Kinesiophobia and associated variables in patients with heart failure

AIMS

Patients with heart failure (HF) can exhibit kinesiophobia, an excessive, debilitating, and irrational fear of movement. This study aimed to enhance the understanding of kinesiophobia in patients with HF by analysing associations with the following variables: musculoskeletal pain, quality of life, quality of sleep, functional capacity, disability, frailty, sex, and age.

METHODS AND RESULTS

In this cross-sectional study, 107 participants were included, with ages ranging from 28 to 97 years (57% men, mean age 73.18 ± 12.68 years). Multiple regression analyses were performed with all variables, including polynomial regressions for variables with a non-linear relationship. Kinesiophobia was significantly correlated (P < 0.01) with musculoskeletal pain, quality of life, quality of sleep, functional capacity, disability, and being at risk of frailty, while age and sex were not statistically significant. Frailty disability and musculoskeletal pain intensity were variables linearly associated with kinesiophobia, while quality of sleep and disability had a non-linear relationship with kinesiophobia.

CONCLUSION

Kinesiophobia needs to be evaluated and better understood in patients with HF to improve physical activity and exercise adherence. This study found that musculoskeletal pain intensity, quality of sleep, disability, and frailty risk have a significant association with kinesiophobia in patients with HF. Our results suggest multi-dimensional associations of kinesiophobia in patients with HF, which require further examination and understanding.

Repetitive ambulatory levosimendan as a bridge to heart transplantation

INTRODUCTION AND OBJECTIVES

Repetitive ambulatory doses of levosimendan are an option as a bridge to heart transplantation (HT), but evidence regarding the safety and efficacy of this treatment is scarce. The objective of the LEVO-T Registry is to describe the profile of patients on the HT list receiving levosimendan, prescription patterns, and clinical outcomes compared with patients not on levosimendan.

METHODS

We retrospectively reviewed all patients listed for elective HT from 2015 to 2020 from 14 centers in Spain.

RESULTS

A total of 1015 consecutive patients were included, of whom 238 patients (23.4%) received levosimendan. Patients treated with levosimendan had more heart failure (HF) admissions in the previous year and a worse clinical profile. The most frequent prescription pattern were fixed doses triggered by the patients' clinical needs. Nonfatal ventricular arrhythmias occurred in 2 patients (0.8%). No differences in HF hospitalizations were found between patients who started levosimendan in the first 30 days after listing and those who did not (33.6% vs 34.5%; P=.848). Among those who did not, 102 patients (32.9%) crossed over to levosimendan after an HF admission. These patients had a rate of 0.57 HF admissions per month before starting levosimendan and 0.21 afterwards. Propensity score matching analysis showed no differences in survival at 1 year after listing between patients receiving levosimendan and those who did not (HR, 1.03; 95%CI, 0.36-2.97; P=.958) or in survival after HT (HR, 0.97; 95%CI, 0.60-1.56; P=.958).

CONCLUSIONS

Repetitive levosimendan in an ambulatory setting as a bridge to heart transplantation is commonly used, is safe, and may reduce HF hospitalizations.

What motivates heart transplantation patients to exercise and engage in physical activity? A network analysis

AIMS

After heart transplantation (HTx), increments in physical activity (PA) are strongly recommended. However, participation rates in exercise-based cardiac rehabilitation and engagement in PA are insufficient in many patients. Hence, this study aimed to explore the central factors and the interconnections among distinct types of motivation to exercise, PA, sedentary time, psychosomatic, diet, and activity limitation characteristics in post-HTx patients.

METHODS AND RESULTS

This is a cross-sectional study involving 133 post-HTx patients (79 men, mean age 57 ± 13 years, mean time from transplantation 55 ± 42 months) recruited from an outpatient clinic in Spain. The patients were asked to fill in questionnaires measuring self-reported PA, motivation to exercise, kinesiophobia, musculoskeletal pain, quality of sleep, depression, functional capacity, frailty, sarcopenia risk, and diet quality. Two network structures were estimated: one network including PA and one network including sedentary time as nodes. The relative importance of each node in the network structures was determined using centrality analyses. According to the strength centrality index, functional capacity and identified regulation (subtypes of motivation to exercise) are the two most central nodes of the network (strength: z-score = 1.35-1.51). Strong and direct connections emerged between frailty and PA and between sarcopenia risk and sedentary time.

CONCLUSION

Functional capacity and autonomous motivation to exercise are the most promising targets of interventions to improve PA levels and sedentary time in post-HTx patients. Furthermore, frailty and sarcopenia risk were found to mediate the effects of several other factors on PA and sedentary time.

Practical Requirements for the Development of an Advanced Cardiorenal Unit

BACKGROUND

Heart failure is frequently associated with kidney disease, and patients with kidney disease are at increased risk of heart failure. The co-occurrence of both entities not only significantly increases morbidity and mortality but also complicates therapy.

SUMMARY

Cardiorenal syndrome often requires a broad, comprehensive, and multidisciplinary approach. As a result, a need has arisen to create specialized cardiorenal units that allow for rigorous and personalized management of this condition. Moreover, in some cases, cardiorenal syndrome is more complex, owing to an acute and critical situation that requires the concept of the cardiorenal unit to be extended toward advanced diagnostic and therapeutic positions, thus confirming the need for an advanced cardiorenal unit. The creation of these units constitutes a real challenge, necessitating a specific multilevel action plan, covering governance and management, type of patient, personnel requirements, service portfolio, care process, information systems, and other resources. Specific lines of action must be proposed for each of the relevant points in order to facilitate development of these units, together with continuous evaluation of unit activity through specific indicators, and to detect areas for improvement.

KEY MESSAGES

This study addresses the conditions and organizational characteristics that enable the creation, development, and continuous improvement of advanced cardiorenal units.

Annual evolution of the prescription of drugs with prognostic implications in acute decompensated heart failure with reduced ejection fraction

BACKGROUND

Quadruple therapy (renin angiotensin system inhibitors, beta-blockers, mineralocorticoid receptor antagonists and sodium/glucose cotransporter type 2 inhibitors [SGLT2i]) has become the current prognostic modifying treatment for heart failure (HF) with reduced ejection fraction (HFrEF). This study aimed to analyse the prescription´s evolution of this combination therapy, the analysis of each pharmacological group and the differences according to HF subgroups.

METHODS

Retrospective analysis of consecutive patients admitted for cardiac decompensation. Inclusion period: from 1-1-2020 to 12-31-2022. Patients with left ventricular ejection fraction > 40% and deceased during admission were excluded. Finally, 602 patients were included. These were divided into: (a) de novo HF without previous heart disease (n:108), (b) de novo with previous heart disease (n:107), and (c) non-de novo (n:387).

RESULTS

Over the study time, all pharmacological groups experienced an increase in drugs prescription (p < 0.001). The group with the largest prescription rate increase was SGLT2i (2020:20%, 2021:42.9%, 2022:70.4%; mean increase 47.2%). The discharge rate prescription of quadruple therapy increased progressively (2020:7.4%, 2021:21.1%, 2022:32.5%; mean increase 21.9%). The subgroup with the highest combined prescription in 2022 was de novo with previous heart disease (43.9%).

CONCLUSION

The pharmacological group with the largest prescription´s rate increase was SGLT2i. The percentage of patients discharged on quadruple therapy has progressed significantly in recent years, although it remains low. The most optimised subgroup at discharge was that of de novo HF with previous heart disease.

Effects of COVID-19 Lockdown on Heart Failure Patients: A Quasi-Experimental Study

INTRODUCTION

The COVID-19 lockdown has been associated with reduced levels of physical activity, quality of life, and sleep quality, but limited evidence exists for its impact on heart failure patients. This study examined the influence of the COVID-19 lockdown on these aspects in heart failure patients, with specific comparisons by age and sex.

