B-type natriuretic peptide levels and diagnostic accuracy: excess fluid volume.

AIM: To analyze the behavior of B-type natriuretic peptide (BNP) in the presence of defining characteristics (DCs) of the nursing diagnosis Excess fluid volume (00026) in patients hospitalized for acute decompensated heart failure. METHODS: Cohort study of patients admitted with acute decompensated heart failure (September 2015 to September 2016) defined by Boston Criteria. Patients hospitalized for up to 36 h with BNP values ≥ 100 pg/ml were included; BNP values at baseline-final assessment were compared by Wilcoxon test, the number of DCs at baseline-final assessment was compared by paired t-test. RESULTS: Sixty-four patients were included; there was a significant positive correlation between delta of BNP and the number of DCs present at initial clinical assessment. CONCLUSIONS: The behavior of BNP was correlated to the DCs indicating congestion. With clinical compensation, DCs and BNP decreased. The use of this biomarker may provide additional precision to the nursing assessment.

B-type natriuretic peptide levels and diagnostic accuracy: excess fluid volume / Niveles del péptido natriurético tipo B y precisión diagnóstica: volumen de líquidos excesivo / Níveis do peptídeo natriurético tipo B e acurácia diagnóstica: volume de líquidos excessivo

ABSTRACT Aim: To analyze the behavior of B-type natriuretic peptide (BNP) in the presence of defining characteristics (DCs) of the nursing diagnosis Excess fluid volume (00026) in patients hospitalized for acute decompensated heart failure. Methods: Cohort study of patients admitted with acute decompensated heart failure (September 2015 to September 2016) defined by Boston Criteria. Patients hospitalized for up to 36 h with BNP values ≥ 100 pg/ml were included; BNP values at baseline-final assessment were compared by Wilcoxon test, the number of DCs at baseline-final assessment was compared by paired t-test. Results: Sixty-four patients were included; there was a significant positive correlation between delta of BNP and the number of DCs present at initial clinical assessment. Conclusions: The behavior of BNP was correlated to the DCs indicating congestion. With clinical compensation, DCs and BNP decreased. The use of this biomarker may provide additional precision to the nursing assessment.

RESUMEN Objetivo: Analizar el comportamiento del péptido natriurético tipo B (BNP) en presencia de características definitorias (CD) del diagnóstico de enfermería Exceso de volumen de líquidos (00026) en pacientes hospitalizados por insuficiencia cardíaca aguda descompensada (ICAD). Métodos: Estudio de cohorte de pacientes ingresados ​​con ICAD (septiembre/2015 a septiembre/2016).Se incluyeron pacientes hospitalizados hasta 36 h con valores de BNP ≥ 100 pg / ml; Los valores de BNP en la evaluación inicial basal se compararon mediante la prueba de Wilcoxon, el número de CD en la evaluación inicial basal se comparó mediante el Test-T apareado. Resultados: Se incluyeron 64 pacientes; hubo una correlación positiva significativa entre el delta del BNP y las CD presentes en la evaluación clínica inicial. Conclusiones: El comportamiento del BNP se correlacionó con las CD que indican congestión. Con compensación clínica, las CD y el BNP disminuyeron. El uso del BNP puede proporcionar precisión adicional a la evaluación de enfermería.

RESUMO Objetivo: Analisar o comportamento do peptídeo natriurético tipo B (BNP) na presença de características definidoras (CDs) do diagnóstico de enfermagem Excesso de volume de líquidos (00026) em pacientes hospitalizados por insuficiência cardíaca descompensada. Métodos: Estudo de coorte com pacientes internados com insuficiência cardíaca descompensada (setembro-2015 a setembro-2016), definida pelos Critérios de Boston. Pacientes hospitalizados por mais de 36 horas, valor de BNP ≥ 100 pg/ml foram incluídos; valores de BNP basal-final foram comparados pelo teste Wilcoxon; as CDs no basal-final foram comparadas pelo teste t pareado. Resultados: Sessenta e quatro pacientes foram incluídos; houve correlação positiva significativa entre o delta de BNP com o número de CDs presentes na avaliação clínica inicial. Conclusões: O comportamento do BNP foi correlacionado com as CDs, indicando congestão. Com a compensação clínica, as CDs e a concentração de BNP diminuíram. O uso deste biomarcador pode fornecer precisão adicional à avaliação de enfermagem.

