Abstract 13785: Left Ventricular Contractile Entropy in 99mTc-Sestamibi SPECT is a Novel Prognostic Predictor in Patients with Non-ischemic Dilated Cardiomyopathy

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Naoaki Kano ◽  
Takahiro Okumura ◽  
Akinori Sawamura ◽  
Naoki Watanabe ◽  
Hiroaki Mori ◽  
...  
Keyword(s):  
Dilated Cardiomyopathy ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Sampling Point ◽  
Cardiac Events ◽  
Ventricular Ejection Fraction ◽  
Qrs Duration ◽  
Non Ischemic Dilated Cardiomyopathy ◽  
The Mean ◽  
99Mtc Sestamibi

Background: It has been reported that mechanical dispersion of myocardial contraction is increased in failing myocardium. However little is known about the association between contractile entropy evaluated by myocardial scintigraphy and prognosis in patients with non-ischemic dilated cardiomyopathy (NIDCM). Purpose: We aimed to investigate the prognostic value of contractile entropy in patients with NIDCM. Methods: Forty-seven patients (38 male, 55.1 years) with NIDCM were performed gated 99mTc-sestamibi myocardial perfusion SPECT (GMPS) and endomyocardial biopsy. Entropy was automatically calculated as a result of contractile phase analysis for each myocardial sampling point from GMPS, and it reflects a dispersion of global mechanical contraction. All patients were allocated into two groups based on the median of entropy; HE-group: entropy≥0.61 and LE-group: entropy<0.61. All patients were followed up at the mean of 2.8 years. Results: The mean QRS duration, left ventricular ejection fraction (LVEF) and plasma brain natriuretic peptide (BNP) levels were 114 msec, 35% and 225 pg/mL, respectively. Although there were no significant differences in QRS duration and plasma BNP levels between the two groups, LVEF was lower in the HE-group than in the LE-group (31.1% vs 39.8%, p=0.002). In Kaplan-Meier survival analysis, cardiac event rate was significantly higher in the HE-group (Figure). Cox proportional hazard analysis revealed that the HE-group was a significant determinant of cardiac events (Hazard Ratio: 7.66; 95%CI: 0.070-2.532; p=0.033). The mRNA expression level of sarcoplasmic endoplasmic reticulum Ca2+ ATPase (SERCA2a) in biopsy specimens was significantly lower in the LE-group (p=0.015). Conclusion: Contractile entropy, reflecting an impairment of global left ventricular contraction, might be useful to predict a poor prognosis in patients with NIDCM.

scholarly journals Serum autotaxin level predicts future cardiac events in patients with dilated cardiomyopathy

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
T Araki ◽  
T Okumura ◽  
T Mizutani ◽  
Y Kimura ◽  
S Kazama ◽  
...  
Keyword(s):  
Survival Analysis ◽  
Dilated Cardiomyopathy ◽  
Volume Fraction ◽  
Left Ventricular ◽  
Cox Proportional Hazards ◽  
Left Ventricular Ejection ◽  
Myocardial Inflammation ◽  
Prognostic Impact ◽  
Cardiac Events ◽  
Ventricular Ejection Fraction

Abstract Background Autotaxin (ATX) has been reported to promote myocardial inflammation and subsequent cardiac remodeling through lysophosphatidic acid (LPA) production. However, the prognostic impact of ATX has not been clarified in dilated cardiomyopathy (DCM). Purpose We aimed to investigate the prognostic impact of ATX in patients with DCM. Methods We enrolled 104 DCM patients (49.8 years, 76 males). The subjects underwent blood sampling, echocardiography, cardiac catheterization, and endomyocardial biopsy. Gender differences in serum ATX levels have been reported, thus we divided the subjects into two groups using median serum ATX levels for men and women: High-ATX group and Low-ATX group. All patients were followed up by expert cardiologists. The cardiac event was defined as a composite of cardiac death and hospitalization for worsening heart failure. Results Eighty-nine percent of the subjects were classified as New York Heart Association functional class I or II. Female patients had higher serum ATX levels than male patients, with median values of 257.0 ng/mL and 203.5 ng/mL, respectively (Figure A). The average left ventricular ejection fraction and brain natriuretic peptide levels were 30.6% and 122.5 pg/mL. In survival analysis, cumulative event-free probability was significantly lower in High ATX group (p=0.007, Figure B). In Cox proportional hazards analysis, High-ATX was one of the independent predictors of composite cardiac events (Hazards Ratio, 2.575; p=0.043). On the other hand, high sensitive C-reactive protein and collagen volume fraction in myocardial samples were not significant predictors. Conclusion High serum ATX level was associated with poor prognosis in patients with DCM. FUNDunding Acknowledgement Type of funding sources: None. Gender difference in autotaxin levels Survival analysis of cardiac events

