28 research outputs found

    Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

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    Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

    Rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART): Study protocol for a randomized controlled trial

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    Background: Acute respiratory distress syndrome (ARDS) is associated with high in-hospital mortality. Alveolar recruitment followed by ventilation at optimal titrated PEEP may reduce ventilator-induced lung injury and improve oxygenation in patients with ARDS, but the effects on mortality and other clinical outcomes remain unknown. This article reports the rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART). Methods/Design: ART is a pragmatic, multicenter, randomized (concealed), controlled trial, which aims to determine if maximum stepwise alveolar recruitment associated with PEEP titration is able to increase 28-day survival in patients with ARDS compared to conventional treatment (ARDSNet strategy). We will enroll adult patients with ARDS of less than 72 h duration. The intervention group will receive an alveolar recruitment maneuver, with stepwise increases of PEEP achieving 45 cmH(2)O and peak pressure of 60 cmH2O, followed by ventilation with optimal PEEP titrated according to the static compliance of the respiratory system. In the control group, mechanical ventilation will follow a conventional protocol (ARDSNet). In both groups, we will use controlled volume mode with low tidal volumes (4 to 6 mL/kg of predicted body weight) and targeting plateau pressure &lt;= 30 cmH2O. The primary outcome is 28-day survival, and the secondary outcomes are: length of ICU stay; length of hospital stay; pneumothorax requiring chest tube during first 7 days; barotrauma during first 7 days; mechanical ventilation-free days from days 1 to 28; ICU, in-hospital, and 6-month survival. ART is an event-guided trial planned to last until 520 events (deaths within 28 days) are observed. These events allow detection of a hazard ratio of 0.75, with 90% power and two-tailed type I error of 5%. All analysis will follow the intention-to-treat principle. Discussion: If the ART strategy with maximum recruitment and PEEP titration improves 28-day survival, this will represent a notable advance to the care of ARDS patients. Conversely, if the ART strategy is similar or inferior to the current evidence-based strategy (ARDSNet), this should also change current practice as many institutions routinely employ recruitment maneuvers and set PEEP levels according to some titration method.Hospital do Coracao (HCor) as part of the Program 'Hospitais de Excelencia a Servico do SUS (PROADI-SUS)'Brazilian Ministry of Healt

    Physical and Biological Properties of a High-Plasticity Tricalcium Silicate Cement

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    Introduction. Mineral Trioxide Aggregate (MTA) is a tricalcium-based silicate, dicalcium silicate matrix. Despite its good biologic properties, some clinicians still claim to have difficulties in handling MTA after its preparation due to its sandy consistency. The aim of the present study was to evaluate the physicochemical properties and cytotoxicity of MTA Repair HP (Angelus, Londrina, PR, Brazil) compared with MTA Angelus (Angelus, Londrina, PR, Brazil). Materials and Method. The properties assessed were particle size, setting time, flow, film thickness, radiopacity, water solubility, compressive strength, and cytotoxicity. Statistical analysis was performed considering p < 0.05 as statistically significant. Results. For radiopacity, water absorption and solubility MTA Repair HP were statistically similar to MTA Angelus. The MTA Angelus had statistically different film thickness values, higher than MTA Repair HP (p < 0.05). Besides, MTA Angelus showed a lower and statistically different compressive strength after 28 days than MTA Repair HP (p<0.05). Additionally, MTA Repair HP set more slowly (p < 0.05). Relative to cell viability, MTA Repair HP was statistically similar to MTA Angelus after 24 and 48 h in cell viability. Conclusions. The MTA Repair HP presented similar cell viability, lower film thickness, higher flow, setting time, and compressive strength values after 28 days than MTA Angelus. In general, the MTA Repair HP presented physicochemical and biological properties similar to the MTA Angelus

    Hipertensão arterial na cidade de São Paulo: prevalência referida por contato telefônico Hipertensión arterial en la ciudad de São Paulo: prevalencia referida por contacto telefónico Hypertension in the city of São Paulo: self-reported prevalence assessed by telephone surveys