Aggressive fluid and sodium restriction in decompensated heart failure with preserved ejection fraction: Results from a randomized clinical trial.

OBJECTIVES: Sodium and fluid restriction is commonly prescribed for heart failure patients. However, its role in the treatment of heart failure with preserved ejection fraction (HFpEF) remains unclear. The aim of this study was to compare the effect of a diet with sodium and fluid restriction with an unrestricted diet in patients admitted for decompensated HFpEF. METHODS: Patients were randomized to a diet with sodium (0.8 g/d) and fluid (800 mL/d) restriction (intervention group [IG]) or an unrestricted diet (control group [CG]) and followed for 7 d or hospital discharge. The primary outcome was weight loss. Secondary outcomes included clinical stability, perception of thirst, neurohormonal activation, nutrient intake, readmission, and mortality rate after 30 d. RESULTS: Fifty-three patients were included (30, IG; 23, CG). The mean ejection fraction was 62% ± 8% for IG and 60% ± 7% for CG (P = 0.44). Weight loss was similar in both groups, being 1.6 ± 2.2 kg in the IG and 1.8 ± 2.1 kg in CG (P = 0.49) as well as the reduction in the congestion score (IG = 3.4 ± 3.5; CG = 3.8 ± 3.4; P = 0.70). The daily perception of thirst was higher in the IG (P = 0.03). Lower energy consumption was seen in the IG (P <0.001). No significant between-group differences at 30 d were found. CONCLUSIONS: Aggressive sodium and fluid restriction does not provide symptomatic or prognosis benefits, but does produce greater perception of thirst, may impair the patient's food intake, and does not seem to have an important neurohormonal effect in patients admitted for decompensated HFpEF.

Comportamento do marcador sanguíneo peptídeo natriurético tipo B e sua relação com o diagnóstico de enfermagem volume de líquidos excessivo em pacientes internados por insuficiência cardíaca descompensada / Behavior of the B-type natriuretic peptide marker and its relation to the nursing diagnosis Excess fluid volume in patients hospitalized for decompensated heart failure

A congestão sistêmica é o principal fator relacionado à descompensação de pacientes com insuficiência cardíaca (IC), conferindo manifestações clínicas como dispneia, ortopneia, cansaço, distensão da veia jugular e edema. Estes sinais e sintomas, assim denominados características definidoras (CD) na classificação de Diagnósticos de Enfermagem (DE) da NANDA-International, fazem parte do diagnóstico de Volume de líquidos excessivo (VLE) frequentemente estabelecido em pacientes congestos. Estes sinais e sintomas também são frequentemente associados a diagnósticos do sistema respiratório e, por conseguinte, podem comprometer a acurácia diagnóstica. É nessa perspectiva, que se apresenta um marcador bastante estudado nas duas últimas décadas, Peptídeo Natriurético tipo B (BNP), que consegue diferenciar a dispneia de origem cardíaca da dispneia de causa pulmonar. Visando agregar este biomarcador ao conjunto de CD do diagnóstico VLE que este estudo foi desenvolvido. O objetivo do estudo é analisar o comportamento do Peptídeo Natriurético tipo B com a presença das CD do diagnóstico VLE em pacientes com IC descompensada durante a internação. Trata-se de um estudo de coorte conduzido em hospital público universitário, Porto Alegre, RS. Foram incluídos pacientes com diagnóstico de IC, função sistólica reduzida ou preservada, que internaram por descompensação aguda. A coleta foi sistematizada por meio de uma avaliação clínica na admissão e após compensação da IC (até sete dias após a admissão, denominado avaliação final), contendo as CD já validadas clinicamente para este diagnóstico em pacientes com IC como principais e secundárias. Também foram coletadas amostras de sangue para dosagem do BNP nestes dois períodos. (Continua)

