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Zilio F, Rigoni M, Muraglia S, Borghesi M, Zucchelli F, Todaro D, Dallago M, Braito G, Damaggio F, Nollo G, Bonmassari R. Implementation of a Night Service of Helicopter Transportation to Reduce the Time to Revascularization in STEMI Patients in a Mountainous Region: Impact on Outcomes. J Clin Med 2022; 11:jcm11175089. [PMID: 36079018 PMCID: PMC9457436 DOI: 10.3390/jcm11175089] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/25/2022] [Accepted: 08/28/2022] [Indexed: 11/29/2022] Open
Abstract
Background: Treatment delays are the most easily audited index of quality of care in the setting of ST-segment elevation myocardial infarction; among the components of ischemia time, system delay has been demonstrated to be a predictor of outcomes, and in a mountainous region it relies mostly upon helicopter rescue service. Aim: The aim of the study is to analyze the impact of the activation of helicopter rescue service for the nighttime for urgent transportation of patients on the time to revascularization and on the outcomes of STEMI patients. Methods: Data were prospectively collected in a database and retrospectively split into two different cohorts, based on the presentation date in the 18 months before, or after, the first day of implementation of the new organizational model. The patients were also split into two groups based on the place of STEMI diagnosis, either the chief town territory or the rest of the region, and retrospectively evaluated for vital status at 30 days and 2 years after index event. Results: The number of patients included was 751. For patients coming from outside Trento, an improvement in ST-segment resolution was shown (ST-segment elevation reduction >50% in 54.0% of the patients vs. 36.4%, p < 0.01). Moreover, a reduction in diagnosis-to-reperfusion median time has been demonstrated (from 105 to 97 min, p < 0.01), mainly driven by a reduction during the night shift (from 119 to 100 min, p = 0.02). With regard to 30-day and 2-year mortality, no statistically significant differences were achieved. Discussion: The organizational effort has translated into a significant reduction in the treatment delay for patients coming from outside the chief town. However, although a longer diagnosis to reperfusion time has been related to a higher mortality, a significant reduction in mortality was not demonstrated in our study. However, an improvement in ST-segment elevation resolution was shown for patients coming from outside the city of Trento, a result that could have other potential clinical benefits. Conclusions: Implementation of night flight proved to be effective in reducing the time between the diagnosis and the treatment of patients in the setting of STEMI, improving ST-segment elevation resolution, although no impact was shown on short- and long-term mortality.
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Affiliation(s)
- Filippo Zilio
- Department of Cardiology, Santa Chiara Hospital, 38122 Trento, Italy
- Correspondence: ; Tel.: +39-0461903121; Fax: +39-0461903122
| | - Marta Rigoni
- BIOtech Lab, Department of Industrial Engineering, University of Trento, 38123 Trento, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy
| | - Simone Muraglia
- Department of Cardiology, Santa Chiara Hospital, 38122 Trento, Italy
| | - Marco Borghesi
- Department of Cardiology, Santa Chiara Hospital, 38122 Trento, Italy
| | | | - Daniel Todaro
- Department of Cardiology, Santa Chiara Hospital, 38122 Trento, Italy
| | - Michele Dallago
- Department of Cardiology, Santa Chiara Hospital, 38122 Trento, Italy
| | - Giuseppe Braito
- Department of Cardiology, Santa Chiara Hospital, 38122 Trento, Italy
| | - Fabrizio Damaggio
- Department of Cardiology, Santa Chiara Hospital, 38122 Trento, Italy
| | - Giandomenico Nollo
- BIOtech Lab, Department of Industrial Engineering, University of Trento, 38123 Trento, Italy
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Murchio S, Dallago M, Zanini F, Carmignato S, Zappini G, Berto F, Maniglio D, Benedetti M. Additively manufactured Ti-6Al-4V thin struts via laser powder bed fusion: Effect of building orientation on geometrical accuracy and mechanical properties. J Mech Behav Biomed Mater 2021; 119:104495. [PMID: 33831659 DOI: 10.1016/j.jmbbm.2021.104495] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 11/13/2020] [Revised: 03/02/2021] [Accepted: 03/22/2021] [Indexed: 01/26/2023]
Abstract
Porous metal lattice structures have a very high potential in biomedical applications, setting as innovative new generation prosthetic devices. Laser powder bed fusion (L-PBF) is one of the most widely used additive manufacturing (AM) techniques involved in the production of Ti6Al4V lattice structures. The mechanical and failure behavior of lattice structures is strongly affected by geometrical imperfections and defects occurring during L-PBF process. Due to the influence of multiple process parameters and to their combined effect, the mechanical properties of these structures are not yet properly understood. Despite the major commitment to characterize and better comprehend lattice structures, little attention has been paid to the impact that single struts have on the overall lattice properties. In this work, the authors have investigated the tensile strength and fatigue behavior of thin L-PBF Ti6Al4V lattice struts at different building orientations (0°, 15°, 45°, and 90°). This investigation has been focused on the effect that microstructural defects (particularly porosity) and actual surface geometry (including surface texture and geometrical errors such as varying cross-section shape and size) have on the mechanical performances of the struts in relation to their building direction. The results have shown that there is a tendency, particularly for low printing angles, of fatigue life to decrease with decreasing of the building angle. This is mainly due to the surge in surface texture and loss in cross-sectional regularity. On the other hand, the monotonic tensile test results have shown a low sensitivity to these factors. The strut failure behavior has been examined employing dynamic digital image correlation (DIC) of tensile tests and scanning electron imaging (SEM) of the fracture surfaces.
