Browsing by Author "Pereira, H."
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- Position statement on bioresorbable vascular scaffolds in PortugalPublication . Teles, R.; Pereira, H.; Cyrne-Carvalho, H.; Patrício, L.; Santos, R.; Baptista, J.; Pipa, J.; Farto-Abreu, P.; Faria, H.; Ramos, S.; Gama-Ribeiro, V.; Martins, D.; Almeida, M.BACKGROUND: Bioresorbable vascular scaffolds (BVS) were recently approved for percutaneous coronary intervention in Europe. The aim of this position statement is to review the information and studies on available BVS, to stimulate discussion on their use and to propose guidelines for this treatment option in Portugal. METHODS AND RESULTS: A working group was set up to reach a consensus based on current evidence, discussion of clinical case models and individual experience. The evidence suggests that currently available BVS can produce physiological and clinical improvements in selected patients. There are encouraging data on their durability and long-term safety. Initial indications were grouped into three categories: (a) consensual and appropriate - young patients, diabetic patients, left anterior descending artery, long lesions, diffuse disease, and hybrid strategy; (b) less consensual but possible - small collateral branches, stabilized acute coronary syndromes; and (c) inappropriate - left main disease, tortuosity, severe calcification. CONCLUSION: BVS are a viable treatment option based on the encouraging evidence of their applicability and physiological and clinical results. They should be used in appropriate indications and will require technical adaptations. Outcome monitoring and evaluation is essential to avoid inappropriate use. It is recommended that medical societies produce clinical guidelines based on high-quality registries as soon as possible.
- Thrombus aspiration in patients with ST-elevation myocardial infarction: results of a national registry of interventional cardiologyPublication . Pereira, H.; Caldeira, D.; Teles, R.; Costa, M.; Silva, P.; Ribeiro, V.; Brandão, V.; Martins, D.; Matias, F.; Pereira-Machado, F.; Baptista, J.; Abreu, P.; Santos, R.; Drummond, A.; Carvalho, H.; Calisto, J.; Silva, J.; Pipa, J.; Marques, J.; Sousa, P.; Fernandes, R.; Ferreira, R.; Ramos, S.; Oliveira, E.; Almeida, M.BACKGROUND: We aimed to evaluate the impact of thrombus aspiration (TA) during primary percutaneous coronary intervention (P-PCI) in 'real-world' settings. METHODS: We performed a retrospective study, using data from the National Registry of Interventional Cardiology (RNCI 2006-2012, Portugal) with ST-elevation myocardial infarction (STEMI) patients treated with P-PCI. The primary outcome, in-hospital mortality, was analysed through adjusted odds ratio (aOR) and 95% confidence intervals (95%CI). RESULTS: We assessed data for 9458 STEMI patients that undergone P-PCI (35% treated with TA). The risk of in-hospital mortality with TA (aOR 0.93, 95%CI:0.54-1.60) was not significantly decreased. After matching patients through the propensity score, TA reduced significantly the risk of in-hospital mortality (OR 0.58, 95%CI:0.35-0.98; 3500 patients). CONCLUSIONS: The whole cohort data does not support the routine use of TA in P-PCI, but the results of the propensity-score matched cohort suggests that the use of selective TA may improve the short-term risks of STEMI.
- Tromboembolismo venoso em idade pediátricaPublication . Pereira, H.; Sousa, M.; Isvarla, P.; Ferreira, N.Introdução: O tromboembolismo venoso é uma entidade rara em idade pediátrica, de etiologia multi-fatorial, sendo importante estabelecer o seu diagnóstico e avaliar o prognóstico funcional. Caso clínico: Adolescente de 11 anos, habitualmente saudável, observada no Serviço de Urgência por clínica compatível com trombose venosa superficial do membro superior. Da investigação realizada, controlo analítico incluindo velocidade de sedimentação, coagulação, auto-imunidade e homocisteína com valores dentro da normalidade. Efetuado estudo genético de trombofilias, apresentando mutação do gene da protrombina (G20210A, em heterozigotia) e mutações do PAI-1 (4G e -844A), associadas a estado de hipercoagulabilidade, com indicação para profilaxia com heparina de baixo peso molecular em situações de maior risco. Discussão/Conclusão: A raridade do evento tromboembólico, associada à localização atípica do quadro inaugural, conduziu a uma investigação exaustiva. As alterações da trombofilia podem ter a sua manifestação inicial na adolescência, sendo importante a sua deteção pelas implicações no dia-a-dia do indivíduo e necessidade de atitudes profiláticas em situações particulares.