Severe Valvular Disease Research Articles

Midterm postoperative prognosis of patients with severe left heart valvular disease combined with moderate or severe pulmonary hypertension treated with treprostinil

BackgroundTo investigate the midterm postoperative prognosis of patients with severe left heart valvular disease combined with moderate or severe pulmonary hypertension (PAH) using subcutaneous injection of treprostinil.MethodsA retrospective study was conducted on 61 patients with severe left heart valvular disease combined with moderate or severe PAH who had undergone mechanical mitral and/or aortic valve replacement from April 2018 to October 2018. The patients were divided into the treprostinil group and the conventional treatment group according to whether they received treprostinil. The patients were assessed by SwanGanz catheterization, echocardiography, the 6-min walk test (6-MWT), the Borg dyspnoea score and the SF-36 questionnaire.ResultsCompared with the preoperative data, the mPAP measured by SwanGanz catheterization, the results of the 6-MWT and the Borg score were significantly improved in both groups during the 1 year follow-up (P < 0.05). Regarding the comparison between the groups, the results in group T were significantly better than those in group C, including the results of the 6-MWT and the general health, vitality and mental health of SF-36 during the 1 year follow-up (P < 0.05).ConclusionsContinuous subcutaneous infusion of treprostinil was not capable of decreasing pulmonary pressures in patients with severe left heart valvular disease combined with moderate or severe PAH during 1 year follow-up, although which some of our data suggest that might improve the symptoms and quality of life of these patients.

Are our patients waiting too long for cardiac surgery?

Abstract Introduction Recommended pre-established waiting periods in patients referred for cardiac surgery aim to improve clinical outcomes. Purpose To determine the prognostic impact of the delay until cardiac surgery. Methods We conducted a retrospective study encompassing patients referred to cardiac surgery from a Cardiology Department, since January 2016 to December 2018. Clinical characteristics, diagnostic studies and follow-up were analysed. Primary endpoints were global mortality and re-hospitalization rates at follow-up. Independent predictors of clinical outcomes were identified through a binary logistic regression analysis, considering p=0,05. Results A total of 591 patients were included, with 71,1% male predominance and a mean age of 68,6±11,36 years old. 55,2% of patients had severe valvular disease (aortic – 38,6%, mitral – 9,6%, mixed valvular disease – 2,9%), and 37,1% had surgical coronary artery disease. The mean left ventricle ejection fraction was 56,1% ± 12,2% and the mean Euroscore II was 3,7%. 120 patients (20,3%) required more than one type of surgical intervention. 360 patients (60,9%) were referred to elective procedures, with a mean waiting time of 129,4 days and only 29,2% of them were operated in a 6-week period. The remaining 39,1% of patients needed urgent/emergent surgery, and the mean time until the intervention was 27,2 days (70,1% operated in 2-weeks). Mean waiting time was higher for valvular patients comparing with coronary patients (110,7 vs 48 days; p&amp;lt;0,001). 9,8% and 4,6% of patients were re-hospitalized or died while waiting for surgery, respectively. In a median follow-up of 520 days since the surgical referral, 25,5% of patients were re-hospitalized and 13,7% died. Waiting time was an independent predictor of global mortality (p=0,018), as well as arterial hypertension (p=0,002), severe valvular disease (p&amp;lt;0,001) and higher Euroscore II values (p=0,023). Waiting for surgery in an out-patient setting (p=0,011) and higher Euroscore II values (p=0,002) were independent predictors of re-hospitalization. Conclusion In our study, waiting time until surgery was an independent predictor of global mortality. Efforts should be made to enable referral surgical centres to timely respond to the needs of the population, considering the impact that delaying the appropriate treatment can have on the survival of these patients. Funding Acknowledgement Type of funding source: None

Classification of HFrEF based on echocardiography using machine learning to predict future HFrecEF events

Abstract Background In recent years, there have been sporadic reports of heart failure with recovered ejection fraction (HFrecEF), wherein the left ventricular EF (LVEF) has been improved by considering temporal changes in the LVEF. Although patients with HFrecEF are known to have a better prognosis than other groups, the type of heart failure associated with reduced EF (HFrEF) that subsequently transitions to HFrecEF is yet to be determined. Purpose In this study, we examined whether it is possible to predict future HFrecEF events by stratifying the HFrEF using machine learning based on previously recorded echocardiographic indices. Methods For 162 patients, with HFrEF and a history of hospitalization owing to heart failure, who underwent echocardiography in a stable hemodynamic state, stratification was performed via machine learning. Regarding temporal changes in the LVEF, 73 patients who underwent another echocardiography under stable conditions were investigated (52 with continued HFrEF and 21 with HFrecEF, with a median follow up of 397 days). HFrEF was defined as a condition for patients with an LVEF of less than 50%, and HFrecEF was defined as a condition for patients who initially had an LVEF of less than 50% but later improved. Patients with severe valvular disease, acute myocardial infarction, acute myocarditis, acute pulmonary embolism, post-cardiac surgery, and pericardial disease were excluded from this group. The random forest method was used as a classification method for machine learning. Results When 162 patients with HFrEF were stratified using machine learning, 63 were classified into Cluster 1 and 99 into Cluster 2. Cluster 1 patients showed a significantly higher tendency to transition to HFrecEF than Cluster 2 patients (p=0.001). The Gini coefficient was calculated to identify echocardiographic indices that are important for the purpose of stratification. As a result, LVEF, left ventricular endo-diastolic volume (LVEDV), the thickness of interventricular septum (IVSth), E/A ratio, and the maximum diameter of the inferior vena cava were found to be particularly important. Compared to Cluster 2 patients, Cluster 1 patients exhibited a significantly higher LVEF (41.5±5.9% vs 27.0±7.6%, p&amp;lt;0.001), lower LVEDV (93.6±36.8 mL vs 141.1±51.7 mL, p&amp;lt;0.001), and a higher IVSth (10.8±2.6 mm vs 9.4±2.5 mm, p&amp;lt;0.001). Conclusion Stratifying HFrEF via machine learning based on echocardiographic indices can help predict temporal changes in the LVEF and deduce the echocardiographic indices useful for improving LVEF. Funding Acknowledgement Type of funding source: None

