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199 results on '"Dimakakos, P"'

1. Position Paper on the Management of Pregnancy-Associated Superficial Venous Thrombosis. Balkan Working Group for Prevention and Treatment of Venous Thromboembolism

Author

Darko Antic MD, PhD, Eleftheria Lefkou MD, PhD, Vladimir Otasevic MD, Ljiljana Banfic MD, PhD, Evangelos Dimakakos MD, PhD, Dan Olinic MD, PhD, Dragan Milić MD, PhD, Predrag Miljić MD, PhD, Sokol Xhepa MD, PhD, Igor Stojkovski MD, PhD, Matija Kozak MD, PhD, Doina Ruxandra Dimulescu MD, PhD, Tamara Kovačević Preradović MD, PhD, Jasminka Nancheva MD, PhD, Evelina Evtimova Pazvanska MD, PhD, Gregor Tratar MD, PhD, and Grigoris T. Gerotziafas MD, PhD

Subjects
Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract

Venous thromboembolism (VTE) is a multifactorial disease that can possibly affect any part of venous circulation. The risk of VTE increases by about 2 fold in pregnant women and VTE is one of the major causes of maternal morbidity and mortality. For decades superficial vein thrombosis (SVT) has been considered as benign, self-limiting condition, primarily local event consequently being out of scope of well conducted epidemiological and clinical studies. Recently, the approach on SVT has significantly changed considering that prevalence of lower limb SVT is twice higher than both deep vein thrombosis (DVT) and pulmonary embolism (PE). The clinical severity of SVT largely depends on the localization of thrombosis, when it concerns the major superficial vein vessels of the lower limb and particularly the great saphenous vein. If untreated or inadequately treated, SVT can potentially cause DVT or PE. The purpose of this review is to discuss the complex interconnection between SVT and risk factors in pregnancy and to provide evidence-based considerations, suggestions, and recommendations for the diagnosis and treatment of this precarious and delicate clinical entity.

Published
2022
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2. Tinzaparin Safety in Patients With Cancer and Renal Impairment: A Systematic Review

Author

I. A. Vathiotis MD, PhD, N. K. Syrigos MD, PhD, and E. P. Dimakakos MD, PhD

Subjects
Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract

Low-molecular-weight heparins are approved for primary and secondary venous thromboembolism prevention. Tinzaparin is the low-molecular-weight heparin with the highest average molecular weight. The purpose of this systematic review is to provide an update regarding the safety profile of tinzaparin, prescribed either as a prophylactic or as a therapeutic regimen for venous thromboembolism in special populations, including cancer patients and patients with renal impairment. We identified prospective studies up to August 2020 reporting safety outcomes for cancer patients and patients with renal impairment on tinzaparin regimens. In patients with cancer major bleeding rates fluctuated between 0.8% and 7%. Patients on tinzaparin exhibited significantly lower rates of clinically relevant nonmajor bleeding events in comparison with those on vitamin K antagonists. Bioaccumulation of tinzaparin was not correlated with age, body weight or creatinine clearance. Periodic administration of either prophylactic or therapeutic doses of tinzaparin did not result in bioaccumulation, even in patients with severe renal impairment and creatinine clearance < 20 ml/min. Major bleeding rates for non-cancer patients with renal impairment on prophylactic tinzaparin regimens were 0%. Non-cancer patients with renal impairment on therapeutic tinzaparin regimens exhibited major bleeding in 0 to 3.4% of cases; major bleeding rates were higher for cancer patients with renal impairment on therapeutic tinzaparin regimens (4.3 to 10%). Tinzaparin can be used without dose adjustment in patients with severe renal impairment and creatinine clearance > 20 ml/min. Tinzaparin represents a safe choice for special populations at increased risk for thrombosis and bleeding.

Published
2021
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3. Outpatient treatment of pulmonary embolism

Author

Elena Bellou, Elli Keramida, Ioannis Karampinis, Evaggelos Dimakakos, Panagiotis Misthos, Panagiotis Demertzis, and Georgia Hardavella

Subjects
Diseases of the respiratory system, RC705-779
Abstract

Over the past decade there has been an increasing trend to manage many conditions traditionally treated during a hospital admission as outpatients. Evidence is increasing to support this approach in patients with pulmonary embolism (PE). In this article, we review the current status of outpatient management of confirmed PE and present a pragmatic approach for clinical healthcare settings.

Published
2020
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4. IL-6 is associated to IGF-1Ec upregulation and Ec peptide secretion, from prostate tumors

Author

A. Armakolas, A. Dimakakos, C. Loukogiannaki, N. Armakolas, A. Antonopoulos, C. Florou, P. Tsioli, E. Papageorgiou, T. P. Alexandrou, M. Stathaki, D. Spinos, D. Pektasides, E. Patsouris, and M. Koutsilieris

Subjects
Immune response, IGF-1Ec, Il-6, Il-6R, JAK2/STAT3 pathway, MSCs mobilisation, Therapeutics. Pharmacology, RM1-950, Biochemistry, QD415-436
Abstract

Abstract Background Ec peptide (PEc), resulting from the proteolytic cleavage of the IGF-1Ec isoform, is involved in prostate cancer progression and metastasis, whereas in muscle tissue, it is associated with the mobilization of satellite cells prior to repair. Our aim is to determine the physiological conditions associated to the IGF-1Ec upregulation and PEc secretion in prostate tumors, as well as, the effect of tumor PEc on tumor repair. Methods IGF-1 (mature and isoforms) expression was examined by qRT-PCR, both in prostate cancer cells co-incubated with cells of the immune response (IR) and in tumors. PEc secretion was determined by Multiple Reaction Monitoring. The effect of PEc, on mesenchymal stem cell (MSC) mobilization and repair, was examined using migration and invasion assays, FISH and immunohistochemistry (IHC). The JAK/STAT signaling pathway leading to the IGF1-Ec expression was examined by western blot analysis. Determination of the expression and localization of IL-6 and IGF-1Ec in prostate tumors was examined by qRT-PCR and by IHC. Results We documented that IL-6 secreted by IR cells activates the JAK2 and STAT3 pathway through IL-6 receptor in cancer cells, leading to the IGF-1Ec upregulation and PEc secretion, as well as to the IL-6 expression and secretion. The resulting PEc, apart from its oncogenic role, also mobilizes MSCs towards the tumor, thus promoting tumor repair. Conclusions IL-6 leads to the PEc secretion from prostate cancer cells. Apart from its oncogenic role, PEc is also involved in the mobilization of MSCs resulting in tumor repair.

Published
2018
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5. Urgent need to clarify the definition of chronic critical limb ischemia – a position paper from the European Society for Vascular Medicine

Author

Constans, Joël, Bura-Rivière, Alessandra, Visona, Adriana, Brodmann, Marianne, Abraham, Pierre, Olinic, Dan-Mircea, Madaric, Juraj, Steiner, Sabine, Quéré, Isabelle, Mazzolai, Lucia, Belch, Jill, Heiss, Christian, Pécsvárady, Zsolt, Roztocil, Karel, Colgan, Mary-Paula, Vasic, Dragan, Gottsäter, Anders, Dimakakos, Evangelos, Chraim, Ali, Poredoš, Pavel, Carpentier, Patrick H., Wautrecht, Jean-Claude, Stanek, Agata, and Boc, Vinco

Abstract

Abstract.Chronic critical lower limb ischemia (CLI) has been defined as ischemia that endangers the leg. An attempt was made to give a precise definition of CLI, based on clinical and hemodynamic data (Second European Consensus). CLI may be easily defined from a clinical point of view as rest pain of the distal foot or gangrene or ulceration. It is probably useful to add leg ulcers of other origin which do not heal because of severe ischemia, and to consider the impact of frailty on adverse outcome. From a hemodynamic viewpoint there is no consensus and most of the existing classifications are not based upon evidence. We should thus propose a definition and then validate it in a prospective cohort in order to define the patients at major risk of amputation, and also to define the categories of patients whose prognosis is improved by revascularisation. From today’s available data, it seems clear that the patients with a systolic toe pressure (STP) below 30 mmHg must be revascularised whenever possible. However other patients with clinically suspected CLI and STP above 30 mmHg must be evaluated and treated in specialised vascular units and revascularisation has to be discussed on a case by case basis, taking into account other data such as the WiFi classification for ulcers.In conclusion, many useful but at times contradictory definitions of CLI have been suggested. Only a few have taken into account evidence, and none have been validated prospectively. This paper aims to address this and to give notice that a CLI registry within Europe will be set up to prospectively validate, or not, the previous and suggested definitions of CLI.

