Browsing by Author "Carvalho, M"
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- Acute Stroke Presenting As Syncope: Wallenberg SyndromePublication . Mesquita, A; Ferreira, P; Carvalho, M; Martins, M
- Characteristics and Outcomes of Patients With Cerebral Venous Sinus Thrombosis in SARS-CoV-2 Vaccine–Induced Immune Thrombotic ThrombocytopeniaPublication . Sánchez van Kammen, M; Aguiar de Sousa, D; Poli, S; Cordonnier, C; Heldner, M; van de Munckhof, A; Krzywicka, K; van Haaps, T; Ciccone, A; Middeldorp, S; Levi, M; Kremer Hovinga, J; Silvis, S; Hiltunen, S; Mansour, M; Arauz, A; Barboza, M; Field, T; Tsivgoulis, G; Nagel, S; Lindgren, E; Tatlisumak, T; Jood, K; Putaala, J; Ferro, J; Arnold, M; Coutinho, J; Sharma, A; Elkady, A; Negro, A; Günther, A; Gutschalk, A; Schönenberger, S; Buture, A; Murphy, S; Paiva Nunes, A; Tiede, A; Puthuppallil Philip, A; Mengel, A; Medina, A; Hellström Vogel, Å; Tawa, A; Aujayeb, A; Casolla, B; Buck, B; Zanferrari, C; Garcia-Esperon, C; Vayne, C; Legault, C; Pfrepper, C; Tracol, C; Soriano, C; Guisado-Alonso, D; Bougon, D; Zimatore, D; Michalski, D; Blacquiere, D; Johansson, E; Cuadrado-Godia, E; De Maistre, E; Carrera, E; Vuillier, F; Bonneville, F; Giammello, F; Bode, F; Zimmerman, J; d’Onofrio, F; Grillo, F; Cotton, F; Caparros, F; Puy, L; Maier, F; Gulli, G; Frisullo, G; Polkinghorne, G; Franchineau, G; Cangür, H; Katzberg, H; Sibon, I; Baharoglu, I; Brar, J; Payen, JF; Burrow, J; Fernandes, J; Schouten, J; Althaus, K; Garambois, K; Derex, L; Humbertjean, L; Lebrato Hernandez, L; Kellermair, L; Morin Martin, M; Petruzzellis, M; Cotelli, M; Dubois, MC; Carvalho, M; Wittstock, M; Miranda, M; Skjelland, M; Bandettini di Poggio, M; Scholz, M; Raposo, N; Kahnis, R; Kruyt, N; Huet, O; Sharma, P; Candelaresi, P; Reiner, P; Vieira, R; Acampora, R; Kern, R; Leker, R; Coutts, S; Bal, S; Sharma, S; Susen, S; Cox, T; Geeraerts, T; Gattringer, T; Bartsch, T; Kleinig, T; Dizonno, V; Arslan, YImportance: Thrombosis with thrombocytopenia syndrome (TTS) has been reported after vaccination with the SARS-CoV-2 vaccines ChAdOx1 nCov-19 (Oxford-AstraZeneca) and Ad26.COV2.S (Janssen/Johnson & Johnson). Objective: To describe the clinical characteristics and outcome of patients with cerebral venous sinus thrombosis (CVST) after SARS-CoV-2 vaccination with and without TTS. Design, setting, and participants: This cohort study used data from an international registry of consecutive patients with CVST within 28 days of SARS-CoV-2 vaccination included between March 29 and June 18, 2021, from 81 hospitals in 19 countries. For reference, data from patients with CVST between 2015 and 2018 were derived from an existing international registry. Clinical characteristics and mortality rate were described for adults with (1) CVST in the setting of SARS-CoV-2 vaccine-induced immune thrombotic thrombocytopenia, (2) CVST after SARS-CoV-2 vaccination not fulling criteria for TTS, and (3) CVST unrelated to SARS-CoV-2 vaccination. Exposures: Patients were classified as having TTS if they had new-onset thrombocytopenia without recent exposure to heparin, in accordance with the Brighton Collaboration interim criteria. Main outcomes and measures: Clinical characteristics and mortality rate. Results: Of 116 patients with postvaccination CVST, 78 (67.2%) had TTS, of whom 76 had been vaccinated with ChAdOx1 nCov-19; 38 (32.8%) had no indication of TTS. The control group included 207 patients with CVST before the COVID-19 pandemic. A total of 63 of 78 (81%), 30 of 38 (79%), and 145 of 207 (70.0%) patients, respectively, were female, and the mean (SD) age was 45 (14), 55 (20), and 42 (16) years, respectively. Concomitant thromboembolism occurred in 25 of 70 patients (36%) in the TTS group, 2 of 35 (6%) in the no TTS group, and 10 of 206 (4.9%) in the control group, and in-hospital mortality rates were 47% (36 of 76; 95% CI, 37-58), 5% (2 of 37; 95% CI, 1-18), and 3.9% (8 of 207; 95% CI, 2.0-7.4), respectively. The mortality rate was 61% (14 of 23) among patients in the TTS group diagnosed before the condition garnered attention in the scientific community and 42% (22 of 53) among patients diagnosed later. Conclusions and relevance: In this cohort study of patients with CVST, a distinct clinical profile and high mortality rate was observed in patients meeting criteria for TTS after SARS-CoV-2 vaccination.