METHODS

A quasi-experimental cross-sectional study of patients with heart failure was conducted. The assessment involved two time points: during the COVID-19 lockdown (March to June 2020) and post-lockdown (July to October 2020). A total of 107 HF patients participated, with assessments of overall PA (using the International Physical Activity Questionnaire), QoL (employing the Cantril Ladder of Life), and sleep quality (utilizing the Minimal Insomnia Symptom Scale) conducted during and after the COVID-19 lockdown.

RESULTS

HF patients reported lower levels of total PA (p = 0.001) and walking PA (p < 0.0001) during lockdown than after lockdown, whilst no differences were observed in QoL nor sleep quality. In addition, both younger and older patients reported lower walking PA and total PA during lockdown than after lockdown, while older patients reported lower QoL during lockdown than after lockdown. Moreover, both men and women reported lower walking PA and total PA during lockdown than after lockdown, whilst women reported lower QoL.

CONCLUSIONS

HF patients need improved PA programs during lockdowns, as these programs can elevate PA levels and enhance QoL, especially when faced with the risk of decompensation during health crises.

Technology Usage, Physical Activity, and Motivation in Patients With Heart Failure and Heart Transplantation

The cross-sectional study enrolled 231 patients with heart failure (n = 115; 60.87% were men; mean age, 74.34 ± 12.70 years) and heart transplantation (n = 116; 72.41% were men; mean age, 56.85 ± 11.87 years) who self-reported their technology usage, physical activity, and source of motivation for exercise. Patients with heart failure were significantly older ( P = .0001) than patients with heart transplantation. Physical activity levels in patients with heart failure decreased as the New York Heart Association classification increased. Patients with heart failure reported significantly lower physical activity than patients with heart transplantation ( P = .0008). Smartphones were the most widely used electronic device to access the Internet in both groups. Patients with heart transplantation seemed to use more than one device to access the Internet. In both groups, patients reporting more technology usage also reported higher levels of physical activity. Patients who accessed the Internet daily reported lower levels of physical activity. Whereas patients with heart failure identified encouragement by family members as a source of motivation for exercise, patients with heart transplantation reported that they were likely to exercise if motivated by their healthcare provider. Patients with heart failure and heart transplantation have unique technological and motivational needs that need consideration for mobile health-driven interventions.

Correlates of musculoskeletal pain and kinesiophobia in older adults with heart failure: A structural equation model

The study aimed to study the influence of musculoskeletal pain on kinesiophobia in patients with heart failure. This cross-sectional study recruited 107 heart failure patients aged 73.18±12.68 years (57% men) from an outpatient setting. Participants self-reported pain using the Musculoskeletal System Assessment Inventory and the Cornell Musculoskeletal Discomfort Questionnaire. Kinesiophobia was assessed with the Tampa Scale for Kinesiophobia-11. About 62% reported musculoskeletal pain, with knees (16.8%) and lower back (12.%) being the most painful locations. About 31% reported moderate levels and 24% indicated high levels of kinesiophobia. There were positive and significant associations between the indicators of pain and kinesiophobia. Results showed an adequate structural equation model fit to the data with musculoskeletal pain factors explaining 22.09% of the variance in kinesiophobia. Assessment of kinesiophobia in patients with heart failure with musculoskeletal pain is essential to improve self-care and overall quality of life.

Clinical phenotypes according to diuretic combination in acute heart failure

BACKGROUND

The treatment of congestion in heart failure (HF) is a challenge despite the therapeutic arsenal available. The aim of this study was to analyze different combinations of diuretics used to resolve congestion in patients admitted for decompensated HF and to define clinical profiles according to these treatments.

METHODS

Single-center study of 1,559 patients admitted for decompensated HF was done between 2016 and 2020. Patients were grouped according to the diuretic combination that led to clinical stabilization and discharge from the hospital: (1) Loop diuretic. (2) Loop diuretic + distal tubule (antialdosterone ± thiazides). (3) Loop diuretic + distal + proximal tubule (acetazolamide ± SGLT2 inhibitor). (4) Loop diuretic + distal tubule + collecting duct (tolvaptan). (5) Loop diuretic + distal + proximal + collecting duct. Based on these diuretic combinations, profiles with clinical, analytical, and echocardiographic differences were established.

RESULTS

There were more previous hospitalizations in groups 4 and 5 (p = 0.001) with a predominance of pulmonary congestion in profiles 1 and 2 and systemic congestion in 3, 4, and 5. Creatinine and CA125 were higher in profiles 4 and 5 (p = 0.01 and p = 0.0001), with no differences in NT-proBNP. Profiles 4 and 5 had a higher proportion of dilatation and depression of right ventricular (p = 0.0001) and left ventricular (p = 0.003) function. Diuretic therapy-defined groups showed difference in clinical characteristics.

CONCLUSIONS

The diuretic treatment used identifies five clinical profiles according to the degree of congestion, renal function, CA125, and right ventricular functionality. These profiles would guide the best diuretic treatment on admission.

[Usefulness of short-term peripheral ambulatory ultrafiltration in heart failure refractory to diuretics. Initial experience]

INTRODUCTION AND OBJECTIVE

In heart failure congestion is the most common symptom and diuretic resistance is frequent. This study aims to analyse whether short-term peripheral outpatient ultrafiltration (UF) is useful and safe in these patients.

MATERIAL AND METHODS

The first 5 patients ultrafiltrated for diuretic resistance in a fast-track unit of a referral hospital for 12hours were analysed.

RESULTS

These patients were on treatment with at least 3 oral diuretics; UF made it possible to reduce and/or withdraw some of them. The volume extracted during the procedure was 1520±271ml. There were significant changes in diuresis (PreUF: 1360±164, PostUF: 1670±254ml; P=.035), weight (PreUF: 69.6±14, PostUF: 66.2±15kg; P=.0001) and creatinine (PreUF: 2.1±0.3, PostUF: 1.8±0.4mg; P= 0.023).

CONCLUSIONS

In outpatients with heart failure and diuretic resistance, short-course peripheral UF was effective and safe.

Therapeutic approach in heart failure with poor diuretic response: peripheral ultrafiltration vs. conventional treatment

AIMS

Patients with heart failure (HF) admitted for decompensation often require high doses of intravenous diuretics. This study aims to analyse whether the use of peripheral ultrafiltration (UF) in patients hospitalized for acute HF with systemic-predominant congestion results in better hydric control, renal protection, and reduction of hospital stay compared with conventional treatment.

METHODS AND RESULTS

This study was a retrospective, comparative, single-centre study of 56 patients admitted for HF with systemic congestion with a poor diuretic response after diuretic escalation. One group underwent peripheral UF (35 patients) and others were maintained on intense diuretic treatment (control group, 21 patients). The diuretic response and days of hospital stay were compared between and within groups. The baseline characteristics of both groups were similar: males with right ventricular failure and renal dysfunction. The inter-group analysis showed that patients who received UF had better glomerular filtration rate (GFR; UF: 39.2 ± 18.2 vs. control: 28.7 ± 13.4 mL/min; P = 0.031) and higher diuresis (UF: 2184 ± 735 vs. control: 1335 ± 297 mL; P = 0.0001) at hospital discharge despite less need for diuretic drugs. Days of hospital stay were shorter in the UF group (UF: 11.7 ± 10.1 vs. control: 19.1 ± 14.4 days; P = 0.027). Intra-group analysis showed that patients receiving UF improved GFR, increased diuresis, and reduced weight at discharge (P < 0.001), whereas patients on conventional treatment only experienced improved weight but worsening renal function at discharge.

CONCLUSIONS

In patients with acute HF with systemic congestion and diuretic resistance, UF compared with conventional treatment produces greater decongestion and renal protection, reduces the total diuretic load, and shortens the length of hospital stay.