Published
2024
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9. Oncogenic Role of the Ec Peptide of the IGF-1Ec Isoform in Prostate Cancer

Author

Armakolas, Athanasios, Kaparelou, Maria, Dimakakos, Andreas, Papageorgiou, Efstathia, Armakolas, Nikolaos, Antonopoulos, Athanasios, Petraki, Constantina, Lekarakou, Maria, Lelovas, Pavlos, Stathaki, Martha, Psarros, Constantinos, Donta, Ismene, Galanos, Panos S., Msaouel, Paul, Gorgoulis, Vassilis G., and Koutsilieris, Michael

Published
2015
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29. Severity of Asymptomatic Carotid Stenosis and Risk of Ipsilateral Hemispheric Ischaemic Events: Results from the ACSRS Study

Author

Nicolaides, A, Kakkos, S, Griffin, M, Sabetai, M, Dhanjil, S, Tegos, T, Thomas, D, Giannoukas, A, Geroulakos, G, Georgiou, N, Francis, S, Ioannidou, E, Doré, C, Adovasio, R, Ziani, B, Aló, E, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkauskas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, DeRango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopolous, E, Andreadis, E, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Norgren, L, Ribbie, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, P, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Schroeder, T, Gronholdt, M, Finocchi, C, Rodriguez, G, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardilleas, n, Aloi, T, Salerno, M, Fernandes, J., BIASI, GIORGIO MARIA, MINGAZZINI, PAOLO, Nicolaides, A, Kakkos, S, Griffin, M, Sabetai, M, Dhanjil, S, Tegos, T, Thomas, D, Giannoukas, A, Geroulakos, G, Georgiou, N, Francis, S, Ioannidou, E, Doré, C, Adovasio, R, Ziani, B, Aló, E, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkauskas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopolous, E, Andreadis, E, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Norgren, L, Ribbie, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, P, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Schroeder, T, Gronholdt, M, Finocchi, C, Rodriguez, G, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardilleas, N, Aloi, T, Salerno, M, Fernandes, J, NICOLAIDES A N, KAKKOS S K, GRIFFIN M, SABETAI M, DHANJIL S, TEGOS T, THOMAS D J, GIANNOUKAS A, GEROULAKOS G, GEORGIOU N, FRANCIS S, IOANNIDOU E, and NOVO S

Subjects
Risk, medicine.medical_specialty, medicine.medical_treatment, Carotid Stenosi, Predictive Value of Test, Carotid endarterectomy, Severity of Illness Index, Asymptomatic, Brain Ischemia, chemistry.chemical_compound, Cerebrovascular Accident, medicine.artery, Internal medicine, Severity of illness, NASCET, MED/22 - CHIRURGIA VASCOLARE, medicine, Carotid, Stenosis, Medicine(all), Ultrasonography, Doppler, Duplex, Creatinine, business.industry, Risk Factor, Incidence (epidemiology), medicine.disease, major clinical study, Ultrasonography, Duplex, Doppler, chemistry, Predictive value of tests, Cardiology, Surgery, ECST, Radiology, Internal carotid artery, medicine.symptom, Cardiology and Cardiovascular Medicine, business, Human
Abstract

Objectives. This study determines the risk of ipsilateral ischaemic neurological events in relation to the degree of asymptomatic carotid stenosis and other risk factors. Methods. Patients (n = 1115) with asymptomatic internal carotid artery (ICA) stenosis greater than 50% in relation to the bulb diameter were followed up for a period of 6-84 (mean 37.1) months. Stenosis was graded using duplex, and clinical and biochemical risk factors were recorded. Results. The relationship between ICA stenosis and event rate is linear when stenosis is expressed by the ECST method, but S-shaped if expressed by the NASCET method. In addition to the ECST grade of stenosis (RR 1.6; 95% CI 1.21-2.15), history of contralateral TIAs (RR 3.0; 95% CI 1.90-4.73) and creatinine in excess of 85 μmol/L (RR 2.1; 95% CI 1.23-3.65) were independent risk predictors. The combination of these three risk factors can identify a high-risk group (7.3% annual event rate and 4.3% annual stroke rate) and a low risk group (2.3% annual event rate and 0.7% annual stroke rate). Conclusions. Linearity between ECST percent stenosis and risk makes this method for grading stenosis more amenable to risk prediction without any transformation not only in clinical practice but also when multivariable analysis is to be used. Identification of additional risk factors provides a new approach to risk stratification and should help refine the indications for carotid endarterectomy. © 2005 Elsevier Ltd. All rights reserved.

Published
2005
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30. Asymptomatic internal carotid artery stenosis and cerebrovascular risk stratification

Author

Nicolaides, Andrew N, Kakkos, Stavros K., Kyriacou, Efthyvoulos, Griffin, Maura, Sabetai, Michael, Thomas, Dafydd J., Tegos, Thomas, Geroulakos, George, Labropoulos, Nicos, Dor, Caroline J., Morris, Tim P., Naylor, Ross, Abbott, Anne L., Adovasio, Roberto, Ziani, B., Alò, F. P., Cicilioni, C. G., Ambrosio, G., Andreev, A., Andreozzi, G. M., Verlato, F., Camporese, G., Arosio, E., Barkauskas, E., Barros D'Sa, A. A. B., Brannigan, P., Batchvarova, V., Dramov, A., Belardi, P., Novelli, Gp, Simoni, G., Bell, P., Biasi, G. M., Mingazzini, P., Bornstein, N. M., Bouchier Hayes, D., Fitzgerald, P., Cairols, M. A., Cao, P. G., Derango, P., Carboni, G. P., Geoffredo, C., Catalano, M., Chambers, B., Goetzmann, M., Dickinson, A., Clement, D., Bobelyn, M., Coccheri, S., Conti, E., Diamantopoulos, E., Andreadis, E. A., Dimakakos, P. B., Kotsis, T., Eikelboom, B., Entz, L., Ferrari Bardile, Null, Aloi, T., Salerno, M., Fernandes e. Fernandes, J., Pedro, L., Fitzgerald, D. E., O'Shaunnersy, Anne, Fletcher, J., Forconi, S., Cappeli, R., Bicchi, M., Arrigucci, S., Gallai, V., Cardaiolli, G., Geroulakos, G., Kakkos, S., Gomez Isaza, L. F., Gorgoyannis, G., Liasis, N., Graf, M., Guarini, P., Hardy, S., Harris, P., Aston, S., Iosa, G., Katsamouris, A., Giannoukas, A., Krzanowski, M., Ladurner, G., Leal Monedero, J., Lee, B. B., Liapis, C., Galanis, P., Liboni, W., Pavanelli, E., Mannarino, E., Vaudo, G., Mccollum, P., Levison, R., Micieli, G., Bosone, D., Middleton, L., Pantziaris, M., Tyllis, T., Minar, E., Willfort, A., Moggi, L., Nenci, G., Radicchia, S., Nicolaides, A., Thomas, D, Norgren, L., Ribbe, E., Novo, S., Tantillo, R., Olinic, D., Paaske, W., Pagnan, A., Pauletto, P., Pagliara, V., Pettina, G., Pratesi, C., Matticari, S., Polivka, J., Sevcik, P., Poredos, P., Blinc, A., Videcnik, V., Pujia, A., Raso, A., Rispoli, P., Conforti, M., Robinson, T., Dennis, M. S. J., Rosfors, S., Rudofsky, G., Schroeder, T., Gronholdt, M. L., Finocchi, C., Rodriguez, G., Spartera, C., Ventura, M., Scarpelli, P., Sprynger, M., Sadzot, B., Hottermans, C., Moonen, Null, Taylor, P. R., Tovar Pardo, A., Negreira, J., Vayssairat, M., Faintuch, J. M., Valaikiené, J., Walker, M. G., Wilkinson, A. R., Nicolaides, A, Kakkos, S, Kyriacou, E, Griffin, M, Sabetai, M, Thomas, D, Tegos, T, Geroulakos, G, Labropoulos, N, Dor, C, Morris, T, Naylor, R, Abbott, A, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkauskas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopoulos, E, Andreadis, E, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardileah, N, Aloi, T, Salerno, M, Fernandes, J, Pedro, L, Fitzgerald, D, O'Shaunnersy, A, Fletcher, J, Forconi, S, Cappeli, R, Bicchi, M, Arrigucci, S, Gallai, V, Cardaiolli, G, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Giannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Norgren, L, Ribbe, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, P, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Schroeder, T, Gronholdt, M, Finocchi, C, Rodriguez, G, Spartera, C, Ventura, M, Scarpelli, P, Sprynger, M, Sadzot, B, Hottermans, C, Moonenbp, N, Taylor, P, Tovar Pardo, A, Negreira, J, Vayssairat, M, Faintuch, J, Valaikiené, J, Walker, M, Wilkinson, A, Nicolaides, Andrew N, Kakkos, Stavros K., Kyriacou, Efthyvoulo, Griffin, Maura, Sabetai, Michael, Thomas, Dafydd J., Tegos, Thoma, Geroulakos, George, Labropoulos, Nico, Dor, Caroline J., Morris, Tim P., Naylor, Ro, Abbott, Anne L., Adovasio, Roberto, Ziani, B., Alò, F. P., Cicilioni, C. G., Ambrosio, G., Andreev, A., Andreozzi, G. M., Verlato, F., Camporese, G., Arosio, E., Barkauskas, E., Barros D'Sa, A. A. B., Brannigan, P., Batchvarova, V., Dramov, A., Belardi, P., Novelli, Gp, Simoni, G., Bell, P., Biasi, G. M., Mingazzini, P., Bornstein, N. M., Bouchier Hayes, D., Fitzgerald, P., Cairols, M. A., Cao, P. G., Derango, P., Carboni, G. P., Geoffredo, C., Catalano, M., Chambers, B., Goetzmann, M., Dickinson, A., Clement, D., Bobelyn, M., Coccheri, S., Conti, E., Diamantopoulos, E., Andreadis, E. A., Dimakakos, P. B., Kotsis, T., Eikelboom, B., Entz, L., Ferrari Bardile, Null, Aloi, T., Salerno, M., Fernandes e. Fernandes, J., Pedro, L., Fitzgerald, D. E., O'Shaunnersy, Anne, Fletcher, J., Forconi, S., Cappeli, R., Bicchi, M., Arrigucci, S., Gallai, V., Cardaiolli, G., Geroulakos, G., Kakkos, S., Gomez Isaza, L. F., Gorgoyannis, G., Liasis, N., Graf, M., Guarini, P., Hardy, S., Harris, P., Aston, S., Iosa, G., Katsamouris, A., Giannoukas, A., Krzanowski, M., Ladurner, G., Leal Monedero, J., Lee, B. B., Liapis, C., Galanis, P., Liboni, W., Pavanelli, E., Mannarino, E., Vaudo, G., Mccollum, P., Levison, R., Micieli, G., Bosone, D., Middleton, L., Pantziaris, M., Tyllis, T., Minar, E., Willfort, A., Moggi, L., Nenci, G., Radicchia, S., Nicolaides, A., Norgren, L., Ribbe, E., Novo, S., Tantillo, R., Olinic, D., Paaske, W., Pagnan, A., Pauletto, P., Pagliara, V., Pettina, G., Pratesi, C., Matticari, S., Polivka, J., Sevcik, P., Poredos, P., Blinc, A., Videcnik, V., Pujia, A., Raso, A., Rispoli, P., Conforti, M., Robinson, T., Dennis, M. S. J., Rosfors, S., Rudofsky, G., Schroeder, T., Gronholdt, M. L., Finocchi, C., Rodriguez, G., Spartera, C., Ventura, M., Scarpelli, P., Sprynger, M., Sadzot, B., Hottermans, C., Moonen, Null, Taylor, P. R., Tovar Pardo, A., Negreira, J., Vayssairat, M., Faintuch, J. M., Valaikiené, J., Walker, M. G., and Wilkinson, A. R.