Mechanical Dispersion as a powerful echocardiographic predictor of outcomes after Myocardial Infarction

Abstract Introduction Several studies have addressed the importance of transthoracic echocardiography (TTE) in risk prediction of subsequent adverse events after ST elevation myocardial infarction (STEMI). While several traditional echo parameters have a well-established prognostic value, data derived from 2D-Speckle Tracking Echocardiography (2DSTE) needs further investigation. Objectives To determine if 2DSTE parameters provide additional information beyond conventional echocardiography to predict long-term adverse outcomes in patients admitted with STEMI Methods Retrospective, single-center study, that included all patients without previous cardiovascular events admitted with STEMI (who underwent primary coronary angioplasty) between 2015 and 2017. Patients with poor acoustic windows, severe valvular disease, irregular heart rhythm, and those who died during hospital stay were excluded. We reviewed all pre-discharge TTE to assess conventional parameters of LV systolic and diastolic function and data obtained by 2DSTE: global longitudinal strain (GLS) and peak strain dispersion (PSD), an index that is the standard deviation from time to peak strain of all segments over the entire cardiac cycle. Demographic and clinical data was obtained through electronic hospital records. Minimum follow-up was 2 years. The primary endpoint was a composite of all-cause mortality and cardiovascular re-admission at follow-up. Survival analysis was used to determine independent predictors of the primary endpoint. Results 377 patients were included, mean age 62±13 years, 72% male. Mean LVEF was 50±10% with 19% of patients having LVEF &amp;lt;40%. Mean indexed left atrium volume (LAVi) was 33±10 ml/m2, mean GLS was −14±4%, and PSD was 60±22 msec. Average follow-up was 36±11 months, with a combined endpoint of mortality and hospitalization of 27% (n=102) Univariate analysis of echocardiographic variables revealed an association between heart rate, LVEF, indexed LV end-systolic volume, indexed stroke volume, LAVi, GLS and PSD with the endpoint. However, on multivariate analysis only LAVi [HR 1.030 (95% CI 1.009 - 1.051), p-value = 0.005] and PSD [HR 1.011 (95% CI 1.002 - 1.020), p-value = 0.012] remained independent predictors of the primary endpoint. We determined that a PSD value higher than 52 msec has a sensitivity of 76% and a negative predictive value of 83% for mortality and hospitalization, and that this cut-off point discriminates patients at a higher risk of events in Kaplan-Meier Survival analysis with a Log-Rank p-value=0.001. Conclusion PSD derived by longitudinal strain analysis is a promising prognostic predictor after STEMI. PSD outperformed conventional echocardiographic parameters in the risk stratification of STEMI patients at discharge. Kaplan-Meier Survival Curves Funding Acknowledgement Type of funding source: None

Cardio-ankle vascular index as an arterial stiffness marker improves on cardiovascular events by adding to framingham risk score

Abstract Background The cardio-ankle vascular index (CAVI) is a non-invasive measurement that evaluates arterial stiffness using the analysis of oscillometric waveform during cuff-Inflation. Several studies reported that CAVI is associated with cardiovascular risk factors, while the clinical prognostic value of CAVI as a surrogate marker of atherosclerosis has not been fully elucidated. Meanwhile, the Framingham risk score (FRS) is an established marker of cardiovascular outcomes. Purpose To investigate whether adding CAVI to Framingham risk score improves the prediction of cardiovascular events. Methods This prospective observational study included consecutive 422 patients with cardiovascular risk factors but without known coronary artery disease (69±8 years, 63% men). CAVI was measured by the oscillometric method with VaSera vascular screening system. Patients with atrial fibrillation, left ventricular ejection fraction &amp;lt;50%, both ABI&amp;lt;0.9, severe valvular diseases, or hemodialysis were excluded. Primacy outcomes were cardiovascular death, myocardial infarction, stroke, hospitalization for heart failure and revascularization. Results During a median follow-up of 3.1 years, cardiovascular events occurred in 12.8% (3.3%, 15.7%, and 19.1% in the low, intermediate and high-risk group of stratification by FRS, respectively). The ROC curve analysis for discriminating cardiovascular events showed that the AUC of CAVI added to Framingham risk score was the highest compared to Framingham risk score and CAVI alone (CAVI added to Framingham risk score: AUC 66.9, 95% CI 59.6–74.2, Framingham risk score alone: AUC 61.5, 95% CI 53.8–69.1, CAVI alone: AUC 62.3, 95% CI 54.1–70.6). The logistic regression analysis demonstrated that CAVI and Framingham risk score were independent predictors of cardiovascular events (CAVI: OR 1.381, 95% CI 1.164–1.597, p=0.004, Framingham risk score: OR 1.135, 95% CI 1.044–1.225, p=0.007). Next, when logistic regression analysis was performed simultaneously on Framingham risk factor and CAVI, CAVI was an independent predictor of cardiovascular events (OR 1.347, 95% CI 1.124–1.569, p=0.009). Furthermore, in the likelihood ratio test, CAVI added to Framingham risk score significantly improved the cardiovascular event prediction ability than Framingham risk factor alone. Next, when patients with intermediate risk (n=217) were divided into two groups based on CAVI of 9.0, the Kaplan-Meier estimate showed that events occurred more frequently in higher CAVI group (9.3% and 29.1%, log-rank, P=0.009) and the C-statistic was 0.662. Multiple Cox analysis showed that, in the intermediate risk group, CAVI was an independent predictor of primary outcomes (HR 1.387 per 1 index, 95% CI 1.081–1.779, p=0.010). Conclusion The measurement of CAVI could be a useful predictor for cardiovascular events. In addition, the combination of CAVI and Framingham risk score could improve the predictability compared to the Framingham risk score alone. Funding Acknowledgement Type of funding source: None