Mortality After the First Hospital Admission for Acute Heart Failure, De Novo Versus Acutely Decompensated Heart Failure With Reduced Ejection Fraction

It is not clear to date whether a first admission in heart failure (HF) marks a worse evolution in patients not previously diagnosed with HF ("de novo HF") than those already diagnosed as outpatients ("acutely decompensated HF"). The aim of the study was to analyze whether survival in patients admitted for de novo HF differs from the survival in those admitted for a first episode of decompensation but with a previous diagnosis of HF. This study includes an analysis of 1,728 patients admitted for decompensated HF during 9 years. Readmissions and patients with left ventricular ejection fraction ≥50% were excluded (finally, 524 patients analyzed). We compared de novo HF (n = 186) in patients not diagnosed with HF, although their structural heart disease was defined, versus acutely decompensated HF (n = 338). The clinical profiles in both groups were similar. The de novo HF group more frequently presented with normal right ventricular function, with less presence of severe tricuspid regurgitation. The probability of survival was low in both groups. Thus, the median life in the de novo HF group was 2.1 years and in the acutely decompensated HF group, 3.5 years. There was a lower probability of long-term survival in the de novo HF group (p = 0.035). The variables associated with mortality were age (p <0.0001), ischemic heart disease (p <0.0001), hypertension (p = 0.009), obesity (p = 0.025), diabetes (p = 0.001), and N-terminal pro-brain natriuretic peptide at admission (p <0.0001). A higher glomerular filtration rate was associated with better survival (p = 0.033). De novo HF was associated with a higher mortality than chronic HF with acute decompensation (hazard ratio 1.53, 95% confidence interval 1.03 to 2.27, p = 0.036). In conclusion, the first admission for HF decompensation in patients with no previous diagnosis of HF identifies a subgroup of patients with higher long-term mortality.

Is the Benefit of Treating Iron Deficiency Greater in Acute Heart Failure with Renal Dysfunction?

BACKGROUND

This study aims to analyse whether in acute heart failure (AHF) with iron deficiency (ID), the administration of ferric carboxymaltose (FCM) produces a greater benefit in renal dysfunction.

METHODS

A total of 812 consecutive patients admitted for AHF and ID were studied. Untreated (n:272) and treated (n:540) patients were compared. The six-month prevalence of a combined event (readmission for HF, all-cause death, and emergency department visit for decompensation) was analysed. Three grades of renal dysfunction (KDIGO) were compared, Group 1 (grades 1 and 2), Group 2 (grades 3a and 3b), and Group 3 (grades 4 and 5).

RESULTS

There were differences in sex distribution (untreated group: males 39.7% vs. treated group: males 51.9%; p < 0.001). Sex-adjusted combined event analysis showed a greater benefit in Group 1 (OR: 0.31, 95% CI:0.19-0.5; p < 0.001) and Group 2 (OR: 0.23, 95% CI:0.14-0.38; p < 0.001), but not in Group 3 (OR: 0.51, 95% CI:0.17-0.55; p: 0.237).

CONCLUSIONS

The administration of FCM in patients with AHF and ID reduces the combined event analysed. The benefit is greater when renal dysfunction is present, except in very advanced degrees where no significant benefit is obtained.

Physical Activity Readiness in Patients with Heart Failure

The aim of this study was to explore the readiness for physical activity (PA) and its related factors in patients with heart failure. This cross-sectional study included 163 patients with heart failure (mean age 66 ± 16, 50% female). The ability to safely engage in PA was assessed with the PA Readiness Questionnaire (PAR-Q). Psychological readiness was measured using two questionnaires, namely: Exercise Self-efficacy Scale and the Motivation for PA and Exercise/Working Out. A multivariate analysis of covariance was conducted to test the effect of background variables on readiness for PA. 64% (n = 105) of patients reported not being able to safely engage in PA, 80% (n = 129) reported low self-efficacy, and 45% (n = 74) were extrinsically motivated indicating external factors drove their motivation. Factors that positively influenced the PA readiness included lower age (p < 0.01), being male (p < 0.01), being married (p < 0.01), having higher education (p < 0.01), being in NYHA-class I compared with II (p < 0.01), less time since diagnosis (p < 0.01), lower BMI (p = 0.02), and not suffering from COPD (p = 0.02). Prior to recommending exercise, assessment of safety to engage in PA along with self-efficacy and motivation in patients with heart failure is essential.

Well-Being, Physical Activity, and Social Support in Octogenarians with Heart Failure during COVID-19 Confinement: A Mixed-Methods Study

BACKGROUND

This study aimed to compare well-being and physical activity (PA) before and during COVID-19 confinement in older adults with heart failure (HF), to compare well-being and PA during COVID-19 confinement in octogenarians and non-octogenarians, and to explore well-being, social support, attention to symptoms, and assistance needs during confinement in this population.

METHODS

A mixed-methods design was performed. Well-being (Cantril Ladder of Life) and PA (International Physical Activity Questionnaire) were assessed. Semi-structured interviews were performed to assess the rest of the variables.

RESULTS

120 participants were evaluated (74.16 ± 12.90 years; octogenarians = 44.16%, non-octogenarians = 55.83%). Both groups showed lower well-being and performed less PA during confinement than before (p < 0.001). Octogenarians reported lower well-being (p = 0.02), higher sedentary time (p = 0.03), and lower levels of moderate PA (p = 0.04) during confinement. Most individuals in the sample considered their well-being to have decreased during confinement, 30% reported decreased social support, 50% increased their attention to symptoms, and 60% were not satisfied with the assistance received. Octogenarians were more severely impacted during confinement than non-octogenarians in terms of well-being, attention to symptoms, and assistance needs.

CONCLUSIONS

Well-being and PA decreased during confinement, although octogenarians were more affected than non-octogenarians. Remote monitoring strategies are needed in elders with HF to control health outcomes in critical periods, especially in octogenarians.

Why Iron Deficiency in Acute Heart Failure Should Be Treated: A Real-World Clinical Practice Study

Background. This study aims to determine whether the administration of ferric carboxymaltose (FCM) in patients with acute heart failure (AHF) and iron deficiency (ID) improves morbidity and mortality. Methods. We studied 890 consecutive patients admitted for AHF. Patients were divided into six groups according to reduced left ventricular ejection fraction (HFrEF) or preserved (HFpEF), presence of ID, and administration of FCM. Emergency visits, re-admissions, and all-cause mortality were assessed at 6 months. Results. The overall prevalence of ID was 91.2%. In the HFrEF group, no differences were found in isolated events when patients with untreated vs. treated ID were compared, while differences were found in the combined event rate (p = 0.049). The risk calculation showed an absolute risk reduction (ARR) of 10% and relative risk reduction (RRR) of 18%. In HFpEF there was a positive trend with regard to the combined event (p = 0.107), with an ARR of 9% and an RRR of 15%. The number of patients we needed to treat to prevent a combined event was 10.5 in HFrEF and 10.8 in HFpEF. Conclusions. FCM in AHF reduced the combined event rate of emergency visits, re-admission, and all-cause death at 6 months in HF with left ventricular ejection fraction <50%, and showed a positive trend in HFpEF.

COVID-19 Infection in Heart Transplants in Pre- and Postvaccination Periods

BACKGROUND

Heart transplant (HTx) recipients constitute a group vulnerable to COVID-19 infection. Vaccination has been a turning point in the evolution of the pandemic. The objective was to analyze a series of HTx recipients with COVID-19 prior to vaccination and post vaccination.

METHODS

Inclusion: All HTx recipients diagnosed with COVID-19 (February 2020 to April 2022).

EXCLUSION

HTx younger than 16 years. They were subdivided into prevaccination period (February 2020 to February 2021) and postvaccination period (March 2021 to April 2022). They were classified into 3 groups according to severity. Group 1: mild symptoms without admission. Group 2: admission for nonsevere pneumonia. Group 3: severe pneumonia according to American Thoracic Society/Infectious Diseases Society of America criteria. The general therapeutic attitude before and after vaccination was similar in both groups.