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    FUNDAMENTO: Pouco se conhece sobre a prevalência da hipertensão arterial na cidade de São Paulo, SP, Brasil. OBJETIVO: Identificar a prevalência da hipertensão referida na cidade de São Paulo. MÉTODOS: Realizaram-se 613 entrevistas por telefone, a partir das listas residenciais do sistema de telefonia fixa. A amostra foi calculada com prevalência estimada de hipertensão em 20,0%. RESULTADOS: A prevalência referida de hipertensão foi de 23,0% e 9,0% dos entrevistados referiram que o valor de sua última medida da pressão foi maior que 140/90 mmHg, porém não tinham conhecimento de que eram hipertensos, totalizando uma prevalência de 32,0%. Os hipertensos referiram que: 89,0% fazem tratamento e 35,2% estavam controlados; 27,0% faltam às consultas; 16,2% deixam de tomar os remédios; 14,8% apresentam história de acidente vascular encefálico, 27,8% cardiopatia e 38,7% hipercolesterolemia; 71,2% receberam orientação para diminuir sal, 64,6% para realizar atividade física, 60,0% para perder peso e 26,2% para controlar estresse; e 78,9% mediam a pressão regularmente. Houve relação estatisticamente significante (p FUNDAMENTO: Poco se conoce sobre la prevalencia de la hipertensión arterial en la ciudad de São Paulo, SP, Brasil. OBJETIVO: Identificar la prevalencia de la hipertensión referida en la ciudad de São Paulo. MÉTODOS: Se realizaron 613 entrevistas por teléfono, a partir de las listas residenciales del sistema de telefonía fija. La muestra fue calculada con prevalencia estimada de hipertensión en 20,0%. RESULTADOS: La prevalencia referida de hipertensión fue de 23,0% y 9,0% de los entrevistados refirieron que el valor de su última medición de la presión fue mayor que 140/90 mmHg, sin embargo no sabían que eran hipertensos, totalizando una prevalencia de 32,0%. Los hipertensos refirieron que: 89,0% hacen tratamiento y 35,2% estaban controlados; 27,0% faltan a las consultas; 16,2% dejan de tomar los remedios; 14,8% presentan historia de accidente cerebro vascular, 27,8% cardiopatía y 38,7% hipercolesterolemia; 71,2% recibieron orientación de disminuir la sal, 64,6% de realizar actividad física, 60,0% para perder peso y 26,2% de controlar el stress; y 78,9% medían la presión regularmente. Hubo relación estadísticamente significativa (p BACKGROUND: Little is known about the prevalence of hypertension in São Paulo, Brazil. OBJECTIVE: To identify the prevalence of self-reported hypertension in the city of São Paulo. METHODS: There were 613 telephone interviews using directories of household landlines. The sample was calculated with an estimated prevalence of hypertension in 20.0%. RESULTS: The prevalence of self-reported hypertension was 23.0% and 9.0% of respondents reported that the value of their last pressure measurement was greater than 140/90 mmHg, but they were unaware that they were hypertensive, with a total prevalence 32.0%. Hypertensive patients reported that: 89.0% were under treatment and 35.2% were controlled; 27.0% miss medical appointments; 16.2% stop taking drugs; 14.8% have a history of stroke; 27.8% had heart disease and 38.7% had hypercholesterolemia; 71.2% received advice to reduce salt, 64.6% to perform physical activity, 60.0% to lose weight loss and 26.2% to control stress; and 78.9% measured pressure regularly. There was a statistically significant relation (p < 0.05) for: 1) missing medical appointments with longer treatment and irregular health monitoring; 2) stop taking the drugs with smoking, alcohol and failure to monitore health; 3) carry out treatment for hypertension with dyslipidemia, higher age and longer use of contraceptives for women; and 4) body mass index changed with diabetes, hypercholesterolemia, uncontrolled systolic blood pressure and use of more than one anti-hypertension drug. CONCLUSION: The prevalence of self-reported hypertension in the city of São Paulo resembles the prevalence found in other studies