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Affiliation(s)
- S Murchio
- Department of Industrial Engineering - DII, University of Trento, Trento, Italy; BIOtech Research Center, University of Trento, Trento, Italy.
| | - M Dallago
- Department of Industrial Engineering - DII, University of Trento, Trento, Italy
| | - F Zanini
- Department of Management and Engineering, University of Padua, Vicenza, Italy
| | - S Carmignato
- Department of Management and Engineering, University of Padua, Vicenza, Italy
| | - G Zappini
- Lincotek Medical Trento, Pergine Valsugana, Italy
| | - F Berto
- Department of Mechanical and Industrial Engineering, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
| | - D Maniglio
- Department of Industrial Engineering - DII, University of Trento, Trento, Italy; BIOtech Research Center, University of Trento, Trento, Italy
| | - M Benedetti
- Department of Industrial Engineering - DII, University of Trento, Trento, Italy
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Borghesi M, Zilio F, Braito G, Dallago M, Muraglia S, Todaro D, Bonmassari R. How to keep the cath-lab of a hub center "covid free" during the pandemic in a hub & spoke cardiology network: a single center experience and literature review. Minerva Cardiol Angiol 2021; 70:468-475. [PMID: 33703854 DOI: 10.23736/s2724-5683.20.05477-8] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND north of Italy has been one of the most affected area in the world by the novel Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV2). The healthcare system has been overwhelmed by the huge number of patients in need of mechanical ventilation or intensive care, resulting in a delay of treatment of patients with acute coronary syndrome (ACS), due to a crash in STEMI networks and closure of a certain number of hub centers, and to a delay in patients' seeking for medical evaluation for chest pain or angina-equivalent symptoms. METHODS in the Trentino region, a mountainous area with about 500,000 inhabitants, very close to Lombardy that was the epicenter of the pandemic in Italy, to avoid these dramatic consequences, we developed a new protocol tailored to our specificity to keep our institution, and above all the cath-lab, clean from the SARS-CoV-2 infection, to ensure full operativity for cardiologic emergencies. RESULTS Applying this protocol during the two months of the peak of the infection in Italy no one of the staff members of the cath-lab, the ICCU or the cardiology ward tested positive to nasal swab for SARS-CoV-2 and the same result was obtained for all the patients admitted to our units. CONCLUSIONS our real world experience shows that during the COVID-19 pandemic, quick activation of an appropriate protocol defining specific pathways for patients with a medical urgency is effective in minimizing healthcare personnel exposure and to preserve full operativity of the hub centers. This issue will be of a crucial importance, now that we are facing the second wave of the pandemic.
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Affiliation(s)
- Marco Borghesi
- Interventional Cardiology, Department of Cardiology, Santa Chiara Hospital, Trento, Italy -
| | - Filippo Zilio
- Interventional Cardiology, Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Giuseppe Braito
- Interventional Cardiology, Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Michele Dallago
- Interventional Cardiology, Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Simone Muraglia
- Interventional Cardiology, Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Daniel Todaro
- Interventional Cardiology, Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Roberto Bonmassari
- Interventional Cardiology, Department of Cardiology, Santa Chiara Hospital, Trento, Italy
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Fileti L, Sciahbasi A, Vecchio S, Saia F, Varani E, Calabrò P, Franco N, Palmieri C, Santi M, Imperadore F, Mameli S, Dallago M, Capecchi A, Galvani M, Piovaccari G, Rubboli A. [Periprocedural management of anticoagulation therapy and in-hospital outcomes in patients with warfarin indication undergoing percutaneous coronary intervention. Data from the WAR-STENT registry]. G Ital Cardiol (Rome) 2021; 22:62-67. [PMID: 33470244 DOI: 10.1714/3502.34884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND In patients with an indication for oral anticoagulation (OAC) with warfarin, the management of OAC peri-procedure of percutaneous coronary intervention (PCI) is still not fully defined. To investigate clinical practice and outcomes associated with continuation vs interruption of OAC, with or without bridging with low-molecular-weight heparin (LMWH), we examined the database of the observational, prospective, multicenter Italian WAR-STENT registry. METHODS The WAR-STENT registry was conducted in 2008-2010 in 37 Italian centers and included 411 consecutive patients in 157 of whom the peri-procedural international normalized ratio (INR) value was available. In relation to the continuation vs interruption of OAC, patients were divided into group 1 (n = 106) and group 2 (n = 51) respectively, and compared. RESULTS The basal characteristics of the two groups were similar. The most frequent indication for OAC was atrial fibrillation and for PCI acute coronary syndromes, respectively. The pre-procedural mean value of INR was significantly different in group 1 vs group 2 (2.3 ± 0.4 vs 1.5 ± 0.2; p <0.001), while the use of antithrombotic drugs did not differ, except for LMWH which, albeit limited to only 14% of cases, was used significantly more frequently in group 2 (14% vs 2%; p=0.006). The radial approach was used significantly more often in group 1 vs group 2 (72% vs 45%; p=0.002). The in-hospital incidence of major bleeding complications was similar in groups 1 and 2 (4% vs 8%; p=0.27), as well as the occurrence of major adverse cardio-cerebrovascular events, including cardiovascular death, non-fatal myocardial infarction, re-revascularization of the treated vessel, stent thrombosis, stroke and venous thromboembolism (6% vs 6%; p=0.95). There was a tendency towards a higher incidence of minor access-site bleeding complications in group 1 patients treated by the femoral route. CONCLUSIONS In unselected patients with an indication for OAC with warfarin and undergoing PCI, the continuation vs interruption of OAC (essentially without LMWH bridging) strategies appears similar in terms of efficacy and safety. In consideration of the superior convenience, peri-procedural continuation of OAC should therefore generally be preferred, with the possible exception of patients in whom the femoral approach is required for the procedure.
