Diferencias en función del sexo en las características clínicas y resultados del ensayo clínico CLOROTIC (combinación de diuréticos de asa con tiazidas en la insuficiencia cardiaca descompensada) / Sex differences in clinical characteristics and outcomes in the CLOROTIC (combining loop with thiazide diuretics for decompensated heart failure) trial

ObjetivoEvaluar si existen diferencias en los resultados del ensayo clínico CLOROTIC según el sexo. Métodos Subanálisis del ensayo CLOROTIC, que evaluó la eficacia y la seguridad de añadir hidroclorotiazida (HCTZ) o placebo a furosemida intravenosa en pacientes con insuficiencia cardiaca aguda (ICA). Los resultados primarios y secundarios incluyeron cambios en el peso y la disnea a las 72 y 96horas, medidas de la respuesta diurética y la mortalidad y reingresos a los 30 y 90días. Se evaluó la influencia del sexo en los resultados primarios y secundarios y de seguridad. Resultados De los 230 pacientes incluidos, 111 (48%) eran mujeres, que tenían más edad y valores más elevados de fracción de eyección ventricular izquierda. Los hombres tenían más cardiopatía isquémica, enfermedad pulmonar obstructiva crónica y mayor valor de péptidos natriuréticos. La adición de HCTZ a furosemida se asoció con una mayor pérdida de peso a las 72/96horas y mejor respuesta diurética a las 24horas en comparación con el placebo, sin diferencias significativas según el sexo (ningún valor de p para la interacción fue significativo). El deterioro de la función renal fue más frecuente en mujeres (OR: 8,68; IC95%: 3,41-24,63) que en varones (OR: 2,5; IC95%: 0,99-4,87), p=0,027. No hubo diferencias en la mortalidad ni en los reingresos a los 30/90días. Conclusión La adición de HCTZ a furosemida intravenosa es una estrategia eficaz para mejorar la respuesta diurética en la ICA sin diferencias según el sexo. Sin embargo, el deterioro de la función renal es más frecuente en las mujeres. (AU)

Aims The addition of hydrochlorothiazide (HCTZ) to furosemide improved the diuretic response in patients with acute heart failure (AHF) in the CLOROTIC trial. Our aim was to evaluate if there were differences in clinical characteristics and outcomes according to sex. Methods This is a post hoc analysis of the CLOROTIC trial, including 230 patients with AHF randomized to receive HCTZ or placebo in addition to an intravenous furosemide regimen. The primary and secondary outcomes included changes in weight and patient-reported dyspnoea 72 and 96h after randomization, metrics of diuretic response and mortality/rehospitalizations at 30 and 90days. The influence of sex on primary, secondary and safety outcomes was evaluated. Results One hundred and eleven (48%) women were included in the study. Women were older and had higher values of left ventricular ejection fraction. Men had more ischemic cardiomyopathy and chronic obstructive pulmonary disease and higher values of natriuretic peptides. The addition of HCTZ to furosemide was associated to a greatest weight loss at 72/96h, better metrics of diuretic response and higher 24-h diuresis compared to placebo without significant differences according to sex (all P-values for interaction were not significant). Worsening renal function occurred more frequently in women (OR: 8.68; 95%CI: 3.41-24.63) than men (OR: 2.5; 95%CI: 0.99-4.87), P=.027. There were no differences in mortality or rehospitalizations at 30/90days. Conclusion Adding HCTZ to intravenous furosemide is an effective strategy to improve diuretic response in AHF with no difference according to sex, but worsening renal function was more frequent in women. (AU)

Diferencias en función del sexo en las características clínicas y resultados del ensayo clínico CLOROTIC (combinación de diuréticos de asa con tiazidas en la insuficiencia cardiaca descompensada) / Sex differences in clinical characteristics and outcomes in the CLOROTIC (combining loop with thiazide diuretics for decompensated heart failure) trial