Subjects
Male, Carotid Stenosi, carotid artery stenosis, Brain Ischemia, 80 and over, MED/22 - CHIRURGIA VASCOLARE, Carotid Stenosis, Cerebrovascular disease, cerebrovascular risk, Stroke, Ultrasonography, Aged, 80 and over, Middle Aged, cardiovascular system, Female, Radiology, Internal carotid artery, medicine.symptom, Cardiology and Cardiovascular Medicine, Carotid Artery, Internal, Adult, Aged, Amaurosis Fugax, Humans, ROC Curve, Risk Assessment, Surgery, Human, medicine.medical_specialty, Asymptomatic, Central nervous system disease, medicine.artery, medicine, Asymtomatic carotid stenosis, cardiovascular diseases, Risk factor, carotid surgery, Vascular disease, business.industry, Amaurosis fugax, medicine.disease, Internal, Stenosis, atherosclerosis, Carotid Artery, business
Abstract

Background: The purpose of this study was to determine the cerebrovascular risk stratification potential of baseline degree of stenosis, clinical features, and ultrasonic plaque characteristics in patients with asymptomatic internal carotid artery (ICA) stenosis. Methods: This was a prospective, multicenter, cohort study of patients undergoing medical intervention for vascular disease. Hazard ratios for ICA stenosis, clinical features, and plaque texture features associated with ipsilateral cerebrovascular or retinal ischemic (CORI) events were calculated using proportional hazards models. Results: A total of 1121 patients with 50% to 99% asymptomatic ICA stenosis in relation to the bulb (European Carotid Surgery Trial [ECST] method) were followed-up for 6 to 96 months (mean, 48). A total of 130 ipsilateral CORI events occurred. Severity of stenosis, age, systolic blood pressure, increased serum creatinine, smoking history of more than 10 pack-years, history of contralateral transient ischemic attacks (TIAs) or stroke, low grayscale median (GSM), increased plaque area, plaque types 1, 2, and 3, and the presence of discrete white areas (DWAs) without acoustic shadowing were associated with increased risk. Receiver operating characteristic (ROC) curves were constructed for predicted risk versus observed CORI events as a measure of model validity. The areas under the ROC curves for a model of stenosis alone, a model of stenosis combined with clinical features and a model of stenosis combined with clinical, and plaque features were 0.59 (95% confidence interval [CI] 0.54-0.64), 0.66 (0.62-0.72), and 0.82 (0.78-0.86), respectively. In the last model, stenosis, history of contralateral TIAs or stroke, GSM, plaque area, and DWAs were independent predictors of ipsilateral CORI events. Combinations of these could stratify patients into different levels of risk for ipsilateral CORI and stroke, with predicted risk close to observed risk. Of the 923 patients with

Published
2010
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31. Predictors and clinical significance of progression or regression of asymptomatic carotid stenosis