RESULTS

A total of 65 HTx recipients have had COVID-19 to date (10.7% of the 374 HTx recipients alive). In the prevaccination period, 22 HTx recipients presented the disease (Fig 1A): 27% in group 1; 59% were admitted for nonsevere pneumonia (group 2), with favorable evolution and a mean stay of 16 days; and 14% in group 3 (criteria for severe pneumonia), with 2 HTx recipients dying in this group. In the postvaccination period, 43 HTx recipients have presented COVID-19 (Fig 1B), 49% in group 1, 42% in group 2, and 9% in group 3. The hospital stay is slightly reduced to 15 days and 3 of the 4 patients in group 3 have died (mortality rate 7%).

CONCLUSIONS

A significant number of HTx recipients have been affected by COVID-19, associating high mortality in severe forms both in the pre- and postvaccination period. In our series of patients, vaccination has reduced the percentage of hospitalization for nonsevere pneumonia slightly below the average hospitalization and mortality.

Experience with the potassium binder patiromer in hyperkalaemia management in heart failure patients in real life

AIMS

Hyperkalaemia (HK) is common in heart failure (HF) patients, related to renal dysfunction and medical treatment. It limits medical therapy optimization, which impacts prognosis. New potassium (K) binders help control HK, allowing better medical management of HF.

METHODS AND RESULTS

A retrospective multicentre register included all outpatients with HF and HK (K ≥ 5.1 mEq/L) treated with patiromer according to current recommendations. We evaluated analytic and clinical parameters before starting the treatment and at 7, 30 and 90 days, as well as adverse events related to patiromer and treatment optimization. We included 74 patients (71.6% male) with a mean age of 70.8 years (SD 9.2). Sixty-seven patients (90.5%) presented HK in the previous year. Forty patients (54.1%) underwent down-titration of a renin-angiotensin-aldosterone inhibitor (RAASi) or a mineralocorticoid receptor antagonist (MRA), and 27 (36.5%) stopped any of them due to HK. Initial K was 5.5 mEq/L (SD 0.6), with a significantly reduction at 7 days (4.9 mEq/L (SD 0.8); P < 0.001), maintained at 90 days (4.9 mEq/L (SD 0.8); P < 0.001). There were no other electrolyte disturbances, with a slight improvement in renal function [glomerular filtration rate 39.6 mL/min (SD 20.4) to 42.7 mL/min (SD 23.2); P = 0.005]. Adverse events were reported in 33.9% of patients, the most common being hypomagnesaemia (16.3%), gastrointestinal disturbances (14.9%) and HK (2.8%). Withdrawal of patiromer was uncommon (12.2%) due to gastrointestinal disturbances in 66.7% of cases. Nine patients (12.2%) started on a RAASi, and 15 patients (20.3%) on an MRA during the follow-up. Forty-five patients (60.8%) increased the dose of RAASi or MRA, increasing to target doses in 5.4 and 10.8% of patients, respectively. At 90 days, NTproBNP values were reduced from 2509.5 pg/mL [IQR 1311-4,249] to 1396.0 pg/mL [IQR 804-4263]; P = 0.003, but the reduction was only observed in those who optimized HF medical treatment [NTproBNP from 1950.5 pg/mL (IQR 1208-3403) to 1349.0 pg/mL (IQR 804-2609); P < 0.01]. NYHA functional class only improved in 7.5% of patients, corresponding with those who optimized HF medical treatment. Compared with the previous 3 months before patiromer treatment, the rate of hospitalization was reduced from 28.4 to 10.9% (P < 0.01), and the emergency room visits from 18.9 to 5.4% (P < 0.01).

CONCLUSIONS

In a real-life cohort of patients with HF, patiromer reduced and maintained K levels during 3 months of follow-up. The most common adverse events were hypomagnesaemia and gastrointestinal disturbances. Patiromer helps optimize medical treatment, increasing the percentage of patients treated with RAASi and MRA at target doses. At the end of follow-up, natriuretic peptides values and hospital visits were reduced, suggesting the benefit of optimizing HF medical treatment.

Physical activity enjoyment, exercise motivation, and physical activity in patients with heart failure: A mediation analysis

Objective

To determine whether physical activity enjoyment mediated the association between motivation and physical activity in patients with heart failure.

Design and setting

A cross-sectional study at the cardiology clinic in the university hospital in Valencia, Spain

Subjects

A total of 134 patients with heart failure.

Main measurements

Physical activity was assessed with the International Physical Activity Questionnaire, motivation was assessed with the Exercise Motivation Index and Physical Activity Enjoyment was assessed with the Physical Activity Enjoyment Scale.

Analysis

Mediation analysis using Hayes’ PROCESS macro (Model 4) for SPSS.

Results

The mean age of the sample was 70 ± 14 years, 47 patients were female (35%), and 87 patients were in New York Heart Association I/II (67%). A positive relationship was found between exercise motivation and physical activity (t = 4.57, p < .01) and physical activity enjoyment (t = 11.52, p < .01). Physical activity enjoyment was found to positively affect physical activity (t = 3.50, p < .01). After controlling for physical activity enjoyment, the effect of exercise motivation on physical activity changed from a significant to non-significant (t = 1.33, p = .89), indicating that enjoyment completely mediated the relationship between motivation and physical activity. Overall, 25% of the variation in physical activity was explained by the mediation model.

Conclusions

Physical activity enjoyment mediates the relationship between exercise motivation and physical activity in patients with heart failure. This means that even highly motivated heart failure patients may not be physically active if they do not enjoy the physical activity.

Epidemiological Study of Tricuspid Regurgitation After Cardiac Transplantation. Does it Influence Survival?

Background: Tricuspid valve disease is the most frequent valvulopathy after heart transplantation (HTx). Evidence for the negative effect of post-transplant tricuspid regurgitation (TR) on survival is contradictory. The aim of this study was to analyze the causes of post-transplant TR and its effect on overall mortality. Methods: This is a retrospective observational study of all transplants performed in two Spanish centers (1009 patients) between 2000 and 2019. Of the total number of patients, 809 had no TR or mild TR and 200 had moderate or severe TR. The etiology of TR was analyzed in all cases. Results: The prevalence of moderate and severe TR was 19.8%. The risk of mortality was greater when TR was caused by early primary graft failure (PGF) or rejection (p < 0.05). TR incidence was related to etiology: incidence of PGF-induced TR was higher in the first period, while TR due to rejection and undefined causes occurred more frequently in three periods: in the first year, in the 10-14-year period following HTx, and in the long term (16-18 years). In the multivariable analysis, TR was significantly associated with mortality/retransplantation (HR:1.04, 95% CI:1.01-1.07, p:0.02). Conclusion: The development of TR after HTx is relatively frequent. The annual incidence depends on TR severity and etiology. The risk of mortality is greater in severe TR due to PGF or rejection.

Short-Term Changes in Left and Right Ventricular Cardiac Magnetic Resonance Feature Tracking Strain Following Ferric Carboxymaltose in Patients With Heart Failure: A Substudy of the Myocardial-IRON Trial

Background

The mechanisms explaining the clinical benefits of ferric carboximaltose (FCM) in patients with heart failure, reduced or intermediate left ventricular ejection fraction, and iron deficiency remain not fully clarified. The Myocardial‐IRON trial showed short‐term cardiac magnetic resonance (CMR) changes suggesting myocardial iron repletion following administration of FCM but failed to find a significant increase in left ventricular ejection fraction in the whole sample. Conversely, the strain assessment could evaluate more specifically subtle changes in contractility. In this subanalysis, we aimed to evaluate the effect of FCM on the short‐term left and right ventricular CMR feature tracking derived strain.