(Continuação) Foram incluídos 64 pacientes, com média de idade de 69±13 anos, fração de ejeção do ventrículo esquerdo 50±16%. Da avaliação inicial à final, houve redução significativa das seguintes CD principais: dispneia (97% x 62%), ortopneia (91% x 67%), edema (89% x 62%), refluxo hepatojugular positivo (60% x 32%), dispneia paroxística noturna (95% x 26%), congestão pulmonar (66% x 49%), pressão venosa central elevada (53% x 27%); e secundárias, como ganho de peso (59%x9%), hepatomegalia (14%x11%), crepitação (86%x 50%) e oligúria (3%x1,5%). Em uma análise quantitativa das CD, observa-se uma redução da admissão à avaliação final no estudo, 11,3 ±3 versus 7,5±3, p<0,001; os valores de BNP da admissão no estudo à avaliação final reduziram significativamente 381(202-707) pg/ml versus 309(180- 640) pg/ml, p=0,012. Houve correlação positiva de moderada magnitude e significativa entre o delta do BNP com o número das CD presentes na avaliação clínica inicial do estudo r=0,304 e p=0,018. A área da curva ROC verificada resultou em 0,552, mostrando o nível de sensibilidade de 66,7%, quando o ponto de corte do valor do BNP for 447pg/ml e no teste de especificidade 54%. Os achados deste estudo indicam que o BNP apresentou um comportamento semelhante às CD, diminuindo seus valores de acordo com as manifestações do estado congestivo em pacientes internados por IC descompensada. A inclusão desse marcador como CD pode melhorar a acurácia diagnóstica.

Validity and reliability of a questionnaire on knowledge of cardiovascular risk factors for use in Brazil.

Using a sample of patients with coronary artery disease, this methodological study aimed to conduct a cross-cultural adaptation and validation of a questionnaire on knowledge of cardiovascular risk factors (Q-FARCS), lifestyle changes, and treatment adherence for use in Brazil. The questionnaire has three scales: general knowledge of risk factors (RFs); specific knowledge of these RFs; and lifestyle changes achieved. Cross-cultural adaptation included translation, synthesis, back-translation, expert committee review, and pretesting. Face and content validity, reliability, and construct validity were measured. Cronbach's alpha for the total sample (n = 240) was 0.75. Assessment of psychometric properties revealed adequate face and content validity, and the construct revealed seven components. It was concluded that the Brazilian version of Q-FARCS had adequate reliability and validity for the assessment of knowledge of cardiovascular RFs.

Predictors of better self-care in patients with heart failure after six months of follow-up home visits.

This study aimed to examine the predictors of better self-care behavior in patients with heart failure (HF) in a home visiting program. This is a longitudinal study nested in a randomized controlled trial (ISRCTN01213862) in which the home-based educational intervention consisted of a six-month followup that included four home visits by a nurse, interspersed with four telephone calls. The self-care score was measured at baseline and at six months using the Brazilian version of the European Heart Failure Self-Care Behaviour Scale. The associations included eight variables: age, sex, schooling, having received the intervention, social support, income, comorbidities, and symptom severity. A simple linear regression model was developed using significant variables (P ≤ 0.20), followed by a multivariate model to determine the predictors of better self-care. One hundred eighty-eight patients completed the study. A better self-care behavior was associated with patients who received intervention (P < 0.001), had more years of schooling (P = 0.016), and had more comorbidities (P = 0.008). Having received the intervention (P < 0.001) and having a greater number of comorbidities (P = 0.038) were predictors of better self-care. In the multivariate regression model, being in the intervention group and having more comorbidities were a predictor of better self-care.