Prognostic utility of routine assessment of left ventricular global longitudinal strain and peak atrial reservoir strain in stable heart disease patients

Abstract Background Left ventricular ejection fraction above 40% is a poor predictor of cardiac outcomes. Strain imaging seems to add incremental prognostic value in various heart conditions. Purpose The aim of the study is to investigate whether assessment of both left ventricular global longitudinal strain (LVGLS) and peak atrial reservoir strain (PARS) in routine daily practice is useful in predicting cardiac events. Methods We prospectively enrolled 300 patients (212 men, mean age 64.8±10.9 years old) with stable cardiac disease, referred for echocardiographic examination and eligible for strain imaging. Conventional and speckle tracking 2D rest echocardiography were performed and clinical variables were recorded. We excluded patients with acute coronary syndromes, severe valvular disease, cardiomyopathies, arrhythmia and class IV NYHA. Results During a median follow up of 30 months, there were 111 cardiac events (CE) recorded including: 7 cardiac deaths (CD), 25 acute coronary syndromes (ACS), 45 hospitalisations for worsening heart failure (WHF), 23 episodes of atrial fibrillation (AF), 11 stroke (S). Average EF, LVGLS and PARS in patients with CE were significantly lower than in patients without CE (55.8±8.4%, −17.3±3.9% and 16.3±9.8% vs. 60.4±8.4%, −20.1±3.7% and 28.4±8.2%; p&amp;lt;0.05, p&amp;lt;0.01, p&amp;lt;0.01). In univariate analysis, lower LVGLS, respectively lower PARS were associated with a higher risk of cardiac events [Hazard Ratio (HR)1.26; 95% CI (confidence interval): 1.08–1.34; p&amp;lt;0.01 per 1% decrease, respectively HR 1.38; 95% CI: 1.16–1.42; p&amp;lt;0.01 per 1% decrease]. On multivariate analysis this association was independent after adjustment for age, gender, hypertension, diabetes, ejection fraction, left atrial indexed volume. Lower LVGLS was a better predictor of a composite of ACS and CD (HR 1.38 per 1% decrease 95% CI: 1.16–1.48; p&amp;lt;0.01). Lower PARS had a stronger association with AF, S and WHF (HR 1.49 per 1% decrease 95% CI: 1.19–1.58; p&amp;lt;0.01). In a model defined by depressed LVGLS (more positive than −18%) adding lower PALS, with a cut off point of 20%, significantly improved prediction of CE (C-statistic increased from 0.68 to 0.83, p&amp;lt;0.001). Conclusions Left ventricular global longitudinal strain and peak atrial reservoir strain are independent predictors of cardiac events patients with stable heart disease. Acute coronary syndromes and death were better predicted by depressed LVGLS and onset of atrial fibrillation, stroke and worsening heart failure were better predicted by lower PARS. Routine assessment of both parameters improves significantly prediction of cardiac events and helps clinical decision making. Funding Acknowledgement Type of funding source: None

Prominent involvement of basal left ventricular longitudinal strain in patients with monoclonal gammopathy of undetermined significance

Abstract Background In cardiac amyloidosis the application of Speckle Tracking Echocardiography allows to identify a specific left ventricular (LV) longitudinal strain (LS) pattern characterized by “apical sparing”, with a prominent involvement of basal and middle segments and normal LS of apical cap. The pattern of regional LS has been never investigated in monoclonal gammopathy of undetermined significance (MGUS), a condition which can predispose to cardiac amyloidosis. Purpose To compare LV regional LS patterns and LS base-to-apex behaviour of patients affected by MGUS in comparison with healthy subjects. Methods We enrolled 40 patients affected by MGUS (M/F=20/20; age 62.6±13.8 years), asymptomatic for cardiac symptoms, and a control group of 40 healthy subjects, matched for sex and age. Nineteen (47%) MGUS patients showed prevalent free K light chain and 21 (53%) had prevalent free λ light chain. Participants underwent standard echo-Doppler exam, including Speckle Tracking of the three apical views. Global longitudinal strain (GLS), the average LS of six basal (BLS), six middle (MLS), and six apical (ALS) segments (considered in absolute values) and relative regional strain ratio RRSR [=ALS/(BLS+MLS)] were computed. Exclusion criteria were overt heart failure, LV ejection fraction &amp;lt;53%, coronary artery and congenital heart disease, moderate to severe valvular disease, primary cardiomyopathies, atrial fibrillation and inadequate echo imaging. Results The two groups were comparable for body mass index, blood pressure and heart rate. LV mass index, relative wall thickness, left atrial volume index and Doppler-derived LV diastolic parameters did not differ significantly between the two groups. LV ejection fraction was also similar in MGUS and healthy controls. GLS resulted significantly lower in MGUS group than in controls (20.5±3.0 vs. 22.4±2.0%, p&amp;lt;0.02). BLS (17.1±3.7 vs. 19.2±2.2%, p=0.004), MLS (24.9±3.8 vs. 27.1±3.6%, p&amp;lt;0.01) and ALS (25.1±3.8 vs. 27.1±3.5%, p&amp;lt;0.01) were significantly lower in MGUS than in controls. The intergroup difference of RRSR (0.60±0.05 vs. 0.58±0.04) did not achieve the statistical significance (p=0.26) and none of the MGUS patients had RRSR&amp;gt;1. The figure depicts a LS bull'eye of a MGUS patient showing the prominent involvement of LV basal segments. Conclusions In presence of a normal LV ejection fraction, MGUS patients show a subclinical LV longitudinal systolic dysfunction. This is testified by a reduction of GLS and of regional LS which involves mainly LV basal segments, without substantial changes of relative regional strain ratio. LV regional longitudinal dysfunction could be useful to monitor LV myocardial mechanics during follow-up of MGUS patients. LS bull's eye in a MGUS patient Funding Acknowledgement Type of funding source: None

