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Dimou MV, Xepapadaki P, Lakoumentas J, Mageiros L, Aggelidis X, Antonopoulou M, Bakakos P, Βotskariova S, Chliveros K, Chrysoulakis S, Dimas D, Douladiris N, Gaga M, Grigoreas C, Kalogiros L, Katotomichelakis M, Kompoti E, Constantinidis J, Koutsogianni Z, Loukides S, Makris M, Manousakis E, Marangoudakis P, Marmara M, Mikos N, Mitsakou P, Mitsias D, Pagalos A, Papanikolaou V, Paraskevopoulos I, Pitsios C, Psarros F, Rovina N, Samitas K, Stefanaki E, Vallianatou M, Vourdas D, Tsiligianni I, Bousquet J, Papadopoulos NG. Levels of Immunoglobulin E Sensitization Drive Symptom Thresholds in Allergic Rhinitis. Ann Allergy Asthma Immunol 2024:S1081-1206(24)00274-6. [PMID: 38679157 DOI: 10.1016/j.anai.2024.04.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/20/2024] [Accepted: 04/23/2024] [Indexed: 05/01/2024]
Abstract
BACKGROUND Allergic rhinitis (AR) is a common respiratory disease encompassing a variety of phenotypes. Patients can be sensitized to one or more allergens. There are indications that polysensitization is associated with more severe disease. However, the extent to which the level of sensitization is associated to clinical disease variability, underlying the distinct nature of AR from AR+ conjunctivitis or AR+ asthma, is not known. OBJECTIVE The aim of this study was to evaluate phenotypical differences between mono- and poly-sensitized patients with AR and to quantify their symptomatic variability. METHODS 565 patients with a confirmed diagnosis of AR were included in this cross-sectional study. 155 were mono-sensitized and 410 poly-sensitized. Interactions between sensitization levels and reporting of different symptoms of AR and co-morbidities, disease duration and impact, were assessed. Furthermore, patients were stratified into mono- oligo- and poly-sensitized to assess whether the effect of sensitization on phenotype was ranked. RESULTS Poly-sensitized patients reported significantly more often itchy eyes (p=0.001) and had higher number of ocular (p=0.005), itch-related (p=0.036) and total symptoms (p=0.007) than mono-sensitized patients. In addition, polysensitized adults and children more often reported wheeze (p=0.015) and throat-clearing (p=0.04), respectively. Polysensitization was associated with more burdensome AR according to VAS (p=0.005). Increasing sensitization level was reflected in more itchy eyes, number of ocular, itch-related and total number of symptoms, as well as disease burden. CONCLUSION With increasing number of sensitizations, AR patients experience an increased diversity of symptoms. Multimorbidity-related symptoms increase with sensitization rank, suggesting organ-specific thresholds.
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Affiliation(s)
- Maria V Dimou
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Paraskevi Xepapadaki
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - John Lakoumentas
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Leonardos Mageiros
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Xenophon Aggelidis
- "D. Kalogeromitros" Allergy Unit, 2nd Department of Dermatology and Venereology, National University of Athens Medical School, University General Hospital "Attiko", Athens, Greece
| | | | - Petros Bakakos
- 1st Department of Respiratory Medicine, Medical School, National Kapodistrian University of Athens, "Sotiria" Regional Chest Diseases Hospital, Athens, Greece
| | - Sophia Βotskariova
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | | | | | | | - Nikolaos Douladiris
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Mina Gaga
- Αsthma Center, Athens Chest Hospital, "Sotiria", Athens, Greece
| | - Christos Grigoreas
- Former President of Hellenic Society of Allergology and Clinical Immunology
| | | | | | - Evangelia Kompoti
- Department of Allergology and Clinical Immunology, "Laikon" General Hospital, Athens, Greece
| | - Jannis Constantinidis
- First Academic Otorhinolaryngology Department, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Stelios Loukides
- 2nd Respiratory Department, "Attiko" University Hospital, University of Athens Medical School, Athens, Greece
| | - Michael Makris
- "D. Kalogeromitros" Allergy Unit, 2nd Department of Dermatology and Venereology, National University of Athens Medical School, University General Hospital "Attiko", Athens, Greece
| | - Emmanouil Manousakis
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Pavlos Marangoudakis
- 2(st) Otorhinolaryngology Clinic, National University of Athens Medical School, University General Hospital "Attiko", Athens, Greece
| | | | - Nikolaos Mikos
- Department of Allergology and Clinical Immunology, "Laikon" General Hospital, Athens, Greece
| | | | - Dimitrios Mitsias
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - Aris Pagalos
- Private Otorhinolaryngologist, Agios Nikolaos, Crete
| | | | | | | | | | - Nikoletta Rovina
- 1st Department of Respiratory Medicine, Medical School, National Kapodistrian University of Athens, "Sotiria" Regional Chest Diseases Hospital, Athens, Greece
| | | | | | - Mina Vallianatou
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Ioanna Tsiligianni
- Department of Social Medicine, University of Crete, Heraklion, Crete, Greece
| | - Jean Bousquet
- Montpellier University Hospital, MACVIA-France, Contre les Maladies Chroniques pour un Vieillissement Actif en France, European Innovation Partnership on Active and Healthy Ageing Reference Site, Montpellier, France; INSERM, U1168, Ageing and Chronic Diseases Epidemiological and Public Health Approaches, 94800 Villejuif, France CHRU Arnaud de Villeneuve; MACVIA-France, Contre les Maladies Chroniques pour un Vieillissement Actif en France, European Innovation Partnership on Active and Healthy Ageing Reference Site, Montpellier, France, INSERM, U1168, Ageing and Chronic Diseases
| | - Nikolaos G Papadopoulos
- Allergy Department, 2(nd) Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece.
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Tzamourani A, Paramithiotis S, Favier M, Coulon J, Moine V, Paraskevopoulos I, Dimopoulou M. New Insights into the Production of Assyrtiko Wines from the Volcanic Terroir of Santorini Island Using Lachancea thermotolerans. Microorganisms 2024; 12:786. [PMID: 38674730 PMCID: PMC11052215 DOI: 10.3390/microorganisms12040786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Assyrtiko is a rare ancient grape variety of Greece, which is known to produce Protected Designation of Origin (PDO) Santorini white wines. Besides the famous character of the volcanic terroir, Assyrtiko of Santorini is also marked by a low pH value and sharp acidity. The aim of the present study was to apply a new inoculation procedure that modulates the fermentation process by maintaining the unique sensorial characteristics of Assyrtiko wines based on acidity. For this purpose, the Lachancea thermotolerans species, known for the formation of lactic acid, was tested in sequential fermentation with three different Saccharomyces cerevisiae strains. At the end of the fermentation process, implantation control for S. cerevisiae strains (interdelta sequence profile analysis) was performed, oenological parameters were determined according to the OIV protocols, and the volatile compounds produced were measured by gas chromatography-mass spectrometry (GC/MS). Finally, all produced wines were evaluated by quantitative descriptive analysis by two groups of experts; the Greek team of oenologists from Santorini Island specialized in Assyrtiko wines, and the French team of oenologists specialized in wine from Bordeaux. As expected, the inoculated strain was the one that dominated the fermentation process, but nine S. cerevisiae indigenous strains were also identified in the produced wines. Lachancea thermotolerans produced 1 g/L of lactic and also modulated the volatile profile of the wines independently of the S. cerevisiae strain used. The origin of the panelists played an important role in bringing up sensorial traits, such as acidity. Our results led to a new interesting application of L. thermotolerans for white wine production adapted to climate change claims.