Author

Kakkos, Sk, Nicolaides, An, Charalambous, I, Thomas, D, Giannopoulos, A, Naylor, Ar, Geroulakos, G, Abbott, Al, Asymptomatic Carotid Stenosis, Risk of Stroke Study Group Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkauskas, E, D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopoulos, E, Andreadis, E, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardile, A, Aloi, T, Salerno, M, Fernandes J, Fernandes e., Pedro, L, Fitzgerald, D, O'Shaughnessy, A, Fletcher, J, Forconi, S, Cappeli, R, Bicchi, M, Arrigucci, S, Gallai, V, Cardaiolli, G, Kakkos, S, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Giannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Nicolaides, A, Norgren, L, Ribbe, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, Pietro, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Schroeder, T, Gronholdt, M, Finocchi, C, Rodriguez, G, Spartera, C, Ventura, M, Scarpelli, P, Sprynger, M, Sadzot, B, Hottermans, C, Moonen, M, Taylor, P, Tovar Pardo, A, Negreira, J, Vayssairat, M, Faintuch, J, Valaikiené, J, Walker, M, Wilkinson, A. R., Kakkos, Stavros K., Nicolaides, Andrew N., Charalambous, Ioanna, Thomas, Dafydd, Giannopoulos, Argyrio, Naylor, A. Ro, Geroulakos, George, Abbott, Anne L., Adovasio, Roberto, Ziani, B., Alò, F. P., Cicilioni, C. G., Ambrosio, G., Andreev, A., Andreozzi, G. M., Verlato, F., Camporese, G., Arosio, E., Barkauskas, E., Barros D'Sa, A. A. B., Brannigan, P., Batchvarova, V., Dramov, A., Belardi, P., Novelli, G. P., Simoni, G., Bell, P., Biasi, G. M., Mingazzini, P., Bornstein, N. M., Bouchier Hayes, D., Fitzgerald, P., Cairols, M. A., Cao, P. G., Derango, P., Carboni, G. P., Geoffredo, C., Catalano, M., Chambers, B., Goetzmann, M., Dickinson, A., Clement, D., Bobelyn, M., Coccheri, S., Conti, E., Diamantopoulos, E., Andreadis, E. A., Dimakakos, P. B., Kotsis, T., Eikelboom, B., Entz, L., Ferrari Bardile, A., Aloi, T., Salerno, M., Fernandes E. Fernandes, J., Pedro, L., Fitzgerald, D. E., O'Shaughnessy, A. M., Fletcher, J., Forconi, S., Cappeli, R., Bicchi, M., Arrigucci, S., Gallai, V., Cardaiolli, G., Gomez Isaza, L. F., Gorgoyannis, G., Liasis, N., Graf, M., Guarini, P., Hardy, S., Harris, P., Aston, S., Iosa, G., Katsamouris, A., Giannoukas, A., Krzanowski, M., Ladurner, G., Leal Monedero, J., Lee, B. B., Liapis, C., Galanis, P., Liboni, W., Pavanelli, E., Mannarino, E., Vaudo, G., Mccollum, P., Levison, R., Micieli, G., Bosone, D., Middleton, L., Pantziaris, M., Tyllis, T., Minar, E., Willfort, A., Moggi, L., Nenci, G., Radicchia, S., Norgren, L., Ribbe, E., Novo, S., Tantillo, R., Olinic, D., Paaske, W., Pagnan, A., Pauletto, P., Pagliara, V., Pettina, G., Pratesi, C., Matticari, S., Polivka, J., Sevcik, P., Poredos, P., Blinc, A., Videcnik, V., Pujia, A., Raso, A., Rispoli, P., Conforti, M., Robinson, T., Dennis, M. S. J., Rosfors, S., Rudofsky, G., Schroeder, T., Gronholdt, M. L., Finocchi, C., Rodriguez, G., Spartera, C., Ventura, M., Scarpelli, P., Sprynger, M., Sadzot, B., Hottermans, C., Moonen, M., Taylor, P. R., Tovar Pardo, A., Negreira, J., Vayssairat, M., Faintuch, J. M., Valaikiené, J., Walker, M. G., and Wilkinson, A. R.

Subjects
Male, Time Factors, Cost effectiveness, medicine.medical_treatment, Carotid Stenosi, Predictive Value of Test, Kaplan-Meier Estimate, Carotid endarterectomy, Retinal Disease, Risk Factors, 80 and over, Carotid Stenosis, Plaque, Atherosclerotic, Ultrasonography, Aged, 80 and over, Ultrasonography, Doppler, Duplex, Incidence, Remission Induction, Doppler, Middle Aged, Prognosis, Plaque, Atherosclerotic, Duplex, Europe, Stroke, Predictive value of tests, Disease Progression, Cardiology, Female, medicine.symptom, Cardiology and Cardiovascular Medicine, Carotid Artery, Internal, Human, Adult, medicine.medical_specialty, Time Factor, Victoria, Prognosi, Asymptomatic, Retinal Diseases, Predictive Value of Tests, Internal medicine, medicine, Humans, Clinical significance, Aged, Asymptomatic Disease, business.industry, Risk Factor, medicine.disease, Internal, Confidence interval, Surgery, Stenosis, Asymptomatic Diseases, Relative risk, asymptomatic carotid artery stenosis, Carotid Artery, business
Abstract

OBJECTIVE: To determine baseline clinical and ultrasonographic plaque factors predictive of progression or regression of asymptomatic carotid stenosis and the predictive value of changes in stenosis severity on risk of first ipsilateral cerebral or retinal ischemic events (including stroke).METHODS: A total of 1121 patients with asymptomatic carotid stenosis of 50% to 99% in relation to the bulb diameter (European Carotid Surgery Trial [ECST] method) underwent six monthly clinical assessments and carotid duplexes for up to 8 years (mean follow-up, 4 years). Progression or regression was considered present if there was a change of at least one grade higher or lower, respectively, persisting for at least two consecutive examinations.RESULTS: Regression occurred in 43 (3.8%), no change in 856 (76.4%), and progression in 222 (19.8%) patients. Younger age, high grades of stenosis, absence of discrete white areas in the plaque, and taking lipid lowering therapy were independent baseline predictors of increased incidence of regression. High serum creatinine, male gender, not taking lipid lowering therapy, low grades of stenosis, and increased plaque area were independent baseline predictors of progression. One hundred and thirty first ipsilateral cerebral or retinal ischemic events, including 59 strokes, occurred. Forty (67.8%) of the strokes occurred in patients whose stenosis was unchanged, 19 (32.2%) in those with progression, and zero in those with regression. For the entire cohort, the 8-year cumulative ipsilateral cerebral ischemic stroke rate was zero in patients with regression, 9% if the stenosis was unchanged, and 16% if there was progression (average annual stroke rates of 0%, 1.1%, and 2.0%, respectively; log-rank, P = .05; relative risk in patients with progression, 1.92; 95% confidence interval, 1.14-3.25). For patients with baseline stenosis 70% to 99% in relation to the distal internal carotid (North American Symptomatic Carotid Endarterectomy Trial [NASCET] method), in the absence of progression (n = 349), the 8-year cumulative ipsilateral cerebral ischemic stroke rate was 12%. In the presence of progression (n = 77), it was 21% (average annual stroke rates of 1.5% and 2.6%, respectively; log-rank, P = .34). Only nine (30%) of the 30 strokes occurred in the progression group.CONCLUSIONS: Progressive asymptomatic carotid stenosis identified a subgroup with about twice the risk of ipsilateral stroke compared with those without progression. However, the clinical value of screening for progression simply for selecting patients for carotid procedures is limited because of the low frequency of progression and its relatively low associated stroke rate. The cost effectiveness of screening for change in stenosis severity to better direct current optimal medical treatment needs testing.

Published
2014
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32. Guidance for the Management of Patients with Vascular Disease or Cardiovascular Risk Factors and COVID-19: Position Paper from VAS-European Independent Foundation in Angiology/Vascular Medicine

Author

Gerotziafas, Grigoris T., Catalano, Mariella, Colgan, Mary-Paula, Pecsvarady, Zsolt, Wautrecht, Jean Claude, Fazeli, Bahare, Olinic, Dan-Mircea, Farkas, Katalin, Elalamy, Ismail, Falanga, Anna, Fareed, Jawed, Papageorgiou, Chryssa, Arellano, Rosella S., Agathagelou, Petros, Antic, Darco, Auad, Luciana, Banfic, Ljiljana, Bartolomew, John R., Benczur, Bela, Bernardo, Melissa B., Boccardo, Francesco, Cifkova, Renate, Cosmi, Benilde, De Marchi, Sergio, Dimakakos, Evangelos, Dimopoulos, Meletios A., Dimitrov, Gabriel, Durand-Zaleski, Isabelle, Edmonds, Michael, El Nazar, Essam Abo, Erer, Dilek, Esponda, Omar L., Gresele, Paolo, Gschwandtner, Michael, Gu, Yongquan, Heinzmann, Mónica, Hamburg, Naomi M., Hamadé, Amer, Jatoi, Noor-Ahmed, Karahan, Oguz, Karetova, Debora, Karplus, Thomas, Klein-Weigel, Peter, Kolossvary, Endre, Kozak, Matija, Lefkou, Eleftheria, Lessiani, Gianfranco, Liew, Aaron, Marcoccia, Antonella, Marshang, Peter, Marakomichelakis, George, Matuska, Jiri, Moraglia, Luc, Pillon, Sergio, Poredos, Pavel, Prior, Manlio, Salvador, David Raymund K., Schlager, Oliver, Schernthaner, Gerit, Sieron, Alexander, Spaak, Jonas, Spyropoulos, Alex, Sprynger, Muriel, Suput, Dusan, Stanek, Agata, Stvrtinova, Viera, Szuba, Andrzej, Tafur, Alfonso, Vandreden, Patrick, Vardas, Panagiotis E., Vasic, Dragan, Vikkula, Miikka, Wennberg, Paul, and Zhai, Zhenguo

Published
2020
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33. Pharmacological Agents Targeting Thromboinflammation in COVID-19: Review and Implications for Future Research

Author

Bikdeli, Behnood, Madhavan, Mahesh V., Gupta, Aakriti, Jimenez, David, Burton, John R., Der Nigoghossian, Caroline, Chuich, Taylor, Nouri, Shayan Nabavi, Dreyfus, Isaac, Driggin, Elissa, Sethi, Sanjum, Sehgal, Kartik, Chatterjee, Saurav, Ageno, Walter, Madjid, Mohammad, Guo, Yutao, Tang, Liang V., Hu, Yu, Bertoletti, Laurent, Giri, Jay, Cushman, Mary, Quéré, Isabelle, Dimakakos, Evangelos P., Gibson, C. Michael, Lippi, Giuseppe, Favaloro, Emmanuel J., Fareed, Jawed, Tafur, Alfonso J., Francese, Dominic P., Batra, Jaya, Falanga, Anna, Clerkin, Kevin J., Uriel, Nir, Kirtane, Ajay, McLintock, Claire, Hunt, Beverley J., Spyropoulos, Alex C., Barnes, Geoffrey D., Eikelboom, John W., Weinberg, Ido, Schulman, Sam, Carrier, Marc, Piazza, Gregory, Beckman, Joshua A., Leon, Martin B., Stone, Gregg W., Rosenkranz, Stephan, Goldhaber, Samuel Z., Parikh, Sahil A., Monreal, Manuel, Krumholz, Harlan M., Konstantinides, Stavros V., Weitz, Jeffrey I., and Lip, Gregory Y. H.