Association between insulin resistance and left ventricular diastolic dysfunction in non-diabetic general population

Abstract Background Insulin resistance due to visceral fat accumulation plays a central role in the development of diabetic mellitus and subsequent cardiovascular disease. Abdominal obesity and diabetic mellitus are associated with the progression of left ventricular diastolic dysfunction which is the major structural abnormality in patients with heart failure. However, whether insulin resistance influences left ventricular diastolic dysfunction in non-diabetic subjects is unclear. Purpose In this study, we aimed to clarify the association between insulin resistance and left ventricular diastolic dysfunction in non-diabetic general population. Methods We examined 2,572 non-diabetic subjects with preserved left ventricular systolic function (ejection fraction ≥50%) and without a past history of diabetic mellitus, heart failure, coronary artery disease, atrial fibrillation, stroke, moderate to severe valvular disease, who underwent medical check-ups at the University of Tokyo Hospital from January 2009 to December 2018. Diabetes mellitus was defined as fasting glucose level ≥126 mg/dL or a subject's use of oral antidiabetic medications or insulin. We calculated the Homeostasis Model Assessment-Insulin Resistance (HOMA-IR) score [HOMA-IR = fasting glucose (mg/dL) × insulin (μU/mL) / 405], and defined insulin resistance as HOMA-IR ≥2.5. Left ventricular diastolic function was assessed by echocardiography, using tissue doppler analysis (E/E' ratio in septal and lateral). Visceral adiposity was assessed as visceral fat volume measured by computed tomography scanner. Results Mean age was 53.3±9.8 years, and 1,746 subjects (67.9%) were male. Overall, HOMA-IR was 1.1 on average, and HOMA-IR ≥2.5 was observed in 5.0% of study population. BMI and the prevalence of obesity were higher in subjects with HOMA-IR ≥2.5 than in those without. There was no significant difference in left ventricular ejection fraction between HOMA-IR ≥2.5 and ≤2.5. E/E' ratio in septal and lateral were higher in subjects with HOMA-IR ≥2.5 than in those without. Multivariable logistic regression analysis demonstrated that obesity and waist circumference, visceral fat volume were independently associated with HOMA-IR ≥2.5, however, age, hypertension, hypercholesterolemia were not. Further, multiple regression analysis including insulin resistance, age, male gender, obesity, hypertension, hypercholesterolemia, cigarette smoking and visceral fat volume, showed that insulin resistance was an independent determinant of increasing E/E' in both septal and lateral, whereas visceral fat volume was not (Figure 1). Conclusion The results of the present study suggest that insulin resistance due to visceral fat accumulation might be associated with the development of left ventricular diastolic dysfunction in non-diabetic general population without overt cardiovascular disease. Figure 1 Funding Acknowledgement Type of funding source: None

Prevalence of different type of valvular heart disease and other cardiac pathologies of the heart in high risk patients with suspicion of heart failure. A retrospective cohort study.

Background: Valvular heart disease and other cardiac pathologies are associated with impending heart failure. An early diagnosis of these can help prevent the disabling ad disastrous effects and improve the prognosis. Aim: The prevalence of various pathologies associated with heart failure is not known. This study helps in recognizing various pathologies that can lead to heart failure, which if diagnosed early can improve the patient’s outcome. Materials and Methods: A total of 4560 patients were included in the study. All the patients were aged greater than 15 years. Patients with suspicion of heart failure on symptoms were ordered echocardiography. Transthoracic echo was done using echocardiography ultrasound machine using the British Society of Echocardiography guidelines. Echocardiography was done by registered sonologists. Echocardiograph were later read by cardiologists. Data was collected on Excel sheet. Echocardiographic results Of 9 690 patients, were admitted to the hospital during the year 2013 to year 2017 with the suspicion of heart failure based on symptoms echocardiogram was ordered. Among these 2448 patients had normal echocardiographic findings were as 4560 had valvular disease. Among the valvular disease patients 2951(64.71%) were females and 1609(35.2%) were males. Among these 2950(64.6%) had mild valvular disease 959(21.0%) had moderate valvular disease and 651(14.2) patients had severe valvular disease. Mitral stenosis occurred in 1200(26.3%) patients, mitral regurgitation in 2953(64.7%) patients, tricuspid stenosis in 40 (0.008%)patients ,tricuspid regurgitation in 1592(34.8%) patients, aortic stenosis in 81 (0.017%) patients and aortic regurgitation in 1957(42.9%) patients. Ischemic cardiomyopathy was present in 24 patients, dilated cardiomyopathy in 14 patients, rheumatic heart disease in 23 patients, ventricular septum defect in 5 patients ,Atrial septum defect in 2 patients , Apical aneurysm formation in 4 patients, Uremic cardiomyopathy on 3 patients, Grade 1 diastolic dysfunction in 2200 patients, Grade 3 diastolic dysfunction in 400 patients, Bicuspid aortic valve in 5 patients and restrictive cardiomyopathy in two patients, 1100 patients had a thin rim of pericardial effusion and were ordered Thyroid function tests. Conclusion: In the community heart failure is a common cause of death. Various pathologies of the heart are predictors of the outcome and hence early diagnosis can help in proper treatment and increased survival

