Echocardiographic observations regarding pericardial effusions associated with cardiac disease

A Rare Case of Severe Isolated Right Heart Failure with Secundum Type Atrial Septal Defect and Mitral Regurgitation Without Pulmonary Hypertension

Typically, right heart failure (RHF) may occur following left heart failure (LHF) in chronic volume overload states such as chronic severe mitral regurgitation (MR) through chronically elevated pulmonary pressures. In Lutembacher syndrome (LS), the direct shunting through a secundum type atrial septal defect (ASD) results in congestive heart failure in the setting of severe mitral stenosis (MS) with or without elevated pulmonary arterial or venous pressures. We report a rare case of severe isolated RHF and bi-atrial enlargement resulting from the direct shunting through a secundum type ASD in the presence of a severe eccentric primary MR. There are no significant cases documented like this after a thorough search using PubMed, Medline, and Google Scholar. A review of the literature suggests that LS is also caused by a combination of mitral regurgitation and a secundum-type atrial septal defect without mitral stenosis, though rarely. Because this is a primary MR, we feel it is a case of LS with MR, ruling out a combination of secondary MR and secundum-type atrial septal defect.

Prognostic impact of small pericardial effusion in acute heart failure

BACKGROUND

The relationship between small pericardial effusion (SPE) and outcomes has not been well studied in patients with heart failure. Therefore, we aimed to investigate the prevalence and importance of SPE in acute heart failure (AHF).

METHODS

A total of 398 hospitalized patients with AHF were retrospectively reviewed. Patients' baseline demographic, clinical, echocardiographic, and laboratory characteristics were noted. SPE was defined as the presence of a pericardial effusion <10 mm. The primary outcome was one-year mortality.

RESULTS

SPE was noted in 54 (13.6%) of the patients. Mortality at one year was greater for patients with a small effusion compared with those without SPE (44.4 vs. 11.4%, respectively; p < 0.001), and the one-year mortality rate for the whole group was 15.8%. Age (HR = 1.12, 95% CI 1.054-1.854, p = 0.024), N-terminal pro-B-type natriuretic peptide >4800 pg/ml (HR = 1.628, 95% CI 01.102-4.805, p = 0.001), left ventricular ejection fraction <30% (HR = 1.878, 95% CI 1.154-4.524, p = 0.001), and presence of SPE (HR = 1.567, 95% CI 1.122-2.991, p = 0.005) were independent predictors of one-year mortality on multivariate analysis.

CONCLUSIONS

The presence of SPE on admission was an independent predictor of one-year mortality in AHF.

Childhood acquired heart disease in Nigeria: an echocardiographic study from three centres

INTRODUCTION

Acquired heart diseases (AHD) are not uncommon in children. The current multi-center study aims to provide a more representative data of AHD in Nigeria.

METHODS

Over 42 months, children referred for echocardiographic evaluation who had confirmed AHD in three centers in Nigeria were recruited. The data was collected on biodata and types of AHD.

RESULTS

There were 116 children with 132 cases of AHD, with a mean age of 6.7 ± 5.7 years. The males were 63(54.3%). Myocarditis/ dilated cardiomyopathy (DCM) 38(28.8%) was the commonest AHD followed by pericarditis 34 (25.8%), rheumatic heart disease (RHD) 23 (17.4%) and hypertrophic cardiomyopathy 18(13.6%). Endomyocardial fibrosis (EMF) 3(2.3%) was uncommon.

CONCLUSION

Nigerian children face a quadruped of AHD namely, myocarditis, DCM, pericardial disease and RHD. As other types of AHD other than RHD are becoming prevalent, there is need to improve the scope of intervention facilities in the country to meet with the demands of the growing afflictions.

Haemodynamically irrelevant pericardial effusion is associated with increased mortality in patients with chronic heart failure

AIMS

Pericardial effusion (PE) is a common finding in cardiac patients with chronic heart failure. The prognostic relevance of a small, haemodynamically non-compromising PE in such patients, however, remains to be determined.