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Affiliation(s)
- Luca Fileti
- Dipartimento Cardiovascolare - AUSL Romagna, U.O.C. Cardiologia, Ospedale S. Maria delle Croci, Ravenna
| | | | - Sabine Vecchio
- Dipartimento Cardiovascolare - AUSL Romagna, U.O.C. Cardiologia, Ospedale S. Maria delle Croci, Ravenna
| | - Francesco Saia
- Dipartimento Cardio-Toraco-Vascolare, U.O.C. Cardiologia, Policlinico Universitario S. Orsola-Malpighi, Bologna
| | - Elisabetta Varani
- Dipartimento Cardiovascolare - AUSL Romagna, U.O.S. Cardiologia, Ospedale Umberto I, Lugo (RA)
| | - Paolo Calabrò
- U.O.C. Cardiologia, A.O.R.N. "S. Anna e S. Sebastiano", Caserta e Dipartimento di Scienze Mediche Traslazionali, Università della Campania "Luigi Vanvitelli", Napoli
| | - Nicoletta Franco
- Dipartimento Cardiovascolare - AUSL Romagna, U.O.C. Cardiologia, Ospedale degli Infermi, Rimini
| | - Cataldo Palmieri
- U.O.S. Cardiologia Invasiva, Ospedale del Cuore "G. Pasquinucci", Massa
| | - Michela Santi
- Dipartimento Cardiovascolare - AUSL Romagna, U.O.S. Cardiologia, Ospedale Umberto I, Lugo (RA)
| | | | | | | | | | - Marcello Galvani
- Dipartimento Cardiovascolare - AUSL Romagna, U.O.C. Cardiologia, Ospedale Morgagni, Forlì
| | - Giancarlo Piovaccari
- Dipartimento Cardiovascolare - AUSL Romagna, U.O.C. Cardiologia, Ospedale degli Infermi, Rimini
| | - Andrea Rubboli
- Dipartimento Cardiovascolare - AUSL Romagna, U.O.C. Cardiologia, Ospedale S. Maria delle Croci, Ravenna
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Zilio F, Muraglia S, Morat F, Borghesi M, Todaro D, Menotti A, Dallago M, Braito G, Bonmassari R. Sex differences in clinical and angiographic characteristics in spontaneous coronary artery dissection. Future Cardiol 2020; 17:669-675. [PMID: 33078958 DOI: 10.2217/fca-2020-0124] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 02/07/2023] Open
Abstract
Background: Spontaneous coronary artery dissection (SCAD) is an increasingly recognized cause of acute coronary syndrome, mostly in women; however, differences between the sexes should be investigated. Materials & methods: Hundred consecutive patients affected by SCAD were identified; coronary lesions were classified according to the most recent classification and clinical and angiographic data of men and women were compared. Results: Men were significantly younger than women, with more cardiovascular risk factors. Lesions were prevalently classified as type 2A, type 2B or type 1; an angiographic pattern compatible with the presence of an intimal tear (types 1 and 1/2) was more represented in males. Conclusion: Sex-related differences in clinical and angiographic characteristics could help in shedding light on mechanisms that contribute to SCAD.
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Affiliation(s)
- Filippo Zilio
- Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Simone Muraglia
- Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Fabiola Morat
- Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Marco Borghesi
- Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Daniel Todaro
- Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Alberto Menotti
- Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Michele Dallago
- Department of Cardiology, Santa Chiara Hospital, Trento, Italy
| | - Giuseppe Braito
- Department of Cardiology, Santa Chiara Hospital, Trento, Italy
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Tedoldi F, Ravanelli D, Braito G, Dallago M, Menotti A, Muraglia S, Menegotti L, Bonmassari R. [Risk assessment and early predictors of survival after out-of-hospital cardiac arrest in the province of Trento, Italy]. G Ital Cardiol (Rome) 2020; 21:647-653. [PMID: 32686792 DOI: 10.1714/3405.33899] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND Early prognostication of patients experiencing out-of-hospital cardiac arrest (OHCA) remains difficult, with no recommended risk assessment tool. The aim of this study was to determine and assess the association between available variables with survival at discharge of patients with OHCA in our regional reality. METHODS We conducted a retrospective observational study in a single-center cohort of 236 consecutive patients with OHCA and return of spontaneous circulation admitted to the S. Chiara Hospital (Trento, Italy) from 2012 to 2015. We applied a backward stepwise multivariable logistic regression performed on 26 variables significantly related to outcome to identify predictors. The final model was evaluated for discrimination with area under the curve (AUC) of a receiver operating characteristic curve and for calibration with Hosmer-Lemeshow test and with calibration belt. RESULTS We identified four independent factors predictive of outcome: age, arterial blood pH, coronary angiography execution and intervention of helicopter. The final model presented good discrimination with an average AUC of 0.78 (95% confidence interval 0.72-0.84) and was well calibrated, as confirmed by the Hosmer-Lemeshow test (p=0.45) and the calibration belt plot (p=0.597). CONCLUSIONS Age, arterial blood pH, coronary angiography execution and intervention of helicopter were variables predictive of outcome. Identified predictors are in agreement with the literature and relate to local reality. Accurate prognostic assessment would facilitate an earlier identification of patients who may benefit from intensive advanced post-resuscitation care.
