scholarly journals P1328 A bridge to sucess

2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
S Ranchordas ◽  
P Oliveira ◽  
M Madeira ◽  
M Marques ◽  
T Nolasco ◽  
...  

Abstract A 36-old-man was admitted in hospital with fever and cough, fatigue, rapidly progressive exertional dyspnoea and orthopnoea. Transthoracic echocardiogram (TTE) revealed a mildly dilated left ventricle (LV) with very low ejection fraction (EF), normally sized right chambers, severe right ventricular dysfunction, moderate tricuspid regurgitation and pulmonary artery systolic pressure (PASP) of 52mmHg. The diagnosis of myocarditis was suspected, and he was transferred to the ICU in our centre to proceed the diagnostic work up. Cardiac magnetic resonance showed a severely dilated LV with an EF of 13% and a transmural fibrotic scar on the lateral wall, without signs of myocardial oedema. There was an apical thrombus. Right ventricular EF was 25%. Coronary angiography showed thrombotic occlusion of the circumflex artery with delayed filling of marginal branches. Endomyocardial biopsy was performed but no myocardial lesion was seen. Temporary inotropic support was needed for low cardiac output. Optimized therapy for heart failure and anticoagulation were given and he received an implantable cardioverter defibrillator before discharge in NHYA class II. Two months later, he was re-admitted in his local hospital, complaining of cough with sputum, fever and shortness of breath. He was hypotensive, tachycardic and cyanotic. Blood workup revealed renal failure, coagulopathy and liver dysfunction with C-reactive protein of 10 mg/dL, but no leucocytosis. NT pro-BNP was 2459 pg/mL. Empirical antibiotics and inotropes were started. TTE revealed an EF of 10-15%, moderate functional mitral regurgitation, right ventricular dysfunction, moderate tricuspid regurgitation, and a PASP of 50 mmHg. He was transferred back to our centre. On admission, he was hemodynamically stable with perfusions of dobutamine and noradrenaline. Work up for inclusion in heart transplant waiting list was initiated. However, he deteriorated rapidly. It was decided to implant a biventricular assist device (BiVAD) for circulatory support as bridge to transplant. A short/medium term assist device was chosen as it was expected that a donor would be found in less than a month, and if this was not the case, it could be upgraded to a medium/long term device. Cannulas for LVAD were introduced on the LV apex and ascending aorta and for RVAD in the femoral vein and pulmonary artery. Good flows were achieved on both devices and there were no complications in the immediate post-operative period. He was extubated and weaned off inotropes on day 2. On day 9, a heart donor was found, and he was transplanted. No complications occurred in the post-operative period. He was discharged home on day 24, and resumed an active life. This case illustrates the usefulness of temporary devices to bridge critically ill candidates to heart transplantation. Also, it emphasizes the importance of identifying patients who definitely need a BiVAD when end-stage heart failure involves both ventricles. Abstract P1328 Figure.

2020 ◽  
Vol 17 (2) ◽  
pp. 66-68
Author(s):  
I. E. Chazova ◽  
T. V. Martynyuk ◽  
N. M. Danilov

Pulmonary hypertension (PH) is a group of diseases with a hemodynamic pattern of progressive increase in pulmonary vascular resistance (PVR) and pulmonary artery pressure (PAP), which leads to right ventricular dysfunction and the development of right ventricular heart failure.


Author(s):  
Romain Barthélémy ◽  
Etienne Gayat ◽  
Alexandre Mebazaa

Haemodynamic instability in acute cardiac care may be related to various mechanisms, including hypovolaemia and heart and/or vascular dysfunction. Although acute heart failure patients are often admitted for dyspnoea, many mechanisms can be involved, including left ventricular diastolic and/or systolic dysfunction and/or right ventricular dysfunction. Many epidemiological studies show that clinical signs at admission, morbidity, and mortality differ between the main scenarios of acute heart failure: left ventricular diastolic dysfunction, left ventricular systolic dysfunction, right ventricular dysfunction, and cardiogenic shock. Although echocardiography often helps to assess the mechanism of cardiac dysfunction, it cannot be considered as a monitoring tool. In some cases (in particular, in cases of refractory shock secondary to both vascular and heart dysfunction or in cases of refractory haemodynamic instability associated with severe hypoxaemia), pulmonary artery catheter can help to assess and monitor cardiovascular status and to evaluate response to treatments. Last, macro- and microvascular dysfunctions are also important determinants of haemodynamic instability.


