Publications by authors named "Kontopodis N"

Phlegmasia cerulea dolens (PCD) is a rare but limb-threatening complication of deep vein thrombosis. A 72-year-old hemodialysis male patient presented with upper limb PCD. The patient underwent hemodialysis via a permanent hemodialysis central venous catheter (HD-CVC) while a new brachial-cephalic AVF was created 1 month ago.

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  • Spontaneous coronary artery dissection (SCAD) is a key cause of heart issues for women under 50, especially during pregnancy, connecting it to systemic arterial disorders like Ehlers-Danlos and Marfan syndromes.
  • It often coexists with conditions like fibromuscular dysplasia and other vascular abnormalities, highlighting a genetic link to SCAD.
  • The American Heart Association suggests using advanced imaging, like computed tomography angiography (CTA) and magnetic resonance angiography (MRA), for better diagnosis of related vascular disorders, focusing on the effectiveness of these non-invasive methods.
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Although vascular injuries complicate only 1-2% of patients with orthopedic trauma, they may be encountered in a much higher rate of around 10 % in injuries around the knee and elbow joints following both fractures and dislocations. In case of vascular involvement, specific diagnostic and therapeutic challenges arise and there is a higher risk for significant morbidity (i.e.

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Introduction: Ruptured abdominal aortic aneurysms (AAAs) pose an immediate threat for patient's life and endovascular repair (EVAR) is currently the preferred treatment modality in the presence of suitable anatomy. This is determined based on the requirements of each endograft as described in the instructions for use (IFU). The new ALTO system (Endologix, Irvin, CA, U.

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Purpose: To compare the hemodynamic performance of three (Bottom Up non-ballet, Top-Down non-ballet, Top Down ballet) idealized stent graft configurations used during endovascular repair of abdominal aortic aneurysms, under the influence of various rheological models.

Methods: Ten rheological models are assumed and a commercial finite volume solver is employed for the simulation of blood flow under realistic boundary conditions. An appropriate mesh convergence study is performed and five hemodynamic variables are computed: the time average wall shear stress (TAWSS), oscillatory shear index (OSI), relative residence time (RRT), endothelial cell activation potential (ECAP) and displacement force (DF) for all three configurations.

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Purpose: Our objective was to investigate whether patients who receive anticoagulation therapy have different outcomes after endovascular aneurysm repair (EVAR) from those who do not.

Materials And Methods: We conducted a systematic review of studies that compared outcomes of EVAR in patients who were on therapeutic anticoagulation vs those who were not. We developed and reported the review in accordance with the PRISMA guidelines with a registered protocol (CRD42022375894).

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  • * A 75-year-old man with a history of abdominal aorta surgery was admitted due to anemia and fatigue, which led to further imaging studies.
  • * Despite attempts to identify the primary site, the patient was diagnosed posthumously with angiosarcoma after finding metastases in the bones and experiencing severe lung complications.
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Retroperitoneal soft tissue sarcoma (RPS) is a rare and heterogenous disease for which surgery is the cornerstone of treatment. However, the local recurrence rate is much higher than in soft tissue sarcoma of the extremities since wide resection is usually unfeasible in RPS due to its large size, indistinct tumour borders, anatomical constraints and the thinness of the overlying peritoneum. Local recurrence is the leading cause of death for low-grade RPS, whereas high-grade tumours are prone to distant metastases.

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Introduction: is a small Gram-positive facultative anaerobic coccoid rod that was reclassified in 1997 from the genus and is difficult to culture with usual microbiological techniques, as it is slowly growing. is an emerging human pathogen that is most commonly implicated in urinary tract infections (UTIs), but has also been isolated less frequently from abscesses of various sites (such as the skin, the genitourinary tract, surgical sites or intraabdominal).

Methods: All cases where was identified during a 6-year period (January 2016 - January 2022) in the University Hospital of Heraklion were reviewed.