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Affiliation(s)
- Aikaterini Tzamourani
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, 28 Ag. Spyridonos St., 12243 Egaleo, Greece
| | - Spiros Paramithiotis
- Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
| | - Marion Favier
- BioLaffort, 11 rue Aristide Bergès, 33270 Floirac, France (J.C.); (V.M.)
| | - Joana Coulon
- BioLaffort, 11 rue Aristide Bergès, 33270 Floirac, France (J.C.); (V.M.)
| | - Virginie Moine
- BioLaffort, 11 rue Aristide Bergès, 33270 Floirac, France (J.C.); (V.M.)
| | - Ioannis Paraskevopoulos
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, 28 Ag. Spyridonos St., 12243 Egaleo, Greece
- GAIA Wines, 84700 Santorini, Greece
| | - Maria Dimopoulou
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, 28 Ag. Spyridonos St., 12243 Egaleo, Greece
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Tzamourani AP, Taliadouros V, Paraskevopoulos I, Dimopoulou M. Developing a novel selection method for alcoholic fermentation starters by exploring wine yeast microbiota from Greece. Front Microbiol 2023; 14:1301325. [PMID: 38179455 PMCID: PMC10765506 DOI: 10.3389/fmicb.2023.1301325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 12/05/2023] [Indexed: 01/06/2024] Open
Abstract
The selection of native yeast for alcoholic fermentation in wine focuses on ensuring the success of the process and promoting the quality of the final product. The purpose of this study was firstly to create a large collection of new yeast isolates and categorize them based on their oenological potential. Additionally, the geographical distribution of the most dominant species, Saccharomyces cerevisiae, was further explored. Towards this direction, fourteen spontaneously fermented wines from different regions of Greece were collected for yeast typing. The yeast isolates were subjected in molecular analyses and identification at species level. RAPD (Random Amplified Polymorphic DNA) genomic fingerprinting with the oligo-nucleotide primer M13 was used, combined with Matrix Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry (MALDI-TOF MS) technique. All yeast isolates were scrutinized for their sensitivity to killer toxin, production of non-desirable metabolites such as acetic acid and H2S, β-glucosidase production and resistance to the antimicrobial agent; SO2. In parallel, S. cerevisiae isolates were typed at strain level by interdelta - PCR genomic fingerprinting. S. cerevisiae strains were examined for their fermentative capacity in laboratory scale fermentation on pasteurized grape must. Glucose and fructose consumption was monitored daily and at the final point a free sorting task was conducted to categorize the samples according to their organoleptic profile. According to our results, among the 190 isolates, S. cerevisiae was the most dominant species while some less common non-Saccharomyces species such as Trigonopsis californica, Priceomyces carsonii, Zygosaccharomyces bailii, Brettanomyces bruxellensis and Pichia manshurica were identified in minor abundancies. According to phenotypic typing, most isolates were neutral to killer toxin test and exhibited low acetic acid production. Hierarchical Cluster Analysis revealed the presence of four yeast groups based on phenotypic fingerprinting. Strain level typing reported 20 different S. cerevisiae strains from which 65% indicated fermentative capacity and led to dry wines. Sensory evaluation results clearly discriminated the produced wines and consequently, the proposed yeast categorization was confirmed. A novel approach that employs biostatistical tools for a rapid screening and classification of indigenous wine yeasts with oenological potential, allowing a more efficient preliminary selection or rejection of isolates is proposed.
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Affiliation(s)
- Aikaterini P. Tzamourani
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Athens, Greece
| | - Vasileios Taliadouros
- Department of Statistics and Insurance Science, University of Piraeus, Piraeus, Greece
| | - Ioannis Paraskevopoulos
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Athens, Greece
| | - Maria Dimopoulou
- Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Athens, Greece
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Spiliopoulos S, Festas G, Paraskevopoulos I, Mariappan M, Brountzos E. Overcoming ischemia in the diabetic foot: Minimally invasive treatment options. World J Diabetes 2021; 12:2011-2026. [PMID: 35047116 PMCID: PMC8696640 DOI: 10.4239/wjd.v12.i12.2011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 06/13/2021] [Accepted: 10/31/2021] [Indexed: 02/06/2023] Open
Abstract
As the global burden of diabetes is rapidly increasing, the incidence of diabetic foot ulcers is continuously increasing as the mean age of the world population increases and the obesity epidemic advances. A significant percentage of diabetic foot ulcers are caused by mixed micro and macro-vascular dysfunction leading to impaired perfusion of foot tissue. Left untreated, chronic limb-threatening ischemia has a poor prognosis and is correlated with limb loss and increased mortality; prompt treatment is required. In this review, the diagnostic challenges in diabetic foot disease are discussed and available data on minimally invasive treatment options such as endovascular revascularization, stem cells, and gene therapy are examined.
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Affiliation(s)
- Stavros Spiliopoulos
- Second Department of Radiology, Interventional Radiology Unit, Attikon University Hospital, Athens 12461, Greece
| | - Georgios Festas
- Second Department of Radiology, Interventional Radiology Unit, Attikon University Hospital, Athens 12461, Greece
| | - Ioannis Paraskevopoulos
- Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen AB25 2ZN, United Kingdom
| | - Martin Mariappan
- Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen AB25 2ZN, United Kingdom
| | - Elias Brountzos
- Second Department of Radiology, School of Medicine; National and Kapodistrian University of Athens, Athens 12461, Greece
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Arkoudis NA, Katsanos K, Inchingolo R, Paraskevopoulos I, Mariappan M, Spiliopoulos S. Quantifying tissue perfusion after peripheral endovascular procedures: Novel tissue perfusion endpoints to improve outcomes. World J Cardiol 2021; 13:381-398. [PMID: 34621485 PMCID: PMC8462037 DOI: 10.4330/wjc.v13.i9.381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/11/2021] [Accepted: 07/26/2021] [Indexed: 02/06/2023] Open
Abstract
Peripheral artery disease (PAD) is a flow-limiting condition caused by narrowing of the peripheral arteries typically due to atherosclerosis. It affects almost 200 million people globally with patients either being asymptomatic or presenting with claudication or critical or acute limb ischemia. PAD-affected patients display increased mortality rates, rendering their management critical. Endovascular interventions have proven crucial in PAD treatment and decreasing mortality and have significantly increased over the past years. However, for the functional assessment of the outcomes of revascularization procedures for the treatment of PAD, the same tests that have been used over the past decades are still being employed. Those only allow an indirect evaluation, while an objective quantification of limb perfusion is not feasible. Standard intraarterial angiography only demonstrates post-intervention vessel patency, hence is unable to accurately estimate actual limb perfusion and is incapable of quantifying treatment outcome. Therefore, there is a significant necessity for real-time objectively measurable procedural outcomes of limb perfusion that will allow vascular experts to intraoperatively quantify and assess outcomes, thus optimizing treatment, obviating misinterpretation, and providing significantly improved clinical results. The purpose of this review is to familiarize readers with the currently available perfusion-assessment methods and to evaluate possible prospects.