    Hipertensión arterial en la ciudad de São Paulo: prevalencia referida por contacto telefónico

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    FUNDAMENTO: Pouco se conhece sobre a prevalência da hipertensão arterial na cidade de São Paulo, SP, Brasil. OBJETIVO: Identificar a prevalência da hipertensão referida na cidade de São Paulo. MÉTODOS: Realizaram-se 613 entrevistas por telefone, a partir das listas residenciais do sistema de telefonia fixa. A amostra foi calculada com prevalência estimada de hipertensão em 20,0%. RESULTADOS: A prevalência referida de hipertensão foi de 23,0% e 9,0% dos entrevistados referiram que o valor de sua última medida da pressão foi maior que 140/90 mmHg, porém não tinham conhecimento de que eram hipertensos, totalizando uma prevalência de 32,0%. Os hipertensos referiram que: 89,0% fazem tratamento e 35,2% estavam controlados; 27,0% faltam às consultas; 16,2% deixam de tomar os remédios; 14,8% apresentam história de acidente vascular encefálico, 27,8% cardiopatia e 38,7% hipercolesterolemia; 71,2% receberam orientação para diminuir sal, 64,6% para realizar atividade física, 60,0% para perder peso e 26,2% para controlar estresse; e 78,9% mediam a pressão regularmente. Houve relação estatisticamente significante (p < 0,05) para: 1) faltar às consultas com maior tempo de tratamento e acompanhamento irregular de saúde; 2) deixar de tomar os remédios com tabagismo, etilismo e a não realização de acompanhamento de saúde; 3) realizar tratamento para hipertensão com dislipidemia, idade mais elevada e maior tempo de uso de anticoncepcional, no caso das mulheres; e 4) índice de massa corporal alterado com presença de diabete, hipercolesterolemia, pressão sistólica não controlada e uso de mais de um anti-hipertensivo. CONCLUSÃO: A prevalência referida de hipertensão na cidade de São Paulo assemelha-se à prevalência identificada em outros estudos.BACKGROUND: Little is known about the prevalence of hypertension in São Paulo, Brazil. OBJECTIVE: To identify the prevalence of self-reported hypertension in the city of São Paulo. METHODS: There were 613 telephone interviews using directories of household landlines. The sample was calculated with an estimated prevalence of hypertension in 20.0%. RESULTS: The prevalence of self-reported hypertension was 23.0% and 9.0% of respondents reported that the value of their last pressure measurement was greater than 140/90 mmHg, but they were unaware that they were hypertensive, with a total prevalence 32.0%. Hypertensive patients reported that: 89.0% were under treatment and 35.2% were controlled; 27.0% miss medical appointments; 16.2% stop taking drugs; 14.8% have a history of stroke; 27.8% had heart disease and 38.7% had hypercholesterolemia; 71.2% received advice to reduce salt, 64.6% to perform physical activity, 60.0% to lose weight loss and 26.2% to control stress; and 78.9% measured pressure regularly. There was a statistically significant relation (p < 0.05) for: 1) missing medical appointments with longer treatment and irregular health monitoring; 2) stop taking the drugs with smoking, alcohol and failure to monitore health; 3) carry out treatment for hypertension with dyslipidemia, higher age and longer use of contraceptives for women; and 4) body mass index changed with diabetes, hypercholesterolemia, uncontrolled systolic blood pressure and use of more than one anti-hypertension drug. CONCLUSION: The prevalence of self-reported hypertension in the city of São Paulo resembles the prevalence found in other studies.FUNDAMENTO: Poco se conoce sobre la prevalencia de la hipertensión arterial en la ciudad de São Paulo, SP, Brasil. OBJETIVO: Identificar la prevalencia de la hipertensión referida en la ciudad de São Paulo. MÉTODOS: Se realizaron 613 entrevistas por teléfono, a partir de las listas residenciales del sistema de telefonía fija. La muestra fue calculada con prevalencia estimada de hipertensión en 20,0%. RESULTADOS: La prevalencia referida de hipertensión fue de 23,0% y 9,0% de los entrevistados refirieron que el valor de su última medición de la presión fue mayor que 140/90 mmHg, sin embargo no sabían que eran hipertensos, totalizando una prevalencia de 32,0%. Los hipertensos refirieron que: 89,0% hacen tratamiento y 35,2% estaban controlados; 27,0% faltan a las consultas; 16,2% dejan de tomar los remedios; 14,8% presentan historia de accidente cerebro vascular, 27,8% cardiopatía y 38,7% hipercolesterolemia; 71,2% recibieron orientación de disminuir la sal, 64,6% de realizar actividad física, 60,0% para perder peso y 26,2% de controlar el stress; y 78,9% medían la presión regularmente. Hubo relación estadísticamente significativa (p < 0,05) para: 1 - faltar a las consultas con mayor tiempo de tratamiento y acompañamiento irregular de salud; 2 - dejar de tomar los remedios con tabaquismo, etilismo y la no realización de acompañamiento de salud; 3 - realizar tratamiento para hipertensión con dislipidemia, edad más elevada y mayor tiempo de uso de anticonceptivo, en el caso de las mujeres; y 4 - índice de masa corporal alterado con presencia de diabetes, hipercolesterolemia, presión sistólica no controlada y uso de más de un antihipertensivo. CONCLUSIÓN: La prevalencia referida de hipertensión en la ciudad de São Paulo se asemeja a la prevalencia identificada en otros estudios

    Rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART): Study protocol for a randomized controlled trial

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    Background: Acute respiratory distress syndrome (ARDS) is associated with high in-hospital mortality. Alveolar recruitment followed by ventilation at optimal titrated PEEP may reduce ventilator-induced lung injury and improve oxygenation in patients with ARDS, but the effects on mortality and other clinical outcomes remain unknown. This article reports the rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART). Methods/Design: ART is a pragmatic, multicenter, randomized (concealed), controlled trial, which aims to determine if maximum stepwise alveolar recruitment associated with PEEP titration is able to increase 28-day survival in patients with ARDS compared to conventional treatment (ARDSNet strategy). We will enroll adult patients with ARDS of less than 72 h duration. The intervention group will receive an alveolar recruitment maneuver, with stepwise increases of PEEP achieving 45 cmH(2)O and peak pressure of 60 cmH2O, followed by ventilation with optimal PEEP titrated according to the static compliance of the respiratory system. In the control group, mechanical ventilation will follow a conventional protocol (ARDSNet). In both groups, we will use controlled volume mode with low tidal volumes (4 to 6 mL/kg of predicted body weight) and targeting plateau pressure <= 30 cmH2O. The primary outcome is 28-day survival, and the secondary outcomes are: length of ICU stay; length of hospital stay; pneumothorax requiring chest tube during first 7 days; barotrauma during first 7 days; mechanical ventilation-free days from days 1 to 28; ICU, in-hospital, and 6-month survival. ART is an event-guided trial planned to last until 520 events (deaths within 28 days) are observed. These events allow detection of a hazard ratio of 0.75, with 90% power and two-tailed type I error of 5%. All analysis will follow the intention-to-treat principle. Discussion: If the ART strategy with maximum recruitment and PEEP titration improves 28-day survival, this will represent a notable advance to the care of ARDS patients. Conversely, if the ART strategy is similar or inferior to the current evidence-based strategy (ARDSNet), this should also change current practice as many institutions routinely employ recruitment maneuvers and set PEEP levels according to some titration method.13Hospital do Coracao (HCor) as part of the Program 'Hospitais de Excelencia a Servico do SUS (PROADI-SUS)'Brazilian Ministry of Healt
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