FLAVIO TARASOUTCHI
Projetos de Pesquisa
Unidades Organizacionais
Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina
LIM/11 - Laboratório de Cirurgia Cardiovascular e Fisiopatologia da Circulação, Hospital das Clínicas, Faculdade de Medicina
LIM/64, Hospital das Clínicas, Faculdade de Medicina - Líder
LIM/11 - Laboratório de Cirurgia Cardiovascular e Fisiopatologia da Circulação, Hospital das Clínicas, Faculdade de Medicina
LIM/64, Hospital das Clínicas, Faculdade de Medicina - Líder
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conferenceObject Predictors of contractile reserve on dobutamine stress echocardiography in patients with classical low-flow, low-gradient aortic stenosis(2019) ROSA, V. Emer Egypto; RIBEIRO, H. B.; SAMAPIO, R. O.; MORAIS, T. C.; ROSA, M. E. E.; SANTIS, A. S. A. L. De; FERNANDES, J. R. C.; SPINA, G. S.; VIEIRA, M. L. C.; POMERANTZEFF, P. M. A.; ROCHITTE, C. E.; MATHIAS JR., W.; TARASOUTCHI, F.- Myocardial Fibrosis in Classical Low-Flow, Low-Gradient Aortic Stenosis Insights From a Cardiovascular Magnetic Resonance Study(2019) ROSA, Vitor E. E.; RIBEIRO, Henrique B.; SAMPAIO, Roney O.; MORAIS, Thamara C.; ROSA, Marcela E. E.; PIRES, Lucas J. T.; VIEIRA, Marcelo L. C.; MATHIAS JR., Wilson; ROCHITTE, Carlos E.; SANTIS, Antonio S. A. L. de; FERNANDES, Joao Ricardo C.; ACCORSI, Tarso A. D.; POMERANTZEFF, Pablo M. A.; RODES-CABAU, Josep; PIBAROT, Philippe; TARASOUTCHI, FlavioBackground: Few data exist on the degree of interstitial myocardial fibrosis in patients with classical low-flow, low-gradient aortic stenosis (LFLG-AS) and its association with left ventricular flow reserve (FR) on dobutamine stress echocardiography. This study sought to evaluate the diffuse interstitial fibrosis measured by T1 mapping cardiac magnetic resonance technique in LFLG-AS patients with and without FR. Methods: Prospective study including 65 consecutive patients (41 LFLG-AS [mean age, 67.1 +/- 8.4 years; 83% men] and 24 high-gradient aortic stenosis used as controls) undergoing dobutamine stress echocardiography to assess FR and cardiac magnetic resonance to determine the extracellular volume (ECV) fraction of the myocardium, indexed ECV (iECV) to body surface area and late gadolinium enhancement. Results: Interstitial myocardial fibrosis measured by iECV was higher in patients with LFLG-AS with and without FR as compared with high-gradient aortic stenosis (35.25 +/- 9.75 versus 32.93 +/- 11.00 versus 21.19 +/- 6.47 mL/m(2), respectively; P<0.001). However, both ECV and iECV levels were similar between LFLG-AS patients with and without FR (P=0.950 and P=0.701, respectively). Also, FR did not correlate significantly with ECV (r=-0.16, P=0.31) or iECV (r=0.11, P=0.51). Late gadolinium enhancement mass was also similar in patients with versus without FR but lower in high-gradient aortic stenosis (13.3 +/- 10.2 versus 10.5 +/- 7.5 versus 4.8 +/- 5.9 g, respectively; P=0.018). Conclusions: Patients with LFLG-AS have higher ECV, iECV, and late gadolinium enhancement mass compared with high-gradient aortic stenosis. Moreover, among patients with LFLG-AS, the degree of myocardial fibrosis was similar in patients with versus those without FR. These findings suggest that diffuse myocardial fibrosis may not be the main factor responsible for the absence of FR in LFLG-AS patients.