Timing of intervention in asymptomatic patients with valvular heart disease.

Current management of valvular heart disease (VHD) seeks to optimize long-term outcome by timely intervention. Recommendations for treatment of patients with symptoms due to severe valvular disease are based on a foundation of solid evidence. However, when to intervene in asymptomatic patients remains controversial and decision requires careful individual weighing of the potential benefits against the risk of intervention and its long-term consequences. The primary rationale for earlier intervention is prevention of irreversible left ventricular (LV) myocardial changes that might result in later clinical symptoms and adverse cardiac events. A number of outcome predictors have been identified that facilitate decision-making. This review summarizes current recommendations and discusses recently published data that challenge them suggesting even earlier intervention. In adults with asymptomatic aortic stenosis (AS), emerging risk markers include very severe valve obstruction, elevated serum natriuretic peptide levels, and imaging evidence of myocardial fibrosis or increased extracellular myocardial volume. Currently, transcatheter aortic valve implantation (TAVI) is not recommended for treatment of asymptomatic severe AS although this may change in the future. In patients with aortic regurgitation (AR), the potential benefit of early intervention in preventing LV dilation and dysfunction must be balanced against the long-term risk of a prosthetic valve, a particular concern because severe AR often occurs in younger patients with a congenital bicuspid valve. In patients with mitral stenosis, the option of transcatheter mitral balloon valvotomy tilts the balance towards earlier intervention to prevent atrial fibrillation, embolic events, and pulmonary hypertension. When chronic severe mitral regurgitation is due to mitral valve prolapse, anatomic features consistent with a high likelihood of a successful and durable valve repair favour early intervention. The optimal timing of intervention in adults with VHD is a constantly changing threshold that depends not only on the severity of valve disease but also on the safety, efficacy, and long-term durability of our treatment options.

Effect of Treprostinil on the Early Postoperative Prognosis of Patients with Severe Left Heart Valvular Disease Combined with Severe Pulmonary Hypertension.

Objective: To investigate the effect of treprostinil on the early postoperative prognosis of patients with severe left heart valvular disease combined with severe pulmonary hypertension (PAH).Methods: A retrospective study including 55 patients with severe left heart valvular disease combined with severe PAH who underwent left heart valve replacement in our hospital between January 2019 and May 2019 was conducted. Patients were divided into two groups (treprostinil group and control group), and the clinical data of patients in the two groups were compared and analyzed.Results: Compared with the preoperative status, the mean postoperative pulmonary artery pressure (mPAP) in both groups was significantly lower. Compared with the control group, the treprostinil group had a significantly lower mPAP. Moreover, the postoperative mechanical ventilation time, intensive care unit (ICU) stay, and hospital stay of the treprostinil group were significantly shorter than those of the control group. There were no serious drug-related side effects in either group.Conclusions: Treprostinil can improve the early postoperative prognosis of patients with severe left heart valvular disease combined with severe PAH undergoing prosthetic valve replacement.