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Affiliation(s)
- Nikolaos-Achilleas Arkoudis
- 2nd Radiology Department, Interventional Radiology Unit, Attikon University General Hospital, Athens 12461, Greece
| | - Konstantinos Katsanos
- Interventional Radiology Department, Patras University Hospital, PATRAS 26441, Greece
| | - Riccardo Inchingolo
- Interventional Radiology Unit, “F. Miulli” Regional General Hospital, Acquaviva delle Fonti 70021, Italy
| | - Ioannis Paraskevopoulos
- Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen AB25 2ZN, United Kingdom
| | - Martin Mariappan
- Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen AB15 5EY, United Kingdom
| | - Stavros Spiliopoulos
- 2nd Radiology Department, Interventional Radiology Unit, School of Medicine, National and Kapodistrian University of Athens, Athens 12461, Greece
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Spiliopoulos S, Katsanos K, Paraskevopoulos I, Mariappan M, Festas G, Kitrou P, Papageorgiou C, Reppas L, Palialexis K, Karnabatidis D, Brountzos E. Multicenter retrospective study of transcatheter arterial embolisation for life-threatening haemorrhage in patients with uncorrected bleeding diathesis. CVIR Endovasc 2020; 3:95. [PMID: 33301058 PMCID: PMC7728894 DOI: 10.1186/s42155-020-00186-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/29/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND We retrospectively investigated outcomes of emergency TAE for the management of life-threatening haemorrhage in patients with uncorrected bleeding diathesis. MATERIALS AND METHODS This multicenter, retrospective, study, was designed to investigate the safety and efficacy of percutaneous TAE for the management of life-threatening haemorrhage in patients with uncorrected bleeding disorder at the time of embolization. All consecutive patients with uncorrected coagulation who underwent TAE for the treatment of haemorrhage, between January 1st and December 31th 2019 in three European centers were included. Inclusion criteria were thrombocytopenia (platelet count < 50,000/mL) and/or International Normalized Ratio (INR) ≥2.0, and/or activated partial thromboplastin time (aPTT) > 45 s, and/or a pre-existing underlying blood-clotting disorder such as factor VIII, Von Willebrand disease, hepatic cirrhosis with abnormal liver function tests. Primary outcome measures were technical success, rebleeding rate and clinical success. Secondary outcome measures included patients' 30-day survival rate, and procedure-related complications. RESULTS In total, 134 patients underwent TAE for bleeding control. A subgroup of 17 patients with 18 procedures [11 female, mean age 70.5 ± 15 years] which represent 12.7% of the total number of patients, presented with pathological coagulation parameters at the time of TAE (haemophilia n = 3, thrombocytopenia n = 1, cirrhosis n = 5, anticoagulants n = 7, secondary to bleeding n = 1) and were analyzed. Technical success was 100%, as in all procedures the bleeding site was detected and successfully embolised. Clinical success was 100%, as none of the patients died of bleeding during hospitalization, nor was surgically treated for bleeding relapse. Only one rebleeding case was noted (5.9%) that was successfully treated with a second TAE. No procedure-related complications were noted. According to Kaplan-Meier analysis the estimated 30-day survival rate was 84.2%. CONCLUSION TAE in selected patients with uncorrected bleeding diathesis should be considered as a suitable individualized management approach. Emergency TAE for life threatening haemorrhage in patients with coagulation cascade disorders should be used as an aid in realistic clinical decision making.
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Affiliation(s)
- Stavros Spiliopoulos
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
- grid.417581.e0000 0000 8678 4766Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, AB25 2ZN UK
| | - Konstantinos Katsanos
- grid.412458.eDepartment of Interventional Radiology, School of Medicine, Patras University Hospital, Rion, Greece
| | - Ioannis Paraskevopoulos
- grid.417581.e0000 0000 8678 4766Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, AB25 2ZN UK
| | - Martin Mariappan
- grid.417581.e0000 0000 8678 4766Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, AB25 2ZN UK
| | - Georgios Festas
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Panagiotis Kitrou
- grid.412458.eDepartment of Interventional Radiology, School of Medicine, Patras University Hospital, Rion, Greece
| | - Christos Papageorgiou
- grid.412458.eDepartment of Interventional Radiology, School of Medicine, Patras University Hospital, Rion, Greece
| | - Lazaros Reppas
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Konstantinos Palialexis
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Dimitrios Karnabatidis
- grid.412458.eDepartment of Interventional Radiology, School of Medicine, Patras University Hospital, Rion, Greece
| | - Elias Brountzos
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
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Amin O, Pang WS, Saraswat L, Paraskevopoulos I. Splenic arteriovenous fistula – a pictorial review for the radiologist. Clin Radiol 2020. [DOI: 10.1016/j.crad.2020.11.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Katsanos K, Spiliopoulos S, Kitrou P, Krokidis M, Paraskevopoulos I, Karnabatidis D. Reply to: "Re: Risk of Death and Amputation with Use of Paclitaxel-Coated Balloons in the Infrapopliteal Arteries for Treatment of Critical Limb Ischemia: A Systematic Review and Meta-analysis of Randomized Controlled Trials". J Vasc Interv Radiol 2020; 31:1032-1034. [PMID: 32376181 DOI: 10.1016/j.jvir.2020.03.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 03/13/2020] [Indexed: 02/05/2023] Open
Affiliation(s)
- Konstantinos Katsanos
- Department of Interventional Radiology, Patras University Hospital, Rion, 26504, Greece
| | - Stavros Spiliopoulos
- Department of Interventional Radiology, Attikon University Hospital, Athens, Greece
| | - Panagiotis Kitrou
- Department of Interventional Radiology, Patras University Hospital, Rion, 26504, Greece
| | - Miltiadis Krokidis
- Department of Interventional Radiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
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Karatzas A, Karamitros A, Paraskevopoulos I, Papachristou DJ, Koureli O, Mantzari V, Panagopoulos N, Spiliopoulos S. Haematocrit and haemoglobin decrease following image-guided percutaneous core needle biopsies. Clin Radiol 2020; 75:158.e9-158.e14. [PMID: 31718788 DOI: 10.1016/j.crad.2019.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 10/09/2019] [Indexed: 02/08/2023]
Abstract
AIM To determine the clinical significance of variation in haematocrit (Ht) and haemoglobin (Hb) values before and after image-guided percutaneous core needle biopsies (PCNBs) and evaluate its clinical significance. MATERIALS AND METHODS This single-centre, retrospective study included all the patients who underwent image-guided PCNBs between November 2012 and September 2018. In total, 105 cases (56 male; 53.3%; mean age 72±8 years) were available for analysis. Biopsies included lesions of the liver, lung, kidney, bone, paravertebral and soft-tissue masses, peritoneal implantations, and retroperitoneal neoplasms. The study's primary outcome was to compare the pre- and post-procedural Ht and Hb values and to evaluate their clinical significance. RESULTS A significant decrease of the mean Hb and Ht values was detected post-biopsy (12.79±1.85 g/dl versus 12.03±1.72 g/dl and 38.75±4.93% versus 36.49±4.73%; p<0.0001). A decrease in the Ht and/or Hb level was noted in 93/105 (88.6%) and 94/105 (89.5%) of the patients; respectively. Four minor bleeding complications were noted (4/105; 3.8%), which resolved without any further treatment. An >4% decrease in Ht value was noted in 17/105 cases (16.2%) and an Hb decrease of ≥1.5 mg/dl was noted in 10/105 cases (9.5%), all without any haemodynamic compromise. CONCLUSIONS A moderate post-PCNB decrease in Ht and Hb values compared to baseline should be expected, but should not raise concerns regarding an ongoing bleeding event, if not correlated with haemodynamic and clinical signs of haemorrhage.