- Impact of Acute Kidney Injury on Short- and Long-term Outcomes After Transcatheter Aortic Valve Implantation(2019) NUNES FILHO, Antonio C. B.; KATZ, Marcelo; CAMPOS, Carlos M.; CARVALHO, Luiz A.; SIQUEIRA, Dimytri A.; TUMELERO, Rogerio T.; PORTELLA, Antenor L. F.; ESTEVES, Vinicius; PERIN, Marco A.; SARMENTO-LEITE, Rogerio; LEMOS NETO, Pedro A.; TARASOUTCHI, Flavio; BEZERRA, Hiram G.; BRITO JR., Fabio S. deIntroduction and objectives: Acute kidney injury (AKI) is frequently observed after transcatheter aortic valve implantation (TAVI) and is associated with higher mortality. However, the impact of AKI on long-term outcomes remains controversial. Therefore, we sought to evaluate the impact of AKI on short- and long-term outcomes following TAVI using the Valve Academic Research Consortium 2 criteria. Methods: Consecutive patients (n = 794) with severe aortic stenosis who underwent TAVI were included in a multicenter Brazilian registry. Logistic regression analysis was used to identify predictors of AKI. Four-year outcomes were determined as Kaplan-Meier survival curves, and an adjusted landmark analysis was used to test the impact of AKI on mortality among survivors at 12 months. Results: The incidence of AKI after TAVI was 18%. Independent predictors of AKI were age, diabetes mellitus, major or life-threatening bleeding and valve malpositioning. Acute kidney injury was independently associated with higher risk of all-cause death (adjusted HR, 2.8; 95%CI, 2.0-3.9; P < .001) and cardiovascular mortality (adjusted HR, 2.9; 95%CI, 1.9-4.4; P < .001) over the entire follow-up period. However, when considering only survivors at 12 months, there was no difference in both clinical endpoints (adjusted HR, 1.2; 95%CI, 0.5-2.4; P = .71, and HR, 0.7; 95%CI, 0.2-2.1; P = .57, respectively). Conclusions: Acute kidney injury is a frequent complication after TAVI. Older age, diabetes, major or life-threatening bleeding, and valve malpositioning were independent predictors of AKI. Acute kidney injury is associated with worse short- and long-term outcomes. However, the major impact of AKI on mortality is limited to the first year after TAVI.
conferenceObject Short- and Long-term Outcomes After Surgical Aortic Valve Replacement in Patients With Classical Low-flow, Low-gradient Aortic Stenosis(2019) ROSA, Vitor E.; RIBEIRO, Henrique B.; SAMPAIO, Roney O.; MORAIS, Thamara C.; ROSA, Marcela E.; SANTIS, Antonio S. De; FERNANDES, Joao Ricardo C.; SPINA, Guilherme S.; VIEIRA, Marcelo L.; POMERANTZEFF, Pablo M.; ROCHITTE, Carlos E.; MATHIAS JR., Wilson; TARASOUTCHI, FlavioconferenceObject Insights Into Sex Differences in Transfemoral Transcatheter Aortic Valve Implantation From 2007-2018: From the CENTER Collaboration, A Global Patient-Level Analysis of 12,381 Patients(2019) CHANDRASEKHAR, Jaya; VLASTRA, Wieneke; TCHETCHE, Didier; BRITO JR., Fabio; BARBANTI, Marco; KORNOWSKI, Ran; LATIB, Azeem; D'ONOFRIO, Augusto; RIBICHINI, Flavio; BAAN, Jan; TIJSSEN, Jan; MORENO, Raul; DUMONTEIL, Nicolas; TARASOUTCHI, Flavio; SARTORI, Samantha; D'ERRIGO, Paola; TARANTINI, Giuseppe; LUNARDI, Mattia; ORVIN, Katia; PAGNESI, Matteo; BERENGUER, Alberto; MODINE, Thomas; DANGAS, George; MEHRAN, Roxana; PIEK, Jan; DELEWI, RonakconferenceObject Predictors of short- and mid-term outcomes after TAVR in low-flow, low-gradient aortic stenosis(2019) ROSA, V. Emer Egypto; ECHEVERRI, D.; SZTEJFMAN, M.; JAIKEL, L. A. G.; DAGER, A.; ABUD, M.; CHARRY, P.; CHAUVET, A. A.; TARASOUTCHI, F.; CURA, F.; RIBEIRO, H. B.- Early Diagnosis and Treatment in Infective Endocarditis: Challenges for a Better Prognosis(2019) SOBREIRO, Daniely Iadocico; SAMPAIO, Roney Orismar; SICILIANO, Rinaldo Focaccia; BRAZIL, Calila Vieira Andrade; BRANCO, Carlos Eduardo de Barros; LOPES, Antonio Sergio de Santis Andrade; TARASOUTCHI, Flavio; STRABELLI, Tania Mara Varejao
