Full Text Journal Articles by
Author Robert Staffa

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Second asymptomatic carotid surgery trial (ACST-2): a randomised comparison of carotid artery stenting versus carotid endarterectomy.

Alison Halliday, Richard Bulbulia, Leo H Bonati, Johanna Chester, Andrea Cradduck-Bamford, Richard Peto, Hongchao Pan, ,

<h4>Background</h4>Among asymptomatic patients with severe carotid artery stenosis but no recent stroke or transient cerebral ischaemia, either carotid artery stenting (CAS) or carotid endarterectomy (CEA) can restore patency and reduce long-term stroke risks. However, from recent national registry data, each option causes about 1% procedural risk of disabling stroke or ... Read more >>

Lancet (Lancet (London, England))
[2021, 398(10305):1065-1073]

Cited: 1 time

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Methodology for Estimation of Annual Risk of Rupture for Abdominal Aortic Aneurysm.

Stanislav Polzer, Jan Kracík, Tomáš Novotný, Luboš Kubíček, Robert Staffa, Madhavan L Raghavan,

<h4>Background and objective</h4>Estimating patient specific annual risk of rupture of abdominal aortic aneurysm (AAA) is currently based only on population. More accurate knowledge based on patient specific data would allow surgical treatment of only those AAAs with significant risk of rupture. This would be beneficial for both patients and health ... Read more >>

Comput Methods Programs Biomed (Computer methods and programs in biomedicine)
[2021, 200:105916]

Cited: 1 time

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Failure properties of abdominal aortic aneurysm tissue are orientation dependent.

Stanislav Polzer, Vojtěch Man, Robert Vlachovský, Luboš Kubíček, Jan Kracík, Robert Staffa, Tomáš Novotný, Jiří Burša, M L Raghavan,

<h4>Introduction</h4>Biomechanical rupture risk assessment of abdominal aortic aneurysm (AAA) requires information about failure properties of aneurysmal tissue. There are large differences between reported values. Among others, studies vary in using either axially or circumferentially oriented samples. This study investigates the effect of sample orientation on failure properties.<h4>Methods</h4>Aneurysmal tissues from 45 ... Read more >>

J Mech Behav Biomed Mater (Journal of the mechanical behavior of biomedical materials)
[2021, 114:104181]

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Six-month pivotal results of tack optimized balloon angioplasty using the Tack Endovascular System in below-the-knee arteries.

Patrick J Geraghty, George Adams, Andrej Schmidt, ,

<h4>Objective</h4>No vascular implant is commercially available in the United States to treat post-angioplasty dissections in below-the-knee (BTK) arteries. The Tack Endovascular System (Intact Vascular, Wayne, Pa) is purpose-built to repair postpercutaneous transluminal angioplasty (PTA) BTK dissections. A trial was conducted to investigate the safety and efficacy of the first-of-a-kind implantable ... Read more >>

J Vasc Surg (Journal of vascular surgery)
[2021, 73(3):918-929.e5]

Cited: 0 times

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The therapeutic effect of B-type natriuretic peptides in acute decompensated heart failure.

Martin Caprnda, Anthony Zulli, Haaris A Shiwani, Peter Kubatka, Slavomira Filipova, Vanda Valentova, Katarina Gazdikova, Ioana Mozos, Andrius Berukstis, Aleksandras Laucevicius, Ivan Rihacek, Jozef Dragasek, Robert Prosecky, Emmanuel E Egom, Robert Staffa, Peter Kruzliak, Vladimir Krasnik,

B-type natriuretic peptide (BNP) exhibits roles in natriuresis and diuresis, making it an ideal drug that may aid in diuresing a fluid-overloaded patient with poor or worsening renal function. Several randomized clinical trials have tested the hypothesis that infusions of pharmacological doses of BNP to acute heart failure (HF) patients ... Read more >>

Clin Exp Pharmacol Physiol (Clinical and experimental pharmacology & physiology)
[2020, 47(7):1120-1133]

Cited: 1 time

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Ischaemic Stroke Caused by a Gunshot Wound to the Chest.

Martin Helán, Martin Ráb, Vladimír Šrámek, Jiří Vaníček, Robert Staffa, Ondřej Volný, Pavel Suk,

<h4>Introduction</h4>Pneumatic weapons rarely cause severe trauma. However, pellet embolisation can cause severe and unexpected injuries.<h4>Report</h4>This is the case study of a 32 year old man, who was shot in the chest with a pneumatic rifle. Initially, urgent damage control surgery was performed to resolve pneumothorax and pericardial tamponade, but no ... Read more >>

EJVES Vasc Forum (EJVES vascular forum)
[2020, 47:97-100]

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Biomechanical indices are more sensitive than diameter in predicting rupture of asymptomatic abdominal aortic aneurysms.