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Affiliation(s)
| | | | | | | | | | | | - Loris Menegotti
- Dipartimento di Fisica Sanitaria, Ospedale Santa Chiara, Trento
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Cristoforetti A, Masè M, Bonmassari R, Dallago M, Nollo G, Ravelli F. A patient-specific mass-spring model for biomechanical simulation of aortic root tissue during transcatheter aortic valve implantation. Phys Med Biol 2019; 64:085014. [PMID: 30884468 DOI: 10.1088/1361-6560/ab10c1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The success of transcatheter aortic valve implantation (TAVI) is highly dependent on the prediction of the interaction between the prosthesis and the aortic root anatomy. The simulation of the surgical procedure may be useful to guide artificial valve selection and delivery, nevertheless the introduction of simulation models into the clinical workflow is often hindered by model complexity and computational burden. To address this point, we introduced a patient-specific mass-spring model (MSM) with viscous damping, as a good trade-off between simulation accuracy and time-efficiency. The anatomical model consisted of a hexahedral mesh, segmented from pre-procedural patient-specific cardiac computer tomographic (CT) images of the aortic root, including valve leaflets and attached calcifications. Nodal forces were represented by linear-elastic springs acting on edges and angles. A fast integration approach based on the modulation of nodal masses was also tested. The model was validated on seven patients, comparing simulation results with post-procedural CT images with respect to calcification and aortic wall position. The validation showed that the MSM was able to predict calcification displacement with an average accuracy of 1.72 mm and 1.54 mm for the normal and fast integration approaches, respectively. Wall displacement root mean squared error after valve expansion was about 1 mm for both approaches, showing an improved matching with respect to the pre-procedural configuration. In terms of computational burden, the fast integration approach allowed a consistent reduction of the computational times, which decreased from 36 h to 21.8 min per 100 K hexahedra. Our findings suggest that the proposed linear-elastic MSM model may provide good accuracy and reduced computational times for TAVI simulations, fostering its inclusion in clinical routines.
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Affiliation(s)
- Alessandro Cristoforetti
- Department of Industrial Engineering, University of Trento, Trento, Italy. Department of Physics, University of Trento, Trento, Italy
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Dallago M, Raghavendra S, Luchin V, Zappini G, Pasini D, Benedetti M. Geometric assessment of lattice materials built via Selective Laser Melting. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.matpr.2018.11.096] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Rubboli A, Saia F, Sciahbasi A, Leone AM, Palmieri C, Bacchi-Reggiani ML, Calabrò P, Bordoni B, Piccalò G, Franco N, Nicolino A, Magnavacchi P, Vignali L, Mameli S, Dallago M, Maggiolini S, Steffanon L, Piovaccari G, Di Pasquale G. Twelve-month outcome of patients with an established indication for oral anticoagulation undergoing coronary artery stenting and stratified by the baseline risk of bleeding. Cardiovascular Revascularization Medicine 2017; 18:425-430. [DOI: 10.1016/j.carrev.2017.03.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 10/19/2022]
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Dallago M, Braito G, Menotti A, Muraglia S, Zilio F, Bonmassari R. P3286The experience of a dual filter cerebral embolic protection device during TAVI. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3286] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Colli A, Besola L, Salizzoni S, Gregori D, Tarantini G, Agrifoglio M, Chieffo A, Regesta T, Gabbieri D, Saia F, Tamburino C, Ribichini F, Valsecchi O, Loi B, Iadanza A, Stolcova M, Minati A, Martinelli G, Bedogni F, Petronio A, Dallago M, Cappai A, D'Onofrio A, Gerosa G, Rinaldi M. Does pre-existing aortic regurgitation protect from death in patients who develop paravalvular leak after TAVI? Int J Cardiol 2017; 233:52-60. [PMID: 28188002 DOI: 10.1016/j.ijcard.2017.02.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 08/05/2016] [Revised: 01/01/2017] [Accepted: 02/01/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The aim of this study was to investigate interactions among pre-procedural aortic regurgitation (AR), post-procedural paravalvular leak (PVL) and long-term clinical outcomes. METHODS AND RESULTS We analyzed data prospectively collected in the Italian Transcatheter balloon-Expandable Registry (ITER) on aortic stenosis (AS) patients. The degree of pre-procedural AR and post-procedural PVL was stratified as: absent/trivial, mild, and moderate/severe. VARC definitions were applied to outcomes. Of 1708 patients, preoperatively, AR was absent/trivial in 40% of the patients, mild in 42%, and moderate in 18%. Postoperatively, PVL was moderate-severe in 5%, mild in 32% of patients, and absent/trivial in 63%. Clinical follow-up, median 821days (IQR 585.75), was performed in 99.7% of patients. PVL, but not preoperative AR, was a major predictor of adverse outcome (HR 1.33, CI 95% 0.9-2.05, p=0.012 for mild PVL, HR 1.36, CI 95% 0.9-2.05, p<0.001 for PVL≥moderate and OR 1.04, p=0.97 respectively). Patients with moderate-severe PVL and preoperative left ventricle (LV) dilatation (LVEDVi>75ml/m2) showed better survival than those without dilatation (HR 8.63, p=0.001). CONCLUSIONS In patients with severe AS treated with balloon-expandable TAVI, the presence of PVL, but not pre-procedural AR, was a major predictor of adverse outcome. Preoperative LV dilatation seemed to offer some clinical advantages.