Abstract 15519: The Prognostic Impact of Transcardiac Gradient of Follistatin-like 1 in Patients With Non-ischemic Dilated Cardiomyopathy

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Hideo Oishi ◽  
TAKAHIRO OKUMURA ◽  
Koji Ohashi ◽  
Yuki Kimura ◽  
Shingo Kazama ◽  
...  
Keyword(s):  
Heart Failure ◽  
Dilated Cardiomyopathy ◽  
Left Ventricular ◽  
Right Atrial ◽  
Left Ventricular Ejection ◽  
Prognostic Impact ◽  
Ventricular Ejection Fraction ◽  
Median Plasma ◽  
Non Ischemic Dilated Cardiomyopathy ◽  
The Difference

Introduction: Follistatin-like 1 (FSTL1) is secreted from various tissues including myocardium and could play a cardioprotective role against harmful stimuli. It has been shown that the expression of FSTL1 protein in patients with heart failure is higher than that in healthy subjects. However, little is known about the association between serum FSTL1 levels and the cardiac prognosis. Hypothesis: We hypothesized that the transcardiac gradient of FSTL1 reflect myocardial FSTL1 and is useful for predicting prognosis in patients with non-ischemic dilated cardiomyopathy (NIDCM). Methods: Thirty-two NIDCM patients were enrolled. Blood samples were simultaneously collected from the aortic root (Ao), coronary sinus (CS) as well as peripheral vein during cardiac catheterization. The transcardiac gradient of FSTL1 was calculated by the difference between serum FSTL1 levels of CS and Ao (FSTL1 CS-Ao ). Patients were divided into two groups at the median of FSTL1 CS-Ao : Low FSTL1 CS-Ao group, <0 ng/mL; High- FSTL1 CS-Ao group, > 0 ng/mL. The primary endpoint of this study was the occurrence of a cardiac event, which was defined as a composite of cardiac deaths and unexpected hospitalizations for worsening heart failure. Results: The median plasma B type natriuretic levels and mean left ventricular ejection fraction in the Low and High FSTL1 CS-Ao groups were 91.9 (21.7 - 277.5) vs. 94.1 (59.1 - 236.5) pg/mL (P = 1.000) and 31.4 ± 6.5 vs. 30.5 ± 7.3 % (P = 0.714), respectively. FSTL1 CS-Ao was negatively correlated with pulmonary capillary wedge pressure (R = -0.400, P = 0.023), mean pulmonary artery pressure (R = -0.40, P = 0.023) and right atrial pressure (R = -0.41, P = 0.019). Kaplan-Meier analysis showed that event-free survival rate was significantly lower in the Low FSTL1 CS-Ao group (p=0.0126). Conclusions: Transcardiac gradient of FSTL1 is associated with hemodynamics and low transcardiac gradient of FSTL1 might be associated with poor prognosis in NIDCM patients.

Prognostic impact of multiple fragmented QRS on cardiac events in idiopathic dilated cardiomyopathy

EP Europace ◽  
2020 ◽  
Author(s):  
Kyohei Marume ◽  
Teruo Noguchi ◽  
Tsukasa Kamakura ◽  
Emi Tateishi ◽  
Yoshiaki Morita ◽  
...  
Keyword(s):  
Dilated Cardiomyopathy ◽  
Cox Regression ◽  
Left Ventricular ◽  
Idiopathic Dilated Cardiomyopathy ◽  
Left Ventricular Ejection ◽  
Prognostic Impact ◽  
Cardiac Events ◽  
Ventricular Ejection Fraction ◽  
Fragmented Qrs ◽  
Kaplan Meier