Published
2020
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35. Silent embolic infarcts on computed tomography brain scans and risk of ipsilateral hemispheric events in patients with asymptomatic internal carotid artery stenosis

Author

Kakkos, S, Sabetai, M, Tegos, T, Stevens, J, Thomas, D, Griffin, M, Geroulakos, G, Nicolaides, A, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkaukas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, BIASI, GIORGIO MARIA, MINGAZZINI, PAOLO, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, DeRango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopoulos, E, Andreadis, A, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardile, T, Salerno, M, Fernandes, J, Pedro, L, Fitzgerald, D, O'Shaunnersy, A, Fletcher, J, Forconi, S, Capelli, R, Bicchi, M, Arrigucci, S, Gallai, V, Cardaiolli, G, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Giannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, McCollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Norgren, L, Ribbe, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, P, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Finocchi, C, Rodriguez, G, Spartera, C, Ventura, M, Scarpelli, P, Sprynger, M, Sadzot, B, Hottermans, C, Moonenbj, n, Taylor, P, Tovar Pardo, A, Negreira, J, Vayssairat, M, Faintuch, J, Valaikiene, J, Walker, M, Wilkinson, A., Kakkos, S, Sabetai, M, Tegos, T, Stevens, J, Thomas, D, Griffin, M, Geroulakos, G, Nicolaides, A, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkaukas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopoulos, E, Andreadis, A, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardile, T, Salerno, M, Fernandes, J, Pedro, L, Fitzgerald, D, O'Shaunnersy, A, Fletcher, J, Forconi, S, Capelli, R, Bicchi, M, Arrigucci, S, Gallai, V, Cardaiolli, G, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Giannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Norgren, L, Ribbe, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, P, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Finocchi, C, Rodriguez, G, Spartera, C, Ventura, M, Scarpelli, P, Sprynger, M, Sadzot, B, Hottermans, C, Moonenbj, N, Taylor, P, Tovar Pardo, A, Negreira, J, Vayssairat, M, Faintuch, J, Valaikiene, J, Walker, M, and Wilkinson, A

Subjects
Male, medicine.medical_specialty, Time Factors, medicine.medical_treatment, internal carotid artery, Carotid endarterectomy, Kaplan-Meier Estimate, brain embolism, Asymptomatic, Risk Assessment, Central nervous system disease, Duplex scanning, Predictive Value of Tests, MED/22 - CHIRURGIA VASCOLARE, medicine, Humans, Carotid Stenosis, brain infarction, cardiovascular diseases, Prospective Studies, Stroke, Aged, Proportional Hazards Models, Ultrasonography, Doppler, Duplex, Cerebral infarction, business.industry, Amaurosis fugax, Cerebral Infarction, medicine.disease, major clinical study, neurologic disease, Stenosis, multicenter study, Intracranial Embolism, Ischemic Attack, Transient, transient ischemic attack, Disease Progression, carotid artery obstruction, Surgery, Female, Radiology, medicine.symptom, business, Cardiology and Cardiovascular Medicine, Tomography, X-Ray Computed, Carotid Artery, Internal, prospective study
Abstract

Udgivelsesdato: 2009-Apr OBJECTIVES: This study tested the hypothesis that silent embolic infarcts on computed tomography (CT) brain scans can predict ipsilateral neurologic hemispheric events and stroke in patients with asymptomatic internal carotid artery stenosis. METHODS: In a prospective multicenter natural history study, 821 patients with asymptomatic carotid stenosis graded with duplex scanning who had CT brain scans were monitored every 6 months for a maximum of 8 years. Duplex scans were reported centrally, and stenosis was expressed as a percentage in relation to the normal distal internal carotid criteria used by the North American Symptomatic Carotid Endarterectomy Trialists. CT brain scans were reported centrally by a neuroradiologist. In 146 patients (17.8%), 8 large cortical, 15 small cortical, 72 discrete subcortical, and 51 basal ganglia ipsilateral infarcts were present; these were considered likely to be embolic and were classified as such. Other infarct types, lacunes (n = 15), watershed (n = 9), and the presence of diffuse white matter changes (n = 95) were not considered to be embolic. RESULTS: During a mean follow-up of 44.6 months (range, 6 months-8 years), 102 ipsilateral hemispheric neurologic events (amaurosis fugax in 16, 38 transient ischemic attacks [TIAs], and 47 strokes) occurred, 138 patients died, and 24 were lost to follow-up. In 462 patients with 60% to 99% stenosis, the cumulative event-free rate at 8 years was 0.81 (2.4% annual event rate) when embolic infarcts were absent and 0.63 (4.6% annual event rate) when present (log-rank P = .032). In 359 patients with

Published
2008
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36. The size of juxtaluminal hypoechoic area in ultrasound images of asymptomatic carotid plaques predicts the occurrence of stroke

Author

Kakkos, Sk, Griffin, Mb, Nicolaides, An, Kyriacou, E, Sabetai, Mm, Tegos, T, Makris, Gc, Thomas, Dj, Geroulakos, G, Asymptomatic Carotid Stenosis, Risk of Stroke Study Group, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkauskas, E, Barros, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopoulos, E, Andreadis, E, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardile, A, Aloi, T, Salerno, M, Fernandes, J, Pedro, L, Fitzgerald, D, O'Shaughnessy, A, Fletcher, J, Forconi, S, Cappeli, R, Bicchi, M, Arrigucci, S, Gallai, V, Cardaiolli, G, Kakkos, S, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Giannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Nicolaides, A, Thomas, D, Norgren, L, Ribbe, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, Pietro, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Schroeder, T, Gronholdt, M, Finocchi, C, Rodriguez, G, Spartera, C, Ventura, M, Scarpelli, P, Sprynger, M, Sadzot, B, Hottermans, C, Moonen, M, Taylor, P, Tovar Pardo, A, Negreira, J, Vayssairat, M, Faintuch, J, Valaikiené, J, Walker, M, Wilkinson, R., Stavros K., Kakko, Maura B., Griffin, Andrew N., Nicolaide, Efthyvoulos, Kyriacou, Michael M., Sabetai, Thomas, Tego, Gregory C., Makri, Dafydd J., Thoma, George, Geroulako, Asymptomatic Carotid, Stenosi, Risk of Stroke Study, Group, Adovasio, Roberto, Kakkos, SK, Griffin, MB, Nicolaides, AN, Kyriacou, E, Sabetai, MM, Tegos, T, Makris, GC, Thomas, DJ, Geroulakos, G, and Novo, s

Subjects
Asymptomatic carotid plaque, Male, Time Factors, medicine.medical_treatment, Carotid endarterectomy, Kaplan-Meier Estimate, Severity of Illness Index, asymptomatic carotid artery stenosis, hypoecoic area, Stroke, Risk Factors, Carotid Stenosis, Ultrasonography, Doppler, Color, Prospective cohort study, Aged, 80 and over, Neovascularization, Pathologic, Middle Aged, Prognosis, Plaque, Atherosclerotic, Europe, Ischemic Attack, Transient, Predictive value of tests, Female, Radiology, medicine.symptom, juxtaluminal hypoechoic area, ultrasound images, asymptomatic carotid plaques, stroke, Cardiology and Cardiovascular Medicine, Carotid Artery, Internal, Adult, medicine.medical_specialty, Asymptomatic, Risk Assessment, Brain ischemia, Echography, Predictive Value of Tests, asymptomatic carotid artery stenosi, medicine, Humans, cardiovascular diseases, Aged, Proportional Hazards Models, business.industry, Proportional hazards model, medicine.disease, Acoustic shadow, Settore MED/11 - Malattie Dell'Apparato Cardiovascolare, Stenosis, ROC Curve, Asymptomatic Diseases, Linear Models, Surgery, business, Follow-Up Studies
Abstract