Stanislav Polzer, T Christian Gasser, Robert Vlachovský, Luboš Kubíček, Lukáš Lambert, Vojtěch Man, Kamil Novák, Martin Slažanský, Jiří Burša, Robert Staffa,

<h4>Objective</h4>Several studies of biomechanical rupture risk assessment (BRRA) showed its advantage over the diameter criterion in rupture risk assessment of abdominal aortic aneurysm (AAA). However, BRRA studies have not investigated the predictability of biomechanical risk indices at different time points ahead of rupture, nor have they been performed blinded for ... Read more >>

J Vasc Surg (Journal of vascular surgery)
[2020, 71(2):617-626.e6]

Cited: 1 time

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Impact of drugs on venous thromboembolism risk in surgical patients.

Alenka Premuš Marušič Kovačič, Martin Caprnda, Aleš Mrhar, Peter Kubatka, Igor Locatelli, Barbora Zolakova, Ludovit Gaspar, Robert Prosecky, Peter Kruzliak, Robert Staffa, Luis Rodrigo, Jozef Radonak, Danijel Petrovič,

<h4>Purpose</h4>This review focuses on the most common drugs administered to surgical patients during the perioperative period that affect the risk of venous thromboembolism (VTE).<h4>Results</h4>Among analgesics, the risk of VTE is increased in patients treated with diclofenac, ibuprofen, and rofecoxib, but not naproxen, while metamizole can confer a protective effect. The ... Read more >>

Eur J Clin Pharmacol (European journal of clinical pharmacology)
[2019, 75(6):751-767]

Cited: 1 time

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Current vascular allograft procurement, cryopreservation and transplantation techniques in the Czech Republic.

Miroslav Špaček, Pavel Měřička, Libor Janoušek, Petr Štádler, Miloš Adamec, Robert Vlachovský, Igor Guňka, Pavel Navrátil, Filip Thieme, Rudolf Špunda, Jan Burkert, Robert Staffa, Petr Němec, Jaroslav Lindner,

BACKGROUND:Vascular allotransplantations are performed worldwide in selected patients suffering from vascular prosthesis infection or critical limb ischemia. Either fresh or cryopreserved vascular allograft may be used. OBJECTIVES:In various points, we address several aspects (allograft procurement, cryopreservation and transplantation technique) of the program of vascular allotransplantations in the Czech Republic. MATERIAL ... Read more >>

Adv Clin Exp Med (Advances in clinical and experimental medicine : official organ Wroclaw Medical University)
[2019, 28(4):529-534]

Cited: 3 times

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Effect of intraluminal thrombus on growth rate of abdominal aortic aneurysms.

Andrej Domonkos, Robert Staffa, Luboš Kubíček,

<h4>Background</h4>Abdominal aortic aneurysm (AAA) includes a variety of morphologies with changing properties. Growth rate is one of the most important factors directly linked to the risk of rupture. Intraluminal thrombus (ILT) covering aortic wall is found in the majority of AAAs. Yet, its role in biomechanical processes in AAA remains ... Read more >>

Int Angiol (International angiology : a journal of the International Union of Angiology)
[2019, 38(1):39-45]

Cited: 4 times

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Organization model for allotransplantations of cryopreserved vascular grafts in Czech Republic.

Miroslav Špaček, Pavel Měřička, Libor Janoušek, Petr Štádler, Miloš Adamec, Robert Vlachovský, Igor Guňka, Pavel Navrátil, Filip Thieme, Petr Mitáš, Rudolf Špunda, Jaroslav Špatenka, Robert Staffa, Petr Němec, Jaroslav Lindner,

The transplantation of fresh or cryopreserved vascular allografts in patients with a prosthetic graft infection or critical limb ischemia is necessary for their limb salvage and, in many cases, represents a lifesaving procedure. While transplantation of fresh allografts has a long history in the Czech Republic, the standard use of ... Read more >>

Cell Tissue Bank (Cell and tissue banking)
[2018, 19(3):437-445]

Cited: 2 times

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Treatment of infrapopliteal post-PTA dissection with tack implants: 12-month results from the TOBA-BTK study.

Marianne Brodmann, Christian Wissgott, Andrew Holden, Robert Staffa, Thomas Zeller, Thodur Vasudevan, Peter Schneider,

<h4>Objectives</h4>The Tack implant is designed for focal, minimal metal management of dissections. This study evaluated Tacks for treating postpercutaneous transluminal angioplasty (PTA) dissection in patients with below-the-knee (BTK) arterial occlusive disease.<h4>Background</h4>PTA is the most commonly used endovascular treatment for patients with occlusive disease of the BTK vessels. Post-PTA dissection is ... Read more >>

Catheter Cardiovasc Interv (Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions)
[2018, 92(1):96-105]

Cited: 2 times

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Correlation between transversal and orthogonal maximal diameters of abdominal aortic aneurysms and alternative rupture risk predictors.