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Affiliation(s)
- Andrea Colli
- Department of Cardiology, Thoracic and Vascular Sciences, University of Padua, Padua, Italy.
| | - Laura Besola
- Department of Cardiology, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Stefano Salizzoni
- Division of Cardiac Surgery, San Giovanni Battista Hospital 'Molinette', University of Turin, Turin, Italy
| | - Dario Gregori
- Department of Cardiology, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Giuseppe Tarantini
- Department of Cardiology, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Marco Agrifoglio
- Department of Clinical Sciences and Community Health, Cardiac Surgery, University of Milan, Centro Cardiologico Monzino Hospital, Milan, Italy
| | - Alaide Chieffo
- Division of Metabolic and Cardiovascular Sciences, San Raffaele Scientific Institute, Milan, Italy
| | - Tommaso Regesta
- Division of Cardiac Surgery, San Martino University Hospital, University of Genova, Genova, Italy
| | - Davide Gabbieri
- Clinical Surgical Cardiology and Thoracic Vascular Department, Hesperia Hospital, Modena, Italy
| | - Francesco Saia
- Department of Cardiology, Policlinico S. Orsola-Malpighi, University of Bologna, Bologna, Italy
| | - Corrado Tamburino
- Division of Cardiology, Ferrarotto Hospital, Catania, Catania, Italy
| | - Flavio Ribichini
- Division of Cardiology of the Department of Medicine, University of Verona, Verona, Italy
| | - Orazio Valsecchi
- Cardiovascular Department, AO Papa Giovanni XXIII, Bergamo, Italy
| | - Bruno Loi
- Interventional Cardiology Unit, AO Brotzu, Cagliari, Italy
| | - Alessandro Iadanza
- Department of Cardiovascular Diseases, Le Scotte University Hospital, University of Siena, Siena, Italy
| | - Miroslava Stolcova
- Interventional Cardiology Unit, Careggi University Hospital, Florence, Italy
| | - Alessandro Minati
- Division of Cardiac Surgery, Azienda Ospedaliera-Universitaria, Trieste, Italy
| | | | - Francesco Bedogni
- Department of Cardiology, Clinical Institute S. Ambrogio, Milan, Italy
| | - Anna Petronio
- Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | | | - Antioco Cappai
- Division of Cardiac Surgery, Humanitas Research Hospital, Milan, Italy
| | - Augusto D'Onofrio
- Department of Cardiology, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Gino Gerosa
- Department of Cardiology, Thoracic and Vascular Sciences, University of Padua, Padua, Italy
| | - Mauro Rinaldi
- Division of Cardiac Surgery, San Giovanni Battista Hospital 'Molinette', University of Turin, Turin, Italy
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Dallago M, Fontanari V, Winiarski B, Zanini F, Carmignato S, Benedetti M. Fatigue properties of Ti6Al4V cellular specimens fabricated via SLM: CAD vs real geometry. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.prostr.2017.11.068] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tedoldi F, Muraglia S, Braito G, Dallago M, Menotti A, Zilio F, Bonmassari R. TCT-850 Building of a network for the management of out of hospital cardiac arrest: experience of an italian mountainous region. J Am Coll Cardiol 2016. [DOI: 10.1016/j.jacc.2016.09.880] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Verhoeven G, Dallago M. Mediale patellaluxatie bij de hond. VLAAMS DIERGEN TIJDS 2016. [DOI: 10.21825/vdt.v85i2.16352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Mediale patellaluxatie is een veel voorkomende aandoening bij de hond. Het komt het vaakst voor bij kleine honden maar grote hondenrassen kunnen zeker ook aangetast zijn. De meest voorkomende oorzaak van patellaluxatie is van congenitale oorsprong. Een traumatische oorzaak is zeldzaam. De origine van deze aandoening ligt in een verplaatsing van de krachten van het quadricepsmechanisme die tot misvorming van de femur, tibia en patella kan leiden. Therapeutische en chirurgische opties voor mediale patellaluxatie zijn reeds veelvuldig beschreven. In dit artikel wordt een samenvatting gegeven van de verschillende behandelingsopties en hun mogelijke complicaties.