OBJECTIVE: To test the hypothesis that the size of a juxtaluminal black (hypoechoic) area (JBA) in ultrasound images of asymptomatic carotid artery plaques predicts future ipsilateral ischemic stroke. METHODS: A JBA was defined as an area of pixels with a grayscale value 10 mm(2) (P < .001). In a Cox model with ipsilateral ischemic events (amaurosis fugax, transient ischemic attack [TIA], or stroke) as the dependent variable, the JBA (8 mm(2)) was still significant after adjusting for other plaque features known to be associated with increased risk, including stenosis, grayscale median, presence of discrete white areas without acoustic shadowing indicating neovascularization, plaque area, and history of contralateral TIA or stroke. Plaque area and grayscale median were not significant. Using the significant variables (stenosis, discrete white areas without acoustic shadowing, JBA, and history of contralateral TIA or stroke), this model predicted the annual risk of stroke for each patient (range, 0.1%-10.0%). The average annual stroke risk was

Published
2013
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37. The Significance of Chlamydia pneumoniae in Symptomatic Carotid Stenosis

Author

Kouskouni, Evangelia, Kolokotronis, Ludovikos, Rizos, D., and Dimakakos, P.

Subjects
Arteries -- Stenosis, Comorbidity -- Analysis -- Development and progression -- Complications and side effects, Chlamydia infections -- Complications and side effects -- Development and progression -- Analysis, Carotid artery diseases -- Development and progression -- Complications and side effects -- Analysis, Health
Abstract

Constantin Katsenis [*] Evangelia Kouskouni [+] Ludovikos Kolokotronis [*] D. Rizos [++] P. Dimakakos [*] An association between symptomatic carotid stenosis and recent infection with Chlamydia pneumoniae is reported. Thirty-five [...]

Published
2001

39. Abdominal aortic aneurysm with ectopic renal artery origins: A case report

Author

Kotsis, T. Mylonas, S. Katsenis, K. Arapoglou, V. Dimakakos, P.

Subjects
cardiovascular system
Abstract

The coexistense of an abdominal aortic aneurysm with ectopic main renal vasculature complicates aortic surgery and mandates a focused imaging evaluation and a carefully planned operation to minimize renal ischemia. We present the case of a 75-year-old man with an abdominal aortic aneurysm and a right kidney with two ectopic main renal arteries, one originating from the aneurysmal distal aorta and the other from the right common iliac artery; the patient underwent a surgical repair and followed an uneventful course with no deterioration of renal function. The preoperative and intraoperative details are reported, along with a review of the literature. © 2007 Sage Publications.

Published
2007

40. Ischemic preconditioning versus intermittent vascular inflow control during major liver resection in pigs

Author

Smyrniotis, V Kostopanagiotou, G Theodoraki, K Farantos, C and Arkadopoulos, N Gamaletsos, E Condi-Paphitis, A and Fotopoulos, A Dimakakos, P

Abstract

Ischemic preconditioning (IPC) and intermittent vascular control (IVC) have been shown to reduce the number of ischemia/reperfusion injuries during liver resections with the Pringle maneuver. Our study aimed to compare the beneficial effect of these two modalities in relation to the duration of normothermic liver ischemia. A group of 24 Landrace pigs with a mean body weight of 25 to 30 kg were subjected to extended liver resection of more than 65%. Although, 12 animals underwent IPC (10 minutes of ischemia and 10 minutes of reperfusion), and subsequently the Pringle maneuver was applied for 90 minutes (n= 6) or 120 minutes (n= 6). Another 12 animals underwent liver resection by IVC (20 minutes of ischemia alternated with 5 minutes of reperfusion) for 60 minutes (n = 6) or 120 minutes (n = 6) of inflow vascular control. At 90 minutes of liver ischemia, the IPC group demonstrated lower levels of asportate aminotransferase (AST) (173 +/- 53 vs. 265 +/- 106 IU; p =0.089) and malondialdehyde (NIDA) (2.60 +/- 1.03 vs. 5.33 +/- 2.25 mu mol/L; p =0.022) and higher liver tissue cAMP (200 +/- 42 vs. 146 +/- 40 pmol/g wet wt, p = 0.04) compared to the IVC group. However, no pathologic differences were observed between the two groups. By contrast, at 120 minutes of liver ischemia, IVC proved to be more beneficial, reflected by lower levels of AST (448 +/- 135 vs. 857 +/- 268 IU; p = 0.006) and MDA (8.33 +/- 1.75 vs. 12.7 +/- 4.31 mu mol/L; (p = 0.045), a higher cAMP level (127 +/- 10 vs. 97 31 pmol/g wet wt p = 0.045), and eventually less cellular necrosis (necrosis score 1.66 +/- 0.51 vs. 2.85 +/- 1.16; p = 0.04) compared to the IPC group. It appears that IPC should be employed when liver ischemia is anticipated to last less than 90 minutes, followed by IVC when the liver ischemia is expected to last 120 minutes.

Published
2005

43. Renal artery stenting for renal insufficiency in solitary kidney in 26 patients

Author

Chatziioannou, A Mourikis, D Agroyannis, B Katsenis, K and Pneumaticos, S Antoniou, A Dimakakos, P Vlachos, L

Subjects
urologic and male genital diseases
Abstract

Objective: to present our experience with stent placement in renal arteries in solitary kidneys for treating renal insufficiency Design: retrospective analysis. Materials: in 26 patients With solitary kidney (17 men, 9 women, Mean age: 63 years), presented with renal insufficiency (se-creat >0.144 mmol/l), stent was placed in a stenosed renal artery. We analysed the clinical outcome, based on the level of creatinine at 3 months following the procedure. Clinical benefit was considered when there was a decrease compared to the baseline creatinine by >20% or a stabilisation of the creatinine value (+/-20% of the baseline). Results: in 16 of the 26 patients (62%), clinical benefit Teas achieved. However, 38% of the study population, renal function continued to deteriorate. Baseline creatinine value was the single best predictor for clinical benefit achievement (odds ratio: 13; 95% confidence intervals: 1.6-107, p=0.01). Conclusion: renal stenting results in improvement or stabilisation of renal function in the majority of the patients with solitary kidneys and renal artery stenosis, presenting with renal insufficiency. Because best outcome was observed mainly in those patients with not progressed renal insufficiency, intervention should be focused oil that group.

Published
2002

44. Transrenal aortic endograft placement in patients with renal artery disorders

Author

Chatziioannou, A. Agroyannis, B. Mourikis, D. Katsenis, K. Dimakakos, P. Vlachos, L.

Subjects
cardiovascular system, cardiovascular diseases
Abstract

Endovascular repair of abdominal aortic aneurysms (AAA) is an alternative to conventional surgical aortic reconstruction. However the presence of renal artery stenosis (RAS) and/or accessory renal arteries may alter the endovascular approach in these cases. We present two cases with infrarenal aneurysms and a coexisting unilateral renal artery stenosis (first case) and accessory renal artery (second case). In both patients endovascular treatment was undertaken. In the first patient a stent was placed for the RAS and an aortic endograft with suprarenal fixation for the aneurysm. In the second patient the placement of an aortic endograft with suprarenal fixation occluded the accessory renal artery. In the first patient renal function was normal pre- and post-intervention. In the second patient, renal function was normal pre-intervention but showed a slight deterioration postoperatively, returning to normal after 10 days. Both patients were normotensive pre- and post-intervention. In conclusion, RAS and AAA may be treated by the placement of a stent and a stent-graft simultaneously. During endovascular repair of AAA, a significant accessory renal artery (around 3 mm in diameter) may safely be excluded in patients with otherwise normal renal function. © 2003 Elsevier Science Ltd. All rights reserved.