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Affiliation(s)
- A Karatzas
- Department of Radiology/Interventional Radiology, "Olympion" Hospital, Patras, Greece.
| | - A Karamitros
- 2nd Department of Radiology, Interventional Radiology Unit, "Attikon" University General Hospital, Athens, Greece
| | - I Paraskevopoulos
- Department of Interventional Radiology, Aberdeen Royal Infirmary Hospital, Aberdeen, Scotland, UK
| | - D J Papachristou
- Department of Anatomy-Histology-Embryology, University of Patras, School of Medicine, Patras, Greece; Department of Pathology, University of Pittsburgh, Pittsburgh, PA, USA
| | - O Koureli
- Department of Microbiology, "Olympion" Hospital, Patras, Greece
| | - V Mantzari
- Department of Microbiology, "Olympion" Hospital, Patras, Greece
| | - N Panagopoulos
- Department of Thoracic Surgery, "Olympion" Hospital, Patras, Greece
| | - S Spiliopoulos
- Department of Radiology/Interventional Radiology, "Olympion" Hospital, Patras, Greece; 2nd Department of Radiology, Interventional Radiology Unit, "Attikon" University General Hospital, Athens, Greece
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Katsanos K, Spiliopoulos S, Kitrou P, Krokidis M, Paraskevopoulos I, Karnabatidis D. Risk of Death and Amputation with Use of Paclitaxel-Coated Balloons in the Infrapopliteal Arteries for Treatment of Critical Limb Ischemia: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. J Vasc Interv Radiol 2020; 31:202-212. [PMID: 31954604 DOI: 10.1016/j.jvir.2019.11.015] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/12/2019] [Accepted: 11/14/2019] [Indexed: 02/05/2023] Open
Abstract
A formal systematic review and study-level meta-analysis of randomized controlled trials investigating treatment of the infrapopliteal arteries with paclitaxel-coated balloons compared with conventional balloon angioplasty for critical limb ischemia (CLI) was conducted. Medical databases and online content were last screened in September 2019. The primary safety and efficacy endpoint was amputation-free survival defined as freedom from all-cause death and major amputation. Target lesion revascularization (TLR) constituted a secondary efficacy endpoint. Summary effects were synthesized with a random-effects model. Some 8 randomized controlled trials with 1,420 patients (97% CLI) were analyzed up to 1 year follow-up. Amputation-free survival was significantly worse in case of paclitaxel (13.7% crude risk of death or limb loss compared to 9.4% in case of uncoated balloon angioplasty; hazard ratio 1.52; 95% confidence interval: 1.12-2.07, p = .008). TLR was significantly reduced in case of paclitaxel (11.8% crude risk of TLR versus 25.6% in control; risk ratio 0.53; 95% confidence interval: 0.35-0.81, p = .004). The harm signal was evident when examining the high-dose (3.0-3.5 μg/mm2) devices, but attenuated below significance in case of a low-dose (2.0 μg/mm2) device. Actual causes remain largely unknown, but non-target paclitaxel embolization is a plausible mechanism.
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Affiliation(s)
- Konstantinos Katsanos
- Department of Interventional Radiology, Patras University Hospital, Panepistimiou Street, Rion, Patras 26504, Greece.
| | - Stavros Spiliopoulos
- Department of Interventional Radiology, Attikon University Hospital, Athens, Greece
| | - Panagiotis Kitrou
- Department of Interventional Radiology, Patras University Hospital, Panepistimiou Street, Rion, Patras 26504, Greece
| | - Miltiadis Krokidis
- Department of Interventional Radiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
| | | | - Dimitrios Karnabatidis
- Department of Interventional Radiology, Patras University Hospital, Panepistimiou Street, Rion, Patras 26504, Greece
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Rahman S, Krokidis M, Paraskevopoulos I. Transcholecystic approach for distal common bile duct stricture in a non-dilated biliary system: an alternative route. BMJ Case Rep 2019; 12:12/12/e231153. [PMID: 31888920 DOI: 10.1136/bcr-2019-231153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
A 63-year-old patient was admitted to intensive treatment unit with biliary sepsis due to a small distal common bile duct stone. Endoscopic retrograde cholangiopancreatography was initially attempted for insertion of a biliary stent but failed due to the presence of a periampullary diverticulum. Referral to interventional radiology for percutaneous drainage was considered the next alternative even though there was no dilatation of intrahepatic ducts. Due to complete absence of intrahepatic duct dilatation, the traditional percutaneous transhepatic route was considered rather challenging. An alternative percutaneous approach via the gallbladder and subsequent catheterisation of the duodenum via the distal common bile duct was successfully performed instead without complication. We would like to describe this technique as an alternative option for drainage of the non-dilated biliary system in patients with sepsis.
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Affiliation(s)
- Syed Rahman
- Clinical Radiology, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Miltiadis Krokidis
- Department of Radiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
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12
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Orgera G, Tipaldi MA, Laurino F, Lucatelli P, Rebonato A, Paraskevopoulos I, Rossi M, Krokidis M. Techniques and future perspectives for the prevention and treatment of endoleaks after endovascular repair of abdominal aortic aneurysms. Insights Imaging 2019; 10:91. [PMID: 31549250 PMCID: PMC6757092 DOI: 10.1186/s13244-019-0774-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 07/22/2019] [Indexed: 12/04/2022] Open
Abstract
The presence of endoleaks remains one of the main drawbacks of endovascular repair of abdominal aortic aneurysms leading to the increase of the size of the aneurysmal sac and in most of the cases to repeated interventions. A variety of devices and percutaneous techniques have been developed so far to prevent and treat this phenomenon, including sealing of the aneurysmal sac, endovascular embolisation, and direct sac puncture. The aim of this review is to analyse the indications, the effectiveness, and the future perspectives for the prevention and treatment of endoleaks after endovascular repair of abdominal aortic aneurysms.
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Affiliation(s)
- Gianluigi Orgera
- Department of Radiology, Sant' Andrea University Hospital La Sapienza, Rome, Italy
| | | | - Florindo Laurino
- Department of Radiology, Sant' Andrea University Hospital La Sapienza, Rome, Italy
| | - Pierleone Lucatelli
- Department of Radiological Sciences, Sapienza University of Rome, Rome, Italy
| | - Alberto Rebonato
- The Department of Surgical and Biomedical Sciences, University of Perugia, Perugia, Italy
| | | | - Michele Rossi
- Department of Radiology, Sant' Andrea University Hospital La Sapienza, Rome, Italy
| | - Miltiadis Krokidis
- Department of Radiology, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK.