Abstract Aims  To evaluate the prognostic impact of fragmented QRS (fQRS) on idiopathic dilated cardiomyopathy (DCM). Methods and results  We conducted a prospective observational study of 290 consecutive patients with DCM (left ventricular ejection fraction ≤ 40%) and narrow QRS who underwent cardiac magnetic resonance. We defined fQRS as the presence of various RSR′ patterns in ≥2 contiguous leads representing the anterior (V1–V5), inferior (II, III, and aVF), or lateral (I, aVL, and V6) myocardial segments. Multiple fQRS was defined as the presence of fQRS in ≥2 myocardial segments. Patients were divided into three groups: no fQRS, single fQRS, or multiple fQRS. The primary endpoint was a composite of hard cardiac events consisting of heart failure death, sudden cardiac death (SCD), or aborted SCD. The secondary endpoints were all-cause death and arrhythmic event. During a median follow-up of 3.8 years (interquartile range, 1.8–6.2), 31 (11%) patients experienced hard cardiac events. Kaplan–Meier analysis showed that the rates of hard cardiac events and all-cause death were similar in the single-fQRS and no-fQRS groups and higher in the multiple-fQRS group (P = 0.004 and P = 0.017, respectively). Multivariable Cox regression identified that multiple fQRS is a significant predictor of hard cardiac events (hazard ratio, 2.23; 95% confidence interval, 1.07–4.62; P = 0.032). The multiple-fQRS group had the highest prevalence of a diffuse late gadolinium enhancement pattern (no fQRS, 21%; single fQRS, 22%; multiple fQRS, 39%; P &lt; 0.001). Conclusion  Multiple fQRS, but not single fQRS, is associated with future hard cardiac events in patients with DCM.

scholarly journals Clinical course of dilated cardiomyopathy in children

2019 ◽  
Vol 6 (2) ◽  
pp. 468
Author(s):  
Sivakumar E. ◽  
Ramasubramaniam P.
Keyword(s):  
Left Ventricular Ejection Fraction ◽  
Ejection Fraction ◽  
Dilated Cardiomyopathy ◽  
Left Ventricular ◽  
Diameter Ratio ◽  
Ventricular Ejection ◽  
Left Ventricular Ejection ◽  
Ventricular Ejection Fraction ◽  
Group I ◽  
The Mean

Background: Dilated cardiomyopathy (DCM) in children is a serious disorder. Here authors study the risk factors for predicting prognosis of dilated cardiomyopathy in children.Methods: An observational case series study done in Institute of child health and research centre, Government Rajaji hospital, Madurai during September 2012 to August 2014. The diagnosis of DCM was based on clinical examination and echocardiographic evidence. Patients were followed up and grouped according to the outcome as improved or cured (group I), no change in clinical status (group II) and worsened or dead (group III).Results: 31 children less than 12 years of age were diagnosed as DCM. 13 children came under group I with a mean age of 2.15±2.5 and the mean cardiothoracic diameter ratio in chest X-ray was 59.8±3.3. The mean left ventricular ejection fraction at the time of admission was 38.7±3.04 and was 52.1±2.7 on last follow up. 11 children came under Group III with a mean age of 5.35±4.4 and the mean cardiothoracic diameter ratio was 65.3±2.7. The mean left ventricular ejection fraction was 35.8±3.7 at admission and 32.6±2.9 on last follow up. Only two children came under Group II and hence their comparison is negligible.Conclusions: Children with higher age at the time of diagnosis, higher cardiothoracic diameter ratio in chest X-ray and a low left ventricular ejection fraction on serial echocardiogram were associated with a poor outcome.

Abstract 14515: The Prognostic Impact of Human Epididymis Protein 4 Levels in Patients With Dilated Cardiomyopathy

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Takahiro OKUMURA ◽  
Hideo Oishi ◽  
Yuki Kimura ◽  
Takashi Araki ◽  
Takashi Mizutani ◽  
...  
Keyword(s):  
Dilated Cardiomyopathy ◽  
Volume Fraction ◽  
Interstitial Fibrosis ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Prognostic Impact ◽  
Cardiac Events ◽  
Body Protein ◽  
Ventricular Ejection Fraction ◽  
Activated Fibroblasts

Introduction: Interstitial fibrosis of myocardium is an important component of cardiac dysfunction. Myofibroblasts, which are activated fibroblasts, contribute to interstitial fibrosis in dilated cardiomyopathy (DCM). Recently, human epididymal body protein 4 (HE4) has attracted attention as a marker specific to myofibroblasts. Hypothesis: We hypothesized that the circulating serum HE4 levels were associated with future cardiac events in DCM. Methods: We enrolled 44 DCM patients with stable heart failure (HF) condition. Patients with cancer were excluded. We collected blood samples from peripheral vain (PV), ascending aorta (Ao), and coronary sinus (CS) during cardiac catheterization. They were divided into two groups at the median of PV HE4 levels: High PV group (>69 pmol/L); n=22, Low PV group (<69 pmol/L); n=22. Furthermore, they were also divided into groups with median of CS-Ao HE4 levels: High CS-Ao group (>-0.15 pmol/L); n=22, Low CS-Ao group (<-0.15 pmol/L); n=22. Cardiac events were defined as composite of cardiac deaths and hospitalization for worsening HF. Results: The mean age, left ventricular ejection fraction (LVEF), and plasma BNP level were 56 years, 32%, and 205 pg/mL. Between two groups, there were no significant differences in age, gender, LVEF, left ventricular end-diastolic diameter, cardiac index, and pulmonary capillary wedge pressure. However, estimated glomerular filtration rate was significantly lower in the High PV group (p=0.025). Survival analysis revealed that the High PV group had a higher rate of cardiac events ( Figure ). However, there was no difference between two CS-Ao groups. As for the pathological analysis, not only the peripheral HE4 level but CS-Ao HE4 level did not significantly correlate with collagen volume fraction in biopsy samples. Conclusion: Elevated circulating HE4 is associcated with poor prognosis in ambulatory patients with NIDCM. However, transcardiac gradient of plasma HE4 level might not be associated.

