA pose multiple anesthetic concerns including intraoperative trigeminocardiac reflex (TCR). The anesthetist's role is paramount, specifically, preprocedure anesthetic preparation, close vital monitoring, familiarity with surgical steps, provision of a relaxed brain, and meticulous control of hemodynamics. Closed-loop communication with the surgeons throughout the surgical procedure is paramount. When TCR occurs, unnecessary use of anticholinergics should be discouraged as the hemodynamic perturbations resolve with cessation of the surgical stimulus. [ABSTRACT FROM AUTHOR]

Anesthetic management of a case of intracranial aneurysm with coarctation of the aorta poses a formidable challenge to the anesthesiologist. The perioperative risks associated with such cases are rupture of an aneurysm, cardiac arrhythmias, stroke from cerebral insufficiency, intracerebral hemorrhage, myocardial ischemia, thromboembolic stroke, and aortic dissection. Endovascular stenting is preferred over surgical clipping of an aneurysm as flow diverter stenting has less morbidity and mortality compared to the latter, and the parent vessel can also be preserved. Despite the perioperative risks, successful stenting of an internal carotid artery aneurysm is beneficial in preventing impending aneurysm rupture and the progressive worsening of neurological symptoms. Therefore, it is imperative to understand the physiological basis behind the unforeseen complex hemodynamic fluctuations occurring during the procedure, as well as the anesthetic goals and complications encountered during the procedure. We describe and discuss the successful anesthetic management of a case of a giant internal carotid artery aneurysm with coarctation of the aorta and autoimmune hemolytic disease posted for flow diverter stenting. [ABSTRACT FROM AUTHOR]

We report a case of a 53-year old male with a giant aneurysm of an arteriovenous fistula (AVF) in the left arm, which was created several years ago due to renal failure secondary to Alport's syndrome. The AVF had not been used for over 38 years after successful renal transplantation at the age of 15. In the following, the patient underwent a regular follow-up with regularly visits by physicians and/or a nephrologist. A growth of the unused AVF over time was noticed, but surgical resection was not performed or recommended. Finally, the patient presented in our clinic with a severe hyperdynamic AVF aneurysm, so that we decided to treat the aneurysmal AVF surgically including exclusion the arteriovenous anastomose and reconstruction of the left arm vessels. Conclusion: Closure of arteriovenous fistula should be considered in patients who underwent successful renal transplantation to avoid potential complications that may result from the presence of unused fistula especially, in patients who are predisposed to aneurysm formation in the future. [ABSTRACT FROM AUTHOR]

Aneurysm formation is a known complication of arteriovenous fistula. Urgent intervention is sometimes required in such cases to prevent the life-threatening complication of rupture as well as to provide suitable vascular access for hemodialysis. The available literature on true aneurysm post-arteriovenous fistula is reviewed. Original research articles/case series on venous aneurysms post-AVF published in the last two decades that is after the year 2000 available on PubMed were analyzed. Various techniques for the management of true aneurysms post-arteriovenous fistula creation are discussed along with their advantages and disadvantages. We also share our experience of a patient with chronic kidney disease who developed a huge cephalic vein aneurysm post-brachiocephalic arteriovenous fistula. The patient was managed with aneurysm resection and the creation of a new radiocephalic arteriovenous fistula in the contralateral upper limb using a saphenous vein graft. [ABSTRACT FROM AUTHOR]