Author(s):  
Alessandro Sionis ◽  
Etienne Gayat ◽  
Alexandre Mebazaa

The underlying pathophysiological derangements of the cardiovascular system in many medical conditions are often complex. Acute circulatory dysfunction can be related broadly to a cardiogenic cause leading to acute heart failure or be secondary to hypovolaemia or vascular dysfunction (e.g. sepsis). Different mechanisms may be involved, including left ventricular diastolic and/or systolic dysfunction and/or right ventricular dysfunction. Many aspects of left ventricular function are explained by considering ventricular pressure–volume characteristics. Epidemiological studies show that clinical signs at admission, morbidity, and mortality differ between the main scenarios of acute heart failure: left ventricular diastolic dysfunction, left ventricular systolic dysfunction, right ventricular dysfunction, and cardiogenic shock. Although echocardiography is usually the first investigation used to assess the mechanism of cardiac dysfunction, in selected cases (in particular, in cases of refractory shock secondary to both vascular and heart dysfunction or in cases of refractory haemodynamic instability associated with severe hypoxaemia), the pulmonary artery catheter can help to assess and monitor the cardiovascular status and evaluate response to treatments.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
T Kuwayama ◽  
R Morimoto ◽  
H Oishi ◽  
H Kato ◽  
Y Kimura ◽  
...  

Abstract Background Dilated cardiomyopathy (DCM) is characterized by a reduction in left and/or right ventricular myocardial contraction, dilatation of biventricular cavity and major cause of heart failure with high morbidity and mortality rates. Right ventricular dysfunction (RVD) recently have been received attention because of 34% of DCM had RVD and considered as a powerful predictor of impaired prognosis in DCM. Pulmonary Artery Pulsatility index (PAPi) is a novel hemodynamic index shown to predict RVD in advanced heart failure, however, it is unknown that even at early phase, PAPi can reflects latent right myocardial damage and predict long-term prognosis in stable DCM patients. Methods From April 2000 to March 2018, we enrolled 566 consecutive patients with cardiomyopathy. All patients underwent laboratory measurement, echocardiography, and cardiac catheterization to evaluate their general conditions. After excluded secondary cardiomyopathy, ischemic cardiomyopathy, and valvular heart disease, finally 162 DCM patients were enrolled. All enrolled patients had NYHA I/II/III and NYHA I/II were 150 patients (92.6%). PAPi was calculated as (systolic pulmonary artery pressure – diastolic pulmonary artery pressure (Pulmonary artery pulse pressure: PAPP)) / right atrial pressure. Median followed up for 4.85 years. In this study 149 patients were performed endomyocardial biopsy in order to exclude secondary cardiomyopathies and 95 patients were assessed using Sirius red staining. Myocardial fibrosis in biopsy specimen was assessed using Sirius red staining, and the positive region was quantified as the collagen volume fraction (CVF). Results The mean age and LV ejection fraction (EF) was 50.9±12.6 years and 30.5±8.3%, respectively. When divided into two groups by median PAPi value [PAPi <3.06 (L-PAP) and PAPi ≥3.06 (H-PAP)], even though there were no significant difference in BNP, pulmonary vascular resistance and right ventricular stroke work index between two groups, the probability of cardiac event-survival was significantly higher in L-PAP than H-PAP by Kaplan-Meier analysis (P=0.012). Furthermore, cox proportional hazard regression analysis revealed that PAPi was independent predictor of cardiac events (hazard ratio: 0.624, P=0.025). In pathological analysis, there was no difference between H-PAPi and L-PAPi in CVF. Conclusion In the calculation of PAPi, PAPP reflects both RV contractility and left atrial filling pressure and this index considered as RV adaptive response to afterload. The denominator of the PAPP is defined by RA pressure, which serves as a marker of RV preload. Thus, PAPi reflect both preload and afterload of RV at the same time and even though estimated patients at early phase, RVD exists in DCM patients without severe myocardial fibrosis, and PAPi may help stratify DCM and predict cardiac events. Kaplan-Meier analysis Funding Acknowledgement Type of funding source: None


2008 ◽  
Vol 7 ◽  
pp. 134-134
Author(s):  
J OREATEJEDA ◽  
L CASTILLOMARTINEZ ◽  
R SILVATINOCO ◽  
V REBOLLARGONZALEZ ◽  
E COLINRAMIREZ ◽  
...  

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