- Cross-Sectional Epidemiological Study to Understand the Approach to Treatment in the Routine Care of Patients with Hemophilia B in Spain and PortugalPublication . Álvarez-Román, MT; Carvalho, M; Benítez-Hidalgo, O; Catarino, C; García-Frade, LJ; Rodríguez-López, M; Antunes, M; Fernández-Mosteirín, N; Kjöllerström, P; Morais, S; Galmes, B; López-Fernández, MF; Riera-Sans, L; Rodrigues, JF; Jiménez-Yuste, V; Salvado, RIntroduction: Treatment options for patients with hemophilia B (PWHB) have improved in the last decade, but epidemiological studies are required to optimize clinical management and define unmet needs. Objective: The objective of the study is to investigate current disease management and quality of life (QoL) in PWHB in Spain and Portugal. Methods: Epidemiological, cross-sectional, multicenter study with moderately severe and severe PWHB. Sociodemographic, epidemiological, clinical, treatment, and QoL data were collected retrospectively over a 24-month period. Results: Of the 75 patients included in the study, 78.7% received prophylactic treatment and 21.3% on demand; 65.3% were treated with SHL-FIX and 10.7% with rIX-FP. Bleeding occurred in 81.3%, mainly in the form of spontaneous bleeding. Prophylaxis resulted in a lower annualized bleeding rate, better joint health, and better QoL, compared to on-demand treatments. Patients treated with rIX-FP throughout the study had better disease control and QoL than those treated with SHL-FIX. Conclusion: With the largest sample to date of PWHB from Spain and Portugal, our understanding of the management and impact of hemophilia B is broadened and, in accordance with previous evidence, it shows the benefits of prophylaxis and the advantages that the FIX extended half life products life FIX can offer.
- Haemophilia A: Health and Economic Burden of a Rare Disease in PortugalPublication . Café, A; Carvalho, M; Crato, M; Faria, M; Kjollerstrom, P; Oliveira, C; Pinto, PR; Salvado, R; Dos Santos, AA; Silva, CHaemophilia A is a hereditary bleeding disorder, which has been considered rare and chronic. The burden of this disease in Portugal remains unknown. The aim of this study was to estimate the annualized cost and health burden of haemophilia A in Portugal.
- Hematoma Subdural em Pediatria Diagnosticar e Tratar PrecocementePublication . Carvalho, M; Leal, E; Santos, M; Ramos, J; Távora, L; Barata, DIntrodução: O hematoma subdural agudo não traumático é uma entidade rara em Pediatria. A presença de sintomas neurológicos de instalação aguda associada a anti coagulação obriga à exclusão desta entidade. Caso clínico: Apresentamos o caso de uma criança, do sexo masculino, de sete anos de idade, com prótese mitral mecânica, medicada com varfarina, que recorreu ao serviço de urgência por cefaleias intensas e progressivas, associadas a alteração no estado de consciência e convulsões. A nível laboratorial o INR (International Normalized Ratio) era de 4,2. Foi admitida na Unidade de Cuidados Intensivos Pediátricos (UCIP) em coma com anisocoria. Iniciou ventilação mecânica, medidas anti-edema cerebral e antiepilépticos. O exame de imagem mostrou hematoma subdural agudo à esquerda, com desvio da linha média. Foi submetida a craniotomia descompressiva, 56 horas após o início da sintomatologia, com recuperação clínica e actualmente sem sequelas. Conclusão: Este caso clínico ilustra a importância da suspeição clínica de hematoma subdural em doentes anti coagulados, bem como a necessidade de optimização das condições cirúrgicas e da utilização das técnicas não invasivas na monitorização do nível de consciência.