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Saratzis A, Paraskevopoulos I, Patel S, Donati T, Biasi L, Diamantopoulos A, Zayed H, Katsanos K. Supervised Exercise Therapy and Revascularization for Intermittent Claudication: Network Meta-Analysis of Randomized Controlled Trials. JACC Cardiovasc Interv 2019; 12:1125-1136. [PMID: 31153838 DOI: 10.1016/j.jcin.2019.02.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/05/2019] [Accepted: 02/12/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVES The aim of this study was to perform a comprehensive meta-analysis comparing all therapeutic modalities for intermittent claudication (IC), including best medical therapy (BMT) alone, percutaneous angioplasty (PTA), supervised exercise therapy (SET), and PTA combined with SET, to establish the optimal first-line treatment for IC. BACKGROUND IC is a common health problem that limits physical activity, results in decreased quality of life (QoL) and is associated with poor cardiovascular outcomes. Previous meta-analyses have attempted to combine data from randomized trials; however, none have combined data from all possible treatment combinations or synthesized QoL outcomes. METHODS Following a systematic review of the published research (conducted in December 2018) that identified 37 published randomized trials, a network meta-analysis was performed combining all possible IC treatment strategies. RESULTS Overall, 2,983 patients with IC were included (mean weighted age 68 years, 54.5% men). Comparisons were performed between BMT (n = 688, 28 arms) versus SET (n = 1,189, 35 arms) versus PTA (n = 511, 12 arms) versus PTA plus SET (n = 395, 8 arms). Mean weighted follow-up was 12 months (95% confidence interval: 9 to 23 months). Compared with BMT alone, PTA plus SET outperformed other treatment strategies, with a maximum walking distance gain of 290 m (95% credible interval: 180 to 390 m; p < 0.001). A variety of QoL assessments using validated tools were reported in 15 trials; PTA plus SET was superior to other treatments (Cohen's D = 1.8; 95% credible interval: 0.21 to 3.4). CONCLUSIONS In addition to BMT, PTA combined with SET seems to be the optimal first-line treatment strategy for IC in terms of maximum walking distance and QoL improvement.
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Affiliation(s)
- Athanasios Saratzis
- Department of Vascular Surgery, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, United Kingdom.
| | | | - Sanjay Patel
- Department of Vascular Surgery, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, United Kingdom
| | - Tommaso Donati
- Department of Vascular Surgery, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, United Kingdom
| | - Lukla Biasi
- Department of Vascular Surgery, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, United Kingdom
| | - Athanasios Diamantopoulos
- Department of Vascular Surgery, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, United Kingdom
| | - Hany Zayed
- Department of Vascular Surgery, Guy's and St. Thomas' Hospital NHS Foundation Trust, London, United Kingdom
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Peker A, Balendran B, Paraskevopoulos I, Krokidis M. Demystifying the Use of Self-Expandable Interwoven Nitinol Stents in Femoropopliteal Peripheral Arterial Disease. Ann Vasc Surg 2019; 59:285-292. [PMID: 31009734 DOI: 10.1016/j.avsg.2019.01.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/23/2019] [Accepted: 01/30/2019] [Indexed: 12/24/2022]
Abstract
Femoropopliteal atherosclerosis affects a significant percentage of the world population, leading to intermittent claudication and critical limb ischemia. The femoropopliteal segment has a unique set of biomechanical challenges that must be considered and overcome for treatment. The use of stents is a reality and a necessity in peripheral interventions. The success of first-generation femoropopliteal stents was limited by their rigidity and deformability. The standard nitinol stents overcame certain biomechanical challenges because of their superelasticity and thermal shape memory, although stent fracture is still an issue. Therefore, interwoven nitinol stents with helical structure have been developed, borrowing the concept from biliary stents, aiming to provide good flexibility while still maintaining a uniform cell size and significant radial strength. This unique interwoven structure gains it advantage in the femoropopliteal region. The purpose of this review article is to investigate the current published evidence of the use of self-expandable interwoven nitinol stents in femoropopliteal arterial disease and compare them with other endovascular treatment options.
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Affiliation(s)
- Ahmet Peker
- The Department of Radiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | | | | | - Miltiadis Krokidis
- The Department of Radiology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
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15
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Warland A, Paraskevopoulos I, Tsekleves E, Ryan J, Nowicky A, Griscti J, Levings H, Kilbride C. The feasibility, acceptability and preliminary efficacy of a low-cost, virtual-reality based, upper-limb stroke rehabilitation device: a mixed methods study. Disabil Rehabil 2018; 41:2119-2134. [DOI: 10.1080/09638288.2018.1459881] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Alyson Warland
- Department of Health Sciences and Social Care, Brunel University London, Uxbridge, UK
| | | | | | - Jennifer Ryan
- Department of Health Sciences and Social Care, Brunel University London, Uxbridge, UK
| | - Alexander Nowicky
- Department of Health Sciences and Social Care, Brunel University London, Uxbridge, UK
| | - Josephine Griscti
- Department of Health Sciences and Social Care, Brunel University London, Uxbridge, UK
| | - Hannah Levings
- Department of Health Sciences and Social Care, Brunel University London, Uxbridge, UK
| | - Cherry Kilbride
- Department of Health Sciences and Social Care, Brunel University London, Uxbridge, UK
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16
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Petropoulos S, Kanellopoulou A, Paraskevopoulos I, Kotseridis Y, Kallithraka S. Characterization of grape and wine proanthocyanidins of Agiorgitiko ( Vitis vinifera L. cv.) cultivar grown in different regions of Nemea. J Food Compost Anal 2017. [DOI: 10.1016/j.jfca.2017.07.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Katsanos K, Al-Lamki SAM, Parthipun A, Spiliopoulos S, Patel SD, Paraskevopoulos I, Zayed H, Diamantopoulos A. Peripheral Stent Thrombosis Leading to Acute Limb Ischemia and Major Amputation: Incidence and Risk Factors in the Aortoiliac and Femoropopliteal Arteries. Cardiovasc Intervent Radiol 2017; 40:351-359. [PMID: 27921154 PMCID: PMC5288432 DOI: 10.1007/s00270-016-1513-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 11/15/2016] [Indexed: 02/08/2023]
Abstract
PURPOSE To report the real-world incidence and risk factors of stent thrombosis in the aortoiliac and femoropopliteal arteries in case of bare nitinol stent (BNS) or covered nitinol stent (CNS) placement from a single-centre retrospective audit. MATERIALS AND METHODS Medical records of consecutive patients treated with peripheral stent placement for claudication or critical limb ischemia were audited for definite stent thrombosis defined as imaging confirmed stent thrombosis that presented as acute limb-threatening ischemia. Cases were stratified between aortoiliac and femoropopliteal anatomy. Cox regression analysis was employed to adjust for baseline clinical and procedural confounders and identify predictors of stent thrombosis and major limb loss. RESULTS 256 patients (n = 277 limbs) were analysed over a 5-year period (2009-2014) including 117 aortoiliac stents (34 CNS; 12.8 ± 5.0 cm and 83 BNS; 7.8 ± 4.0 cm) and 160 femoropopliteal ones (60 CNS; 21.1 ± 11.0 cm and 100 BNS; 17.5 ± 11.9 cm). Median follow-up was 1 year. Overall stent thrombosis rate was 6.1% (17/277) after a median of 43 days (range 2-192 days) and affected almost exclusively the femoropopliteal segment (12/60 in the CNS cohort vs. 4/100 in the BNS; p = 0.001). Annualized stent thrombosis rates (per 100 person-years) were 12.5% in case of CNS and 1.4% in case of BNS (HR 6.3, 95% CI 2.4-17.9; p = 0.0002). Corresponding major amputations rates were 8.7 and 2.5%, respectively (HR 4.5, 95% CI 2.7-27.9; p = 0.0006). On multivariable analysis, critical leg ischemia and CNS placement were the only predictors of stent thrombosis. Diabetes, critical leg ischemia, femoropopliteal anatomy, long stents and CNS were independent predictors of major amputations. CONCLUSIONS Placement of long femoropopliteal covered nitinol stents is associated with an increased incidence of acute stent thrombosis and ensuing major amputation. Risks are significantly lower in the aortoiliac vessels and with use of bare nitinol stents.