Methods and Results

This is a post hoc subanalysis of the double‐blind, placebo‐controlled, randomized clinical trial that enrolled 53 ambulatory patients with heart failure and left ventricular ejection fraction <50%, and iron deficiency [Myocardial‐IRON trial (NCT03398681)]. Three‐dimensional left and 2‐dimensional right ventricular CMR tracking strain (longitudinal, circumferential, and radial) changes were evaluated before, 7 and 30 days after randomization using linear mixed‐effect analysis. The median (interquartile range) age of the sample was 73 years (65–78), and 40 (75.5%) were men. At baseline, there were no significant differences in CMR feature tracking strain parameters across both treatment arms. At 7 days, the only global 3‐dimensional left ventricular circumferential strain was significantly higher in the FCM treatment‐arm (difference: −1.6%, P=0.001). At 30 days, and compared with placebo, global 3‐dimensional left ventricular strain parameters significantly improved in those allocated to FCM treatment‐arm [longitudinal (difference: −2.3%, P<0.001), circumferential (difference: −2.5%, P<0.001), and radial (difference: 4.2%, P=0.002)]. Likewise, significant improvements in global right ventricular strain parameters were found in the active arm at 30 days (longitudinal [difference: −3.3%, P=0.010], circumferential [difference: −4.5%, P<0.001], and radial [difference: 4.5%, P=0.027]).

Conclusions

In patients with stable heart failure, left ventricular ejection fraction <50%, and iron deficiency, treatment with FCM was associated with short‐term improvements in left and right ventricular function assessed by CMR feature tracking derived strain parameters.

Registration

URL: https://www.clinicaltrials.gov; Unique identifier: NCT03398681.

Influence on kinesiophobia by disability, physical, and behavioural variables after a heart transplantation

BACKGROUND

From clinical experience, kinesiophobia represents a barrier to being physically active after a heart transplantation (HTx), but studies in this field are lacking. Identifying the factors associated with kinesiophobia is essential to determine preventive interventions to avoid negative consequences for health.

AIMS

To study the influence of disability, physical, and behavioural variables on kinesiophobia in patients with an HTx.

METHODS

A total of 117 patients with an HTx [51 women; mean age 56 (SD 12.1) years] were recruited at an outpatient clinic. These patients were asked to fill in questionnaires measuring kinesiophobia, self-reported physical activity (PA), exercise self-efficacy, motivation for PA, and disability. A multiple regression analysis was conducted to examine the statistical prediction of kinesiophobia as a dependent variable, with the questionnaires, gender and education as independent variables.

RESULTS

The independent variables explained 70% of the variance in kinesiophobia. The prediction model was significant (F = 32.1, P < 0.001). The time from transplantation (standardised coefficient, beta; -0.17), the total exercise self-efficacy (-0.16), extrinsic motivation (-0.23), and the disability total score (0.63) were significant predictors of kinesiophobia, while the independent variables of gender, education, intrinsic motivation, and the PA total score were not significant.

CONCLUSIONS

This study highlights that a short time from transplantation, low self-efficacy, low extrinsic motivation, and a high level of disability explained high levels of kinesiophobia in patients after an HTx. These results suggest that an increased awareness of the biopsychosocial health perspective is essential in order to maximising patient outcomes after an HTx.

Impact of intravenous ferric carboxymaltose on heart failure with preserved and reduced ejection fraction

AIMS

Heart failure (HF) is a proinflammatory disease often associated with the onset of iron deficiency (ID). ID alters mitochondrial function, reducing the generation of cellular energy in skeletal muscle and cardiomyocytes. This study aimed to analyse the response of patients with HF to intravenous iron administration according to the type of HF: preserved ejection fraction (HFpEF) or reduced ejection fraction (HFrEF).

METHODS AND RESULTS

We conducted a retrospective, single-centre study of 565 consecutive outpatients diagnosed with HF, recruited over 5 years, who were given intravenous ferric carboxymaltose (FCM) for the treatment of ID [defined as ferritin < 100 μg/L or ferritin 100-300 μg/L with transferrin saturation (TSAT) < 20%]. Clinical, laboratory, and echocardiographic parameters were analysed before and after administration. After FCM administration, overall ferritin, TSAT, and haemoglobin levels increased up to 5-fold, 1.6-fold, and 1.1-fold, respectively, relative to baseline values in HF patients with reduced and preserved ejection fraction (P < 0.0001), with a greater increase in ferritin and TSAT in HFpEF patients. The left ventricular ejection fraction of the overall series improved by 8 percentage points in both types of HF (from 40% to 48%, P < 0.0001). The percentage of patients with normalization of right ventricular function increased by 6.9 points (from 74.1% to 81%) in HFpEF patients and by 6.4 points (from 53% to 59.4%) in the HFrEF subgroup (P < 0.0001). New York Heart Association functional status slightly improved, from a median of 2.4 (interquartile range, IQR: 2-2.7) to 1.9 (IQR: 1.5-2.5; P < 0.0001) after FCM in both types of HF. No changes were noted in plasma levels of liver enzymes, creatinine, or natriuretic peptide (P > 0.05).

CONCLUSIONS

Intravenous iron administration appeared to improve ejection fraction and cardiac functional status in outpatients with ID and HF with both preserved and reduced ejection fraction.

Creatinine and NT-ProBNP levels could predict the length of hospital stay of patients with decompensated heart failure

BACKGROUND

Heart failure (HF) is a clinical syndrome that causes high morbidity and mortality with a high number of admissions and sometimes prolonged admissions. This study aimed at assessing whether parameters detected during the first 24 h of admission may predict a prolonged hospital stay in patients admitted to hospital for decompensated HF.

METHODS

From January 2016 to December 2019, 2359 admissions of decompensated HF were recorded. In-hospital transfers, de novo HF, deaths and scheduled admissions were discarded to homogenise the sample. Finally, 1196 patients were included. The sample was divided into two groups: (a) non-prolonged admission (n = 643, admission ≤7 days) or (b) prolonged admission (n = 553, admission >7 days). Clinical, analytical, electrocardiographic and echocardiographic variables obtained during the first 24 h of admission were analysed.

RESULTS

Univariate differences were found at admission in NT-ProBNP, creatinine, history of cardiac surgery, smoking and alcoholism, left and right ventricular ejection fraction, systolic blood pressure and heart rate. The ROC analysis showed significant areas under the curve for the NT-ProBNP (AUC: 0.63, 95% CI: 0.60-0.67; p < 0.001) and creatinine (AUC: 0.69, 95% CI: 0.66-0.72; p < 0.0001). The variables associated with prolonged hospital admission were NT-ProBNP (OR: 1, 95% CI: 1-1; p < 0.001), creatinine (OR: 2.2, 95% CI: 1.8-2.7; p < 0.0001) and previous smoking (OR: 1.5, 95% CI: 0.4-1; p < 0.02).

CONCLUSIONS

Variables such as creatinine and NT-ProBNP at hospital admission may define a subgroup of patients who will probably have a long hospital stay. Therefore, the planning of hospital care and transition to discharge may be enhanced.

Clinical outcomes vary between the Shuttle Walk Test and Stress Test in patients with coronary artery disease

Purpose

The purpose of this study was to determine if the Incremental Shuttle Walk Test (ISWT) can elicit similar patient responses as a treadmill stress test in patients with coronary artery disease (CAD).

Methods

Both the stress test and the ISWT were performed by 172 participants, aged 60.67±10.23 years. We screened participants for unstable angina, severe aortic stenosis, uncontrolled hypertension, and excluded if unable to walk on a treadmill. Outcome measures (signs and symptoms) included: i) patient-reported chest pain; ii) patient-reported breathlessness/exhaustion and not being able to keep up with test protocol; and iii) able to reach target HRmax. Additionally, EKG changes during the stress test were monitored for ST changes or arrhythmias.

Results

During the stress test, 15 participants reported chest pain, 23 participants reached target HRmax. No participants reported chest pain and 2 participants reached target HRmax during the ISWT. Participants reporting chest pain had a higher mean BMI and significant difference in METS (p < 0.001) during the stress test and walking distance (p = 0.03) when compared with patients who did not report chest pain during the stress test. Breathlessness and not being able to keep up with protocol were the most commonly reported in both tests. Changes in EKG were observed in 38 participants in the stress test.