ObjetivoEvaluar si existen diferencias en los resultados del ensayo clínico CLOROTIC según el sexo. Métodos Subanálisis del ensayo CLOROTIC, que evaluó la eficacia y la seguridad de añadir hidroclorotiazida (HCTZ) o placebo a furosemida intravenosa en pacientes con insuficiencia cardiaca aguda (ICA). Los resultados primarios y secundarios incluyeron cambios en el peso y la disnea a las 72 y 96horas, medidas de la respuesta diurética y la mortalidad y reingresos a los 30 y 90días. Se evaluó la influencia del sexo en los resultados primarios y secundarios y de seguridad. Resultados De los 230 pacientes incluidos, 111 (48%) eran mujeres, que tenían más edad y valores más elevados de fracción de eyección ventricular izquierda. Los hombres tenían más cardiopatía isquémica, enfermedad pulmonar obstructiva crónica y mayor valor de péptidos natriuréticos. La adición de HCTZ a furosemida se asoció con una mayor pérdida de peso a las 72/96horas y mejor respuesta diurética a las 24horas en comparación con el placebo, sin diferencias significativas según el sexo (ningún valor de p para la interacción fue significativo). El deterioro de la función renal fue más frecuente en mujeres (OR: 8,68; IC95%: 3,41-24,63) que en varones (OR: 2,5; IC95%: 0,99-4,87), p=0,027. No hubo diferencias en la mortalidad ni en los reingresos a los 30/90días. Conclusión La adición de HCTZ a furosemida intravenosa es una estrategia eficaz para mejorar la respuesta diurética en la ICA sin diferencias según el sexo. Sin embargo, el deterioro de la función renal es más frecuente en las mujeres. (AU)

Aims The addition of hydrochlorothiazide (HCTZ) to furosemide improved the diuretic response in patients with acute heart failure (AHF) in the CLOROTIC trial. Our aim was to evaluate if there were differences in clinical characteristics and outcomes according to sex. Methods This is a post hoc analysis of the CLOROTIC trial, including 230 patients with AHF randomized to receive HCTZ or placebo in addition to an intravenous furosemide regimen. The primary and secondary outcomes included changes in weight and patient-reported dyspnoea 72 and 96h after randomization, metrics of diuretic response and mortality/rehospitalizations at 30 and 90days. The influence of sex on primary, secondary and safety outcomes was evaluated. Results One hundred and eleven (48%) women were included in the study. Women were older and had higher values of left ventricular ejection fraction. Men had more ischemic cardiomyopathy and chronic obstructive pulmonary disease and higher values of natriuretic peptides. The addition of HCTZ to furosemide was associated to a greatest weight loss at 72/96h, better metrics of diuretic response and higher 24-h diuresis compared to placebo without significant differences according to sex (all P-values for interaction were not significant). Worsening renal function occurred more frequently in women (OR: 8.68; 95%CI: 3.41-24.63) than men (OR: 2.5; 95%CI: 0.99-4.87), P=.027. There were no differences in mortality or rehospitalizations at 30/90days. Conclusion Adding HCTZ to intravenous furosemide is an effective strategy to improve diuretic response in AHF with no difference according to sex, but worsening renal function was more frequent in women. (AU)

Design and baseline characteristics of SALT-HF trial: hypertonic saline therapy in ambulatory heart failure.