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Affiliation(s)
- Konstantinos Katsanos
- Department of Interventional Radiology, Imaging Sciences Division, Guy's and St. Thomas' Hospitals, NHS Foundation Trust, King's Health Partners, London, SE1 7EH, UK.
| | - Said A M Al-Lamki
- Department of Radiology, The Royal Hospital, PC 121, 685, Muscat, Oman
| | - Aneeta Parthipun
- Department of Interventional Radiology, Imaging Sciences Division, Guy's and St. Thomas' Hospitals, NHS Foundation Trust, King's Health Partners, London, SE1 7EH, UK
| | - Stavros Spiliopoulos
- 2nd Department of Radiology, Interventional Radiology Unit, ATTIKO Athens University Hospital, 1st Rimini St, Chaidari, 12461, Athens, Greece
| | - Sanjay Dhanji Patel
- Academic Department of Surgery, Cardiovascular Division, Guy's and St. Thomas' Hospitals, NHS Foundation Trust, King's Health Partners, London, SE1 7EH, UK
| | - Ioannis Paraskevopoulos
- Department of Interventional Radiology, Imaging Sciences Division, Guy's and St. Thomas' Hospitals, NHS Foundation Trust, King's Health Partners, London, SE1 7EH, UK
| | - Hany Zayed
- Academic Department of Surgery, Cardiovascular Division, Guy's and St. Thomas' Hospitals, NHS Foundation Trust, King's Health Partners, London, SE1 7EH, UK
| | - Athanasios Diamantopoulos
- Department of Interventional Radiology, Imaging Sciences Division, Guy's and St. Thomas' Hospitals, NHS Foundation Trust, King's Health Partners, London, SE1 7EH, UK
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18
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Patel SD, Biasi L, Paraskevopoulos I, Silickas J, Lea T, Diamantopoulos A, Katsanos K, Zayed H. Comparison of angioplasty and bypass surgery for critical limb ischaemia in patients with infrapopliteal peripheral artery disease. Br J Surg 2016; 103:1815-1822. [PMID: 27650636 DOI: 10.1002/bjs.10292] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 06/08/2016] [Accepted: 07/07/2016] [Indexed: 11/05/2022]
Abstract
BACKGROUND Both infrapopliteal (IP) bypass surgery and percutaneous transluminal angioplasty have been shown to be effective in patients with critical limb ischaemia (CLI). The most appropriate method of revascularization has yet to be established, as no randomized trials have been reported. The aim of this study was to compare the outcomes of patients with similar characteristics treated using either revascularization method. METHODS Consecutive patients undergoing IP bypass and IP angioplasty for CLI (Rutherford 4-6) at a single institution were compared following propensity score matching. The study endpoints were primary, assisted primary and secondary patency, and amputation-free survival at 12 months, calculated by Kaplan-Meier analysis. RESULTS Some 279 limbs in 243 patients were included in the study. The two groups differed significantly with respect to the incidence of diabetes (P = 0·024), estimated glomerular filtration rate (P = 0·006), total lesion length (P < 0·001) and Rutherford classification (P = 0·008). These factors were used to construct the propensity score model, which yielded a matched cohort of 125 legs in each group. Primary patency (54·4 versus 51·4 per cent; P = 0·014), assisted primary patency (77·5 versus 62·7 per cent; P = 0·003), secondary patency (84·4 versus 65·8 per cent; P < 0·001) and amputation-free survival (78·7 versus 74·1 per cent; P = 0·043) were significantly better after bypass than angioplasty. However, limb salvage was similar (90·4 versus 94·2 per cent; P = 0·161), and overall complications (36·0 versus 21·6 per cent; P = 0·041) as well as length of hospital stay (18(4-134) versus 5(0-110); P = 0·001) were worse in the surgical bypass group. CONCLUSION There was no difference in limb salvage rates, but patency and amputation-free survival rates were better 1 year after bypass surgery.
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Affiliation(s)
- S D Patel
- Departments of Vascular and Endovascular Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - L Biasi
- Departments of Vascular and Endovascular Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - I Paraskevopoulos
- Departments of Interventional Radiology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - J Silickas
- Departments of Vascular and Endovascular Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - T Lea
- Departments of Vascular and Endovascular Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - A Diamantopoulos
- Departments of Interventional Radiology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - K Katsanos
- Departments of Interventional Radiology, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - H Zayed
- Departments of Vascular and Endovascular Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
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19
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Katsanos K, Spiliopoulos S, Paraskevopoulos I, Diamantopoulos A, Karnabatidis D. Systematic Review and Meta-analysis of Randomized Controlled Trials of Paclitaxel-Coated Balloon Angioplasty in the Femoropopliteal Arteries: Role of Paclitaxel Dose and Bioavailability. J Endovasc Ther 2016; 23:356-70. [PMID: 26823485 DOI: 10.1177/1526602815626557] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE To provide a qualitative analysis and quantitative synthesis of randomized controlled trials (RCTs) investigating paclitaxel-coated balloons (PCBs) in the femoropopliteal artery. METHODS PubMed, EMBASE, AMED, Scopus, CENTRAL, online content, and abstracts from international meetings were last screened in April 2015 for eligible RCTs using the PRISMA selection process. Risk of bias was assessed using the Cochrane Collaboration's tool, and quality of evidence was evaluated with the GRADE system. Outcome measures included late lumen loss (LLL) at 6 months and event rates of major limb amputations, binary lesion restenosis, and target lesion revascularization (TLR). Pooled treatment effects were analyzed in a random effects model to account for clinical heterogeneity; the outcomes are presented as the rate ratios (RRs) and their 95% confidence intervals (CIs). Extensive meta-regression was performed to analyze potential confounders. The review was registered in the PROSPERO database (CRD42015023938; www.crd.york.ac.uk/PROSPERO). RESULTS Eleven RCTs with 1609 subjects (1403 claudicants and 206 patients with critical limb ischemia) with medium-length femoropopliteal lesions (mean range 5.1-11.9 cm) were included. There was consistently high-quality evidence supporting the clear superiority of PCBs in terms of reduced LLL (mean difference -0.89 mm, 95% CI -1.14 to -0.64, p<0.001), less binary restenosis (RR 0.47, 95% CI 0.37 to 0.61, p<0.001), and fewer TLR events (RR 0.33, 95% CI 0.22 to 0.49, p<0.001). Major amputations were rare in both active and control arms (pooled event rate: 0.7%, 95% CI 0.3% to 1.2%). Results were stable across all potential risk modifiers and in the presence of stents as well. There was high-quality evidence that the dose of paclitaxel was related to the magnitude of the treatment effect; standard dose (3.0-μg and 3.5-μg) PCBs were significantly more effective compared with low-dose 2-μg PCB in reducing both restenosis (RR 2.1, 95% CI 1.2 to 3.4, p<0.001) and TLR (RR 2.5, 95% CI 1.9 to 3.8, p<0.001). CONCLUSION PCBs reduce by more than half the rates of restenosis and TLR in the femoropopliteal artery regardless of stent placement. Biologic effect size may vary according to paclitaxel bioavailability.