Conclusion

A maximal effort stress test is better at eliciting ischemic signs and symptoms and a superior tool for diagnosis of progression or severity of CAD than the ISWT. Appropriate selection of exercise tests is important in the clinical setting.

COVID-19 and Heart Transplantation. Initial Experience in a Tertiary Hospital

BACKGROUND

Coronavirus disease 2019 (COVID-19) is a viral infectious disease caused by the severe acute respiratory syndrome coronavirus 2 virus that is affecting the entire world population. The objective of this study was to analyze the repercussion of the disease in a group of patients at risk such as heart transplant recipients.

METHODS

From February 2020 to February 2021, heart transplant recipients diagnosed with COVID-19 were consecutively included. The total number of transplant recipients in outpatient follow-up at that time was 381. Three levels of infection were determined: group A: asymptomatic patients or with trivial symptoms without the need for hospital admission (6 patients); group B: patients admitted to the hospital for respiratory symptoms (12 patients); and group C: patients with severe symptoms and need for admission to the critical care unit (2 patients). At each risk level, medical performance was different: group A: close control, no therapeutic modification; group B: reduction of calcineurin inhibitor and substitution of mycophenolate mofetil for everolimus; group C: reduction of calcineurin inhibitor and withdrawal of mycophenolate mofetil.

RESULTS

The prevalence of infection in the series was 5.2%. Most patients admitted had a pathologic chest x-ray with fever, cough, dyspnea, or vomiting. The change in immunosuppression performed in patients in group 2 was well tolerated and there was no graft rejection. Antiviral treatment was little used. However, boluses of steroids and some antibiotics were used frequently. The need for supplemental oxygen was 50% in group 2 and 100% in group 3.

CONCLUSIONS

A significant number of transplant recipients will be affected by COVID-19 (5.3%). Management of the infection will depend on the severity of the infection and must be based on a balance between reduction and adjustment of immunosuppression, strict control of the cardiologic situation, and treatment of the infection.

Value of SERCA2a as a Biomarker for the Identification of Patients with Heart Failure Requiring Circulatory Support

Background: Heart failure (HF) alters the nucleo-cytoplasmic transport of cardiomyocytes and reduces SERCA2a levels, essential for intracellular calcium homeostasis. We consider in this study whether the molecules involved in these processes can differentiate those patients with advanced HF and the need for mechanical circulatory support (MCS) as a bridge to recovery or urgent heart transplantation from those who are clinically stable and who are transplanted in an elective code. Material and method: Blood samples from 29 patients with advanced HF were analysed by ELISA, and the plasma levels of Importin5, Nucleoporin153 kDa, RanGTPase-Activating Protein 1 and sarcoplasmic reticulum Ca²⁺ ATPase were compared between patients requiring MCS and those patients without a MCS need prior to heart transplantation. Results: SERCA2a showed significantly lower levels in patients who had MCS compared to those who did not require it (0.501 ± 0.530 ng/mL vs. 1.123 ± 0.661 ng/mL; p = 0.01). A SERCA2a cut-off point of 0.84 ng/mL (AUC 0.812 ± 0.085, 95% CI: 0.646–0.979; p = 0.004) provided a 92% sensitivity, 62% specificity, 91% negative predictive value and 67% positive predictive value. Conclusions: In this cohort, patients with advanced HF and a need for MCS have shown significantly lower levels of SERCA2a as compared to stable patients without a need for MCS prior to heart transplantation. This is a small study with preliminary findings, and larger-powered dedicated studies are required to confirm and validate these results.

Complications After Heart Transplantation According to the Type of Pretransplant Circulatory/Ventricular Support

BACKGROUND

The purpose of the study was to analyze postcardiac transplant complications in patients who received transplants with short-term mechanical ventricular assist devices and to compare complications according to the type of device.

METHODS

Ambispective and consecutive study of urgent heart transplants from 2015 to 2019. Pediatric transplants, retransplants, and combined transplants were excluded. A total of 45 patients were analyzed in 4 groups: (1) venoarterial extracorporeal membrane oxygenation (ECMO) implanted <10 days before heart transplant (HTx) (n = 17); (2) ECMO implanted for more than 10 days (n = 8); (3) Levitronix Centrimag implanted in INTERMACS 2 to 3 patients (n = 13); and (4) Levitronix Centrimag implanted in INTERMACS 2 patients (n = 7). ECMO assistance was in INTERMACS 2 and severe right ventricular dysfunction. Levitronix Centrimag was implanted in patients with preserved right ventricular function.

RESULTS

Primary graft failure associated with the need for ECMO was more frequent in patients with ECMO than with Levitronix (P < .05). When comparing the 2 groups with ECMO, an implant more than 10 days before HTx was associated, after transplant, with a longer stay in the critical care unit (P = .02), higher mortality (P = .03), and an increase in complications in general. When comparing the 2 groups with Levitronix, all the parameters studied were much better when the Levitronix was implanted in INTERMACS 2-3 (P < .05). On the other hand, all cases of deep vein thrombosis and pulmonary thromboembolism occurred in patients who were assisted with ECMO.

CONCLUSIONS

HTx with mechanical assist devices is associated with significant complications. ECMO produces more complications than the Levitronix Centrimag, although they are related to the days of implantation. The best group are patients implanted with a Levitronix in INTERMACS 2-3.

Analysis of the Intrahospital and Long-Term Survival of Heart Transplant Patients With a Short-Term Mechanical Assistance Device

BACKGROUND

The purpose of this study was to compare early and late survival among patients who have undergone heart transplantation (HTx) with a short-term mechanical assist device.

METHODS

This was an ambispective, single-center, consecutive study of patients undergoing urgent HTx for 5 years. Pediatric transplants, retransplants, and combined transplants were excluded. Forty-five patients were included. Four groups were analyzed: those with venoarterial extracorporeal membrane oxygenation (ECMO) implanted <10 days before HTx; those with ECMO implanted for >10 days; patients classified as INTERMACS 2 to 3 with Levitronix Centrimag implanted; and those classified as INTERMACS 2 with Levitronix Centrimag implanted. Survival and the influence of orotracheal intubation (OI) at the time of transplantation were compared.

RESULTS

There were differences in in-hospital mortality (P = .03) and total mortality (P = .06). The groups with the highest risk for mortality were those who carried ECMO for >10 days before transplantation or those classified as INTERMACS 2 with Levitronix Centrimag implanted. In these groups, the need for posttransplant circulatory support was also greater (P = .04) as was the length of stay in critical care (P = .02). The need for OI during the days of care and until transplantation had a negative effect on survival in all groups (P < .1).

CONCLUSIONS

There are different risk subgroups among patients who are transplanted with a circulatory/ventricular assist device. The lowest mortality occurs when the days of ECMO implantation are <10 and when the implanted device is a Levitronix Centrimag in INTERMACS 2 to 3 profile, particularly when the patient reaches the HTx without requiring OI.

Usefulness of Immunoglobulin A in Patients With Decompensated Heart Failure: Is It a Future Marker of Congestion? Preliminary Experience

BACKGROUND

The purpose of this study was to analyze whether the level of IgA is related to right ventricular function and systemic congestion in patients with decompensated heart failure (HF) and reduced ejection fraction (EF).

METHODS

This was a consecutive prospective and observational study of hospitalized patients diagnosed with decompensated HF with reduced EF. The recruitment period lasted 2 months. In the first 24 hours after admission, clinical assessment, general laboratory tests, determination of HF biomarkers, IgA and echocardiographic study were performed. Patients were classified into 2 groups according to whether the plasma IgA level was lower (n = 11) or higher than 300 mg/dL (n = 12).

RESULTS

Significant differences in IgA levels were found in the peripheral congestion variables (no congestion: 232, interquartile range [IQR], 125-310 mg/dL vs congestion: 429, IQR, 308-520 mg/dL; P = .03). There were also differences in echocardiographic parameters of right ventricular function, with a greater deterioration of right ventricular function in the group with higher IgA levels (P < .05). There was a highly significant correlation between tricuspid annulus systolic excursion values and IgA levels (P = .004).