AIMS: Hypertonic saline solution (HSS) plus intravenous (IV) loop diuretic appears to enhance the diuretic response in patients hospitalized for heart failure (HF). The efficacy and safety of this therapy in the ambulatory setting have not been evaluated. We aimed to describe the design and baseline characteristics of the SALT-HF trial participants. METHODS AND RESULTS: 'Efficacy of Saline Hypertonic Therapy in Ambulatory Patients with HF' (SALT-HF) trial was a multicenter, double-blinded, and randomized study involving ambulatory patients who experienced worsening heart failure (WHF) without criteria for hospitalization. Enrolled patients had to present at least two signs of volume overload, use ≥ 80 mg of oral furosemide daily, and have elevated natriuretic peptides. Patients were randomized 1:1 to treatment with a 1-h infusion of IV furosemide plus HSS (2.6-3.4% NaCl depending on plasmatic sodium levels) versus a 1-h infusion of IV furosemide at the same dose (125-250 mg, depending on basal loop diuretic dose). Clinical, laboratory, and imaging parameters were collected at baseline and after 7 days, and a telephone visit was planned after 30 days. The primary endpoint was 3-h diuresis after treatment started. Secondary endpoints included (a) 7-day changes in congestion data, (b) 7-day changes in kidney function and electrolytes, (c) 30-day clinical events (need of IV diuretic, HF hospitalization, cardiovascular mortality, all-cause mortality or HF-hospitalization). RESULTS: A total of 167 participants [median age, 81 years; interquartile range (IQR), 73-87, 30.5% females] were randomized across 13 sites between December 2020 and March 2023. Half of the participants (n = 82) had an ejection fraction >50%. Most patients showed a high burden of comorbidities, with a median Charlson index of 3 (IQR: 2-4). Common co-morbidities included diabetes mellitus (41%, n = 69), atrial fibrillation (80%, n = 134), and chronic kidney disease (64%, n = 107). Patients exhibited a poor functional NYHA class (69% presenting NYHA III) and several signs of congestion. The mean composite congestion score was 4.3 (standard deviation: 1.7). Ninety per cent of the patients (n = 151) presented oedema and jugular engorgement, and 71% (n = 118) showed lung B lines assessed by ultrasound. Median inferior vena cava diameter was 23 mm, (IQR: 21-25), and plasmatic levels of N-terminal-pro-B-type natriuretic peptide (NTproBNP) and antigen carbohydrate 125 (CA125) were increased (median NT-proBNP 4969 pg/mL, IQR: 2508-9328; median CA125 46 U/L, IQR: 20-114). CONCLUSIONS: SALT-HF trial randomized 167 ambulatory patients with WHF and will determine whether an infusion of hypertonic saline therapy plus furosemide increases diuresis and improves decongestion compared to equivalent furosemide administration alone.

Sex differences in clinical characteristics and outcomes in the CLOROTIC (combining loop with thiazide diuretics for decompensated heart failure) trial.

AIMS: The addition of hydrochlorothiazide (HCTZ) to furosemide improved the diuretic response in patients with acute heart failure (AHF) in the CLOROTIC trial. Our aim was to evaluate if there were differences in clinical characteristics and outcomes according to sex. METHODS: This is a post-hoc analysis of the CLOROTIC trial, including 230 patients with AHF randomized to receive HCTZ or placebo in addition to an intravenous furosemide regimen. The primary and secondary outcomes included changes in weight and patient-reported dyspnoea 72 and 96 h after randomization, metrics of diuretic response and mortality/rehospitalizations at 30 and 90 days. The influence of sex on primary, secondary and safety outcomes was evaluated. RESULTS: One hundred and eleven (48%) women were included in the study. Women were older and had higher values of left ventricular ejection fraction. Men had more ischemic cardiomyopathy and chronic obstructive pulmonary disease and higher values of natriuretic peptides. The addition of HCTZ to furosemide was associated to a greatest weight loss at 72/96 h, better metrics of diuretic response and higher 24-h diuresis compared to placebo without significant differences according to sex (all p-values for interaction were not significant). Worsening renal function occurred more frequently in women (OR [95%CI]: 8.68 [3.41-24.63]) than men (OR [95%CI]: 2.5 [0.99-4.87]), p = 0.027. There were no differences in mortality or rehospitalizations at 30/90 days. CONCLUSION: Adding HCTZ to intravenous furosemide is an effective strategy to improve diuretic response in AHF with no difference according to sex, but worsening renal function was more frequent in women. CLINICAL TRIAL REGISTRATION: Clinicaltrials.gov: NCT01647932; EudraCT Number: 2013-001852-36.