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  • The study compares four surgical and endovascular techniques for treating aorto-iliac occlusive disease: Aortobifemoral bypass (AoBFB), axillobifemoral bypass (AxBFB), aorto-iliac kissing stents (KS), and covered endovascular reconstruction of aortic bifurcation (CERAB).
  • Eight patient-specific anatomies were analyzed using computational modeling to evaluate haemodynamic performance, focusing on pressure drop (ΔP), Time Average Wall Shear Stress (TAWSS), Oscillatory Shear Index (OSI), and Relative Residence Time (RRT) as indicators for thrombogenic risk.
  • Results show that AoBFB had the best
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Objective: Bypass surgery plays a key role in complex lower limb lesions. However, there is a lack of evidence regarding the management of symptomatic prosthetic bypass graft (PBG) occlusion. This study aimed to report outcomes following open, hybrid, or endovascular management of patients presenting with symptomatic PBG occlusion.

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During the vascular surgical reconstruction of aorto-iliac occlusive/aneurysmal disease, bifurcated grafts are used where vascular surgeons intra-operatively select the size and the relative lengths of the parent and daughter portions of the graft. Currently, clinical practice regarding the selection of the most favorable geometric configuration of the graft is an understudied research subject: decisions are solely based on the clinical experience of the operating surgeon. This manuscript aims to evaluate the hemodynamic performance of various diameters, D, of bifurcated aortic grafts and relate those with proximal/distal part length ratios (the angle φ between the limbs is used as a surrogate marker of the main body-to-limb length ratio) in order to provide insights regarding the effects of different geometries on the hemodynamic environment.

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  • The study aimed to compare the outcomes of two treatment methods for abdominal aortic aneurysm (AAA) in younger patients: endovascular repair (EVAR) and open repair.
  • A systematic review of 15 observational studies and 1 randomized controlled trial was conducted, involving nearly 49,000 young patients, with the risk of bias assessed through established frameworks.
  • Results indicated that while EVAR had lower perioperative mortality and shorter hospital stays, overall and aneurysm-related mortality rates were not significantly different between the two methods, and complications were generally lower with EVAR as well.
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Objective: This study aimed to investigate whether prophylactic use of cerebrospinal fluid (CSF) drainage in endovascular descending thoracic aortic aneurysm (DTAA) and thoraco-abdominal aortic aneurysm (TAAA) repair contributes to a lower rate of post-operative spinal cord ischaemia (SCI).

Data Sources: MEDLINE, Embase, and CINAHL.

Review Methods: A literature review was conducted in accordance with PRISMA guidelines (PROSPERO registration no.

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Background:  Abdominal compartment syndrome (ACS) often complicates ruptured abdominal aortic aneurysm (rAAA) repair. We report results with routine skin-only abdominal wound closure after rAAA surgical repair.

Methods:  This was a single-center retrospective study including consecutive patients undergoing rAAA surgical repair for the duration of 7 years.

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Background: Abdominal aortic aneurysms (AAAs) are currently treated based on the universal maximum diameter criterion, but other geometric variables may play a role in the risk of rupture. The hemodynamic environment inside the AAA sac has been shown to interact with several biologic processes which can affect prognosis. AAA geometric configuration has a significant impact in the hemodynamic conditions that develop, which has only been recently realized, with implications for rupture risk estimations.

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Background: The effects of non-Newtonian rheology and boundary conditions on various pathophysiologies have been studied quite extensively in the literature. The majority of results present qualitative and/or quantitative conclusions that are not thoroughly assessed from a statistical perspective.

Methods: The finite volume method was employed for the numerical simulation of seven patient-specific abdominal aortic aneurysms.

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Background: To investigate outcomes of pre-emptive embolization of the aneurysm sac or aortic side branches in endovascular aneurysm repair (EVAR).

Methods: The review was reported as per Preferred Reporting Items for Systematic reviews and Meta-Analyses 2020 with a preregistered protocol. Bibliographic sources (MEDLINE, Embase, and CENTRAL) were searched using subject headings and free text terms.

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