Validity and reliability of a questionnaire on knowledge of cardiovascular risk factors for use in Brazil / Validade e fidedignidade de um questionario de conhecimento de fatores de risco cardiovascular para uso no Brasil / Validez y confiabilidad del cuestionario de conocimiento de factores de riesgo cardiovascular para su uso en el Brasil

Using a sample of patients with coronary artery disease, this methodological study aimed to conduct a cross-cultural adaptation and validation of a questionnaire on knowledge of cardiovascular risk factors (Q-FARCS), lifestyle changes, and treatment adherence for use in Brazil. The questionnaire has three scales: general knowledge of risk factors (RFs); specific knowledge of these RFs; and lifestyle changes achieved. Cross-cultural adaptation included translation, synthesis, back-translation, expert committee review, and pretesting. Face and content validity, reliability, and construct validity were measured. Cronbach’s alpha for the total sample (n = 240) was 0.75. Assessment of psychometric properties revealed adequate face and content validity, and the construct revealed seven components. It was concluded that the Brazilian version of Q-FARCS had adequate reliability and validity for the assessment of knowledge of cardiovascular RFs.

O objetivo deste estudo metodológico foi realizar adaptação transcultural e validar para uso no Brasil um questionário de conhecimento dos fatores de risco cardiovascular (Q-FARCS), mudança do estilo de vida e adesão em uma amostra de pacientes com doença arterial coronariana. O questionário é dividido em três escores: conhecimento geral dos fatores de risco; conhecimento específico e mudanças no estilo de vida. A adaptação transcultural incluiu tradução, síntese, retrotradução, análise por comitê de especialistas e pré-teste. Validade de face e conteúdo, fidedignidade e validade de constructo foram mensuradas. Na amostra total (n=240) o Alpha de Cronbach foi de 0,75. Na análise das propriedades psicométricas, a validade de face e de conteúdo mostraram-se adequadas; a de constructo indicou sete componentes. Pode-se concluir que a versão adaptada para o Brasil do Q-FARCS apresentou adequada fidedignidade e validade para avaliar o conhecimento dos fatores de risco cardiovascular.

El objetivo de este estudio metodológico fue realizar la adaptación transcultural y validar para su uso en el Brasil, un cuestionario de conocimiento de los factores de riesgo cardiovascular (Q-FARCS), el cambio del estilo de vida y adhesión al tratamiento en una muestra de pacientes con enfermedad arterial coronaria. El cuestionario está dividido en tres scores: conocimiento general de los factores de riesgo; conocimiento específico y cambios en el estilo de vida. La adaptación transcultural incluyó traducción, síntesis, retro-traducción, análisis por comité de especialistas y pre-test. Validez de apariencia y contenido, confiabilidad y validez de constructo fueron medidas. En la muestra total (n=240) el Alfa de Cronbach fue de 0,75. En el análisis de las propiedades psicométricas, la validez de apariencia y de contenido se mostraron adecuadas; la validez de constructo indicó siete componentes. Se concluye que la versión adaptada para el Brasil del Q-FARCS presentó adecuada confiabilidad y validez para evaluar el conocimiento de los factores de riesgo cardiovascular.

Home visit improves knowledge, self-care and adhesion in heart failure: Randomized Clinical Trial HELEN-I.

OBJECTIVE: To verify the effect of an educative nursing intervention composed of home visits and phone calls on patients' knowledge about the disease, self-care and adhesion to the treatment. METHODS: Randomized clinical trial with patients with recent hospitalization caused by decompensated heart failure. There were two groups: the intervention group, which has received four home visits and four phone calls to reinforce the guidelines during six months of follow up; and the control group, which has received conventional follow up with no visits or phone calls. RESULTS: Two hundred patients were randomized (101 in the intervention group and 99 in the control group). After six months, a significant improvement was observed in self-care and knowledge about the disease in the intervention group (P=0.001 and P<0.001), respectively; the adhesion to the treatment, measured and compared between the groups, was significantly higher in the intervention group (P=0.001). CONCLUSION: the strategy of home visits to patients who were recently hospitalized with decompensated heart failure was effective in improving the outcomes assessed and its implementation deserves to be considered in Brazil aiming at avoiding unplanned hospitalizations. NCT-01213862.