Resumen ejecutivo de la actualización 2023 del consenso de actuación básica durante el ingreso hospitalario por insuficiencia cardiaca aguda / Executive summary of the 2023 update on the consensus regarding basic conduct during hospital admission for patients with acute heart failure

La insuficiencia cardiaca aguda (ICA) está asociada a una importante morbimortalidad, constituyendo la primera causa de hospitalización en mayores de 65 años en nuestro país. Las principales recomendaciones recogidas son: 1) al ingreso, se recomienda realizar una evaluación integral, considerando el tratamiento habitual y comorbilidades, ya que condicionan el pronóstico; 2) en las primeras horas de atención hospitalaria, el tratamiento descongestivo es prioritario, y se recomienda un abordaje terapéutico diurético precoz y escalonado en función de la respuesta; 3) durante la fase estable, se recomienda considerar el inicio y/o titulación del tratamiento con fármacos basados en la evidencia, es decir, sacubitrilo/valsartán o inhibidores de la enzima convertidora de angiotensina/antagonistas de los receptores de angiotensina II, betabloqueantes, antialdosterónicos e inhibidores SGLT2, y 4) en el momento del alta hospitalaria, es recomendable utilizar un listado —tipo check-list— para optimizar el manejo del paciente hospitalizado e identificar las opciones más eficientes para mantener la continuidad de cuidados tras el alta (AU)

Acute heart failure (AHF) is associated with significant morbidity and mortality and it stands as the primary cause of hospitalization for individuals over the age of 65 in Spain. This document outlines the main recommendations as follows: (1) upon admission, it is crucial to conduct a comprehensive assessment, taking into account the patient's standard treatment and comorbidities, as these factors determine the prognosis of the disease; (2) During the initial hours of hospital care, prioritizing decongestive treatment is essential. It is recommended to adopt an early staged diuretic therapeutic approach based on the patient's response; (3) In order to manage patients in the stable phase, it is advisable to consider initiating and/or adjusting evidence-based drug treatments such as sacubitril/valsartan or angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers, beta blockers, aldosterone antagonists, and SGLT2 inhibitors; (4) Upon hospital discharge, utilizing a checklist is recommended to optimize the patient's management and identify the most efficient options for ensuring continuity of care post-discharge (AU)

Executive summary of the 2023 update on the consensus regarding basic conduct during hospital admission for patients with acute heart failure.

Acute heart failure (AHF) is associated with significant morbidity and mortality and it stands as the primary cause of hospitalization for individuals over the age of 65 in Spain. This document outlines the main recommendations as follows: (1) Upon admission, it is crucial to conduct a comprehensive assessment, taking into account the patient's standard treatment and comorbidities, as these factors determine the prognosis of the disease. (2) During the initial hours of hospital care, prioritizing decongestive treatment is essential. It is recommended to adopt an early staged diuretic therapeutic approach based on the patient's response. (3) In order to manage patients in the stable phase, it is advisable to consider initiating and/or adjusting evidence-based drug treatments such as sacubitril/valsartan or angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers, beta blockers, aldosterone antagonists, and SGLT2 inhibitors. (4) Upon hospital discharge, utilizing a checklist is recommended to optimize the patient's management and identify the most efficient options for ensuring continuity of care post-discharge.