CONCLUSIONS

In decompensated HF, patients with greater clinical congestion and echocardiographic parameters of right ventricular dysfunction have higher plasma IgA levels. This study is a preliminary experience that will help to establish the basis of the cardiointestinal syndrome as a clinical picture of systemic congestion in HF.

Administration of Subcutaneous Furosemide in Elastomeric Pump vs. Oral Solution for the Treatment of Diuretic Refractory Congestion

INTRODUCTION

The most common symptom in heart failure (HF) is congestion, which can be refractory to diuretic treatment.

AIM

To verify whether, in patients with advanced HF and diuretic resistance, subcutaneous furosemide or furosemide in an oral solution can improve the clinical-analytical status.

METHODS

From 2018 to 2020, 27 consecutive outpatients with diuretic resistance, not candidates for other alternatives, were recruited. Patients were treated either with subcutaneous furosemide in elastomeric pump (n: 10) or with oral solution (n: 17) for 5 days.

RESULTS

The functional status (NYHA) improved with subcutaneous administration (predose: 3.8 ± 0.5 vs. postdose: 3.1 ± 0.7; p: 0.02) and oral solution (predose: 3.7 ± 0.3 vs. postdose: 2.5 ± 0.7; p: 0.0001). Weight loss was greater with the oral solution (predose: 85.5 ± 19.5 vs. postdose: 81.3 ± 18.8Kg; p: 0.0001) than subcutaneous (predose: 81.6 ± 15.9 vs. postdose: 80.4 ± 15.1kg; p: 0.16). Creatinine showed a non-significant increase in both groups. The number of hospital visits showed no difference between both options.

CONCLUSIONS

The administration of furosemide, both subcutaneously by elastomeric pump or drinking the oral solution, is effective for the treatment of congestion in advanced HF refractory to diuretic treatment.

Impact of Circulatory Assistance in the Early Evolution After Heart Transplantation. Unicentric Experience

BACKGROUND

Heart transplantation (HT) is the reference treatment for patients with terminal heart failure. In recent years there has been a progressive increase in HT procedures in patients who have a circulatory support (CS).

METHODS

This is a retrospective single-center study of 293 consecutive patients who underwent HT from 2009 to 2018, analyzing the evolution of the 2 cohorts: patients with and without CS as a bridge to HT. Baseline and evolutionary clinical data collected following the usual follow-up protocol were recorded, including clinical events observed during the follow-up 1 year after the procedure.

RESULTS

The subgroup of patients transplanted with CS showed a higher incidence of primary graft failure, frequent infection, and mortality. A tendency toward lower cardiac allograft vasculopathy was observed in this subgroup. Mechanical ventilation added to the CS resulted in a higher incidence of primary graft failure, infection, and renal dysfunction. The CS variable as a bridge to HT was shown to be predictive of 1-year mortality in both univariate (odds ratio, 1.84; 95% confidence interval, 1.03-3.3; P = .038) and multivariate (odds ratio, 2.1; 95% confidence interval, 1.01-4.3; P = .047) analyses.

CONCLUSIONS

In our experience, CS as a bridge to HT results in a higher incidence of primary graft failure, frequent infection, and mortality at 1-year follow-up. Mechanical ventilation added to CS has a clear unfavorable prognostic impact. CS as a bridge to HT was shown to be predictive of 1-year mortality in both univariate and multivariate analyses.

Depression mediates physical activity readiness and physical activity in patients with heart failure

Aims

Although physical activity (PA) and exercise are essential for patients with heart failure (HF), adherence to the recommended guidelines is low. Not much is known about the mediating effect of HF patients' mental state with their readiness for PA and reported activity levels. The purpose of this study is to investigate the mediatory effect of depression on PA readiness (physical limitation and psychological readiness) and self‐reported PA in patients with HF.

Methods and results

In this cross‐sectional study, 163 New York Heart Association Class I and II HF patients, during their clinic visit, reported on their physical limitation (PAR‐Q) and psychological readiness [self‐efficacy (ESES) and motivation (RM 4‐FM)] for PA, depression (HADS‐D), and PA (s‐IPAQ). Mediation analysis was performed to test the mediating effect of depression on PA readiness (physical limitation and psychological readiness) and self‐reported PA following the steps described by Baron and Kenny (1986). Hierarchical regression models were tested for their effects. The Self‐Efficacy Theory and Self‐Determination theory provided the theoretical platform for the study. Depression completely mediated the effect of physical limitation (β_dep = 268.57; P < 0.0001) and partially mediated the effect of self‐efficacy on PA (β_dep = 344.16; P < 0.0001). Both intrinsic (P < .0001) and extrinsic motivation (P < .0001) for PA had an independent and significant effect on PA, not mediated by depression.

Conclusions

Patients with HF should be screened for depression throughout the trajectory of the disease as it can impact their physical and psychological readiness to perform PA.

Study design and rationale of the pAtients pResenTing with cOngenital heaRt dIseAse Register (ARTORIA-R)

Aim

Due to improved therapy in childhood, many patients with congenital heart disease reach adulthood and are termed adults with congenital heart disease (ACHD). ACHD often develop heart failure (HF) as a consequence of initial palliative surgery or complex anatomy and subsequently require advanced HF therapy. ACHD are usually excluded from trials evaluating heart failure therapies, and in this context, more data about heart failure trajectories in ACHD are needed to guide the management of ACHD suffering from HF.

Methods and results

The pAtients pResenTing with cOngenital heaRt dIseAse Register (ARTORIA‐R) will collect data from ACHD evaluated or listed for heart or heart‐combined organ transplantation from 16 countries in Europe and the Asia/Pacific region. We plan retrospective collection of data from 1989–2020 and will include patients prospectively. Additional organizations and hospitals in charge of transplantation of ACHD will be asked in the future to contribute data to the register. The primary outcome is the combined endpoint of delisting due to clinical worsening or death on the waiting list. The secondary outcome is delisting due to clinical improvement while on the waiting list. All‐cause mortality following transplantation will also be assessed. The data will be entered into an electronic database with access to the investigators participating in the register. All variables of the register reflect key components important for listing of the patients or assessing current HF treatment.

Conclusion

The ARTORIA‐R will provide robust information on current management and outcomes of adults with congenital heart disease suffering from advanced heart failure.

Prognostic implications of hypo and hyperkalaemia in acute heart failure with reduced ejection fraction. Analysis of cardiovascular mortality and hospital readmissions

BACKGROUND AND OBJECTIVES

Potassium alterations constitute a major clinical problem in decompensated heart failure (HF). This study aims to assess the prognostic implications of hypo and hyperkalaemia on admission for acute HF in cardiovascular mortality and hospital readmissions.

MATERIAL AND METHOD

From January 2016 to June 2020, 1,397 cases with a diagnosis of acute HF were admitted. Admission programmed for study, elective therapies, and patients with LVEF> 40% were excluded. The study was carried out on 689 patients, 45 with K⁺ <3.5 mmol/L, 49K ⁺>5.0 mmol/L and 595K+3.5-5.0 mmol/L. Medical history, baseline clinical profile, drug therapy, and potassium levels obtained upon admission were analysed.

RESULTS

Annual mortality due to hypokalaemia (K+<3.5mmol/L) was 37.8% (HR 2.4; 95% CI: 1.3-4.7; P<.007); for hyperkalaemia 40.8% (HR: 1.9; 95% CI: 0.98-3.51; P<.055). Creatinine level and age were variables associated with mortality in both the hyperkalaemic and hypokalaemic cohorts. Hospital readmissions did not show statistical association with these electrolyte disorders.