Home visit improves knowledge, self-care and adhesion in heart failure: randomized Clinical Trial HELEN-I / Visita domiciliar melhora conhecimento, autocuidado e adesão na insuficiência cardíaca: ensaio clínico randomizado HELEN-I / Visita domiciliar mejora conocimiento, auto cuidado, adhesión en la insuficiencia cardíaca: Ensayo Clínico Aleatorizado HELEN - I

OBJECTIVE: To verify the effect of an educative nursing intervention composed of home visits and phone calls on patients' knowledge about the disease, self-care and adhesion to the treatment. METHODS: Randomized clinical trial with patients with recent hospitalization caused by decompensated heart failure. There were two groups: the intervention group, which has received four home visits and four phone calls to reinforce the guidelines during six months of follow up; and the control group, which has received conventional follow up with no visits or phone calls. RESULTS: Two hundred patients were randomized (101 in the intervention group and 99 in the control group). After six months, a significant improvement was observed in self-care and knowledge about the disease in the intervention group (P=0.001 and P<0.001), respectively; the adhesion to the treatment, measured and compared between the groups, was significantly higher in the intervention group (P=0.001). CONCLUSION: the strategy of home visits to patients who were recently hospitalized with decompensated heart failure was effective in improving the outcomes assessed and its implementation deserves to be considered in Brazil aiming at avoiding unplanned hospitalizations. NCT-01213862.

OBJETIVO: verificar o efeito de uma intervenção educativa de enfermagem combinada, caracterizada por visita domiciliar e contato telefônico, em pacientes com internação recente por insuficiência cardíaca descompensada, no conhecimento da doença, nas habilidades para o autocuidado e na adesão ao tratamento, comparado ao acompanhamento convencional de pacientes no período de seis meses. MÉTODOS: nsaio línico randomizado com pacientes que tiveram internação recente por insuficiência cardíaca descompensada. O grupo-intervenção recebeu quatro visitas domiciliares e quatro contatos telefônicos para reforço das orientações, em seis meses de acompanhamento; o grupo-controle recebeu acompanhamento convencional sem visitas e sem contatos telefônicos. RESULTADOS: duzentos pacientes foram randomizados (101: intervenção e 99: controle). Após seis meses, observou-se melhora significativa no conhecimento e autocuidado para o grupo-intervenção (p=0,001 e p<0,001), respectivamente; a adesão ao tratamento, aferida no final entre os grupos, foi significativamente maior no grupo-intervenção (p<0,001). CONCLUSÃO: a estratégia de visita domiciliar para pacientes que se internaram recentemente por insuficiência cardíaca descompensada foi efetiva na melhora dos desfechos avaliados, e sua implementação merece ser considerada no Brasil, visando-se evitar internações não planejadas. NCT-01213862.

OBJETIVO: Verificar el efecto de una intervención educativa de enfermería combinada de visita domiciliaria y contacto telefónico en pacientes con internación reciente por insuficiencia cardiaca descompensada, en el conocimiento de la enfermedad, las habilidades para el autocuidado y la adhesión al tratamiento comparado con el acompañamiento convencional de pacientes en el período de seis meses. MÉTODOS: Ensayo Clínico Aleatorizado en pacientes que fueron ingresados recientemente por insuficiencia cardiaca descompensada. El grupo intervención recibió cuatro visitas domiciliarias y cuatro contactos telefónicos para reforzar las orientaciones en seis meses de acompañamiento; el grupo control recibió acompañamiento convencional sin visitas y sin contactos telefónicos. RESULTADOS: Fueron aleatorizados doscientos pacientes (101: intervención y 99: control). Tras seis meses, se observó una mejoría significativa en el conocimiento y el autocuidado para el grupo intervención (P=0,001 y P<0,001), respectivamente; la adhesión al tratamiento, comparada al final entre los grupos, fue significativamente mayor en el grupo intervención (P<0,001). CONCLUSIÓN: La estrategia de visita domiciliaria para pacientes internados recientemente por insuficiencia cardiaca descompensada fue efectiva en la mejora de los desenlaces evaluados y su implementación merece ser considerada en Brasil con objeto de evitar internaciones no planificadas. NCT-01213862.