Saving time in the radiotherapy procedures for COVID-19 pneumonia treatment. A single-institution experience

Background The use of low dose radiotherapy (LD-RT) for the treatment of COVID-19 pneumonia is supported by biological rationale for its immunomodulatory effect. Some institutions have started to treat these patients showing encouraging results. To shorten procedure times is crucial for the comfort of symptomatic patients receiving respiratory support and to optimize institutional facilities. Patients and methods At our institution, LD-RT is offered to hospitalized patients with COVID-19 pneumonia and signs of early cytokine-released syndrome on behalf of a multicenter study. We designed a coordinated process flow starting from the patient transfer to the simulation CT-scan (first-step), to the end of the LD-RT treatment (last step). The times spent on each step of the process flow were evaluated. Results Mean age of treated patients was 83 (72–91) years-old. The timing parameters of the first 10 consecutive patients were analyzed. Except for the first (dummy run), patients were managed from the first to the last step in a median of 38 min (25–58, SD 10.67). The most time-consuming sub-process was the contouring of the treatment volumes and dosimetry. Conclusions LD-RT is not only an encouraging option for COVID-19 pneumonia patients, but a convenient and feasible procedure if performed in a coordinated way by reducing procedure times (AU)

Consensus on basic conduct during the hospital admission of patients with acute heart failure.

Acute heart failure (AHF) is a highly prevalent clinical entity in individuals older than 45 years in Spain. AHF is associated with significant morbidity and mortality and is the leading cause of hospitalisation for individuals older than 65 years in Spain, a quarter of whom die within 1 year of the hospitalisation. In recent years, there has been an upwards trend in hospitalisations for AHF, which increased 76.7% from 2003 to 2013. Readmissions at 30 days for AHF have also increased (from 17.6% to 22.1%), at a relative mean rate of 1.36% per year, with the consequent increase in the use of resources and the economic burden for the healthcare system. The aim of this document (developed by the Heart Failure and Atrial Fibrillation Group of the Spanish Society of Internal Medicine) is to guide specialists on the most important aspects of treatment and follow-up for patients with AHF during hospitalisation and the subsequent follow-up. The main recommendations listed in this document are as follows: 1) At admission, perform a comprehensive assessment, considering the patient's standard treatment and comorbidities, given that these determine the disease prognosis to a considerable measure. 2) During the first few hours of hospital care, decongestive treatment is a priority, and a staged diuretic therapeutic approach based on the patient's response is recommended. 3) To manage patients in the stable phase, consider starting and/or adjusting evidence-based drug treatment (e.g., sacubitril/valsartan or angiotensin-converting enzyme inhibitors/angiotensin II receptor blockers, beta blockers and aldosterone antagonists). 4) At hospital discharge, use a checklist to optimise the patient's management and identify the most efficient options for maintaining continuity of care after discharge.

Saving time in the radiotherapy procedures for COVID-19 pneumonia treatment. A single-institution experience.

BACKGROUND: The use of low dose radiotherapy (LD-RT) for the treatment of COVID-19 pneumonia is supported by biological rationale for its immunomodulatory effect. Some institutions have started to treat these patients showing encouraging results. To shorten procedure times is crucial for the comfort of symptomatic patients receiving respiratory support and to optimize institutional facilities. PATIENTS AND METHODS: At our institution, LD-RT is offered to hospitalized patients with COVID-19 pneumonia and signs of early cytokine-released syndrome on behalf of a multicenter study. We designed a coordinated process flow starting from the patient transfer to the simulation CT-scan (first-step), to the end of the LD-RT treatment (last step). The times spent on each step of the process flow were evaluated. RESULTS: Mean age of treated patients was 83 (72-91) years-old. The timing parameters of the first 10 consecutive patients were analyzed. Except for the first (dummy run), patients were managed from the first to the last step in a median of 38 min (25-58, SD 10.67). The most time-consuming sub-process was the contouring of the treatment volumes and dosimetry. CONCLUSIONS: LD-RT is not only an encouraging option for COVID-19 pneumonia patients, but a convenient and feasible procedure if performed in a coordinated way by reducing procedure times.