- Hemorragia Digestiva Alta Recorrente por Pseudo-Aneurisma da Artéria GastroduodenalPublication . Costa, PP; Carvalho, M; Belo, A; Garcia, V; Nobre, IOs autores apresentam o caso clínico de um homem de 39 anos de idade com antecedentes de pancreatite crónica, que apresenta um quadro de hemorragia digestiva alta recorrente, com repercussão hemodinâmica, endoscopias altas sucessivas sem alterações, e cujos exames imagiológicos revelam presença de mal-formação vascular do tronco celíaco. Na sequência de mais um episódio de hemorragia digestiva alta com franca repercussão hemodinâmica, é internado no Serviço de Medicina,realizando arteriografia selectiva que mostrou a presença de pseudo-aneurisma da artéria gastroduodenal. Após a embolização, verificou-se uma progressiva e mantida melhoria da sua situação clínica. Descrevem os autores um quadro de hemorragia digestiva alta recorrente por malformação arterial associada à pancreatite crónica.
- Interventional Algorithms for the Control of Coagulopathic Bleeding in Surgical, Trauma, and Postpartum Settings: Recommendations From the Share Network GroupPublication . Carvalho, M; Rodrigues, A; Gomes, M; Carrilho, A; Robalo Nunes, A; Orfão, R; Alves, Â; Aguiar, J; Campos, MSeveral clinical settings are associated with specific coagulopathies that predispose to uncontrolled bleeding. With the growing concern about the need for optimizing transfusion practices and improving treatment of the bleeding patient, a group of 9 Portuguese specialists (Share Network Group) was created to discuss and develop algorithms for the clinical evaluation and control of coagulopathic bleeding in the following perioperative clinical settings: surgery, trauma, and postpartum hemorrhage. The 3 algorithms developed by the group were presented at the VIII National Congress of the Associação Portuguesa de Imuno-hemoterapia in October 2013. They aim to provide a structured approach for clinicians to rapidly diagnose the status of coagulopathy in order to achieve an earlier and more effective bleeding control, reduce transfusion requirements, and improve patient outcomes. The group highlights the importance of communication between different specialties involved in the care of bleeding patients in order to achieve better results.
- The Cutaneous Silent Period in Motor Neuron DiseasePublication . Castro, J; Swash, M; Carvalho, MObjective: To investigate the cutaneous silent period (CSP) by measuring its onset latency, duration and amount signal suppression in patients with motor neuron disease (MND) grouped according to the intensity of upper motor neuron involvement (UMN), and to test the effect of contralateral hand contraction. Methods: Painful stimulation was applied at the V finger, and contraction recorded from the abductor digiti minimi (ADM) muscle (baseline condition). Afterwards, CSP was studied during strong contralateral ADM contraction (test condition). 10-15 consecutive traces were recorded for each condition, signals were rectified, averaged, and analyzed offline. Results: 46 patients were investigated, 15 with progressive muscular atrophy (PMA), 16 with typical amyotrophic lateral sclerosis (ALS), 15 with primary lateral sclerosis/predominant UMN-ALS (PLS+UMN-ALS), and 28 controls. In the baseline condition, all MND groups showed delayed onset latencies (p = 0.001). There was no significant difference in the CSP duration. Suppression was lower in the PLS + UMN-ALS group (p = 0.004). In the control group, contralateral contraction did not change CSP, but onset latency shortened significantly in the PMA group. Conclusions: CSP onset latency is delayed in all investigated groups of MND, including in PMA, indicating subclinical UMN involvement. Changes in CSP can indicate UMN lesion in MND. Significance: CSP should be explored to identify UMN involvement in MND.