Published
2002

45. The significance of Chlamydia pneumoniae in symptomatic carotid stenosis

Author

Katsenis, C Kouskouni, E Kolokotronis, L Rizos, D and Dimakakos, P

Abstract

An association between symptomatic carotid stenosis and recent infection with Chlamydia pneumoniae is reported. Thirty-five patients (20 symptomatic and 15 asymptomatic) with carotid stenosis of 70% to 90% underwent carotid endarterectomy. Endarterectomy was performed without patch and shunt; the average occlusion time of the internal carotid artery was 14 +/- 3 min. The atheromatic plaque and a portion of the thyroid artery were examined with polymerase chain reaction and peripheral vein blood was obtained for serologic detection of systematic infection, and IgG and IgM antibodies to C. pneumoniae by enzyme-linked immunosorbent assay. Twenty of 35 patients (57.1%) had increased titers of IgG antibodies to C pneumoniae. Eight patients revealed IgG plus IgM antibodies; two of the eight had IgG, IgM, and positive findings on polymerase chain reaction. No C pneumoniae was detected on the thyroid arteries. Sixty-five percent (13/20) of the patients with increased IgG antibodies to C pneumoniae, 87.5% (7/8) with IgG + IgM, and 100% with IgG + IgM + positive polymerase chain reaction were symptomatic. Plaque morphology in association with symptoms did not reveal a significant correlation between soft plaques and symptoms, whereas the majority of the symptomatic patients had plaques of type III-V. Patients having recent contamination and positive polymerase chain reaction had a significant relationship between C pneumoniae infection and symptomatic carotid disease. This supports the hypothesis that C pneumoniae infection can produce a kind of instability of the carotid plaque. The results of this study demonstrate that patients with advanced atherosclerotic carotid disease have an increased incidence of C pneumoniae infection. Recent infection could be responsible for instability of the carotid plaque, causing cerebral ischemic episodes.

Published
2001

47. Asymptomatic internal carotid artery stenosis and cerebrovascular risk stratification

Author

Nicolaides, A, Kakkos, S, Kyriacou, E, Griffin, M, Sabetai, M, Thomas, D, Tegos, T, Geroulakos, G, Labropoulos, N, Dor, C, Morris, T, Naylor, R, Abbott, A, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkauskas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopoulos, E, Andreadis, E, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardileah, N, Aloi, T, Salerno, M, Fernandes, J, Pedro, L, Fitzgerald, D, O'Shaunnersy, A, Fletcher, J, Forconi, S, Cappeli, R, Bicchi, M, Arrigucci, S, Gallai, V, Cardaiolli, G, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Giannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Norgren, L, Ribbe, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, P, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Schroeder, T, Gronholdt, M, Finocchi, C, Rodriguez, G, Spartera, C, Ventura, M, Scarpelli, P, Sprynger, M, Sadzot, B, Hottermans, C, Moonenbp, N, Taylor, P, Tovar Pardo, A, Negreira, J, Vayssairat, M, Faintuch, J, Valaikiené, J, Walker, M, Wilkinson, A, BIASI, GIORGIO MARIA, MINGAZZINI, PAOLO, DeRango, P, Ferrari Bardileah, n, McCollum, P, Moonenbp, n, Wilkinson, A., Nicolaides, A, Kakkos, S, Kyriacou, E, Griffin, M, Sabetai, M, Thomas, D, Tegos, T, Geroulakos, G, Labropoulos, N, Dor, C, Morris, T, Naylor, R, Abbott, A, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkauskas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopoulos, E, Andreadis, E, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardileah, N, Aloi, T, Salerno, M, Fernandes, J, Pedro, L, Fitzgerald, D, O'Shaunnersy, A, Fletcher, J, Forconi, S, Cappeli, R, Bicchi, M, Arrigucci, S, Gallai, V, Cardaiolli, G, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Giannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Norgren, L, Ribbe, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, P, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Schroeder, T, Gronholdt, M, Finocchi, C, Rodriguez, G, Spartera, C, Ventura, M, Scarpelli, P, Sprynger, M, Sadzot, B, Hottermans, C, Moonenbp, N, Taylor, P, Tovar Pardo, A, Negreira, J, Vayssairat, M, Faintuch, J, Valaikiené, J, Walker, M, Wilkinson, A, BIASI, GIORGIO MARIA, MINGAZZINI, PAOLO, DeRango, P, Ferrari Bardileah, n, McCollum, P, Moonenbp, n, and Wilkinson, A.

Abstract

Background: The purpose of this study was to determine the cerebrovascular risk stratification potential of baseline degree of stenosis, clinical features, and ultrasonic plaque characteristics in patients with asymptomatic internal carotid artery (ICA) stenosis. Methods: This was a prospective, multicenter, cohort study of patients undergoing medical intervention for vascular disease. Hazard ratios for ICA stenosis, clinical features, and plaque texture features associated with ipsilateral cerebrovascular or retinal ischemic (CORI) events were calculated using proportional hazards models. Results: A total of 1121 patients with 50% to 99% asymptomatic ICA stenosis in relation to the bulb (European Carotid Surgery Trial [ECST] method) were followed-up for 6 to 96 months (mean, 48). A total of 130 ipsilateral CORI events occurred. Severity of stenosis, age, systolic blood pressure, increased serum creatinine, smoking history of more than 10 pack-years, history of contralateral transient ischemic attacks (TIAs) or stroke, low grayscale median (GSM), increased plaque area, plaque types 1, 2, and 3, and the presence of discrete white areas (DWAs) without acoustic shadowing were associated with increased risk. Receiver operating characteristic (ROC) curves were constructed for predicted risk versus observed CORI events as a measure of model validity. The areas under the ROC curves for a model of stenosis alone, a model of stenosis combined with clinical features and a model of stenosis combined with clinical, and plaque features were 0.59 (95% confidence interval [CI] 0.54-0.64), 0.66 (0.62-0.72), and 0.82 (0.78-0.86), respectively. In the last model, stenosis, history of contralateral TIAs or stroke, GSM, plaque area, and DWAs were independent predictors of ipsilateral CORI events. Combinations of these could stratify patients into different levels of risk for ipsilateral CORI and stroke, with predicted risk close to observed risk. Of the 923 patients with <70% stenos

Published
2010

48. Silent embolic infarcts on computed tomography brain scans and risk of ipsilateral hemispheric events in patients with asymptomatic internal carotid artery stenosis

Author

Kakkos, S, Sabetai, M, Tegos, T, Stevens, J, Thomas, D, Griffin, M, Geroulakos, G, Nicolaides, A, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkaukas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopoulos, E, Andreadis, A, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardile, T, Salerno, M, Fernandes, J, Pedro, L, Fitzgerald, D, O'Shaunnersy, A, Fletcher, J, Forconi, S, Capelli, R, Bicchi, M, Arrigucci, S, Gallai, V, Cardaiolli, G, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Giannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Norgren, L, Ribbe, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, P, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Finocchi, C, Rodriguez, G, Spartera, C, Ventura, M, Scarpelli, P, Sprynger, M, Sadzot, B, Hottermans, C, Moonenbj, N, Taylor, P, Tovar Pardo, A, Negreira, J, Vayssairat, M, Faintuch, J, Valaikiene, J, Walker, M, Wilkinson, A, BIASI, GIORGIO MARIA, MINGAZZINI, PAOLO, DeRango, P, McCollum, P, Moonenbj, n, Wilkinson, A., Kakkos, S, Sabetai, M, Tegos, T, Stevens, J, Thomas, D, Griffin, M, Geroulakos, G, Nicolaides, A, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkaukas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopoulos, E, Andreadis, A, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardile, T, Salerno, M, Fernandes, J, Pedro, L, Fitzgerald, D, O'Shaunnersy, A, Fletcher, J, Forconi, S, Capelli, R, Bicchi, M, Arrigucci, S, Gallai, V, Cardaiolli, G, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Giannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, Tyllis, T, Minar, E, Willfort, A, Moggi, L, Nenci, G, Radicchia, S, Norgren, L, Ribbe, E, Novo, S, Tantillo, R, Olinic, D, Paaske, W, Pagnan, A, Pauletto, P, Pagliara, V, Pettina, G, Pratesi, C, Matticari, S, Polivka, J, Sevcik, P, Poredos, P, Blinc, A, Videcnik, V, Pujia, A, Raso, A, Rispoli, P, Conforti, M, Robinson, T, Dennis, M, Rosfors, S, Rudofsky, G, Finocchi, C, Rodriguez, G, Spartera, C, Ventura, M, Scarpelli, P, Sprynger, M, Sadzot, B, Hottermans, C, Moonenbj, N, Taylor, P, Tovar Pardo, A, Negreira, J, Vayssairat, M, Faintuch, J, Valaikiene, J, Walker, M, Wilkinson, A, BIASI, GIORGIO MARIA, MINGAZZINI, PAOLO, DeRango, P, McCollum, P, Moonenbj, n, and Wilkinson, A.