Consenso de actuación básica durante el ingreso hospitalario por insuficiencia cardiaca aguda / Consensus on basic conduct during the hospital admission of patients with acute heart failure

La insuficiencia cardiaca aguda (ICA) es una entidad clínica con una elevada prevalencia en la población de más de 45años en España. Está asociada a una importante morbimortalidad, constituyendo la primera causa de hospitalización en mayores de 65años en nuestro país, de los cuales una cuarta parte fallecen al año del ingreso. En los últimos años se ha observado una tendencia al alza en las hospitalizaciones por ICA, que aumentaron un 76,7% en el período de 2003 a 2013. Los reingresos a los 30días por ICA también aumentaron (del 17,6 al 22,1%) a un ritmo medio relativo del 1,36% por año, con el consiguiente incremento en el uso de recursos y en la carga económica para el sistema sanitario. Este documento, elaborado por el grupo de Insuficiencia Cardiaca y Fibrilación Auricular de la Sociedad Española de Medicina Interna, tiene como objetivo orientar al especialista en los aspectos más importantes del tratamiento y seguimiento de los pacientes con ICA durante el ingreso y el seguimiento posterior. Las principales recomendaciones recogidas son: 1)en el momento del ingreso, realizar una evaluación integral, considerando el tratamiento habitual y comorbilidades del paciente, ya que condicionan en gran medida el pronóstico de la enfermedad; 2)en las primeras horas de atención hospitalaria, el tratamiento descongestivo es prioritario y se recomienda un abordaje terapéutico diurético escalonado en función de la respuesta; 3)en el manejo de la fase estable, considerar el inicio y/o ajustar el tratamiento con fármacos basados en la evidencia, es decir, sacubitrilo/valsartán o IECA/ARAII, betabloqueantes y antialdosterónicos; 4)en el momento del alta hospitalaria, utilizar un checklist para optimizar el manejo del paciente hospitalizado e identificar las opciones más eficientes para mantener la continuidad de cuidados tras el alta (AU)

Acute heart failure (AHF) is a highly prevalent clinical entity in individuals older than 45years in Spain. AHF is associated with significant morbidity and mortality and is the leading cause of hospitalisation for individuals older than 65years in Spain, a quarter of whom die within 1year of the hospitalisation. In recent years, there has been an upwards trend in hospitalisations for AHF, which increased 76.7% from 2003 to 2013. Readmissions at 30days for AHF have also increased (from 17.6% to 22.1%), at a relative mean rate of 1.36% per year, with the consequent increase in the use of resources and the economic burden for the healthcare system. The aim of this document (developed by the Heart Failure and Atrial Fibrillation Group of the Spanish Society of Internal Medicine) is to guide specialists on the most important aspects of treatment and follow-up for patients with AHF during hospitalisation and the subsequent follow-up. The main recommendations listed in this document are as follows: (1)At admission, perform a comprehensive assessment, considering the patient's standard treatment and comorbidities, given that these determine the disease prognosis to a considerable measure. (2)During the first few hours of hospital care, decongestive treatment is a priority, and a staged diuretic therapeutic approach based on the patient's response is recommended. (3)To manage patients in the stable phase, consider starting and/or adjusting evidence-based drug treatment (e.g., sacubitril/valsartan or angiotensin-converting enzyme inhibitors/angiotensinII receptor blockers, beta blockers and aldosterone antagonists). (4)At hospital discharge, use a checklist to optimise the patient's management and identify the most efficient options for maintaining continuity of care after discharge (AU)

Consensus on basic conduct during the hospital admission of patients with acute heart failure. / Consenso de actuación básica durante el ingreso hospitalario por insuficiencia cardiaca aguda.