Kamil Novak, Stanislav Polzer, Tomas Krivka, Robert Vlachovsky, Robert Staffa, Lubos Kubicek, Lukas Lambert, Jiri Bursa,

<h4>Purpose</h4>There is no standard for measuring maximal diameter (Dmax) of abdominal aortic aneurysm (AAA) from computer tomography (CT) images although differences between Dmax evaluated from transversal (axialDmax) or orthogonal (orthoDmax) planes can be large especially for angulated AAAs. Therefore we investigated their correlations with alternative rupture risk indicators as peak ... Read more >>

Comput Biol Med (Computers in biology and medicine)
[2017, 83:151-156]

Cited: 4 times

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Pseudoaneurysm of the Dorsalis Pedis Artery: Case Report and Literature Review.

Robert Vlachovsky, Robert Staffa, Tomas Novotny,

Aneurysms and pseudoaneurysms of the dorsalis pedis artery are rare vascular entities usually caused by traumatic injury or iatrogenic intervention, producing a focal soft pulsatile tissue mass in the dorsal foot. Gradual expansion of the fibrous capsule can produce secondary physical signs through the pressure exerted on surrounding structures. We ... Read more >>

J Foot Ankle Surg (The Journal of foot and ankle surgery : official publication of the American College of Foot and Ankle Surgeons)
[2017, 56(2):398-400]

Cited: 2 times

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Using Noncontact Infrared Thermography for Long-term Monitoring of Foot Temperatures in a Patient with Diabetes Mellitus.

Erik Staffa, Vladan Bernard, Luboš Kubíček, Robert Vlachovský, Daniel Vlk, Vojtěch Mornstein, Robert Staffa,

Foot complications in persons with diabetes mellitus (DM) are associated with substantial costs and loss of quality of life. Increasing evidence suggests changes in skin temperature, measured using an infrared thermographic system (IRT), may be a predictor of foot ulcer development in patients with DM. The purpose of this case ... Read more >>

Ostomy Wound Manage (Ostomy/wound management)
[2016, 62(4):54-61]

Cited: 2 times

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Infrared thermography as option for evaluating the treatment effect of percutaneous transluminal angioplasty by patients with peripheral arterial disease.

Erik Staffa, Vladan Bernard, Lubos Kubicek, Robert Vlachovsky, Daniel Vlk, Vojtech Mornstein, Ales Bourek, Robert Staffa,

Aim of this study was to evaluate the possible use of infrared thermography as a supplementary method to the ankle-brachial index used in assessing the treatment effect of percutaneous transluminal angioplasty. The study included 21 patients, mean age was 60.22 years. Healthy control group included 20 persons, mean age was ... Read more >>

Vascular (Vascular)
[2017, 25(1):42-49]

Cited: 3 times

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Increased levels of N(ε)- Carboxy methyl lysine (N(ε)-CML) are associated with topographic alterations in retinal pigment epithelium: A preliminary study.

Nibha Mishra, Sandeep Saxena, Surabhi Ruia, Senthamizh Prasad, Vinita Singh, Vinay Khanna, Robert Staffa, Ludovit Gaspar, Peter Kruzliak,

<h4>Purpose</h4>To evaluate the association of serum levels of N(ε)- Carboxy methyl lysine (N(ε)-CML), an advanced glycation end product with topographic alterations in retinal pigment epithelium (RPE) in diabetic retinopathy on spectral domain optical coherence tomography (SD-OCT).<h4>Method</h4>Consecutive cases of type 2 diabetes mellitus with no retinopathy (n=20); non-proliferative diabetic retinopathy (n=20); ... Read more >>

J Diabetes Complications (Journal of diabetes and its complications)
[2016, 30(5):868-872]

Cited: 1 time

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[Carotid stenosis--diagnosis and treatment].

Tomáš Novotný, Robert Staffa,

Diagnosis and treatment of carotid stenosis is under incessant development. Especially in last years, we have noticed significant changes in opinions based on the results of meta-analyses of old evidence and the new evidence as well. Important factor involved is the fast development of new endovascular therapies. In reaction to ... Read more >>

Vnitr Lek (Vnitrni lekarstvi)
[2015, 61(12):1049-1066]

Cited: 0 times

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Results from the Tack Optimized Balloon Angioplasty (TOBA) study demonstrate the benefits of minimal metal implants for dissection repair after angioplasty.