CONCLUSIONS

In patients admitted for decompensated HF, both hyperkalaemia and hypokalaemia determined at admission have a negative prognostic impact on survival. Creatinine and age are other independent factors associated with mortality. The effect on the probability of hospital readmission at one year is not demonstrated in this study.

The Female Sex Confers Different Prognosis in Heart Failure: Same Mortality but More Readmissions

Introduction: Heart failure (HF) is a major cause of morbimortality both in men and women. Differences between sex in etiopathogenesis, response to treatment, and quality of care have been found in patients with HF. Females are usually under-represented in clinical trials and there is no solid evidence demonstrating the influence of sex in the prognostic of chronic HF. The primary objective of this study was to analyse the differences in mortality and probability of hospital readmission between males and females with HF. The secondary objective was to compare mortality and probability of hospital readmission by ejection fraction (reduced vs. preserved). Methods: Patients with decompensated HF that were consecutively admitted to a Cardiology Service of a tertiary hospital for 4 years were recruited. De novo HF, death during hospitalization, programmed admissions and those patients with moderate left ventricular ejection fraction (LVEF) (40-50%) were discarded. Finally, 1,291 patients were included. Clinical profiles, clinical history, functional status, treatment at admission, first blood analysis performed, readmissions and mortality at follow-up were analyzed and compared. All patients underwent an echocardiographic study at admission. HF with reduced ejection fraction (HFrEF) was considered when left ventricular ejection fraction (LVEF) was <40%, whilst HF with preserved ejection fraction (HFpEF) was considered when LVEF was ≥50%. Results: 716 participants were male (55%). Basal characteristics showed differences in some outcomes. No differences were found in probability of survival among patients with decompensated HF by sex and ejection fraction (p = 0.25), whereas there was a clear tend to a major survival in females with HFrEF (p < 0.1). Females presented more readmissions when compared to males, independently from the LVEF (females = 33.5% vs. males = 26.8%; p = 0.009). Adjusted multivariate analysis showed no association between sex and mortality (HR = 0.97, IC 95% = 0.73-1.30, p = 0.86), although there was association between female sex and probability of readmission (OR = 1.37, IC 95% = 1.04-1.82, p = 0.02). Conclusions: Sex does not influence mid-term mortality in patients admitted for decompensated HF. Nevertheless, probability of readmission is higher in females independently from LVEF. Thus, it should be considered whether healthcare may be different depending on sex, and a more personalized and frequent care may be recommended in females.

Influence of Gender in Advanced Heart Failure Therapies and Outcome Following Transplantation

Biological differences between males and females change the course of different diseases and affect therapeutic measures' responses. Heart failure is not an exception to these differences. Women account for a minority of patients on the waiting list for heart transplantation or other advanced heart failure therapies. The reason for this under-representation is unknown. Men have a worse cardiovascular risk profile and suffer more often from ischemic heart disease. Conversely, transplanted women are younger and more frequently have non-ischemic cardiac disorders. Women's poorer survival on the waiting list for heart transplantation has been previously described, but this trend has been corrected in recent years. The use of ventricular assist devices in women is progressively increasing, with comparable results than in men. The indication rate for a heart transplant in women (number of women on the waiting list for millions of habitants) has remained unchanged over the past 25 years. Long-term results of heart transplants are equal for both men and women. We have analyzed the data of a national registry of heart transplant patients to look for possible future directions for a more in-depth study of sex differences in this area. We have analyzed 1-year outcomes of heart transplant recipients. We found similar results in men and women and no sex-related interactions with any of the factors related to survival or differences in death causes between men and women. We should keep trying to approach sex differences in prospective studies to confirm if they deserve a different approach, which is not supported by current evidence.

Infective endocarditis in patients with heart transplantation

BACKGROUND

The incidence of nosocomial and health care-related infective endocarditis (IE) is increasing. Heart transplantation (HT) implies immunosuppression and frequent health care contact. Our aim was to describe the current profile and prognosis of IE in HT recipients.

METHODS

Multicenter retrospective registry-based study in Spain and France that included cases between 2008 and 2019.

RESULTS

During the study period, 8305 HT were performed in Spain and France. We identified 18 IE cases (rate 0.2%). Median age was 57 years; 12 were men (67%). Valve involvement did not have a predominant location and three patients (16.7%) had atrial or ventricular vegetations without valve involvement. The median age-adjusted Charlson index was 4 (interquartile range 3-5). Eleven IE cases (61%) were nosocomial/health care-related. Median time (range) between HT and development of IE was 43 months (interquartile range 6-104). The major pathogens were Staphylococcus sp. (n = 8, 44%), Enterococcus sp. (n = 4, 22%), and Aspergillus sp. (n = 3, 17%). Although eight patients (44%) had a surgical indication, it was only performed in three cases (17%). Three patients (17%) died during the first IE hospital admission.

CONCLUSIONS

IE in HT recipients has specific characteristics. Valve involvement does not have a predominant location and non-valvular involvement is common. Three fifths have a nosocomial/health care-related origin. The major pathogens were staphylococci (44%), enterococci (22%), and Aspergillus (17%). In-hospital mortality was 17%.

Gender differences in heart transplantation: Twenty-five year trends in the nationwide Spanish heart transplant registry

The study of gender differences may lead into improvement in patient care. We have aimed to identify the gender differences in heart transplantation (HT) of adult HT recipients in Spain and their evolution in a study covering the years 1993-2017 in which 6740 HT (20.6% in women) were performed. HT indication rate per million inhabitants was lower in women, remaining basically unchanged during the 25-year study period. HT rate was higher in men, although this decreased over the 25-year study period. Type of heart disease differed in men versus women (p < .001): ischemic heart disease 47.6% versus 22.5%, dilated cardiomyopathy 41.3% versus 34.6%, or other 36% versus 17.8%, respectively. Men were more frequently diabetics (18% vs. 13.1% p < .001), hypertensives (33.1% vs. 24% p < .001), and smokers (21.7% vs. 12.9% p < .001), respectively. Women had more pre-HT malignancies (7.1% vs. 2.8% p < .001), and their clinical status was worse at HT due to renal function and mechanical ventilation. Adjusted survival (p = .198) and most of the mortality-related variables were similar in men and women. Death occurred more frequently in women due to rejection (7.9% vs. 5.1% p < .001) and primary failure (18.2% vs. 12.5% p < .001) and in men due to malignancies (15.1% vs. 6.6% p < .001).

Validation of the usefulness of 2-dimensional strain parameters to exclude acute rejection after heart transplantation: a multicenter study

INTRODUCTION AND OBJECTIVES

Two-dimensional speckle-tracking echocardiography has emerged as a promising alternative to endomyocardial biopsy to rule out acute cellular rejection after orthotopic heart transplantation (OHT) in single center studies. In an original cohort, 15.5% and 17% of cutoff points for left ventricular global longitudinal strain (LVGLS) and free-wall right ventricular longitudinal strain, respectively, achieved 100% negative predictive value to exclude moderate or severe acute cellular rejection (ACR ≥ 2R). Our objective was to demonstrate the usefulness of speckle-tracking and validate these cutoff points in an external cohort.

METHODS

A prospective, multicenter study that included patients who were monitored during their first year after OHT was conducted. Echocardiographic studies analyzed by local investigators were compared with simultaneous paired endomyocardial biopsies samples.

RESULTS

A total of 501 endomyocardial biopsy-echocardiographic studies were included in 99 patients. ACR≥2R was present in 7.4% of samples. LVGLS and free-wall right ventricular longitudinal strain were significantly reduced during ACR≥2R on univariate analysis. On multivariate analysis, LVGLS was independently associated with the presence of ACR≥2R. The original cutoff points demonstrated a negative predictive value of 94.3% to exclude ACR≥2R.

CONCLUSIONS

This study maintained a strong negative predictive value to exclude ACR≥2R after OHT and LVGLS was independently associated with the presence of ACR≥2R. We propose the use of speckle-tracking, especially LVGLS, as part of the noninvasive diagnosis and management of ACR.