Acute heart failure (AHF) is a highly prevalent clinical entity in individuals older than 45years in Spain. AHF is associated with significant morbidity and mortality and is the leading cause of hospitalisation for individuals older than 65years in Spain, a quarter of whom die within 1year of the hospitalisation. In recent years, there has been an upwards trend in hospitalisations for AHF, which increased 76.7% from 2003 to 2013. Readmissions at 30days for AHF have also increased (from 17.6% to 22.1%), at a relative mean rate of 1.36% per year, with the consequent increase in the use of resources and the economic burden for the healthcare system. The aim of this document (developed by the Heart Failure and Atrial Fibrillation Group of the Spanish Society of Internal Medicine) is to guide specialists on the most important aspects of treatment and follow-up for patients with AHF during hospitalisation and the subsequent follow-up. The main recommendations listed in this document are as follows: (1)At admission, perform a comprehensive assessment, considering the patient's standard treatment and comorbidities, given that these determine the disease prognosis to a considerable measure. (2)During the first few hours of hospital care, decongestive treatment is a priority, and a staged diuretic therapeutic approach based on the patient's response is recommended. (3)To manage patients in the stable phase, consider starting and/or adjusting evidence-based drug treatment (e.g., sacubitril/valsartan or angiotensin-converting enzyme inhibitors/angiotensinII receptor blockers, beta blockers and aldosterone antagonists). (4)At hospital discharge, use a checklist to optimise the patient's management and identify the most efficient options for maintaining continuity of care after discharge.

Residual congestion and clinical intuition in decompensated heart failure. / La congestión residual y la intuición clínica en la insuficiencia cardiaca descompensada.

Congestive symptoms are the key to recognising decompensated heart failure, whose treatment is based on reducing the congestion until a clinical situation has been reached that allows the patient to be discharged to continue outpatient treatment. The important aspect is not the degree of congestion at admission but rather the congestion that persists after energetic diuretic therapy. The persistence of congestive signs following an apparently correct and effective therapy has been called residual congestion and is associated with a poor prognosis. The tools for determining this condition are still rudimentary. Methods therefore need to be developed that enable a more accurate assessment.

Organ protection possibilities in acute heart failure.

Unlike chronic heart failure (HF), the treatment for acute HF has not changed over the last decade. The drugs employed have shown their ability to control symptoms but have not achieved organ protection or managed to reduce medium to long-term morbidity and mortality. Advances in our understanding of the pathophysiology of acute HF suggest that treatment should be directed not only towards correcting the haemodynamic disorders and achieving symptomatic relief but also towards preventing organ damage, thereby counteracting myocardial remodelling and cardiac and extracardiac disorders. Compounds that exert vasodilatory and anti-inflammatory action in the acute phase of HF and can stop cell death, thereby boosting repair mechanisms, could have an essential role in organ protection.

Difficulties in the diagnosis of heart failure in patients with comorbidities.

Heart failure (HF) patients present frequently comorbidities and the diagnosis of HF in this setting is a challenge. The symptoms and signs of HF may be atypical and can be simulated or disguised by co-morbidities such as respiratory disease and/or obesity. For this reasons, confirmation of the diagnosis always requires further tests. Natriuretic peptides accurately exclude cardiac dysfunction as a cause of symptoms, but the optimal cut-off levels for ruling out and ruling in HF diagnosis are influenced by different co-morbidities. Echocardiography should be performed in all patients to confirm the diagnosis of HF, except in those cases with low clinical probability and a concentration of brain natriuretic peptides below the exclusion cut-off. This review aims to provide a practical clinical approach for the diagnosis of HF in patients with comorbidity, focusing in older patients and patients with chronic obstructive pulmonary disease and/or obesity.

Lack of clinical usefulness of interleukin-6 in long-term follow-up of acutely decompensated heart failure.

INTRODUCTION: Interleukin-6 (IL-6) has been identified as a predictor of death, new heart failure (HF) episodes and need for heart transplantation in patients with advanced HF. The aim of this study was to examine the relationship between plasma IL-6 levels in patients with decompensated HF and either survival or new admissions due to HF. METHODS: We studied 111 patients admitted due to decompensated HF. Long-term survival was assessed from the day of admission to the hospital to the day of death or new admissions due to HF. RESULTS: The mean IL-6 concentration was 90 +/- 115 pg/ml (range 1.5-743 pg/ml). There were no differences in IL-6 concentration with regard to age, gender and cause of HF. At the end of follow-up period, 22 patients (20 percent) had died due to causes related to HF and 54 patients (48 percent) had been readmitted to the hospital due to new HF episodes. Using regression analyses, serum IL-6 levels were not identified as a prognostic factor. Systolic dysfunction, previous diagnosis of HF and diabetes mellitus were independent predictors of death. CONCLUSION: These findings suggest that a single measurement of serum IL-6 in patients with decompensated HF lacks clinical usefulness in long-term follow-up.