- Sex Differences in Transfemoral Transcatheter Aortic Valve Replacement(2019) VLASTRA, Wieneke; CHANDRASEKHAR, Jaya; BLANCO, Bruno Garcia Del; TCHETCHE, Didier; BRITO, Fabio S. de; BARBANTI, Marco; KORNOWSKI, Ran; LATIB, Azeem; D'ONOFRIO, Augusto; RIBICHINI, Flavio; BAAN, Jan; TIJSSEN, Jan G. P.; MORENO, Raul; DUMONTEIL, Nicolas; TARASOUTCHI, Flavio; SARTORI, Samantha; D'ERRIGO, Paola; TARANTINI, Giuseppe; LUNARDI, Mattia; ORVIN, Katia; PAGNESI, Matteo; BERENGUER, Alberto; MODINE, Thomas; DANGAS, George; MEHRAN, Roxana; PIEK, Jan J.; DELEWI, RonakBACKGROUND Transfemoral aortic valve replacement (TAVR) is a guideline-recommended treatment option for patients with severe aortic valve stenosis. Women and men present with different baseline characteristics, which may influence procedural outcomes. OBJECTIVES This study sought to evaluate differences between women and men undergoing transfemoral TAVR across the globe during the last decade. METHODS The CENTER (Cerebrovascular EveNts in patients undergoing TranscathetER aortic valve implantation with balloon-expandable valves versus self-expandable valves)-collaboration was a global patient level dataset of patients undergoing transfemoral TAVR (N = 12,381) from 2007 to 2018. In this retrospective analysis, the study examined differences in baseline patient characteristics, 30-day stroke and mortality, and in-hospital outcomes between female and male patients. The study also assessed for temporal changes in outcomes and predictors for mortality per sex. RESULTS We included 58% (n = 7,120) female and 42% (n = 5,261) male patients. Women had higher prevalence of hypertension and glomerular filtration rate <30 ml/min/1.73 m(2) but lower prevalence of all other traditional cardiovascular comorbidities. Both sexes had similar rates of 30-day stroke (2.3% vs. 2.5%; p = 0.53) and mortality (5.9% vs. 5.5%; p = 0.17). In contrast, women had a 50% higher risk of life-threatening or major bleeding (6.7% vs. 4.4%; p < 0.01). Over the study period, mortality rates decreased to a greater extent in men than in women (60% vs. 50% reduction; both p < 0.001), with no reductions in stroke rates over time. CONCLUSIONS In this global collaboration, women and men had similar rates of 30-day mortality and stroke. However, women had higher rates of procedural life-threatening or major bleeding after TAVR. Between 2007 and 2018, mortality rates decreased to a greater extent in men than in women. (C) 2019 Published by Elsevier on behalf of the American College of Cardiology Foundation.
conferenceObject Predictors of renal function improvement in patients with chronic kidney disease undergoing TAVR(2019) LEMES, M. V. S.; BACELAR, A. C.; ROSA, V. E. E.; CAIXETA, A. M.; LEMOS, P. A.; RIBEIRO, H. B.; ALMEIDA, B. O.; MARIANI, J.; CAMPOS, C. A. H. M.; TARASOUTCHI, F.; FRANKEN, M.; BRITO, F. S.- Transcatheter implantation of aortic valve bioprosthesis: changing paradigms(2019) BRITO JUNIOR, Fabio Sandoli de; TARASOUTCHI, Flavio