Marc Bosiers, Dierk Scheinert, Jeroen M H Hendriks, Christian Wissgott, Patrick Peeters, Thomas Zeller, Marianne Brodmann, Robert Staffa, ,

<h4>Objective</h4>The mechanism of angioplasty is disruption of atherosclerotic plaque, which often results in dissections. Dissection after percutaneous transluminal angioplasty (PTA) remains a significant clinical problem and untreated may cause acute occlusion or later restenosis. Stents are used to manage dissections, which is often followed by in-stent restenosis and occasionally stent ... Read more >>

J Vasc Surg (Journal of vascular surgery)
[2016, 64(1):109-116]

Cited: 4 times

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Randomized controlled trial comparing the safety and efficacy between the FUSION BIOLINE heparin-coated vascular graft and the standard expanded polytetrafluoroethylene graft for femoropopliteal bypass.

Alan B Lumsden, Nicholas J Morrissey, ,

<h4>Objective</h4>Despite improvements in endovascular therapy for lower extremity arterial disease, open surgical revascularization is still required when the disease is extensive. Although autogenous vein is the conduit of choice for open femoropopliteal bypass, prosthetic grafts can be an acceptable alternative when adequate vein is not available. The FUSION BIOLINE heparin-coated ... Read more >>

J Vasc Surg (Journal of vascular surgery)
[2015, 61(3):703-12.e1]

Cited: 13 times

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Automatic identification and validation of planar collagen organization in the aorta wall with application to abdominal aortic aneurysm.

Stanislav Polzer, T Christian Gasser, Caroline Forsell, Hana Druckmüllerova, Michal Tichy, Robert Staffa, Robert Vlachovsky, Jiri Bursa,

Arterial physiology relies on a delicate three-dimensional (3D) organization of cells and extracellular matrix, which is remarkably altered by vascular diseases like abdominal aortic aneurysms (AAA). The ability to explore the micro-histology of the aorta wall is important in the study of vascular pathologies and in the development of vascular ... Read more >>

Microsc Microanal (Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada)
[2013, 19(6):1395-1404]

Cited: 9 times

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A numerical implementation to predict residual strains from the homogeneous stress hypothesis with application to abdominal aortic aneurysms.

Stanislav Polzer, Jiri Bursa, T Christian Gasser, Robert Staffa, Robert Vlachovsky,

Wall stress analysis of abdominal aortic aneurysm (AAA) is a promising method of identifying AAAs at high risk of rupture. However, neglecting residual strains (RS) in the load-free configuration of patient-specific finite element analysis models is a sever limitation that strongly affects the computed wall stresses. Although several methods for ... Read more >>

Ann Biomed Eng (Annals of biomedical engineering)
[2013, 41(7):1516-1527]

Cited: 9 times

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Evaluation of a novel vascular graft with a distal bifurcation designed to reduce the development of intimal hyperplasia. Experimental study in a porcine aorta model.

Robert Vlachovsky, Robert Staffa, Martin Dvorak, Michal Vlasin, Marketa Hermanova, Thomas O'Brien, Timothy McGloughlin,

<h4>Objective</h4>Abnormal haemodynamics is commonly agreed to be a major contributor to the development of distal anastomotic intimal hyperplasia. A new vascular graft design proposed by computational studies was used to demonstrate its surgical feasibility and to compare it with the conventional graft in a porcine model.<h4>Method</h4>The device was used in ... Read more >>

Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub (Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia)
[2014, 158(4):562-568]

Cited: 0 times

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Importance of material model in wall stress prediction in abdominal aortic aneurysms.

Stanislav Polzer, T Christian Gasser, Jiri Bursa, Robert Staffa, Robert Vlachovsky, Vojtech Man, Pavel Skacel,

<h4>Background</h4>Results of biomechanical simulation of the abdominal aortic aneurysm (AAA) depend on the constitutive description of the wall. Based on in vitro and in vivo experimental data several constitutive models for the AAA wall have been proposed in the literature. Those models differ strongly from each other and their impact ... Read more >>

Med Eng Phys (Medical engineering & physics)
[2013, 35(9):1282-1289]

Cited: 18 times

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Evaluation of a knitted polytetrafluoroethylene mesh placed intraperitoneally in a New Zealand white rabbit model.

Tomáš Novotný, Jiří Jeřábek, Karel Veselý, Robert Staffa, Martin Dvořák, Jan Cagaš,

<h4>Background</h4>The intraperitoneal application of surgical mesh remains a controversial issue because of possible complications, especially adhesion and fistula formation. This study aimed to assess the potential of a knitted polytetrafluoroethylene (PTFE) mesh for intraabdominal implantation.<h4>Methods</h4>Twenty-eight 5 × 5 cm samples of knitted macroporous PTFE mesh and light-weight polypropylene mesh (LW-PP) ... Read more >>

Surg Endosc (Surgical endoscopy)
[2012, 26(7):1884-1891]

Cited: 2 times

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