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Dallago M, De Bakker E, Coppieters E, Saunders J, Gielen I, Van Ryssen B. Medial coronoid disease in an eleven-year-old Labrador retriever. VLAAMS DIERGEN TIJDS 2015. [DOI: 10.21825/vdt.v84i5.16586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this case report, the occurrence of medial coronoid disease (MCD) is described in an elevenyear- old Labrador retriever. A left frontleg lameness had started six months before presentation. Radiographs showed minimal pathology and computed tomography (CT) demonstrated a discrete fissure of the medial coronoid process. Arthroscopy confirmed the presence of a coronoid lesion, visible as chondromalacia. Treatment was performed by arthroscopic removal of the diseased cartilage and subchondral bone. Despite the successful procedure, the dog needed continuous physiotherapy to maintain an acceptable gait. MCD is a developmental disorder mainly affecting young large breed dogs. However, the described dog was already eleven years old. Nevertheless, the duration of lameness was rather short and the imaging and arthroscopic findings could not demonstrate a chronic problem. In the literature, little information is available about the etiology, prevalence and treatment outcome of medial coronoid pathology in old dogs.
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De Bakker E, Dallago M, Van Ryssen B, Meyer E. Is stamceltherapie voor orthopedische aandoeningen bij de hond reeds inzetbaar? VLAAMS DIERGEN TIJDS 2015. [DOI: 10.21825/vdt.v84i2.16614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In navolging van de humane geneeskunde is de interesse in stamceltherapie ook in de diergeneeskunde sterk toegenomen. Door de toenemende media-aandacht is stamceltherapie voor velen zelfs een bekende term geworden. In de diergeneeskunde is de toepassing van stamceltherapie voornamelijk gericht op orthopedische aandoeningen bij paarden en honden, aangezien klassieke medicamenteuze en chirurgische therapieën voor vele bot-, kraakbeen- en ligamenteuze aandoeningen vaak niet resulteren in een volledig functioneel herstel...
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Colli A, Salizzoni S, Besola L, Gregori D, Agrifoglio M, Chieffo A, Regesta T, Tarantini G, Gabbieri D, Saia F, Tamburino C, Ribichini F, Valsecchi O, Loi B, Iadanza A, Santoro G, Minati A, Martinelli G, Bedogni F, Petronio A, Dallago M, Colombo A, D’Onofrio A, Gerosa G, Rinaldi M. DOES PRE-EXISTING AORTIC REGURGITATION PROTECTS FROM DEATH IN PATIENTS WHO DEVELOP PARAVALVULAR LEAK AFTER TRANSCATHETER AORTIC VALVE IMPLANTATION? J Am Coll Cardiol 2015. [DOI: 10.1016/s0735-1097(15)61945-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Muraglia S, Braito G, Dallago M, Menotti A, Bonmassari R. TCT-435 Spontaneous Coronary Dissection: 10 Years Follow Up in Our Cath Lab. J Am Coll Cardiol 2012. [DOI: 10.1016/j.jacc.2012.08.465] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Furlanello F, Bertoldi A, Dallago M, Galassi A, Fernando F, Biffi A, Mazzone P, Pappone C, Chierchia S. Atrial fibrillation in elite athletes. J Cardiovasc Electrophysiol 1998; 9:S63-8. [PMID: 9727678] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Atrial fibrillation (AF) is a rare event in people younger than 25 years of age, but is probably more frequent in competitive athletes. We analyzed the presence of AF, paroxysmal or chronic, in a population of young elite athletes, including previous Olympic and World champions, who were studied for arrhythmias that endangered their athletic careers. METHODS AND RESULTS From 1974 to June 1977, 1,772 athletes identified with arrhythmias (1,464 males and 308 females; mean age 21 years) underwent individualized work-ups. Among these, 146 (122 males and 24 females; mean age 24 years) were young elite athletes. They were studied from 1985 to 1997, with a mean follow-up of 62 months. Of the 146 young elite athletes, 13 (9%) had AF (paroxysmal in 11 and chronic in 2); all were male. The paroxysmal AF occurred during effort (n = 7), after effort (n = 1), or at rest (n = 3) and was reinduced by transesophageal pacing or endocavitary electrophysiologic testing under the same clinical circumstances. AF was the cause of symptoms in 13 (40%) of 22 young elite athletes with long-lasting palpitations. Five young elite athletes had a substrate for AF: Wolff-Parkinson-White syndrome (WPW) in 3, arrhythmogenic right ventricular dysplasia (ARVD) in 1, healed myocarditis in 1, and was considered idiopathic in 8. All elite athletes are alive with a mean follow-up of 62 months and 7 continue in their sports: 3 after radiofrequency catheter ablation (of WPW in 2 and AF with maze-type nonfluoroscopic approach in 1) and 4 after a period of de-training. CONCLUSIONS AF, occurring in young elite athletes and affecting only males, is one of the most frequent causes of prolonged palpitations and is reproduced easily by transesophageal atrial pacing or electrophysiologic testing. AF may be a cause of disqualification from sports eligibility, but may disappear if the athletic activity is stopped for an adequate period of time, if trigger mechanisms are corrected (i.e., WPW), or if the substrate is modified.