P1707SIMULTANEOUS HEART-KIDNEY TRANSPLANT: OUR 10 YEARS' EXPERIENCE

Abstract Background and Aims The number of patients listed and receiving simultaneous heart-kidney transplantation (SHKT) has significantly increased in the last decade. This is likely due to the increased knowledge that SHKT is associated with a significant survival benefit in patients with heart failure with chronic kidney disease (CKD), compared to isolated heart transplant and sequential heart and kidney transplantation. Recent analysis of large data bases has shown a survival benefit in SHKT even in older patients and beyond dialysis dependent patients. However, this benefit is only proven for irreversible CKD which is often difficult to prove in patients with severe heart failure. Our center has the largest experience in SHKT in Portugal, and our aim is to report our experience with a total of 8 recipients and their outcomes after 10 years of follow up. Method We performed a retrospective analysis of all the patients submitted to SHKT in Coimbra University Hospital Center from 1 January 2009 to 31 December 2019. Data was collected using the clinical and laboratorial registries from our database. Follow up at December 2019 varied between 6 months to 10 years (median 5,5 years). Results A total of 8 patients received SHKT between 1 January 2009 and 31 December 2019. Only one patient was female and the mean age at transplant was 58.88 ± 9.7 years. The etiology of heart failure was dilated cardiomyopathy (N=4, 50%), severe valvular disease (N=2, 25%), ischemic cardiomyopathy (N=1, 12,5%) and one patient had familiar amyloidosis (N=1, 12,5%). Regarding CKD, the majority of the patients had type 2 cardiorenal syndrome (N=5, 62,5%), one patient had calcineurin toxicity due to previous liver transplantation, one patient had autosomal dominant polycystic disease, and in one patient the etiology remained unknown. Half of the patients were on chronic hemodialysis program for more than 3 months, and the remaining were preemptive. Regarding post-transplant results, average hospitalization was 19 days. Seven patients (87,5%) had immediate cardiac graft function (mean LVEF 70 ± 5.8% and mean PSAP 22.25 ± 5.6 mmHg). One patient had acute cardiac and subsequent renal graft dysfunction and died during hospitalization. Regarding renal graft outcomes, besides the patient that died, another patient had primary renal graft dysfunction due to renal artery thrombosis and one patient presented late graft function. The remaining five patients had immediate graft function and presented normal kidney graft function at follow up. Regarding complications, neoplasia was reported in two patients (one with sarcoma and the other with prostatic cancer), and there were twenty-five episodes of infection, present in all patients. Mortality at follow up was 37% (N=3). One of these, described above, died during hospitalization twenty-two days after transplant, and the other two died 4 and 5 years later due to a cardiovascular event and sarcoma, respectively. At follow up in 2019 five patients present stable kidney graft, good cardiac function and no recent complications. Conclusion In selected patients with co-existing heart and kidney failure, combined heart and kidney transplantation might be the best approach and appears to be associated with better graft and patient survival. Despite having a small number of cases, our center has the biggest experience in SHKT in Portugal and our results are very satisfying. A multidisciplinary approach between Nephrology, Cardiology and Cardiothoracic Surgery is fundamental and in the next decades it is expected an increase in SHKT number.

Echocardiographic Findings and Cardiovascular Profile of the Very Old Indian Population

Background : Age-related changes in the cardiovascular system are significant, increasing the risk of cardiovascular diseases (CVDs) in older adults. CVDs are currently the leading cause of mortality among older Indian adults, yet very few studies are presently available evaluating the older adults for CVDs and risk factors. We aim to assess the very old adults for the prevalence of CVDs and risk factors using non-invasive assessment tools. Methodology : This hospital-based cross-sectional study included 200 adults aged 75 years and above, visiting a tertiary care hospital in India. They underwent routine clinical evaluation, a comprehensive geriatric assessment and detailed cardiovascular evaluation using non-invasive tools like echocardiography and blood investigations. Results : The overall prevalence of CVDs in this population was 76%. Among the cardiovascular risk factors, hyperhomocysteinemia was present in 83.5%, hypertension in 59.5%, dyslipidemia in 41.5%, sedentary lifestyle in 35%, and obesity in 30.5%, and Diabetes Mellitus in 24.5%. In echocardiographic assessment, valvular dysfunction was present in 33% of the population, though moderate to severe valvular disease was seen in 6.5%. Left ventricular diastolic dysfunction was seen in 81%, systolic dysfunction in 10% and pulmonary hypertension in 5% of the subjects. Conclusion : The very old adults had significant age-related changes in echocardiographic assessment, along with the high prevalence of cardiovascular diseases and risk factors. These findings should encourage physicians to screen the very old adults for cardiovascular risk factors and diseases, for their early identification and effective management.

Meta-Analysis of the Incidence, Prevalence, and Correlates of Atrial Fibrillation in Rheumatic Heart Disease.

Objective:To estimate the incidence, prevalence, and correlates of atrial fibrillation (AF) in a global population with rheumatic heart disease (RHD).Methods:Bibliographic databases were searched to identify all published studies providing data on AF in patients with RHD. Random-effects meta-analysis method was used to pool estimates.Results:Eighty-three studies were included, reporting data from 75,637 participants with RHD in 42 countries. The global prevalence of AF in RHD was 32.8% (range: 4.3%–79.9%). It was higher in severe valvular disease (30.8% vs 20.7%, p = 0.009), in severe mitral valve disease compared to severe aortic disease (30.4% vs 6.3%, p = 0.038). The global cumulative incidence of AF in patients with RHD was 4.8%, 11.4%, 13.2%, and 30.8% at 1, 2, 5, and 10 years of follow-up, respectively. From comparison between patients with and without AF, AF was associated with increased age (mean difference [MD]: 9.5 years; 95% CI: 7.8–1.3), advanced heart failure (odds ratio [OR]: 4.4; 95% CI 2.1–9.3), tricuspid valve involvement (OR: 4.0; 95% CI: 3.0–5.3), history of thromboembolism (OR: 6.2; 95% CI: 3.4–11.4), highly sensitive C-reactive protein (MD: 5.5 mg/dL; 95% CI: 1.2–9.8), systolic pulmonary arterial pressure (MD: 3.6 mmHg; 95% CI: 0.8–6.3), right atrium pressure (MD: 1.5 mmHg; 95% CI: 1.0–2.0), and left atrium diameter (MD: 8.1 mm; 95% CI: 5.5–10.7).Conclusions:About one-third of patients with RHD have AF, with an incidence which almost triples every five years after diagnosis. Factors associated with AF include age, advanced heart failure, thromboembolism, and few cardiac hemodynamics parameters.