Positron emission tomography: useful in detecting metastatic cancer of unknown primary site.

Metastatic cancer of unknown primary site represents approximately three percent of all new cancer diagnoses. Expensive and invasive diagnostic procedures are often performed although the primary tumour is detected in less than 25 percent of cases. We present a 63-year-old woman presenting with low back pain and was found on positron emission tomography (PET) to have lung cancer. The pros and cons of PET in the diagnostic process of patients with metastatic cancer of unknown primary site are reviewed. PET should be considered in the diagnostic process of patients with unknown primaries, and unnecessary invasive procedures may be avoided.

[Influence of age in mortality of patients with heart failure]. / Influencia de la edad en la mortalidad de pacientes con insuficiencia cardiaca.

OBJECTIVE: Heart failure (HF) is one of the most frequent diagnosis in Internal Medicine Units. High age of patients is an important characteristic in these admissions. Our objective was to evaluate how age interact with mortality, to medium-term, in HF after a decompensated episode. METHOD: Through the patient medical record we obtained data about patients hospitalised in a Internal Medicine Unit, with HF diagnosis, for a year (from September 2000 to August 2001) and their survival at 1st January 2003. 215 patients were reviewed. RESULTS: During follow-up, 60 patients died (27.9% of overall). In elderly patients, we observed a higher number of women and less use of echocardiography and treatment with beta-blockers and warfarin (in patients with atrial fibrillation). In Cox proportional-hazards model, age (OR 1.043 IC 95% 1.002-1.085), days of hospitalization (OR 1.04 IC 95% 1.003-1.078), diabetes mellitus (OR 2.51 IC 95% 1.37-4.60) and do not prescribe warfarin in patients with atrial fibrillation (OR 2.71 IC 95% 1.10-6.60) were independent prognostic factors. CONCLUSIONS: Age was an important prognostic factor in patients with HF. Clinical trials should be done in patients with these characteristics. So, we can know better clinical evolution of HF in this population.

[Stroke as the first manifestation of a concealed pancreatic neoplasia]. / Ictus como primera manifestación de una neoplasia pancreática oculta.

INTRODUCTION: Stroke is very seldom seen as the first manifestation of a neoplasia. The mechanisms that are most frequently involved in its pathogenesis are Trousseau's syndrome, haematological disorders such as disseminated intravascular coagulation or thrombocytosis, and the release of mucin by the tumour. Secondarily, non bacterial thrombotic endocarditis, septic or neoplastic cell embolism, venous sinus thrombosis and atherosclerosis secondary to radiotherapy have been reported. CASE REPORTS: Case 1: a 27-year-old male who presented a stroke in the right thalamus with a torpid progression and digestive complications; neuroimaging studies revealed unknown neoplasia of the head of the pancreas. Case 2: a 53-year-old male with repeated stroke (left sylvian and right occipitotemporal) and progressive neurological deterioration secondary to disseminated neoplastic disease, which had its origins in the body and tail of the pancreas. In both cases all the diagnostic explorations carried out in an attempt to determine the aetiopathogenesis of the stroke were negative. The post mortem study in the second patient revealed the existence of a non bacterial thrombotic endocarditis, which was taken as being one of the mechanisms involved. CONCLUSIONS: The pathogenic mechanisms of cerebral ischemia associated to neoplasia are discussed and the primary and secondary forms are differentiated. We highlight the idea that when dealing with a stroke with an unknown aetiology and a torpid progression, the neurologist must consider the existence of a concealed neoplasia with stroke as its first manifestation.