METHODS AND RESULTS

All patients referred to our heart failure clinic and having a baseline echocardiography and follow-up clinical visits were included. Patients with a haemodynamically relevant PE, acute myo-/pericarditis, systemic sclerosis, rheumatoid arthritis, heart transplantation, heart surgery within the last 6 months or malignancies within the last 3 years were excluded. Patients with or without a haemodynamically irrelevant PE were compared regarding all-cause mortality as the primary and cardiovascular death or need for heart transplantation as secondary outcomes. A total of 897 patients (824 patients in the control vs. 73 patients in the PE group) were included. In the PE group, left ventricular ejection fraction (LVEF) was lower [31%, interquartile range (IQR): 18.0-45.0] than in controls (34%, IQR: 25.0-47.0; P = 0.04), while the end-systolic diameters of the left ventricle and the left atrium were larger (P = 0.01 and P = 0.001, respectively). Similarly, in patients with PE, the right ventricle (RV) systolic function was lower (P < 0.005 for both the fractional area change and the tricuspid annulus movement), the dimensions of RV and right atrium (RA) were larger (P < 0.05 for RV and P < 0.01 for RA), and the degree of tricuspid regurgitation was higher (P < 0.0001). Furthermore, in the PE group, the heart rate was higher (P < 0.001) and the leukocyte count as well as CRP values were increased (P = 0.004 and P < 0.0001, respectively); beta-blocker use was less frequent (P = 0.04), while spironolactone use was more frequent (P = 0.03). The overall survival was reduced in the PE group compared with controls (P = 0.02). Patients with PE were more likely to suffer cardiovascular death (1-year estimated event-free survival: 86 ± 5 vs. 95 ± 1%; P = 0.01) and to require heart transplantation (1-year estimated event-free survival: 88 ± 4 vs. 95 ± 1%; P = 0.009). A multivariate Cox proportional hazard model revealed the following independent predictors of mortality: (a) PE (P = 0.04, hazard ratio (HR): 1.95, 95% confidence interval (CI): 1.0-3.7), (b) age (P = 0.04, HR: 1.02, 95% CI: 1.0-1.04) and (c) LVEF <35% (P = 0.03, HR: 1.7, 95% CI: 1.1-2.8).

CONCLUSION

In chronic heart failure, even minor PEs are associated with an increased risk of all-cause mortality, cardiac death, and need for transplantation.

Incidence and significance of pericardial effusion in acute myocardial infarction as determined by two-dimensional echocardiography

To determine the incidence and clinical significance of pericardial effusion after acute myocardial infarction, two-dimensional echocardiography was serially performed in 66 consecutive patients. Pericardial effusion was observed in 17 (26%); the effusion was small in 13 patients, moderate in 3 and large with signs of cardiac tamponade in 1. In this patient, two-dimensional echocardiography strongly suggested myocardial rupture. The observation of pericardial effusion was not associated with age, sex, previous myocardial infarction, atrial fibrillation or treatment with heparin. It was more often a complication of anterior than of inferior acute infarction. Patients with pericardial effusion had higher peak levels of creatine kinase and lactic dehydrogenase and a higher wall motion score index. More patients with pericardial effusion had congestive heart failure or ventricular arrhythmias, developed a ventricular aneurysm or died within 1 year after their infarction. In conclusion, pericardial effusion is frequently visualized by two-dimensional echocardiography after acute myocardial infarction and its presence is associated with an increased occurrence of complications and cardiac death.

Incidence of pericardial effusions in acute myocardial infarctions

To study the incidence of pericardial effusions in the first 72 hours after myocardial infarction, M-mode echocardiograms were performed on 90 of 100 consecutive patients with acute myocardial infarctions. Pericardial effusions were documented in five patients (5.6 percent), four of which resolved without sequelae by the time of discharge. The remaining patient died of presumed myocardial rupture. Pericardial effusions tended to be more common in patients with anterior or anterolateral infarcts and in those who had received intracoronary streptokinase (p less than .10). No patient with postinfarction pericarditis had an effusion.