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Affiliation(s)
- Konstantinos Katsanos
- Department of Interventional Radiology, Guy's and St. Thomas' Hospitals, NHS Foundation Trust, King's Health Partners, London, UK Department of Interventional Radiology, Patras University Hospital, School of Medicine, Patras, Rion, Greece
| | - Stavros Spiliopoulos
- Department of Interventional Radiology, Patras University Hospital, School of Medicine, Patras, Rion, Greece
| | - Ioannis Paraskevopoulos
- Department of Interventional Radiology, Guy's and St. Thomas' Hospitals, NHS Foundation Trust, King's Health Partners, London, UK
| | - Athanasios Diamantopoulos
- Department of Interventional Radiology, Guy's and St. Thomas' Hospitals, NHS Foundation Trust, King's Health Partners, London, UK
| | - Dimitris Karnabatidis
- Department of Interventional Radiology, Patras University Hospital, School of Medicine, Patras, Rion, Greece
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20
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Hamm J, Money AG, Atwal A, Paraskevopoulos I. Fall prevention intervention technologies: A conceptual framework and survey of the state of the art. J Biomed Inform 2016; 59:319-45. [PMID: 26773345 DOI: 10.1016/j.jbi.2015.12.013] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 12/14/2015] [Accepted: 12/20/2015] [Indexed: 11/28/2022]
Abstract
In recent years, an ever increasing range of technology-based applications have been developed with the goal of assisting in the delivery of more effective and efficient fall prevention interventions. Whilst there have been a number of studies that have surveyed technologies for a particular sub-domain of fall prevention, there is no existing research which surveys the full spectrum of falls prevention interventions and characterises the range of technologies that have augmented this landscape. This study presents a conceptual framework and survey of the state of the art of technology-based fall prevention systems which is derived from a systematic template analysis of studies presented in contemporary research literature. The framework proposes four broad categories of fall prevention intervention system: Pre-fall prevention; Post-fall prevention; Fall injury prevention; Cross-fall prevention. Other categories include, Application type, Technology deployment platform, Information sources, Deployment environment, User interface type, and Collaborative function. After presenting the conceptual framework, a detailed survey of the state of the art is presented as a function of the proposed framework. A number of research challenges emerge as a result of surveying the research literature, which include a need for: new systems that focus on overcoming extrinsic falls risk factors; systems that support the environmental risk assessment process; systems that enable patients and practitioners to develop more collaborative relationships and engage in shared decision making during falls risk assessment and prevention activities. In response to these challenges, recommendations and future research directions are proposed to overcome each respective challenge.
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Affiliation(s)
- Julian Hamm
- Department of Computer Science, Brunel University London, UK.
| | - Arthur G Money
- Department of Computer Science, Brunel University London, UK.
| | - Anita Atwal
- Department of Clinical Sciences, Brunel University London, UK.
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21
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Paraskevopoulos I, Spiliopoulos S, Davlouros P, Karnabatidis D, Katsanos K, Alexopoulos D, Siablis D. Evaluation of below-the-knee drug-eluting stents with frequency-domain optical coherence tomography: neointimal hyperplasia and neoatherosclerosis. J Endovasc Ther 2013; 20:80-93. [PMID: 23391087 DOI: 10.1583/12-4091.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE To report the use of intravascular frequency-domain optical coherence tomography (FD-OCT) to detect and characterize in-stent neointimal tissue following infrapopliteal drug-eluting stent (DES) placement in patients suffering from critical limb ischemia. METHODS This prospective study included 12 patients (7 men; mean age 72.8±7.2 years) who had previously received 21 infrapopliteal sirolimus- or everolimus-eluting stents. The patients returned for regular angiographic follow-up or presented with clinical relapse of symptoms over a mean follow-up of 13.5±7.3 months (range 6-33), at which time FD-OCT imaging was performed. Study endpoints were technical imaging success, defined as successful FD-OCT acquisition and visualization of the arterial lumen and complete vessel wall, and the detection and characterization of in-stent neointimal hyperplasia according to widely accepted OCT criteria. RESULTS OCT imaging was successfully completed in 19 of the 21 stents. Binary in-stent restenosis (ISR>50%) was detected in 10/19 stents. Percent restenosis was higher after longer follow-up (60.6%±19.8% ≥1 year vs. 35.3%±20.6% <1 year, p=0.03) and in symptomatic vs. asymptomatic patients (61.5%±20.4% vs. 37.2%±19.3%, p=0.04). Neoatherosclerosis findings included lipid-laden neointima (16/19), neointimal neovascularization (13/19), neointimal calcifications (6/19), and thrombus (5/19); no cases of thin-cap fibroatheroma were identified. Neointimal calcifications were more frequent after ≥12 months of follow-up compared to <12 months (46.6% vs. 0%, p=0.02). CONCLUSION FD-OCT of the infrapopliteal arteries following DES placement is safe and feasible and may demonstrate features of developing neointimal neoatherosclerosis. The latter might play a key role as a mechanism of below-the-knee ISR and warrants further investigation.
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Affiliation(s)
- Ioannis Paraskevopoulos
- Department of Diagnostic and Interventional Radiology, Patras University Hospital, Patras, Greece.
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Karnabatidis D, Katsanos K, Paraskevopoulos I, Diamantopoulos A, Spiliopoulos S, Siablis D. Frequency-domain intravascular optical coherence tomography of the femoropopliteal artery. Cardiovasc Intervent Radiol 2011; 34:1172-81. [PMID: 21191586 DOI: 10.1007/s00270-010-0092-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Accepted: 12/07/2010] [Indexed: 02/08/2023]
Abstract
PURPOSE Optical coherence tomography (OCT) is a catheter-based imaging method that employs near-infrared light to produce high-resolution intravascular images. The authors report the safety and feasibility and illustrate common imaging findings of frequency-domain OCT (FD-OCT) imaging of the femoropopliteal artery in a series of 20 patients who underwent infrainguinal angioplasty. METHODS After crossing the lesion of interest, OCT was performed with a dextrose saline flush technique with simultaneous obstructive manual groin compression. An automatic pullback FD-OCT device was employed (each scan acquiring 54 mm of vessel lumen in 271 consecutive frames). OCT images were acquired before and after balloon dilatation and following provisional stenting if necessary and were evaluated for baseline characteristics of plaque or in-stent restenosis (ISR), vessel wall trauma after angioplasty, presence of thrombus, stent apposition, and tissue prolapse. Imaging follow-up was not included in this study's protocol. RESULTS Twenty-seven obstructive lesions (18 cases of de novo atherosclerosis and 9 of ISR) of the femoropopliteal artery were imaged and 148 acquisitions were analyzed in total. High-resolution intravascular OCT imaging with effective blood clearance was achieved in 93.9%. Failure was mainly attributed to preocclusive proximal lesions and/or collateral flow. Mixed features of lipid pool areas, calcium deposits, necrotic core, and fibrosis were identified in all of the imaged atherosclerotic lesions, whereas ISR was purely fibrotic. After balloon angioplasty, OCT identified extensive intimal tears in all cases and one case of severe dissection that biplane subtraction angiography failed to identify. CONCLUSIONS Infrainguinal frequency-domain optical coherence tomography is safe and feasible and may provide intravascular high-resolution imaging of the femoropopliteal artery during infrainguinal angioplasty procedures.