Triple neurohormonal blockade in de novo heart failure with reduced ejection fraction during index hospitalization

Introduction and objectivesIn de novo heart failure with reduced ejection fraction (HFrEF) current guidelines support, an initial double combination therapy with angiotensin converting enzyme inhibitors/angiotensin-receptor blockers and betablockers, only adding minerocorticoid receptor antagonists if after treatment optimization left ventricular ejection fraction (LVEF) is still under 40%. An initial triple combination therapy could be an attractive initial approach in the stability phase after an acute HF episode in debut HFrEF; which is what we describe in this report and analyze the factors related to the treatment with triple neurohormonal blockade (TNHB). MethodsRetrospective study of patients discharged from our centre between January 2009 and January 2016 with de novo HFrEF after an acute HF episode with these criteria: 15–85 year-old, creatinine ≤2.5mg/dL, potassium <5.5mEq/L and no organic severe valvular disease. ResultsA total of 280 patients fulfilled the criteria, 58% of them were discharged on TNHB. Mean age was 65.4±12.5 years, LVEF 29.8±7.3% and median NT-ProBNP 2917pg/mL. After a mean follow-up of 43.4±26.6 months, 72 patients died (25.7%), with a mean survival of 76 months. Patients treated with TNHB had a better risk profile (they were younger, better creatinine and lower pulmonary pressures) but poorer LVEF (28.7±7.4% vs. 31.4±6.7%; P=.002). Mean survival on TNHB was better (months, 82.1±3.0 vs. 68.6±3.8; P=.007). Multivariate analysis showed that TNHB was an independent predictor of better survival (HR, 1.79; 1.05–3.05; P=.03). ConclusionsTNHB is commonly used in debut HFrEF, especially in younger patients with worse LVEF. In our cohort TNHB was an independent factor related to better survival.

Mucopolysaccharidosis type VI: case report with first neonatal presentation with ascites fetalis and rapidly progressive cardiac manifestation

BackgroundThe Mucopolysaccharidosis type VI (MPS VI), also known as Maroteaux-Lamy syndrome (OMIM 253200) is an autosomal recessive lysosomal disorder, caused by the deficiency of the enzyme N-acetylgalactosamine 4-sulfatase (also known as arylsulfatase B) due to mutations of the ARSB gene. Cardiologic features are well recognized, and are always present in MPS VI patients. Generally, the onset and the progression of the cardiologic symptoms are insidious, and just a few patients have developed a rapidly progressive disease. Cardiac involvement in MPS VI is a common and progressive feature. For MPS patients, cardiac evaluations are recommended every 1 to 2 years, including blood pressure measurement, electrocardiography and echocardiography. However, congestive heart failure and valvular surgical repair are not frequently seen, and if so, they are performed in adults. Here we report on an atypical MPS VI case with ascites fetalis and a rapidly progressive cardiac disease.Case presentationA 6-month-old Brazilian male, only child of a Brazilian healthy non-consanguineous couple. During pregnancy, second trimester ultrasonography observed fetal ascites and bilateral hydrocele. Physical exam at 6 months-old revealed a typical gibbus deformity and MPS was suspected. Biochemical investigation revealed a diagnosis of MPS type VI, confirmed by molecular test. Baseline echocardiogram revealed discrete tricuspid regurgitation and a thickened mitral valve with posterior leaflet prolapse, causing moderate to severe regurgitation. The patient evolved with mitral insufficiency and congestive heart failure, eventually requiring surgical repair by the first year of age.ConclusionsWe report the first case of MPS VI whose manifestations started in the prenatal period with fetal ascites, with severe cardiac valvular disease that eventually required early surgical repair. Moreover, in MPS with neonatal presentation, including fetal hydrops, besides MPS I, IVA and VII, clinicians should include MPS VI in the differential diagnosis.

Activity of daily life in patients with mucopolysaccharidosis type II after hematopoietic stem cell transplantation

Mucopolysaccharidosis type VII (MPS VII) is a rare autosomal recessive lysosomal storage disorder. MPS VII is caused by mutations in the GUSB gene that encodes β-glucuronidase. Adult MPS VII patients present with musculoskeletal abnormalities, coarse features, and corneal clouding. Cardiac and valvular impairment are common; however, severe valvular disease necessitating surgery has not yet been reported. We present a 32-year-old male MPS VII patient admitted to our hospital with decompensated heart failure. We identified aortic valve disease with severe stenosis (valve area 0.69 cm2) and moderate regurgitation. Severe mitral valve stenosis (valve area 1 cm2) with moderate to severe regurgitation was also found in the patient. In addition, an occlusion of the right coronary artery (RCA) was documented. The patient underwent surgical replacement of the mitral and aortic valves with mechanical prostheses and implantation of a venous bypass graft to his RCA. The surgery led to a significant improvement of his clinical symptoms. Six months after the procedure, both mechanical valves function normally. Histopathological assessment identified chronic inflammatory infiltrates, fibrosis and calcifications in both resected valves. Foamy cytoplasmic transformation was most evident in the valvular interstitial cells. The ultrastructural vacuolar abnormality seen in these cells corresponded to storage changes observed in other MPSs. In conclusion, we describe clinical findings and valvular pathology in an MPS VII patient with the first-reported successful combined surgical valve replacement and myocardial revascularization. The histological and ultrastructural analyses revealed that the lysosomal storage predominantly affected the valvular interstitial cells.