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Affiliation(s)
- F Furlanello
- S. Raffaele Scientific Institute, Milan-Rome, Rome, Italy
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Furlanello F, Bertoldi A, Dallago M, Furlanello C, Fernando F, Inama G, Pappone C, Chierchia S. Cardiac arrest and sudden death in competitive athletes with arrhythmogenic right ventricular dysplasia. Pacing Clin Electrophysiol 1998; 21:331-5. [PMID: 9474700 DOI: 10.1111/j.1540-8159.1998.tb01116.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.0] [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] [Indexed: 02/06/2023]
Abstract
Arrhythmogenic right ventricular dysplasia (ARVD) is a predisposing factor for sport-related cardiac arrest (CA), sudden cardiac death (SD), and life-threatening ventricular tachyarrhythmias (VT). The aim of this study was the assessment of athletes with ARVD, particularly the CA survivors. From 1974 to January 1996, 1642 competitive athletes (aver. 25.5 yr.), 136 of whom were top level athletes (TLA), were studied for important arrhythmic manifestations. All athletes underwent an individualised study protocol including a series of non invasive and invasive diagnostic techniques. One hundred and one athletes (90 males, 11 females, aver. 25.9 yr.) were diagnosed as being affected by ARVD on the basis of the WHO/ISFC criteria. The same percentage (about 6%) of ARVD is present in both the general arrhythmic athletes population and in the subgroup of TLA. Prevalence of ARVD among athletes with CA or SD is high (respectively 23% and 25%), confirming the observation that ARVD is one of the major causes of SD in Italian athletes. All CA were athletic activity related, indicating the potentiality of exercise as a cause of electrical destabilisation in subjects with ARVD. In athletes with documented ARVD intense sport activity has to be proscribed. In athletes at risk of CA or SD an aggressive treatment, ICD implantation and RF catheter ablation must be taken into consideration.
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Affiliation(s)
- F Furlanello
- S. Raffaele Scientific Institute, Milan, Rome, Italy
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Bertoldi A, Furlanello F, Dallago M, Vergara G, Bettini R, Durante G, Gramegna L, Visonà L, Accardi R, Caselli G, Blffi A. Even top level «éliteå athletes may complain of serious arrhythmic manifestations. Resuscitation 1993. [DOI: 10.1016/0300-9572(93)90020-q] [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: 10/26/2022]
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Furlanello F, Bertoldi A, Bettini R, Dallago M, Vergara G. Life-threatening tachyarrhythmias in athletes. Pacing Clin Electrophysiol 1992; 15:1403-11. [PMID: 1384004] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The arrhythmias in competitive athletes may be classified as "benign," "paraphysiological" due to prolonged athletic training, or "pathological" due to hemodynamic effects on the athletic performance-risk-arrhythmogenic substratum. Pathological arrhythmias include life-threatening forms that are severe enough to produce symptoms (presyncope, syncope, cardiac arrest) during athletic activity. These forms are in particular rapid VT, VF, torsades de pointes, preexcited atrial fibrillation, sinus atrial and AV block. Our study population includes 766 competitive athletes, mean age 21.1 years (74 top international level), investigated with a cardioarrhythmological work-up for symptoms and for arrhythmias from 1974 to June 30, 1991. Three leading categories, represented by 16 aborted sudden death, 8 sudden death, and 7 induced VF (by EES or TAP) athletes, are described. All athletes with life-threatening arrhythmias, previously as asymptomatic or with minor symptoms had an arrhythmogenic substratum due to underlying silent cardiopathy or primary arrhythmic disorders. Athletic activity can be regarded as a trigger of electrical destabilization.
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Affiliation(s)
- F Furlanello
- Divisione di Cardiologia e Centro Aritmologico, Trento, Italy
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Furlanello F, Guarnerio M, Inama G, Vergara G, Del Greco M, Bertoldi A, Dallago M. Long-term follow-up of patients with inducible supraventricular tachycardia treated with flecainide or propafenone: therapy guided by transesophageal electropharmacologic testing. Am J Cardiol 1992; 70:19A-25A. [PMID: 1509994 DOI: 10.1016/0002-9149(92)91073-d] [Citation(s) in RCA: 2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report our experience with flecainide and propafenone therapy for inducible supraventricular tachycardias and paroxysmal supraventricular tachycardias due to atrioventricular (AV) nodal reentry or the Wolff-Parkinson-White syndrome. We performed an electropharmacologic test (ET) that consisted of first inducing a clinical arrhythmia by transesophageal atrial pacing (TAP) protocol. This was followed by intravenous drug administration and TAP reevaluation, either after acute intravenous administration or in oral steady-state. We used ET with flecainide and/or propafenone to study 2 groups of patients at least 3 years before the long-term clinical observation period. The first group was comprised of 58 patients with reciprocating tachycardias--due to AV node reentry in 17 (29.3%) and anomalous pathway in 41 (70.7%). Twelve (29.3%) of the latter had reciprocating tachycardias, 15 (36.6%) had atrial fibrillation, and 14 (34.2%) had both arrhythmias. During ET, flecainide was administered to 42 patients, and the ET was considered positive in 28 (66.7%). Propafenone was administered to 32 patients, with positive results in 15 (46.9%). In 15 patients, both flecainide and propafenone were tested, 8 receiving flecainide after a negative ET with propafenone, and 7 receiving propafenone after a negative ET with flecainide. In the first group, the ET was positive in 7 (87.5%), and in the second group, it was positive in 3 (42.9%). In a follow-up of 40.1 +/- 11 months, 38 (65.5%) patients had positive outcomes, 5 (8.6%) had to stop receiving the drugs because of side effects, 3 (5.2%) stopped because of inefficacy, and 12 (20.7%) dropped out.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- F Furlanello