scholarly journals Familial dilated cardiomyopathy with RBM20 mutation in an Indian patient: a case report

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Soumi Das ◽  
Sandeep Seth
Keyword(s):  
Ejection Fraction ◽  
Dilated Cardiomyopathy ◽  
Age Of Onset ◽  
Arrhythmogenic Right Ventricular Cardiomyopathy ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Early Age ◽  
Indian Patient ◽  
Ventricular Ejection Fraction ◽  
First Case

Abstract Background Dilated cardiomyopathy (DCM) is a disease of the heart muscle characterized by ventricular dilation and a left ventricular ejection fraction of less than 40%. Unlike hypertrophic cardiomyopathy (HCM) and arrhythmogenic right ventricular cardiomyopathy (ARVC), DCM-causing mutations are present in a large number of genes. In the present study, we report a case of the early age of onset of DCM associated with a pathogenic variant in the RBM20 gene in a patient from India. Case presentation A 19-year-old Indian male diagnosed with DCM was suggested for heart transplantation. His ECG showed LBBB and echocardiography showed an ejection fraction of 14%. He had a sudden cardiac death. A detailed family history revealed it to be a case of familial DCM. Genetic screening identified the c.1900C>T variant in the RBM20 gene which led to a missense variant of amino acid 634 (p.Arg634Trp). Conclusion To the best of our knowledge, the variant p.Arg634Trp has been earlier reported in the Western population, but this is the first case of p.Arg634Trp in an Indian patient. The variant has been reported to be pathogenic at an early age of onset; therefore, close clinical follow-up should be done for the family members caring for the variant.

scholarly journals Temporal trends in outcome and patient characteristics in dilated cardiomyopathy, data from the Swedish Heart Failure Registry 2003–2015

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Helen Sjöland ◽  
Jonas Silverdal ◽  
Entela Bollano ◽  
Aldina Pivodic ◽  
Ulf Dahlström ◽  
...  
Keyword(s):  
Heart Failure ◽  
Dilated Cardiomyopathy ◽  
Temporal Trends ◽  
Physical Symptoms ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Continuous Change ◽  
Ventricular Ejection Fraction ◽  
Increased Risk ◽  
Over Time

Abstract Background Temporal trends in clinical composition and outcome in dilated cardiomyopathy (DCM) are largely unknown, despite considerable advances in heart failure management. We set out to study clinical characteristics and prognosis over time in DCM in Sweden during 2003–2015. Methods DCM patients (n = 7873) from the Swedish Heart Failure Registry were divided into three calendar periods of inclusion, 2003–2007 (Period 1, n = 2029), 2008–2011 (Period 2, n = 3363), 2012–2015 (Period 3, n = 2481). The primary outcome was the composite of all-cause death, transplantation and hospitalization during 1 year after inclusion into the registry. Results Over the three calendar periods patients were older (p = 0.022), the proportion of females increased (mean 22.5%, 26.4%, 27.6%, p = 0.0001), left ventricular ejection fraction was higher (p = 0.0014), and symptoms by New York Heart Association less severe (p < 0.0001). Device (implantable cardioverter defibrillator and/or cardiac resynchronization) therapy increased by 30% over time (mean 11.6%, 12.3%, 15.1%, p < 0.0001). The event rates for mortality, and hospitalization were consistently decreasing over calendar periods (p < 0.0001 for all), whereas transplantation rate was stable. More advanced physical symptoms correlated with an increased risk of a composite outcome over time (p = 0.0043). Conclusions From 2003 until 2015, we observed declining mortality and hospitalizations in DCM, paralleled by a continuous change in both demographic profile and therapy in the DCM population in Sweden, towards a less affected phenotype.

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