Abstract

Objectives: This study tested the hypothesis that silerit embolic infarcts on computed tomography (CT) brain scans can predict ipsilateral neurologic hemispheric events and stroke in patients with asymptomatic internal carotid artery stenosis. Methods: In a prospective multicenter natural history study, 821 patients with asymptomatic carotid stenosis graded with duplex scanning who had CT brain scans were monitored every 6 months for a maximum of 8 years. Duplex scans were reported centrally, and stenosis was expressed as a percentage in relation to the normal distal internal carotid criteria used by the North American Symptomatic Carotid Endarterectomy Trialists. CT brain scans were reported centrally by a neuroradiologist. In 146 patients (17.8%), 8 large cortical, 15 small cortical, 72 discrete subcortical, and 51 basal ganglia ipsilateral infarcts were present; these were considered likely to be embolic and were classified as such. Other infarct types, lacunes (n = 15), watershed (n = 9), and the presence of diffuse white matter changes (n = 95) were not considered to be embolic. Results: During a mean follow-up of 44.6 months (range, 6 months-8 years), 102 ipsilateral hemispheric neurologic events (amaurosis fugax in 16, 38 transient ischemic attacks [TIAs], and 47 strokes) occurred, 138 patients died, and 24 were lost to follow-up. In 462 patients with 60% to 99% stenosis, the cumulative event-free rate at 8 years was 0.81 (2.4% annual event rate) when embolic infarcts were absent and 0.63 (4.6% annual event rate) when present (log-rank P = .032). In 359 patients with <60% stenosis, embolic infarcts were not associated with increased risk (log-rank P = .65). In patients with 60% to 99% stenosis, the cumulative stroke-free rate was 0.92 (1.0% annual stroke rate) when embolic infarcts were absent and 0.71 (3.6% annual stroke rate) when present (log-rank P = .002). In the subgroup of 216 with moderate 60% to 79% stenosis, the cumulative TIA or stroke-free rate

Published
2009

49. Investigation of laboratory parameters in primary Raynaud's phenomenon: Their changes and clinical significance

Author

Dalamanga, A Dimakakos, P KostoglouPapalambrou, M and Papageorgiou, A DaveaMela, F Rizos, D

Abstract

The authors investigated 125 patients suffering from primary Raynaud’s phenomenon by the following laboratory hematologic parameters: (1) cryofibrinogen and cryoglobulins; (2) serum albumins and immunoglobulins IgG, IgA, and IgM, as well as complement factors C3 and C4; (3) clotting inhibitors, antithrombin III, protein C and protein S, as well as alpha(1) antitrypsin. Results were as follows: 77 (62%) patients had cryofibrinogen in their blood plasma, 50 (40%) patients had precipitation of cryoglobulins, and 65 (52%) patients had an increase of alpha(2) globulin in the serum electrophoresis. Of the immunoglobulins, IgM was found increased in 42 patients (34%). Of the clotting time inhibitors, antithrombin III CAT III) had a lower activity in 50 (40%) patients as compared with that of normal subjects. Protein C, protein S, and alpha(1) antitrypsin levels were lower in 21 (16.8%), 13 (10.4%), and 10 (8%) of patients, respectively. Statistical analysis of the results showed that all the protein fractions except for gamma-globulin presented a statistically significant difference as compared with those of the controls (P < 0.0001). Immunoglobulins IgG and IgA of the patients were significantly lower than those of the normal controls (P < 0.001). The C3 and C4 factors of the complement presented statistically significant lower values (P < 0.001 and P < 0.0001 respectively). Finally, AT III appeared in lower values than those of the normal controls, being statistically significant (P < 0.0001). These results suggest that patients with primary Raynaud’s phenomenon present changes in the levels of certain hematologic parameters, a fact that is probably connected with etiology. Thus further study and assessment might contribute to the diagnosis, discovery of the subjective systemic etiology, and better therapeutic management of Raynaud’s phenomenon.

Published
1997

50. Factors associated with mortality in patients with asymptomatic carotid stenosis: Results from the ACSRS study

Author

Kakkos, S, Nicolaides, A, Griffin, M, Sabetai, M, Dhanjil, S, Thomas, D, Sonecha, T, Salmasi, A, Geroulakos, G, Georgiou, N, Francis, S, Ioannidou, E, Dore, C, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkauskas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopolous, E, Andreadis, E, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardilead, N, Aloi, T, Salerno, M, Fernandez, J, Pedro, L, Fitzgerald, D, O'Shaunnersy, A, Fletcher, J, Forconi, S, Cappeli, R, Bicchi, M, Arigucci, S, Gallai, V, Cardaiolli, G, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Glannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, DeRango, P, Ferrari Bardilead, n, McCollum, P, Pantziaris, M., BIASI, GIORGIO MARIA, MINGAZZINI, PAOLO, Kakkos, S, Nicolaides, A, Griffin, M, Sabetai, M, Dhanjil, S, Thomas, D, Sonecha, T, Salmasi, A, Geroulakos, G, Georgiou, N, Francis, S, Ioannidou, E, Dore, C, Adovasio, R, Ziani, B, Alò, F, Cicilioni, C, Ambrosio, G, Andreev, A, Andreozzi, G, Verlato, F, Camporese, G, Arosio, E, Barkauskas, E, Barros D'Sa, A, Brannigan, P, Batchvarova, V, Dramov, A, Belardi, P, Novelli, G, Simoni, G, Bell, P, Biasi, G, Mingazzini, P, Bornstein, N, Bouchier Hayes, D, Fitzgerald, P, Cairols, M, Cao, P, Derango, P, Carboni, G, Geoffredo, C, Catalano, M, Chambers, B, Goetzmann, M, Dickinson, A, Clement, D, Bobelyn, M, Coccheri, S, Conti, E, Diamantopolous, E, Andreadis, E, Dimakakos, P, Kotsis, T, Eikelboom, B, Entz, L, Ferrari Bardilead, N, Aloi, T, Salerno, M, Fernandez, J, Pedro, L, Fitzgerald, D, O'Shaunnersy, A, Fletcher, J, Forconi, S, Cappeli, R, Bicchi, M, Arigucci, S, Gallai, V, Cardaiolli, G, Gomez Isaza, L, Gorgoyannis, G, Liasis, N, Graf, M, Guarini, P, Hardy, S, Harris, P, Aston, S, Iosa, G, Katsamouris, A, Glannoukas, A, Krzanowski, M, Ladurner, G, Leal Monedero, J, Lee, B, Liapis, C, Galanis, P, Liboni, W, Pavanelli, E, Mannarino, E, Vaudo, G, Mccollum, P, Levison, R, Micieli, G, Bosone, D, Middleton, L, Pantziaris, M, DeRango, P, Ferrari Bardilead, n, McCollum, P, Pantziaris, M., BIASI, GIORGIO MARIA, and MINGAZZINI, PAOLO

Abstract

Aim. This study determines the factors associated with mortality in patients with asymptomatic carotid stenosis. Methods. Patients (n=1 101) with asymptomatic internal carotid artery stenosis greater than 50% in relation to the bulb diameter were followed up for a period of 6 to 84 (median 38) months. Stenosis was graded using duplex scanning and expressed as a percentage of the carotid bulb diameter. Clinical and biochemical risk factors were recorded. The end-points were ipsilateral ischemic stroke, cardiovascular death and all cause mortality. Results. In a Cox multivariate analysis 6 factors emerged as independent predictors of risk. Age, male gender, cardiac failure, left ventricular hypertrophy on electrocardiogram (ECG) and myocardial ischemia on ECG were associated with increased risk. Antiplatelet therapy was associated with decreased risk. Based on these risk factors a high-risk group consisting of one third of the population with a 40% cumulative cardiovascular death rate and a 66% all cause death rate at 7 years could be identified. The remaining 2/3 consisted of a low-risk group with a 10% cumulative cardiovascular death rate and a 21% all cause death rate at 7 years (P<0.0001 compared to the high risk group). There was not any significant difference in the cumulative ipsilateral stroke rate, which was 12% in the low and 13% in the high cardiovascular risk group (Log Rank P>0.05). Conclusion. The methodology and findings from the ACSRS natural history study need to be applied to randomized controlled trials on the value of carotid endarterectomy or stenting in patients with asymptomatic carotid stenosis. They may help refine the indications for intervention in patients with carotid endarterectomy.

Published
2005

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