- Divisione di Cardiologia e Centro Aritmologico, Ospedale S. Chiara, Trento, Italy
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Guarnerio M, Furlanello F, Vergara G, Inama G, Del Greco M, Accardi R, Dallago M. Electropharmacological testing by transoesophageal atrial pacing in inducible supraventricular tachyarrhythmias. A good approach for selection of long-term anti-arrhythmic therapy. Eur Heart J 1992; 13:763-9. [PMID: 1623864 DOI: 10.1093/oxfordjournals.eurheartj.a060253] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [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] [Indexed: 12/27/2022] Open
Abstract
Sixty-eight patients with disabling episodes of inducible supraventricular tachyarrhythmia were tested electropharmacologically by transoesophageal atrial pacing. Using this technique we induced clinical arrhythmia in 67 (98.5%); 26 (38.8%) had a reciprocating tachycardia due to AV node reentry and 41 (61.2%) a by-pass tract. In the latter we induced a reciprocating tachycardia in 12 (29.3%), atrial fibrillation in 25 (36.5%) and both in 14 (34.2%). We then performed an anti-arrhythmic drug test and a transoesophageal reevaluation either after acute intravenous drug administration or during oral steady state. Altogether we tested 111 drugs or a combination of drugs before the results were considered positive; all patients tolerated the procedure well and were discharged with the drug or combination of drugs judged effective. At follow-up of 16.6 +/- 8.5 months, 42 patients (62.7%) were symptom-free, 17 (25.3%) had minor and non-disabling relapses, six (9%) stopped the drug because of inefficacy (1-1.5%) or side effects (5-7.5%); two (3%) dropped out. We conclude that electropharmacological testing with transoesophageal pacing constitutes a very good approach for inducible supraventricular tachyarrhythmias: it permits selection of optimal long-term anti-arrhythmic treatment and is well tolerated, only slightly invasive and without adverse effects.
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Affiliation(s)
- M Guarnerio
- Divisione di Cardiologia, Ospedale S. Chiara, Trento, Italy
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Furlanello F, Bertoldi A, Bettini R, Vergara G, Dallago M. [Supraventricular reentry tachycardia and athletic fitness]. Cardiologia 1991; 36:117-20. [PMID: 1817765] [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] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Paroxysmal supraventricular reciprocating tachycardias (PSRT) which are due to a different type of reentry including the atrioventricular reentry circuit of Wolff-Parkinson-White (WPW) syndrome, may disturb the professional career of an athlete. Moreover even severe episodes of preexcited atrial fibrillation of WPW may occur. PSRT in athletes may present various clinical consequences: unimportant symptoms, or severe hemodynamic effects on the athletic performance particularly during sports activity at intrinsic high risk. The athletes are evaluated by clinical protocol which includes Holter monitoring ergometric test, echocardiography study, thyroid check and transesophageal electrophysiologic study at rest and during exercise. The arrhythmological study should be carefully performed in order to exclude an underlying heart disease, to study electrophysiological mechanisms and possible hemodynamic effect sports activity relate of the inducible and clinical tachyarrhythmias. Sometimes, these PSRT may disappear after interruption of athletic activity because of modifications of electrophysiological conditions related to the sports activity.
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Affiliation(s)
- F Furlanello
- Divisione di Cardiologia, Ospedale S Chiara, Trento
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Bettini R, Furlanello F, Vecchiet L, Resina A, Visonà L, Musilli O, Dallago M. [Cardiac rhythm in athletes: a Holter study of top level and ex-professional football players]. G Ital Cardiol 1990; 20:810-8. [PMID: 2079182] [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] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The study we performed aimed at identifying the arrhythmological pattern in the football player. Between 1984 and 1989, 50 top level football players (group A) from the National Olympic team and from the National A team, average age 24.2 years (min. 19, max. 32), underwent Holter monitoring. The recordings were carried out in different environmental conditions according tot he programmes of the team and the number of recordings depended on how long each football player stayed in the National team. Moreover, 40 trainers (group B) from the Italian football teams, average age 38.4 years (min. 32, max. 57), all of whom had formerly been professional high-level football players practising intensive physical exercise for professional reasons, underwent one 24 h Holter monitoring. RESULTS. Group A: 2621 hours of monitoring were able to be analysed in 48/50 football players. Sinus node pauses greater than or equal to 1750 ms were found in 21/48 (43.7%) with a maximum of 3740 ms on altitude in 1/21, second degree atrioventricular block in 8/48 (16.7%) with a maximum of 5400 ms on altitude in 1/8, supraventricular ectopic beats in 13/48 (27%), ventricular ectopic beats in 26/48 (54.1%) which were complex (cl. Lown greater than or equal to 3) in 7/26. Group B: 882.30 hours of monitoring were able to be analysed in 39/40 former football players. Sinus node pauses greater than or equal to 1750 ms were found in 18/39 (46.1%) with a maximum of 2280 ms in 7/18, second degree atrioventricular block in 1/39 (2.6%) with a maximum of 2400 ms, supraventricular ectopic beats in 32/39 (82%), ventricular ectopic beats in 24/39 (61.5%) which were complex in 5/24.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- R Bettini
- Divisione di Cardiologia e Centro Aritmologico, Ospedale S. Chiara, Trento
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