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Affiliation(s)
- Dimitris Karnabatidis
- Department of Radiology, School of Medicine, Patras University Hospital, Patras 26504, Greece.
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Rallis E, Stavropoulou E, Paraskevopoulos I. Nimesulide-induced, multifocal, urticarial fixed drug eruption confirmed by oral provocation test. Indian J Dermatol Venereol Leprol 2009; 74:403-4. [PMID: 18797080 DOI: 10.4103/0378-6323.42926] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Horianopoulou M, Kanellopoulou M, Paraskevopoulos I, Kyriakidis A, Legakis NJ, Lambropoulos S. Use of inhaled ampicillin–sulbactam against multiresistant Acinetobacter baumannii in bronchial secretions of intensive care unit patients. Clin Microbiol Infect 2004; 10:85-6. [PMID: 14706094 DOI: 10.1111/j.1469-0691.2004.00806.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Papagoras D, Giamarellos-Bourboulis EJ, Kanara M, Douridas G, Paraskevopoulos I, Antzaklis G, Karayannacos P, Giamarellou H. Pancreatic concentrations of cefepime in experimental necrotizing pancreatitis. J Chemother 2003; 15:43-6. [PMID: 12678413 DOI: 10.1179/joc.2003.15.1.43] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
To evaluate the penetration of cefepime in the inflamed pancreas, three doses of 50 mg/kg were administered intramuscularly at 8-h intervals after induction of acute necrotizing pancreatitis using intraperitoneal injection of DL-ethionine in 35 rabbits and in 33 controls. Animals were sacrificed and concentrations of cefepime were determined by a microbiological assay. Cefepime reached its peak concentrations 60 min after the last drug dose when mean values of 46.05 microg/ml, 22.34 microg/g and 34.74 microg/ml were found in serum, pancreas and bile, respectively, in rabbits with acute necrotizing pancreatitis and 45.19 microg/ml, 12.68 microg/g and 20.77 microg/ml respectively in controls. Tissue/serum ratios of cefepime were 0.48, 0.23, 0.15 and 0.09 at 60, 90, 120 and 180 min, respectively, after the last dose of cefepime in rabbits with acute necrotizing pancreatitis and 0.28, 0.18, 0.16 and 0.16, respectively at 60, 90, 120 and 180 min in controls. It is concluded that the administration of cefepime in rabbits with acute necrotizing pancreatitis resulted in pancreatic tissue levels well above the MIC90s of the common pathogens involved in pancreatic superinfection, so that its administration might be proposed for the therapy of superinfection following acute necrotizing pancreatitis in humans.
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Affiliation(s)
- D Papagoras
- Department of Surgery, Sismanoglion General Hospital, Maroussi Attikis, Greece
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27
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Kanellopoulou M, Horiaropoulou M, Paraskevopoulos I, Lambropoulos S, Legakis NJ, Papafrangas E. Unusual nosocomial infection due to Pseudomonas aeruginosa. J Hosp Infect 2002; 50:239. [PMID: 11886208 DOI: 10.1053/jhin.2001.1183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Katis K, Kotrogiannis G, Paraskevopoulos I, Tsiafaki X, Dahabreh J, Blana K, Sideris G, Apostolopoulou F, Rasidakis A. Bronchoscopic Needle Aspiration in Mediastinal Staging of Patients with Bronchogenic Carcinoma. ACTA ACUST UNITED AC 1998. [DOI: 10.1097/00128594-199807000-00004] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Katis K, Inglesos E, Zachariadis E, Palamidas P, Paraskevopoulos I, Sideris G, Tamvakopoulou E, Apostolopoulou F, Rasidakis A. The role of transbronchial needle aspiration in the diagnosis of peripheral lung masses or nodules. Eur Respir J 1995. [DOI: 10.1183/09031936.95.08060963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The purpose of this study was to evaluate the role of transbronchial needle aspiration (TBNA) in the diagnosis of peripheral lung lesions. We attempted to perform TBNA in 37 patients referred to our hospital for diagnostic evaluation of radiographically evident peripheral masses (23 cases) or nodules (14 cases). None of them had bronchoscopic evidence of endobronchial lesion. The aspirations were performed under fluoroscopic guidance, through a fibreoptic bronchoscope, employing a 21-gauge, 1.3 cm aspirating needle. They were preceded by bronchial brushing and followed by transbronchial biopsy (TBB) of the peripheral lesion. In two cases, the apical nodules were not accessible by any of these procedures. Bronchial washings were also collected immediately after each procedure (brush, TBNA and TBB). TBNA was diagnostic in 23 of 37 patients (62%) rendering the TBNA yield considerably higher than washing (24%), brushing (27%) or TBB (38%). The addition of TBNA to the combination of TBB, brushing and washing, significantly increased the yield of fibreoptic bronchoscopy in our series from 46% to 70%. No significant complications, such as pneumothorax or major bleeding, occurred either with TBNA or TBB. In conclusion, our findings suggest that transbronchial needle aspiration is a safe procedure, that can improve the diagnostic yield of bronchoscopy in the diagnosis of peripheral lung masses or nodules.
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Katis K, Inglesos E, Zachariadis E, Palamidas P, Paraskevopoulos I, Sideris G, Tamvakopoulou E, Apostolopoulou F, Rasidakis A. The role of transbronchial needle aspiration in the diagnosis of peripheral lung masses or nodules. Eur Respir J 1995; 8:963-6. [PMID: 7589384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The purpose of this study was to evaluate the role of transbronchial needle aspiration (TBNA) in the diagnosis of peripheral lung lesions. We attempted to perform TBNA in 37 patients referred to our hospital for diagnostic evaluation of radiographically evident peripheral masses (23 cases) or nodules (14 cases). None of them had bronchoscopic evidence of endobronchial lesion. The aspirations were performed under fluoroscopic guidance, through a fibreoptic bronchoscope, employing a 21-gauge, 1.3 cm aspirating needle. They were preceded by bronchial brushing and followed by transbronchial biopsy (TBB) of the peripheral lesion. In two cases, the apical nodules were not accessible by any of these procedures. Bronchial washings were also collected immediately after each procedure (brush, TBNA and TBB). TBNA was diagnostic in 23 of 37 patients (62%) rendering the TBNA yield considerably higher than washing (24%), brushing (27%) or TBB (38%). The addition of TBNA to the combination of TBB, brushing and washing, significantly increased the yield of fibreoptic bronchoscopy in our series from 46% to 70%. No significant complications, such as pneumothorax or major bleeding, occurred either with TBNA or TBB. In conclusion, our findings suggest that transbronchial needle aspiration is a safe procedure, that can improve the diagnostic yield of bronchoscopy in the diagnosis of peripheral lung masses or nodules.
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Affiliation(s)
- K Katis
- Second Dept of Pulmonary Medicine, Sismanogleion General Hospital, Athens, Greece
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Paraskevopoulos I. Effects of redundancy on information-reduction tasks. J Exp Child Psychol 1969; 7:195-202. [PMID: 5786432 DOI: 10.1016/0022-0965(69)90043-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Paraskevopoulos I. Developmental stages for decoding symmetry in retarded and gifted children. Am J Ment Defic 1968; 73:447-454. [PMID: 5699746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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