Differential diagnosis for mucopolysaccharidoses (MPSs)

Mucopolysaccharidosis type VII (MPS VII) is a rare autosomal recessive lysosomal storage disorder. MPS VII is caused by mutations in the GUSB gene that encodes β-glucuronidase. Adult MPS VII patients present with musculoskeletal abnormalities, coarse features, and corneal clouding. Cardiac and valvular impairment are common; however, severe valvular disease necessitating surgery has not yet been reported. We present a 32-year-old male MPS VII patient admitted to our hospital with decompensated heart failure. We identified aortic valve disease with severe stenosis (valve area 0.69 cm2) and moderate regurgitation. Severe mitral valve stenosis (valve area 1 cm2) with moderate to severe regurgitation was also found in the patient. In addition, an occlusion of the right coronary artery (RCA) was documented. The patient underwent surgical replacement of the mitral and aortic valves with mechanical prostheses and implantation of a venous bypass graft to his RCA. The surgery led to a significant improvement of his clinical symptoms. Six months after the procedure, both mechanical valves function normally. Histopathological assessment identified chronic inflammatory infiltrates, fibrosis and calcifications in both resected valves. Foamy cytoplasmic transformation was most evident in the valvular interstitial cells. The ultrastructural vacuolar abnormality seen in these cells corresponded to storage changes observed in other MPSs. In conclusion, we describe clinical findings and valvular pathology in an MPS VII patient with the first-reported successful combined surgical valve replacement and myocardial revascularization. The histological and ultrastructural analyses revealed that the lysosomal storage predominantly affected the valvular interstitial cells.

Incidence, underlying conditions, and outcomes of patients receiving acute renal replacement therapies in tertiary cardiac intensive care units: An analysis from the Critical Care Cardiology Trials Network Registry

The prevalence of renal disease in cardiac intensive care units (CICUs) is increasing, but little is known about the utilization, concurrent therapies, and outcomes of patients requiring acute renal replacement therapy (RRT) in this specialized environment. In the Critical Care Cardiology Trials Network, 16 centers submitted data on CICU admissions including acute RRT (defined as continuous renal replacement therapy and/or acute intermittent dialysis). Among 2,985 admissions, 178 (6.0%; interhospital range 1.0%-16.0%) received acute RRT. Patients receiving RRT, versus not, were more commonly admitted for cardiogenic shock (15.7% vs 4.2%, P < .01), cardiac arrest (9.6% vs 3.7%, P < .01), and acute general medical diagnoses (10.7% vs 5.8%, P < .01), whereas acute coronary syndromes (16.9% vs 32.1%, P < .01) were less frequent. Variables independently associated with acute RRT included diabetes, heart failure, liver disease, severe valvular disease, shock, cardiac arrest, hypertension, and younger age. In patients receiving acute RRT, versus not, advanced therapies including mechanical ventilation (55.6% vs 18.0%), vasoactive support (73.0% vs 35.2%), invasive hemodynamic monitoring (59.6% vs 29.2%), and mechanical circulatory support (27.5% vs 8.4%) were more common. Acute RRT was associated with higher in-hospital mortality (42.1% vs 9.3%, adjusted odds ratio 3.74, 95% CI, 2.52-5.53) and longer median length of stay (10.0 vs 5.3 days, P < .01). In conclusion, acute RRT in contemporary CICUs was associated with the provision of other advanced therapies and lower survival. These data underscore the risks associated with the provision of renal support in patients with primary cardiovascular problems and the need to develop standardized indications and potential futility measures in this specialized population.

P780 Left ventricular torsion in severe valvular disease

Abstract Introduction Left Ventricular (LV) torsion is an important component of LV performance. With the development of speckle tracking echocardiography, it became possible and feasible to measure rotation and twisting with a high degree of accuracy. No standard normal values are defined for peak torsion, although mean values around 10° are found in normal subjects with a slight increase with age. Purpose In this study we aimed to evaluate torsion in the different types of severe valvular disease. Methods We conducted a retrospective, observational study including patients with severe valvular disease with suitable images for torsion analysis. We included 61 patients (21 with severe aortic stenosis (AS), 20 with severe aortic regurgitation (AR) and 20 with severe mitral regurgitation (MR). Circumferential basal and apical strain was performed, and peak torsion was calculated. Results were compared between groups and were related with echocardiographic parameters, including left ventricle ejection fraction (LVEF). Results Mean age was 70.3 ± 13.6 years with a male preponderance (66%). Mean LVEF was within normal range in the aortic valve disease group; no significant difference was found in LVEF between AS and AR patients (57 ± 7.7% vs 55 ± 9.7%, p = 0.57). In comparison with the aortic disease group, MR patients had a reduced LVEF (48 ± 17.3% vs 56 ± 8.7%, p = 0.05). Mean peak torsion was 8.9 ± 5.1° in AS, 12.6 ± 4.9° in AR and 7.9 ± 3.2° in MR (p = 0.004). Comparing with aortic valve disease patients, MR patients had a reduced mean peak torsion (7.9 ± 3.2° vs 10.7 ± 5.3°, p = 0.03). In relation with patients with AS, those with AR had a higher peak torsion (12.6 ± 4.9° vs 8.9 ± 5.1°, p = 0.024) and a higher left ventricle end-diastolic volume (87.3 ± 29.1 mL.m-² vs 64.5 ± 24.9 mL.m-², p = 0.011). Circumferential apical strain showed a negative correlation with peak torsion (r²=0.203, p = 0.006) and with LVEF (r²=0.290, p &amp;lt; 0.001). Peak torsion did not demonstrate any significant correlation neither LVEF nor circumferential basal strain. Conclusion LV function and peak torsion are more associated with apical than basal circumferential movement. Aortic valve disease is responsible for LV torsion variations in patients with normal ejection fraction, showing an increase in AR and a reduction in AS. In MR patients a reduced LVEF could entails a decrease in peak torsion.